Tubular pile forming die

Abstract

The utility model discloses a tubular pile forming die, which relates to the technical field of concrete tubular piles and comprises an outer die, a tank body component is arranged on the outer die and comprises an inner die mounted on the inner side of the outer die, a heating pipe fixedly connected between the outer die and the inner die and a plurality of mounting grooves formed in the inner side of the inner die, and a demoulding component is arranged on the inner die. The demolding assembly comprises a plurality of air spraying heads installed on the inner side of a mounting groove and a sealing piece slidably arranged on the inner side of the mounting groove, and a spiral heating pipe of the tank assembly assists air flow blown out by the air spraying heads in the demolding assembly to expand, so that a gap exists between the concrete pipe pile and an inner mold, and the demolding process is smoother and more efficient; and meanwhile, the air gaps can play a certain buffering role, the overall integrity and surface quality of the pipe pile are effectively protected, the finished product rate of the concrete pipe pile can be remarkably improved, hardening is accelerated through high-temperature gas, and demolding is further accelerated.

Description

Technical Field

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

[0002] Pipe pile molds are key pieces of equipment specifically designed for the production of concrete pipe piles. They are typically made of high-strength steel and have precise dimensions and shapes. The mold design includes upper and lower molds and a core, and a precise mold-fitting process ensures that the pipe pile maintains a stable shape during concrete pouring. The core often contains a reinforcing cage to enhance the structural strength of the pipe pile. Pipe pile molds are highly customizable, capable of producing pipe piles of different diameters, wall thicknesses, and lengths to meet diverse engineering needs. Pipe pile molds play a crucial role in the construction of large-scale infrastructure projects such as bridges, buildings, and ports, serving as a key tool for ensuring pipe pile quality and project safety.

[0003] A search revealed a Chinese utility model patent with patent number CN219445518U, which discloses a concrete pipe pile mold. Compared with existing technologies, this utility model patent with Chinese patent number CN219445518U achieves the following: by pulling a pull plate, the pull plate can drive the sliding seat to slide, and the sliding seat can drive the clamping ring to move. The movement of the clamping ring can release the clamping of the inner mold, thus completing the disassembly of the inner mold. In this concrete pipe pile mold, the sliding seat can drive the clamping ring to move, and the inner mold can be placed inside the outer mold. When the pull plate is released, the pressure plate can effectively clamp and fix the inner mold under the elastic force of the second spring.

[0004] However, in actual use, the above-mentioned device uses the elastic force of springs to clamp the inner mold. But in actual use, due to the large weight of the concrete pipe pile, the spring will be displaced once it is subjected to external vibration during the manufacturing process, causing the inner mold to fall off and the concrete manufacturing to fail. At the same time, during the concrete demolding process, the push-pull spring is directly used to release the clamping to demold. In this process, the concrete and the clamping ring are in hard contact. During the contact process, it may cause pressure deformation to the slightly dried concrete pipe pile. Therefore, a pipe pile forming mold is proposed. Utility Model Content

[0005] The purpose of this utility model is to solve the shortcomings of the existing technology, such as poor demolding effect and low yield of pipe piles, and to propose a pipe pile forming mold.

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

[0007] A pipe pile forming mold includes an outer mold, on which a tank assembly is provided. The tank assembly is used to assist in the rapid and non-destructive demolding of concrete. The tank assembly includes: an inner mold installed inside the outer mold, a heating pipe fixedly connected between the outer mold and the inner mold, and multiple mounting grooves opened inside the inner mold.

[0008] The inner mold is provided with a demolding assembly, which is used to demold the concrete pipe pile. The demolding assembly includes multiple air jets installed inside the installation groove and a sealing plate slidably disposed inside the installation groove.

[0009] The above technical solution further includes:

[0010] The heating tube is spiral-shaped and installed inside the outer mold. The mounting groove is fan-shaped and evenly distributed on the inner sidewall of the inner mold.

[0011] The tank assembly also includes a transverse support symmetrically fixedly connected to the outer side of the outer mold, a vertical support fixedly connected to the side of the outer mold near the mounting groove, and a first sealing cap installed on the side of the outer mold away from the vertical support.

[0012] The inner mold is provided with a second sealing cover at the end away from the first sealing cover. The second sealing cover and the outer mold are connected by a connecting flange through a common flange. The second sealing cover is in close contact with the inner mold.

[0013] The demolding assembly also includes a lead screw rotatably connected to the outside of the second sealing cover, the lead screw being threadedly connected to a threaded block, and a rotating handle being fixedly connected to the side of the lead screw away from the second sealing cover.

[0014] Multiple adjusting arms are rotatably connected to the outer side of the threaded block. The ends of the adjusting arms away from the threaded block are rotatably connected to a fixed block. The fixed block is fixedly connected to a sealing sheet. The outer side wall of the sealing sheet is flush with the inner side wall of the inner mold.

[0015] The sealing sheet is symmetrically and fixedly connected to a side waterproof pad on its outer side, and a bottom waterproof pad is fixedly connected to the bottom of the sealing sheet. Both side waterproof pads and the bottom waterproof pad are located inside the mounting groove and are flush with the inner wall of the inner mold.

[0016] A connecting pipe is fixedly connected to the outside of the jet head, and a common connecting pipe is fixedly connected among multiple connecting pipes. The connecting pipe is fixedly connected to the second sealing cover.

[0017] This utility model has the following beneficial effects:

[0018] 1. In this utility model, the airflow blown out by the jet head in the demolding component creates a gap between the concrete pipe pile and the inner mold, making the demolding process smoother and more efficient. At the same time, the air gap can play a certain buffering role, effectively protecting the overall integrity and surface quality of the pipe pile, and can significantly improve the yield of concrete pipe piles.

[0019] 2. In this utility model, the spiral heating pipe set in the tank assembly can accelerate the hardening of concrete pipe piles. Accelerated hardening not only improves production efficiency, but also helps the concrete pipe piles reach higher strength standards. At the same time, the high temperature accelerates the expansion of the gas ejected from the jet head, reducing the frictional resistance during demolding and further protecting the surface of the pipe pile from damage. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of a pipe pile forming mold proposed in this utility model;

[0021] Figure 2 This is a schematic diagram of the tank assembly structure in this utility model;

[0022] Figure 3 This is a schematic diagram of the internal structure of the tank assembly in this utility model;

[0023] Figure 4 This is a schematic diagram of the first side structure of the outer mold in this utility model;

[0024] Figure 5 This is a schematic diagram of the second side structure of the outer mold in this utility model;

[0025] Figure 6 This is a schematic diagram of the demolding component structure in this utility model.

[0026] Figure 7 This is a schematic diagram of the second sealing cap structure in this utility model.

[0027] In the diagram: 2. Connecting flange; 10. Outer mold; 11. Inner mold; 12. First sealing cover; 13. Horizontal support; 14. Vertical support; 15. Heating tube; 16. Mounting groove; 17. Second sealing cover; 40. Connecting air pipe; 41. Rotating handle; 42. Screw; 43. Fixing block; 44. Sealing plate; 45. Bottom waterproof gasket; 46. Side waterproof gasket; 47. Air jet head; 48. Connecting pipe; 49. Adjusting arm; 410. Threaded block. 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. 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.

[0029] Example

[0030] like Figures 1-7 As shown, the present invention proposes a pipe pile forming mold, including an outer mold 10, a tank assembly on the outer mold 10, the tank assembly being used to assist in the rapid and non-destructive demolding of concrete filling, the tank assembly including: an inner mold 11 installed inside the outer mold 10, a heating pipe 15 fixedly connected between the outer mold 10 and the inner mold 11, and multiple mounting grooves 16 opened inside the inner mold 11;

[0031] The inner mold 11 is provided with a demolding assembly, which is used to demold the concrete pipe pile. The demolding assembly includes multiple air jets 47 installed inside the mounting groove 16 and a sealing plate 44 slidably disposed inside the mounting groove 16.

[0032] The heating tube 15 is spiral-shaped and installed inside the outer mold 10. The mounting groove 16 is fan-shaped and evenly distributed on the inner side wall of the inner mold 11. The spiral shape of the heating tube 15 can ensure that the heat is evenly distributed along the length of the mold, avoiding local overheating or uneven cooling. The evenly distributed mounting groove 16 can ensure that the gas is evenly distributed inside the concrete pipe pile.

[0033] The tank assembly also includes a transverse support 13 symmetrically fixedly connected to the outer side of the outer mold 10, a vertical support 14 fixedly connected to the side of the outer mold 10 near the mounting groove 16, and a first sealing cover 12 installed on the side of the outer mold 10 away from the vertical support 14.

[0034] The specific operation is as follows: first, open the first sealing cover 12, use the set vertical support 14 to put the outer mold 10 in a standing position, fill the concrete raw material from the first sealing cover 12, then compact it, and close the first sealing cover 12.

[0035] A second sealing cover 17 is provided at the end of the inner mold 11 away from the first sealing cover 12. The second sealing cover 17 and the outer mold 10 are connected by a connecting flange 2. The second sealing cover 17 is in close contact with the inner mold 11. The function of the first sealing cover 12 and the second sealing cover 17 is to maintain the airtightness of the inner mold 11.

[0036] The demolding assembly also includes a lead screw 42 rotatably connected to the outside of the second sealing cover 17. The lead screw 42 is threadedly connected to the threaded block 410. A rotating handle 41 is fixedly connected to the side of the lead screw 42 away from the second sealing cover 17.

[0037] Multiple adjusting arms 49 are rotatably connected to the outer side of the threaded block 410. The ends of the adjusting arms 49 away from the threaded block 410 are rotatably connected to the fixed block 43. The fixed block 43 is fixedly connected to the sealing plate 44. The outer side wall of the sealing plate 44 is flush with the inner side wall of the inner mold 11.

[0038] The jet demolding stage is as follows: by rotating the handle 41, the lead screw 42 rotates, causing the threaded block 410 to move and drive the adjusting arm 49 to rotate. When the adjusting arm 49 rotates beyond a certain angle, the adjusting arm 49 drives the moving fixed block 43 to move, thereby causing the sealing plate 44 to move away from the jet nozzle 47 and expose the jet nozzle. This design can ensure an absolute seal between the sealing plate 44 and the mounting groove 16 during the process of rotating the handle 41 to move the sealing plate 44 downward. During the continuous rotation of the handle 41, the sealing plate 44 will continuously press the mounting groove 16 under the rotation of the adjusting arm 49.

[0039] Side waterproof pads 46 are symmetrically fixed to the outer side of the sealing sheet 44, and bottom waterproof pads 45 are fixedly fixed to the bottom of the sealing sheet 44. Both side waterproof pads 46 and bottom waterproof pads 45 are located inside the mounting groove 16 and are flush with the inner wall of the inner mold 11.

[0040] The sealing sheet 44 is symmetrically fixed to the outer side with a side waterproof pad 46 and fixed to the bottom with a bottom waterproof pad 45. These waterproof pads ensure that the sealing sheet 44 fits tightly against the inner wall of the inner mold 11 in the mounting groove 16, preventing water or impurities in the pipe pile from entering the mounting groove 16.

[0041] A connecting pipe 48 is fixedly connected to the outside of the jet head 47, and a connecting air pipe 40 is fixedly connected among multiple connecting pipes 48. The connecting air pipe 40 is fixedly connected to the second sealing cover 17.

[0042] When demolding is required, gas enters the connecting pipe 48 through the connecting air pipe 40 and is finally ejected from the jet nozzle 47 to assist in demolding.

[0043] In this embodiment, concrete is poured into the cavity of the inner mold 11 and compacted. Then, the heating pipe 15 is activated to heat the concrete and accelerate its hardening process. The spiral design of the heating pipe 15 ensures uniform heat distribution and improves heating efficiency. After the concrete has hardened to a certain extent, the demolding operation is prepared. At this time, the sliding sealing plate 44 is moved away from the air jet head 47, exposing the air jet nozzle. Gas is sprayed into the gap between the concrete pipe pile and the inner mold 11 through the air jet head 47. The heated gas expands and generates thrust, which helps the concrete pipe pile separate from the inner mold 11. At the same time, the expansion of the gas can also form a more uniform air gap between the concrete pipe pile and the inner mold 11, reducing the frictional resistance during demolding and improving the yield.

[0044] 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 pipe pile forming mould comprising an outer mould (10), characterised in that, The outer mold (10) is provided with a tank assembly, which is used to assist in the rapid and non-destructive demolding of concrete. The tank assembly includes: an inner mold (11) installed inside the outer mold (10), a heating pipe (15) fixedly connected between the outer mold (10) and the inner mold (11), and multiple mounting slots (16) opened inside the inner mold (11). The inner mold (11) is provided with a demolding assembly, which is used to demold the concrete pipe pile. The demolding assembly includes multiple air jets (47) installed inside the mounting groove (16) and a sealing plate (44) slidably disposed inside the mounting groove (16).

2. A pipe pile forming mold according to claim 1, wherein The heating tube (15) is spiral-shaped and installed inside the outer mold (10). The mounting groove (16) is fan-shaped and evenly distributed on the inner sidewall of the inner mold (11).

3. A pipe pile forming mold according to claim 1, wherein The tank assembly also includes a transverse support (13) symmetrically fixedly connected to the outer side of the outer mold (10), a vertical support (14) fixedly connected to the side of the outer mold (10) near the mounting groove (16), and a first sealing cap (12) installed on the side of the outer mold (10) away from the vertical support (14).

4. A pipe pile forming mold according to claim 3, wherein The inner mold (11) is provided with a second sealing cover (17) at the end away from the first sealing cover (12). The second sealing cover (17) and the outer mold (10) are connected by a connecting flange (2). The second sealing cover (17) and the inner mold (11) are in close contact.

5. A pipe pile forming mold according to claim 4, wherein The demolding assembly also includes a lead screw (42) rotatably connected to the outside of the second sealing cover (17), the lead screw (42) being threadedly connected to the threaded block (410), and a rotating handle (41) being fixedly connected to the side of the lead screw (42) away from the second sealing cover (17).

6. A pipe pile forming mold according to claim 5, wherein Multiple adjusting arms (49) are rotatably connected to the outer side of the threaded block (410). The end of the adjusting arm (49) away from the threaded block (410) is rotatably connected to the fixing block (43). The fixing block (43) is fixedly connected to the sealing plate (44). The outer side wall of the sealing plate (44) is flush with the inner side wall of the inner mold (11).

7. A pipe pile forming mold according to claim 5, wherein The sealing sheet (44) is symmetrically fixedly connected to the outer side of the sealing sheet (44), and the bottom waterproof pad (45) is fixedly connected to the bottom of the sealing sheet (44). The two side waterproof pads (46) and the bottom waterproof pad (45) are located inside the mounting groove (16) and are flush with the inner wall of the inner mold (11).

8. A pipe pile forming mold according to claim 5, wherein A connecting pipe (48) is fixedly connected to the outside of the jet head (47), and a connecting air pipe (40) is fixedly connected among multiple connecting pipes (48). The connecting air pipe (40) is fixedly connected to the second sealing cover (17).

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