Pile cap capable of repeatedly using hammering pile
By designing a reusable pile cap with a hollow cylindrical structure and snap-fit nut connection, the problems of difficult removal and adhesion of traditional pile caps are solved, enabling the pile cap to be disassembled and reused, reducing construction costs and increasing the service life of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-10
- Publication Date
- 2026-04-07
AI Technical Summary
Traditional pile caps are difficult to remove after construction in hammer pile operations, cannot be recycled, and result in serious waste of resources. Furthermore, bolted or welded connections are prone to adhesion, affecting reuse.
Design a reusable pile cap with a hollow cylindrical structure and shock-absorbing pads installed on the inner wall. It is connected by snap-fit blocks and screw nuts to achieve a detachable connection between the hammer-driven pile head and the pile cap. Alloy steel is used to improve durability.
This enables the pile caps to be detachable and reused, reducing construction costs, minimizing equipment damage, and improving equipment lifespan and stability.
Smart Images

Figure CN224092500U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pile cap technology, specifically a pile cap for reusable hammer-driven piles. Background Technology
[0002] In current construction pile driving operations, traditional pile caps are mostly made of concrete. After construction, they are difficult to remove and the materials cannot be recycled, resulting in serious waste of resources. Some pile caps that are fixed by bolts or welding are prone to sticking to the pile body under the action of hammering force, which affects reuse and makes it inconvenient to reduce construction costs. Utility Model Content
[0003] The purpose of this invention is to provide a reusable pile cap for hammer-driven piles to solve the problems mentioned in the background art.
[0004] To achieve the above objectives, this utility model provides the following technical solution:
[0005] A reusable hammer-driven pile cap, comprising
[0006] The bottom end of the hammer-driven pile head is fixedly connected to the docking bracket;
[0007] The pile cap is configured as a hollow cylindrical structure. A shock-absorbing pad is fixedly installed on the inner wall of the pile cap. A snap-fit block is detachably and fixedly installed on the inner wall of the top four sides of the pile cap. The snap-fit block is detachably and fixedly connected to the inner wall of the card seat.
[0008] In a preferred embodiment of this utility model, a flange is fixedly installed on the top outer wall of the hammer-driven pile head, and first screw holes are evenly opened around the flange. The outer wall diameter of the mounting base is the same as the outer wall diameter of the pile cap.
[0009] In a preferred embodiment of this utility model, the bottom outer wall of the card holder is fixedly connected to a socket, the bottom outer wall of the socket is in contact with the top of the shock-absorbing pad, a first slot is evenly formed between the four outer walls of the socket, and a second slot is evenly formed around the top inner wall of the pile cap.
[0010] In a preferred embodiment of the present invention, the second card slot and the first card slot are fitted together to install the card block. The side wall of the second card slot is provided with a first insertion hole, and the top outer wall of the first card slot is provided with a second insertion hole.
[0011] In a preferred embodiment of this utility model, a first screw is fixedly installed on the side wall of the snap-fit block, the first screw is engaged with the first insertion hole, and a first nut is fixedly connected to the outer wall of the first screw.
[0012] In a preferred embodiment of this utility model, a second screw is fixedly installed on the top outer wall of the snap-fit block, the second screw is engaged with the inner wall of the second insertion hole, and a second nut is fixedly connected to the top outer wall of the second screw.
[0013] In a preferred embodiment of this utility model, the pile cap is circular, the bottom of the pile cap has rounded corners, and the pile cap is made of alloy steel.
[0014] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
[0015] 1. The shock-absorbing pad installed on the inner wall of the pile cap has a buffering function. When the hammering force is transmitted to the pile cap through the hammering pile head and the docking seat, the shock-absorbing pad can absorb and disperse part of the impact force, reduce the damage to the hammering pile head, and prevent the hammering pile head from cracking during the hammering process.
[0016] 2. By using snap-fit blocks to connect the hammer pile head and pile cap, and then securing them with screws and nuts respectively, the hammer pile head and pile cap can be prevented from becoming inseparable after long-term use. This facilitates the disassembly and reuse of the pile cap, reduces operating costs, and extends the service life of the equipment. Attached Figure Description
[0017] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:
[0018] Figure 1 This is a schematic diagram of the main structure of a pile cap for a reusable hammer-driven pile.
[0019] Figure 2 A top view of the structure in the pile cap of a reusable hammer-driven pile;
[0020] Figure 3 A schematic diagram of the exploded structure in the pile cap of a reusable hammer-driven pile;
[0021] Figure 4 A schematic diagram of the main structure of a pile cap in a reusable hammer-driven pile.
[0022] Figure 5 A schematic diagram of the connecting block structure in the pile cap of a reusable hammer-driven pile;
[0023] Figure 6 This is a schematic diagram of the hammer-driven pile head structure in the pile cap of a reusable hammer-driven pile.
[0024] In the diagram: hammered pile head 100, flange 110, first screw hole 111, mating bracket 120, socket 121, first slot 122, second insertion hole 123, pile cap 200, second slot 210, first insertion hole 211, snap block 220, first screw 221, first nut 222, second screw 223, second nut 224, shock absorber 230. Detailed Implementation
[0025] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.
[0026] Example 1: As Figures 1-6 ,include
[0027] The bottom end of the hammer-driven pile head 100 is fixedly connected to the docking seat 120;
[0028] The pile cap 200 is a hollow cylindrical structure. The inner wall of the pile cap 200 is fixedly installed with a shock-absorbing pad 230. The inner wall of the top of the pile cap 200 is detachably and fixedly installed with a snap-fit block 220. The snap-fit block 220 is detachably and fixedly connected to the inner wall of the card seat 120.
[0029] The specific application scenario of this embodiment is as follows: During pile driving operations in building construction, the pile head 100 and the docking seat 120 are fixedly connected. They act as a whole to bear the impact force applied by the hammering equipment. The pile cap 200 is designed as a hollow cylindrical structure, which is convenient to fit over the bottom of the pile head 100 to protect it. The shock-absorbing pad 230 installed on the inner wall of the pile cap 200 has a buffering function. When the hammering force is transmitted to the pile cap 200 through the pile head 100 and the docking seat 120, the shock-absorbing pad 230 can absorb and disperse part of the impact force, reduce damage to the pile head 100, and prevent the pile head 100 from breaking during the hammering process. The locking block 220 is detachably installed on the inner wall around the top of the pile cap 200 and is detachably connected to the inner wall of the docking seat 120. The detachable connection design allows for the separation of the hammer pile head 100 and the pile cap 200, preventing them from sticking together and becoming impossible to disassemble. This improves the practicality and stability of the equipment. When the pile cap 200 or the hammer pile head 100 is damaged, it can be easily replaced, enabling the reuse of components and reducing construction costs. The shock-absorbing pad 230 is made of natural rubber, which has good elasticity, flexibility, and resilience. It can effectively absorb and disperse hammering energy. Its molecular structure allows it to deform when subjected to external impact, converting energy into internal energy and storing it. Then, it quickly returns to its original shape after the impact ends. At the same time, natural rubber also has good wear resistance and tear resistance, maintaining structural integrity under long-term hammering.
[0030] Example 2: As Figures 3-6 A flange 110 is fixedly installed on the top outer wall of the hammer-driven pile head 100. First screw holes 111 are evenly distributed around the flange 110. The outer diameter of the mounting base 120 is the same as the outer diameter of the pile cap 200. A socket 121 is fixedly connected to the bottom outer wall of the mounting base 120. The bottom outer wall of the socket 121 contacts the top of the shock-absorbing pad 230. First slots 122 are evenly distributed between the four outer walls of the socket 121. Second slots 210 are evenly distributed around the top inner wall of the pile cap 200. The second slots 210 and the first slots 122 engage to secure the mounting clip. The connecting block 220 has a first insertion hole 211 on the side wall of the second slot 210 and a second insertion hole 123 on the top outer wall of the first slot 122. A first screw 221 is fixedly installed on the side wall of the connecting block 220. The first screw 221 is connected to the first insertion hole 211. A first nut 222 is fixedly connected to the outer wall of the first screw 221. A second screw 223 is fixedly installed on the top outer wall of the connecting block 220. The second screw 223 is connected to the inner wall of the second insertion hole 123. A second nut 224 is fixedly connected to the top outer wall of the second screw 223.
[0031] The specific application scenario of this embodiment is as follows: The flange 110 on the top of the hammer pile head 100 and the first screw holes 111 around it are for facilitating the connection between the hammer pile head 100 and the hammering equipment. By bolting through the first screw holes 111, the hammer pile head 100 can be firmly installed on the hammering equipment, ensuring that the hammering force can be effectively transmitted. The outer diameter of the bracket 120 is the same as the outer diameter of the pile cap 200, ensuring the coordination and stability of the overall structure. The socket 121 at the bottom of the bracket 120 contacts the top of the shock-absorbing pad 230, further enhancing the buffering effect, thereby reducing the impact force of the pile cap 200 transmitted to the hammer pile head 100, thus reducing the impact on the hammer pile head 100 and improving the hammering effect. The pile head 100 is protected by a first slot 122 and a second slot 210 that cooperate to install a snap-fit block 220. The first insertion hole 211 and the first screw 221, the second insertion hole 123 and the second screw 223 are respectively inserted and then tightened by the first nut 222 and the second nut 224. This allows the snap-fit block 220 to tightly connect the hammered pile head 100 and the pile cap 200 together. During hammering, this connection method can reliably transmit the hammering force. At the same time, the hammered pile head 100 and the pile cap 200 can be easily separated by disassembling the nuts and screws when needed, which facilitates maintenance and replacement of parts. This makes it easy to disassemble the pile cap 200 and reuse it.
[0032] Example 3: As Figure 4 The pile cap 200 is circular, with rounded corners around the bottom. The pile cap 200 is made of alloy steel.
[0033] The specific application scenario of this embodiment is as follows: The pile cap 200 is made of alloy steel, which has the characteristics of high strength, high toughness, and good wear resistance. During the hammer pile operation, the pile cap 200 needs to withstand huge impact forces. The alloy steel material can ensure that the pile cap 200 is not easily damaged during long-term use, thus extending its service life and allowing it to be reused multiple times, reducing construction costs.
[0034] The working principle of this utility model is as follows: When used by those skilled in the art, the hammer pile head 100 is fixed to the hammering equipment through the first screw hole 111 of the top flange 110. The bottom docking seat 120 is connected to the pile cap 200 through the snap-fit block 220. The snap-fit block 220 engages with the second slot 210 of the pile cap 200 and the first slot 122 of the seat 120, respectively, and is double-tightened by the first screw 221 and the first nut 222, the second screw 223 and the second nut 224 to ensure connection stability. When the pile cap 200 is fitted into the docking seat 120, the bottom rounded corners are... The design incorporates auxiliary guidance to prevent collision damage. The impact energy is transmitted through the hammer head 100 to the docking seat 120, and then through the locking block 220 to the pile cap 200. The natural rubber shock-absorbing pad 230 on the inner wall of the pile cap 200 absorbs and disperses the impact force, reducing the direct impact on the pile head and protecting the pile cap itself. The socket 121 at the bottom of the seat 120 contacts the shock-absorbing pad 230 to further enhance the buffering effect. The pile cap 200 is made of round alloy steel to evenly distribute stress and withstand high-intensity impacts. The seat 120 and the pile cap 200 are designed with the same diameter to ensure overall structural coordination.
[0035] Although embodiments of the present invention have been shown and described, those skilled in the art will understand 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 claims and their equivalents.
Claims
1. A pile cap for a reusable hammer-driven pile, characterized in that, include The bottom end of the hammer-driven pile head (100) is fixedly connected to the docking seat (120); A pile cap (200) is configured as a hollow cylindrical structure. A shock-absorbing pad (230) is fixedly installed on the inner wall of the pile cap (200). A snap-fit block (220) is detachably and fixedly installed on the inner wall of the top four sides of the pile cap (200). The snap-fit block (220) is detachably and fixedly connected to the inner wall of the card seat (120).
2. The pile cap for a reusable hammer-driven pile according to claim 1, characterized in that, A flange (110) is fixedly installed on the top outer wall of the hammer pile head (100). The flange (110) has first screw holes (111) evenly opened around its perimeter. The outer diameter of the mounting base (120) is the same as the outer diameter of the pile cap (200).
3. The pile cap for a reusable hammer-driven pile according to claim 2, characterized in that, The bottom outer wall of the card holder (120) is fixedly connected to the socket (121), the bottom outer wall of the socket (121) is in contact with the top of the shock-absorbing pad (230), the four outer walls of the socket (121) are evenly provided with a first card groove (122), and the top inner wall of the pile cap (200) is evenly provided with a second card groove (210).
4. The pile cap for a reusable hammer-driven pile according to claim 3, characterized in that, The second slot (210) and the first slot (122) are engaged to install the mounting block (220). The second slot (210) has a first insertion hole (211) on its side wall, and the first slot (122) has a second insertion hole (123) on its top outer wall.
5. A pile cap for a reusable hammer-driven pile according to claim 4, characterized in that, The first screw (221) is fixedly installed on the side wall of the snap-fit block (220). The first screw (221) is connected to the first insertion hole (211) by insertion. The first nut (222) is fixedly connected to the outer wall of the first screw (221).
6. A pile cap for a reusable hammer-driven pile according to claim 5, characterized in that, The second screw (223) is fixedly installed on the top outer wall of the snap-fit block (220). The second screw (223) is engaged with the inner wall of the second insertion hole (123). The second nut (224) is fixedly connected to the top outer wall of the second screw (223).
7. The pile cap for a reusable hammer-driven pile according to claim 1, characterized in that, The pile cap (200) is circular, and the bottom of the pile cap (200) has rounded corners. The pile cap (200) is made of alloy steel.