Prefabricated high-strength concrete-filled steel tube pile

Abstract

The utility model relates to the technical field of concrete pipes, and discloses a prefabricated high-strength concrete-filled steel tube pile which comprises a cylinder body, an upper connecting part is fixedly installed at the top of the cylinder body, and a moving groove and an exposing hole are formed in the upper connecting part; an aligning part is fixedly mounted at the bottom of the barrel, a lower connecting part is fixedly mounted on the aligning part, fixing blocks are fixedly mounted on the two sides of the lower connecting part, and bolts are slidably mounted in the fixing blocks; the moving groove is matched with the fixed block, and the fixed block can slide in the moving groove; the exposed holes are matched with the bolts, and the bolts can be exposed out of the exposed holes. The tail end of one tubular pile is installed in the head end of the other tubular pile in a connection mode similar to nesting or sleeving, the overall rigidity and stability of the structure can be effectively improved, meanwhile, acting force can be better transmitted and dispersed through the connection mode, and the whole structure is more stable.

Description

Technical Field

[0001] The utility model relates to the technical field of concrete pipes, in particular to a prefabricated high-strength steel pipe concrete pile. Background Art

[0002] With the increasing importance of modern buildings and the continuous increase in building heights, higher requirements are placed on the bearing capacity of the foundation. The natural foundation can no longer better bear the load transmitted from the upper buildings. Therefore, when using natural foundations to build buildings, there is a way to enhance the bearing capacity, that is, to use reinforced concrete pipe piles as the foundation piles of the foundation, and use a pile driver to press the pipe piles into the ground to become foundation piles, so that the upper part of the pipe piles bears the building.

[0003] The existing patent document with publication number CN217352445U discloses a prestressed steel tube concrete pile, including a pile body, a support ring is fixedly sleeved on the pile body, and a plurality of hollow earth-driving nails distributed in a circular shape are fixedly installed on the lower surface of the support ring; a plurality of through openings are opened on the upper surface of the support ring, which are respectively connected to the plurality of earth-driving nails, and a mounting rod is vertically arranged in the through opening, a mounting plate is fixedly installed on the top of the mounting rod, and the mounting rod is locked by a locking assembly; a first spring rod is symmetrically fixedly installed on the inner wall of the earth-driving nail, a back plate is fixedly installed on one end of the first spring rod, and two limit rods are fixedly installed on the surface of the back plate.

[0004] During production activities, the existing device needs to open holes and place bolts at both ends of the pipe pile, which requires a high degree of manual participation. In addition, when in use, the connection between the pipe piles mainly relies on manual splicing and alignment followed by welding, which takes a long time to complete and is inefficient.

[0005] Therefore, we propose a prefabricated high-strength steel tube concrete pile to solve the above problems. Utility Model Content

[0006] The purpose of the utility model is to solve the problems existing in the prior art, and to propose a prefabricated high-strength steel tube concrete pile, which can effectively improve the overall rigidity and stability of the structure by installing the tail end of one pile inside the head end of another pile. At the same time, this connection method can also better transmit and disperse the force, making the entire structure more stable.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] A prefabricated high-strength steel tube concrete pile comprises a cylinder, an upper connecting part is fixedly installed on the top of the cylinder, and a moving groove and an exposure hole are opened inside the upper connecting part;

[0009] An alignment part is fixedly installed at the bottom of the cylinder, a lower connecting part is fixedly installed on the alignment part, fixing blocks are fixedly installed on both sides of the lower connecting part, and bolts are slidably installed inside the fixing blocks;

[0010] The movable groove is adapted to the fixed block, and the fixed block can slide inside the movable groove;

[0011] The exposed hole is matched with the bolt, and the bolt can be exposed from the exposed hole.

[0012] Preferably, a fixing plate is fixedly installed inside the upper connecting part, two driving blocks are fixedly installed on the fixing plate, a connecting rod is fixedly installed on the bolt, an arc block is fixedly installed on the connecting rod, and the arc block is in direct contact with the edge of the corresponding driving block.

[0013] Preferably, both driving blocks are provided with positioning holes at the tail ends, and the positioning holes and the ends of the corresponding exposed holes are in the same straight line.

[0014] Preferably, the space inside the upper connecting part is adapted to the lower connecting part, and when the lower connecting part is inside the upper connecting part, the top end of the upper connecting part fits with the bottom end of the alignment part.

[0015] Preferably, the diameter of the upper connecting portion is the same as that of the aligning portion, and a connecting plate is provided on the upper connecting portion and the aligning portion, and a nut adapted to the bolt is rotatably mounted on the connecting plate.

[0016] Preferably, the connecting plate can be in contact with the surfaces of the upper connecting portion and the aligning portion.

[0017] Preferably, the cylinder comprises a steel pipe, a steel cage is arranged inside the steel pipe, and the interior of the steel pipe is also filled with concrete, and the concrete wraps the steel cage inside the concrete.

[0018] Compared with the prior art, the utility model has the following beneficial effects:

[0019] The utility model is provided with an upper connecting part, an alignment part, a lower connecting part, a fixing block, a movable groove and an exposure hole, and a pipe pile is installed inside another pipe pile in a connection manner similar to nesting or sleeve connection, so that the overall rigidity and stability of the structure can be effectively improved, and the influence of external factors on the stability of the pipe piles can be reduced. Because the internal pipe piles are protected by the external pipe piles, the connection parts can better resist the impact of natural forces such as wind. At the same time, this connection method can better transmit and disperse the force, making the entire structure more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of a prefabricated high-strength steel tube concrete pile proposed by the utility model;

[0021] Figure 2A schematic diagram of an upper connection part and a lower connection part of a prefabricated high-strength steel tube concrete pile proposed by the utility model;

[0022] Figure 3 This is a schematic diagram of the lower connection part of a prefabricated high-strength steel tube concrete pile proposed by the utility model;

[0023] Figure 4 This is a schematic diagram of the upper connection portion of a prefabricated high-strength steel tube concrete pile proposed by the utility model;

[0024] Figure 5 This is a schematic diagram of the bolt movement principle of a prefabricated high-strength steel tube concrete pile proposed by the utility model;

[0025] Figure 6 The utility model is a schematic diagram of a prefabricated high-strength steel tube concrete pile cylinder structure.

[0026] In the figure: 1. cylinder; 2. upper connecting part; 3. alignment part; 4. lower connecting part; 5. fixing block; 6. bolt; 7. moving groove; 8. exposure hole; 9. driving block; 10. nut; 11. connecting plate; 12. fixing plate; 13. connecting rod; 14. arc block; 15. positioning hole; 16. steel pipe; 17. steel cage; 18. concrete. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0028] See also Figures 1 to 6 A prefabricated high-strength steel tube concrete pile comprises a cylinder 1, an upper connecting part 2 is fixedly installed on the top of the cylinder 1, and a moving groove 7 and an exposure hole 8 are opened inside the upper connecting part 2;

[0029] An alignment portion 3 is fixedly installed at the bottom of the cylinder 1, a lower connecting portion 4 is fixedly installed on the alignment portion 3, fixing blocks 5 are fixedly installed on both sides of the lower connecting portion 4, and bolts 6 are slidably installed inside the fixing blocks 5;

[0030] The movable groove 7 is adapted to the fixed block 5, and the fixed block 5 can slide inside the movable groove 7;

[0031] The vertical part of the movable groove 7 is for the fixed block 5 to enter, and the horizontal part is for the fixed block 5 to move.

[0032] During actual use, by placing the upper pipe pile fixing block 5 into the moving groove 7 of the lower pipe pile and then rotating the upper pipe pile, the fixing block 5 can be moved in the moving groove 7, thereby establishing a connection between the upper pipe pile and the lower pipe pile.

[0033] The exposure hole 8 is matched with the bolt 6 , and the bolt 6 can be exposed from the exposure hole 8 .

[0034] During the rotation of the upper pipe pile, the bolt 6 gradually comes out of the fixing block 5 and is then exposed to the field of vision through the exposure hole 8, which facilitates the limiting operation thereof and can further ensure the stability of the connection.

[0035] A fixing plate 12 is fixedly installed inside the upper connecting part 2, two driving blocks 9 are fixedly installed on the fixing plate 12, a connecting rod 13 is fixedly installed on the bolt 6, and an arc block 14 is fixedly installed on the connecting rod 13. The arc block 14 is in direct contact with the edge of the corresponding driving block 9.

[0036] When the upper pipe pile rotates, since the arc block 14 directly drives the block 9 to contact, the arc block 14 will move on the surface of the driving block 9, and the driving block 9 is an arc curve, so the connecting rod 13 will gradually slide inside the fixed block 5, and then the bolt 6 can be exposed from the fixed block 5.

[0037] The two driving blocks 9 are both provided with positioning holes 15 at the rear ends, and the positioning holes 15 and the rear ends of the corresponding exposed holes 8 are in the same straight line.

[0038] When the arc block 14 moves to the corresponding position, the arc block 14 will be located inside the positioning hole 15, so that the connecting rod 13 cannot move further, and the bolt 6 can be stably located in the fixed position.

[0039] The space inside the upper connecting part 2 is adapted to the lower connecting part 4 . When the lower connecting part 4 is inside the upper connecting part 2 , the top end of the upper connecting part 2 fits with the bottom end of the alignment part 3 .

[0040] In order to further ensure the stability of the connection, the joint between the upper connecting portion 2 and the alignment portion 3 may be processed by welding.

[0041] The diameter of the upper connecting portion 2 is the same as that of the aligning portion 3 . A connecting plate 11 is provided on the upper connecting portion 2 and the aligning portion 3 , and a nut 10 adapted to the bolt 6 is rotatably mounted on the connecting plate 11 .

[0042] When the bolt 6 is stably in a fixed position, the nut 10 is rotated to establish a connection relationship with the bolt 6 until the connecting plate 11 abuts against the upper connecting part 2 and the alignment part 3, and then the connecting plate 11 is welded to the upper connecting part 2, the alignment part 3 and the surface, which can further ensure the stability of the connection.

[0043] The connecting plate 11 can fit with the surface of the upper connecting portion 2 and the aligning portion 3, which can make the welding position more convenient.

[0044] The cylinder 1 includes a steel pipe 16 , a steel cage 17 is arranged inside the steel pipe 16 , and the interior of the steel pipe 16 is also filled with concrete 18 , which wraps the steel cage 17 inside the concrete 18 .

[0045] The arrangement of the steel pipe 16 and the steel cage 17 can ensure its stability.

[0046] The working process of the utility model; when it is used specifically, by placing the upper pipe pile fixing block 5 into the movable groove 7 of the lower pipe pile, and then rotating the upper pipe pile, the fixing block 5 can be moved inside the movable groove 7, and then the upper pipe pile is connected with the lower pipe pile.

[0047] When the upper pipe pile rotates, since the arc block 14 directly drives the block 9 to contact, the arc block 14 will move on the surface of the driving block 9, and the driving block 9 is an arc curve, so the connecting rod 13 will gradually slide inside the fixed block 5, and then the bolt 6 can be exposed from the fixed block 5.

[0048] When the bolt 6 is stably in a fixed position, the nut 10 is rotated to establish a connection relationship with the bolt 6 until the connecting plate 11 abuts against the upper connecting part 2 and the alignment part 3, and then the connecting plate 11 is welded to the upper connecting part 2, the alignment part 3 and the surface, which can further ensure the stability of the connection.

[0049] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A prefabricated high-strength steel tube concrete pile, comprising a cylinder (1), It is characterized in that An upper connecting portion (2) is fixedly mounted on the top of the cylinder (1), and a moving groove (7) and an exposure hole (8) are provided inside the upper connecting portion (2); An alignment portion (3) is fixedly mounted on the bottom of the cylinder (1), a lower connecting portion (4) is fixedly mounted on the alignment portion (3), fixing blocks (5) are fixedly mounted on both sides of the lower connecting portion (4), and bolts (6) are slidably mounted inside the fixing blocks (5); The movable groove (7) is matched with the fixed block (5), and the fixed block (5) can slide inside the movable groove (7); the exposed hole (8) is matched with the bolt (6), and the bolt (6) can be exposed from the exposed hole (8).

2. A prefabricated high-strength steel tube concrete pile according to claim 1, It is characterized in that A fixing plate (12) is fixedly installed inside the upper connecting part (2), two driving blocks (9) are fixedly installed on the fixing plate (12), a connecting rod (13) is fixedly installed on the bolt (6), an arc block (14) is fixedly installed on the connecting rod (13), and the arc block (14) is in direct contact with the edge of the corresponding driving block (9).

3. A prefabricated high-strength steel tube concrete pile according to claim 2, It is characterized in that The two driving blocks (9) are both provided with positioning holes (15) at the rear ends, and the positioning holes (15) and the ends of the corresponding exposed holes (8) are located on the same straight line.

4. A prefabricated high-strength steel tube concrete pile according to claim 1, 2 or 3, It is characterized in that The space inside the upper connecting part (2) is adapted to the lower connecting part (4); when the lower connecting part (4) is inside the upper connecting part (2), the top end of the upper connecting part (2) fits with the bottom end of the alignment part (3).

5. A prefabricated high-strength steel tube concrete pile according to claim 1, 2 or 3, It is characterized in that The diameter of the upper connecting portion (2) is the same as that of the aligning portion (3). A connecting plate (11) is provided on the upper connecting portion (2) and the aligning portion (3). A nut (10) adapted to the bolt (6) is rotatably mounted on the connecting plate (11).

6. The prefabricated high-strength steel tube concrete pile according to claim 4, It is characterized in that The diameter of the upper connecting portion (2) is the same as that of the aligning portion (3). A connecting plate (11) is provided on the upper connecting portion (2) and the aligning portion (3). A nut (10) adapted to the bolt (6) is rotatably mounted on the connecting plate (11).

7. The prefabricated high-strength steel tube concrete pile according to claim 5, It is characterized in that The connecting plate (11) can be fitted with the surfaces of the upper connecting portion (2) and the alignment portion (3).

8. A prefabricated high-strength steel tube concrete pile according to claim 1, 2, 3, 6 or 7, It is characterized in that The cylinder (1) comprises a steel pipe (16), a steel cage (17) is arranged inside the steel pipe (16), and the interior of the steel pipe (16) is also filled with concrete (18), and the concrete (18) wraps the steel cage (17) inside itself.

9. The prefabricated high-strength steel tube concrete pile according to claim 4, It is characterized in that The cylinder (1) comprises a steel pipe (16), a steel cage (17) is arranged inside the steel pipe (16), and the interior of the steel pipe (16) is also filled with concrete (18), and the concrete (18) wraps the steel cage (17) inside itself.

10. The prefabricated high-strength steel tube concrete pile according to claim 5, It is characterized in that The cylinder (1) comprises a steel pipe (16), a steel cage (17) is arranged inside the steel pipe (16), and the interior of the steel pipe (16) is also filled with concrete (18), and the concrete (18) wraps the steel cage (17) inside itself.

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