Prestressed reducing pipe pile

Abstract

The utility model relates to the technical field of pipe piles, in particular to a prestressed variable-diameter pipe pile which comprises a pipe pile body, a supporting assembly used for adjusting the supporting area is arranged in the top end of the pipe pile body, the supporting assembly comprises supporting blocks fixedly connected to the top ends of the side walls of the four sides of the pipe pile body, and sliding grooves are formed in the upper surfaces of the supporting blocks; through cooperative arrangement of the supporting blocks, the sliding grooves, the supporting plates and other structures, during use, according to the size of a carried object, the supporting plates slide in the sliding grooves, and meanwhile the connecting rods are driven to slide in the fixing pipes; the supporting plate is slidably connected to the pipe pile body, so that the distance between the supporting plate and the pipe pile body is adjusted, the supporting area of the pipe pile body is increased, and the problem that the supporting stability is reduced due to the fact that the supporting area of the top end cannot be adjusted when objects of different sizes are borne is solved as much as possible.

Description

Technical Field

[0001] The present application relates to the technical field of pipe piles, and in particular to a prestressed variable diameter pipe pile. Background Art

[0002] Prestressed pipe piles are products composed of cylindrical pile bodies, end plates and steel sleeves. Prestressed concrete pipe piles can be divided into post-tensioned prestressed pipe piles and pre-tensioned prestressed pipe piles. Pre-tensioned prestressed pipe piles are hollow cylindrical slender concrete prefabricated components made by pre-tensioning prestressing technology and centrifugal forming.

[0003] The utility model patent with announcement number CN219137663U proposes a prestressed variable diameter pipe pile, including a pipe pile, which is divided into two sections in the length direction, namely a first pipe and a second pipe, the first pipe and the second pipe are integrally formed, the first pipe is located above the second pipe, the diameter of the first pipe is larger than the diameter of the second pipe, and a steel cage is preset in the first pipe and the second pipe.

[0004] The above-mentioned prestressed variable diameter pipe pile is divided into a first pipe and a second pipe, and the diameter of the first pipe is larger than the diameter of the second pipe. With the assistance of a steel cage, the wall thickness of the first pipe which is subjected to greater stress is increased, so that it can withstand more loads and reduce the possibility of pipe pile breakage. However, the top end area of ​​the first pipe is fixed. When carrying objects of different sizes, the support area of ​​the top end cannot be adjusted, resulting in a problem of reduced support stability. Utility Model Content

[0005] The utility model aims to solve or at least alleviate the existing prestressed variable diameter pipe pile, by dividing the pipe pile into a first pipe and a second pipe, and the diameter of the first pipe is greater than the diameter of the second pipe, with the assistance of a steel cage, the wall thickness of the first pipe that is subjected to greater force is increased, so that more loads can be carried and the possibility of pipe pile breakage is reduced. However, the top end area of ​​the first pipe is fixed, and when objects of different sizes are carried, the support area of ​​the top end cannot be adjusted, resulting in reduced support stability.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A prestressed variable diameter pipe pile comprises a pipe pile body, a support assembly for adjusting the support area is arranged inside the top of the pipe pile body, the support assembly comprises a support block fixedly connected to the top of the four side walls of the pipe pile body, a slide groove is arranged on the upper surface of the support block, a support plate is slidably arranged in the slide groove, the four side walls of the pipe pile body are located at the support block and are fixedly connected to the inside of the support block, a connecting rod is slidably connected in the fixing tube, and the end of the connecting rod away from the fixing tube passes through the support block and is fixedly connected to the support plate.

[0008] By adopting the above technical solution, when in use, according to the size of the carried object, the support plate is slid in the slide groove, and the connecting rod is driven to slide in the fixed pipe, so that the support plate is slidably connected to the pipe pile body to adjust the distance between the support plate and the pipe pile body, thereby increasing the support area of ​​the pipe pile body and avoiding as much as possible the problem of being unable to adjust the support area at the top when carrying objects of different sizes, resulting in reduced support stability.

[0009] Optionally, the length of the connecting rod is smaller than the length of the sliding groove.

[0010] By adopting the above technical solution, it is possible to prevent the support plate from sliding out of the slide groove, causing the support block to be unable to support the support plate, so that the support plate is suspended in the air.

[0011] Optionally, one end of the lower surface of the support block away from the pipe pile body is fixedly connected to a first support column, and one end of the first support column away from the support block is fixedly connected to the side wall of the pipe pile body.

[0012] By adopting the above technical solution, the support block can be supported by the first support column, thereby improving the stability of the support block.

[0013] Optionally, a second support column is provided between the lower surface of the support plate and the pipe pile body, the second support column is provided with a plurality of different specifications and lengths, both ends of the second support column are fixedly connected with a connecting plate, the connecting plate is provided with a plurality of fixing bolts, the fixing bolts penetrate the connecting plate and are respectively threadedly connected to the pipe pile body and the support plate.

[0014] By adopting the above technical solution, a suitable second support column is selected according to the distance the support plate slides out in the slide groove, and the connecting plates at both ends of the second support column are respectively connected to the support plate and the pile body through fixing bolts, thereby improving the stability of the support plate.

[0015] Optionally, the pipe pile body is divided into an upper pipe and a lower pipe, and the diameter of the upper pipe is larger than the diameter of the lower pipe.

[0016] By adopting the above technical solution, the wall thickness of the upper tube that is subjected to greater stress can be increased to improve the bearing capacity, while the processing material of the lower tube that is subjected to relatively less stress can be reduced to reduce the production cost.

[0017] Optionally, a transition angle is provided between the upper tube and the lower tube, and two ends of the transition angle are fixedly connected to the upper tube and the lower tube respectively.

[0018] By adopting the above technical solution, when the pipe pile body is subjected to force, the stress is concentrated between the upper pipe and the lower pipe, which makes the connection easy to crack. By using the transition angle to transition the stress, the stress can be applied to the upper pipe and the lower pipe at the same time, thereby reducing the possibility of cracking of the pipe pile body.

[0019] Optionally, through holes communicating with the slide grooves are formed on the side walls on both sides of the support block.

[0020] By adopting the above technical solution, after the support plate is slid out of the slide groove to a suitable distance to carry the object, cement or concrete can be filled into the slide groove through the through hole to prevent the connecting rod from being suspended in the slide groove, thereby improving the stability of the connecting rod.

[0021] Optionally, the bottom end of the lower tube is fixedly connected with a mounting bevel.

[0022] By adopting the above technical solution, the contact area between the bottom end of the pipe pile body and the soil is reduced, making it easier to install the pipe pile body into the soil.

[0023] In summary, the beneficial effects of this application are as follows:

[0024] 1. The present application adopts the coordination arrangement between the supporting block, the slide groove and the supporting plate. When in use, according to the size of the object being carried, the supporting plate is slid in the slide groove, and the connecting rod is driven to slide in the fixed pipe, so that the supporting plate is slidably connected to the pipe pile body to adjust the distance between the supporting plate and the pipe pile body, thereby increasing the supporting area of ​​the pipe pile body and avoiding as much as possible the problem of being unable to adjust the supporting area at the top when carrying objects of different sizes, resulting in reduced support stability;

[0025] 2. According to the distance that the support plate slides out in the slide groove, select a suitable second support column, and then connect the connecting plates at both ends of the second support column to the support plate and the pipe pile body respectively through fixing bolts, which can improve the stability of the support plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0027] Figure 2 This is a schematic diagram of the upper tube explosion structure of the utility model;

[0028] Figure 3 For the utility model Figure 1 Schematic diagram of the enlarged structure of area A in the middle.

[0029] Explanation of the accompanying drawings: 1. Pipe pile body; 2. Support block; 3. Slide groove; 4. Support plate; 5. Fixed pipe; 6. Connecting rod; 7. First support column; 8. Second support column; 9. Connecting plate; 10. Fixing bolt; 11. Upper pipe; 12. Lower pipe; 13. Transition bevel; 14. Through hole; 15. Installation bevel. DETAILED DESCRIPTION

[0030] The following is combined with Figure 1-3 This application is described in further detail.

[0031] See also Figure 1-3 A prestressed variable diameter pipe pile comprises a pipe pile body 1, a support assembly for adjusting the support area is arranged at the top of the pipe pile body 1, the support assembly comprises a support block 2 fixedly connected to the top of the four side walls of the pipe pile body 1 for stably supporting an object, a slide groove 3 is arranged on the upper surface of the support block 2, a support plate 4 for increasing the area of ​​the support block 2 is slidably arranged in the slide groove 3, and a fixing pipe 5 is fixedly connected to the inside of the four side walls of the pipe pile body 1 at the support block 2, a connecting rod 6 for preventing the supporting plate 4 from sliding out of the slide groove 3 and falling is slidably connected in the fixing pipe 5, and the end of the connecting rod 6 away from the fixing pipe 5 passes through the support block 2 and is fixedly connected to the support plate 4.

[0032] When in use, according to the size of the object being carried, the support plate 4 is slid in the slide groove 3, and at the same time, the connecting rod 6 is driven to slide in the fixed tube 5, so that the support plate 4 is slidably connected to the pipe pile body 1 to adjust the distance between the support plate 4 and the pipe pile body 1, thereby increasing the support area of ​​the pipe pile body 1 and avoiding as much as possible the problem of being unable to adjust the support area at the top when carrying objects of different sizes, resulting in reduced support stability.

[0033] Reference Figure 2 The length of the connecting rod 6 is less than the length of the slide slot 3, which can prevent the support plate 4 from sliding out of the slide slot 3, causing the support block 2 to be unable to support the support plate 4, leaving the support plate 4 suspended in the air.

[0034] Reference Figure 1 The end of the lower surface of the support block 2 away from the pipe pile body 1 is fixedly connected with a first support column 7, and the end of the first support column 7 away from the support block 2 is fixedly connected to the side wall of the pipe pile body 1. The support block 2 can be supported by the first support column 7 to improve the stability of the support block 2.

[0035] Reference Figure 2A second support column 8 is provided between the lower surface of the support plate 4 and the pipe pile body 1. The second support column 8 has a variety of different specifications and lengths. Both ends of the second support column 8 are fixedly connected with a connecting plate 9. The connecting plate 9 is provided with a plurality of fixing bolts 10. The fixing bolts 10 all penetrate the connecting plate 9 and are respectively threadedly connected with the pipe pile body 1 and the support plate 4. According to the distance that the support plate 4 slides out in the slide groove 3, a suitable second support column 8 is selected, and then the connecting plates 9 at both ends of the second support column 8 are respectively connected with the support plate 4 and the pipe pile body 1 through the fixing bolts 10, which can improve the stability of the support plate 4.

[0036] Reference Figure 1 The pile body 1 is divided into an upper tube 11 and a lower tube 12. The diameter of the upper tube 11 is greater than that of the lower tube 12. The wall thickness of the upper tube 11 which is subjected to greater force can be increased to improve the bearing capacity. At the same time, the processing material of the lower tube 12 which is subjected to relatively less force can be reduced to reduce the production cost.

[0037] Reference Figure 1 A transition bevel 13 is provided between the upper tube 11 and the lower tube 12, and the two ends of the transition bevel 13 are fixedly connected to the upper tube 11 and the lower tube 12 respectively. When the pile body 1 is subjected to force, the stress is concentrated between the upper tube 11 and the lower tube 12, which makes the connection easy to crack. The transition bevel 13 is used for transition stress, so that the stress can act on the upper tube 11 and the lower tube 12 at the same time, thereby reducing the possibility of cracking of the pile body 1.

[0038] Reference Figure 2 The side walls of the support block 2 are provided with through holes 14 connected to the slide groove 3. After the support plate 4 is slid out of the slide groove 3 by a suitable distance to carry the object, cement or concrete can be filled into the slide groove 3 through the through holes 14 to prevent the connecting rod 6 from being suspended in the slide groove 3, thereby improving the stability of the connecting rod 6.

[0039] Reference Figure 1 The bottom end of the lower pipe 12 is fixedly connected with an installation bevel 15, which reduces the contact area between the bottom end of the pipe pile body 1 and the soil, making it easier to install the pipe pile body 1 into the soil.

[0040] The implementation principle of the present application is as follows: when in use, according to the size of the object being carried, the support plate 4 is slid in the slide groove 3, and at the same time, the connecting rod 6 is driven to slide in the fixed tube 5, so that the support plate 4 is slidably connected to the pipe pile body 1 to adjust the distance between the support plate 4 and the pipe pile body 1, thereby increasing the support area of ​​the pipe pile body 1 and avoiding as much as possible the problem that the support area at the top cannot be adjusted when carrying objects of different sizes, resulting in reduced support stability.

[0041] The above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A prestressed variable diameter pipe pile, comprising a pipe pile body (1), wherein a support assembly for adjusting the support area is provided at the top of the pipe pile body (1), characterized in that: The support assembly comprises a support block (2) fixedly connected to the top ends of the four side walls of the pipe pile body (1); a slide groove (3) is provided on the upper surface of the support block (2); a support plate (4) is slidably arranged in the slide groove (3); the four side walls of the pipe pile body (1) are located at the support block (2) and are fixedly connected to the inside with a fixing pipe (5); a connecting rod (6) is slidably connected in the fixing pipe (5); an end of the connecting rod (6) away from the fixing pipe (5) passes through the support block (2) and is fixedly connected to the support plate (4).

2. A prestressed variable diameter pipe pile according to claim 1, characterized in that: The length of the connecting rod (6) is smaller than the length of the sliding groove (3).

3. The prestressed variable diameter pipe pile according to claim 1, characterized in that: The end of the lower surface of the support block (2) away from the pipe pile body (1) is fixedly connected to a first support column (7), and the end of the first support column (7) away from the support block (2) is fixedly connected to the side wall of the pipe pile body (1).

4. The prestressed variable diameter pipe pile according to claim 1, characterized in that: A second support column (8) is provided between the lower surface of the support plate (4) and the pipe pile body (1); the second support column (8) is provided with a plurality of different lengths; both ends of the second support column (8) are fixedly connected to a connecting plate (9); a plurality of fixing bolts (10) are provided on the connecting plate (9); the fixing bolts (10) pass through the connecting plate (9) and are respectively threadedly connected to the pipe pile body (1) and the support plate (4).

5. The prestressed variable diameter pipe pile according to claim 1, characterized in that: The pipe pile body (1) is divided into an upper pipe (11) and a lower pipe (12), and the diameter of the upper pipe (11) is larger than the diameter of the lower pipe (12).

6. The prestressed variable diameter pipe pile according to claim 5, characterized in that: A transition angle (13) is provided between the upper tube (11) and the lower tube (12), and two ends of the transition angle (13) are fixedly connected to the upper tube (11) and the lower tube (12) respectively.

7. The prestressed variable diameter pipe pile according to claim 1, characterized in that: Through holes (14) communicating with the slide grooves (3) are provided on the side walls of both sides of the support block (2).

8. The prestressed variable diameter pipe pile according to claim 5, characterized in that: The bottom end of the lower tube (12) is fixedly connected with a mounting bevel (15).

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