Positioning device of prestressed concrete pipe pile
By using the upper and lower positioning components with protective plates and guide arms for limiting and guiding during the docking of prestressed concrete pipe piles, the problems of pile head damage and centerline deviation control were solved, and high-precision docking was achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ROAD & BRIDGE INT CO LTD
- Filing Date
- 2025-04-02
- Publication Date
- 2026-05-19
AI Technical Summary
In existing technologies, prestressed concrete pipe piles are prone to collisions and friction during docking, which can lead to damage to the pile head, and it is difficult to control the centerline deviation of the upper and lower piles within the target range.
The system employs an upper positioning assembly and a lower positioning assembly, including an upper clamp, a protective plate, and a guide arm. The protective plate and the guide arm provide limiting guidance to ensure the smooth introduction of the upper pipe pile, reduce collisions and friction, and lower the risk of pile head damage.
This ensured that the centerline deviation of the upper and lower piles was controlled within the target range, reducing the risk of pile head damage and improving docking accuracy and efficiency.
Smart Images
Figure CN224259366U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of prestressed concrete pouring construction technology, specifically relating to a positioning device for prestressed concrete pipe piles. Background Technology
[0002] Prestressed concrete pipe piles are slender, tubular components driven into the ground with a cross-sectional dimension much smaller than their length. The upper part of the prestressed concrete pipe pile is connected to the pile cap to form a pile foundation. When splicing piles, it is essential to ensure that the centerline deviation between the upper and lower piles is controlled within 10 millimeters. Currently, positioning devices are commonly used to achieve the positioning between two pipe piles.
[0003] For example, in the prior art, Chinese utility model patent document with authorization announcement number CN221895765U discloses a detachable pipe pile splicing positioning device. The pipe pile extends into the guide and enters the positioning space formed by the connecting rod. After the two pipe piles are connected, the joint is welded using a welding process. However, when the pipe pile enters the semi-guide, it will collide and rub against the semi-guide, increasing the risk of damage to the end of the pipe pile. If the end of the pipe pile is damaged, it needs to be ground and filled, which increases the working time.
[0004] Therefore, it is necessary to design a positioning device for prestressed concrete pipe piles that can position the two pipe piles during docking, ensure that the centerline deviation of the upper and lower piles is controlled within the target range, and reduce the risk of pile head damage to solve the current technical problems. Summary of the Invention
[0005] To address the shortcomings of existing technologies, this utility model provides a positioning device for prestressed concrete pipe piles that can position the piles between two pipe piles during docking, ensuring that the centerline deviation of the upper and lower piles is controlled within the target range and reducing the risk of pile head damage.
[0006] The technical solution of this utility model is: a positioning device for prestressed concrete pipe piles, comprising:
[0007] Upper positioning component and lower positioning component;
[0008] The upper positioning component has an upper clamp that is detachably and fixedly fitted onto the lower end of the upper pipe pile. The lower end of the upper clamp is provided with a protective plate, and the bottom end of the protective plate is flush with the bottom end of the upper pipe pile.
[0009] The lower positioning component has a lower clamp that can be detachably and fixedly fitted onto the upper end of the lower pipe pile. The outer side of the lower clamp has guide arms arranged in a circular array. The guide arms have a straight plate and an inclined guide plate connected as an integral structure. The included angle α between the straight plate and the inclined guide plate is an obtuse angle. The end of the straight plate facing away from the inclined guide plate is hinged to the bottom side of the lower clamp. The middle part of the straight plate is detachably and fixedly connected to the top side of the lower clamp.
[0010] The upper side of the lower clamp is fixedly provided with a fixing seat corresponding to the flat plate. The fixing seat has a groove inside that matches the flat plate. The flat plate is detachably and fixedly assembled inside the fixing seat by a bolt and nut mechanism.
[0011] The guard plate is a semi-circular arc plate, and the guard plate is hinged to the outer side of the upper clamp, and the ends of the two guard plates are magnetically connected.
[0012] A swing arm is fixedly installed in the center of the outer side of the guard plate. The swing arm is parallel to the axis of the guard plate, and one end of the swing arm opposite to the guard plate is hinged to the outer side of the upper clamp.
[0013] A connecting block is provided on the outer side of the end of the guard plate, and a magnet is fixedly embedded inside the connecting block. The connecting blocks at the ends of the two guard plates are magnetically connected by the magnet.
[0014] The inner sides of the upper clamp, lower clamp, and guard plate are all fixedly provided with pads.
[0015] The included angle α between the straight plate and the inclined guide plate is 150°.
[0016] The lower clamp has four guide arms arranged in a circular array on its outer side.
[0017] The beneficial effects of this utility model are:
[0018] (1) In this utility model, the upper positioning component and the lower positioning component are respectively installed on the upper pipe pile and the lower pipe pile at corresponding positions. Then, the upper pipe pile is hoisted to the upper end of the lower pipe pile. The protective plate contacts the guide arm. The inclined guide plate in the guide arm limits and guides the protective plate around the protective plate, so that the lower end of the upper pipe pile with the protective plate is smoothly guided into the straight plate, so that the ends of the upper pipe pile and the lower pipe pile are aligned, and the center line deviation of the upper and lower piles is controlled within the target range.
[0019] (2) During the positioning process of lowering the upper pipe pile, the lower end of the upper pipe pile does not directly contact the lower positioning component. Instead, the upper pipe pile and the lower pipe pile are positioned by the protective plate sleeved on the lower end of the upper pipe pile and the guide arm. This reduces the collision and friction received by the lower end of the upper pipe pile and reduces the risk of pile head damage. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the positioning device for prestressed concrete pipe piles in this utility model.
[0021] Figure 2 This is one of the schematic diagrams showing the installation state of the positioning device for prestressed concrete pipe piles in this utility model.
[0022] Figure 3 This is the second schematic diagram showing the installation status of the positioning device for prestressed concrete pipe piles in this utility model. Detailed Implementation
[0023] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. The descriptions of the exemplary embodiments are merely illustrative and are not intended to limit the present invention or its application or use in any way. The present invention can be implemented in many different forms and is not limited to the embodiments described herein. These embodiments are provided to make the present invention thorough and complete, and to fully express the scope of the present invention to those skilled in the art. It should be noted that, unless otherwise specifically stated, the relative arrangement of components and steps, the composition of materials, numerical expressions, and values set forth in these embodiments should be interpreted as merely exemplary and not as limiting.
[0024] The terms "first," "second," and similar words used in this invention do not indicate any order, quantity, or importance, but are merely used to distinguish different parts. Words such as "including" or "comprising" mean that the element preceding the word encompasses the element listed after it, and do not exclude the possibility of encompassing other elements as well. Terms such as "upper," "lower," "left," and "right" are only used to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.
[0025] like Figures 1 to 3 As shown, the positioning device for prestressed concrete pipe piles includes: an upper positioning component 1 and a lower positioning component 2; the upper positioning component 1 has an upper clamp 11 that is detachably and fixedly fitted onto the lower end of the upper pipe pile 3, and a protective plate 12 is provided at the lower end of the upper clamp 11, with the bottom end of the protective plate 12 flush with the bottom end of the upper pipe pile 3; the lower positioning component 2 has a lower clamp 21 that is detachably and fixedly fitted onto the upper end of the lower pipe pile 4, and guide arms 22 are arranged in a circumferential array on the outer side of the lower clamp 21, the guide arms being connected as a single unit. The structure consists of a straight plate 222 and an inclined guide plate 221. The included angle α between the straight plate 222 and the inclined guide plate 221 is an obtuse angle. One end of the straight plate 222 facing away from the inclined guide plate 221 is hinged to one side of the bottom end of the lower clamp 21. The middle part of the straight plate 222 is detachably and fixedly connected to one side of the top end of the lower clamp 21. In this embodiment, the upper positioning component 1 and the lower positioning component 2 are respectively installed at corresponding positions on the upper pipe pile 3 and the lower pipe pile 4. Then, the upper pipe pile 3 is hoisted to the upper end of the lower pipe pile 4. Figure 2 As shown, the protective plate 12 contacts the guide arm 22, and the inclined guide plate 221 in the guide arm 22 limits and guides the protective plate 12 around its perimeter, so that the lower end of the upper pipe pile 3 fitted with the protective plate 12 is smoothly guided into the space between the straight plates 222, as shown. Figure 3As shown, this ensures that the ends of the upper pipe pile 3 and the lower pipe pile 4 are aligned, and that the centerline deviation of the upper and lower piles is controlled within the target range. During the positioning process of lowering the upper pipe pile 3, the lower end of the upper pipe pile 3 does not directly contact the lower positioning component 2, but rather contacts the guide arm 22 through the protective plate 12 fitted on the lower end of the upper pipe pile 3, thereby reducing the collision and friction received by the lower end of the upper pipe pile 3 and reducing the risk of pile head damage. After positioning, the middle part of the flat plate 222 is separated from the top side of the lower clamp 21, the guide arm 22 is flipped downwards, and then the protective plate 12 is flipped upwards to expose the joint between the upper pipe pile 3 and the lower pipe pile 4, which can then be welded.
[0026] In some embodiments, a fixing seat 23 corresponding to the flat plate 222 is fixedly provided on the upper side of the lower clamp 21. The fixing seat 23 has a groove that matches the flat plate 222. The flat plate 222 is detachably and fixedly assembled inside the fixing seat 23 by a bolt and nut mechanism 24. At this time, the flat plate 222 is parallel to the axis of the lower clamp 21. When it is necessary to separate the middle part of the flat plate 222 from the top side of the lower clamp 21, the bolt and nut mechanism 24 is removed, and the middle part of the flat plate 222 can be separated from the top side of the lower clamp 21, and the guide arm 22 is flipped down.
[0027] In some embodiments, the guard plate 12 is a semi-circular arc plate, the guard plate 12 is hinged to the outer side of the upper clamp 11, and the ends of the two guard plates 12 are magnetically connected; the magnetic connection method facilitates the separation of the two guard plates 12 before welding.
[0028] In some embodiments, a swing arm 13 is fixedly provided in the center of the outer side of the guard plate 12. The swing arm 13 is parallel to the axis of the guard plate 12, and one end of the swing arm 13 away from the guard plate 12 is hinged to the outer side of the upper clamp 11. After positioning, the two guard plates 12 that are magnetically attracted together are separated, and the joint between the upper pipe pile 3 and the lower pipe pile 4 can be exposed by flipping the guard plate 12 upward by the swing arm 13, which is convenient for welding and fixing.
[0029] In some embodiments, a connecting block 14 is provided on the outer side of the end of the guard plate 12, and a magnet is fixedly embedded inside the connecting block 14. The connecting blocks 14 at the ends of the two guard plates 12 are magnetically connected by the magnet.
[0030] In some embodiments, pads 5 are fixedly provided on the inner sides of the upper clamp 11, the lower clamp 21, and the protective plate 12. The pads 5 can reduce the wear between the upper clamp 11, the lower clamp 21, the protective plate 12 and the pipe pile; specifically, the pads 5 are rubber plates.
[0031] In some embodiments, as a specific implementation of the guide arm 22, the included angle α between the straight plate and the inclined guide plate is 150°.
[0032] In some embodiments, the outer side of the lower clamp 21 has four guide arms 22 arranged in a circular array. The four guide arms 22 are used to position and guide the protective plate 12 around its perimeter during the hoisting of the upper pipe pile 3.
[0033] The various embodiments of this utility model have now been described in detail. To avoid obscuring the concept of this utility model, some details known in the art have not been described. Those skilled in the art can fully understand how to implement the technical solutions disclosed herein based on the above description.
[0034] The embodiments described above only illustrate some implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.
Claims
1. A positioning device for a prestressed concrete pipe pile, characterized in that, The utility model relates to a kind of pipe pile fixing device, including: Upper positioning assembly and lower positioning assembly; The upper positioning assembly has upper hoop that can be detachably fixed in the lower end of upper pipe pile, the lower end of the upper hoop is provided with guard plate, the bottom end of the guard plate is flush with the bottom end of the upper pipe pile; The lower positioning assembly has lower hoop that can be detachably fixed in the upper end of lower pipe pile, the outer side of the lower hoop is circumferentially arrayed with guide arm, the guide arm has straight plate and inclined guide plate connected into an integral structure, the included angle α between the straight plate and the inclined guide plate is obtuse angle, the end of the straight plate away from the inclined guide plate is hinged with the bottom end side of the lower hoop, and the middle part of the straight plate is detachably fixedly connected with the top end side of the lower hoop.
2. The positioning device of a prestressed concrete pipe pile according to claim 1, characterized in that: The upper end side of the lower hoop is fixedly provided with fixed seat corresponding to the straight plate, the inside of the fixed seat is provided with notch matching the straight plate, and the straight plate is detachably fixedly assembled in the inside of the fixed seat by bolt and nut mechanism.
3. The positioning device of the pre-stressed concrete pipe pile according to claim 1, characterized in that: The guard plate is semicircular arc plate, the guard plate is hinged with the outer side of the upper hoop, and the end portions of two guard plates are magnetically connected.
4. The positioning device for a pre-stressed concrete pipe pile according to claim 3, characterized in that: The outer side of the guard plate is centrally fixedly provided with swing arm, the swing arm is parallel to the axis of the guard plate, the end of the swing arm away from the guard plate is hinged with the outer side of the upper hoop.
5. The positioning device for a pre-stressed concrete pipe pile according to claim 3, characterized in that: The outer side of the end portion of the guard plate is provided with connecting block, the inside of the connecting block is fixedly inlaid with magnet, and the connecting blocks between the end portions of two guard plates are magnetically connected by the magnet.
6. The device for positioning a pre-stressed concrete pipe pile according to claim 1, characterized in that: The inner side of the upper hoop, lower hoop and guard plate is fixedly provided with backing plate.
7. The device for positioning a pre-stressed concrete pipe pile according to claim 1, characterized in that: The included angle α between the straight plate and the inclined guide plate is 150 °.
8. The device for positioning a pre-stressed concrete pipe pile according to claim 1, characterized in that: The outer side of the lower hoop is circumferentially arrayed with four guide arms.