Prefabricated pipe pile forming device for offshore photovoltaic large pipe pile processing

By adopting belt drive and locking pin assembly in the precast pipe pile forming device, the problems of low efficiency and slippage risk of existing devices are solved, and efficient and safe centrifugal forming of pipe piles is achieved.

CN224527565UActive Publication Date: 2026-07-21QINGDAO WUXIAO GRP
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
QINGDAO WUXIAO GRP
Filing Date
2025-08-22
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

Existing centrifugal forming devices for precast pipe piles are inefficient and pose a risk of steel mold slippage, affecting safety and production efficiency.

Method used

A precast pipe pile forming device was designed, comprising a base, a support frame, a rotating shaft, a lower cavity, and an upper cavity. The lower cavity is driven to rotate by a belt drive, and the upper and lower cavities are quickly fixed by a locking pin and a locking assembly to prevent the steel mold from sliding.

Benefits of technology

This improves the efficiency of centrifugal forming, reduces the risk of steel mold slippage, and ensures the safety and efficiency of production.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to prefabricated pipe pile technical field, concretely is prefabricated pipe pile forming device for offshore photovoltaic large -scale pipe pile processing, including base, two groups of support frame are fixedly connected with both ends symmetry of base, bearing is fixedly connected with support frame middle part, the shaft is inserted into the middle part of bearing, bearing one end fixedly connected with lower cavity, pipe pile steel mould body is clamped in lower cavity middle part, the upper cavity is hinged with one end of lower cavity, one end of upper cavity is equipped with the slot, the locking pin body is inserted into the slot, one end of lower cavity is equipped with locking assembly, the prefabricated pipe pile forming device for offshore photovoltaic large -scale pipe pile processing that the utility model puts forward mainly passes through the lower cavity of setting through the belt following motor rotation on the base, the pipe pile steel mould body can be clamped in lower cavity, and the upper cavity of hinging one end is combined, realizes the quick fixing of upper and lower cavity through locking pin body and locking assembly, and the device effectively avoids the risk of traditional centrifugal forming device's inefficiency and slip.
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Description

Technical Field

[0001] This utility model relates to the field of precast pipe pile technology, specifically a precast pipe pile forming device for processing large-scale pipe piles for offshore photovoltaic applications. Background Technology

[0002] With the rapid development of offshore photovoltaic power generation technology, the requirements for supporting structures are increasing. Large pipe piles used for offshore photovoltaics usually adopt prestressed high-strength concrete precast pipe piles with high strength and high durability. Precast pipe piles also have high production efficiency, and the on-site splicing of precast pipe piles is more convenient and efficient than traditional cast-in-place pile construction.

[0003] The existing precast pipe pile production and construction process typically involves first placing the prestressed steel reinforcement cage into the lower steel mold, pouring high-strength concrete, then closing the upper steel mold, and finally placing the steel mold in a centrifugal device for centrifugal forming. High-speed rotation densifies the concrete, forming a hollow structure. Steam curing and demolding are then performed, completing the production of the precast pipe pile. The centrifugal device usually includes two sets of rotatable shafts on a platform, with multiple sets of rotating rings on each shaft. These rings hold the steel mold containing the steel strand cage and concrete. A motor drives one set of shafts to rotate, which in turn drives the steel mold to rotate, performing centrifugal processing. However, this method of placing the steel mold between two sets of rollers for centrifugal rotation results in slippage between the mold and the rollers, leading to low centrifugal efficiency. Furthermore, there is a risk of the mold slipping during high-speed operation. Therefore, there is a lack of a safe and efficient centrifugal forming device for precast pipe piles. Utility Model Content

[0004] The purpose of this invention is to provide a prefabricated pipe pile forming device for the processing of large-scale pipe piles for offshore photovoltaic systems, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a precast pipe pile forming device for processing large-scale offshore photovoltaic pipe piles includes a base, two sets of support frames are symmetrically fixedly connected to both ends of the base, a bearing is fixedly connected to the middle of the support frame, a rotating shaft is inserted into the middle of the bearing, a lower cavity is fixedly connected to one end of the rotating shaft, a driven wheel is fixedly connected to the other end of one set of the rotating shaft, a motor is fixedly connected to one end of the base, a pipe pile steel mold body is clamped in the middle of the lower cavity, an upper cavity is hinged to one end of the lower cavity, a slot is provided at one end of the upper cavity, a locking pin is inserted into the slot, and a locking component is provided at one end of the lower cavity.

[0006] Preferably, one end of the motor is connected to a motor shaft, one end of the motor shaft is fixedly connected to a drive wheel, one end of the drive wheel is fitted with a belt, and the other end of the belt is fitted to a driven wheel.

[0007] Preferably, the steel formwork of the pipe pile is provided with a retaining ring in the middle, and a protrusion is fixedly connected to the lower end of the retaining ring.

[0008] Preferably, the upper cavity has an annular groove in the middle, the lower cavity has an annular groove in the middle, a groove is provided at one end of the annular groove in the lower cavity, a retaining ring is inserted into the annular groove, and a protrusion is inserted into the groove.

[0009] Preferably, the locking pin has a snap-fit ​​hole in the middle, a circular locking hole in the middle, and a first spring at one end.

[0010] Preferably, the locking assembly includes a locking groove located at one end of the lower cavity. A locking pin is inserted into the locking groove. A first pin groove is provided at one end of the locking groove, and a double locking pin is inserted into the first pin groove. A latch is provided at one end of the double locking pin, and the latch engages with a latching hole. A first handle is fixedly connected to one end of the double locking pin. Second springs are symmetrically fixedly connected to both ends of the first handle. The other end of the second springs is fixedly connected to one end of the lower cavity. A second pin groove is provided in the middle of the double locking pin.

[0011] Preferably, a round locking pin is inserted into the second pin groove, a third spring is fixedly connected to the middle of the round locking pin, one end of the third spring is fixedly connected to the inner wall of the second pin groove, one end of the round locking pin is inserted into the round locking hole, and the other end of the round locking pin is fixedly connected to a second handle.

[0012] Compared with the prior art, the beneficial effects of this utility model are: The precast pipe pile forming device proposed in this utility model for processing large-scale pipe piles for offshore photovoltaic applications mainly consists of a lower cavity on the base that rotates with a motor via a belt. The steel mold of the pipe pile can be clamped in the lower cavity, and the upper cavity, which is hinged at one end, is closed. The upper and lower cavities are quickly fixed by locking pins and locking components. This device effectively avoids the low efficiency and slippage risk of traditional centrifugal forming devices. Attached Figure Description

[0013] Figure 1 A schematic diagram of a prefabricated pipe pile forming device used for the processing of large pipe piles for offshore photovoltaic systems; Figure 2 An exploded view of the prefabricated pipe pile forming device used for the processing of large pipe piles for offshore photovoltaic systems; Figure 3 for Figure 2 Enlarged diagram of part A in the middle; Figure 4 A partial structural schematic diagram of a prefabricated pipe pile forming device used for the processing of large pipe piles for offshore photovoltaic applications; Figure 5This is a partial structural cross-sectional view of a prefabricated pipe pile forming device used for the processing of large pipe piles for offshore photovoltaic systems. Figure 6 for Figure 5 Enlarged diagram of part B in the middle; Figure 7 This is another partial structural cross-sectional view of a prefabricated pipe pile forming device used for the processing of large pipe piles for offshore photovoltaic systems.

[0014] In the diagram: 1. Base; 2. Support frame; 3. Bearing; 4. Rotating shaft; 5. Lower cavity; 6. Driven wheel; 7. Motor; 8. Pipe pile steel mold body; 901. Locking groove; 902. First pin groove; 903. Double locking pin; 904. Clip; 905. First handle; 906. Second spring; 907. Second pin groove; 908. Round locking pin; 909. Third spring; 910. Second handle; 10. Upper cavity; 11. Slot; 12. Locking pin body; 13. Motor shaft; 14. Drive wheel; 15. Belt; 16. Snap ring; 17. Protrusion; 18. Ring groove; 19. Groove; 20. Snap-fit ​​insertion hole; 21. Round locking hole; 22. First spring. Detailed Implementation

[0015] The technical solutions in the embodiments of this utility model will be clearly and completely described below. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0016] Please see Figures 1 to 7 This utility model provides the following two technical solutions: Example 1: A precast pipe pile forming device for processing large-scale offshore photovoltaic pipe piles includes a base 1. Two sets of support frames 2 are symmetrically fixedly connected to both ends of the base 1. A bearing 3 is fixedly connected to the middle of the support frame 2. A rotating shaft 4 is inserted into the middle of the bearing 3. A lower cavity 5 is fixedly connected to one end of the rotating shaft 4. A driven wheel 6 is fixedly connected to the other end of one set of rotating shafts 4. A motor 7 is fixedly connected to one end of the base 1. A pipe pile steel mold body 8 is clamped in the middle of the lower cavity 5. An upper cavity 10 is hinged to one end of the lower cavity 5. A slot 11 is provided at one end of the upper cavity 10. A locking pin 12 is inserted into the slot 11. The lower cavity 5 is provided with a locking component at one end; the motor 7 is connected to a motor shaft 13 at one end, and a drive wheel 14 is fixedly connected to one end of the motor shaft 13. A belt 15 is sleeved on one end of the drive wheel 14, and the other end of the belt 15 is sleeved on the driven wheel 6; a retaining ring 16 is provided in the middle of the steel formwork body 8, and a protrusion 17 is fixedly connected to the lower end of the retaining ring 16; an annular groove 18 is provided in the middle of the upper cavity 10, an annular groove 18 is provided in the middle of the lower cavity 5, a groove 19 is provided at one end of the annular groove 18 located in the lower cavity 5, the retaining ring 16 is inserted into the annular groove 18, and the protrusion 17 is inserted into the groove 19.

[0017] In use, the driving wheel 14 and the driven wheel 6 are connected by multiple sets of belts 15. The motor 7 is started to drive the motor shaft 13 and the rotating shaft 4 to rotate, which in turn drives the lower cavity 5 to rotate. Before starting the motor 7 for centrifugal forming, the upper cavity 10, which is hinged to one end of the lower cavity 5, is opened. The steel mold 8 of the pipe pile filled with concrete is hoisted into the lower cavity 5. The retaining ring 16 is aligned with the annular groove 18 and the protrusion 17 and the insertion groove 19 so that the steel mold 8 of the pipe pile will not slide in the lower cavity 5 and the upper cavity 10 during centrifugation. After the steel mold 8 of the pipe pile is placed, the upper cavity 10 is closed. The lower cavity 5 and the upper cavity 10 are fixed by the cooperation of the locking pin 12 and the locking component. Then the motor 7 can be started to carry out the centrifugal forming operation of the precast pipe pile.

[0018] Example 2: Based on Example 1, the locking pin 12 has a snap-fit ​​hole 20 in the middle and a round lock hole 21 in the middle. A first spring 22 is provided at one end of the locking pin 12. The locking assembly includes a locking groove 901, located at one end of the lower cavity 5. A locking pin 12 is inserted into the locking groove 901. A first pin groove 902 is provided at one end of the locking groove 901. A double locking pin 903 is inserted into the first pin groove 902. A locking head 904 is provided at one end of the double locking pin 903, and the locking head 904 snaps into the snap-fit ​​hole 20. The double locking pin 903... One end of the 03 is fixedly connected to a first handle 905. The two ends of the first handle 905 are symmetrically fixedly connected to second springs 906. The other end of the second spring 906 is fixedly connected to one end of the lower cavity 5. The double locking pin 903 has a second pin groove 907 in the middle. A round locking pin 908 is inserted into the second pin groove 907. A third spring 909 is fixedly connected to the middle of the round locking pin 908. One end of the third spring 909 is fixedly connected to the inner wall of the second pin groove 907. One end of the round locking pin 908 is inserted into the round lock hole 21. The other end of the round locking pin 908 is fixedly connected to a second handle 910.

[0019] In use, after closing the upper cavity 10, pull the first handles 905 in sequence and insert the locking pins 12 into the slots 11 and locking grooves 901. When the first spring 22 just touches the bottom of the locking groove 901, the locking head 904 at one end of the double locking pin 903 is aligned with the locking hole 20. At this time, release the first handles 905, and under the squeezing action of the second spring 906, the locking head 904 is inserted into the locking hole 20. Press the locking pins 12 again to squeeze the first spring 22 until the locking head 904 is just locked into the locking hole 20. At this time, the round locking pin 908 is also aligned with the round locking hole 21 and the third Under the compression of spring 909, the locking pin 12 is inserted into the round locking hole 21. At this time, the locking pin 12 is doubly fixed in the lower cavity 5, completing the fixed connection between the lower cavity 5 and the upper cavity 10. Centrifugal forming can then begin. When centrifugation ends, pull the second handle 910 to disengage the round locking pin 908 from the round locking hole 21. At this time, under the compression of the first spring 22, the locking pin 12 disengages the clamp 904. Pull the first handle 905 to completely disengage the clamp 904 from the clamping insertion hole 20, then pull out the locking pin 12 and open the upper cavity 10. Finally, lift out the steel mold body 8 of the pipe pile.

[0020] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A precast pipe pile forming device for processing large-scale offshore photovoltaic pipe piles, comprising a base (1), characterized in that: The base (1) has two sets of support frames (2) symmetrically fixedly connected at both ends. The support frame (2) has a bearing (3) fixedly connected in the middle. The bearing (3) has a rotating shaft (4) inserted in the middle. One end of the rotating shaft (4) is fixedly connected to a lower cavity (5). The other end of one set of the rotating shaft (4) is fixedly connected to a driven wheel (6). One end of the base (1) is fixedly connected to a motor (7). The lower cavity (5) has a steel mold body (8) of a pipe pile inserted in the middle. One end of the lower cavity (5) is hinged to an upper cavity (10). One end of the upper cavity (10) is provided with a slot (11). A locking pin (12) is inserted into the slot (11). One end of the lower cavity (5) is provided with a locking component.

2. The precast pipe pile forming device for processing large offshore photovoltaic pipe piles according to claim 1, characterized in that: One end of the motor (7) is connected to a motor shaft (13), and one end of the motor shaft (13) is fixedly connected to a drive wheel (14). One end of the drive wheel (14) is fitted with a belt (15), and the other end of the belt (15) is fitted with a driven wheel (6).

3. The precast pipe pile forming device for processing large offshore photovoltaic pipe piles according to claim 1, characterized in that: The steel formwork (8) of the pipe pile is provided with a retaining ring (16) in the middle, wherein a protrusion (17) is fixedly connected to one end of the retaining ring (16) located at the bottom.

4. The precast pipe pile forming device for processing large offshore photovoltaic pipe piles according to claim 1, characterized in that: The upper cavity (10) is provided with an annular groove (18) in the middle, and the lower cavity (5) is provided with an annular groove (18) in the middle. A groove (19) is provided at one end of the annular groove (18) in the lower cavity (5). A retaining ring (16) is inserted into the annular groove (18), and a protrusion (17) is inserted into the groove (19).

5. The precast pipe pile forming device for processing large offshore photovoltaic pipe piles according to claim 1, characterized in that: The locking pin (12) has a snap-fit ​​hole (20) in the middle, a round locking hole (21) in the middle, and a first spring (22) at one end of the locking pin (12).

6. The precast pipe pile forming device for processing large offshore photovoltaic pipe piles according to claim 1, characterized in that: The locking assembly includes a locking groove (901) located at one end of the lower cavity (5). A locking pin (12) is inserted into the locking groove (901). A first pin groove (902) is provided at one end of the locking groove (901). A double locking pin (903) is inserted into the first pin groove (902). A locking head (904) is provided at one end of the double locking pin (903). The locking head (904) is engaged with the locking insertion hole (20). A first handle (905) is fixedly connected to one end of the double locking pin (903). A second spring (906) is symmetrically fixedly connected to both ends of the first handle (905). The other end of the second spring (906) is fixedly connected to one end of the lower cavity (5). A second pin groove (907) is provided in the middle of the double locking pin (903).

7. The precast pipe pile forming device for processing large offshore photovoltaic pipe piles according to claim 6, characterized in that: A round locking pin (908) is inserted into the second pin groove (907). A third spring (909) is fixedly connected to the middle of the round locking pin (908). One end of the third spring (909) is fixedly connected to the inner wall of the second pin groove (907). One end of the round locking pin (908) is inserted into the round locking hole (21). The other end of the round locking pin (908) is fixedly connected to a second handle (910).