Efficient pile splicing structure for cast-in-place piles

Abstract

The utility model discloses an efficient pile splicing structure for cast-in-place piles, and relates to the technical field of cast-in-place pile splicing. The connecting structure comprises an I-shaped flange cylinder, a plurality of connecting grooves are symmetrically formed in one end of the I-shaped flange cylinder, the connecting grooves are evenly arranged in a circular mode, lower steel bars and upper steel bars are inserted into the connecting grooves in the two ends of the I-shaped flange cylinder correspondingly, and a plurality of annular stirrups are evenly and fixedly connected to one ends of the lower steel bars and one ends of the upper steel bars; the opposite ends of the lower steel bar and the upper steel bar are fixedly connected with screw heads. When the lower steel bar and the upper steel bar are pulled to be inserted into the connecting groove, one end of the lower steel bar and one end of the upper steel bar abut against the conical ring and move and bend in the guiding direction of the conical ring, and therefore the one end of the lower steel bar and one end of the upper steel bar are guided by the conical ring to penetrate through the connecting groove; and then the nut is tightened to realize quick alignment and fixation of the I-shaped flange cylinder, the lower reinforcing steel bar and the upper reinforcing steel bar, so that the pile splicing quality and the construction efficiency are effectively improved.

Description

Technical Field

[0001] This application relates to the field of cast-in-place pile splicing technology, and in particular to a high-efficiency splicing structure for cast-in-place piles. Background Technology

[0002] Cast-in-place piles, as a common type of pile foundation, are widely used in construction engineering. Due to their high bearing capacity and adaptability, they can effectively solve the problem of insufficient foundation bearing capacity. In actual construction, pile splicing technology is particularly important, especially when there is insufficient pile top elevation, broken piles, or substandard local quality. Splicing techniques are necessary to ensure the integrity and stability of the pile foundation.

[0003] Currently, the main construction methods for splicing cast-in-place piles include welding and butt welding. During welding, the rebar ends are typically aligned before welding to ensure the continuity and integrity of the reinforcing cage. In addition, some technical solutions employ auxiliary tools such as guide pipes and casings to improve the positioning accuracy of the reinforcing cage and the quality of the splicing. However, existing technologies still present some challenges during construction.

[0004] In the splicing of cast-in-place piles, the alignment of the rebar ends is one of the key steps. However, rebars are easily bent by external forces during construction, making it impossible to accurately align the rebar ends. This misalignment not only increases the difficulty of welding but may also lead to a decrease in splicing quality and affect construction efficiency. Utility Model Content

[0005] The purpose of this application is to address the problem that reinforcing bars are easily bent by external forces during construction, resulting in inaccurate alignment of the reinforcing bar ends, which leads to a decline in the quality of pile splicing and affects construction efficiency. This application provides an efficient pile splicing structure for cast-in-place piles.

[0006] To achieve the above objectives, this application specifically adopts the following technical solution:

[0007] A high-efficiency pile splicing structure for cast-in-place piles includes an I-beam flange cylinder. Multiple connecting grooves are symmetrically arranged at one end of the I-beam flange cylinder, forming a circular, uniform arrangement. Lower and upper reinforcing bars are respectively inserted into the connecting grooves at both ends of the I-beam flange cylinder. Multiple annular stirrups are uniformly fixedly connected to one end of each of the lower and upper reinforcing bars. A screw head is fixedly connected to the opposite end of each of the lower and upper reinforcing bars. One end of the screw head passes through the connecting groove and is threaded with a nut. A conical ring is symmetrically fixedly connected to one end of the I-beam flange cylinder, and one end of each of the lower and upper reinforcing bars abuts against the conical ring.

[0008] By adopting the above technical solution, and by setting up the cooperation of the screw head, nut, and conical ring, it is convenient to make one end of the lower and upper reinforcing bars contact the conical ring when they are inserted into the connecting groove. The lower and upper reinforcing bars move and bend along the guiding direction of the conical ring, so that one end of the lower and upper reinforcing bars is guided by the conical ring to pass through the connecting groove. Then, tightening the nut realizes the quick alignment and fixation of the I-beam flange cylinder with the lower and upper reinforcing bars, which effectively improves the quality of pile splicing and construction efficiency.

[0009] Furthermore, an extended inclined surface is provided at one end of the connecting groove.

[0010] By adopting the above technical solution, and by using the combination of the extended inclined surface and the connecting groove, the insertion angle of the lower and upper reinforcing bars when they are inserted into the connecting groove is effectively increased, thereby improving the efficiency of inserting the lower and upper reinforcing bars into the connecting groove.

[0011] Furthermore, a washer is fitted onto one end of the screw head, and the washer is installed between the nut and the I-beam flange.

[0012] By adopting the above technical solution and using the combination of nuts and gaskets, the contact area and friction between the nut and the I-beam flange are effectively increased, thereby improving the stability of the device.

[0013] Furthermore, a fixing ring is fitted around the outer periphery of the I-beam flange cylinder, a positioning ring is fixedly connected to the top of the fixing ring, and a plurality of fixing holes are evenly opened at one end of the fixing ring, with a fixing steel fork inserted into the inside of the fixing hole.

[0014] By adopting the above technical solution, and through the coordinated use of the positioning ring, fixing hole, and fixing fork, it is convenient to use one end of the fixing fork to pass through the fixing hole and insert into the ground when the traction fixing ring is placed on top of the lower reinforcing bar. This effectively improves the connection strength and stability between the fixing ring and the ground, and allows the fixing ring to drive the positioning ring to form an enclosure around the top of the lower reinforcing bar. This facilitates the pouring of concrete at the connection end of the I-beam flange cylinder with the lower and upper reinforcing bars to form a fixing base, thereby effectively improving the connection stability of the device.

[0015] Furthermore, the positioning ring has an inner threaded groove, and a threaded ring is threaded inside the inner threaded groove. Multiple connecting rods that are fixedly connected to the I-beam flange cylinder are uniformly fixed inside the threaded ring.

[0016] By adopting the above technical solution and using the inner threaded groove and the threaded ring in cooperation, when the threaded ring is rotated to form a threaded connection with the inner threaded groove, the threaded ring drives the I-beam flange cylinder to move up and down through the connecting rod, thereby realizing the adjustment of the installation height of the I-beam flange cylinder and effectively improving the applicability of the device.

[0017] Furthermore, a ring-shaped knob is fixedly connected to the top of the screw ring.

[0018] By adopting the above technical solution and using the combination of the annular knob and the screw ring, the friction between the screw ring and the hand is effectively increased, thus improving the practicality of the device.

[0019] Furthermore, a support cylinder is fixedly connected to the bottom of the fixing ring, and the support cylinder is sleeved around the lower reinforcing bar.

[0020] By adopting the above technical solution, and by setting up the support cylinder in conjunction with the lower steel bar, the support cylinder forms a wrapping support around the top of the lower steel bar, thereby improving the ground support strength around the top of the lower steel bar and enhancing the practicality of the device.

[0021] Furthermore, the surfaces of the I-beam flange cylinder, screw head, and nut are all coated with a polyurethane waterproof coating.

[0022] By adopting the above technical solution and setting a polyurethane waterproof coating, the device's corrosion resistance is effectively improved, and its service life is extended.

[0023] In summary, this application includes at least one of the following beneficial effects:

[0024] 1. By using a combination of screw head, nut, and conical ring, it is easy to insert the lower and upper reinforcing bars into the connecting groove. This allows one end of the lower and upper reinforcing bars to come into contact with the conical ring and move and bend along the guiding direction of the conical ring. As a result, one end of the lower and upper reinforcing bars is guided by the conical ring to pass through the connecting groove. Then, tightening the nut achieves quick alignment and fixation of the I-beam flange cylinder with the lower and upper reinforcing bars, effectively improving the quality of pile splicing and construction efficiency.

[0025] 2. By using the inner threaded groove and the threaded ring in conjunction, when the threaded ring is rotated to form a threaded connection with the inner threaded groove, the threaded ring drives the I-beam flange cylinder to move up and down through the connecting rod, thereby realizing the adjustment of the installation height of the I-beam flange cylinder and effectively improving the applicability of the device. Attached Figure Description

[0026] Figure 1 This is a three-dimensional structural diagram of the main body of the device in this application.

[0027] Figure 2 This is a side sectional view of the main body of the device in this application.

[0028] Figure 3 This is an exploded view of the internal structure of the spiral ring in this application.

[0029] Figure 4 This is an exploded view of the internal structure of the fixed ring in this application.

[0030] Explanation of reference numerals in the attached figures:

[0031] 1. I-beam flange cylinder; 2. Connecting groove; 3. Lower reinforcing bar; 4. Upper reinforcing bar; 5. Circular stirrup; 6. Threaded head; 7. Nut; 8. Conical ring; 9. Extended bevel; 10. Gasket; 11. Fixing ring; 12. Positioning ring; 13. Fixing hole; 14. Fixing fork; 15. Internal threaded groove; 16. Threaded ring; 17. Connecting rod; 18. Circular knob; 19. Support cylinder. Detailed Implementation

[0032] The following is in conjunction with the appendix Figure 1 —4 provides further detailed description of this application.

[0033] This application discloses an efficient pile splicing structure for cast-in-place piles.

[0034] Reference Figure 1 - Figure 3 A high-efficiency pile splicing structure for cast-in-place piles includes an I-beam flange cylinder 1. Multiple connecting grooves 2 are symmetrically opened at one end of the I-beam flange cylinder 1. The multiple connecting grooves 2 are arranged in a circular and uniform manner. Lower steel bars 3 and upper steel bars 4 are respectively inserted into the connecting grooves 2 at both ends of the I-beam flange cylinder 1. Multiple annular stirrups 5 are uniformly fixedly connected to one end of the multiple lower steel bars 3 and upper steel bars 4. A screw head 6 is fixedly connected to the opposite end of the lower steel bars 3 and upper steel bars 4. One end of the screw head 6 passes through the connecting groove 2 and is threadedly connected to a nut 7. A conical ring 8 is symmetrically fixedly connected to one end of the I-beam flange cylinder 1. One end of the lower steel bars 3 and upper steel bars 4 abuts against the conical ring 8.

[0035] One end of the connecting groove 2 is provided with an extended inclined surface 9;

[0036] Furthermore, a gasket 10 is fitted onto one end of the screw head 6, and the gasket 10 is installed between the nut 7 and the I-beam flange 1.

[0037] In use, the lower reinforcing bar 3 is first hoisted into the preset hole and poured with concrete. At the same time, the screw head 6 at the top of the lower reinforcing bar 3 is left above the ground. Then, the I-beam flange cylinder 1 is manually pulled and inserted between multiple lower reinforcing bars 3. At the same time, the I-beam flange cylinder 1 drives the cone ring 8 to push out and contact the screw head 6 at the top of the lower reinforcing bar 3, and pushes the screw head 6 to drive the lower reinforcing bar 3 to bend and slide along the outer surface of the cone ring 8. This allows the lower reinforcing bar 3 to slide along the surface of the cone ring 8 into the interior of the connecting groove 2 under force. At the same time, the expansion slope 9 is set to increase the opening angle of the connecting groove 2 towards the screw head 6, so that the lower reinforcing bar 3 pushes the screw head 6 through the connecting groove 2 and achieves the positioning of multiple lower reinforcing bars 3. Then, one end of the traction washer 10 is sleeved on one end of the screw head 6, and the nut 7 is tightened to push the washer 10 to form a fixed connection with the I-beam flange cylinder 1 along the length direction of the screw head 6, so as to achieve a quick fixed connection between the lower reinforcing bar 3 and the I-beam flange cylinder 1.

[0038] Then, the upper reinforcing bar 4 is hoisted and moved above the I-beam flange cylinder 1, and the upper reinforcing bar 4 is slowly lowered so that one end of the upper reinforcing bar 4 moves into the interior of the connecting groove 2 along the guiding direction of the conical ring 8. At the same time, the extended inclined surface 9 is set to increase the opening angle of the connecting groove 2 towards the screw head 6, so that the upper reinforcing bar 4 pushes one end of the screw head 6 through the connecting groove 2, thereby achieving rapid positioning of multiple upper reinforcing bars 4. Next, the washer 10 is sleeved on one end of the upper reinforcing bar 4, and then the nut 7 is tightened, so that the nut 7 and the screw head 6 form a threaded connection, and the washer 10 is pushed to move towards the upper reinforcing bar 4 along the length direction of the screw head 6. At the same time, the upper reinforcing bar 4 and the I-beam flange cylinder 1 form a rapid fixed connection, which facilitates the rapid positioning, alignment and fixing of the lower reinforcing bar 3 and the upper reinforcing bar 4, thereby effectively improving the pile splicing quality and construction efficiency.

[0039] Reference Figure 2 - Figure 4 A fixing ring 11 is fitted around the outer periphery of the I-beam flange cylinder 1. A positioning ring 12 is fixedly connected to the top of the fixing ring 11. Multiple fixing holes 13 are evenly opened at one end of the fixing ring 11. A fixing steel fork 14 is inserted into the inside of the fixing hole 13.

[0040] The positioning ring 12 has an inner threaded groove 15 on its inner side. The inner threaded groove 15 is connected to a threaded ring 16. Multiple connecting rods 17 that are fixedly connected to the I-beam flange 1 are evenly fixedly connected inside the threaded ring 16.

[0041] Furthermore, a ring-shaped knob 18 is fixedly connected to the top of the screw ring 16.

[0042] In use, the fixing ring 11 is manually pulled to fix the I-beam flange cylinder 1 to the lower reinforcing bar 3, so that the fixing ring 11 covers the top periphery of the lower reinforcing bar 3. Then, one end of the fixing fork 14 is manually pulled through the fixing hole 13 and inserted into the ground to improve the connection strength between the fixing ring 11 and the ground. Then, according to the height of the lower reinforcing bar 3 extending to the ground, the ring knob 18 is rotated to drive the threaded ring 16 to form a threaded connection with the inner thread groove 15. The threaded ring 16 drives the connecting rod 17 to pull the I-beam flange cylinder 1 to move along the length direction of the fixing fork 14, thereby completing the adjustment of the installation height of the I-beam flange cylinder 1. This allows the I-beam flange cylinder 1 to move the connecting groove 2 closer to and aligned with the lower reinforcing bar 3, effectively improving the practicality of the device. After the connection between the lower reinforcing bar 3 and the upper reinforcing bar 4 is completed, concrete can be injected into the positioning ring 12, and the positioning ring 12 can be used as a template to form a fixed base between the I-beam flange cylinder 1 and the lower and upper reinforcing bars 3 and 4, thereby improving the connection strength and stability between the I-beam flange cylinder 1 and the lower and upper reinforcing bars 3 and 4.

[0043] Reference Figure 1 and Figure 2 , Figure 4 The bottom of the fixing ring 11 is fixedly connected to the support cylinder 19, which is sleeved around the lower steel bar 3.

[0044] When in use, when the traction I-beam flange cylinder 1 is fixedly connected to the lower reinforcing bar 3, the I-beam flange cylinder 1 drives the support cylinder 19 to insert into the ground around the lower reinforcing bar 3, and the extended inclined surface 9 forms support on the inner wall of the installation hole into which the lower reinforcing bar 3 is inserted, so as to reduce the compression of the lower reinforcing bar 3 by the inner wall of the installation hole and improve the installation efficiency of the device.

[0045] Reference Figure 2 and Figure 3 The surfaces of the I-beam flange 1, the screw head 6, and the nut 7 are all coated with a polyurethane waterproof coating.

[0046] During use, a polyurethane waterproof coating is applied to the surfaces of the I-beam flange cylinder 1, the screw head 6, and the nut 7, forming a waterproof layer that effectively improves the corrosion resistance of the surfaces and extends the service life of the device.

[0047] The implementation principle of this embodiment of a high-efficiency pile splicing structure for cast-in-place piles is as follows: First, the lower reinforcing bar 3 is hoisted into the preset hole and poured with concrete. At the same time, the screw head 6 at the top of the lower reinforcing bar 3 is left above the ground. Then, the I-beam flange cylinder 1 is pulled and inserted between multiple lower reinforcing bars 3. At the same time, the I-beam flange cylinder 1 drives the cone ring 8 to push out and contact the screw head 6 at the top of the lower reinforcing bar 3, and pushes the screw head 6 to drive the lower reinforcing bar 3 to bend and slide along the outer surface of the cone ring 8. This allows the lower reinforcing bar 3 to slide along the surface of the cone ring 8 into the interior of the connecting groove 2 under force. At the same time, the extended inclined surface 9 is set to increase the opening angle of the connecting groove 2 towards the screw head 6, thereby allowing the lower reinforcing bar 3 to push the screw head 6 through the connecting groove 2 and to achieve the positioning of multiple lower reinforcing bars 3. Then, one end of the traction washer 10 is sleeved on one end of the screw head 6, and the nut 7 is tightened to push the washer 10 to form a fixed connection with the I-beam flange cylinder 1 along the length direction of the screw head 6, so as to achieve a quick fixed connection between the lower reinforcing bar 3 and the I-beam flange cylinder 1.

[0048] Furthermore, when the traction I-beam flange cylinder 1 is inserted between multiple lower reinforcing bars 3, the traction I-beam flange cylinder 1 causes the fixing ring 11 to cover the top periphery of the lower reinforcing bars 3. Then, by manually tractioning one end of the fixing steel fork 14 through the fixing hole 13 and inserting it into the ground, the connection strength between the fixing ring 11 and the ground is improved. Then, according to the height of the lower reinforcing bars 3 extending to the ground, the ring knob 18 is rotated to drive the threaded ring 16 to form a threaded connection with the inner thread groove 15. The threaded ring 16 drives the connecting rod 17 to pull the I-beam flange cylinder 1 to move along the length direction of the fixing steel fork 14, thereby completing the adjustment of the installation height of the I-beam flange cylinder 1, so that the I-beam flange cylinder 1 drives the connecting groove 2 to move closer to the lower reinforcing bars 3.

[0049] Then, the upper reinforcing bar 4 is hoisted and moved above the I-beam flange cylinder 1, and the upper reinforcing bar 4 is slowly lowered so that one end of the upper reinforcing bar 4 moves into the interior of the connecting groove 2 along the guiding direction of the conical ring 8. At the same time, the extended inclined surface 9 is set to increase the opening angle of the connecting groove 2 towards the screw head 6, so that the upper reinforcing bar 4 pushes one end of the screw head 6 through the connecting groove 2, thereby achieving rapid positioning of multiple upper reinforcing bars 4. Next, the gasket 10 is sleeved on one end of the upper reinforcing bar 4, and then the nut 7 is tightened so that the nut 7 and the screw head 6 form a threaded connection, and the gasket 10 is pushed to move towards the upper reinforcing bar 4 along the length direction of the screw head 6, so that the upper reinforcing bar 4 and the I-beam flange cylinder 1 form a rapid fixed connection.

Claims

1. A high-efficiency pile splicing structure for cast-in-place piles, comprising an I-beam flange cylinder (1), characterized in that: The I-beam flange cylinder (1) has multiple connecting grooves (2) symmetrically opened at one end. The multiple connecting grooves (2) are arranged in a circular and uniform manner. The connecting grooves (2) at both ends of the I-beam flange cylinder (1) are respectively inserted with lower steel bars (3) and upper steel bars (4). Multiple annular stirrups (5) are uniformly fixedly connected to one end of the multiple lower steel bars (3) and upper steel bars (4). The opposite ends of the lower steel bars (3) and upper steel bars (4) are fixedly connected with screw heads (6). One end of the screw head (6) passes through the connecting groove (2) and is threaded with a nut (7). A conical ring (8) is symmetrically fixedly connected to one end of the I-beam flange cylinder (1). The ends of the lower steel bars (3) and upper steel bars (4) abut against the conical ring (8).

2. The high-efficiency splicing structure of a cast-in-place pile according to claim 1, characterized in that: An extended inclined surface (9) is provided at one end of the connecting groove (2).

3. The high-efficiency splicing structure of a cast-in-place pile according to claim 1, characterized in that: A gasket (10) is fitted onto one end of the screw head (6), and the gasket (10) is installed between the nut (7) and the I-beam flange (1).

4. The high-efficiency splicing structure of a cast-in-place pile according to claim 1, characterized in that: The outer periphery of the I-beam flange cylinder (1) is fitted with a fixing ring (11), and a positioning ring (12) is fixedly connected to the top of the fixing ring (11). Multiple fixing holes (13) are evenly opened at one end of the fixing ring (11), and a fixing steel fork (14) is inserted into the inside of the fixing hole (13).

5. The high-efficiency splicing structure of a cast-in-place pile according to claim 4, characterized in that: The inner side of the positioning ring (12) is provided with an inner thread groove (15), and the inner thread groove (15) is connected to a threaded ring (16). The inner threaded ring (16) is uniformly and fixedly connected to a plurality of connecting rods (17) that are fixedly connected to the I-beam flange (1).

6. The high-efficiency splicing structure of a cast-in-place pile according to claim 5, characterized in that: The top of the screw ring (16) is fixedly connected to an annular knob (18).

7. The efficient pile splicing structure for cast-in-place piles according to claim 4, characterized in that: The bottom of the fixing ring (11) is fixedly connected to a support cylinder (19), which is sleeved around the lower reinforcing bar (3).

8. The high-efficiency splicing structure of a cast-in-place pile according to claim 1, characterized in that: The surfaces of the I-beam flange (1), screw head (6), and nut (7) are all coated with a polyurethane waterproof coating.

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