Double-row cast-in-place pile structure for pile foundation engineering
By introducing adjustment and positioning components and limiting components into the double-row cast-in-place pile structure, the problem of cumbersome width adjustment in the existing technology is solved, and rapid adjustment and stable connection are achieved, improving the ease of operation and connection stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- INNER MONGOLIA YUANJING KUNSHI ENGINEERING CO LTD
- Filing Date
- 2025-07-01
- Publication Date
- 2026-05-19
AI Technical Summary
The existing double-row cast-in-place pile structure is cumbersome to adjust in terms of width, requiring overall disassembly and relocation, which results in time-consuming and labor-intensive operations.
A double-row cast-in-place pile structure was designed, comprising a first cast-in-place pile body, connectors, adjustment frame, and adjustment and positioning components. The structure achieves rapid adjustment and stable connection through positioning rods, positioning sleeves, support columns, and limiting components.
It enables convenient and efficient adjustment of the double-row cast-in-place pile structure, improves connection stability and disassembly efficiency, extends service life, and enhances operational comfort.
Smart Images

Figure CN224259343U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pile foundation engineering technology, specifically to a double-row cast-in-place pile structure for pile foundation engineering. Background Technology
[0002] Pile foundation engineering is an important type of foundation in building engineering. It is mainly used to transfer the load of a building to a deep, stable soil or rock layer through piles in order to meet the requirements of foundation bearing capacity and deformation control.
[0003] According to patent announcement number CN217325331U published on the China Patent Network, this utility model discloses a double-row cast-in-place pile structure for deep pit foundations, including a base plate body, a grouting seat, and a connecting plate. The base plate body houses the cast-in-place pile body, with a grouting seat at the top and a clamping ring on the outside. The inner wall of the base plate body has an upper support plate, and the outer wall of the clamping ring has a lower support plate. The bottom of the upper support plate has an upper toothed groove, and a lower toothed block is movably connected to the inside of the upper toothed groove. By providing clamping rings on both sides of the cast-in-place pile body, when the cast-in-place pile body is installed inside the base plate body, it will be clamped to both sides by the clamping rings. The lateral telescopic rod can extend and retract within the lateral support rod, allowing the clamping rings to more closely clamp the outer wall of the cast-in-place pile body. Simultaneously, the lower toothed block moves within the upper toothed groove and is fixed inside the groove, making it convenient to use.
[0004] Double-row cast-in-place pile structures are required in pile foundation engineering. However, most double-row cast-in-place pile structures on the market are usually fixed, which makes it cumbersome to adjust the relative width of the double-row cast-in-place pile structure. It requires disassembly, movement, fixing and reassembly as a whole, which is time-consuming and labor-intensive and cannot bring convenience to users.
[0005] Therefore, it is necessary to redesign the double-row cast-in-place pile structure to effectively prevent the cumbersome process of adjusting the relative width of the double-row cast-in-place pile structure. Utility Model Content
[0006] To address the problems mentioned in the background art, the purpose of this utility model is to provide a double-row cast-in-place pile structure for pile foundation engineering, which has the advantage of facilitating quick adjustment of the width of the double-row cast-in-place pile structure, thus solving the problem of the cumbersome process of adjusting the relative width of the double-row cast-in-place pile structure.
[0007] To achieve the above objectives, this utility model provides the following technical solution: a double-row cast-in-place pile structure for pile foundation engineering, comprising a first cast-in-place pile body, a second cast-in-place pile body disposed on the right side of the first cast-in-place pile body, a first connecting member fixedly connected to the right side of the first cast-in-place pile body, a second connecting member fixedly connected to the left side of the second cast-in-place pile body, an adjusting frame fixedly connected to the left side of the second connecting member, an adjusting positioning component disposed inside the adjusting frame, the adjusting positioning component comprising a groove, a positioning sleeve and a positioning rod, the groove being formed on the left side of the adjusting frame, the positioning sleeve being fixedly connected inside the groove, the positioning rod being disposed at the top and bottom of the first connecting member, and the inner side of the positioning rod being threadedly connected to the inner side of the positioning sleeve.
[0008] In a preferred embodiment of this utility model, the first connector and its surface are provided with an auxiliary limiting component. The auxiliary limiting component includes a support column, the surface of which is provided with an adjusting thread, and the surface of the adjusting thread is threadedly connected to a first positioning block. A second positioning block is provided on the surface of the adjusting thread and to the right of the first positioning block. A fastening snap ring is sleeved on the surface of the support column, the right side of which contacts the left side of the second positioning block, and the left side of which contacts the surface of the second connector.
[0009] As a preferred embodiment of this utility model, a disassembly assembly is provided on the right side of the support column. The disassembly assembly includes a rotating block, and a screw is fixedly connected to the left side of the rotating block. The surface of the screw is connected to the internal thread of the support column.
[0010] As a preferred embodiment of this invention, the surface of the rotating block is provided with anti-slip texture, which is used in conjunction with the rotating block.
[0011] As a preferred embodiment of this invention, the surface of the support column is provided with an anti-rust coating, which is used in conjunction with the support column.
[0012] As a preferred embodiment of this invention, a positioning pad is fitted onto the surface of the positioning rod, and the inner side of the positioning pad is in contact with the surface of the first connector.
[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0014] 1. This utility model adds the functionality of facilitating quick adjustment of the width of the double-row cast-in-place pile structure, enabling convenient and efficient adjustment of the width of the double-row cast-in-place pile structure, and preventing the cumbersome situation when adjusting the relative width of the double-row cast-in-place pile structure.
[0015] 2. By setting an auxiliary limiting component, this utility model can provide auxiliary limiting for the first connecting member and the second connecting member, thereby improving the connection stability of the first connecting member and the second connecting member.
[0016] 3. This utility model, through the setting of disassembly components, enables the second connecting block, fastening spring and the first connecting block to be quickly disassembled, thereby improving the disassembly and adjustment efficiency.
[0017] 4. The anti-slip texture of this invention makes it easier for users to rotate the rotating block, thus improving user comfort.
[0018] 5. This utility model can protect the surface of the support column by setting an anti-rust coating, thereby improving the service life of the support column.
[0019] 6. By setting the positioning pad, this utility model can effectively increase the friction between the positioning rod and the first connecting member and protect the surface of the first connecting member. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the structure of this utility model;
[0021] Figure 2 This is a front view of the first connector of this utility model;
[0022] Figure 3 This is an exploded view of the support column of this utility model;
[0023] Figure 4 This is an exploded view of the adjustment frame of this utility model.
[0024] In the figure: 1. First cast-in-place pile body; 2. Second cast-in-place pile body; 3. First connector; 4. Second connector; 5. Adjusting frame; 6. Adjusting and positioning assembly; 7. Groove; 8. Positioning sleeve; 9. Positioning rod; 10. Auxiliary limiting assembly; 11. Support column; 12. Adjusting thread; 13. First positioning block; 14. Second positioning block; 15. Fastening snap ring; 16. Disassembly assembly; 17. Rotating block; 18. Screw; 19. Anti-slip texture; 20. Anti-rust coating; 21. Positioning shim. Detailed Implementation
[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0026] like Figures 1 to 4As shown, this utility model provides a double-row cast-in-place pile structure for pile foundation engineering, including a first cast-in-place pile body 1, a second cast-in-place pile body 2 arranged on the right side of the first cast-in-place pile body 1, a first connecting member 3 fixedly connected to the right side of the first cast-in-place pile body 1, a second connecting member 4 fixedly connected to the left side of the second cast-in-place pile body 2, an adjusting frame 5 fixedly connected to the left side of the second connecting member 4, an adjusting positioning component 6 arranged inside the adjusting frame 5, the adjusting positioning component 6 including a groove 7, a positioning sleeve 8 and a positioning rod 9, the groove 7 is opened on the left side of the adjusting frame 5, the positioning sleeve 8 is fixedly connected inside the groove 7, and the positioning rod 9 is arranged at the top and bottom of the first connecting member 3, and the inner side of the positioning rod 9 is threadedly connected to the inner side of the positioning sleeve 8.
[0027] refer to Figure 2 The first connector 3 and the surface are provided with an auxiliary limiting component 10. The auxiliary limiting component 10 includes a support column 11. The surface of the support column 11 is provided with an adjusting thread 12. The surface of the adjusting thread 12 is threadedly connected to a first positioning block 13. The surface of the adjusting thread 12 and located to the right of the first positioning block 13 is provided with a second positioning block 14. The surface of the support column 11 is fitted with a fastening spring 15. The right side of the fastening spring 15 contacts the left side of the second positioning block 14, and the left side of the fastening spring 15 contacts the surface of the second connector 4.
[0028] As a technical optimization of this utility model, by setting the auxiliary limiting component 10, the first connecting member 3 and the second connecting member 4 can be assisted in limiting the connection, thereby improving the connection stability of the first connecting member 3 and the second connecting member 4.
[0029] refer to Figure 3 A disassembly assembly 16 is provided on the right side of the support column 11. The disassembly assembly 16 includes a rotating block 17. A screw 18 is fixedly connected to the left side of the rotating block 17. The surface of the screw 18 is connected to the internal thread of the support column 11.
[0030] As a technical optimization of this utility model, the second connecting block, the fastening spring 15 and the first connecting block can be quickly disassembled by setting the disassembly component 16, thereby improving the disassembly and adjustment efficiency.
[0031] refer to Figure 3 The surface of the rotating block 17 is provided with anti-slip texture 19, which is used in conjunction with the rotating block 17.
[0032] As a technical optimization of this utility model, the anti-slip texture 19 makes it easier for users to rotate the rotating block 17, thus improving user comfort.
[0033] refer to Figure 3 The surface of the support column 11 is provided with an anti-rust coating 20, which is used in conjunction with the support column 11.
[0034] As a technical optimization of this utility model, the anti-rust coating 20 can protect the surface of the support column 11 and improve the service life of the support column 11.
[0035] refer to Figure 2 The positioning rod 9 is fitted with a positioning pad 21, and the inner side of the positioning pad 21 is in contact with the surface of the first connector 3.
[0036] As a technical optimization of this utility model, by setting the positioning pad 21, the friction between the positioning rod 9 and the first connecting member 3 can be effectively increased, and the surface of the first connecting member 3 can be protected.
[0037] The working principle and usage process of this utility model are as follows: In use, the first grouting pile body 1 and the second grouting pile body 2 are positioned, and the first connecting piece 3 and the second connecting piece 4 are aligned. The positioning rod 9 is inserted into the pre-drilled holes of the first connecting piece 3 and the second connecting piece 4, and screwed into the interior of the positioning sleeve 8. The depth is adjusted via the thread to ensure alignment of the pile axis. The positioning rod 9, through its threaded engagement with the positioning sleeve 8, allows for adjustment of the connection depth. The positioning washer 21 increases friction, ensuring a stable connection. The support column 11 is inserted through the pre-drilled holes of the first connecting piece 3 and the second connecting piece 4. The first positioning block 13, the fastening spring 15, and the second positioning block 14 are installed sequentially. The connection depth is adjusted via the thread 12. The threaded connection of the positioning block 14 achieves axial limiting. The right side of the first positioning block 13 limits the left side of the second connecting piece 4. It is locked by the elastic preload of the fastening spring 15 to prevent axial loosening. Rotate the second positioning block 14 to the preset position to fix the fastening spring 15. When disassembly is required, rotate the rotating block 17 through the anti-slip texture 19. The rotating block 17 drives the screw 18 to exit the support column 11. Take out the second positioning block 14, the fastening spring 15 and the first positioning block 13 in sequence. Finally, pull out the support column 11 to complete the quick disassembly.
[0038] In summary, this double-row cast-in-place pile structure for pile foundation engineering, by adding functionality to facilitate quick and easy adjustment of the width of the double-row cast-in-place pile structure, enables convenient and efficient adjustment of the width of the double-row cast-in-place pile structure, preventing the cumbersome situation of adjusting the relative width of the double-row cast-in-place pile structure and solving the problem of the cumbersome adjustment of the relative width of the double-row cast-in-place pile structure.
[0039] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A twin row cast-in-place pile structure for pile foundation engineering, comprising a first cast-in-place pile body (1), characterized in that: A second grouting pile body (2) is provided on the right side of the first grouting pile body (1). A first connector (3) is fixedly connected to the right side of the first grouting pile body (1). A second connector (4) is fixedly connected to the left side of the second grouting pile body (2). An adjustment frame (5) is fixedly connected to the left side of the second connector (4). An adjustment positioning component (6) is provided inside the adjustment frame (5). The adjustment positioning component (6) includes a groove (7), a positioning sleeve (8), and a positioning rod (9). The groove (7) is opened on the left side of the adjustment frame (5). The positioning sleeve (8) is fixedly connected inside the groove (7). The positioning rod (9) is located at the top and bottom of the first connector (3). The inner side of the positioning rod (9) is threadedly connected to the inside of the positioning sleeve (8).
2. The double-row cast-in-place pile structure for pile foundation engineering according to claim 1, characterized in that: The first connector (3) and the surface are provided with an auxiliary limiting component (10). The auxiliary limiting component (10) includes a support column (11). The surface of the support column (11) is provided with an adjusting thread (12). The surface of the adjusting thread (12) is threadedly connected to a first positioning block (13). The surface of the adjusting thread (12) and located to the right of the first positioning block (13) is provided with a second positioning block (14). The surface of the support column (11) is fitted with a fastening spring (15). The right side of the fastening spring (15) contacts the left side of the second positioning block (14), and the left side of the fastening spring (15) contacts the surface of the second connector (4).
3. The double-row cast-in-place pile structure for pile foundation engineering according to claim 2, characterized in that: A disassembly assembly (16) is provided on the right side of the support column (11). The disassembly assembly (16) includes a rotating block (17). A screw (18) is fixedly connected to the left side of the rotating block (17). The surface of the screw (18) is threadedly connected to the inside of the support column (11).
4. The double-row cast-in-place pile structure for pile foundation engineering according to claim 3, characterized in that: The surface of the rotating block (17) is provided with anti-slip texture (19), which is used in conjunction with the rotating block (17).
5. The double-row cast-in-place pile structure for pile foundation engineering according to claim 2, characterized in that: The surface of the support column (11) is provided with an anti-rust coating (20), which is used in conjunction with the support column (11).
6. The double-row cast-in-place pile structure for pile foundation engineering according to claim 1, characterized in that: The positioning rod (9) is fitted with a positioning pad (21), and the inner side of the positioning pad (21) is in contact with the surface of the first connector (3).