A bored pile lifting device

By using angle steel supports to form a three-dimensional frame and a zoned design for the bored pile lifting device, the problems of high labor intensity, low efficiency, and high cost of existing equipment have been solved, and safety and portability have been improved, making it suitable for the construction needs of small-scale projects.

CN224450123UActive Publication Date: 2026-07-03ROAD & BRIDGE INT CO LTD +1

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ROAD & BRIDGE INT CO LTD
Filing Date
2025-06-26
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

Existing manual pile driving equipment is labor-intensive and inefficient, while electric hoists are costly, complex in structure, and unsuitable for small-scale pile driving projects and temporary construction projects due to their cumbersome installation. The cost does not match the construction needs.

Method used

Angle steel brackets are used to form a three-dimensional frame structure, which is fixed with anchor bolts to form a L-shaped wind brace structure. The design of connecting holes and mounting plates in sections simplifies the installation of drive components. Threaded grooves and fixing bolts are used to improve stability and reduce weight and cost.

Benefits of technology

It improves the safety and portability of the lifting equipment, simplifies the installation process, reduces costs, increases construction efficiency, and adapts to the needs of small projects and temporary construction.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to the field of construction equipment technology and discloses a bored pile lifting device, including angle steel bracket 1, angle steel bracket 2, angle steel bracket 3, and angle steel bracket 4. Angle steel bracket 1 and angle steel bracket 2 are each provided with four sets, angle steel bracket 3 is provided with two sets, and angle steel bracket 4 is provided with four sets. One end of each of the four sets of angle steel bracket 1 is fixedly connected to a connecting body. The top of angle steel bracket 1 is provided with a threaded groove. One side of angle steel bracket 3 is fixedly connected to a connecting frame, and three sets of connecting frames are provided. This invention solves the problems of existing manual bored pile lifting equipment, which generally works by manually operating winches, resulting in high labor intensity and low efficiency. Electric hoists are expensive and have complex structures. For small bored pile projects or temporary construction projects, these devices have problems such as cumbersome installation and cost mismatch with construction needs. This invention enables workers to easily assemble the overall structure and significantly improves the portability of the equipment.
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Description

Technical Field

[0001] This utility model relates to the field of construction equipment technology, specifically a bored pile lifting device. Background Technology

[0002] Manually excavated bored piles are a commonly used technique in building construction. As the building environment becomes more complex and construction techniques become more refined, the technology of manually excavated bored piles is also gradually improving. It is being applied in the construction of complex urban environments, allowing for flexible adjustments to the construction schedule and plans, and is favored by building construction companies. However, some problems still arise in the actual use of existing bored pile lifting devices.

[0003] For example, patent application number CN202123096342.2 discloses a manual bored pile lifting device, including: a frame; the frame includes four columns, with bottom protective components between each pair of columns; a winch fixed to the protective components; a wire rope on the winch; a top protective component located at the upper end of the frame; and a pulley located at the inner top of the frame. The wire rope is connected to a hook via the pulley. This device reduces the mutual interference between the bored pile construction process and other operations. Existing manual bored pile lifting equipment generally operates by manual winches, which results in high labor intensity and low efficiency. Electric hoists are expensive and have complex structures. For small bored pile projects or temporary construction projects, these devices are cumbersome to install and their costs do not match the construction requirements.

[0004] To address the aforementioned problems, a bored pile lifting device is proposed. Utility Model Content

[0005] The purpose of this utility model is to provide a bored pile lifting device. By using this device, the problems of existing manual bored pile lifting equipment, which generally operate by manual winches, are solved. These equipment are characterized by high labor intensity and low efficiency, while electric hoists are expensive and have complex structures. For small bored pile projects or temporary construction projects, these devices are cumbersome to install and their costs do not match the construction needs.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a bored pile lifting device, comprising angle steel bracket one, angle steel bracket two, angle steel bracket three, and angle steel bracket four. Angle steel bracket one and angle steel bracket two are each provided with four sets, angle steel bracket three is provided with two sets, and angle steel bracket four is provided with four sets. One end of each of the four sets of angle steel bracket one is fixedly connected to a connecting body. A threaded groove is provided on the top of angle steel bracket one. A connecting frame is fixedly connected to one side of angle steel bracket three, and three sets of connecting frames are provided.

[0007] Preferably, an anchor bolt is penetrated through the inside of the first thread groove, and the length of the first angle steel bracket is one meter.

[0008] With the design of the above structure, the anchor bolt penetrating through the first thread groove can fix the first angle steel bracket to the ground, ensuring the stability of the bottom of the lifting frame and avoiding displacement during construction; the one-meter-long first angle steel bracket not only meets the construction height requirements of small dug piles but is also convenient for single-person handling, adapting to the convenience requirements of temporary construction scenarios.

[0009] Preferably, the length of the third angle steel bracket is 65 cm, and the length of the connecting frame is 35 cm.

[0010] With the design of the above structure, the combination of the 65-cm-long third angle steel bracket and the 35-cm-long connecting frame forms a support structure with a reasonable ratio, which can not only ensure the bending strength of the middle layer of the lifting frame but also reduce the material consumption by controlling the size and lower the cost; the length of the connecting frame adapts to the installation space requirements of common driving components (such as motors and pulley blocks).

[0011] Preferably, the three groups of the fourth angle steel brackets are arranged on the outside of the second angle steel bracket, and the installation height of the fourth angle steel bracket is one meter.

[0012] With the design of the above structure, the three groups of the fourth angle steel brackets form a "Lv"-shaped wind-resistant brace structure on the outside of the second angle steel bracket, effectively suppressing the bottom horizontal displacement; the one-meter installation height matches the height of the dug pile working surface, which neither affects the earthwork lifting operation nor enhances the torsional resistance of the overall structure.

[0013] Preferably, a connecting hole is opened on one group of the connecting frames, and mounting plates are fixedly connected to the tops of the other two groups of the connecting frames.

[0014] With the design of the above structure, the connecting hole of one group of the connecting frames is used for hoisting lifting components such as pulley blocks and hooks, and the mounting plates of the other two groups of the connecting frames are used for fixing driving devices such as motors and reducers. This zoning design realizes the separation of the "hoisting - driving" functions, facilitating the flexible configuration of equipment according to construction requirements and improving the installation efficiency.

[0015] Preferably, a friction pad is fixedly connected to the top of the mounting plate, and thread grooves two are opened on both the mounting plate and the friction pad.

[0016] With the design of the above structure, the friction pad prevents the driving component from sliding by increasing the contact surface friction. The thread groove two penetrates through the mounting plate and the friction pad, enabling the fixing bolt to lock both at the same time, ensuring the installation stability; this structure avoids the non-detachable problem of traditional welding installation and is convenient for equipment maintenance and component replacement.

[0017] Preferably, the second threaded groove is provided in two sets, and a fixing bolt is detachably provided inside the second threaded groove.

[0018] With the above-mentioned structural design, the two sets of threaded grooves and the fixing bolts form a double-point fixation, which can withstand the vibration load generated by frequent lifting during construction; and significantly improves construction efficiency.

[0019] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0020] 1. This application proposes a bored pile lifting device, which solves the problems of existing manual bored pile lifting equipment, which generally relies on manual winches, resulting in high labor intensity and low efficiency. Electric hoists are also expensive and structurally complex. For small bored pile projects or temporary construction projects, these devices are cumbersome to install and their costs do not match the construction needs. In use, four sets of angle steel brackets are spliced ​​together and welded together to form a square. Angle steel brackets 2 and 3 are installed to form a three-dimensional frame structure with a height of 1.3 meters. Workers can lift the piles through the threaded grooves. The angle steel bracket 1 is fixed with anchor bolts, and three sets of angle steel brackets 4 are set on the outside of angle steel bracket 2, forming a L-shaped structure. This significantly enhances the shear, bending and torsional stiffness of the lifting frame, enabling it to reliably bear the soil transport construction load, suppress bottom horizontal displacement and local instability, and improve the safety of the entire lifting frame. Furthermore, the angle steel structure significantly reduces the overall weight of the device, and the simple and regular structure makes it easy for construction personnel to handle and store. It also facilitates the splicing of the overall structure by the workers, and significantly improves the portability of the equipment.

[0021] 2. The bored pile lifting device proposed in this application solves the problem that existing manual bored pile lifting equipment generally uses a relatively complex connection structure for the installation of drive components, making it inconvenient to remove the drive components according to the actual situation. When installation is required, the guide pulley, lifting pulley block, and hook can be assembled on the connection hole at the top of the connecting frame, and the motor, coupling, brake, and reducer can be installed on the mounting plates of the connecting frame on both sides. Workers can install the drive components through the fixing bolts and the setting of the threaded groove, further improving the stability during installation, realizing the function of making it convenient for workers to install the drive components, and improving work efficiency. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0023] Figure 2 This is a structural diagram of the angle steel bracket and connecting body of this utility model;

[0024] Figure 3 This is a structural diagram of the anchor bolt and threaded groove of this utility model;

[0025] Figure 4 This is a structural diagram of the angle steel bracket and mounting plate of this utility model.

[0026] In the diagram: 1. Angle steel bracket one; 11. Connector; 111. Threaded groove one; 112. Anchor bolt; 2. Angle steel bracket two; 3. Angle steel bracket three; 31. Connecting frame; 32. Connecting hole; 33. Mounting plate; 331. Friction pad; 332. Threaded groove two; 333. Fixing bolt; 4. Angle steel bracket four. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] To further understand the content of this utility model, a detailed description of this utility model will be provided in conjunction with the accompanying drawings.

[0029] Combination Figures 1-4 An excavated pile lifting device includes angle steel bracket 1, angle steel bracket 2, angle steel bracket 3, and angle steel bracket 4. Angle steel bracket 1 and angle steel bracket 2 are each provided in four sets, angle steel bracket 3 is provided in two sets, and angle steel bracket 4 is provided in four sets. One end of each of the four sets of angle steel bracket 1 is fixedly connected to a connecting body 11. The top of angle steel bracket 1 is provided with a threaded groove 111. One side of angle steel bracket 3 is fixedly connected to a connecting frame 31, and three sets of connecting frames 31 are provided.

[0030] The present invention will be further described below with reference to the embodiments.

[0031] Example 1:

[0032] To address the problems of existing manual bored pile lifting equipment, which generally relies on manual winches, resulting in high labor intensity and low efficiency, and the high cost and complex structure of electric hoists, these devices are cumbersome to install and their costs are mismatched with construction needs for small-scale bored pile projects or temporary construction projects. This embodiment discloses the following technical solution, specifically as follows: Figures 1-3As shown, an anchor bolt 112 is installed through the threaded groove 111. The length of the angle steel bracket 1 is one meter, the length of the angle steel bracket 3 is sixty-five centimeters, the length of the connecting frame 31 is thirty-five centimeters, and three sets of angle steel brackets 4 are arranged on the outside of the angle steel bracket 2. The installation height of the angle steel brackets 4 is one meter. In use, the four sets of angle steel brackets 1 are spliced ​​together and welded together through the connecting body 11 to form a square. Through the installation method of the angle steel brackets 2 and 3, a three-dimensional frame structure with a height of 1.3 meters is formed. Workers can access the structure through the threaded groove 111. The anchor bolts 112 are used to fix the angle steel bracket 1, and the three sets of angle steel brackets 4 are set on the outside of the angle steel bracket 2, forming a L-shaped structure. This significantly enhances the shear, bending and torsional stiffness of the lifting frame, enabling it to reliably bear the soil transport construction load of the lifting frame, suppressing bottom horizontal displacement and local instability, and improving the safety of the entire lifting frame. In addition, the angle steel structure greatly reduces the overall weight of the device, and the structure is simple and regular, making it easy for construction personnel to handle and store. It also enables workers to easily assemble the overall structure, while significantly improving the portability of the equipment.

[0033] Example 2:

[0034] To address the issue that existing manually excavated pile lifting equipment typically uses complex connection structures for installing drive components, making it inconvenient to remove the drive components according to actual conditions, this embodiment discloses the following technical solution, specifically as follows: Figure 4 As shown, one set of connecting brackets 31 has connecting holes 32, and the top of the other two sets of connecting brackets 31 is fixedly connected to mounting plates 33. The top of the mounting plates 33 is fixedly connected to friction pads 331. Both the mounting plates 33 and the friction pads 331 have threaded grooves 332. There are two sets of threaded grooves 332. Fixing bolts 333 are detachably installed inside the threaded grooves 332. When installation is required, the guide pulleys, lifting pulley blocks, and hooks can be assembled onto the connecting holes 32 on the top of the connecting brackets 31. The motor, coupling, brake, and reducer can be installed on the mounting plates 33 of the connecting brackets 31 on both sides. Workers can install the drive components through the fixing bolts 333 and the threaded grooves 332, which further improves the stability during installation and makes it convenient for workers to install the drive components, thus improving work efficiency.

[0035] It should be noted that the aforementioned electrical components are equipped with power supplies, and their control methods are existing technologies. To avoid redundancy, they will be described here uniformly. Furthermore, this application is primarily for the protection of mechanical equipment, so the control methods and circuit connections will not be explained in detail herein. In this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art 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 appended claims and their equivalents.

Claims

1. A bored pile lifting device comprising an angle iron support one (1), an angle iron support two (2), an angle iron support three (3), and an angle iron support four (4), characterized by: The first angle steel bracket (1) and the second angle steel bracket (2) are each provided with four sets, the third angle steel bracket (3) is provided with two sets, and the fourth angle steel bracket (4) is provided with four sets. One end of the first angle steel bracket (1) is fixedly connected to a connecting body (11). The top of the first angle steel bracket (1) is provided with a threaded groove (111). One side of the third angle steel bracket (3) is fixedly connected to a connecting frame (31). The connecting frame (31) is provided with three sets.

2. A hole excavation lifting device according to claim 1, characterized in that: Anchor bolts (112) are installed through the inside of the threaded groove (111), and the length of the angle steel bracket (1) is one meter.

3. A hole excavation lifting device according to claim 2, characterized in that: The length of the angle steel bracket (3) is 65 cm and the length of the connecting frame (31) is 35 cm.

4. A hole excavation lifting device according to claim 3, characterized in that: The three sets of angle steel brackets four (4) are set on the outside of angle steel bracket two (2), and the installation height of angle steel bracket four (4) is one meter.

5. A hole excavation lifting device according to claim 4, characterized in that: One set of the connecting brackets (31) has a connecting hole (32), and the top of the other two sets of connecting brackets (31) is fixedly connected to a mounting plate (33).

6. A hole excavation lifting device according to claim 5, characterized in that: The top of the mounting plate (33) is fixedly connected to a friction pad (331), and both the mounting plate (33) and the friction pad (331) are provided with threaded grooves (332).

7. A hole excavation lifting device according to claim 6, characterized in that: The second threaded groove (332) is provided in two sets, and the inside of the second threaded groove (332) is detachably provided with fixing bolts (333).