Tamping tool for photovoltaic support pile foundation hole

By designing a detachable tamping tool to tamp the photovoltaic support pile foundation holes, the problems of irregular pile foundation holes and collapse were solved, improving the stability of the pile foundation structure and construction efficiency.

CN224161054UActive Publication Date: 2026-04-24WUHAN 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
2026-04-24

AI Technical Summary

Technical Problem

The lack of effective manual tools in the existing technology for compacting the holes of photovoltaic support piles leads to irregular hole shapes, internal collapse or soil detachment, affecting the strength and quality of the pile structure.

Method used

A compaction tool was designed, comprising a grip, a main rod, and a detachable ramming section. The ramming section is equipped with a counterweight cavity and a counterweight block. The bottom and side walls of the pile foundation hole are compacted by pushing the ramming section with the main rod held in hand. The main rod can be disassembled into multiple unit rods for easy carrying.

Benefits of technology

It enables rapid compaction of pile foundation holes, ensuring the stability of the pile foundation structure. The tool is detachable and easy to carry, adaptable to different pile foundation hole diameters, and improves construction efficiency and pile foundation quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a tamping tool for a photovoltaic support pile foundation hole. The tamping tool comprises a holding part, a main rod and an earth ramming part, the holding part is arranged at the upper end of the main rod, the earth ramming part is detachably installed at the lower end of the main rod, the earth ramming part is a cylinder, and the diameter of the earth ramming part is matched with the inner diameter of a pile foundation hole to be tamped or smaller than the inner diameter of the pile foundation hole to be tamped. The earth ramming part is used for extending into a to-be-rammed pile foundation hole so as to ramming the hole bottom and the hole side wall of the pile foundation hole; a balance weight cavity is formed in the rammed earth part, and a balance weight block is arranged in the balance weight cavity. According to the tamping tool for the pile foundation hole of the photovoltaic support, a constructor can hold the tool by hand to tamp the pile foundation hole, the weight of the tamping part can be changed according to needs, the tool can be detached so as to be convenient to carry and carry, or the tamping part with the corresponding diameter can be correspondingly replaced according to the diameter of the pile foundation hole, and the tamping tool is convenient and flexible to use.
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Description

Technical Field

[0001] This utility model relates to the field of pile foundation construction technology, specifically to a compaction tool for photovoltaic support pile foundation holes, wherein the pile foundation holes are used to form pile foundations that can fix mountain photovoltaic supports. 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, during the excavation of pile foundations, in order to ensure the regular shape of the pile foundation hole and prevent soil clods from falling off the inner wall of the pile foundation hole and causing soil clods to mix with concrete, so as to ensure the strength and quality of the pile foundation structure, the construction workers often need to further compact the pile foundation hole after excavation to avoid the collapse of the pile foundation hole or the soil falling off the inner wall of the pile foundation hole.

[0005] Currently, there are no existing technologies that allow construction workers to manually operate tools to compact pile foundation holes. Utility Model Content

[0006] This utility model provides a compaction tool for photovoltaic support pile foundation holes. Construction workers can hold the tool to compact the pile foundation holes. The tool is detachable for easy carrying and transportation, or the compaction part of the corresponding diameter can be replaced according to the diameter of the pile foundation hole, making it convenient and flexible to use.

[0007] To achieve the above-mentioned technical objectives, this utility model provides a compaction tool for photovoltaic support pile foundation holes. The compaction tool includes a gripping part, a main rod, and a ramming part. The gripping part is located at the upper end of the main rod, and the ramming part is detachably installed at the lower end of the main rod. The ramming part is a cylinder, and its diameter is matched with or smaller than the inner diameter of the pile foundation hole to be compacted. The ramming part is used to extend into the pile foundation hole to compact the bottom and sidewalls of the hole. The ramming part has a counterweight cavity, and a counterweight block is provided in the counterweight cavity.

[0008] The preferred technical solution of this utility model is as follows: the internal space of the rammed earth part includes an upper counterweight area and a lower structural reinforcement area. The counterweight cavity is opened in the counterweight drive and the cavity opening faces upward. The counterweight block is embedded into the counterweight cavity from the cavity opening and fixed by bolts. The structural reinforcement area is distributed with multiple reinforcing ribs.

[0009] The preferred technical solution of this utility model is as follows: the main rod includes multiple unit rods, each unit rod has a threaded hole axially opened at its upper end and a first threaded end integrally provided at its lower end for connecting with the threaded hole. The first threaded end is provided with an external thread adapted to the threaded hole, and the corresponding threads between adjacent unit rods are detachably connected.

[0010] The preferred technical solution of this utility model is as follows: a connecting hole for the main rod is provided at the center of the rammed earth section, and a threaded connecting part is provided at the lower part of the connecting hole. The connecting hole extends through the counterweight area to the structural reinforcement area, and the threaded connecting part is located at the center of the structural reinforcement area. The lower end of the main rod is provided with an external thread adapted to the threaded connecting part. The main rod is inserted into the connecting hole and threadedly connected to the threaded connecting part.

[0011] The preferred technical solution of this utility model is as follows: the counterweight is a sector-shaped block; a threaded connection hole is radially provided on the counterweight; a stepped through hole is correspondingly provided on the side wall of the rammed earth part to mate with the threaded connection hole; the bolt passes through the stepped through hole and engages with the threaded hole to fix the counterweight in the rammed earth part; and the nut end of the bolt is recessed into the stepped through hole.

[0012] The preferred technical solution of this utility model is that the reinforcing ribs are distributed laterally in the structural reinforcement area.

[0013] The preferred technical solution of this utility model is as follows: the gripping part is a rod body, and a second screw end is vertically arranged in the middle of the gripping part, and the external thread on the second screw end matches the threaded hole on the unit rod.

[0014] The beneficial effects of this utility model are:

[0015] (1) Construction workers can hold the handle and push the rammed part with force through the main rod, so that the rammed part can quickly hit the bottom wall of the pile hole, thereby compacting and pressing the bottom soil of the pile hole; in addition, because the direction of manual force application is not precise, while the rammed part hits and squeezes the bottom of the pile hole, its side wall is simultaneously squeezed and contacted with the side wall of the pile hole, thereby compacting the side wall of the pile hole.

[0016] (2) The entire tool of this utility model can be disassembled into relatively small parts for easy handling and carrying; and the ramming part can be replaced according to the diameter of the pile hole, making it flexible to use. Attached Figure Description

[0017] 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.

[0018] Figure 1 This is an overall structural diagram of the compaction tool in this embodiment;

[0019] Figure 2 This is a cross-sectional view of the overall structure of the compaction tool in this embodiment;

[0020] Figure 3 for Figure 2 A magnified view of a section at point A in the middle;

[0021] In the figure: 1-Holding part, 11-Second screw end; 2-Main rod, 21-Unit rod, 22-First screw end; 3-Compacted soil part, 31-Counterweight cavity, 32-Threaded connection part, 33-Bolt, 34-Stepped through hole, 35-Reinforcing rib; 4-Counterweight block. Detailed Implementation

[0022] 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.

[0023] The embodiment provides a compaction tool for photovoltaic support pile foundation holes, such as... Figures 1 to 3 As shown, a compaction tool for photovoltaic support pile foundation holes includes a gripping part 1, a main rod 2, and a ramming part 3. The gripping part 1 is located at the upper end of the main rod 2, and the ramming part 3 is detachably installed at the lower end of the main rod 2. The ramming part 3 is a cylinder, and its diameter matches or is smaller than the inner diameter of the pile foundation hole to be compacted. The ramming part 3 is used to extend into the pile foundation hole to compact the bottom and sidewalls of the hole. The ramming part 3 has a counterweight cavity 31, and a counterweight block 4 is provided in the counterweight cavity to adjust the weight of the ramming part 3. To facilitate the design of the counterweight cavity, the ramming part 3 is designed as a hollow cavity, with the hollow area being the counterweight cavity 31. The opening of the counterweight cavity 31 is located on the top surface of the ramming part 3, and the counterweight block 4 is inserted into the counterweight cavity 31 from the opening of the counterweight cavity 31 and fixed by bolts 33.

[0024] Construction workers can insert or remove the counterweight 4 into the hollow cylinder through the cavity opening according to actual needs. Furthermore, to prevent the counterweight 4 from falling out of the opening 31, the counterweight 4 is a fan-shaped block. The outer surface of the counterweight 4 has the same shape as the inner circumferential surface of the rammed earth section 3. The counterweight 4 also has horizontally extending threaded holes on its outer surface. The side wall of the rammed earth section 3 has stepped through holes 34. Construction workers use bolts 33, passing them through the stepped through holes 34 and threadedly inserting them into the threaded holes on the counterweight 4, and further tightening the bolts 33, to ensure the counterweight 4 is seamlessly and tightly fixed to the inner wall of the rammed earth section 3. In this embodiment, the nut end of the bolt 33 can also be sunk into the stepped through hole 34 so as not to protrude from the outer surface of the rammed earth section 3, thus preventing the bolt 33 from scraping the inner wall of the pile hole and scraping off soil.

[0025] In other embodiments, a counterweight 4 may also have two or more threaded holes, and a counterweight 4 may be fixedly connected to the rammed earth part 3 by two or more bolts 33. In addition, the number of counterweights 4 may be two, three or even more.

[0026] Further, please refer to Figure 3 In this embodiment, if the counterweight 4 completely fills the internal space of the rammed earth section 3, the construction workers will be unable to perform the pile foundation hole compaction operation because the rammed earth section 3 will be too heavy; however, if the counterweight 4 does not fill the internal space of the rammed earth section 3, since the rammed earth section 3 is a hollow cylinder, the cylinder wall in its cavity area is at risk of deformation when it hits the hole wall. Therefore, the upper half of the internal space of the rammed earth section 3 is the counterweight area and the lower half is the structural reinforcement area. The counterweight 4 is only set in the counterweight area. Several reinforcing ribs 35 are provided in the structural reinforcement area. The reinforcing ribs 35 are distributed laterally in the structural reinforcement area. Both ends of the reinforcing ribs 35 are fixedly connected to the inner wall of the rammed earth section 3, or one end of the reinforcing rib 35 is fixedly connected to the bolted part 32 and the other end is fixedly connected to the inner wall of the rammed earth section 3. In this way, the rammed earth section 3 has a relatively large weight that is suitable for construction workers to lift for ramming operations, and the cylinder wall in the cavity area of ​​the rammed earth section 3 can be supported by the reinforcing ribs 35 to effectively avoid impact deformation.

[0027] To facilitate the transport and carrying of this earth-raking tool in mountainous terrain, such as Figure 2As shown, in this embodiment, the main rod 2 includes multiple unit rods 21, each unit rod 21 having a length of 60 mm. Each unit rod 21 has an axially threaded hole at its upper end and a first threaded end 22 integrally formed at its lower end for connection with the threaded hole. The first threaded end 22 has an external thread adapted to the threaded hole, and adjacent unit rods 21 are detachably connected by corresponding threads. The rammed earth section 3 has a connecting hole for the main rod 2 at its center, and a threaded connection part 32 is provided below the connecting hole. The connecting hole extends through the counterweight area to the structural reinforcement area, and the threaded connection part 32 is located at the center of the structural reinforcement area. The lower end of the main rod 2 has an external thread adapted to the threaded connection part 32. The main rod 2 is inserted into the connecting hole and threadedly connected to the threaded connection part 32. The gripping part 1 is a rod body, and a second threaded end 11 is vertically arranged in the middle of the gripping part 1. The external thread on the second threaded end 11 matches the threaded hole on the unit rod 21.

[0028] When multiple unit rods 21 are threaded together, the uppermost threaded hole of the uppermost unit rod 21 is the uppermost threaded hole of the main rod 2, which is threaded to the second threaded end 11. The lowermost first threaded end 22 of the lowermost unit rod 21 is the lower end of the main rod 2, and the external thread on the outer circumference of the first threaded end 22 is the external thread on the lower end of the main rod 2. In this way, construction personnel can unscrew and disassemble the main rod 2 into multiple unit rods 21 for easy carrying and transportation.

[0029] The working process of this utility model is as follows: the construction personnel can manually connect the holding part 1, the main rod 2, and the ramming part 3 to each other by thread to assemble them, and then hold the holding part 1 and push the entire ramming tool into the pile hole with force so that the lower end face of the ramming part 3 hits the bottom of the pile hole with great force to further ram the bottom of the pile hole; moreover, if there is a proper deviation in the direction of the force applied manually, or if the construction personnel actively swing the main rod 2 left and right, the side wall of the ramming part 3 can also hit the side wall of the pile hole appropriately to further ram the side wall of the pile hole.

[0030] Anything not mentioned above applies to existing technologies.

[0031] 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 compaction tool for photovoltaic support pile foundation holes, characterized in that: The compaction tool includes a grip (1), a main rod (2), and a ramming part (3). The grip (1) is located at the upper end of the main rod (2), and the ramming part (3) is detachably installed at the lower end of the main rod (2). The ramming part (3) is a cylinder with a diameter that matches or is smaller than the inner diameter of the pile hole to be compacted. The ramming part (3) is used to extend into the pile hole to compact the bottom and sidewalls of the pile hole. The ramming part (3) is provided with a counterweight cavity (31) and a counterweight block (4) is provided in the counterweight cavity.

2. The compaction tool for photovoltaic support pile foundation holes according to claim 1, characterized in that: The internal space of the rammed earth section (3) includes an upper counterweight area and a lower structural reinforcement area. The counterweight cavity (31) is opened in the counterweight drive and the cavity opening faces upward. The counterweight block (4) is inserted into the counterweight cavity (31) from the cavity opening and is fixed by bolts (33). The structural reinforcement area is distributed with multiple reinforcing ribs (35).

3. A compaction tool for photovoltaic support pile foundation holes according to claim 1 or 2, characterized in that: The main rod (2) includes multiple unit rods (21). Each unit rod (21) has a threaded hole axially opened at its upper end and a first threaded end (22) integrally provided at its lower end for connection with the threaded hole. The first threaded end (22) is provided with an external thread adapted to the threaded hole. The corresponding threads of adjacent unit rods (21) can be detachably connected.

4. A compaction tool for photovoltaic support pile foundation holes according to claim 2, characterized in that: The rammed earth section (3) has a connecting hole for the main rod (2) at its center, and a threaded connection part (32) is provided at the bottom of the connecting hole. The connecting hole extends through the counterweight area to the structural reinforcement area, and the threaded connection part (32) is located at the center of the structural reinforcement area. The lower end of the main rod (2) is provided with an external thread that is adapted to the threaded connection part (32). The main rod (2) is inserted into the connecting hole and threadedly connected to the threaded connection part (32).

5. A compaction tool for photovoltaic support pile foundation holes according to claim 2, characterized in that: The counterweight (4) is a fan-shaped block; a threaded connection hole is radially provided on the counterweight (4), and a stepped through hole (34) corresponding to the threaded connection hole is provided on the side wall of the rammed earth part (3). The bolt (33) passes through the stepped through hole (34) and is connected to the threaded connection hole to fix the counterweight (4) in the rammed earth part (3), and the nut end of the bolt (33) is recessed into the stepped through hole (34).

6. A compaction tool for photovoltaic support pile foundation holes according to claim 2, characterized in that: The reinforcing ribs (35) are distributed laterally in the structural reinforcement area.

7. A compaction tool for photovoltaic support pile foundation holes according to claim 3, characterized in that: The gripping part (1) is a rod body, and a second screw end (11) is vertically arranged in the middle of the gripping part (1). The external thread on the second screw end (11) matches the threaded hole on the unit rod (21).