A concrete pipe pile excavation device

Abstract

This utility model relates to the field of building construction technology, and in particular to a concrete pipe pile excavation device. It includes a main body of the excavation device, a support plate slidably connected inside the main body, a motor fixedly mounted on the top of the support plate, a connecting rod fixedly connected to the output shaft of the motor, and a screw threadedly connected to the end of the connecting rod away from the motor through the support plate. An adjustment component is used to assist workers in excavating concrete pipe piles of different inner diameters; the adjustment component is connected to the screw thread. This utility model, by setting the adjustment component, can achieve the effect of adjusting the excavation range according to the inner diameter of the concrete pipe pile, facilitating workers to excavate concrete pipe piles of different inner diameters, improving the applicability of the excavation device, increasing excavation efficiency, and reducing the time required for excavation.

Description

Technical Field

[0001] This utility model relates to the field of building construction technology, and in particular to a concrete pipe pile excavation device. Background Technology

[0002] Prestressed high-strength concrete pipe piles (PHC pipe piles) are hollow cylindrical precast concrete components made through prestressed centrifugal molding process. They have the characteristics of high single pile bearing capacity, good bending and crack resistance, and convenient construction. They are suitable for areas with artificial fill, soft soil, cohesive soil and other cover layers. The bearing layer is generally coarse sand, gravelly sand or weathered rock.

[0003] Prestressed concrete pipe piles are widely used in foundation engineering for industrial and civil buildings, bridges, etc. due to their low cost and convenient construction. If these concrete pipe piles are not fitted with pile shoes and pile caps, the pile core needs to be filled with concrete after excavation to improve the stress conditions at the pile top and enhance shear resistance. The quality of pile excavation directly determines the overall stability of the pile foundation. At the same time, in some construction scenarios where "excavation precedes pile driving", construction debris can easily fall into the concrete pipe pile and block the pile core during the rainy season. However, existing pile excavation devices cannot be adjusted according to the different inner diameters of concrete pipe piles, resulting in mud and sand remaining on the inner wall of the concrete pipe pile after excavation. This requires workers to excavate the pile again, affecting the efficiency of construction. To address these issues, how to design a concrete pipe pile excavation device has become a problem that we need to solve. Utility Model Content

[0004] The purpose of this invention is to excavate concrete pipe piles with different inner diameters.

[0005] The technical solution of this utility model is as follows: a concrete pipe pile excavation device, including an excavation device body, a support plate is slidably connected inside the excavation device body, a motor is fixedly installed on the top of the support plate, a connecting rod is fixedly connected to the output shaft of the motor, and a spiral component is threadedly connected to the end of the connecting rod away from the motor through the support plate. An adjustment component is provided to assist workers in excavating concrete pipe piles of different inner diameters. The adjustment component is connected to the auger.

[0006] Optionally, the adjusting assembly includes a plurality of threaded rods fixedly installed on the outer wall of the auger, and a limit rod is slidably connected inside the plurality of threaded rods.

[0007] Optionally, the limiting rod is inserted into the inside of the spiral component, and a connecting piece is fixedly connected to one end of the limiting rod.

[0008] Optionally, a plurality of scraper blades of different thicknesses are fixedly connected to the side of the connecting piece away from the limiting rod, and the plurality of scraper blades are fixedly connected to one side of the connecting piece at equal intervals.

[0009] Optionally, a threaded sleeve is rotatably connected to the side of the connecting piece away from the scraper, and the threaded sleeve is threadedly connected to the outer wall of the threaded rod.

[0010] Optionally, a connecting ring is fixedly connected to the outer wall of the top end of the spiral component, and a spring is fixedly installed at the bottom of the connecting ring.

[0011] Optionally, the spring is sleeved on the outer wall of the spiral member, and the outer wall of the spring is sleeved with a reinforcing sleeve.

[0012] Optionally, the reinforcing sleeve is slidably connected to the outer wall of the spiral component, and the reinforcing sleeve is sleeved on the outer wall of the connecting rod.

[0013] Optionally, a locking block is fixedly installed on the outer wall of the connecting rod, and the locking block is inserted into the inside of the reinforcing sleeve.

[0014] Optionally, two sliding sleeves are fixedly installed on the top of the support plate. Both sliding sleeves are fitted onto the outer wall of the main body of the pile-pulling device. One of the sliding sleeves has a fastening bolt connected to its interior by a thread, and the fastening bolt abuts against the outer wall of the main body of the pile-pulling device.

[0015] In summary, this application includes at least one of the following beneficial technical effects: This utility model, by setting an adjustment component, can achieve the effect of adjusting the pile excavation range according to the inner diameter of the concrete pipe pile, making it convenient for workers to excavate concrete pipe piles with different inner diameters, improving the applicability of the pile excavation device, increasing the pile excavation efficiency, and reducing the time required for workers to excavate piles. Furthermore, by strengthening the fit between the sleeve and the clamp, the strength of the connection between the connecting rod and the auger can be improved, preventing breakage at the connection. At the same time, it prevents rotation between the connecting rod and the auger, which could lead to loosening and separation, affecting the normal operation of the pile-pulling device. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure proposed in this utility model; Figure 2 This is a cross-sectional view of the adjustment component structure proposed in this utility model; Figure 3 The present utility model proposes Figure 2 Enlarged view of the A-section structure; Figure 4 The present utility model proposes Figure 2 Enlarged view of the structure of part B.

[0017] Figure label: 1. Main body of the pile-extraction device; 2. Support plate; 3. Sliding sleeve; 4. Fastening bolt; 5. Motor; 6. Connecting rod; 7. Spiral component; 8. Threaded rod; 9. Limiting rod; 10. Connecting piece; 11. Scraper; 12. Threaded sleeve; 13. Connecting ring; 14. Spring; 15. Reinforcing sleeve; 16. Locking block. Detailed Implementation

[0018] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0019] The components of the present invention embodiments described and shown in the accompanying drawings can typically be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.

[0020] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0021] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] Example 1, such as Figures 1 to 4The concrete pipe pile excavation device shown includes an excavation device body 1, a support plate 2 slidably connected inside the excavation device body 1, a motor 5 fixedly installed on the top of the support plate 2, a connecting rod 6 fixedly connected to the output shaft of the motor 5, and a screw 7 threadedly connected to the end of the connecting rod 6 away from the motor 5 through the support plate 2; and an adjustment component, which is used to assist workers in excavating concrete pipe piles of different inner diameters, and is connected to the screw 7.

[0024] The adjustment assembly includes multiple threaded rods 8 fixedly installed on the outer wall of the spiral component 7. A limit rod 9 is slidably connected inside the multiple threaded rods 8. The limit rod 9 is inserted into the interior of the spiral component 7. A connecting piece 10 is fixedly connected to one end of the limit rod 9. Multiple scraper blades 11 of different thicknesses are fixedly connected to the side of the connecting piece 10 away from the limit rod 9. The multiple scraper blades 11 are fixedly connected to one side of the connecting piece 10 at equal intervals. A threaded sleeve 12 is rotatably connected to the side of the connecting piece 10 away from the scraper blades 11. The threaded sleeve 12 is threadedly connected to the outer wall of the threaded rod 8. The adjustment component is used to assist workers in excavating concrete pipe piles of different inner diameters, thereby improving the efficiency of excavation. Specifically, when workers need to remove piles, they first place the main body 1 of the pile-removing device on top of the concrete pipe pile, aligning the auger 7 with the center of the concrete pipe pile. Then, workers can rotate the threaded sleeve 12 according to the inner diameter of the concrete pipe pile, causing the threaded sleeve 12 to rotate spirally along the outer wall of the threaded rod 8. This causes the threaded sleeve 12 to push the connecting piece 10 to move away from the threaded rod 8, allowing the connecting piece 10 to drive the limiting rod 9 and the scraper 11 to expand outwards until the scraper 11 contacts the inner wall of the concrete pipe pile. At this time, the rotation of the auger 7 will drive the scraper 11 to rotate through the threaded rod 8, the limiting rod 9, and the connecting piece 10, allowing the scraper 11 to remove the piles from the parts of the inner wall of the concrete pipe pile that have not been removed by the auger 7. This achieves the effect of adjusting the pile-removing range according to the inner diameter of the concrete pipe pile, making it convenient for workers to remove piles with different inner diameters, increasing the application range of the pile-removing device, improving pile-removing efficiency, and reducing the time required for workers to remove piles. The arrangement of multiple scraper blades 11 of different thicknesses and equidistantly spaced on the connecting plate 10 causes the distance between adjacent scraper blades 11 to gradually narrow from bottom to top. When the scraper blades 11 come into contact with the mud and sand on the inner wall of the concrete pipe pile, the scraper blades 11 with larger spacing below the connecting plate 10 will scrape off a portion of the mud and sand first, while the remaining mud and sand will be gradually scraped off by the subsequent scraper blades 11 with gradually narrower spacing. This scrapes off and breaks up the mud and sand on the inner wall of the concrete pipe pile, preventing the mud and sand from becoming too large and difficult to remove from the inside of the concrete pipe pile later. The multiple threaded rods 8 on the spiral component 7 allow workers to adjust the threaded sleeves 12 on each rod. These sleeves 12 then adjust the corresponding connecting plates 10 and scrapers 11, moving them away from the threaded rods 8 by different distances. This allows the scrapers 11 on different threaded rods 8 to scrape away mud and sand from different locations on the inner wall of the concrete pipe pile. The scrapers 11 on the multiple connecting plates 10 share the force of scraping away mud and sand, preventing the scrapers 11 on a single connecting plate 10 from scraping away too much mud and sand at once, which could cause jamming.

[0025] A connecting ring 13 is fixedly connected to the outer wall of the top end of the spiral component 7. A spring 14 is fixedly installed at the bottom of the connecting ring 13. The spring 14 is sleeved on the outer wall of the spiral component 7. A reinforcing sleeve 15 is sleeved on the outer wall of the spring 14. The end of the spring 14 away from the connecting ring 13 is fixedly installed on the inner wall of the reinforcing sleeve 15. The reinforcing sleeve 15 is slidably connected to the outer wall of the spiral component 7. The reinforcing sleeve 15 is sleeved on the outer wall of the connecting rod 6. A locking block 16 is fixedly installed on the outer wall of the connecting rod 6. The locking block 16 is inserted into the inside of the reinforcing sleeve 15. The reinforcement sleeve 15 and the locking block 16 work together to improve the strength of the connection between the connecting rod 6 and the spiral component 7, preventing breakage at the connection. This also prevents rotation between the connecting rod 6 and the spiral component 7, which could lead to loosening and separation, affecting the normal operation of the pile-extraction device. Furthermore, when workers need to separate the connecting rod 6 and the spiral component 7, they can pull the reinforcement sleeve 15 down along the outer wall of the spiral component 7. This causes the reinforcement sleeve 15 to pull the spring 14, extending and stopping its connection to the outer wall of the connecting rod 6, gradually separating it from the locking block 16. This stops the reinforcement sleeve 15 from limiting the rotation between the connecting rod 6 and the spiral component 7 via the locking block 16, allowing the connecting rod 6 and the spiral component 7 to separate normally. This facilitates subsequent replacement of the connecting rod 6 by workers according to the required pile-extraction depth of the concrete pipe pile.

[0026] Two sliding sleeves 3 are fixedly installed on the top of the support plate 2. Both sliding sleeves 3 are fitted on the outer wall of the main body 1 of the pile-pulling device. One of the sliding sleeves 3 has a fastening bolt 4 connected inside by threads. The fastening bolt 4 abuts against the outer wall of the main body 1 of the pile-pulling device. Among them, by setting the fastening bolt 4, when the workers are not using the pile-pulling device, the fastening bolt 4 can be tightened so that the fastening bolt 4 is pressed against the main body 1 of the pile-pulling device. The fastening bolt 4 limits the position of the support plate 2 on the main body 1 of the pile-pulling device through the sliding sleeve 3, which makes it convenient for the workers to lock the pile-pulling device.

[0027] Working principle: When using the pile-extraction device, first place the main body 1 of the device on top of the concrete pipe pile, aligning the auger 7 with the center of the pile. Then, the operator can rotate the threaded sleeve 12 according to the inner diameter of the pile, causing it to rotate spirally along the outer wall of the threaded rod 8. This pushes the connecting plate 10 away from the threaded rod 8, allowing it to extend the scraper 11 outwards until it contacts the inner wall of the pile. Then, the operator can start the motor 5. The connecting rod 6 drives the auger 7 to rotate, allowing the auger 7 to enter the concrete pipe pile for piling removal, extracting the mud and sand inside the concrete pipe pile. The rotation of the auger 7 also drives the scraper 11 to rotate through the threaded rod 8, the limiting rod 9, and the connecting plate 10, allowing the scraper 11 to remove the piling from the inner wall of the concrete pipe pile that has not been removed by the auger 7. This achieves the effect of adjusting the piling range according to the inner diameter of the concrete pipe pile, making it convenient for workers to remove piling from concrete pipe piles of different inner diameters, increasing the applicability of the piling removal device, improving piling removal efficiency, and reducing the time required for workers to remove piling.

[0028] The above specific embodiments are merely optional embodiments of this utility model. Based on the technical solution of this utility model and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A concrete pipe pile extraction device, characterized in that, The device includes a pile-pulling device body (1), a support plate (2) is slidably connected inside the pile-pulling device body (1), a motor (5) is fixedly installed on the top of the support plate (2), a connecting rod (6) is fixedly connected to the output shaft of the motor (5), and the end of the connecting rod (6) away from the motor (5) passes through the support plate (2) and is connected to a spiral component (7) by a thread. An adjustment component is used to assist workers in excavating concrete pipe piles with different inner diameters. The adjustment component is connected to the auger (7).

2. The concrete pipe pile extraction device according to claim 1, characterized in that, The adjustment assembly includes a plurality of threaded rods (8) fixedly installed on the outer wall of the auger (7), and a limit rod (9) is slidably connected inside the plurality of threaded rods (8).

3. A concrete pipe pile extraction device according to claim 2, characterized in that, The limiting rod (9) is inserted into the inside of the spiral component (7), and a connecting piece (10) is fixedly connected to one end of the limiting rod (9).

4. A concrete pipe pile extraction device according to claim 3, characterized in that, Multiple scraper blades (11) of different thicknesses are fixedly connected to the side of the connecting piece (10) away from the limiting rod (9), and the multiple scraper blades (11) are fixedly connected to one side of the connecting piece (10) at equal intervals.

5. A concrete pipe pile extraction device according to claim 4, characterized in that, The connecting piece (10) is rotatably connected to a threaded sleeve (12) on the side away from the scraper (11), and the threaded sleeve (12) is threadedly connected to the outer wall of the threaded rod (8).

6. A concrete pipe pile extraction device according to claim 1, characterized in that, A connecting ring (13) is fixedly connected to the outer wall of the top end of the spiral component (7), and a spring (14) is fixedly installed at the bottom of the connecting ring (13).

7. A concrete pipe pile extraction device according to claim 6, characterized in that, The spring (14) is sleeved on the outer wall of the spiral (7), and the outer wall of the spring (14) is sleeved with a reinforcing sleeve (15).

8. A concrete pipe pile extraction device according to claim 7, characterized in that, The reinforcing sleeve (15) is slidably connected to the outer wall of the spiral component (7), and the reinforcing sleeve (15) is sleeved on the outer wall of the connecting rod (6).

9. A concrete pipe pile extraction device according to claim 8, characterized in that, A locking block (16) is fixedly installed on the outer wall of the connecting rod (6), and the locking block (16) is inserted into the inside of the reinforcing sleeve (15).

10. A concrete pipe pile extraction device according to claim 1, characterized in that, Two sliding sleeves (3) are fixedly installed on the top of the support plate (2). Both sliding sleeves (3) are fitted on the outer wall of the main body (1) of the pile-pulling device. One of the sliding sleeves (3) has a fastening bolt (4) connected inside by a thread. The fastening bolt (4) abuts against the outer wall of the main body (1) of the pile-pulling device.

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