A pile machine portal protection safety device

By designing a movable protective device, the problems of vacuum period and low mobility of fixed protective covers in traditional cast-in-place pile construction were solved, enabling rapid switching of protective states and improving construction safety and efficiency.

CN224314641UActive Publication Date: 2026-06-02THE THIRD CONSTR OF CHINA CONSTR EIGHTH ENG BUREAU

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
THE THIRD CONSTR OF CHINA CONSTR EIGHTH ENG BUREAU
Filing Date
2025-06-05
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

In traditional cast-in-place pile construction, the fixed, customized protective cover has a vacuum period, which leads to safety hazards. It is also inefficient to move and has a large weight, increasing the workload of personnel.

Method used

A movable protective device including a bottom plate and side plates was designed. The side plates are rotated and installed on the bottom plate, and can be closed into a tower-type protective state or a flat state. Combined with snap-on locking parts and limit components, the protective state can be quickly switched.

Benefits of technology

It improves the convenience and efficiency of protective measures, reduces the workload of personnel, enhances construction safety and stability, and reduces the period of protective vacuum.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to a safety device for protecting pile driver openings, belonging to the technical field of construction equipment. It addresses the problems of existing fixed, customized protective covers used in pile driver construction, which suffer from protection gaps, safety hazards, heavy weight, low mobility, and high workload for personnel. This application includes a bottom protective plate and several side protective plates. The bottom plate is fitted onto the outside of the opening, and the side protective plates are rotatably installed on the bottom protective plate. The side protective plates rotate along the bottom protective plate towards the opening and abut against each other to form a closed protective state. They also rotate along the bottom protective plate away from the opening and are on the same plane as the bottom protective plate to form a flat state. This safety device adopts a rotating, movable structure, eliminating the need for overall movement of the protective device, facilitating convenient switching between protective states, increasing construction efficiency, and reducing personnel workload.
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Description

Technical Field

[0001] This utility model relates to a safety protection device for pile driver openings, belonging to the technical field of building construction equipment. Background Technology

[0002] Pile foundation construction refers to the process of constructing the foundation of a building. A pile foundation consists of piles and pile caps. Specific construction methods include two types: precast piles and cast-in-place piles. Precast piles: Precast reinforced concrete piles are driven into the ground using a pile driver. Their advantages are material savings and high strength, making them suitable for buildings with high requirements. However, their disadvantages include high construction difficulty, limited construction time due to the number of machines available, and the need for concrete pouring. Cast-in-place piles: Holes are first drilled at the construction site to the required depth, then a reinforcing cage is placed inside and concrete is poured. Their advantages are lower construction difficulty, and all piles can be constructed simultaneously, greatly saving time. However, their disadvantages include lower bearing capacity and higher material consumption.

[0003] Currently, in traditional cast-in-place pile construction, the pile foundation is not formed in one go. From the drilling of the pile driver's hole to the subsequent pouring, the hole needs to be protected to prevent personnel from falling. Traditional hole protection uses fixed, customized protective covers. While this solves the problem of hole protection, there are protective gaps during the construction intervals from drilling to lowering the reinforcing cage and during pouring. This requires temporary personnel to monitor the hole or frequent repositioning of the protective cover to close or open it. Furthermore, the fixed protective cover wastes time during repositioning, and its heavy weight can lead to personnel neglecting the protective gaps, resulting in construction safety hazards. Therefore, a pile driver hole protection safety device is needed to solve the problems of existing fixed, customized protective covers used in cast-in-place pile construction, such as protective gaps, safety hazards, heavy protective covers, low repositioning efficiency, and heavy workload for personnel. Utility Model Content

[0004] The purpose of this utility model is to provide a safety protection device for the opening of a pile driver, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a safety device for protecting the opening of a pile driver, comprising a bottom protective plate and several side protective plates. The bottom plate is fitted onto the outside of the opening, and the several side protective plates are rotatably installed on the bottom protective plate. The several side protective plates rotate along the bottom protective plate toward the opening and abut against each other to form a closed protective state, and rotate along the bottom protective plate toward the direction away from the opening and are located on the same plane as the bottom protective plate to form a flat state.

[0006] Specifically, the safety device for protecting the piling machine opening also includes a locking element to restrict the side guard plate from rotating away from the opening when the protective device is closed.

[0007] Specifically, the locking element is a connecting buckle; the connecting buckle is installed on the side guard plate, and one end of it is rotatably installed on the side plate of the side guard plate away from the bottom guard plate, and the other end is provided with a limiting groove to form a locking end; when several side guard plates are in the closed protective state, the connecting buckle is locked on the plate of another side guard plate opposite to the side guard plate where the connecting buckle is located through the limiting groove, so as to restrict the two side guard plates from rotating away from the opening.

[0008] Specifically, there are several connecting clips.

[0009] Specifically, the bottom guard plate is provided with several limiting components at intervals; the limiting components include a mounting frame and a limiting block; the mounting frame is fixedly installed on the bottom guard plate, and the frame away from the bottom guard plate is fixedly installed with a limiting block, and the limiting block is located on the rotation trajectory of the side guard plate to restrict the side guard plate from rotating towards the opening.

[0010] Specifically, at least one of the side panels has a mounting slot on the side of the panel away from the bottom panel for mounting warning elements.

[0011] Specifically, the side guard plate has a plate structure with a gradually changing width, and its bottom, wider end is rotatably connected to the bottom guard plate.

[0012] Specifically, the bottom protective plate is a square plate structure, and there are four side protective plates. The four side protective plates are rotatably installed on the four sides of the bottom protective plate. The four side protective plates rotate along the bottom protective plate towards the opening and abut against each other to form a tower-like closed protective state.

[0013] Specifically, the side panels are a frame structure with openwork panels.

[0014] Specifically, the bottom and side guards are made of steel.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. This application employs a bottom protective plate and several side protective plates. The side protective plates are rotatably installed on the bottom protective plate, and the bottom protective plate is fitted over the outside of the pile driver opening. This allows the side protective plates to rotate along the bottom protective plate towards the opening and abut against each other, forming a closed protective state. Conversely, the side protective plates can rotate along the bottom protective plate away from the opening and lie on the same plane as the bottom protective plate, forming a flat state. This means that when opening protection is needed, simply rotating the side protective plates to close them is sufficient for protection; during construction, simply rotating the side protective plates to lay them flat disarms them. The safety device of this application adopts a rotating, movable structure, eliminating the need for overall movement of the protective device, facilitating convenient switching between protective states, increasing construction efficiency, and reducing personnel workload.

[0017] 2. Building upon the foregoing, the pile driver opening protection safety device of this application further includes a snap-locking component, which is a connecting snap-lock used to restrict the side guard plates from rotating away from the opening when the protection is closed. This allows for quick locking between the side guard plates when they are closed in the protection state via the snap-locking component, and also enables rapid separation and release when the protection is released, thereby improving construction efficiency.

[0018] 3. Building upon the foregoing, the bottom protective plate of this application is provided with a plurality of limiting components at intervals, including a mounting frame and limiting blocks. The mounting frame is fixedly installed on the bottom protective plate, and the limiting blocks are fixedly installed on the frame body away from the bottom protective plate. The limiting blocks are located on the rotational trajectory of the side protective plates to restrict the rotational movement of the side protective plates toward the opening. This ensures that when the side protective plates are closed, they can accurately abut against each other and form a single unit under the limiting action of the limiting blocks, guaranteeing the structural stability in the closed state. Furthermore, the setting of the limiting blocks facilitates the closing of the side protective plates; personnel only need to push the side protective plates to rotate the limiting blocks, eliminating the need for mutual abutment and docking between the side protective plates, thus improving construction efficiency.

[0019] 4. Based on the foregoing, at least one of the side guards in this application has a mounting slot on the side of the plate away from the bottom guard plate for mounting warning elements. This allows for the installation of warning lights or reflective strips via the mounting slot, thereby improving the warning effect and ensuring construction safety.

[0020] 5. Based on the foregoing, the side guard plate of this application has a plate structure with a gradually changing width, and its wider bottom end is rotatably connected to the bottom guard plate. The bottom guard plate has a square plate structure, and there are four side guard plates. The four side guard plates are rotatably installed on the four sides of the bottom guard plate. The four side guard plates rotate along the bottom guard plate towards the opening and abut against each other to form a tower-like closed protective state. When the safety device of this application is implemented, the side guard plates close into a tower-like structure, which has good structural stability and is easy for personnel to rotate. In particular, when disarming, personnel only need to be on the side and push the side guard plate away from the opening. Under its own weight, the side guard plate flips outward in an arc in the air, which is convenient to operate and has high safety.

[0021] 6. Based on the foregoing, the side guard plate of this application is a frame structure with a hollowed-out panel. This reduces the weight of the side guard plate and facilitates operation. Furthermore, the hollowed-out frame structure reduces wind resistance, making it suitable for outdoor environments and preventing the safety device from tipping over due to high wind resistance in strong winds, thus improving operational stability. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the safety device for protecting the piling machine opening in this embodiment (closed protection state).

[0023] Figure 2 This is a schematic diagram of the structure of the safety device for protecting the piling machine opening in this embodiment (in a flat state). Detailed Implementation

[0024] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.

[0025] Please see Figures 1-2 This embodiment discloses a safety device for protecting the opening of a pile driver tunnel, including a bottom protective plate 1 and four side protective plates 2. The bottom plate is fitted onto the outside of the tunnel opening, and the four side protective plates are rotatably installed on the bottom protective plate. The bottom protective plate has a square plate structure, and the side protective plates have a plate structure with a gradually changing width, with the wider end of the side protective plates rotatably connected to the bottom protective plate. The four side protective plates rotate along the bottom protective plate towards the tunnel opening and abut against each other to form a tower-like closed protective state. They also rotate along the bottom protective plate away from the tunnel opening and are located on the same plane as the bottom protective plate to form a flat state. In addition, one of the four side protective plates in this embodiment has a mounting groove installed on the top plate for installing a warning light or reflective ribbon.

[0026] The pile driver opening protection safety device in this embodiment also includes a locking component to restrict the side guard plate from rotating away from the opening when the protection is closed.

[0027] Furthermore, in this embodiment, the locking component is a connecting buckle 4; there are two of them. The connecting buckle is installed on the side guard plate, and one end of it is rotatably installed on the side plate of the side guard plate away from the bottom guard plate. The other end is provided with a limiting groove to form a locking end. When the four side guard plates are in the closed protective state, each of the two opposite sets of side guard plates is equipped with a connecting buckle. The connecting buckle is locked in the plate of the other side guard plate opposite to the side guard plate where the connecting buckle is located through the limiting groove, so as to restrict the two side guard plates from rotating away from the opening.

[0028] In addition, four limiting components 3 are provided at intervals on the bottom protective plate in this embodiment; the limiting components include mounting frames and limiting blocks; the mounting frames are fixedly installed at the four corners of the bottom protective plate, and the mounting frames away from the bottom protective plate are fixedly installed with limiting blocks, and the limiting blocks are located on the rotation trajectory of the side protective plate to restrict the side protective plate from rotating towards the opening.

[0029] In this embodiment, the side guard plate is a hollow frame structure made of welded steel bars, and the bottom guard plate is also a frame structure made of welded steel bars.

[0030] Working Principle: Before using the pile driver opening protection safety device in this embodiment, the construction personnel first determine the dimensions of the bottom and side protection plates according to the dimensions of the pile driver opening. Then, the bottom and side protection plates are fabricated by welding steel bars, and then assembled. Next, based on the closed state of the side protection plates, the installation positions of the limiting component mounting bracket and the limiting block are determined, as well as the distance between the two opposite side protection plates, to determine the dimensions of the connecting buckle. Then, the limiting component and the connecting buckle are fabricated and installed.

[0031] In this embodiment, the safety device for protecting the piling machine opening is first installed at the opening to be protected using hoisting equipment by directly fitting the bottom protective plate onto the outside of the opening. In the protected state, the four side protective plates abut against each other, forming a tower structure. Opposite pairs of side protective plates are locked together by connecting clips. In this state, both vertical and horizontal protection are provided for the piling machine opening, and warning lights or reflective strips are installed in the mounting slots at the top of the side protective plates. When placing the reinforcing cage or pouring concrete, the safety device is released by releasing the connecting clips. Because the device opens flat, the side protective plates flip outwards in an arc in the air, allowing personnel to actively push the side protective plates away from the opening from the side. Next, the reinforcing cage or protective reinforcement is lowered. After placing the reinforcing cage or finishing the pouring, the device is closed again. This closing process establishes the protection, eliminating any gaps in protection.

[0032] The embodiments of the present invention have been described in detail above. However, the present invention is not limited to the above embodiments. For those skilled in the art, after learning the contents of the present invention, several equivalent changes and substitutions can be made without departing from the principle of the present invention. These equivalent changes and substitutions should also be considered to fall within the protection scope of the present invention.

Claims

1. A safety device for protecting the entrance of a pile driver, comprising a bottom protective plate and several side protective plates, characterized in that: The bottom protective plate is fitted onto the outside of the opening, and several side protective plates are rotatably installed on the bottom protective plate; the several side protective plates rotate along the bottom protective plate toward the opening and abut against each other to form a closed protective state, and rotate along the bottom protective plate toward the direction away from the opening and are located on the same plane as the bottom protective plate to form a flat state.

2. The safety device for protecting the entrance of a pile driver as described in claim 1, characterized in that: The pile driver opening protection safety device also includes a locking component to restrict the side guard plate from rotating away from the opening when the protection is closed.

3. The safety device for protecting the entrance of a pile driver as described in claim 2, characterized in that: The locking component is a connecting buckle; the connecting buckle is installed on the side guard plate, and one end of it is rotatably installed on the side plate of the side guard plate away from the bottom guard plate, and the other end is provided with a limiting groove to form a locking end; when several side guard plates are in the closed protective state, the connecting buckle is locked on the plate of another side guard plate opposite to the side guard plate where the connecting buckle is located through the limiting groove, so as to restrict the two side guard plates from rotating away from the opening.

4. The safety device for protecting the entrance of a pile driver as described in claim 3, characterized in that: The number of connecting clips is several.

5. A safety device for protecting the entrance of a pile driver as described in claim 1, characterized in that: The bottom protective plate is provided with a number of limiting components at intervals; the limiting components include a mounting frame and a limiting block; the mounting frame is fixedly installed on the bottom protective plate, and the limiting block is fixedly installed on the frame away from the bottom protective plate, and the limiting block is located on the rotation trajectory of the side protective plate to restrict the side protective plate from rotating towards the opening.

6. A safety device for protecting the entrance of a pile driver as described in claim 1, characterized in that: At least one of the side guards has a mounting slot on the side of the panel away from the bottom guard for mounting warning elements.

7. A safety device for protecting the entrance of a pile driver as described in claim 1, characterized in that: The side guard plate has a plate structure with a gradually changing width, and its bottom, wider end is rotatably connected to the bottom guard plate.

8. A safety device for protecting the entrance of a pile driver as described in claim 7, characterized in that: The bottom protective plate is a square plate structure, and there are four side protective plates. The four side protective plates are rotatably installed on the four sides of the bottom protective plate. The four side protective plates rotate along the bottom protective plate towards the opening and abut against each other to form a tower-like closed protective state.

9. A safety device for protecting the entrance of a pile driver as described in claim 1, characterized in that: The side guard plate is a frame structure with a hollowed-out plate body.

10. A safety device for protecting the entrance of a pile driver as described in claim 1, characterized in that: The bottom and side guards are made of steel.