Slag removing tool for pile foundation hole

By designing a tool for cleaning slag from pile foundation holes, and utilizing a traction clamping mechanism and a comb-tooth structure, the problem of cleaning stones from pile foundation holes in mountainous photovoltaic power stations was solved, ensuring the depth of the pile foundation holes and the quality of the concrete, and improving the stability of the photovoltaic support structure.

CN224259474UActive Publication Date: 2026-05-19WUHAN SURVEYING GEOTECHN RES INST OF MCC
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WUHAN SURVEYING GEOTECHN RES INST OF MCC
Filing Date
2025-05-14
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

During the construction of pile foundation holes for mountain photovoltaic power stations, stones and soil blocks can easily fall into the pile foundation holes, causing the pile foundation holes to be unable to be dug deeper or the strength of the concrete pile foundation to be reduced, thus affecting the stability of the photovoltaic support.

Method used

A tool for cleaning slag from pile foundation holes was designed, including an installation rod, an extension rod, a first clamping plate, and a second clamping plate. The tool effectively cleans slag through a traction clamping mechanism. The clamping and loosening of the clamping plates are controlled by the forward and reverse rotation of the traction rod. The tool also incorporates comb teeth and hook teeth to improve cleaning efficiency.

Benefits of technology

This technology enables efficient removal of stones from pile foundation holes, ensuring that the holes can be excavated to the predetermined depth, thereby improving the quality of concrete pile foundations and the stability of photovoltaic supports.

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Abstract

The utility model provides a slag removing tool for a pile foundation hole. The slag removal tool comprises a mounting rod, an extension rod, a first clamping plate and a second clamping plate, the first clamping plate and the second clamping plate are oppositely arranged and hinged to the mounting rod, and traction clamping mechanisms are arranged between the mounting rod and the first clamping plate and between the mounting rod and the second clamping plate. The traction clamping mechanism comprises a traction rod, a first pull rope, a second pull rope and two guide rollers symmetrically arranged at the bottom end of an extension rod; the guide rollers are rotatably mounted at the bottom of the extension rod, one ends of the first pull rope and the second pull rope are fixed to the first clamping plate and the second clamping plate respectively, and the other ends of the first pull rope and the second pull rope surround the corresponding guide rollers, extend into the extension rod, extend to the traction hole along the extension rod and penetrate out of the traction hole to be fixedly wound on the traction rod. According to the pile foundation hole clamping and cleaning device, stones in a pile foundation hole can be conveniently clamped, the stones are prevented from falling off in the clamping and cleaning process, and the cleaning efficiency of the pile foundation hole is improved.
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Description

Technical Field

[0001] This utility model relates to the field of pile foundation construction technology, specifically to a pile foundation hole cleaning tool, whose pile foundation hole is used to form a pile foundation that can fix a mountain photovoltaic support. Background Technology

[0002] When photovoltaic power plants are located in mountainous areas, it is often necessary to consider the integration of agriculture and photovoltaics. Therefore, the height of photovoltaic modules above the ground is mostly more than 2 meters, and the photovoltaic support structure mostly adopts a single-column support scheme.

[0003] Based on the single-column support scheme, since mountain photovoltaic power station projects also need to consider a large wind pressure correction coefficient according to the specifications, in order to ensure that the photovoltaic support can stand stably, the existing technology will also adopt the pile foundation construction scheme. That is, first dig the pile foundation hole at the installation position of the photovoltaic support, then pour concrete and insert the lower end of the photovoltaic support into the concrete. After the concrete solidifies to form the pile foundation, the photovoltaic support can be effectively fixed.

[0004] However, due to the geological conditions of the mountainous area, where the underground is a mixture of soil and rocks, rocks and soil often fall into the pile foundation hole during the excavation process. If larger rocks that fall into the pile foundation hole are not removed in time before the predetermined depth is reached, they will block the bottom of the pile foundation hole, preventing it from being dug deeper. After the predetermined depth is reached, the rocks (regardless of size) that fell into the pile foundation hole will accumulate at the bottom, resulting in a decrease in the strength of the subsequently poured concrete pile foundation (the actual depth of the pile foundation underground does not reach the predetermined depth, and the concrete is mixed with rocks), making the photovoltaic support structure prone to tipping over. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a tool for cleaning slag from pile foundation holes. The tool has a simple structure and is easy to operate. Construction workers can use the tool to effectively clean stones and soil debris from pile foundation holes, thereby preventing stones and gravel from affecting the quality of the pile foundation.

[0006] To solve the above-mentioned technical problems, this utility model provides a tool for cleaning slag from pile foundation holes. The tool includes an installation rod, an extension rod, a first clamping plate, and a second clamping plate. The extension rod is perpendicular to the installation rod and fixedly connected to the middle of the installation rod. The first clamping plate and the second clamping plate are opposite to each other and respectively hinged to the installation rod. A traction clamping mechanism is provided between the installation rod and the first and second clamping plates. The traction clamping mechanism includes a traction rod, a first pull rope, a second pull rope, and two guide rollers symmetrically arranged at the bottom of the extension rod. The extension rod is a hollow rod body with a traction hole in the upper middle part. The traction rod is rotatably installed on the extension rod near the traction hole. The guide rollers are rotatably installed at the bottom of the extension rod. One end of the first pull rope and the second pull rope are respectively fixed to the first clamping plate and the second clamping plate. The other ends of the two pull ropes pass around the corresponding guide rollers and extend into the extension rod, extending along the extension rod to the traction hole, and then passing out of the traction hole and fixedly wrapped around the traction rod.

[0007] The preferred technical solution of this utility model is as follows: the traction rod can rotate forward and reverse. When the traction rod rotates forward, the first pull rope and the second pull rope tighten and wrap around the traction rod, and the first clamping plate and the second clamping plate are in a clamped state. When the traction rod rotates in reverse, the first pull rope and the second pull rope loosen, and the first clamping plate and the second clamping plate are in a relaxed state.

[0008] The preferred technical solution of this utility model is as follows: the traction rod is located at the top of the extension rod, and the traction hole is located at a position where the extension rod is lower than the traction rod; a gripping rod is also provided on the upper part of the extension rod, and the gripping rod is fixedly installed on the extension rod and its position is opposite to the traction rod.

[0009] The preferred technical solution of this utility model is as follows: the bottom end of the extension rod passes through the middle of the mounting rod, and two mounting brackets are symmetrically provided at the end of the extension rod protruding part. Two guide rollers are respectively rotatably mounted on the two mounting brackets, and the rotation direction of the two guide rollers is consistent with the traction direction of the first pull rope and the second pull rope.

[0010] The preferred technical solution of this utility model is as follows: the lower ends of the first clamping plate and the second clamping plate are both provided with comb teeth, the comb teeth at the lower end of the first clamping plate and the comb teeth at the lower end of the second clamping plate are also arranged opposite to each other, and the comb teeth of both clamping plates are inclined towards the direction of the vertical center line of the mounting rod; the rack structure of the comb teeth at the lower end of the first clamping plate is provided with a gap between the rack structures of the comb teeth at the lower end of the second clamping plate.

[0011] The preferred technical solution of this utility model is as follows: the other ends of the first pull rope and the second pull rope are respectively located in the upper middle part of the opposite surfaces of the first clamping plate and the second clamping plate.

[0012] The preferred technical solution of this utility model is that both the first clamping plate and the second clamping plate are arc-shaped plates that fit into the inner wall of the pile foundation hole.

[0013] The preferred technical solution of this utility model is that both the first pull rope and the second pull rope are steel wire ropes.

[0014] The preferred technical solution of this utility model is as follows: the lower end of the comb teeth of the first clamping plate and the second clamping plate is also symmetrically provided with hook teeth, and both hook teeth are inclined towards the middle of the mounting rod.

[0015] The beneficial effects of this utility model are:

[0016] (1) When this utility model is used, the construction personnel can twist the traction rod so that the two pull ropes are wound around the traction rod at the same time, thereby causing the first pull rope to pull the first clamping plate and the second pull rope to pull the second clamping plate, so that the first clamping plate and the second clamping plate cooperate with each other to clamp the stone. The overall operation is simple and convenient.

[0017] (2) The present invention also provides comb teeth at the lower end of the first clamping plate and the second clamping plate, and sets the two comb teeth in staggered alignment, so that when the first clamping plate and the second clamping plate are set into a minimal arc plate or straight plate structure, the first clamping plate and the second clamping plate can still close to each other and rotate to the position of cross-tightening, so as to effectively retain the stone fragments between the two clamping plates, avoid the stones from falling off during the clamping and cleaning process, and improve the cleaning efficiency.

[0018] (3) When the first clamping plate and the second clamping plate are set as a simple arc-shaped plate that fits the shape of the inner wall of the pile hole, the first clamping plate and the second clamping plate can descend to the bottom of the pile hole in a posture that is close to or even equal to the diameter of the pile hole. Attached Figure Description

[0019] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the present invention and, together with the description, serve to explain the principles of the present invention. In these drawings, similar reference numerals are used to denote similar elements. The drawings described below are some embodiments of the present invention, but not all embodiments. Other drawings will be readily available to those skilled in the art based on these drawings without any inventive effort.

[0020] Figure 1 This is an overall structural diagram of the slag removal tool in this embodiment;

[0021] Figure 2 This is a structural diagram of the first clamping plate in this embodiment;

[0022] 1- Mounting rod, 2- Extension rod, 3- Traction rod, 4- First clamping plate, 5- Second clamping plate, 6- First pull rope, 7- Second pull rope, 8- Comb teeth, 9- Hook teeth, 10- Guide roller, 11- Grip rod, 12- Traction hole. Detailed Implementation

[0023] The directional terms such as up, down, left, right, front, back, front, back, top, and bottom mentioned or possibly used in this specification are defined relative to the construction shown in the accompanying drawings. The terms "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively. These are relative concepts and may therefore vary depending on their location and usage. Therefore, these or other directional terms should not be interpreted as restrictive.

[0024] An embodiment provides a tool for cleaning slag from pile foundation holes, see reference. Figure 1 and Figure 2As shown, the system includes a mounting rod 1, an extension rod 2, a first clamping plate 4, and a second clamping plate 5. The extension rod 2 is perpendicular to the mounting rod 1 and fixedly connected to the middle of the mounting rod 1. The first clamping plate 4 and the second clamping plate 5 are opposite to each other and respectively hinged to the mounting rod 1. A traction clamping mechanism is provided between the mounting rod 1 and the first clamping plate 4 and the second clamping plate 5. The traction clamping mechanism includes a traction rod 3, a first pull rope 6, a second pull rope 7, and two guide rollers 10 symmetrically arranged at the bottom end of the extension rod 2. The guide rollers 10 can reduce the scraping between the first pull rope 6 and the second extension rod 2, and between the second pull rope 7 and the second extension rod 2, thereby reducing the wear of the pull ropes. The extension rod 2 is a hollow rod body. The bottom end of the extension rod 2 passes through the middle of the mounting rod 1. Two mounting brackets are symmetrically arranged at the end of the extension rod 2 that protrudes through it. The two guide rollers 10 are rotatably mounted on the two mounting brackets, and the rotation direction of the two guide rollers 10 is consistent with the traction direction of the first pull rope 6 and the second pull rope 7, respectively. A traction hole 12 is provided in the upper middle part of the extension rod 2. The traction rod 3 is rotatably installed on the extension rod 2 near the traction hole 12. The guide roller 10 is rotatably installed at the bottom of the extension rod 2. One end of the first pull rope 6 and the second pull rope 7 are respectively fixed in the upper middle part of the opposite side of the first clamping plate 4 and the second clamping plate 5. The other ends of the two pull ropes pass around the corresponding guide roller 10 and extend into the extension rod 2, extending along the extension rod 2 to the traction hole 12, and then pass out of the traction hole 12 and are fixedly wrapped around the traction rod. The first pull rope 6 passes around the left guide roller 10 to extend into the extension rod 2 and extend upward, and the second pull rope 7 passes around the right guide roller 10 to extend into the extension rod 2 and extend upward, so as to avoid contact with the lower edge of the extension rod 2. The traction rod 3 can rotate forward and backward. When the traction rod 3 rotates forward, the first pull rope 6 and the second pull rope 7 tighten and wrap around the traction rod 3, and the first clamping plate 4 and the second clamping plate 5 are clamped. When the traction rod 3 rotates backward, the first pull rope 6 and the second pull rope 7 loosen, and the first clamping plate 4 and the second clamping plate 5 are relaxed. The traction rod 3 is located at the top of the extension rod 2, and the traction hole 12 is located at a position where the extension rod 2 is lower than the traction rod 3. A gripping rod 11 is also provided on the upper part of the extension rod 2. The gripping rod 11 is fixedly installed on the extension rod 2 and its position is opposite to that of the traction rod 3.

[0025] To address this, when it is necessary to clean the stones and debris from the pile foundation hole, construction workers can hold the traction rod 3 and the holding rod 11 with both hands respectively, and vertically lower the extension rod 2, traction rod 3, first clamping plate 4, and second clamping plate 5 into the pile foundation hole, ensuring that the first clamping plate 4 and second clamping plate 5 reach the bottom of the pile foundation hole. After the lower ends of the first clamping plate 4 and second clamping plate 5 have contacted the bottom of the pile foundation hole, the construction workers can manually twist the traction rod 3 to increase the number of turns of the first pull rope 6 and second pull rope 7 around the traction rod 3, thereby pulling the first clamping plate 4 and second clamping plate 5 towards the middle of the first installation rod 1 to clamp the stones. After the stones are clamped, the construction workers can then pull the second extension rod 2 upwards to pull the first clamping plate 4, second clamping plate 5, and the clamped stones out of the pile foundation hole, thus completing the operation of cleaning the stones from the pile foundation hole.

[0026] In this embodiment, to facilitate the downward movement of the first clamping plate 4 and the second clamping plate 5 within the pile hole, both the first clamping plate 4 and the second clamping plate 5 are configured as arc-shaped plates that conform to the inner wall of the pile hole. Furthermore, during the lowering of the first clamping plate 4 and the second clamping plate 5, the first pull rope 6 and the second pull rope 7 are both in a slack state, allowing the first clamping plate 4 and the second clamping plate 5 to maintain an automatic hanging posture. Thus, the first clamping plate 4 and the second clamping plate 5 can move within the pile hole in a posture that conforms to the inner wall, facilitating the removal of a large amount of stones and gravel fragments at once. Moreover, as the first clamping plate 4 and the second clamping plate 5 extend downwards to the bottom of the pile hole, they can adaptively swing inwards when encountering protrusions in the hole wall to facilitate their reaching the bottom of the pile hole.

[0027] In this embodiment, the lower end of the first pull rope 6 is fixedly connected to the upper region of the right side wall of the first clamping plate 4, and the lower end of the second pull rope 7 is fixedly connected to the upper half region of the left side wall of the second clamping plate 5, so as to prevent the upper end of the clamped stone from hitting the first pull rope 6 and / or the second pull rope 7.

[0028] It should be noted that: although Figure 2 Although not shown, it can be understood that in this embodiment, metal rings are welded to the upper region of the right side wall of the first clamping plate 4 and the upper region of the left side wall of the second clamping plate 5, respectively, for the lower end of the first pull rope 6 and the lower end of the second pull rope 7 to be fastened and fixed.

[0029] Further, please refer to Figure 1 and Figure 2To further clean the gravel and debris at the bottom of the pile hole, the lower ends of both the first clamping plate 4 and the second clamping plate 5 are provided with comb-tooth portions 8. Each comb-tooth portion 8 includes several toothed structures equidistantly arranged along the lower end of the first clamping plate 4. The comb-tooth portions 8 at the lower ends of the first clamping plate 4 and the second clamping plate 5 are also arranged opposite each other, and both comb-tooth portions 8 are inclined towards the vertical center line of the mounting rod 1. The toothed structures of the comb-tooth portions 8 at the lower ends of the first clamping plate 4 are provided with gaps between the toothed structures of the comb-tooth portions 8 at the lower ends of the second clamping plate 5. When both the first clamping plate 4 and the second clamping plate 5 are pulled together, they can also intersect at the two comb-tooth portions 8, further forming a shielding structure between the lower ends of the first clamping plate 4 and the second clamping plate 5 to restrict the gravel and debris from falling downwards, thereby cleaning the gravel and debris.

[0030] In this embodiment, the lower ends of the comb teeth 8 of the first clamping plate 4 and the second clamping plate 5 are also symmetrically provided with hook teeth 9. Both hook teeth 9 are inclined towards the middle of the mounting rod 1. The hook teeth 9 are strip-shaped blocks extending horizontally towards the middle of the first mounting rod 1. When the lower ends of the first clamping plate 4 and the second clamping plate 5 contact the bottom of the pile hole, and the first clamping plate 4 is pulled by the first pull rope 6 and the second clamping plate 5 is pulled by the second pull rope 7 to close together, the hook teeth 9 can assist the comb teeth 8 in moving the gravel blocks located at the bottom of the pile hole, so that the gravel blocks are piled up and gathered in the middle of the bottom of the pile hole, which makes it convenient for the first clamping plate 4 and the second clamping plate 5 to close and clean.

[0031] It should be noted that, in this embodiment, for ease of operation, both the first pull rope 6 and the second pull rope 7 are steel wire ropes.

[0032] Anything not mentioned above applies to existing technologies.

[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A tool for cleaning slag from pile foundation holes, characterized in that: The slag removal tool includes an installation rod (1), an extension rod (2), a first clamping plate (4), and a second clamping plate (5). The extension rod (2) is perpendicular to the installation rod (1) and fixedly connected to the middle of the installation rod (1). The first clamping plate (4) and the second clamping plate (5) are arranged opposite to each other and respectively hinged to the installation rod (1). A traction clamping mechanism is provided between the installation rod (1) and the first clamping plate (4) and the second clamping plate (5). The traction clamping mechanism includes a traction rod (3), a first pull rope (6), a second pull rope (7), and two guide rollers (10) symmetrically arranged at the bottom end of the extension rod (2). The extension rod (2) is a hollow rod body. A traction hole (12) is provided in the upper middle part of the extension rod (2). The traction rod (3) is rotatably installed on the extension rod (2) near the traction hole (12). The guide roller (10) is rotatably installed at the bottom of the extension rod (2). One end of the first pull rope (6) and the second pull rope (7) are respectively fixed on the first clamp plate (4) and the second clamp plate (5). The other end of the two pull ropes passes around the corresponding guide roller (10) and extends into the extension rod (2). They extend along the extension rod (2) to the traction hole (12) and pass out from the traction hole (12) and are fixedly wrapped around the traction rod.

2. The tool for cleaning slag from pile foundation holes according to claim 1, characterized in that: The traction rod (3) can rotate forward and reverse. When the traction rod (3) rotates forward, the first pull rope (6) and the second pull rope (7) are tightened and wrapped around the traction rod (3), and the first clamping plate (4) and the second clamping plate (5) are clamped. When the traction rod (3) rotates in reverse, the first pull rope (6) and the second pull rope (7) are relaxed, and the first clamping plate (4) and the second clamping plate (5) are relaxed.

3. A tool for cleaning slag from pile foundation holes according to claim 1 or 2, characterized in that: The traction rod (3) is located at the top of the extension rod (2), and the traction hole (12) is located at the position where the extension rod (2) is lower than the traction rod (3); a gripping rod (11) is also provided on the upper part of the extension rod (2), and the gripping rod (11) is fixedly set on the extension rod (2) and its setting position is opposite to the traction rod (3).

4. A tool for cleaning slag from pile foundation holes according to claim 1 or 2, characterized in that: The bottom end of the extension rod (2) passes through the middle of the mounting rod (1). Two mounting brackets are symmetrically provided at the end of the part of the extension rod (2) that passes through. Two guide rollers (10) are rotatably mounted on the two mounting brackets respectively, and the rotation direction of the two guide rollers (10) is consistent with the traction direction of the first pull rope (6) and the second pull rope (7).

5. A tool for cleaning slag from pile foundation holes according to claim 1 or 2, characterized in that: The lower ends of the first clamping plate (4) and the second clamping plate (5) are both provided with comb teeth (8). The comb teeth (8) at the lower end of the first clamping plate (4) and the comb teeth (8) at the lower end of the second clamping plate (5) are also arranged opposite to each other, and the comb teeth (8) of both clamping plates are inclined towards the vertical center line of the mounting rod (1). The rack structure of the comb teeth (8) at the lower end of the first clamping plate (4) is provided with a gap between the rack structure of the comb teeth (8) at the lower end of the second clamping plate (5).

6. A tool for cleaning slag from pile foundation holes according to claim 1 or 2, characterized in that: The other ends of the first pull rope (6) and the second pull rope (7) are located in the upper middle part of the opposite side of the first clamping plate (4) and the second clamping plate (5), respectively.

7. A tool for cleaning slag from pile foundation holes according to claim 1 or 2, characterized in that: Both the first clamping plate (4) and the second clamping plate (5) are arc-shaped plates that fit into the inner wall of the pile foundation hole.

8. A tool for cleaning slag from pile foundation holes according to claim 1 or 2, characterized in that: Both the first pull rope (6) and the second pull rope (7) are steel wire ropes.

9. A tool for cleaning slag from pile foundation holes according to claim 5, characterized in that: The lower ends of the comb teeth (8) of the first clamping plate (4) and the second clamping plate (5) are also symmetrically provided with hook teeth (9), and both hook teeth (9) are inclined toward the middle of the mounting rod (1).