Screw pile expanding construction mechanism

Abstract

The invention discloses a screw pile expanding construction mechanism, and relates to the technical field of engineering construction. Comprising a screw body, the outer wall of the screw body is fixedly connected with a cleaning structure through a bolt, the cleaning structure comprises a fixing block, the outer wall of the fixing block is fixedly connected with the outer wall of the screw body through a bolt, and the side wall of the fixing block is fixedly connected with a telescopic rod and an electric push rod; the ends, away from the fixing block, of the telescopic rod and the electric push rod are fixedly connected with a scraping structure, the bottom of the scraping structure is fixedly connected with a dust collecting structure, and the scraping structure design of cooperative operation of a cleaning brush and a cleaning scraper blade is adopted; and the cleaning scraper can scrape stubborn mud blocks and concrete residues, and the surface cleanliness of the screw body is ensured through the dual cleaning effect. Meanwhile, due to the elastic attaching design, the cleaning effect is guaranteed, and the screw is prevented from being scratched.

Description

Technical Field

[0001] This invention relates to the field of engineering construction technology, specifically to a screw pile diameter expansion construction mechanism. Background Technology

[0002] In the field of foundation engineering construction, screw piles are widely used in foundation treatment for various projects such as buildings, bridges, and roads due to their significant advantages such as high bearing capacity, excellent construction efficiency, and small settlement deformation. Screw pile diameter expansion construction, as a key process to improve the bearing capacity of the pile, relies on the rotary drilling and diameter expansion action of the screw body to achieve pile formation. The surface condition of the screw body directly affects the construction accuracy, pile quality, and equipment service life.

[0003] However, during actual construction, the screw body inevitably accumulates a large amount of mud, sand, and uncured concrete residue on its outer wall during drilling, diameter expansion, and lifting. Once these residues dry and harden, they increase the screw's rotational resistance, increase equipment energy consumption, and exacerbate wear on the screw and its components, thus shortening the equipment's lifespan. Therefore, to address these problems, improve construction efficiency and quality, and reduce losses, this invention was developed. Summary of the Invention

[0004] To address the shortcomings of existing technologies, the technical solution adopted by this invention is: a screw pile diameter expansion construction mechanism, comprising: a screw body, a cleaning structure fixedly connected to the outer wall of the screw body by bolts, the cleaning structure including a fixing block, the outer wall of the fixing block being fixedly connected to the outer wall of the screw body by bolts, a telescopic rod and an electric push rod fixedly connected to the side wall of the fixing block, a scraping structure fixedly connected to the end of the telescopic rod and the electric push rod away from the fixing block, and a dust collection structure fixedly connected to the bottom of the scraping structure.

[0005] Preferably, the telescopic rods are provided in three sets, and the telescopic rods are arranged in a circular array along the side wall of the fixed block.

[0006] Preferably, the scraping structure includes a support frame, the sidewall of which is fixedly connected to the ends of the telescopic rod and the electric push rod.

[0007] Preferably, a cleaning brush and a cleaning scraper are fixedly connected to the inner wall of the support frame, the cleaning brush and the cleaning scraper are arranged in a ring along the inner wall of the support frame, and the outer walls of the cleaning brush and the cleaning scraper are elastically attached to the outer wall of the screw body.

[0008] Preferably, the dust collection structure includes a connecting block, the top of which is fixedly connected to the bottom of the support frame.

[0009] Preferably, the inner wall of the connecting block is provided with a slide rail, and a dust collection box is slidably connected to the outer wall of the slide rail.

[0010] The beneficial effects of this invention are as follows: 1. This invention employs a cleaning structure with a collaborative scraping mechanism involving a cleaning brush and a cleaning scraper. The cleaning brush efficiently removes surface dust and loose dirt, while the cleaning scraper removes stubborn mud and concrete residue. This dual cleaning action ensures the cleanliness of the screw body surface. Simultaneously, the elastic, close-fitting design, while maintaining cleaning effectiveness, avoids damage to the outer wall structure of the screw body from hard contact, effectively preventing residue adhesion and drying from increasing rotational resistance and accelerating component wear.

[0011] 2. This invention features a dust collection structure with a connecting block fixedly connected to the scraping structure. This structure moves synchronously with the scraping structure, always positioned directly below the cleaning area to precisely collect residue, preventing it from scattering onto the construction site or into pile holes and causing pollution and safety hazards. Furthermore, the dust collection box slides along a rail with the connecting block, employing a pull-out design. After cleaning, the dust collection box can be directly removed for residue removal. Attached Figure Description

[0012] Figure 1 This is the front view of the present invention; Figure 2 This is a schematic diagram of the cleaning structure of the present invention; Figure 3 This is a schematic diagram of the scraping structure of the present invention; Figure 4 This is a schematic diagram of the dust collection structure of the present invention.

[0013] In the diagram: 1. Screw body; 2. Cleaning structure; 21. Fixing block; 22. Telescopic rod; 23. Scraping structure; 24. Electric push rod; 25. Dust collection structure; 231. Support frame; 232. Cleaning brush; 233. Cleaning scraper; 251. Connecting block; 252. Slide rail; 253. Dust collection box. Detailed Implementation

[0014] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the invention to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described to better illustrate the principles and practical application of the invention, and to enable those skilled in the art to understand the invention and design various embodiments with various modifications suitable for a particular purpose.

[0015] Example: Please see Figure 1 - Figure 2This invention provides a technical solution: a screw pile diameter expansion construction mechanism, comprising: a screw body 1, a cleaning structure 2 fixedly connected to the outer wall of the screw body 1 by bolts, the cleaning structure 2 including a fixing block 21, the outer wall of the fixing block 21 being fixedly connected to the outer wall of the screw body 1 by bolts, a telescopic rod 22 and an electric push rod 24 fixedly connected to the side wall of the fixing block 21, a scraping structure 23 fixedly connected to the end of the telescopic rod 22 and the electric push rod 24 away from the fixing block 21, a dust collection structure 25 fixedly connected to the bottom of the scraping structure 23, and three sets of telescopic rods 22 arranged in a circular array along the side wall of the fixing block 21. First, check whether the bolt connection between the fixing block 21 and the screw body 1 is tight to ensure the overall stability of the cleaning structure 2. Then, activate the electric push rod 24, which extends and drives the scraping structure 23 to move along the direction of the screw body 1. The three sets of circularly arrayed telescopic rods 22 extend and retract synchronously to guide the movement and prevent the scraping structure 23 from shifting during movement. After the scraping structure 23 initially contacts the outer wall of the screw body 1, the extension and retraction of the electric push rod 24 is adjusted so that the scraping structure 23 reaches the preset cleaning position. Then, the electric push rod 24 drives the cleaning structure 2 to slide slowly along the axis of the screw body 1 to start the cleaning operation. The telescopic rod 22 always remains in the telescopic state to adapt to the sliding trajectory and ensure the stability of the fit between the scraping structure 23 and the screw body 1.

[0016] Please see Figure 3 The scraping structure 23 includes a support frame 231. The side wall of the support frame 231 is fixedly connected to the ends of the telescopic rod 22 and the electric push rod 24. The inner wall of the support frame 231 is fixedly connected to a cleaning brush 232 and a cleaning scraper 233. The cleaning brush 232 and the cleaning scraper 233 are arranged in a ring along the inner wall of the support frame 231. The outer walls of the cleaning brush 232 and the cleaning scraper 233 are elastically pressed against the outer wall of the screw body 1. As the electric push rod 24 moves the support frame 231 closer to the screw body 1, the ring-shaped array of cleaning brushes 232 first elastically contacts the outer wall of the screw body 1, initially brushing away the floating dust and loose dirt attached to the surface of the screw body 1. As the cleaning structure 2 slides along the screw body 1, the subsequent ring-shaped array of cleaning scrapers 233 further elastically presses against the outer wall of the screw body 1, scraping away stubborn mud and concrete residue attached to the surface of the screw body 1. The cleaning brush 232 and the cleaning scraper 233 work together, and the circular array layout ensures that there are no dead corners in the circumference of the screw body 1. The elastic and tight design not only ensures the cleaning effect, but also avoids hard contact that could damage the outer wall structure of the screw body 1.

[0017] Please see Figure 4The dust collection structure 25 includes a connecting block 251. The top of the connecting block 251 is fixedly connected to the bottom of the support frame 231. A slide rail 252 is provided on the inner wall of the connecting block 251, and a dust collection box 253 is slidably connected to the outer wall of the slide rail 252. Before cleaning, the dust collection box 253 is slidably installed into the connecting block 251 via the slide rail 252, ensuring that the dust collection box 253 is installed in place and fits tightly with the connecting block 251 to prevent residue from falling or leaking out. During the cleaning process, the residue brushed off by the cleaning brush 232 and scraped off by the cleaning scraper 233 falls directly into the dust collection box 253 under the action of gravity for centralized collection. When the cleaning structure 2 slides along the screw body 1, the dust collection structure 25 moves synchronously with the support frame 231 via the connecting block 251, always positioned directly below the scraping structure 233 to receive residue. After the cleaning operation is completed, the dust collection box 253 is pulled out along the slide rail 252 to clean the residue collected inside. After cleaning, the dust collection box 253 is reset and installed through the slide rail 252. The operation is convenient and can keep the construction environment clean.

[0018] Working principle: Before use, first check whether the bolt connection between the fixing block 21 and the screw body 1 is tight to ensure the overall stability of the cleaning structure 2. Start the electric push rod 24. The electric push rod 24 extends and drives the scraping structure 23 to move along the direction of the screw body 1. The three sets of annular array telescopic rods 22 extend and retract synchronously to guide and prevent the scraping structure 23 from deviating during movement. After the scraping structure 23 initially contacts the outer wall of the screw body 1, adjust the extension and retraction of the electric push rod 24 so that the scraping structure 23 reaches the preset cleaning position. Then, the electric push rod 24 drives the entire cleaning structure 2 to slide slowly along the axial direction of the screw body 1 to start the cleaning operation. The telescopic rods 22 always remain in the extension and retraction state to adapt to the sliding trajectory and ensure the stability of the fit between the scraping structure 23 and the screw body 1. As the electric push rod 24 drives the support frame 231 to approach the screw body 1, the annular array of cleaning brushes 232 first elastically contacts the outer wall of the screw body 1 to initially remove the floating dust and loose dirt attached to the surface of the screw body 1. As the cleaning structure 2 slides along the screw body 1, the subsequent annular array of cleaning scrapers 233 further elastically adheres to the outer wall of the screw body 1, scraping away stubborn mud and concrete residue adhering to the surface of the screw body 1. The cleaning brushes 232 and cleaning scrapers 233 work together; the annular array layout ensures no cleaning dead zones in the circumferential direction of the screw body 1. The elastic adhesion design ensures cleaning effectiveness while avoiding hard contact that could damage the outer wall structure of the screw body 1. Before cleaning, the dust collection box 253 is slidably installed into the connecting block 251 via the slide rail 252, ensuring that the dust collection box 253 is properly installed and tightly fitted to the connecting block 251 to prevent residue from falling or being missed. During cleaning, the residue brushed off by the cleaning brushes 232 and scraped off by the cleaning scrapers 233 falls directly into the dust collection box 253 under gravity for centralized collection. As the cleaning structure 2 slides along the screw body 1, the dust collection structure 25 moves synchronously with the support frame 231 via the connecting block 251, always positioned directly below the scraping structure 23 to collect residue. After the cleaning operation is completed, the dust collection box 253 is pulled out along the slide rail 252 to clean the collected residue. After cleaning, the dust collection box 253 is reset and installed via the slide rail 252, making the operation convenient and maintaining a clean construction environment.

[0019] Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. All other embodiments obtained by those skilled in the art and related fields based on the embodiments of the present invention without inventive effort should fall within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described and explained in the present invention, unless otherwise specified or limited, shall be implemented according to conventional means in the art.

Claims

1. A screw pile diameter expansion construction mechanism, comprising a screw body (1), characterized in that: The outer wall of the screw body (1) is fixedly connected to a cleaning structure (2) by bolts; The cleaning structure (2) includes a fixing block (21), the outer wall of which is fixedly connected to the outer wall of the screw body (1) by bolts. A telescopic rod (22) and an electric push rod (24) are fixedly connected to the side wall of the fixing block (21). A scraping structure (23) is fixedly connected to the end of the telescopic rod (22) and the electric push rod (24) away from the fixing block (21). A dust collection structure (25) is fixedly connected to the bottom of the scraping structure (23).

2. The screw pile diameter expansion construction mechanism according to claim 1, characterized in that: The telescopic rod (22) is provided in three sets, and the telescopic rod (22) is arranged in a ring along the side wall of the fixed block (21).

3. The screw pile diameter expansion construction mechanism according to claim 1, characterized in that: The scraping structure (23) includes a support frame (231), the side wall of which is fixedly connected to the ends of the telescopic rod (22) and the electric push rod (24).

4. The screw pile diameter expansion construction mechanism according to claim 3, characterized in that: The inner wall of the support frame (231) is fixedly connected to a cleaning brush (232) and a cleaning scraper (233). The cleaning brush (232) and the cleaning scraper (233) are arranged in a ring along the inner wall of the support frame (231). The outer walls of the cleaning brush (232) and the cleaning scraper (233) are elastically attached to the outer wall of the screw body (1).

5. The screw pile diameter expansion construction mechanism according to claim 1, characterized in that: The dust collection structure (25) includes a connecting block (251), the top of which is fixedly connected to the bottom of the support frame (231).

6. The screw pile diameter expansion construction mechanism according to claim 5, characterized in that: The inner wall of the connecting block (251) is provided with a slide rail (252), and the outer wall of the slide rail (252) is slidably connected to a dust collection box (253).

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