Foundation pit supporting pile for building energy saving project
By designing a rapid splicing structure and support frame for protective pile one and protective pile two, the problems of long construction cycle and low reuse rate of traditional foundation pit support piles were solved, achieving rapid splicing and safe and stable foundation pit support effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGDONG ZHENGDA CONSTR CO LTD
- Filing Date
- 2025-08-06
- Publication Date
- 2026-07-14
AI Technical Summary
Traditional foundation pit support piles have long construction cycles, are difficult to dismantle, and have low reuse rates, leading to increased costs.
A foundation pit support pile structure was designed, which includes components such as protective pile one, protective pile two, support column, sliding column, limiting plate, connecting column, and spring. It achieves rapid splicing through a locking and unfolding mechanism, and provides support force to resist soil pressure and water pressure through the support frame.
It enables rapid splicing of foundation pit support piles, improves the reuse rate, shortens the construction cycle, reduces costs, and enhances the safety and stability of foundation pit excavation and subsequent construction.
Smart Images

Figure CN224495148U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of building engineering technology, and in particular to a foundation pit support pile for building energy-saving projects. Background Technology
[0002] An excavation pit is a temporary pit excavated on the ground for the construction of building foundations and basements. The pile structure set around the perimeter of the excavation pit is the core component of the excavation pit support system, used to reinforce the sides of the excavation pit. In addition to meeting the support function, in order to reduce construction energy consumption and carbon emissions and meet the low-carbon requirements of building energy conservation projects, it is necessary to use a type of excavation pit support pile for building energy conservation projects.
[0003] A type of foundation pit support pile for building energy conservation projects is used to stabilize foundation pits, reduce earthwork volume, and optimize construction processes, indirectly reducing energy consumption and improving building energy efficiency. In existing technologies, traditional support piles are usually concrete-cast columns or monolithic piles, which have long construction cycles, are difficult to dismantle, and are not easy to recycle, resulting in low reuse rates and increased costs. Utility Model Content
[0004] To overcome the above shortcomings, this utility model provides a foundation pit support pile for building energy conservation projects, which aims to improve the problems of traditional support piles having a long construction cycle, being difficult to dismantle and not easy to recycle, resulting in low reuse rate and increased cost.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a foundation pit support pile for building energy conservation engineering, comprising a first support pile, a second support pile attached to the outer wall of the first support pile, a support column slidably connected inside the first support pile, a sliding column fixedly connected inside the support column, a limiting plate slidably connected to the outer wall of the sliding column, the lower surface of the limiting plate slidably connected to the inner wall of the first support pile, one end of a connecting column fixedly connected inside the limiting plate, a locking block fixedly connected to the other end of the connecting column, the outer walls of both the connecting column and the locking block slidably connected inside the first support pile, the outer wall of the locking block locking into the inside of the second support pile, a limiting frame locking into the inside of the locking block, the outer wall of the limiting frame slidably connected to the inside of the second support pile, a spring sleeved on the outer wall of the connecting column, one end of the spring fixedly connected to the inside of the first support pile, the other end of the spring fixedly connected to the outer wall of the locking block, and a limiting component provided on the outer wall of the first support pile.
[0006] Preferably, the limiting component includes a connecting block, one outer wall of which is fixedly connected to the outer wall of the first protective pile, the other outer wall of which is slidably connected to the interior of the second protective pile, a rotating block is rotatably connected to the outer wall of the first protective pile, a limiting block is slidably connected to the outer wall of the rotating block, and the outer wall of the limiting block is fixedly connected to the outer wall of the second protective pile.
[0007] Preferably, a fixing block is fixedly connected to the outer wall of the first protective pile, a rotating column is rotatably connected inside the fixing block, and a support frame is fixedly connected to the outer wall of the rotating column.
[0008] Preferably, one end of the first rotating plate is rotatably connected to the inner wall of the support frame, and the other end of the first rotating plate is fixedly connected to a connecting shaft.
[0009] Preferably, one end of the second rotating plate is rotatably connected to the outer wall of the first connecting shaft, the second rotating plate is fixedly connected to the inside of the second rotating plate, and the other end of the second rotating plate is rotatably connected to the inner wall of the support frame.
[0010] Preferably, one end of the third rotating plate is rotatably connected to the outer wall of the second connecting shaft, and the other end of the third rotating plate is rotatably connected to the outer wall of the first connecting shaft.
[0011] Preferably, a positioning post is fixedly connected to the lower surface of the support frame.
[0012] Preferably, one end of a fixed rod is rotatably connected to the outer wall of the support frame, a limit post is fixedly connected to the outer wall of the support frame, and the other end of the fixed rod is engaged with the outer wall of the fixed rod.
[0013] This utility model has the following beneficial effects:
[0014] 1. In this utility model, through the cooperation between the support column, sliding column, limiting plate, connecting column, spring, and locking block, the locking block and the limiting frame can be engaged, allowing the first and second protective piles to be quickly spliced together, thereby improving the flexibility of the support piles during use, shortening the construction cycle, and achieving the effects of increasing the reuse rate and reducing costs.
[0015] 2. In this utility model, through the mutual cooperation between the support frame, the first rotating plate, the first connecting shaft, the second rotating plate, the second connecting shaft, the third rotating plate, the positioning column, the fixing rod, and the limiting column, the two support frames can be unfolded and provide support force to the support piles, so that the support piles can better resist the soil pressure, water pressure and surrounding loads of the foundation pit sidewall, avoid slope collapse and soil displacement, and achieve the effect of ensuring the safety and stability of foundation pit excavation and subsequent construction. Attached Figure Description
[0016] Figure 1 This is a perspective view of a foundation pit support pile for building energy conservation engineering proposed in this utility model;
[0017] Figure 2 This utility model provides a cross-sectional view of the internal structure of a foundation pit support pile for building energy conservation projects.
[0018] Figure 3 This is a partial structural diagram of a limiting block for a foundation pit support pile used in building energy conservation engineering, as proposed in this utility model.
[0019] Figure 4 This is a partial structural diagram of the first rotating plate of a foundation pit support pile for building energy conservation engineering proposed in this utility model.
[0020] Legend:
[0021] 1. Protective pile one; 2. Protective pile two; 3. Support column; 4. Sliding column; 5. Limiting plate; 6. Connecting column; 7. Spring; 8. Locking block; 9. Connecting block; 10. Rotating block; 11. Limiting block; 12. Fixing block; 13. Rotating column; 14. Support frame; 15. First rotating plate; 16. Connecting shaft one; 17. Second rotating plate; 18. Connecting shaft two; 19. Third rotating plate; 20. Positioning column; 21. Fixing rod; 22. Limiting column; 23. Limiting frame. Detailed Implementation
[0022] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0023] Reference Figure 1 and Figure 2 This utility model provides an embodiment of a foundation pit support pile for building energy conservation engineering, including a first support pile 1, a second support pile 2 attached to the outer wall of the first support pile 1, a support column 3 slidably connected inside the first support pile 1, a sliding column 4 fixedly connected inside the support column 3, a limit plate 5 slidably connected to the outer wall of the sliding column 4, the lower surface of the limit plate 5 slidably connected to the inner wall of the first support pile 1, one end of a connecting column 6 fixedly connected inside the limit plate 5, a locking block 8 fixedly connected to the other end of the connecting column 6, the outer walls of both the connecting column 6 and the locking block 8 slidably connected to the inside of the first support pile 1, the outer wall of the locking block 8 locking into the inside of the second support pile 2, a limit frame 23 locking into the inside of the locking block 8, the outer wall of the limit frame 23 slidably connected to the inside of the second support pile 2, a spring 7 sleeved on the outer wall of the connecting column 6, one end of the spring 7 fixedly connected to the inside of the first support pile 1, the other end of the spring 7 fixedly connected to the outer wall of the locking block 8, and a limit component provided on the outer wall of the first support pile 1.
[0024] Specifically, guard pile 1 and guard pile 2 are identical objects. Guard pile 1 provides support and limits the offset of support column 3. Support column 3 fixes sliding column 4. Limiting plate 5 provides support and limits the offset of sliding column 4, allowing sliding column 4 to move only within the inclined groove inside limiting plate 5. Guard pile 1 provides support and limits the offset of limiting plate 5, allowing limiting plate 5 to move only linearly inside guard pile 1. Limiting plate 5 fixes connecting column 6, and connecting column 6 fixes locking block 8. Pressing support column 3 causes sliding column 4 to slide on the inner wall of limiting plate 5, moving limiting plate 5. The movement of limiting plate 5 causes connecting column 6 to move, moving locking block 8 into guard pile 1. Simultaneously, the movement of locking block 8 engages spring 7. After the support column 3 is released by compression, the spring 7 will cause the locking block 8 to move and reset due to the rebound force of the compression. The movement of the locking block 8 will drive the connecting column 6 to move, and the movement of the connecting column 6 will cause the limiting plate 5 to move, which will further reset the support column 3. The second protective pile 2 has a supporting and limiting offset function for the limiting frame 23, so that the limiting frame 23 can move linearly inside the second protective pile 2. The outer wall of the limiting frame 23 is provided with elastic plates. The limiting frame 23 can reset after the tension is released by the elastic plates. When the locking block 8 moves inside the second protective pile 2, the limiting frame 23 is released and locked inside the locking block 8, which can limit the locking block 8 and fix the locking block 8 inside the second protective pile 2, thereby achieving the effect of rapid splicing of the first protective pile 1 and the second protective pile 2.
[0025] Reference Figure 1 and Figure 3 The limiting component includes a connecting block 9. One side of the outer wall of the connecting block 9 is fixedly connected to the outer wall of the first guard pile 1, and the other side of the outer wall of the connecting block 9 is slidably connected to the inside of the second guard pile 2. The outer wall of the first guard pile 1 is rotatably connected to a rotating block 10, and the outer wall of the rotating block 10 is slidably connected to a limiting block 11. The outer wall of the limiting block 11 is fixedly connected to the outer wall of the second guard pile 2.
[0026] Specifically, the connecting block 9 is located at the bottom of the first guard pile 1. By locking the connecting block 9 inside the second guard pile 2, the splicing of the bottoms of the first guard pile 1 and the second guard pile 2 can be guaranteed, and the deviation can be avoided. The first guard pile 1 and the second guard pile 2 support the rotating block 10. The rotating block 10 is eccentric. The first guard pile 1 and the second guard pile 2 fix the limiting block 11. By rotating the rotating block 10 on the outer wall of the first guard pile 1, the rotating block 10 moves into the limiting block 11 on the outer wall of the second guard pile 2. Through the damping effect, the rotating block 10 is stabilized on the inner wall of the limiting block 11, which can better improve the stability of the splicing of the first guard pile 1 and the second guard pile 2.
[0027] Reference Figure 1 and Figure 4A fixing block 12 is fixedly connected to the outer wall of the retaining pile 1. A rotating column 13 is rotatably connected inside the fixing block 12. A support frame 14 is fixedly connected to the outer wall of the rotating column 13. One end of a first rotating plate 15 is rotatably connected to the inner wall of the support frame 14. A connecting shaft 16 is fixedly connected to the other end of the first rotating plate 15. One end of a second rotating plate 17 is rotatably connected to the outer wall of the connecting shaft 16. A connecting shaft 28 is fixedly connected inside the second rotating plate 17. The other end of the second rotating plate 17 is rotatably connected to the inner wall of the support frame 14. One end of a third rotating plate 19 is rotatably connected to the outer wall of the connecting shaft 28. The other end of the third rotating plate 19 is rotatably connected to the outer wall of the connecting shaft 16. A positioning column 20 is fixedly connected to the lower surface of the support frame 14. One end of a fixing rod 21 is rotatably connected to the outer wall of the support frame 14. A limit column 22 is fixedly connected to the outer wall of the support frame 14. The other end of the fixing rod 21 is engaged with the outer wall of the fixing rod 21.
[0028] Specifically, guard pile 1 and guard pile 2 fix the fixing block 12. There are two support frames 14, upper and lower. The upper support frame 14 fixes the rotating column 13, and the fixing block 12 supports the rotating column 13. By rotating the rotating column 13 inside the fixing block 12, the angle of the support frame 14 can be adjusted. There are two sets of rotating plates: one set (first rotating plate 15 and second rotating plate 17) rotates on the inner wall of the upper support frame 14, and the other set rotates on the outer wall of the lower support frame 14, in opposite positions. There are two third sets... The rotating plate 19 has two sides. The left side third rotating plate 19 connects the upper second rotating plate 17 and the lower first rotating plate 15 and second rotating plate 17 via connecting shaft 16 and connecting shaft 2 18. The right side third rotating plate 19 connects the upper first rotating plate 15 and second rotating plate 17 and the lower second rotating plate 17. The connection of the two third rotating plates 19 can form a staggered rhombus. Therefore, when the lower support frame 14 is pulled, the rotation of the upper first rotating plate 15 and second rotating plate 17 drives the lower support frame 14 through the third rotating plate 19. The rotation of the first rotating plate 15 and the second rotating plate 17 achieves the unfolding effect. The support frame 14 is fixed in the soil by the positioning column 20, maintaining its stability. The lower support frame 14 supports the fixing rod 21, and there are two fixing rods 21, which are staggered. The fixing rods 21 are telescopic for easy storage. The upper support frame 14 fixes the limiting column 22, which limits the displacement of the fixing rod 21. The upper outer wall of the fixing rod 21 has a groove that matches the outer wall of the limiting column 22. After the fixed rod 21 rotates to the outer wall of the limiting column 22, a certain thrust is applied to the fixed rod 21 to make the fixed rod 21 engage with the outer wall of the limiting column 22, thereby limiting the offset of the fixed rod 21 and ensuring the stability of the unfolding effect of the support frame 14. Through the unfolding of the support frame 14 and the fixing effect of the positioning column 20, the support pile can be supported, improving the support pile's ability to resist the soil pressure, water pressure and surrounding loads of the pit sidewall, preventing slope collapse and soil displacement, and ensuring the safety and stability of the pit excavation and subsequent construction.
[0029] Working principle: When the support pile is needed, press the support column 3. When the support column 3 moves downward, it will cause the sliding column 4 to slide on the inner wall of the limiting plate 5, and drive the limiting plate 5 to move. The movement of the limiting plate 5 will drive the connecting column 6 to move the locking block 8 into the inside of the first support pile 1, and the locking block 8 will squeeze the spring 7. Then, the first support pile 1 and the second support pile 2 will be aligned, and the connecting block 9 will be locked inside the second support pile 2. At this time, pull the limiting bracket 23 and release the support column 3. After the support column 3 is released, the spring 7 will rebound due to the rebound force. The connecting column 6 moves the limiting plate 5. The movement of the limiting plate 5 will move the sliding column 4 and restore the supporting column 3 to its original position. At the same time, the movement of the connecting column 6 will also cause the locking block 8 to slide into the interior of the second protective pile 2. At this time, the limiting frame 23 is released. Since the limiting frame 23 is fixed with an elastic piece, one end of the elastic piece is fixed inside the second protective pile 2. Therefore, after the limiting frame 23 is released, the limiting frame 23 will open inside the locking block 8, limiting the locking block 8 and stabilizing the locking block 8 inside the second protective pile 2, thus achieving the effect of rapid splicing.
[0030] After the first and second guard piles are spliced together, pull the lower support frame 14 to cause the first rotating plate 15 and the second rotating plate 17 to rotate and extend through the connecting shaft 16. When the first and second rotating plates 15 and 17 rotate, the second rotating plate 17 will drive the third rotating plate 19 to rotate and unfold through the connecting shaft 28, thereby unfolding the two support frames 14. After unfolding, rotate the fixing rod 21 so that the other end of the fixing rod 21 is engaged with the outer wall of the limiting post 22 fixed on the outer wall of the upper support frame 14, thereby limiting the offset of the two support frames 14. Then fix the positioning post 20. In the soil, the first and second retaining piles 1 and 2 are supported. At the same time, the rotating column 13 is fixed in the soil by cooperating with the positioning column 20 through the rotation of the fixed block 12. This allows the first and second retaining piles 1 and 2 to adapt to the slope of the foundation pit at various angles. This device can not only make the use of the retaining piles more flexible by quickly splicing the retaining piles, and achieve the effect of shortening the construction cycle and reducing costs, but also provide support for the retaining piles, so that the retaining piles can better resist the soil pressure, water pressure and surrounding loads of the foundation pit sidewall, and achieve the effect of ensuring the safety and stability of foundation pit excavation and subsequent construction.
[0031] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A foundation pit support pile for building energy conservation projects, comprising a support pile one (1), characterized in that: The outer wall of the first protective pile (1) is fitted with the second protective pile (2). The inner wall of the first protective pile (1) is slidably connected to a support column (3). The inner wall of the support column (3) is fixedly connected to a sliding column (4). The outer wall of the sliding column (4) is slidably connected to a limiting plate (5). The lower surface of the limiting plate (5) is slidably connected to the inner wall of the first protective pile (1). The inner wall of the limiting plate (5) is fixedly connected to one end of a connecting column (6). The other end of the connecting column (6) is fixedly connected to a locking block (8). The connecting column (6) and the locking block (8) are... The outer walls of the first protective pile (1) are slidably connected to the inside of the second protective pile (2). The outer wall of the locking block (8) is locked to the inside of the second protective pile (2). The inside of the locking block (8) is locked to the limiting frame (23). The outer wall of the limiting frame (23) is slidably connected to the inside of the second protective pile (2). The outer wall of the connecting column (6) is fitted with a spring (7). One end of the spring (7) is fixedly connected to the inside of the first protective pile (1). The other end of the spring (7) is fixedly connected to the outer wall of the locking block (8). The outer wall of the first protective pile (1) is provided with a limiting component.
2. The foundation pit support pile for building energy conservation projects according to claim 1, characterized in that: The limiting component includes a connecting block (9), one side of the outer wall of the connecting block (9) is fixedly connected to the outer wall of the first protective pile (1), the other side of the outer wall of the connecting block (9) is slidably connected to the inside of the second protective pile (2), the outer wall of the first protective pile (1) is rotatably connected to a rotating block (10), the outer wall of the rotating block (10) is slidably connected to a limiting block (11), and the outer wall of the limiting block (11) is fixedly connected to the outer wall of the second protective pile (2).
3. The foundation pit support pile for building energy conservation projects according to claim 1, characterized in that: A fixing block (12) is fixedly connected to the outer wall of the first protective pile (1), and a rotating column (13) is rotatably connected inside the fixing block (12). A support frame (14) is fixedly connected to the outer wall of the rotating column (13).
4. A foundation pit support pile for building energy conservation projects according to claim 3, characterized in that: The inner wall of the support frame (14) is rotatably connected to one end of the first rotating plate (15), and the other end of the first rotating plate (15) is fixedly connected to the connecting shaft (16).
5. A foundation pit support pile for building energy conservation projects according to claim 4, characterized in that: The outer wall of the first connecting shaft (16) is rotatably connected to one end of the second rotating plate (17), the second rotating plate (17) is fixedly connected to the inside of the second rotating plate (17), and the other end of the second rotating plate (17) is rotatably connected to the inner wall of the support frame (14).
6. A foundation pit support pile for building energy conservation projects according to claim 5, characterized in that: One end of the third rotating plate (19) is rotatably connected to the outer wall of the second connecting shaft (18), and the other end of the third rotating plate (19) is rotatably connected to the outer wall of the first connecting shaft (16).
7. A foundation pit support pile for building energy conservation projects according to claim 4, characterized in that: The lower surface of the support frame (14) is fixedly connected to a positioning column (20).
8. A foundation pit support pile for building energy conservation projects according to claim 4, characterized in that: The outer wall of the support frame (14) is rotatably connected to one end of a fixed rod (21), and the outer wall of the support frame (14) is fixedly connected to a limit post (22). The other end of the fixed rod (21) is snapped into the outer wall of the fixed rod (21).