Foundation pit support device for deep foundation pit construction

Abstract

The utility model discloses a foundation pit support device for deep foundation pit construction, which comprises a fixing frame, a plurality of supporting rods, a plurality of supporting rods, a plurality of supporting rods, a plurality of supporting rods, a plurality of supporting rods, a plurality of supporting rods, a plurality of supporting rods, a plurality of supporting rods, a plurality of supporting rods, a plurality of supporting rods and a plurality of supporting rods, the left side face and the right side face of the fixing frame are each provided with a through hole communicated with the interior of the fixing frame. The right end of the first movable frame is connected into the through hole in the left side surface of the fixed frame in a sliding manner; the left end of the second movable frame is connected into the through hole in the right side surface of the fixed frame in a sliding manner; one end of each sliding block is fixedly connected with the top of the first movable frame and the top of the second movable frame, each sliding block is connected into the corresponding limiting hole in a sliding mode, and the other end of each sliding block is connected with the corresponding positioning hole in an inserted mode through a limiting plug pin. The foundation pit supporting device effectively solves the problems that a traditional foundation pit supporting device is fixed in size, cannot be flexibly adjusted according to the size of a construction foundation and is difficult to provide enough supporting force.

Description

Technical Field

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

[0002] In deep foundation pit construction, the foundation pit retaining structure is a crucial facility for ensuring construction safety and preventing foundation pit collapse. On the one hand, existing foundation pit retaining structures have fixed dimensions and cannot be flexibly adjusted according to the size of the construction site. This often necessitates preparing various sizes of retaining structures to accommodate different foundation pit dimensions, increasing construction costs, reducing efficiency, and causing numerous inconveniences. On the other hand, the stability and safety of existing foundation pit retaining structures also have certain issues. Especially in environments with complex geological conditions or loose soil, existing retaining structures often fail to provide sufficient support, easily leading to foundation pit collapses and other safety accidents. This not only poses significant safety hazards to construction workers but may also have serious impacts on the surrounding environment.

[0003] Therefore, there is an urgent need to design a foundation pit support device for deep foundation pit construction to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a foundation pit support device for deep foundation pit construction, which effectively solves the problems of traditional foundation pit support devices having fixed dimensions, being unable to be flexibly adjusted according to the size of the construction foundation, and being unable to provide sufficient support.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a foundation pit support device for deep foundation pit construction, comprising:

[0006] A hollow fixing frame has a limiting hole extending along its length on its top surface and several positioning holes symmetrically opened on the front and rear sides of the limiting hole. A through hole communicating with the interior is opened on the left and right sides of the fixing frame.

[0007] A first movable frame, the right end of which is slidably connected to a through hole on the left side of the fixed frame, and a first side frame is fixedly connected to the left end of the first movable frame;

[0008] A second movable frame, the left end of which is slidably connected to a through hole on the right side of the fixed frame, and a second side frame is fixedly connected to the right end of the second movable frame; and

[0009] Two sliding blocks, one end of which is fixedly connected to the top of the first movable frame and the second movable frame respectively, and both are slidably connected in the limiting hole, have their other ends inserted into the positioning hole through a limiting pin.

[0010] Preferably, the front and rear sides of the fixed frame, as well as the first and second movable frames, are all equipped with railings.

[0011] Preferably, both the first side frame and the second side frame have a first support leg threadedly connected to their bottoms.

[0012] Preferably, the bottom left and right ends of the fixed frame are respectively connected to a support frame by a bolt thread, and the bottom of each support frame is fixedly connected to a second support leg.

[0013] Preferably, each of the second support legs has a plurality of mounting holes on its base.

[0014] Preferably, a pull groove is provided on the front and rear sides of both the first side frame and the second side frame, and the inside of the pull groove is also provided with anti-slip texture.

[0015] Preferably, two slide rails are fixedly provided on the inner wall of the fixed frame, which are slidably connected to the first movable frame and the second movable frame respectively.

[0016] This utility model provides a foundation pit support device for deep foundation pit construction, which has the following beneficial effects:

[0017] 1. This utility model effectively achieves the height adjustability and portability of the foundation pit retaining device by setting up a sliding connection between the first and second movable frames. Workers can easily adjust the positions of the first and second movable frames according to the actual size of the construction foundation and fix them with limit pins to ensure that the foundation pit retaining device can adapt to different foundation pit sizes. In addition, after use, all parts can be quickly folded up and combined, which greatly reduces the space requirements for handling and storage and improves construction efficiency.

[0018] 2. This utility model, through the setting of a detachable support frame and a first support leg and a second support leg, not only provides additional stability, but also allows workers to choose a suitable fixing method according to ground conditions, further enhancing the overall stability of the foundation pit retaining device. Especially in environments with complex geological conditions or loose soil, the mounting holes at the bottom of the second support leg can accommodate fixing devices such as expansion plugs, ensuring that the foundation pit retaining device can be firmly fixed to the ground, effectively preventing safety accidents such as foundation pit collapse. Attached Figure Description

[0019] Figure 1 This is a structural schematic diagram of a foundation pit support device for deep foundation pit construction according to the present invention.

[0020] Figure 2This is a schematic diagram showing the structure of a foundation pit support device for deep foundation pit construction according to the present invention.

[0021] Figure 3 for Figure 2 Enlarged view of point A.

[0022] In the diagram: 1. Fixed frame; 11. Limiting hole; 12. Positioning hole; 13. Support frame; 14. Second support leg; 15. Mounting hole; 2. First movable frame; 3. First side frame; 4. Second movable frame; 5. Second side frame; 6. Sliding block; 7. Limiting pin; 8. Fence; 9. Pulling groove; 10. First support leg. 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 of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] Please see Figure 1-3 This utility model provides a technical solution: a foundation pit support device for deep foundation pit construction, comprising:

[0025] A hollow mounting frame 1 has a limiting hole 11 extending along its length on its top surface and several positioning holes 12 symmetrically opened on the front and rear sides of the limiting hole 11. A through hole communicating with its interior is opened on its left and right side surfaces respectively. In this embodiment, a support frame 13 is threadedly connected to the left and right ends of the bottom of the mounting frame 1 by a bolt, which facilitates its installation and removal. A second support leg 14 is fixedly connected to the bottom of each support frame 13, which can provide additional stability to the mounting frame 1. Several mounting holes 15 are opened on the base of each second support leg 14, which can facilitate fixing the second support leg 14 to the ground and enhance the stability of the entire enclosure structure.

[0026] A first movable frame 2, the right end of which is slidably connected to a through hole on the left side of the fixed frame 1, and the left end of which is fixedly connected to a first side frame 3;

[0027] A second movable frame 4 has its left end slidably connected to a through hole on the right side of the fixed frame 1, and its right end is fixedly connected to a second side frame 5. In this embodiment, two slide rails (not shown in the figure) are fixedly installed on the inner wall of the fixed frame 1, which are slidably connected to the first movable frame 2 and the second movable frame 4 respectively. The slide rails (not shown in the figure) allow the first movable frame 2 and the second movable frame 4 to slide smoothly along the inner wall of the fixed frame 1, ensuring stability and smoothness during the sliding process. A pull groove 9 is opened on the front and rear sides of the first side frame 3 and the second side frame 5, and the inside of the pull groove 9 is also provided with anti-slip texture to enhance its friction, making it easier and safer for workers to operate. The position of the first movable frame 2 and the second movable frame 4 can be adjusted by pulling the pull groove 9 to adapt to different sizes of construction foundations. After use, these parts can be easily folded up and combined for easy transportation. A first support leg 10 is threadedly connected to the bottom of the first side frame 3 and the second side frame 5, which facilitates quick installation or disassembly by workers and increases the flexibility and convenience of use.

[0028] Two sliding blocks 6, one end of which is fixedly connected to the top of the first movable frame 2 and the second movable frame 4 respectively and both are slidably connected in the limiting hole 11, have their other ends inserted into the positioning hole 12 through a limiting pin 7. When the first movable frame 2 and the second movable frame 4 are moved to the required construction position, the first movable frame 2 and the second movable frame 4 can be fixed by inserting the limiting pin 7 into the corresponding positioning hole 12.

[0029] In addition, in this embodiment, the front and rear sides of the fixed frame 1, as well as the first movable frame 2 and the second movable frame 4, are all provided with railings 8.

[0030] The working principle and usage of this utility model are as follows:

[0031] First, select a suitable installation location based on the actual location and size of the deep foundation pit, and ensure that the ground is flat, firm, and free of debris and obstacles. Place the fixing frame 1 in the predetermined position and ensure that it is stable and immovable. If the ground is uneven, use pads or other supports to level it. Connect the detachable support frame 13 to both ends of the bottom of the fixing frame 1 with bolts and threads. Then, fix the second support leg 14 to the bottom of the support frame 13 to ensure that the second support leg 14 can be firmly supported on the ground. If the ground is soft, expansion plugs or other fixing devices can be filled into the mounting holes 15 of the second support leg 14 to ensure the firm installation of the second support leg 14, thereby enhancing the stability and safety of the entire foundation pit enclosure device.

[0032] Secondly, the first side frame 3 and the second side frame 5 are respectively installed and fixedly connected to the left and right ends of the first movable frame 2 and the second movable frame 4, and the first support leg 10 is threaded to the bottom of the first side frame 3 and the second side frame 5 to ensure that the first support leg 10 can be stably supported on the ground.

[0033] Then, based on the actual dimensions of the deep foundation pit, the positions of the first movable frame 2 and the second movable frame 4 are adjusted by pulling the pulling groove 9, so that they can effectively protect the deep foundation pit;

[0034] Finally, after adjusting the positions of the first movable frame 2 and the second movable frame 4, the first movable frame 2 and the second movable frame 4 are effectively fixed by inserting the limiting pin 7 into the corresponding positioning hole 12. After the construction is completed, the first movable frame 2 and the second movable frame 4 can be moved and retracted into the fixed frame 1 by releasing the limiting pin 7, which reduces the volume of the foundation pit protection device and facilitates transportation.

[0035] In summary, this utility model has the following advantages:

[0036] This foundation pit support device for deep foundation pit construction effectively achieves height adjustability and portability through the sliding connection of a first and second movable frame. Workers can easily adjust the positions of the first and second movable frames according to the actual size of the foundation and fix them with limiting pins, ensuring the support device can adapt to different foundation pit sizes. Furthermore, after use, all components can be quickly folded and combined, greatly reducing the space requirements for handling and storage and improving construction efficiency. The detachable support frame and the first and second support legs not only provide additional stability but also allow workers to choose appropriate fixing methods based on ground conditions, further enhancing the overall stability of the foundation pit support device. Especially in environments with complex geological conditions or loose soil, the mounting holes at the bottom of the second support leg can accommodate expansion plugs and other fixing devices, ensuring the foundation pit support device is firmly fixed to the ground and effectively preventing foundation pit collapse and other safety accidents. In addition, this invention also has the advantages of simple structure, low cost, and easy installation and dismantling.

[0037] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A foundation pit support device for deep foundation pit construction, characterized in that, The device includes: A hollow fixing frame has a limiting hole extending along its length on its top surface and several positioning holes symmetrically opened on the front and rear sides of the limiting hole. A through hole communicating with the interior is opened on the left and right sides of the fixing frame. A first movable frame, the right end of which is slidably connected to a through hole on the left side of the fixed frame, and a first side frame is fixedly connected to the left end of the first movable frame; A second movable frame, the left end of which is slidably connected to a through hole on the right side of the fixed frame, and a second side frame is fixedly connected to the right end of the second movable frame; and Two sliding blocks, one end of which is fixedly connected to the top of the first movable frame and the second movable frame respectively, and both are slidably connected in the limiting hole, have their other ends inserted into the positioning hole through a limiting pin.

2. The foundation pit support device for deep foundation pit construction according to claim 1, characterized in that: The front and rear sides of the fixed frame, as well as the first and second movable frames, are all equipped with railings.

3. The foundation pit support device for deep foundation pit construction according to claim 1, characterized in that: Both the first side frame and the second side frame have a first support leg threaded to their bottom.

4. The foundation pit support device for deep foundation pit construction according to claim 1, characterized in that: The bottom left and right ends of the fixed frame are respectively connected to a support frame by a bolt thread, and a second support leg is fixedly connected to the bottom of each support frame.

5. The foundation pit support device for deep foundation pit construction according to claim 4, characterized in that: Each of the second support legs has several mounting holes on its base.

6. The foundation pit support device for deep foundation pit construction according to claim 1, characterized in that: Both the first side frame and the second side frame have a pull groove on their front and rear sides, and the inside of the pull groove is also provided with anti-slip texture.

7. The foundation pit support device for deep foundation pit construction according to claim 1, characterized in that: Two slide rails are fixedly installed on the inner wall of the fixed frame, which are slidably connected to the first movable frame and the second movable frame, respectively.

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