Prestressed pipe pile end plate outer sleeve connecting device

Abstract

The utility model relates to a prestressed pipe pile end plate outer sleeve connecting device which comprises a pipe pile and a circular ring sleeve provided with internal threads, pipe pile end plates are arranged at the two ends of the pipe pile, external threads are arranged on the peripheral wall of each pipe pile end plate, and after the adjacent pipe piles are aligned, the external threads of the adjacent pipe pile end plates are screwed and fixed through the circular ring sleeve. The upper end face of the annular sleeve is fixedly connected with the pipe pile end plate at the lower end of the upper-section pipe pile in a fillet weld mode, and the lower end face of the annular sleeve is fixedly connected with the pipe pile end plate at the upper end of the lower-section pipe pile in a fillet weld mode; the external threads are arranged on the peripheral wall of the pipe pile end plate of the pipe pile, after the two sections of pipe piles are aligned in place, the sleeve is manually rotated, so that the two sections of pipe piles are connected in a meshed mode through the threads, and after the sleeve is rotated in place, the two sections of pipe piles are fixed in a fillet weld mode; the method has the advantages that the construction speed is high, the hammering influence is small, and the pile foundation quality can be ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of prestressed pipe piles, and in particular relates to a prestressed pipe pile end plate outer sleeve connection device. Background Art

[0002] Prestressed pipe piles are widely used in engineering due to their low cost, fast construction speed, and no mud discharge. Because the length of prestressed pipe piles is standardized and the depth of the pile hole is determined according to the construction requirements, prestressed pipe piles usually need to be extended. The commonly used connection method of prestressed pipe piles is: the end plates of the two pipe piles are connected by three weldings through the groove weld.

[0003] This connection method has the following defects: 1. Since welding needs to be done in three steps, it takes some time after welding before the piles can be sunk, so the construction speed is slow; 2. For hammer piles with harder geology, irregular cracks are easily formed on the welds, affecting the quality of the pile foundation. Utility Model Content

[0004] The utility model aims to overcome the shortcomings of the prior art and provide a prestressed pipe pile end plate outer sleeve connection device which has fast construction speed and little influence on hammering.

[0005] The purpose of the utility model is achieved through the following technical scheme. The prestressed pipe pile end plate outer sleeve connection device comprises a pipe pile and an annular sleeve with an internal thread. Both ends of the pipe pile are provided with pipe pile end plates. The outer peripheral wall of the pipe pile end plate is provided with an external thread. After the adjacent pipe piles are aligned, the external threads of the adjacent pipe pile end plates are screwed and fixed by the annular sleeve, and the upper end face of the annular sleeve is connected and fixed to the pipe pile end plate at the lower end of the pipe pile of the upper section by a fillet weld, and the lower end face of the annular sleeve is connected and fixed to the pipe pile end plate at the upper end of the pipe pile of the lower section by a fillet weld.

[0006] The beneficial effects of the utility model are as follows: compared with the prior art, an external thread is provided on the outer peripheral wall of the pipe pile end plate of the pipe pile, and after the two sections of the pipe pile are aligned in place, a manually rotated sleeve is used to make the two sections of the pipe pile connected by threaded engagement, and after the sleeve is rotated into place, it is fixed by a fillet weld; it has the advantages of fast construction speed, little impact on hammering, and can ensure the quality of the pile foundation.

[0007] Preferably, the height of the pipe pile end plates of adjacent pipe piles after being fitted together is equal to the height of the annular sleeve; in this way, during the pile sinking process of the prestressed pipe piles after connection, mud and residue will not be embedded between the annular sleeve and the pipe pile wall, and the force will not be concentrated on the end face of the annular sleeve, making the pile sinking smoother.

[0008] Preferably, the spiral direction of the external thread on the pipe pile end plate at the lower end of the pipe pile in the upper section is consistent with the spiral direction of the external thread on the pipe pile end plate at the upper end of the pipe pile in the lower section; such an arrangement makes it more convenient for the annular sleeve to engage with the pipe pile end plate threads between the upper and lower sections of the pipe pile.

[0009] Preferably, the pipe pile includes a pile sleeve, prestressed main reinforcement and end plate anchor reinforcement, and the end plate anchor reinforcement, prestressed main reinforcement and pile sleeve are arranged in sequence from the radial center of the pipe pile to the outside, the end plate anchor reinforcement and the pipe pile end plate are vertically distributed and fixed by fillet welds, the pile sleeve is vertically distributed and fixed by fillet welds, the prestressed main reinforcement and the pipe pile end plate are vertically distributed and connected by slots; through the arrangement of the above structure, not only the structure of the pipe pile is simpler, and the forming of the pipe pile after pouring concrete is more convenient, and the stability after forming is also better.

[0010] Preferably, the outer side wall of the pile hoop is connected and fixed to the pipe pile end plate and the annular sleeve by means of fillet welds; this makes the three more secure after connection, greatly ensuring the pile foundation quality after the prestressed pipe piles are connected.

[0011] Preferably, the fillet weld is a circumferential welding along the circumference of the pipe pile; through the above welding method, irregular cracks are not easy to occur during the hammering of piles in hard geology, which greatly ensures the quality of the pile foundation; and the welding can be completed in one time, which greatly improves the connection efficiency between prestressed pipe piles.

[0012] Preferably, one end of the prestressed main reinforcement is provided with a wedge-shaped connecting block, and the end face of the pipe pile end plate matched with the wedge-shaped connecting block is provided with a wedge-shaped connecting groove, the prestressed main reinforcement passes through the wedge-shaped connecting groove of the pipe pile end plate, and the wedge-shaped connecting block provided at one end of the prestressed main reinforcement is abutted against the wedge-shaped connecting groove of one of the pipe pile end plates of the pipe pile, and the other end of the prestressed main reinforcement is located in the wedge-shaped connecting groove of the other pipe pile end plate of the pipe pile, and is welded and fixed to the other end of the prestressed main reinforcement by the wedge-shaped connecting block; through the above-mentioned connection method, the connection between the prestressed main reinforcement and the pipe pile end plate is more convenient, and the stability after connection is better, and it is not easy to detach, thereby ensuring that the pipe pile end plate is not easy to fall off after concrete is poured into the pipe pile. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 The utility model is a schematic diagram of the structure of the prestressed pipe pile end plate outer sleeve connection device.

[0014] Figure 2 yes Figure 1 A is an enlarged structural diagram of FIG.

[0015] The numbers in the accompanying drawings are: 1, pipe pile; 2, circular sleeve; 3, pipe pile end plate; 11, pile sleeve; 12, prestressed main reinforcement; 13, end plate anchor reinforcement; 14, wedge-shaped connecting block; 21, internal thread; 31, external thread; 32, wedge-shaped connecting groove. DETAILED DESCRIPTION

[0016] The following is a detailed introduction to the utility model in conjunction with the accompanying drawings: Figure 1 , 2 As shown, the utility model includes a pipe pile 1 and an annular sleeve 2 with an internal thread 21, both ends of the pipe pile 1 are provided with a pipe pile end plate 3, the outer peripheral wall of the pipe pile end plate 3 is provided with an external thread 31, after the adjacent pipe piles 1 are aligned, the external threads 31 of the adjacent pipe pile end plates 3 are screwed and fixed by the annular sleeve 2, and the upper end surface of the annular sleeve 2 is connected and fixed to the pipe pile end plate 3 at the lower end of the pipe pile 1 of the upper section by a fillet weld, and the lower end surface of the annular sleeve 2 is connected and fixed to the pipe pile end plate 3 at the upper end of the pipe pile 1 of the lower section by a fillet weld.

[0017] The height of the pipe pile end plates 3 of the adjacent pipe piles 1 after being attached is equal to the height of the annular sleeve 2 .

[0018] The spiral direction of the external thread 31 on the pipe pile end plate 3 at the lower end of the pipe pile 1 of the upper section is consistent with the spiral direction of the external thread 31 on the pipe pile end plate 3 at the upper end of the pipe pile 1 of the lower section.

[0019] The pipe pile 1 includes a pile sleeve 11, a prestressed main reinforcement 12 and an end plate anchor reinforcement 13. The end plate anchor reinforcement 13, the prestressed main reinforcement 12 and the pile sleeve 11 are arranged in sequence from the radial center of the pipe pile 1 to the outside. The end plate anchor reinforcement 13 is vertically distributed with the pipe pile end plate 3 and is fixed by a fillet weld. The pile sleeve 11 is vertically distributed with the pipe pile end plate 3 and is fixed by a fillet weld. The prestressed main reinforcement 12 is vertically distributed with the pipe pile end plate 3 and is connected by a slot.

[0020] The outer wall of the pile hoop 11 is connected and fixed to the pipe pile end plate 3 and the annular sleeve 2 by means of fillet welds.

[0021] The fillet weld is welded in a circumferential manner along the circumference of the pipe pile 1 .

[0022] A wedge-shaped connecting block 14 is provided at one end of the prestressed main reinforcement 12, and a wedge-shaped connecting groove 32 is provided at the end surface of the pipe pile end plate 3 matched with the wedge-shaped connecting block 14. The prestressed main reinforcement 12 passes through the wedge-shaped connecting groove 32 of the pipe pile end plate 3, and the wedge-shaped connecting block 14 provided at one end of the prestressed main reinforcement 12 abuts against the wedge-shaped connecting groove 32 of one of the pipe pile end plates 3 of the pipe pile 1. The other end of the prestressed main reinforcement 12 is located in the wedge-shaped connecting groove 32 of the other pipe pile end plate 3 of the pipe pile 1, and is welded and fixed to the other end of the prestressed main reinforcement 12 through the wedge-shaped connecting block 14.

[0023] The pile connection process of the utility model is as follows: first, after the two sections of the pipe pile 1 are aligned in place, the pipe pile end plate 3 at the lower end of the upper section of the pipe pile 1 is aligned with the pipe pile end plate 3 at the upper end of the lower section of the pipe pile 1; then, the circular sleeve 2 is aligned with the external thread 31 on the pipe pile end plate 3 and manually rotated to make the two sections of the pipe pile connected by thread engagement; finally, the outer side wall of the pile sleeve 11 and the pipe pile end plate 3 and the circular sleeve 2 are connected and fixed by fillet welding.

[0024] The above are only specific implementations of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. A prestressed pipe pile end plate outer sleeve connection device, comprising a pipe pile (1) and an annular sleeve (2) provided with an internal thread (21), characterized in that: Both ends of the pipe pile (1) are provided with a pipe pile end plate (3), and the outer peripheral wall of the pipe pile end plate (3) is provided with an external thread (31). After the adjacent pipe piles (1) are aligned, the external threads (31) of the adjacent pipe pile end plates (3) are screwed and fixed through the circular sleeve (2), and the upper end surface of the circular sleeve (2) is connected and fixed to the pipe pile end plate (3) at the lower end of the pipe pile (1) of the upper section by means of a fillet weld, and the lower end surface of the circular sleeve (2) is connected and fixed to the pipe pile end plate (3) at the upper end of the pipe pile (1) of the lower section by means of a fillet weld.

2. The prestressed pipe pile end plate outer sleeve connection device according to claim 1, characterized in that: The height of the pipe pile end plates (3) of the adjacent pipe piles (1) after being attached is equal to the height of the annular sleeve (2).

3. The prestressed pipe pile end plate outer sleeve connection device according to claim 1 or 2, characterized in that: The spiral direction of the external thread (31) on the pipe pile end plate (3) at the lower end of the pipe pile (1) of the upper section is consistent with the spiral direction of the external thread (31) on the pipe pile end plate (3) at the upper end of the pipe pile (1) of the lower section.

4. The prestressed pipe pile end plate outer sleeve connection device according to claim 1, characterized in that: The pipe pile (1) comprises a pile sleeve (11), a prestressed main rib (12) and an end plate anchor rib (13). The end plate anchor rib (13), the prestressed main rib (12) and the pile sleeve (11) are sequentially arranged outward from the radial center of the pipe pile (1). The end plate anchor rib (13) and the pipe pile end plate (3) are vertically distributed and fixed by fillet welds. The pile sleeve (11) and the pipe pile end plate (3) are vertically distributed and fixed by fillet welds. The prestressed main rib (12) and the pipe pile end plate (3) are vertically distributed and connected by slots.

5. The prestressed pipe pile end plate outer sleeve connection device according to claim 4, characterized in that: The outer side wall of the pile hoop (11) is connected and fixed to the pipe pile end plate (3) and the annular sleeve (2) by means of fillet welds.

6. The prestressed pipe pile end plate outer sleeve connection device according to claim 1 or 5, characterized in that: The fillet weld is a circumferential weld along the circumference of the pipe pile (1).

7. The prestressed pipe pile end plate outer sleeve connection device according to claim 4, characterized in that: A wedge-shaped connection block (14) is provided at one end of the prestressed main reinforcement (12); a wedge-shaped connection groove (32) is provided at the end surface of the pipe pile end plate (3) matched with the wedge-shaped connection block (14); the prestressed main reinforcement (12) passes through the wedge-shaped connection groove (32) of the pipe pile end plate (3); and the wedge-shaped connection block (14) provided at one end of the prestressed main reinforcement (12) abuts against the wedge-shaped connection groove (32) of one of the pipe pile end plates (3) of the pipe pile (1); the other end of the prestressed main reinforcement (12) is located in the wedge-shaped connection groove (32) of the other pipe pile end plate (3) of the pipe pile (1) and is welded and fixed to the other end of the prestressed main reinforcement (12) through the wedge-shaped connection block (14).

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