A positioning device for a stiff composite pile
By using a positioning device consisting of a base, guide ring, positioning ring, and guide cylinder in the construction of rigid composite piles, the problem of pile eccentricity or tilting was solved, achieving precise positioning and verticality control, and improving construction efficiency and pile quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HEBEI CONSTR GRP
- Filing Date
- 2025-06-17
- Publication Date
- 2026-07-21
AI Technical Summary
In the construction of rigid composite piles, it is difficult to accurately determine the position of the pipe piles and they are prone to eccentricity or tilting, resulting in substandard pile quality.
A positioning device is adopted, which includes a base, a guide ring, a positioning ring, a guide cylinder, and a leveling device. The positioning ring abuts against the cement mixing pile. Combined with the concentric design of the guide ring and the guide cylinder, the concentricity of the pipe pile and the cement mixing pile is ensured. The leveling device is used to calibrate the levelness of the base to ensure the verticality of the pipe pile.
It enables precise positioning and verticality control of pipe piles, simplifies the construction process, reduces labor costs, and improves construction efficiency and pile quality.
Smart Images

Figure CN224531668U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of building construction equipment technology, specifically a positioning device for rigid composite piles. Background Technology
[0002] In the construction of reinforced composite pile projects, pipe piles are typically driven into the concrete mixing piles after the concrete mixing piles have been formed. Because the diameter of the concrete mixing piles is larger than that of the pipe piles, and concentricity is required, traditional construction methods present the following challenges: First, the precise location of the pipe piles is difficult to determine, requiring significant time to find the center point of the concrete mixing piles; second, the buoyancy of the concrete mixing piles during the driving process can easily cause eccentricity or verticality deviations, leading to substandard pile quality. Therefore, a simple and effective dedicated positioning device is urgently needed. Utility Model Content
[0003] The purpose of this invention is to provide a positioning device for rigid composite piles to solve the problem that pipe piles are prone to eccentricity or tilting during the construction of traditional rigid composite piles.
[0004] This utility model is implemented as follows:
[0005] A positioning device for a rigid composite pile, characterized in that it comprises:
[0006] A base, wherein mounting holes are provided on the base;
[0007] A guide ring is fixedly disposed at the bottom of the base, and the inner diameter of the guide ring is equal to the inner diameter of the mounting hole;
[0008] A positioning ring is fixedly disposed at the bottom of the base and sleeved on the outside of the guide ring. The outer wall of the positioning ring is used to abut against the inner wall of the cement mixing pile.
[0009] The guide cylinder is frustum-shaped, with its top inner diameter being larger than its bottom inner diameter. The bottom of the guide cylinder is fixedly connected to the base. The guide cylinder is located above and communicates with the mounting hole, and the bottom inner diameter of the guide cylinder is greater than or equal to the diameter of the mounting hole.
[0010] As a further technical solution, the inner diameter of the bottom of the guide cylinder is equal to the diameter of the mounting hole, and the central axis of the guide cylinder is collinear with the central axis of the mounting hole.
[0011] As a further technical solution, multiple reinforcing ribs are arranged around the outer side of the guide cylinder, one side of the reinforcing ribs is fixedly connected to the outer wall of the guide cylinder, and the bottom is fixedly connected to the base.
[0012] As a further technical solution, the reinforcing rib is a right-angled trapezoid, and its hypotenuse is fixedly connected to the outer wall of the guide cylinder, while the right-angled side is perpendicular to the top surface of the base.
[0013] As a further technical solution, it also includes:
[0014] The horizontal device consists of two vertically arranged devices, both of which are fixedly mounted on the base.
[0015] As a further technical solution, the leveling device includes:
[0016] The tube is made of transparent material and is fixedly mounted on the base. A center mark is marked in the middle of the tube. The tube is filled with liquid, and an air bubble is left between the liquid and the inner wall of the tube. Sealing caps are provided at both ends of the tube.
[0017] As a further technical solution, the tube body is fixedly mounted on the base by a fixing member, the fixing member comprising:
[0018] The fixing straps are of several types, with the middle part of each fixing strap located on the outside of the tube body. Each of the fixing straps has a first fixing hole at both ends, and the base has a second fixing hole that coincides with the first fixing hole.
[0019] A fixing bolt is provided, which passes through the first fixing hole and the second fixing hole in sequence and is locked in place by a nut.
[0020] As a further technical solution, the base is surrounded by multiple positioning posts, the sidewalls of the positioning posts abut against the sidewalls of the base, and the bottom is inserted into the ground.
[0021] The beneficial effects of this utility model are:
[0022] This utility model has a simple structure. The positioning ring determines the positional relationship between the device and the cement mixing pile, thereby ensuring the concentricity of the pipe pile and the cement mixing pile. The guiding device and the guiding ring ensure the position and verticality of the pipe pile when it enters. The leveling device on the base can ensure the horizontality of the base when it is fixed, thus ensuring accuracy.
[0023] Compared to traditional reinforced composite pipe pile construction methods, this invention reduces the time spent finding the center of the pipe pile after cement mixing pile completion and the need to check its verticality during the pile pressing process. Only the base needs to be fixed in the appropriate position using a positioning ring, simplifying the construction process, saving labor costs, directly improving construction efficiency, and indirectly reducing costs. Furthermore, this invention is simple to manufacture; workers can fabricate it on-site, and a single device improves the overall quality of pile foundation construction. Attached Figure Description
[0024] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;
[0025] Figure 2 This is a structural schematic diagram of the utility model in use;
[0026] Figure 3 yes Figure 2 A magnified structural diagram of part A in the middle.
[0027] Explanation of reference numerals in the attached figures
[0028] 1. Base; 2. Mounting hole; 3. Guide tube; 4. Leveling device; 41. Pipe body; 42. Center mark line; 43. Bubble; 44. Sealing cap; 5. Reinforcing rib; 6. Fastener; 61. Fixing strap; 62. Fixing bolt; 7. Positioning column; 8. Pipe pile; 9. Cement mixing pile; 10. Guide ring; 11. Positioning ring. Detailed Implementation
[0029] like Figures 1-3 As shown, this utility model provides a positioning device for a rigid composite pile, which mainly includes a base 1, a guide ring 10, a positioning ring 11, a guide cylinder 3, and a horizontal device 4.
[0030] The base 1 is a square steel plate with a thickness of approximately 6mm. The dimensions of the base 1 are determined based on site conditions; generally, a steel plate 1m long and 1m wide is sufficient. Multiple positioning posts 7 are arranged around the base 1. Specifically, one positioning post 7 is located on each side of each corner of the base 1. The sidewalls of the positioning posts 7 abut against the sidewalls of the base 1, and their bottoms are inserted into the ground to provide auxiliary fixation for the base 1, further preventing displacement during construction. An installation hole 2 is located in the center of the base 1. The installation hole 2 can be cut on-site. The inner surface of the cut installation hole 2 needs to be ground smooth to ensure it is perpendicular to the top surface of the base 1, guaranteeing effective positioning. The diameter of the installation hole 2 is slightly larger than the diameter of the pipe pile 8, and the difference between the diameters of the installation hole 2 and the pipe pile 8 is within 1cm. This facilitates the insertion of the pipe pile 8 into the installation hole 2 while ensuring the concentricity of the pipe pile 8 and the cement mixing pile 9.
[0031] A guide ring 10 is fixedly installed at the bottom of the base 1. The guide ring 10 is concentrically positioned with the mounting hole 2, and the inner diameter of the guide ring 10 is equal to the inner diameter of the mounting hole 2. The guide ring 10 helps to limit the verticality of the pipe pile 8 during installation, preventing the pipe pile 8 from tilting. A positioning ring 11 is fixedly installed at the bottom of the base 1 and sleeved on the outside of the guide ring 10. A gap is provided between the positioning ring 11 and the guide ring 10, which helps to save materials. The outer wall of the positioning ring 11 is used to abut against the inner wall of the cement mixing pile 9 to determine the position of the positioning device. It cooperates with the guide ring 10 to ensure the concentricity between the pipe pile 8 and the cement mixing pile 9.
[0032] The guide cylinder 3 is a hollow, inverted frustum-shaped steel plate used to guide the pipe pile 8 before it enters the installation hole 2, allowing the pipe pile 8 to smoothly enter the installation hole 2 and the guide ring 10. The guide cylinder 3 has a wall thickness of approximately 3mm, and its top inner diameter is approximately 10cm larger than its bottom inner diameter to facilitate the entry of the pipe pile 8. The bottom of the guide cylinder 3 is firmly welded to the base 1. The guide cylinder 3 is located directly above the installation hole 2 and communicates with it. The inner diameter of the bottom of the guide cylinder 3 is greater than or equal to the diameter of the installation hole 2. Preferably, the inner diameter of the bottom of the guide cylinder 3 is equal to the diameter of the installation hole 2. The central axis of the guide cylinder 3 is collinear with the central axis of the installation hole 2, allowing the installation hole 2, the guide ring 10, and the opening at the bottom of the guide cylinder 3 to jointly limit the pipe pile 8, increasing the length of the limit and further preventing the pipe pile 8 from tilting.
[0033] Two horizontal devices 4 are vertically installed and fixedly mounted on the two adjacent edges of the top of the base 1. Specifically, the horizontal device 4 includes a tube 41 and a sealing cap 44. The tube 41 is made of transparent hard plastic and its two ends are sealed by the sealing cap 44. A center mark line 42 is marked in the middle of the tube 41. The inside is filled with water or other liquid and a little gas is left inside to form an air bubble 43. The levelness of the base 1 is determined by adjusting the center of the air bubble 43 to the center mark line 42.
[0034] The tube body 41 is fixedly mounted on the base 1 by a fastener 6. The fastener 6 includes a fixing strap 61 and a fixing bolt 62. There are several fixing straps 61. Specifically, a fixing strap 61 is provided at both ends of each tube body 41. The fixing strap 61 is a 1-2cm wide iron sheet. The middle part of the fixing strap 61 is wrapped around the outside of the tube body 41. A first fixing hole is opened at both ends. A second fixing hole is opened on the base 1 that coincides with the first fixing hole. The fixing bolt 62 passes through the first fixing hole and the second fixing hole in sequence and is locked by a nut to realize the fixed connection between the tube body 41 and the base 1.
[0035] Multiple reinforcing ribs 5 are evenly arranged around the outer side of the guide cylinder 3. The reinforcing ribs 5 are right-angled trapezoidal steel plates with a thickness of about 6mm. Their hypotenuses are firmly welded to the outer wall of the guide cylinder 3, and their bottoms are fixedly connected to the base 1. The right-angled side is perpendicular to the top surface of the base 1 to enhance the structural stability of the guide cylinder 3. In this embodiment, there are four reinforcing ribs 5, which strengthen the guide cylinder 3 from four directions.
[0036] In use, the positioning ring 11 is inserted into the cement mixing pile 9 to determine the position of the base 1. Simultaneously, the position of the bubble 43 is observed through the leveling device 4, and the base 1 is adjusted to be level (the center of the bubble 43 coincides with the center marking line 42). Positioning columns 7 are then inserted on each of the four sides of the base 1 to fix its position, thus completing the installation of the positioning device. The pipe pile 8 can then be hoisted. When hoisting the pipe pile 8, the lower end of the pipe pile 8 is inserted through the top opening of the guide cylinder 3, guided accurately into the installation hole 2 by the guide cylinder 3, and driven down along the guide ring 10 to ensure the verticality of the pipe pile 8. During construction, the leveling device 4 can monitor the levelness of the base 1 in real time to further ensure the verticality of the pipe pile 8.
[0037] This utility model has the following advantages:
[0038] Precise positioning: Through the abutment design of the positioning ring 11 and the cement mixing pile 9, the installation hole 2 on the base 1, the concentric design of the guide cylinder 3 and the guide ring 10, combined with the bubble 43 calibration function of the horizontal device 4, the center position of the rigid composite pile can be accurately ensured and the verticality error can be controlled within the allowable range, which significantly improves the pile quality.
[0039] Highly efficient construction: This utility model can determine the position of the entire positioning device simply by inserting the positioning ring 11 into the cement mixing pile 9. There is no need to find the center point again after the cement mixing pile 9 is completed, which simplifies the construction process, reduces manpower input, and indirectly improves construction efficiency.
[0040] Simple structure: The main components are made of common materials such as steel plates and plastic pipes, which are easy to source locally. The manufacturing process is simple and can be processed by on-site workers, reducing equipment costs.
[0041] High stability: The guide cylinder 3 is reinforced by welding the reinforcing rib plate 5 to the base 1, and the positioning column 7 is inserted into the ground to fix the base 1. The overall structure is solid and can withstand the external force during construction, ensuring the stability and reliability of the device.
Claims
1. A positioning device for a rigid composite pile, characterized in that, include: A base, wherein mounting holes are provided on the base; A guide ring is fixedly disposed at the bottom of the base, and the inner diameter of the guide ring is equal to the inner diameter of the mounting hole; A positioning ring is fixedly disposed at the bottom of the base and sleeved on the outside of the guide ring. The outer wall of the positioning ring is used to abut against the inner wall of the cement mixing pile. The guide cylinder is frustum-shaped, with its top inner diameter being larger than its bottom inner diameter. The bottom of the guide cylinder is fixedly connected to the base. The guide cylinder is located above and communicates with the mounting hole, and the bottom inner diameter of the guide cylinder is greater than or equal to the diameter of the mounting hole.
2. The positioning device for the rigid composite pile according to claim 1, characterized in that, The inner diameter of the bottom of the guide cylinder is equal to the diameter of the mounting hole, and the central axis of the guide cylinder is collinear with the central axis of the mounting hole.
3. The positioning device for the rigid composite pile according to claim 1, characterized in that, Multiple reinforcing ribs are arranged around the outer side of the guide cylinder. One side of each reinforcing rib is fixedly connected to the outer wall of the guide cylinder, and the bottom is fixedly connected to the base.
4. The positioning device for the rigid composite pile according to claim 3, characterized in that, The reinforcing rib is a right-angled trapezoid, and its hypotenuse is fixedly connected to the outer wall of the guide cylinder, while the right-angled side is perpendicular to the top surface of the base.
5. The positioning device for the rigid composite pile according to claim 1, characterized in that, Also includes: The horizontal device consists of two vertically arranged devices, both of which are fixedly mounted on the base.
6. The positioning device for the rigid composite pile according to claim 5, characterized in that, The horizontal device includes: The tube is made of transparent material and is fixedly mounted on the base. A center mark is marked in the middle of the tube. The tube is filled with liquid, and an air bubble is left between the liquid and the inner wall of the tube. Sealing caps are provided at both ends of the tube.
7. The positioning device for the rigid composite pile according to claim 6, characterized in that, The tube body is fixedly mounted on the base by a fastener, the fastener comprising: The fixing straps are of several types, with the middle part of each fixing strap located on the outside of the tube body. Each of the fixing straps has a first fixing hole at both ends, and the base has a second fixing hole that coincides with the first fixing hole. A fixing bolt is provided, which passes through the first fixing hole and the second fixing hole in sequence and is locked in place by a nut.
8. The positioning device for the rigid composite pile according to claim 1, characterized in that, The base is surrounded by multiple positioning posts, the sidewalls of which abut against the sidewalls of the base, and the bottom of which is inserted into the ground.