Firmly-connected concrete square pile
By incorporating expansion nails, auxiliary reinforcement plates, and a splicing main body design, the problem of unstable concrete square pile connections was solved, enabling rapid and stable connections and length adjustments, thus improving the splicing strength.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-23
- Publication Date
- 2026-04-03
AI Technical Summary
Existing concrete square piles are difficult to connect and splice easily and securely during use, resulting in insufficient length and inconvenience.
The design employs expansion nails, auxiliary reinforcement plates, and a splicing body. It achieves quick and stable connection through insertion holes, splicing slots, and fixing pins. The auxiliary reinforcement plates are used to enhance the stability of the splicing joints.
It enables rapid and stable connection of concrete square piles, enhances the firmness of the splice, and ensures the overall stability of the connection and flexible adjustment of the length.
Smart Images

Figure CN224078139U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of concrete square pile technology, specifically a concrete square pile with a firm connection. Background Technology
[0002] Concrete square piles are square-section piles made of concrete. They have advantages such as saving timber and steel, durability, and low cost, and have been widely used in foundation engineering of hydraulic structures, industrial buildings, civil buildings, and bridges. They are also often used for anti-sliding or water-proofing of slopes and foundation pits. However, existing concrete square piles cannot be easily and firmly connected and spliced during use, resulting in insufficient length and inconvenience. Therefore, a concrete square pile with a strong connection is needed to solve the above-mentioned problems. Utility Model Content
[0003] The purpose of this utility model is to provide a firmly connected concrete square pile to solve the problems mentioned in the background art.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a firmly connected concrete square pile, comprising expansion nails, auxiliary reinforcing plates, insert pile bodies, and splicing bodies. The splicing bodies are securely connected to the upper end of the insert pile bodies. The auxiliary reinforcing plates are evenly distributed between the insert pile bodies and the splicing bodies. The expansion nails are fixedly installed on the insert pile bodies and the splicing bodies through the auxiliary reinforcing plates. The upper end of the insert pile body is evenly provided with first insertion holes, and the upper end of the insert pile body is provided with a first splicing groove. The upper end of the insert pile body is evenly inserted with first fixing pins.
[0005] Preferably, the splicing body includes a second splicing slot, a first connecting pile, a second insertion hole, a locking connection hole, a second fixing pin, and a second connecting pile. The first connecting pile is disposed at the upper end of the second connecting pile. The second splicing slot is opened in the middle of the upper end of both the first and second connecting piles. The second insertion hole is evenly opened on both the first and second connecting piles. The locking connection hole is evenly opened at the bottom end of both the first and second connecting piles. The second fixing pin is inserted into both the second and first connecting piles.
[0006] Preferably, the bottom end of the first connecting pile is secured inside the second splicing slot provided at the upper end of the second connecting pile, and the second fixing pin is inserted into the securing connection hole at the upper end of the second connecting pile and the bottom end of the first connecting pile.
[0007] Preferably, the bottom end of the second connecting pile is secured inside the first splicing slot, and the first fixing pin is inserted into the securing connection hole at the bottom end of the second connecting pile.
[0008] Preferably, the expansion pin is inserted into the first insertion hole and the second insertion hole.
[0009] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0010] When the length of the inserted pile body is too short to meet the requirements during use, the second connecting pile body and the first connecting pile body in the splicing body can be easily, quickly and stably fastened to the inserted pile body. The connection between the second connecting pile body, the first connecting pile body and the inserted pile body is convenient, quick and stable. After the first connecting pile body and the second connecting pile body and the second connecting pile body are fastened together, the auxiliary reinforcing plate is tightly attached between the first connecting pile body, the second connecting pile body and the inserted pile body. Then, the expansion nail is inserted into the first insertion hole and the second insertion hole after passing through the auxiliary reinforcing plate. The first connecting pile body, the second fixing pin body and the inserted pile body are fixedly connected by the evenly distributed and fixed auxiliary reinforcing plate. The weak parts at the edge of the splice can be reinforced, making the splicing of this concrete square pile firm and convenient, and making the overall connection more firm and stable. Attached Figure Description
[0011] Figure 1 This is a schematic diagram of the main three-dimensional structure of the present utility model;
[0012] Figure 2 This is a schematic diagram of the main body structure of this utility model without the auxiliary reinforcing plate;
[0013] Figure 3 This is a schematic diagram of the main body disassembled structure of this utility model;
[0014] Figure 4 This is a schematic diagram of the main structure of the splicing of this utility model.
[0015] In the diagram: 1-expansion nail, 2-auxiliary reinforcement plate, 3-insertion pile body, 4-splicing body, 5-first insertion hole, 6-first splicing slot, 7-first fixing pin, 8-second splicing slot, 9-first connecting pile body, 10-second insertion hole, 11-locking connection hole, 12-second fixing pin, 13-second connecting pile body. Detailed Implementation
[0016] 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.
[0017] like Figure 1-4 As shown, one embodiment of this utility model provides a firmly connected concrete square pile, including expansion nails 1, auxiliary reinforcing plates 2, insert pile bodies 3, and splicing bodies 4. The splicing bodies 4 are fixedly connected to the upper end of the insert pile bodies 3. The auxiliary reinforcing plates 2 are evenly distributed between the insert pile bodies 3 and the splicing bodies 4. The expansion nails 1 are fixedly installed on the insert pile bodies 3 and the splicing bodies 4 through the auxiliary reinforcing plates 2. The upper end of the insert pile body 3 is evenly provided with first insertion holes 5. The upper end of the insert pile body 3 is provided with a first splicing groove 6. The upper end of the insert pile body 3 is evenly inserted with first fixing pins 7.
[0018] The splicing body 4 includes a second splicing slot 8, a first connecting pile 9, a second insertion hole 10, a locking connection hole 11, a second fixing pin 12, and a second connecting pile 13. The first connecting pile 9 is located at the upper end of the second connecting pile 13. The second splicing slot 8 is opened in the middle of the upper end of the first connecting pile 9 and the second connecting pile 13. The second insertion holes 10 are evenly opened on the first connecting pile 9 and the second connecting pile 13. The locking connection holes 11 are evenly opened at the bottom end of the first connecting pile 9 and the second connecting pile 13. The second fixing pin 12 is inserted into the second connecting pile 13 and the first connecting pile 9. The first connecting pile 9 and the second connecting pile 13 are easy to lock and disassemble.
[0019] The bottom end of the first connecting pile 9 is fixed inside the second splicing slot 8 provided at the upper end of the second connecting pile 13. The second fixing pin 12 is inserted into the upper end of the second connecting pile 13 and the locking connection hole 11 at the bottom end of the first connecting pile 9, and the second fixing pin 12 plays a locking and fixing role.
[0020] The bottom end of the second connecting pile 13 is fixed inside the first splicing slot 6, and the first fixing pin 7 is inserted into the locking connection hole 11 at the bottom end of the second connecting pile 13, thereby locking and fixing it.
[0021] The expansion nail 1 is inserted into the first insertion hole 5 and the second insertion hole 10 to secure the connection.
[0022] Working principle: During use, the lower end of the second connecting pile 13 is inserted into the first splicing slot 6. Then, each of the first fixing pins 7 is hammered into the locking connection hole 11 at the bottom of the insertion pile 3 and the second connecting pile 13 by external force, achieving a quick and stable fixed connection between the second connecting pile 13 and the insertion pile 3. If the length of the second connecting pile 13 and the insertion pile 3 still does not meet the required length after the locking connection, the lower end of the first connecting pile 9 is inserted into the second splicing slot 8 at the upper end of the second connecting pile 13. Then, the second fixing pin 12 is hammered into the locking connection between the upper end of the second connecting pile 13 and the lower end of the first connecting pile 9. The hole 11 allows the first connecting pile 9 and the second connecting pile 13 to be quickly and securely connected. After the first connecting pile 9 and the second connecting pile 13, as well as the second connecting pile 13 and the insert pile 3, are securely connected, the auxiliary reinforcing plate 2 is tightly attached between the first connecting pile 9, the second connecting pile 13, and the insert pile 3. Then, the expansion nail 1 is inserted into the first insertion hole 5 and the second insertion hole 10 after passing through the auxiliary reinforcing plate 2. The auxiliary reinforcing plate 2, which is evenly distributed and fixedly installed, fixes the first connecting pile 9, the second fixing pin 12, and the insert pile 3. It can also reinforce the weak parts at the joint edges, making the splicing of this concrete square pile firm and convenient.
[0023] 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 firmly connected concrete square pile, comprising expansion nails (1), auxiliary reinforcing plates (2), insert pile bodies (3), and splicing bodies (4), characterized in that: The splicing body (4) is fastened to the upper end of the insertion pile body (3). The auxiliary reinforcing plate (2) is evenly distributed between the insertion pile body (3) and the splicing body (4). The expansion nail (1) is fixedly installed on the insertion pile body (3) and the splicing body (4) through the auxiliary reinforcing plate (2). The upper end of the insertion pile body (3) is evenly provided with a first insertion hole (5). The upper end of the insertion pile body (3) is provided with a first splicing slot (6). The upper end of the insertion pile body (3) is evenly inserted with a first fixing pin (7).
2. The firmly connected concrete square pile according to claim 1, characterized in that: The splicing body (4) includes a second splicing slot (8), a first connecting pile (9), a second insertion hole (10), a locking connection hole (11), a second fixing pin (12), and a second connecting pile (13). The first connecting pile (9) is located at the upper end of the second connecting pile (13). The second splicing slot (8) is located at the middle of the upper end of the first connecting pile (9) and the second connecting pile (13). The second insertion hole (10) is evenly located on the first connecting pile (9) and the second connecting pile (13). The locking connection hole (11) is evenly located at the bottom end of the first connecting pile (9) and the second connecting pile (13). The second fixing pin (12) is inserted into the second connecting pile (13) and the first connecting pile (9).
3. A firmly connected concrete square pile according to claim 2, characterized in that: The bottom end of the first connecting pile (9) is fixed inside the second splicing slot (8) provided at the upper end of the second connecting pile (13), and the second fixing pin (12) is inserted into the upper end of the second connecting pile (13) and the fixing connection hole (11) at the bottom end of the first connecting pile (9).
4. A firmly connected concrete square pile according to claim 3, characterized in that: The bottom end of the second connecting pile (13) is secured inside the first splicing slot (6), and the first fixing pin (7) is inserted into the locking connection hole (11) at the bottom end of the second connecting pile (13).
5. A firmly connected concrete square pile according to claim 4, characterized in that: The expansion pin (1) is inserted into the first insertion hole (5) and the second insertion hole (10).