Prestressed concrete pipe pile

Abstract

The utility model discloses a prestressed concrete pipe pile, including pipe pile main part, the upper end fixedly connected with upper connecting ring of pipe pile main part, the lower end fixedly connected with lower connecting ring of pipe pile main part, the upper end of upper connecting ring is equipped with a plurality of notched slots, the lower end fixedly connected with a plurality of arc inserts of lower connecting ring, guiding mechanism, the guiding mechanism is used for the steady insertion of arc insert in notched slot, the number of arc insert is same with the number of notched slot, and is matched, the guiding mechanism includes the annular guide groove of setting in the upper end of upper connecting ring, the lower end fixedly connected with the guide ring of lower connecting ring, the actual use of this pipe pile, and the connecting place of every two pipe piles adopts the cooperation of a plurality of arc inserts and notched slots, and the gap produced after contact is big, so that the overall length of welding is improved when subsequent welding, relative to the contact of the present two end faces flush, can effectively improve the actual welding strength.

Description

Technical Field

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

[0002] In the field of construction engineering, prestressed concrete pipe piles are widely used in various foundation projects due to their advantages such as high strength and good durability. During the actual use of pipe piles, the connection between adjacent piles is crucial, as it directly affects the stability and bearing capacity of the entire pile foundation.

[0003] Currently, the common method for connecting pipe piles is to weld them after the two ends are flush together. However, this method has certain drawbacks. Because the gap between the contact surfaces is small when the two ends are flush together, the effective length that can be covered by the weld is limited. This results in relatively insufficient strength of the welded joint. Under heavy loads or complex geological conditions, the welded joint is prone to cracking and damage, which in turn affects the reliability and safety of the entire pipe pile foundation and increases the risk of quality problems and accidents in the project. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a prestressed concrete pipe pile. In the actual use of this pipe pile, multiple arc-shaped inserts and notched grooves are used at the connection between every two pipe piles to create a larger gap after contact. This increases the overall length of the weld during subsequent welding, and compared to the existing flush contact at both ends, it can effectively improve the actual welding strength.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A prestressed concrete pipe pile includes a pipe pile body, an upper connecting ring fixedly connected to the upper end of the pipe pile body, and a lower connecting ring fixedly connected to the lower end of the pipe pile body; the upper end of the upper connecting ring is provided with multiple notches, and the lower end of the lower connecting ring is fixedly connected with multiple arc-shaped inserts; a guiding mechanism is provided for the stable insertion of the arc-shaped inserts into the notches.

[0007] Preferably, the number of the arc-shaped inserts is the same as the number of the notch slots, and they are matched.

[0008] Preferably, the guiding mechanism includes an annular guide groove formed at the upper end of the upper connecting ring, and a guide ring is fixedly connected to the lower end of the lower connecting ring.

[0009] Preferably, the guide ring mates with the annular guide groove.

[0010] Preferably, the upper end of the annular guide groove is provided with multiple limiting holes, and the lower end of the guide ring is fixedly connected with multiple limiting pins.

[0011] Preferably, the number of the plurality of limiting pins is the same as the number of the plurality of limiting holes, and they cooperate with each other.

[0012] Preferably, each of the arc-shaped inserts is provided with a first screw hole, and the inner wall of the annular guide groove is provided with a plurality of second screw holes.

[0013] Preferably, the number of the first screw holes and the second screw holes are the same.

[0014] Preferably, a settling groove is provided at the outer opening of each of the first screw holes.

[0015] Preferably, the device further includes a plurality of limiting screws, each of which is used to connect to a corresponding first screw hole and a second screw hole, and a sealing ring is provided on the outer side of each limiting screw.

[0016] Compared with the prior art, the advantages of this utility model are as follows:

[0017] 1. By cooperating with the guide ring and the annular guide groove, the initial positioning of the connection position of the two pipe piles is achieved, avoiding front-back and left-right offset, so that the arc-shaped insert can be stably and accurately inserted into the notch groove, preventing misalignment and improving the connection accuracy. The arc-shaped insert and the notch groove produce a larger contact gap, increasing the overall welding length. Compared with the flush contact of the two ends, it effectively improves the actual welding strength and enhances the tightness of the connection.

[0018] 2. The limiting pin and the limiting hole work together to connect synchronously when the guide ring is inserted into the annular guide groove. After the connection is in place, the relative rotation and movement of the two pipe piles are further restricted, which enhances the stability of the pipe pile connection, effectively improves the actual strength of the pipe pile connection, and ensures the safety of the pipe pile in use.

[0019] 3. A sealing ring is installed on the outside of the limit screw. After tightening, the sealing ring seals the gap between the limit screw and the settling tank, preventing water or humid air from entering the gap and corroding the limit screw, thus extending its service life.

[0020] 4. The settlement groove design ensures that the limit screws will not protrude from the pipe pile connection after being fully tightened, thus ensuring a flat connection, improving the overall appearance quality of the pipe pile, and reducing the impact on the surrounding environment. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present invention;

[0022] Figure 2 for Figure 1 A bottom view;

[0023] Figure 3 This is a schematic diagram of the structure of Embodiment 2 of this utility model;

[0024] Figure 4 for Figure 3 Top view;

[0025] Figure 5 This is a schematic diagram of the structure of Embodiment 5 of this utility model;

[0026] Figure 6 for Figure 5 Enlarged view of point A.

[0027] In the figure: 1 Pipe pile body, 2 Upper connecting ring, 3 Lower connecting ring, 4 Notch groove, 5 Annular guide groove, 6 Guide ring, 7 Arc-shaped insert, 8 Limiting nail, 9 Limiting hole, 10 Limiting screw, 11 First screw hole, 12 Second screw hole, 13 Sealing ring, 14 Settlement groove. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0029] Example 1

[0030] Reference Figure 1-2 A prestressed concrete pipe pile includes a pipe pile body 1, an upper connecting ring 2 fixedly connected to the upper end of the pipe pile body 1, and a lower connecting ring 3 fixedly connected to the lower end of the pipe pile body 1.

[0031] The upper end of the upper connecting ring 2 is provided with multiple notches 4, and the lower end of the lower connecting ring 3 is fixedly connected with multiple arc-shaped inserts 7. The number of arc-shaped inserts 7 is the same as the number of notches 4, and they are matched.

[0032] It also includes a guide mechanism, which is used to stably insert the arc-shaped insert 7 into the notch 4. The guide mechanism includes an annular guide groove 5 opened at the upper end of the upper connecting ring 2, and a guide ring 6 fixedly connected to the lower end of the lower connecting ring 3. The guide ring 6 cooperates with the annular guide groove 5.

[0033] In actual use, when connecting two prestressed concrete pipe piles, the lower connecting ring 3 at the lower end of one pipe pile is first connected to the upper connecting ring 2 at the upper end of the other pipe pile. The guide ring 6 at the lower end of the lower connecting ring 3 gradually approaches the annular guide groove 5 at the upper end of the upper connecting ring 2. With the cooperation of the guide ring 6 and the annular guide groove 5, the initial positioning of the connection position of the two pipe piles is achieved, avoiding the offset in the front-back and left-right directions.

[0034] As the two pipe piles approach each other, the arc-shaped insert 7 on the lower connecting ring 3 is gradually inserted into the corresponding notch 4 on the upper connecting ring 2. During the insertion of the arc-shaped insert 7 into the notch 4, the guide ring 6 continuously slides within the annular guide groove 5 to ensure that the arc-shaped insert 7 can be inserted into the notch 4 stably and accurately, avoiding misalignment and making the connection between the two pipe piles more precise. Then, the contact gap can be welded using welding equipment. This method can provide the actual welding length, thereby improving the actual connection tightness.

[0035] Example 2

[0036] Reference Figure 3-4 The difference between this embodiment and embodiment 1 is that the upper end of the annular guide groove 5 is provided with multiple limiting holes 9, and the lower end of the guide ring 6 is fixedly connected with multiple limiting pins 8. The number of multiple limiting pins 8 is the same as the number of multiple limiting holes 9, and they cooperate with each other.

[0037] As the guide ring 6 is inserted into the annular guide groove 5, the limiting pin 8 at the lower end of the lower connecting ring 3 gradually approaches the corresponding limiting hole 9 at the upper end of the upper connecting ring 2. When the two pipe piles are connected in place, the limiting pin 8 is inserted into the limiting hole 9. Through the cooperation between the limiting pin 8 and the limiting hole 9, the relative rotation and movement between the two pipe piles are further restricted, enhancing the stability of the connection. After the main body 1 of the pipe pile is subjected to force, this part can distribute the force and improve the actual strength.

[0038] Example 3

[0039] Reference Figure 5-6 The difference between this embodiment and embodiment 2 is that each arc-shaped insert 7 is provided with a first screw hole 11, and the inner wall of the annular guide groove 5 is provided with a plurality of second screw holes 12. The number of first screw holes 11 and second screw holes 12 is the same. A settlement groove 14 is provided at the outer opening of each first screw hole 11. It also includes a plurality of limiting screws 10. Each limiting screw 10 is used to connect the corresponding first screw hole 11 and second screw hole 12. A sealing ring 13 is provided on the outer side of each limiting screw 10. With the sealing ring 13 and the settlement groove 14, after the limiting screw 10 is fully tightened, the sealing ring 13 seals the gap between the limiting screw 10 and the settlement groove 14, preventing water or humid air from entering the gap and corroding the limiting screw 10. In addition, the use of the settlement groove 14 can prevent the limiting screw 10 from protruding from the connection of the pipe pile.

[0040] After the arc-shaped insert 7 is inserted into the notch 4 and the limiting pin 8 is inserted into the limiting hole 9, the limiting screw 10 is passed through the first screw hole 11 on the arc-shaped insert 7 and the second screw hole 12 on the inner wall of the annular guide groove 5 in sequence, and the limiting screw 10 is tightened. During the tightening process, the sealing ring 13 on the outside of the limiting screw 10 enters the settlement groove 14 at the outer opening of the arc-shaped insert 7 as the limiting screw 10 is tightened. When the limiting screw 10 is fully tightened, the sealing ring 13 seals the gap between the limiting screw 10 and the settlement groove 14, preventing water or humid air from entering the gap and corroding the limiting screw 10. At the same time, the design of the settlement groove 14 avoids the limiting screw 10 protruding from the connection of the pipe pile, making the connection smoother.

[0041] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A prestressed concrete pipe pile, characterized in that, include: Pipe pile body (1), the upper end of the pipe pile body (1) is fixedly connected to an upper connecting ring (2), and the lower end of the pipe pile body (1) is fixedly connected to a lower connecting ring (3); The upper end of the upper connecting ring (2) is provided with multiple notches (4), and the lower end of the lower connecting ring (3) is fixedly connected with multiple arc-shaped inserts (7); A guiding mechanism is provided for the stable insertion of the arc-shaped insert (7) into the notch (4).

2. A prestressed concrete pipe pile according to claim 1, characterized in that, The number of the arc-shaped inserts (7) is the same as the number of the notch slots (4), and they are matched.

3. A prestressed concrete pipe pile according to claim 1, characterized in that, The guiding mechanism includes an annular guide groove (5) formed on the upper end of the upper connecting ring (2), and a guide ring (6) is fixedly connected to the lower end of the lower connecting ring (3).

4. A prestressed concrete pipe pile according to claim 3, characterized in that, The guide ring (6) is engaged with the annular guide groove (5).

5. A prestressed concrete pipe pile according to claim 3, characterized in that, The upper end of the annular guide groove (5) is provided with multiple limiting holes (9), and the lower end of the guide ring (6) is fixedly connected with multiple limiting pins (8).

6. A prestressed concrete pipe pile according to claim 5, characterized in that, The number of the plurality of limiting pins (8) is the same as the number of the plurality of limiting holes (9), and they cooperate with each other.

7. A prestressed concrete pipe pile according to claim 3, characterized in that, Each of the arc-shaped inserts (7) is provided with a first screw hole (11), and the inner wall of the annular guide groove (5) is provided with a plurality of second screw holes (12).

8. A prestressed concrete pipe pile according to claim 7, characterized in that, The number of the first screw hole (11) and the second screw hole (12) is the same.

9. A prestressed concrete pipe pile according to claim 8, characterized in that, A settling groove (14) is provided at the outer opening of each of the first screw holes (11).

10. A prestressed concrete pipe pile according to claim 9, characterized in that, It also includes multiple limiting screws (10), each of which is used to connect to the corresponding first screw hole (11) and second screw hole (12), and each of the limiting screws (10) is provided with a sealing ring (13) on its outer side.

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