Concrete pipe pile forming mold for hydraulic engineering and forming method thereof

Abstract

This invention relates to the field of concrete processing technology and discloses a molding die for concrete pipe piles used in water conservancy projects and its molding method, comprising a main body. When the centrifugal shaft begins to rotate, the outer surface of the centrifugal shaft drives the positioning plate to rotate. As the positioning plate rotates, the arc-shaped spring in the contracted portion pushes the telescopic rod to reset, thereby applying an inclined thrust to the fixing ring, thus assisting the rotation of the fixing ring and the die. When the arc-shaped spring at the top of the positioning plate contracts, the arc-shaped spring at the bottom of the positioning plate is stretched by the tension of the moving positioning plate, accumulating potential energy. This reduces the slippage that can occur when the centrifugal shaft drives the die to rotate on a rotating device due to the weight of the die, ensuring the stability of the centrifugal shaft driving the die's rotation and improving the quality of the die during pipe pile production.

Description

Technical Field

[0001] This invention relates to the field of concrete processing technology, specifically to a molding die for concrete pipe piles used in water conservancy projects and its molding method. Background Technology

[0002] The mold is a split cylindrical steel structure with ring-shaped reinforcing ribs arranged around the outer wall to improve the overall structural rigidity. The whole can be coaxially sleeved on the outside of the forming drive shaft and is used for on-site prefabrication of large-diameter concrete pipe piles and drainage culverts in water conservancy projects. During the use of this device, workers first place the steel reinforcement frame inside the mold. Then, the device hoists the mold onto the rotating equipment. When the rotating equipment starts, it drives the mold to rotate through the internal centrifugal shaft. While the mold is rotating, workers pour concrete into the mold so that the concrete adheres to the steel reinforcement frame after being swung around. At the same time, as the mold drives the concrete to rotate, the concrete is reinforced by the compression of the centrifugal shaft of the rotating equipment, thus processing the concrete into pipe piles. However, when the centrifugal shaft of the rotating equipment drives the mold to rotate, the large weight of the mold often causes the centrifugal shaft to slip, affecting the stability of the centrifugal shaft driving the mold to rotate and the quality of the mold when producing pipe piles. Summary of the Invention

[0003] The purpose of this invention is to provide a molding die for concrete pipe piles used in water conservancy projects and a molding method thereof, so as to solve the problems mentioned in the background art.

[0004] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution: This invention relates to a molding die for concrete pipe piles used in water conservancy projects, comprising a main body and further comprising: Auxiliary mechanism, which is installed on the side wall of the main body, is used to assist the operation of the internal components of the main body when the main body rotates; The swinging mechanism is installed on the side wall of the main body and is used to throw the concrete that falls into the swinging mechanism outward when the main body rotates.

[0005] Furthermore, the main body includes: A rotating component is installed at the bottom of the main body and is used to rotate after being fixed by the other mechanisms. A shrinking assembly is installed on the side wall of the rotating assembly of the main body and is used to shrink during the installation of the rotating assembly.

[0006] Furthermore, the auxiliary mechanisms include: The push component is installed on the inner wall of the retractable component and is used to apply thrust to the other components inside the auxiliary mechanism when the rotating component rotates; A shaking component is installed on the side wall of the pushing component and is used to shake when pushed by the pushing component.

[0007] Furthermore, the swinging mechanism includes: A rotating assembly is installed on the side wall of a rotating component and is used to rotate under the influence of the rotation of the rotating component.

[0008] Furthermore, the rotating assembly includes a semi-circular plate fixedly connected to the bottom of the main body, with annular plates fixedly connected to the front and back of the semi-circular plate.

[0009] Furthermore, the shrinkage assembly includes a fixing ring fixedly connected to the side wall of the annular plate, and a number of arc-shaped springs are fixedly connected to the inner wall of the fixing ring; A rotating ring is fixedly connected to the inner wall of several arc-shaped springs, and a positioning plate is rotatably connected to the outer surface of the rotating ring; Several telescopic rods are rotatably connected to the outer surface of the rotating ring; In the case of the curved spring, the end of several telescopic rods away from the rotating ring is rotatably connected to the inner wall of the fixed ring. The telescopic rod is installed inside the arc spring, and the telescopic rod is in a half-extended state.

[0010] Furthermore, the actuating component includes several fixing plates fixedly connected to the inner wall of the fixing ring, with positioning pieces fixedly connected to the side walls of the fixing plates, and springs fixedly connected to the side walls of the positioning pieces.

[0011] Furthermore, the shaking assembly includes a fixed shaft fixedly connected to the side wall of the fixed plate, a push bar is provided on the outer surface of the fixed shaft, and a striking block is fixedly connected to the side of the push bar near the fixed shaft; Among them, the sidewalls of several push bars are rotatably connected to the outer surface of the rotating ring, and the side of the push bar near the fixed shaft is wavy; The outer surface of the fixed shaft contacts the side wall of the push bar.

[0012] Furthermore, the rotating assembly includes a rotating plate fixedly connected to the outer surface of the positioning plate, and a number of scrapers are fixedly connected to the side wall of the rotating plate, with a fixing frame provided on the side wall of the scrapers. The rotating plate is located inside the fixed frame but does not contact it. The side wall of the fixed frame is fixedly connected to the side wall of the annular plate, and a notch is provided at the bottom of the fixed frame.

[0013] Furthermore, a molding die for concrete pipe piles used in water conservancy projects and its molding method are disclosed. The molding die for concrete pipe piles used in water conservancy projects includes the following steps: S1: Splicing and fixing: Before use, the staff first fixes the bottom of the main body to the top of the semi-circular plate with bolts, and at the same time places the steel frame inside the mold, and then lifts the mold and places it on the equipment that drives it to rotate. S2: Centrifugal molding: After the mold is placed, start the rotating equipment. When the equipment is running, it will drive the main body and the semi-circular plate to rotate rapidly. When the mold is rotating, the construction personnel will put concrete into the mold, so that the concrete will be shaped by centrifugal force when the mold is rotating. S3: Demolding and Piling: After the mold rotates to make the internal concrete into a tubular shape, wait for a period of time. When the concrete has initially set, lift the mold off and remove it. Then separate the main body from the semi-circular plate and take out the formed pipe pile.

[0014] The present invention has the following beneficial effects: (1) In this invention, when the centrifugal shaft starts to rotate, the outer surface of the centrifugal shaft will drive the positioning plate to rotate. When the positioning plate rotates, the arc spring of the contracted part will push the telescopic rod to reset, thereby applying an inclined thrust to the fixed ring, thus assisting the rotation of the fixed ring and the mold. When the part of the arc spring at the top of the positioning plate contracts, the arc spring at the bottom of the positioning plate will be stretched by the pulling force of the positioning plate and accumulate potential energy. This reduces the slippage that occurs when the centrifugal shaft drives the mold to rotate due to the weight of the mold when the centrifugal shaft drives the mold to rotate through the rotating equipment. This ensures the stability of the centrifugal shaft driving the mold to rotate and improves the quality of the mold when producing pipe piles.

[0015] (2) In this invention, when the arc spring is reset, it will push the rotating ring to rotate in the direction of the push bar on the positioning plate. At this time, since the side wall of the push bar is in contact with the side wall of the fixed plate, and the fixed plate is fixed on the inner wall of the fixed ring, when the arc spring is reset, the end near the rotating ring is limited by the fixed plate and the push bar and cannot move. Thus, when the arc spring is reset, it will apply a force to the fixed ring in the same direction as the rotation, thereby assisting the rotation of the mold. This reduces the situation where the force of the arc spring is reset is opposite to the direction of rotation, thus affecting the rotation of the positioning plate. This makes the operation of the positioning plate more continuous and improves the efficiency of the device in pipe pile processing.

[0016] (3) In this invention, when the mold starts to rotate and the worker puts concrete into the mold, some of the scattered concrete will first contact the side wall of the positioning plate. Then, some of the concrete will enter the gap between the rotating plate and the fixed frame through the gap between the positioning plate and the fixed frame and fall downward. This reduces the situation where the gap between the positioning plate and the fixed frame increases due to the movement of the positioning plate when the internal component auxiliary fixing ring is pushed by the movement of the positioning plate and the mold rotation. This prevents some concrete from entering the component and affecting the operation of the component when concrete is put in, so that the internal component of the device can operate smoothly and further improve the quality of the mold when producing pipe piles.

[0017] (4) In this invention, when the striking block swings, it will contact the rotating plate on the outer surface of the positioning plate and strike the rotating plate, causing the rotating plate to vibrate slightly when rotating, thereby shaking off a small amount of concrete adhering to the side wall of the rotating plate to the ground. At the same time, when the rotating plate rotates, the scraper located on its side wall will scrape off the concrete adhering to the inner wall of the fixed frame, thereby keeping the rotating plate and the inside of the fixed frame clean. This reduces the situation where some concrete falls through the gap between the rotating plate and the fixed frame, and the subsequent operation of the rotating plate and the fixed frame is affected by a small amount of concrete adhering to it. This allows the rotating plate to operate better and further improves the efficiency of the device in pipe pile processing.

[0018] Of course, any product implementing this invention does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the overall partial cross-sectional structure of the present invention; Figure 3 This is a partial cross-sectional view of the shrinkage component of the present invention; Figure 4 For the present invention Figure 3 Enlarged view of point A in the middle; Figure 5 This invention promotes the connection relationship diagram of the components; Figure 6 For the present invention Figure 5 Enlarged view of point B in the middle; Figure 7This is a partial cross-sectional view of the rotating component of the present invention; Figure 8 This is a diagram showing the connection relationship of the rotating component of the present invention; Figure 9 This is a partial cross-sectional view of the auxiliary mechanism of the present invention; Figure 10 This is a flowchart of the molding method of the present invention.

[0021] The attached diagram lists the components represented by each number as follows: In the diagram: 1. Main body; 11. Rotating assembly; 111. Semicircular plate; 112. Annular plate; 12. Retracting assembly; 121. Fixed ring; 122. Arc spring; 123. Rotating ring; 124. Positioning plate; 125. Telescopic rod; 2. Auxiliary mechanism; 21. Pushing assembly; 211. Fixed plate; 212. Positioning piece; 213. Spring; 22. Shaking assembly; 221. Fixed shaft; 222. Push bar; 223. Striking block; 3. Swinging mechanism; 31. Rotating assembly; 311. Rotating plate; 312. Scraper; 313. Fixed frame. Detailed Implementation

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

[0023] Please see Figures 1-10 As shown, the present invention is a molding die for concrete pipe piles used in water conservancy projects and a molding method thereof, comprising a main body 1, and further comprising: Auxiliary mechanism 2 is installed on the side wall of the main body 1 to assist the operation of the internal components of the main body 1 when the main body 1 rotates; The swinging mechanism 3 is installed on the side wall of the main body 1 and is used to throw the concrete that falls into the swinging mechanism 3 outward when the main body 1 rotates.

[0024] Entity 1 includes: Rotating component 11 is installed at the bottom of the main body 1 and is used to rotate after being fixed by the other mechanisms. Shrink assembly 12 is installed on the side wall of the rotating assembly 11 of the main body 1 and is used to shrink during the installation of the rotating assembly 11.

[0025] Auxiliary mechanism 2 includes: Push component 21 is installed on the inner wall of retraction component 12 and is used to apply thrust to the other components inside auxiliary mechanism 2 when rotating component 11 rotates; The shaking component 22 is installed on the side wall of the pushing component 21 and is used to shake when pushed by the pushing component 21.

[0026] The swinging mechanism 3 includes: Rotating component 31 is installed on the side wall of rotating component 11 and is used to rotate under the rotation of rotating component 11.

[0027] The rotating assembly 11 includes a semi-circular plate 111 fixedly connected to the bottom of the main body 1. An annular plate 112 is fixedly connected to the front and back of the semi-circular plate 111. First, the workers fix the top of the main body 1 and the semi-circular plate 111 with bolts to complete the assembly of the mold. Then, the steel frame is placed inside the mold. After that, the mold is hoisted onto the rotating equipment by the device.

[0028] The shrinking assembly 12 includes a fixing ring 121 fixedly connected to the side wall of the annular plate 112, and a plurality of arc-shaped springs 122 are fixedly connected to the inner wall of the fixing ring 121. A rotating ring 123 is fixedly connected to the inner wall of several arc-shaped springs 122, and a positioning plate 124 is rotatably connected to the outer surface of the rotating ring 123; Several telescopic rods 125 are rotatably connected to the outer surface of the rotating ring 123; In the case of the arc spring 122, the arc spring 122 is in the normal state, and the ends of several telescopic rods 125 that are away from the rotating ring 123 are rotatably connected to the inner wall of the fixed ring 121. The telescopic rod 125 is installed inside the arc spring 122. When the telescopic rod 125 is in a half-stretched state, as the device is gradually placed on the centrifugal shaft, the inner wall of the positioning plate 124 located inside the fixed ring 121 will contact the outer surface of the centrifugal shaft. Then, under the reaction force of the centrifugal shaft, the positioning plate 124 will be pushed upward. During the upward movement of the positioning plate 124, the rotating ring 123 will be moved.

[0029] The pushing assembly 21 includes several fixed plates 211 fixedly connected to the inner wall of the fixed ring 121. The side wall of the fixed plate 211 is fixedly connected to a positioning piece 212, and the side wall of the positioning piece 212 is fixedly connected to a spring 213. When the arc spring 122 is reset, the end near the rotating ring 123 is limited by the fixed plate 211 and the pushing bar 222 and cannot move, so that the arc spring 122 will apply a force to the fixed ring 121 in the same direction of rotation when it is reset.

[0030] The shaking assembly 22 includes a fixed shaft 221 fixedly connected to the side wall of the fixed plate 211. A push bar 222 is provided on the outer surface of the fixed shaft 221. A striking block 223 is fixedly connected to the side of the push bar 222 near the fixed shaft 221. Among them, the sidewalls of several push bars 222 are rotatably connected to the outer surface of the rotating ring 123, and the side of the push bar 222 near the fixed shaft 221 is wavy; The outer surface of the fixed shaft 221 contacts the side wall of the push bar 222. When the push bar 222 moves, its bottom will move on the outer surface of the fixed shaft 221. Since the bottom of the push bar 222 is wavy, when the push bar 222 moves, it will be pushed by the fixed shaft 221 and swing on the outer surface of the positioning plate 124.

[0031] The rotating assembly 31 includes a rotating plate 311 fixedly connected to the outer surface of the positioning plate 124. Several scrapers 312 are fixedly connected to the side wall of the rotating plate 311, and a fixing frame 313 is provided on the side wall of the scraper 312. The rotating plate 311 is located inside the fixed frame 313 and does not contact it. The side wall of the fixed frame 313 is fixedly connected to the side wall of the annular plate 112. The bottom of the fixed frame 313 has a notch. When the striking block 223 swings, it will contact the rotating plate 311 on the outer surface of the positioning plate 124 and strike the rotating plate 311, causing the rotating plate 311 to vibrate slightly when rotating, thereby shaking off a small amount of concrete adhering to the side wall of the rotating plate 311 onto the ground.

[0032] A molding die for concrete pipe piles used in water conservancy projects and its molding method. The molding die for concrete pipe piles used in water conservancy projects includes the following steps: S1: Splicing and fixing: Before use, the staff first fixes the bottom of the main body 1 to the top of the semi-circular plate 111 with bolts, and at the same time places the steel frame inside the mold, and then lifts the mold and places it on the equipment that drives it to rotate. S2: Centrifugal molding: After the mold is placed, start the rotating equipment. When the equipment is running, it will drive the main body 1 and the semi-circular plate 111 to rotate rapidly. When the mold is rotating, the construction personnel will put concrete into the mold, so that the concrete will be shaped by centrifugal force when the mold is rotating. S3: Demolding and pile removal: After the mold rotates to make the internal concrete into a tubular shape, wait for a period of time. When the concrete has initially set, lift the mold and remove it. Then separate the main body 1 from the semi-circular plate 111 and take out the formed pipe pile.

[0033] In use, the workers first fix the top of the main body 1 and the semi-circular plate 111 with bolts to complete the assembly of the mold. Then, the steel reinforcement frame is placed inside the mold. After that, the mold is hoisted onto the rotating equipment by the device. At this time, the rotating equipment can be started. When the rotating equipment is started, the mold will be rotated by the centrifugal shaft inside. When the mold is rotating, the workers will put concrete into the mold. The concrete inside the mold is thrown to the inner wall around the mold by the rapid rotation of the mold. Then the concrete comes into contact with the steel reinforcement frame and adheres to the steel reinforcement frame. At the same time, when the mold drives the concrete to rotate, the concrete will be reinforced by the compression of the centrifugal shaft of the rotating equipment, thereby processing the concrete into pipe piles.

[0034] When the mold is hoisted onto the centrifugal shaft of the rotating equipment, as the equipment is gradually placed onto the centrifugal shaft, the inner wall of the positioning plate 124 located inside the fixed ring 121 will contact the outer surface of the centrifugal shaft. Then, under the reaction force of the centrifugal shaft, the positioning plate 124 will move upwards. During this upward movement, the positioning plate 124 will drive the rotating ring 123 to move. As the rotating ring 123 moves, it will exert a thrust on the arc spring 122. After receiving this thrust, the arc spring 122 will contract and accumulate potential energy. Since the arc spring 122 is located on the outer surface of the telescopic rod 125, when the arc spring 122 contracts, the telescopic rod 125 will also contract. At this time, the return thrust of the arc spring 122 will exert an inclined force on the fixed ring 121. Then... When the centrifugal shaft starts to rotate, the outer surface of the centrifugal shaft will drive the positioning plate 124 to rotate. When the positioning plate 124 rotates, the arc spring 122 of the contracted part will push the telescopic rod 125 to reset, thereby applying an inclined thrust to the fixing ring 121, thus assisting the rotation of the fixing ring 121 and the mold. When the part of the arc spring 122 at the top of the positioning plate 124 contracts, the arc spring 122 at the bottom of the positioning plate 124 will be stretched by the pulling force of the moving positioning plate 124 and accumulate potential energy. This reduces the slippage that occurs when the centrifugal shaft drives the mold to rotate due to the weight of the mold when it is driven to rotate by the centrifugal shaft on the rotating equipment. This ensures the stability of the centrifugal shaft driving the mold to rotate and improves the quality of the mold when producing pipe piles.

[0035] When the positioning plate 124 rotates under the push of the centrifugal shaft, the retracted arc spring 122 located at the top of the positioning plate 124 moves under the action of the positioning plate 124 and the fixing ring 121. When the retracted arc spring 122 moves, it will reset itself. When the arc spring 122 resets, it will drive the internal telescopic rod 125 to stretch. At the same time, since the force of the arc spring 122 resetting is bidirectional, when the arc spring 122 resets, it will push the rotating ring 123 to rotate on the positioning plate 124 in the direction of the push bar 222. At this time, since the side wall of the push bar 222 is in contact with the side wall of the fixing plate 211, Meanwhile, the fixing plate 211 is fixed on the inner wall of the fixing ring 121. Therefore, when the arc spring 122 resets, the end near the rotating ring 123 is limited by the fixing plate 211 and the push bar 222 and cannot move. This allows the arc spring 122 to apply a force to the fixing ring 121 in the same direction as the rotation when it resets, thereby assisting the rotation of the mold. This reduces the situation where the resetting force of the arc spring 122 is opposite to the direction of rotation, which would affect the rotation of the positioning plate 124. This makes the operation of the positioning plate 124 more consistent and improves the efficiency of the device in pipe pile processing.

[0036] When the positioning plate 124 moves, it drives the rotating plate 311 on the outer surface to move as well. At the same time, the movement of the positioning plate 124 increases the gap between the bottom positioning plate 124 and the inner wall of the fixed frame 313. When the gap increases, the top of the rotating plate 311 will contact the inner wall of the fixed frame 313 during movement. Then, when the mold starts to rotate and the worker puts concrete into the mold, some of the scattered concrete will first contact the side wall of the positioning plate 124, and then some concrete will enter the gap between the rotating plate 311 and the fixed frame 313 through the gap between the positioning plate 124 and the fixed frame 313 and fall downward. This reduces the situation where the gap between the positioning plate 124 and the fixed frame 313 increases due to the movement of the positioning plate 124, which drives the auxiliary fixing ring 121 of the internal component and the rotation of the mold. This prevents some concrete from entering the component and affecting the operation of the component when concrete is put in, so that the internal components of the device can operate smoothly and further improve the quality of the mold in the production of pipe piles.

[0037] When the positioning plate 124 moves upward, it pushes the push bar 222 on the outer surface to move. As the push bar 222 moves, its bottom moves on the outer surface of the fixed shaft 221. Because the bottom of the push bar 222 is wavy, it is pushed by the fixed shaft 221 and swings on the outer surface of the positioning plate 124. When the push bar 222 swings, it applies a thrust to the spring 213 on the side wall, causing the spring 213 to contract on the side wall of the positioning plate 212 while accumulating reset potential energy. Simultaneously, the push bar 222 swings, causing the striking block 223 on the side wall to swing. When the striking block 223 swings, it contacts the rotating plate 311 on the outer surface of the positioning plate 124, thereby affecting the rotation... The moving plate 311 strikes, causing the rotating plate 311 to vibrate slightly during rotation. This shakes off a small amount of concrete adhering to the side wall of the rotating plate 311 and onto the ground. Simultaneously, as the rotating plate 311 rotates, the scraper 312 located on its side wall scrapes off the concrete adhering to the inner wall of the fixed frame 313. This keeps the rotating plate 311 and the interior of the fixed frame 313 clean, reducing the possibility of concrete falling through the gap between the rotating plate 311 and the fixed frame 313 and affecting the subsequent operation of the rotating plate 311 and the fixed frame 313 due to a small amount of concrete adhering to them. This allows the rotating plate 311 to operate better and further improves the efficiency of the device in pipe pile processing.

[0038] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A molding die for concrete pipe piles used in water conservancy projects, comprising a main body (1), characterized in that, Also includes: Auxiliary mechanism (2) is installed on the side wall of the main body (1) to assist the operation of the internal components of the main body (1) when the main body (1) rotates; The swinging mechanism (3) is installed on the side wall of the main body (1) and is used to throw out the concrete that falls inside the swinging mechanism (3) when the main body (1) rotates.

2. The concrete pipe pile forming mold for water conservancy projects according to claim 1, characterized in that: The main body (1) includes: Rotating component (11), which is installed at the bottom of the main body (1) and is used to rotate after being fixed by the other mechanisms; Shrinking assembly (12), which is installed on the side wall of the rotating assembly (11) of the main body (1) for shrinking when the rotating assembly (11) is installed.

3. The molding die for concrete pipe piles used in water conservancy projects according to claim 2, characterized in that: The auxiliary mechanism (2) includes: A push assembly (21) is installed on the inner wall of the retraction assembly (12) and is used to apply a thrust to the remaining components inside the auxiliary mechanism (2) when the rotating assembly (11) rotates; A swaying component (22) is installed on the side wall of the pushing component (21) and is used to sway when pushed by the pushing component (21).

4. The concrete pipe pile forming mold for water conservancy projects according to claim 3, characterized in that: The swinging mechanism (3) includes: Rotating assembly (31) is installed on the side wall of rotating assembly (11) and is used to rotate under the rotation of rotating assembly (11).

5. A concrete pipe pile forming mold for water conservancy projects according to claim 4, characterized in that: The rotating assembly (11) includes a semi-circular plate (111) fixedly connected to the bottom of the main body (1), and an annular plate (112) is fixedly connected to the front and back of the semi-circular plate (111).

6. A concrete pipe pile forming mold for water conservancy projects according to claim 5, characterized in that: The shrinking assembly (12) includes a fixing ring (121) fixedly connected to the side wall of the annular plate (112), and a plurality of arc-shaped springs (122) are fixedly connected to the inner wall of the fixing ring (121). A rotating ring (123) is fixedly connected to the inner wall of several of the arc springs (122), and a positioning plate (124) is rotatably connected to the outer surface of the rotating ring (123). The outer surface of the rotating ring (123) is rotatably connected to several telescopic rods (125). In this case, the arc spring (122) is in its normal state, and one end of each of the telescopic rods (125) away from the rotating ring (123) is rotatably connected to the inner wall of the fixed ring (121). The telescopic rod (125) is installed inside the arc spring (122), and the telescopic rod (125) is in a state of being stretched halfway.

7. A concrete pipe pile forming mold for water conservancy projects according to claim 6, characterized in that: The pushing assembly (21) includes a plurality of fixed plates (211) fixedly connected to the inner wall of the fixed ring (121). The side wall of the fixed plate (211) is fixedly connected to a positioning piece (212), and the side wall of the positioning piece (212) is fixedly connected to a spring (213).

8. A concrete pipe pile forming mold for water conservancy projects according to claim 3, characterized in that: The shaking assembly (22) includes a fixed shaft (221) fixedly connected to the side wall of the fixed plate (211), and a push bar (222) is provided on the outer surface of the fixed shaft (221). A striking block (223) is fixedly connected to the side of the push bar (222) near the fixed shaft (221). Among them, the sidewalls of several push bars (222) are rotatably connected to the outer surface of the rotating ring (123), and the side of the push bar (222) near the fixed shaft (221) is wavy; The outer surface of the fixed shaft (221) is in contact with the side wall of the push bar (222).

9. A concrete pipe pile forming mold for water conservancy projects according to claim 6, characterized in that: The rotating assembly (31) includes a rotating plate (311) fixedly connected to the outer surface of the positioning plate (124). A plurality of scrapers (312) are fixedly connected to the side wall of the rotating plate (311), and a fixing frame (313) is provided on the side wall of the scraper (312). The rotating plate (311) is located inside the fixed frame (313) and does not contact it. The side wall of the fixed frame (313) is fixedly connected to the side wall of the annular plate (112). The bottom of the fixed frame (313) is provided with a notch.

10. A molding die for concrete pipe piles used in water conservancy projects and its molding method, characterized in that: The method using the concrete pipe pile forming mold for water conservancy projects as described in claim 9 includes the following steps: S1: splicing and fixing: Before use, the staff first fix the bottom of the main body (1) to the top of the semicircular plate (111) with bolts, and at the same time place the steel frame in the mold, and then lift the mold and place it on the equipment that drives it to rotate. S2: Centrifugal molding: After the mold is placed, start the rotating equipment. When the equipment is running, it will drive the main body (1) and the semi-circular plate (111) to rotate quickly. When the mold is rotating, the construction personnel will put concrete into the mold so that the mold will shape the concrete by centrifugal force when rotating. S3: Demolding and pile removal: After the mold rotates to make the internal concrete into a tubular shape, wait for a period of time. When the concrete has initially set, lift the mold off and then separate the main body (1) from the semi-circular plate (111) to remove the formed pipe pile.

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