Portable steel pipe pile sinking limiting and buffering protection device

Abstract

The utility model discloses a portable steel pipe pile sinking limiting buffer protection device which comprises a crushing head limiter, a pile entering buffer cushion and a pipe pile limiter which are sequentially and fixedly connected from top to bottom, the top of the crushing head limiter is provided with an open hole allowing an excavator crushing head to be inserted, the pile entering buffer cushion is in a disc shape, and the pipe pile limiter is fixedly connected with the pile entering buffer cushion. A round hole matched with the top end of the steel pipe pile is formed in the bottom of the pipe pile limiter, and a stress traction ring is fixedly connected to the outer wall of the pipe pile limiter. The buffer area established by the device can effectively unload redundant pressure which should not be applied to the steel pipe pile body, damage to the steel pipe pile caused by excessive vibration of the crushing head is avoided, and the requirement for the proficiency of an excavator operator is lowered; the device can be formulated according to the type of an excavator crushing head and actual requirements, whether the standard is increased or decreased or not and whether a second buffer area is established or not are determined by oneself, force generated by an excavator can be evenly distributed at the end of the steel pipe pile, the attractiveness of the steel pipe pile is guaranteed, and unsafety and hidden danger of a user are eliminated.

Description

Technical Field

[0001] The utility model relates to the technical field of pile driving limit devices, in particular to a convenient steel pipe pile driving limit buffer protection device. Background Art

[0002] Steel pipe piles are one of the commonly used support structures and are widely used in construction fields such as bridges, roads, building construction, and municipal engineering. They can provide support under geological conditions such as low groundwater level, clay, and sand.

[0003] During the steel pipe pile support process, the excavator first lifts the steel pipe pile and places it at the measuring point, relying on the pile's own weight to settle. Subsequently, the excavator's crushing head is used to knock and vibrate to complete the support. During this process, the excavator's crushing head has two types: flat head and pointed head. Direct contact will cause varying degrees of damage to the end of the steel pipe pile. Secondly, factors such as the excavator's impact force and the operator's proficiency are linearly related to the integrity of the steel pipe pile, which may cause the service life of the steel pipe pile to drop to 30% or even only be able to be turned over 1-2 times, and it can no longer be used, increasing the project cost or increasing the excavator's operating requirements. Summary of the Invention

[0004] The purpose of the utility model is to provide a portable steel pipe pile sinking limit buffer protection device, which can protect the steel pipe piles, improve the turnover rate and service life, and avoid the problem of steel pipe pile damage during the support process.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is: a convenient steel pipe pile sinking limit buffer protection device, including a crushing head limiter, a pile driving buffer pad and a pipe pile limiter fixedly connected in sequence from top to bottom, the top of the crushing head limiter is provided with an opening for inserting the excavator crushing head, the pile driving buffer pad is disc-shaped, the bottom of the pipe pile limiter is provided with a circular hole adapted to the top of the steel pipe pile, and the outer wall of the pipe pile limiter is fixedly connected with a force traction ring.

[0006] Preferably, the crushing head limiter, the pile driving buffer pad and the pipe pile limiter are coaxially arranged, and the bottom end of the excavator crushing head is cylindrical.

[0007] Preferably, the crushing head limiter, pile driving buffer pad and pipe pile limiter are coaxially arranged, and the bottom end of the excavator crushing head is frustum-shaped, and the outer diameter of the bottom end of the excavator crushing head is smaller than the outer diameter of the middle part, and a frustum protrusion is provided in the middle of the bottom inner bottom of the circular hole of the crushing head limiter.

[0008] Preferably, the force-bearing traction rings are arranged in pairs, and each pair of the force-bearing traction rings are distributed at equal angles around the center of the pipe pile limiter.

[0009] Preferably, the outer diameter of the excavator crushing head is smaller than the outer diameter of the top of the steel pipe pile, and the outer diameters of the crushing head limiter, the pile driving buffer pad and the pipe pile limiter increase in sequence.

[0010] The utility model provides a convenient steel pipe pile sinking limit buffer protection device. After the steel pipe pile cannot sink, the crushing head of an excavator is used to knock the crushing head limiter mounted on the top of the steel pipe pile to make the steel pipe pile sink. The pile-entry buffer pad can establish a buffer zone for the impact force generated by the crushing head, ensuring normal support of the steel pipe pile and avoiding damage to the steel pipe pile caused by excessive knocking of the crushing head, thereby extending the service life and increasing the utilization rate and turnover number. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0012] Figure 1 This is a schematic diagram of the structure of the embodiment of the utility model during construction.

[0013] Figure 2 It is a structural schematic diagram of an embodiment of the present utility model.

[0014] Figure 3 It is a top view of an embodiment of the present utility model.

[0015] In the figure: 1. Steel pipe pile; 2. Excavator crushing head; 3. Crushing head limiter; 4. Pile entry buffer pad; 5. Force traction ring; 6. Pipe pile limiter. DETAILED DESCRIPTION

[0016] like Figure 1-3 As shown, the utility model provides a convenient steel pipe pile sinking limit buffer protection device, including a crushing head limiter 3, a pile driving buffer pad 4 and a pipe pile limiter 6 fixedly connected in sequence from top to bottom. The top of the crushing head limiter 3 is provided with an opening for inserting the excavator crushing head 2. The pile driving buffer pad 4 is disc-shaped. The bottom of the pipe pile limiter 6 is provided with a circular hole adapted to the top of the steel pipe pile 1. The outer wall of the pipe pile limiter 6 is fixedly connected to a force traction ring 5.

[0017] The crushing head limiter 3, pile driving cushion 4, force-bearing traction ring 5, and pile stopper 6 are all made of Q235B. Each component's specifications, standards, and materials are customizable. They are welded together to form a single unit, positioned between the excavator's crushing head 2 and the end of the steel pipe pile 1. The pile stopper 6 is welded to the pile driving cushion 4 to maintain the flatness of the end of the steel pipe pile 1, preventing tilting, unevenness, or irregularities at the end. This improves the aesthetics of the steel pipe pile 1 and eliminates potential insecurities and hidden dangers.

[0018] The crushing head limiter 3 and the pile buffer 4 are connected by welding to form a buffer zone, which relieves 70% of the pressure that does not need to be transmitted to the steel pipe pile 1, protects the integrity of the steel pipe pile, prolongs its service life and increases its utilization rate.

[0019] During construction, after the steel pipe pile has completed sinking by its own weight, a rope is used to pass through the force-bearing traction ring 5, and the limit buffer protection device is roughly hung on the excavator. After the excavator crushing head 2 is placed in the crushing head limiter 3, the length of the rope is adjusted to fix the limit buffer protection device. Then, the limit buffer protection device is placed on the top of the steel pipe pile 1 using a crane, and the excavator crushing head 2 is struck with an excavator hammer to carry out support operations. After the steel pipe pile 1 is supported, the limit buffer protection device is removed and subsequent related construction operations are carried out.

[0020] As a preferred embodiment of the present invention, the crushing head limiter 3, pile driving cushion 4, and pipe pile stopper 6 are coaxially arranged, and the bottom end of the excavator crushing head 2 is cylindrical. In most cases, a cylindrical excavator crushing head 2 is used, and the excavator hammer strikes the excavator crushing head 2, which is then cushioned by the pile driving cushion 4 and partially transferred to the steel pipe pile 1, causing the steel pipe pile 1 to sink.

[0021] As a preferred embodiment of the present invention, the crushing head limiter 3, the pile driving buffer 4, and the pile stopper 6 are coaxially arranged, and the bottom end of the excavator crushing head 2 is truncated cone-shaped, and the outer diameter of the bottom end of the excavator crushing head 2 is smaller than the outer diameter of the middle part. A truncated cone protrusion is provided in the middle of the bottom of the circular hole of the crushing head limiter 3. In another structural form of the excavator crushing head 2, i.e., a pointed crushing head, a truncated cone protrusion is provided at the bottom of the crushing head limiter 3 as a second buffer zone to avoid damage caused by excessive impact, and the impact position is closer to the center.

[0022] like Figure 1-3 As shown, the force-bearing traction rings 5 ​​are arranged in pairs, and each pair of force-bearing traction rings 5 ​​is distributed at equal angles around the center of the pipe pile limiter 6. A pair of force-bearing traction rings 5 ​​is set every 120 degrees, for a total of three sets. An excavator uses a rope through the force-bearing traction rings 5 ​​to hoist the entire limit buffer protection device to the top of the steel pipe pile 1, facilitating placement and securing the device to prevent it from falling off.

[0023] like Figure 1-3 As shown, in order to improve the accuracy of the excavator hammer striking the steel pipe pile 1, the outer diameter of the excavator crushing head 2 is smaller than the outer diameter of the top of the steel pipe pile 1, and the outer diameters of the crushing head limiter 3, pile driving buffer 4 and pile stopper 6 increase in sequence.

Claims

1. A portable steel pipe pile sinking limit buffer protection device, characterized by: The invention comprises a crushing head limiter (3), a pile entry buffer pad (4) and a pipe pile limiter (6) which are fixedly connected in sequence from top to bottom. The top of the crushing head limiter (3) is provided with an opening for inserting the crushing head (2) of the excavator. The pile entry buffer pad (4) is in the shape of a disc. The bottom of the pipe pile limiter (6) is provided with a circular hole adapted to the top of the steel pipe pile (1). The outer wall of the pipe pile limiter (6) is fixedly connected with a force traction ring (5).

2. A portable steel pipe pile sinking limit buffer protection device as claimed in claim 1, characterized in that: The crushing head limiter (3), the pile driving buffer pad (4) and the pipe pile limiter (6) are coaxially arranged, and the bottom end of the excavator crushing head (2) is cylindrical.

3. A portable steel pipe pile sinking limit buffer protection device as claimed in claim 1, characterized in that: The crushing head limiter (3), the pile driving buffer pad (4) and the pipe pile limiter (6) are coaxially arranged, and the bottom end of the excavator crushing head (2) is in a truncated cone shape, and the outer diameter of the bottom end of the excavator crushing head (2) is smaller than the outer diameter of the middle part, and a truncated cone protrusion is provided in the middle of the bottom of the circular hole of the crushing head limiter (3).

4. A portable steel pipe pile sinking limit buffer protection device according to any one of claims 1 to 3, characterized in that: The stressed traction rings (5) are arranged in pairs, and each pair of stressed traction rings (5) are distributed at equal angles around the center of the pipe pile limiter (6).

5. A portable steel pipe pile sinking limit buffer protection device as claimed in claim 4, characterized in that: The outer diameter of the excavator crushing head (2) is smaller than the outer diameter of the top end of the steel pipe pile (1), and the outer diameters of the crushing head limiter (3), the pile driving buffer pad (4) and the pipe pile limiter (6) increase in sequence.

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