Anti-sinking concrete pipe pile
Patent Information
- Application Number
- CN202522059841.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-25
- Publication Date
- 2026-10-09
- Estimated Expiration
- 2035-09-25
AI Technical Summary
[0004]本实用新型的目的在于克服现有技术的不足，适应现实需要，提供一种防下沉混凝土管桩，以解决当前传统桩体表面光滑，与土体咬合作用弱、摩擦力有限，易在土体中滑动，影响承载及支撑效果的技术问题
1、本实用新型通过转动转动杆，能够带动转动盘转动，进而在限位杆与弧形限位槽的配合以及滑动杆在转动盘滑槽内的滑动作用下，推动滑动架向外移动，弹性底座失去管桩本体内壁的约束区域限位而回弹，带动金属杆以及尖刺扎入附近的土地内部，进一步增加了管桩本体与土地之间的连接牢固程度，从多方面保障管桩本体更加稳固，有效防止管桩本体出现下沉等情况，提高了管桩本体在复杂地质条件下的承载能力，确保其能为建筑提供可靠的基础支撑。解决传统桩体表面光滑，与土体咬合作用弱、摩擦力有限，易在土体中滑动，影响承载及支撑效果问题。
Smart Images
Figure CN224833678U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of concrete pipe pile technology, and more specifically, to a concrete pipe pile for preventing sinking. Background Technology
[0002] In the field of construction engineering, concrete pipe piles are widely used, primarily to provide stable foundation support for buildings. Traditional concrete pipe piles, once driven into the ground, often rely solely on the friction between the pile structure and the soil, as well as the bearing capacity of the pile tip, to maintain stability. However, with increasingly complex construction environments, such as in areas with soft soil or prone to ground shifts, conventional pipe pile structures are susceptible to problems like pile sinking, which can severely impact the stability and safety of building structures.
[0003] Traditional piles are often designed and manufactured with relatively smooth surfaces. The interlocking effect between the pile and the soil largely depends on the interaction of their microstructures and frictional forces. However, due to the smooth surface of traditional piles, the frictional force generated when in contact with the soil is very limited, making it difficult to form a tight and effective connection. When subjected to loads transmitted from the superstructure, the pile is prone to relative sliding in the soil, failing to be stably anchored, thus affecting its bearing capacity and its support effect on the superstructure. Therefore, we propose a type of anti-sinking concrete pipe pile. Utility Model Content
[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology, adapt to the needs of reality, and provide a concrete pipe pile that prevents sinking, so as to solve the technical problems of the current traditional pile surface being smooth, having weak interlocking with the soil, limited friction, and being easy to slide in the soil, thus affecting the bearing and support effect.
[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a concrete pipe pile for preventing sinking, comprising a pipe pile body, at least one set of tilting frames, an adjustment mechanism, and an auxiliary mechanism. A conical head is fixedly installed at the bottom of the pipe pile body. The tilting frame is hinged to the periphery of the pipe pile body. The tilting frame is tubular in structure, with a circular radial cross-section, and the inner diameter of the circular ring gradually increases from bottom to top along the axial direction. The adjustment mechanism includes a sliding frame. The sliding frame is slidably assembled with a sliding groove opened on the inner wall of the tilting frame through a wedge-shaped slider provided on its outer side. The sliding frame is tubular in structure, with a circular radial cross-section, and the inner diameter of the circular ring gradually increases from bottom to top along the axial direction. The auxiliary mechanism includes an elastic base, a metal rod, and spikes. The elastic base is fixedly installed on the inner side wall of the sliding frame. A metal rod is fixedly installed on the outer side of the elastic base. Spikes are fixedly installed on the periphery of the metal rod. When the sliding frame moves outward and leaves the constraint area of the outer wall of the pipe pile body on the elastic base, the elastic base is in a free state.
[0006] Preferably, the adjusting mechanism further includes a fixing frame, which is fixedly installed inside the pipe pile body. A rotating disk is rotatably installed inside the fixing frame, and a sliding rod is slidably installed inside the fixing frame. The sliding frame is rotatably installed on the outside of the sliding rod, and a limit rod is fixedly installed at the end of the sliding rod away from the sliding frame. An arc-shaped limit groove is opened at the position corresponding to the limit rod on the rotating disk, and the limit rod is slidably installed inside the arc-shaped limit groove. A rotating rod is fixedly installed inside the rotating disk.
[0007] Preferably, the elastic base is in a retracted state under normal conditions due to the constraint of the outer wall of the pipe pile body.
[0008] Preferably, the flipping frame flips open around its hinge point, and both the flipping frame and the sliding frame are in the open state.
[0009] Preferably, in the open state, the conical structure of the flipping frame and the sliding frame has the outwardly protruding outer arc surface facing the top and the inwardly concave inner arc surface facing the bottom.
[0010] Preferably, the wedge-shaped slider has a structural surface that is inclined relative to the extension direction of the sliding groove.
[0011] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model, by rotating the rotating rod, drives the rotating disk to rotate. Then, with the cooperation of the limiting rod and the arc-shaped limiting groove, and the sliding action of the sliding rod within the rotating disk's groove, the sliding frame moves outward. The elastic base, no longer constrained by the inner wall of the pipe pile, rebounds, causing the metal rod and spikes to penetrate into the nearby soil. This further increases the strength of the connection between the pipe pile and the soil, ensuring the pipe pile is more stable from multiple aspects, effectively preventing subsidence, and improving the bearing capacity of the pipe pile under complex geological conditions, ensuring it provides reliable foundation support for buildings. It solves the problem of traditional piles having smooth surfaces, weak interlocking with the soil, limited friction, and easy sliding in the soil, affecting bearing capacity and support effectiveness.
[0012] 2. This utility model also features a specific conical structure for both the flipping frame and the sliding frame. The flipping frame covers the outside of the pipe pile body, and its shape is a conical shape with the bottom fitting against the outside of the pipe pile body and the top diameter being larger than the bottom diameter. During the process of driving the pipe pile body into the ground, it can also participate in the soil breaking process. The combination of the two greatly improves the efficiency and effect of soil breaking, allowing the pipe pile to be driven into the ground more smoothly, reducing construction obstacles, and shortening construction time. When opened, its outer arc surface is more convenient to expand inside the soil. When the pipe pile body faces adverse situations such as sinking, its inner arc surface can hold the soil, forming an effective blocking mechanism. Through the structural characteristics, the sinking of the pipe pile body is fundamentally prevented, greatly improving the stability of the pipe pile during use and ensuring the safety of the building foundation. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the external structure of this utility model; Figure 2 This is a cross-sectional structural diagram of the present invention; Figure 3 This utility model Figure 2 Enlarged schematic diagram of the structure at point A in the middle; Figure 4 This is a schematic diagram of the top structure of the adjustment mechanism of this utility model; Figure 5 This is a schematic diagram of the bottom cross-sectional structure of the adjustment mechanism of this utility model; Figure 6 This is a schematic diagram of the sliding frame and related structures of this utility model; Figure 7 This utility model Figure 6 Enlarged schematic diagram of the structure at point B; Figure 8 This is an exploded view of the sliding frame and related structures of this utility model; Figure 9 This is a schematic diagram of one usage state of the present invention.
[0014] The following are the labels in the diagram: 1. Pipe pile body; 11. Conical head; 2. Adjustment mechanism; 21. Fixing frame; 22. Rotating disk; 221. Arc-shaped limiting groove; 23. Sliding rod; 231. Limiting rod; 24. Sliding frame; 241. Wedge-shaped slider; 25. Rotating rod; 3. Auxiliary mechanism; 31. Elastic base; 32. Metal rod; 33. Spike; 4. Tilting frame; 41. Sliding groove. Detailed Implementation
[0015] Example: Figures 1 to 9 As shown, this utility model relates to an anti-sinking concrete pipe pile, including a pipe pile body 1, at least one set of tilting frames 4, an adjusting mechanism 2, and an auxiliary mechanism 3. A conical head 11 is fixedly installed at the bottom of the pipe pile body 1. The tilting frame 4 is hinged to the periphery of the pipe pile body 1. The tilting frame 4 tilts and opens around its hinge point. Both the tilting frame 4 and the sliding frame 24 are in the open state. The tilting frame 4 is a tubular body with a circular annular radial section, and the inner diameter of the annular ring gradually increases from bottom to top along the axial direction. The adjusting mechanism 2 includes a sliding frame 24. The moving frame 24 is slidably assembled with the sliding groove 41 opened on the inner wall of the flipping frame 4 via a wedge-shaped slider 241 provided on its outer side. The wedge-shaped slider 241 has a structural surface that is inclined relative to the extension direction of the sliding groove 41. When the flipping frame 4 and the sliding frame 24 are in the open state, the outwardly convex outer arc surface faces the top, and the inwardly concave inner arc surface faces the bottom. The sliding frame 24 is constructed as a tubular body with a circular annular radial section, and the inner diameter of the annular ring gradually increases from the bottom to the top along the axial direction. The auxiliary mechanism 3 includes an elastic base 3. 1. A metal rod 32 and a spike 33 are fixedly installed on the inner wall of the sliding frame 24. A metal rod 32 is fixedly installed on the outside of the elastic base 31, and spikes 33 are fixedly installed around the metal rod 32. When the sliding frame 24 moves outward and leaves the constraint area of the outer wall of the pipe pile body 1 on the elastic base 31, the elastic base 31 is in a free state. By rotating the rotating rod 25, the rotating disk 22 can be driven to rotate. Then, under the cooperation of the limiting rod 231 and the arc-shaped limiting groove 221 and the sliding action of the sliding rod 23 in the sliding groove of the rotating disk 22, the sliding frame 24 is pushed outward. The elastic base 31 loses the constraint area of the inner wall of the pipe pile body 1 and rebounds, causing the metal rod 32 and the spikes 33 to penetrate into the nearby soil. This further increases the firmness of the connection between the pipe pile body 1 and the soil, ensuring that the pipe pile body 1 is more stable from multiple aspects, effectively preventing the pipe pile body 1 from sinking, improving the bearing capacity of the pipe pile body 1 under complex geological conditions, and ensuring that it can provide reliable foundation support for the building. This solves the problem that traditional piles have smooth surfaces, weak interlocking with the soil, limited friction, and are prone to sliding in the soil, thus affecting their bearing capacity and support performance.
[0016] Furthermore, such as Figures 4 to 6As shown, the adjustment mechanism 2 also includes a fixed frame 21, which is fixedly installed inside the pipe pile body 1. A rotating disk 22 is rotatably installed inside the fixed frame 21, and a sliding rod 23 is slidably installed inside the fixed frame 21. A sliding frame 24 is rotatably installed on the outside of the sliding rod 23. A limit rod 231 is fixedly installed at the end of the sliding rod 23 away from the sliding frame 24. An arc-shaped limit groove 221 is opened at the position corresponding to the limit rod 231 on the rotating disk 22. The limit rod 231 is slidably installed inside the arc-shaped limit groove 221. A rotating rod 25 is fixedly installed inside the rotating disk 22. The effective control of the state of the flipping frame 4 and the sliding frame 24 changes them from the initial covered state to the open state, increasing the contact area with the soil and enhancing the overall stability of the pipe pile in the soil.
[0017] Working principle: This embodiment provides a concrete pipe pile for preventing sinking. When in use, the pipe pile body 1 is driven into the ground through the conical head 11. When driven into the ground, the conical head 11 can break the soil. The rotating frame 4 covers the outside of the pipe pile body 1. The rotating frame 4 is a cone-shaped structure with the bottom attached to the outside of the pipe pile body 1 and the top diameter larger than the bottom diameter. This allows the rotating frame 4 to break the soil of the pipe pile body 1 when it is driven into the ground.
[0018] After driving to the appropriate depth, use a tool to rotate the rotating rod 25. The rotation of the rotating rod 25 drives the rotating disk 22 to rotate, which in turn causes the limiting rod 231 to slide under the limit of the arc-shaped limiting groove 221. This causes the sliding rod 23 to slide inside the corresponding groove of the rotating disk 22, thereby pushing the sliding frame 24 to move outward. The sliding frame 24 is slidably installed inside the corresponding sliding groove 41 of the flipping frame 4 through the wedge-shaped slider 241. The flipping frame 4 is hinged to the periphery of the pipe pile body 1, so the sliding frame 24 can only move inside the flipping frame 4, thereby pushing the flipping frame 4 to flip outside the pipe pile body 1. During the flipping process of the flipping frame 4, the wedge-shaped slider 241 slides in the sliding groove 41, thereby causing the sliding frame 24 to move out from the inside of the flipping frame 4, increasing the force-bearing area.
[0019] Furthermore, when the sliding frame 24 detaches from the inner wall of the pipe pile body 1, the elastic base 31 rebounds after losing the limit of the inner wall of the pipe pile body 1, causing the metal rod 32 to also rebound, and then the spike 33 is used to penetrate into the nearby soil, making the pipe pile body 1 more stable.
[0020] Furthermore, both the flipping frame 4 and the sliding frame 24 are cone-shaped with their bottoms attached to the outside of the pipe pile body 1 and their top diameter larger than their bottom diameter. When they are opened, the outer arc surface is more convenient to expand inside the soil. If the pipe pile body 1 is to be sunk or otherwise operated, the inner arc surface of the flipping frame 4 and the sliding frame 24 will hold the soil, thereby preventing the pipe pile body 1 from sinking.
[0021] The embodiments disclosed herein are preferred embodiments, but are not limited thereto. Those skilled in the art can readily grasp the spirit of this utility model based on the above embodiments and make different extensions and variations. However, as long as they do not depart from the spirit of this utility model, they are all within the protection scope of this utility model.
Claims
1. A type of anti-sinking concrete pipe pile, characterized in that, include, Pipe pile body (1), with a conical head (11) fixedly installed at the bottom of the pipe pile body (1); At least one set of flipping frames (4) are hinged to the periphery of the pipe pile body (1). The flipping frame (4) is constructed as a tubular body with a radial cross section of a circular ring, and the inner diameter of the circular ring gradually increases from bottom to top along the axial direction. Adjustment mechanism (2), the adjustment mechanism (2) includes a sliding frame (24), the sliding frame (24) is slidably assembled with the sliding groove (41) opened on the inner wall of the flipping frame (4) through the wedge-shaped slider (241) provided on its outer side, the sliding frame (24) is constructed as a tubular body, its radial cross section is annular, and the inner diameter of the annular ring gradually increases from bottom to top along the axial direction; The auxiliary mechanism (3) includes an elastic base (31), a metal rod (32) and spikes (33). The elastic base (31) is fixedly installed on the inner wall of the sliding frame (24). The metal rod (32) is fixedly installed on the outside of the elastic base (31). Spikes (33) are fixedly installed on the periphery of the metal rod (32). When the sliding frame (24) moves outward and leaves the constraint area of the outer wall of the pipe pile body (1) on the elastic base (31), the elastic base (31) is in a free state.
2. The anti-sinking concrete pipe pile according to claim 1, characterized in that, The adjustment mechanism (2) also includes a fixed frame (21), which is fixedly installed inside the pipe pile body (1). A rotating disk (22) is rotatably installed inside the fixed frame (21). A sliding rod (23) is slidably installed inside the fixed frame (21). A sliding frame (24) is rotatably installed on the outside of the sliding rod (23). A limit rod (231) is fixedly installed at the end of the sliding rod (23) away from the sliding frame (24). An arc-shaped limit groove (221) is opened at the position corresponding to the rotating disk (22) and the limit rod (231). The limit rod (231) is slidably installed inside the arc-shaped limit groove (221). A rotating rod (25) is fixedly installed inside the rotating disk (22).
3. The anti-sinking concrete pipe pile according to claim 2, characterized in that, Under normal conditions, the elastic base (31) is in a retracted state due to the constraint of the outer wall of the pipe pile body (1).
4. The anti-sinking concrete pipe pile according to claim 2, characterized in that, The flipping frame (4) flips open around its hinge point, and both the flipping frame (4) and the sliding frame (24) are in the open state.
5. A type of anti-sinking concrete pipe pile according to claim 4, characterized in that, When the flipping frame (4) and the sliding frame (24) are in the open state, the outwardly protruding outer arc surface faces the top, and the inwardly concave inner arc surface faces the bottom.
6. A type of anti-sinking concrete pipe pile according to claim 2, characterized in that, The wedge-shaped slider (241) has a structural surface that is inclined relative to the extension direction of the sliding groove (41).