A prefabricated pipe pile quick connection joint structure

Abstract

The utility model relates to prefabricated pipe pile assembly technical field discloses a prefabricated pipe pile quick -witted joint structure, including main body pipeline, the main body pipeline left -hand end fixedly connected with the butt joint, the butt joint left -hand end fixedly connected with the pasting board, the butt joint outer wall is connected with the adjusting ring through the removal group, the adjusting ring outer wall is equipped with the screw groove no.

Description

Technical Field

[0001] This utility model relates to the field of precast pipe pile assembly technology, and in particular to a quick connection joint structure for precast pipe piles. Background Technology

[0002] As a crucial component of modern foundation engineering, precast pipe piles are manufactured in factories to ensure stable quality. Their connection technology has evolved from traditional welding and flange connections to mechanical quick couplings. Currently, the mainstream mechanical interlocking and grouting sleeve connection technologies significantly improve construction efficiency and quality reliability. With the development of intelligent construction technology, intelligent connection technologies integrating sensing monitoring and self-early warning functions are becoming a new trend, driving the continuous development of precast pipe piles towards high performance and intelligence.

[0003] Traditional precast pipe pile assembly methods mostly use welding for connection. This method requires professional operation, relies on complex welding equipment, and the welding process is time-consuming. Especially on the construction site, the efficiency is further reduced due to environmental factors. In addition, the quality of the welded joint is easily affected by the operator's skill level and the stability of the welding process, which may lead to problems such as welding stress and deformation, affecting the structural stability and service life of the precast pipe pile.

[0004] In response to this technical problem, this application proposes a quick-connect joint structure for precast pipe piles. Utility Model Content

[0005] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a quick-connect joint structure for prefabricated pipe piles. This structure converts rotational motion into radial clamping and axial movement, features a compact design, facilitates on-site installation and operation, and achieves fast and reliable pipe connection. Furthermore, the entire clamping and sealing process can be completed in a short time.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A quick-connect joint structure for precast pipe piles includes a main pipe, a butt joint fixedly connected to the left end of the main pipe, a fitting plate fixedly connected to the left end of the butt joint, an adjusting ring connected to the outer wall of the butt joint via a movable assembly, a threaded groove second opening on the outer wall of the adjusting ring, a transmission ring threadedly connected to the outer wall of the threaded groove second, a transition block second connected to the outer wall of the transmission ring via a fixed assembly, a fixing claw fixedly connected to one end of each transition block second, and a docking pipe detachably connected to one end of each fixing claw.

[0008] Furthermore, the movable assembly includes a first threaded groove on the outer wall of the connector, the inner wall of the adjusting ring is threadedly connected to the outer wall of the first threaded groove, the outer wall of the first threaded groove is configured as a concave helical groove, and the outer wall of the second threaded groove is configured as a convex helical groove.

[0009] Furthermore, the fixing assembly includes a transition ring rotatably connected to the left end of the transmission ring, and a plurality of transition blocks are fixedly connected to the outer wall of the transition ring.

[0010] Furthermore, each of the two ends of the adapter block is rotatably connected to a traction plate, and the left end of the traction plate is rotatably connected to the inner wall of the adapter block.

[0011] Furthermore, several adapter blocks are fixedly connected to the outer wall of the left end of the adjusting ring, and the fixing claws are rotatably connected to the inner wall of the adapter blocks on opposite right sides.

[0012] Furthermore, friction pads are fixedly connected to the inner wall of the left end of each fixed claw, and the inner wall of the right end of each friction pad is in close contact with the outer wall of the docking pipe.

[0013] Furthermore, a sealing ring is fixedly connected to the inner wall of the bonding plate, and a fitting groove is provided on the inner wall of the right end of the docking pipe, the fitting groove being tightly fitted to the outer wall of the sealing ring.

[0014] This utility model has the following beneficial effects:

[0015] In this invention, during the rapid connection of precast pipe piles, after the mating plate at the joint of the main pipe is aligned and tightly fitted with the mating groove of the connecting pipe, the rotating adjusting ring drives the transmission ring to move axially through its spiral groove. This movement is then driven by the adapter ring and adapter block to the traction plate, causing the six sets of fixed claws to retract synchronously. The friction pads on the inner side of the claws quickly clamp the outer wall of the pipe, while simultaneously pushing the sealing ring of the connecting pipe and the main pipe to fit tightly together, ensuring a tight connection. This achieves a rapid and reliable pipe connection, and the entire clamping and sealing process can be completed in a short time. Attached Figure Description

[0016] Figure 1 This is a perspective view of a quick-connect joint structure for prefabricated pipe piles proposed in this utility model;

[0017] Figure 2 This is a half-sectional view of the main pipeline of a prefabricated pipe pile quick connection joint structure proposed in this utility model;

[0018] Figure 3 This is a half-sectional view of the butt joint of a precast pipe pile quick connection joint structure proposed in this utility model;

[0019] Figure 4 This is a half-sectional view of the adjusting ring of a precast pipe pile quick connection joint structure proposed in this utility model.

[0020] Legend:

[0021] 1. Main pipe; 2. Connector; 3. Adhesive plate; 4. Threaded groove one; 5. Adjusting ring; 6. Threaded groove two; 7. Transmission ring; 8. Adapter ring; 9. Adapter block one; 10. Traction plate; 11. Adapter block two; 12. Adapter block three; 13. Fixing claw; 14. Friction pad; 15. Sealing ring; 16. Connecting pipe; 17. Fitting groove. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Reference Figure 1 and Figure 3 This utility model provides an embodiment of a precast pipe pile quick connection joint structure, including a main pipe 1, a butt joint 2 fixedly connected to the left end of the main pipe 1, a fitting plate 3 fixedly connected to the left end of the butt joint 2, an adjusting ring 5 connected to the outer wall of the butt joint 2 via a movable assembly, the movable assembly including a screw groove 4 located on the outer wall of the butt joint 2, the inner wall of the adjusting ring 5 being threadedly connected to the outer wall of the screw groove 4, the outer wall of the screw groove 4 being a concave helical groove, and the outer wall of the screw groove 6 being a convex helical groove, so that the force required to rotate the adjusting ring 5 is greater than the force required to rotate the transmission ring 7, a sealing ring 15 fixedly connected to the inner wall of the fitting plate 3, a fitting groove 17 being provided on the inner wall of the right end of the butt pipe 16, the fitting groove 17 being tightly fitted to the outer wall of the sealing ring 15, and friction pads 14 being fixedly connected to the inner wall of the left end of the fixed claws 13, the inner wall of the right end of the friction pads 14 being tightly fitted to the outer wall of the butt pipe 16.

[0024] Specifically: In the quick-connect joint structure of precast pipe piles, when the adjusting ring 5 is rotated, the spiral groove 4 on its inner wall engages with the threaded connection on the outer circumference of the transmission ring 7, driving the transmission ring 7 to move axially through the threaded transmission. The transmission ring 7 is hinged to the traction plate 10 through the adapter block 9. The other end of the traction plate 10 is connected to the fixed claw 13 by the inclined surface engagement adapter block 12. This linkage mechanism can convert rotational motion into radial clamping action. The friction pad 14 provided on the inner side of the fixed claw 13 is made of high-friction coefficient rubber composite material with a friction coefficient μ≥0.6. Under the action of axial force, radial displacement is generated, so that the friction pad 14 is tightly attached to the outer wall of the connecting pipe 16. At the same time, the sealing ring 15 at the end of the main pipe 1 is made of EPDM rubber with a compression permanent deformation of ≤15%. When the fixing claw 13 completes the displacement, it can ensure that the end face of the connecting pipe 16 and the sealing ring 15 form a contact pressure of 0.3-0.5MPa, thereby achieving a reliable sealing connection. This structure realizes a fast and reliable pipe connection through thread-inclined surface composite transmission, ensuring that both can be used in practice and guaranteeing their service life.

[0025] Reference Figure 2 and Figure 4 The outer wall of the adjusting ring 5 has a second threaded groove 6, and the outer wall of the second threaded groove 6 is threadedly connected to a transmission ring 7. The outer wall of the transmission ring 7 is connected to a second adapter block 11 via a fixed assembly. Each of the two adapter blocks 11 has a fixed claw 13 fixedly connected to one opposite end. Each of the fixed claws 13 has a docking pipe 16 detachably connected to one opposite end. The fixed assembly includes an adapter ring 8 rotatably connected to the left end of the transmission ring 7. Several first adapter blocks 9 are fixedly connected to the outer wall of the adapter ring 8. Each of the first adapter blocks 9 has a traction plate 10 rotatably connected to one opposite end. The left end of the traction plate 10 is rotatably connected to the inner wall of the second adapter block 11. Several third adapter blocks 12 are fixedly connected to the outer wall of the left end of the adjusting ring 5. The right side of the opposite end of the fixed claw 13 is rotatably connected to the inner wall of the third adapter block 12.

[0026] Specifically: In the precast pipe pile quick connection joint structure, when the fitting plate 3 set at the butt joint 2 at the end of the main pipe 1 and the annular fitting groove 17 processed at the end of the connecting pipe 16 achieve preliminary alignment and fitting, the axial pre-positioning of the pipe is completed. At this time, rotating the adjusting ring 5 drives the transmission ring 7 to generate axial displacement. The transmission ring 7 is hinged to the traction plate 10 through six evenly distributed transition blocks 9 on the transition ring 8. The other end of the traction plate 10 forms a rotating pair with the transition block 3 12 of the fixed claw 13 through the transition block 2 11. This linkage mechanism converts the axial displacement into radial motion, causing the three evenly distributed fixed claws 13 to retract synchronously. The friction pad 14 of the high friction coefficient rubber composite material on the inner side of the claw bites the outer wall of the connecting pipe 16 with a clamping force of ≥5kN. The surface roughness Ra of the connecting pipe 16 is ≤3.2μm. The whole process is realized through thread-inclined plane composite transmission. It only takes 2-3 rotations from the start of rotating the adjusting ring 5 to the completion of clamping. After clamping, the coaxiality deviation of the pipe is low, which meets the requirements of rapid construction.

[0027] Working principle: When the mating plate 3 at the joint 2 connected to the main pipe 1 is tightly fitted with the fitting groove 17 at the connecting pipe 16, the connecting pipe 16 and the main pipe 1 are initially connected. When the transmission ring 7 connected to the adjusting ring 5 is rotated, the adapter ring 8 connected to the transmission ring 7 pulls the traction plate 10 through the adapter block 1 9, and the traction plate 10 pulls the fixed claw 13 to retract through the adapter block 2 11. With the cooperation of the adapter block 3 12, the fixed claw 13 opens and closes. This allows the fixed claw 13 to retract relatively during the docking assembly process to fit the outer diameter of the docking pipe 16, enabling the fixed claw 13 to quickly clamp the outer diameter of the docking pipe 16. When the adjusting ring 5 is rotated, the screw groove 4 can drive the transmission ring 7, the traction plate 10 and the fixed claw 13 to move to one side, allowing the friction pad 14 at the fixed claw 13 to fit against the outer diameter of the docking pipe 16. This facilitates the fixed claw 13 to drive the docking pipe 16 to fully fit with the sealing ring 15 at the main pipe 1, ensuring the airtightness of the connection between the two.

[0028] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A quick-connect joint structure for precast pipe piles, comprising a main pipe (1), characterized in that: The main pipe (1) is fixedly connected to a connector (2) at the left end. The connector (2) is fixedly connected to a fitting plate (3) at the left end. The outer wall of the connector (2) is connected to an adjusting ring (5) via a movable assembly. The outer wall of the adjusting ring (5) is provided with a second threaded groove (6). The outer wall of the second threaded groove (6) is threadedly connected to a transmission ring (7). The outer wall of the transmission ring (7) is connected to a second adapter block (11) via a fixed assembly. The two adapter blocks (11) are fixedly connected to a fixed claw (13) at opposite ends. The two fixed claws (13) are detachably connected to a connecting pipe (16) at opposite ends.

2. The quick-connect joint structure for precast pipe piles according to claim 1, characterized in that: The movable assembly includes a first screw groove (4) located on the outer wall of the connector (2), the inner wall of the adjusting ring (5) is threaded to the outer wall of the first screw groove (4), the outer wall of the first screw groove (4) is configured as a concave helical groove, and the outer wall of the second screw groove (6) is configured as a convex helical groove.

3. The quick-connect joint structure for precast pipe piles according to claim 1, characterized in that: The fixed assembly includes a transition ring (8) rotatably connected to the left end of the transmission ring (7), and a plurality of transition blocks (9) are fixedly connected to the outer wall of the transition ring (8).

4. The quick-connect joint structure for precast pipe piles according to claim 3, characterized in that: Each of the two ends of the first (9) of the adapter block is rotatably connected to a traction plate (10), and the left end of the traction plate (10) is rotatably connected to the inner wall of the second (11) of the adapter block.

5. The quick-connect joint structure for precast pipe piles according to claim 1, characterized in that: The outer wall of the left end of the adjusting ring (5) is fixedly connected to several transition blocks three (12), and the fixing claws (13) are rotatably connected to the inner wall of the transition blocks three (12) on the opposite right side.

6. The quick-connect joint structure for precast pipe piles according to claim 1, characterized in that: The inner wall of the left end of each fixed claw (13) is fixedly connected with a friction pad (14), and the inner wall of the right end of the friction pad (14) is in close contact with the outer wall of the docking pipe (16).

7. The quick-connect joint structure for precast pipe piles according to claim 1, characterized in that: A sealing ring (15) is fixedly connected to the inner wall of the bonding plate (3), and a fitting groove (17) is opened on the inner wall of the right end of the docking pipe (16). The fitting groove (17) is tightly attached to the outer wall of the sealing ring (15).

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