Concrete pipe pile forming mould with degradable release agent

Abstract

This utility model discloses a concrete pipe pile molding mold with a biodegradable release agent, belonging to the field of mold technology. It includes a shell with an upper plate at the top of its outer surface. A rotating wheel is inserted inside the shell, and a knob is installed at the top of the outer surface of the rotating wheel. A connecting block is sleeved inside the outer surface of the rotating wheel. The mold employs a precise temperature control system using heating wires, allowing the curing temperature to be set according to the concrete characteristics. This avoids gas expansion caused by high temperatures, reducing porosity at the source and ensuring a uniform and dense internal structure of the concrete. A vacuum pump at the top of the housing, along with valves and air pipes, actively extracts air from the pipe during concrete pouring, eliminating internal air bubbles and improving concrete density and waterproof sealing performance. Furthermore, the mold's wear-resistant protective layer and heat-insulating buffer layer effectively extend its service life and maintain stable curing temperature, providing a reliable guarantee for the production of high-performance concrete pipe piles.

Description

Technical Field

[0001] This utility model relates to the field of mold technology, specifically to a concrete pipe pile molding mold with a biodegradable release agent. Background Technology

[0002] Pipe foundations are a type of deep foundation constructed using a single large tubular structure, and are widely used in bridge engineering. This foundation system involves vertically embedding steel or reinforced concrete pipe columns into the deep ground, allowing the pile ends to rest directly on a solid bearing layer or be embedded in rock strata for anchorage. Its core structure consists of three parts: the pipe column body extending deep into the ground, the reinforced concrete cap connecting the top of the pile, and the piers and superstructure supported by the cap. Existing pipe column forming processes typically employ high-temperature curing to accelerate concrete setting. However, this process is prone to causing internal material defects. During rapid drying, the evaporation of moisture inside the concrete creates closed air cavities. Simultaneously, the high-temperature environment exacerbates the gas expansion effect, resulting in a large number of irregularly distributed pore structures inside the finished product. These pore defects not only compromise the material's density and reduce the waterproof sealing performance of the pipe column, but also create stress concentration areas, significantly weakening the overall load-bearing capacity of the component and making it difficult to meet the technical requirements of modern engineering for high-performance infrastructure. Utility Model Content

[0003] To solve the above-mentioned technical problems, a concrete pipe pile molding mold with a biodegradable release agent is provided. This technical solution solves the problem of material damage caused by gas expansion effect mentioned in the background technology.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A concrete pipe pile molding mold with a biodegradable release agent includes a shell, an upper plate at the top of the outer surface of the shell, a rotating wheel inserted inside the shell, a knob installed at the top of the outer surface of the rotating wheel, a connecting block sleeved inside the outer surface of the rotating wheel, and a moving groove formed at the top and bottom of the front end of the outer surface of the connecting block, and a retaining groove formed at the front end of the outer surface of the connecting block, a connecting plate being engaged in the retaining groove of the connecting block, a rod being inserted into the moving groove of the connecting block, and the bottom end of the axial surface of the rod penetrating the outer surface of the connecting plate, with limiting plates inserted at the top and bottom of the circumferential surface of the rod at the moving groove of the connecting block.

[0005] Preferably, an installation box is fixedly installed on the front end of the outer surface of the connecting plate, an inlet is provided on the left side of the outer surface of the installation box, and an outlet is provided on the right side of the outer surface of the installation box.

[0006] Preferably, the four corners of the outer surface of the mounting box are provided with insert blocks, the insert blocks are inserted with insert shafts, and the front end of the peripheral surface of the insert shafts is mounted with mounting plates.

[0007] Preferably, a tube is provided inside the installation box between the inlet and the outlet, a pipe pile is provided between the inlet, the tube and the outlet, a heating wire is provided on the outer surface of the tube, and a connecting wire is installed at the bottom of the outer surface of the heating wire.

[0008] Preferably, a power supply box is installed at one end of the outer surface of the connecting wire, and the outer surface of the power supply box is located inside the mounting box, and a battery is electrically installed inside the power supply box.

[0009] Several sets of vacuum pumps are arranged along the radial direction of the tube at the top of the outer surface of the mounting box. Valves are arranged on the peripheral surface of the vacuum pump near the bottom end, and air pipes are installed through the peripheral surface of the vacuum pump through the outer surface of the mounting box.

[0010] Preferably, the outermost surface of the mounting box is provided with a wear-resistant protective layer, the inner bottom of the wear-resistant protective layer is provided with a heat insulation buffer layer, the outer bottom of the heat insulation buffer layer is provided with a biodegradable release agent carrier layer, and the inner bottom of the biodegradable release agent carrier layer is provided with a smooth molding layer.

[0011] Compared with the prior art, the beneficial effects of this utility model are: This solution proposes a concrete pipe pile molding mold with a biodegradable release agent. The mold utilizes a precise temperature control system with heating wires to set the curing temperature according to the concrete's characteristics, preventing gas expansion caused by high temperatures and reducing porosity at the source. This ensures a uniform and dense internal structure of the concrete. A vacuum pump at the top of the mold, along with valves and air pipes, actively extracts air from the pipe during concrete pouring, eliminating internal air bubbles and improving concrete density and waterproof sealing performance. Compared to traditional processes that rely solely on vibration for air release, this method is significantly more effective. The biodegradable release agent carrier layer releases the release agent after molding, not only avoiding the potential impact of traditional release agent residues on concrete performance but also, in conjunction with a smooth molding layer, ensuring a smooth and flat pipe pile surface, reducing stress concentration, and enhancing the overall load-bearing capacity of the component. Furthermore, the mold's wear-resistant protective layer and heat-insulating buffer layer effectively extend the mold's service life and maintain stable curing temperatures, providing a reliable guarantee for the production of high-performance concrete pipe piles and meeting the stringent requirements of modern engineering for infrastructure. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the limiting component in this utility model; Figure 3 This is a schematic diagram of the vacuum pump assembly in this utility model; Figure 4 This is a schematic diagram of the heating component in this utility model; Figure 5 This is a schematic diagram of the mounting box assembly in this utility model.

[0013] The numbers on the map are: 1. Outer shell; 2. Top plate; 3. Rotary wheel; 4. Knob; 6. Mounting box; 7. Inlet; 8. Pipe pile; 9. Connecting block; 10. Insert rod; 11. Limiting plate; 12. Connecting plate; 13. Vacuum pump; 14. Valve; 15. Mounting plate; 16. Insert shaft; 17. Insert block; 18. Power supply box; 19. Battery; 20. Connecting wire; 21. Heating wire; 22. Tube body; 23. Outlet; 24. Wear-resistant protective layer; 25. Heat insulation buffer layer; 26. Biodegradable mold release agent carrier layer; 27. Smooth molding layer. Detailed Implementation

[0014] The following description is intended to disclose the present invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art.

[0015] Reference Figure 1-5 As shown, a concrete pipe pile molding mold with a biodegradable release agent includes a shell 1. A top plate 2 is provided at the top of the outer surface of the shell 1. The shell 1 serves as a basic load-bearing structure, stably supporting the entire equipment. The top plate 2 provides protection and auxiliary positioning. A rotating wheel 3 inserted inside the shell 1, in conjunction with a top knob 4, constitutes the mold's rotation adjustment assembly. The user can drive the rotating wheel 3 to rotate by rotating the knob 4, facilitating operation and adjustment of the mold's interior. The connecting block 9, sleeved on the outer surface of the rotating wheel 3, is a key component for connection and positioning. Its front and rear moving slots and locking slots are used for the installation and fixing of the insert rod 10 and the connecting plate 12, respectively. The insert rod 10 penetrates the connecting plate 12 and its movement range within the moving slot is limited by a limiting piece 11, ensuring connection stability. The mounting box 6 fixed at the front end of the connecting plate 12 is the core area carrier for concrete molding. Its left-side inlet 7 is used for the raw concrete... The material is injected, and the discharge port 23 on the right side is the demolding outlet of the formed pipe pile 8. The two work together with the internal structure of the installation box 6 to form a complete concrete pouring and forming channel. A rotating wheel 3 is inserted into the inside of the outer shell 1. A knob 4 is installed at the top of the outer surface of the rotating wheel 3. A connecting block 9 is sleeved inside the outer surface of the rotating wheel 3. The top and bottom ends of the front of the outer surface of the connecting block 9 are provided with moving grooves. A slot is also provided at the front end of the outer surface of the connecting block 9. A connecting plate 12 is engaged in the slot of the connecting block 9. A rod 10 is inserted into the moving groove of the connecting block 9. The bottom end of the shaft surface of the rod 10 penetrates the outer surface of the connecting plate 12. The top and bottom ends of the circumferential surface of the rod 10 are inserted into the moving groove of the connecting block 9. A limiting piece 11 is inserted at the moving groove of the connecting block 9. The installation box 6 is fixedly installed at the front end of the outer surface of the connecting plate 12. An inlet 7 is opened on the left side of the outer surface of the installation box 6. An outlet 23 is opened on the right side of the outer surface of the installation box 6.

[0016] Furthermore, insert blocks 17 are provided at the four corners of the outer surface of the mounting box 6. Insert shafts 16 are inserted into the inside of the insert blocks 17. The insert blocks 17, insert shafts 16, and mounting plates 15 at the four corners of the mounting box 6 together form an internal support frame, providing a stable installation foundation for the pipe body 22 and other components. The pipe body 22 serves as the core of the concrete forming mold. The heating wires 21 wrapped around its outer surface can heat the pipe body 22 after the battery 19 supplies power through the power box 18 and connecting wires 20, thereby achieving heat curing of the concrete pipe pile 8 and accelerating the concrete curing process. At the same time, the temperature can be precisely controlled according to the needs. The pipe pile 8 located between the inlet 7, the pipe body 22, and the outlet 23 is the product to be formed. The concrete pouring, forming, and demolding process is completed in this area. In addition, the vacuum pump 13, which is radially distributed along the pipe body 22 at the top of the mounting box 6, together with the valve 14 and the air pipe, can extract the pipe body during the concrete pouring process. 22. Internal air is used to reduce bubble formation and improve concrete density. Valve 14 is used to control the start and stop of the air extraction process and adjust the air pressure to ensure the quality of concrete molding. An installation plate 15 is installed on the front end of the peripheral surface of the insert shaft 16. A pipe body 22 is set inside the installation box 6 between the inlet 7 and the outlet 23. A pipe pile 8 is set between the inlet 7, the pipe body 22 and the outlet 23. A heating wire 21 is set on the outer surface of the pipe body 22. A connecting wire 20 is installed at the bottom of the outer surface of the heating wire 21. A power box 18 is installed at one end of the outer surface of the connecting wire 20. The outer surface of the power box 18 is set inside the installation box 6. A battery 19 is electrically installed inside the power box 18. Several sets of vacuum pumps 13 are set along the radial direction of the pipe body 22 at the top of the outer surface of the installation box 6. A valve 14 is set on the peripheral surface of the vacuum pump 13 near the bottom. An air pipe is installed through the peripheral surface of the vacuum pump 13 on the outer surface of the installation box 6.

[0017] Furthermore, the outermost surface of the mounting box 6 is configured with a wear-resistant protective layer 24. The outer surface of the mounting box 6 adopts a four-layer composite structure design, consisting of a wear-resistant protective layer 24, a heat insulation buffer layer 25, a biodegradable mold release agent carrier layer 26, and a smooth molding layer 27, from the outside to the inside. The outermost wear-resistant protective layer 24 has high wear resistance and corrosion resistance, which can resist external friction and chemical erosion and extend the service life of the mold. The heat insulation buffer layer 25 effectively blocks heat transfer, maintains stable internal temperature, and buffers external impact to protect the internal structure. The biodegradable mold release agent carrier layer 26 serves as the core functional layer. The system stores and releases a biodegradable release agent, allowing the pipe pile 8 to separate smoothly from the mold after concrete molding, avoiding residual pollution from traditional release agents. The innermost smooth molding layer 27, with its smooth surface, ensures that the outer surface of the molded pipe pile 8 is flat and smooth, meeting the engineering quality requirements. The four-layer structure works together to take into account mold performance, concrete molding quality, and environmental protection needs. A heat insulation buffer layer 25 is installed at the bottom of the inner side of the wear-resistant protective layer 24. A biodegradable release agent carrier layer 26 is set at the bottom of the outer surface of the heat insulation buffer layer 25. A smooth molding layer 27 is installed at the bottom of the inner side of the biodegradable release agent carrier layer 26.

[0018] Working principle and implementation method: First, prepare the mold. The outer shell 1 serves as the basic support equipment, and the upper plate 2 provides protection and positioning. Rotate the knob 4 to drive the rotating wheel 3. Through the cooperation of the connecting block 9, the insert rod 10, the limiting plate 11, and the connecting plate 12, adjust the mounting box 6 to the appropriate position. Then, inject concrete raw materials into the pipe 22 inside the mounting box 6 through the inlet 7. The pipe 22 is stably supported by the frame composed of the insert block 17, the insert shaft 16, and the mounting plate 15. Turn on the battery 19 in the power box 18 to supply power to the heating wire 21 through the connecting wire 20, thereby heating and curing the pipe 22 to accelerate the concrete setting. The soil is solidified, and at the same time, valve 14 is opened to start vacuum pump 13. Air is extracted from the pipe body 22 through the air pipe to reduce air bubbles and improve the density of concrete. After the concrete is formed in the pipe body 22, the release agent is released by the biodegradable release agent carrier layer 26. Due to the smooth surface of the smooth forming layer 27, the formed pipe pile 8 can be smoothly released from the discharge port 23 under the action of the release agent. Throughout the process, the wear-resistant protective layer 24 resists external wear and corrosion, and the heat insulation buffer layer 25 maintains the internal temperature stability and buffers external forces to ensure the normal operation of the mold. Finally, the efficient, environmentally friendly and high-quality forming production of concrete pipe pile 8 is achieved.

[0019] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A concrete pipe pile forming mould with degradable release agent, comprising a shell (1), characterized in that: The outer surface of the outer shell (1) is provided with an upper plate (2) at the top. A rotating wheel (3) is inserted into the inner surface of the outer shell (1). A knob (4) is installed at the top of the outer surface of the rotating wheel (3). A connecting block (9) is sleeved inside the outer surface of the rotating wheel (3). A moving groove is opened at the top and bottom ends of the front surface of the connecting block (9). A slot is also opened at the front end of the outer surface of the connecting block (9). A connecting plate (12) is snapped into the slot of the connecting block (9). A plug rod (10) is inserted into the moving groove of the connecting block (9). The bottom end of the shaft surface of the plug rod (10) penetrates the outer surface of the connecting plate (12). A limiting piece (11) is inserted at the top and bottom ends of the peripheral surface of the plug rod (10) at the moving groove of the connecting block (9).

2. The degradable release agent concrete pipe pile forming mold according to claim 1, characterized in that: The front end of the outer surface of the connecting plate (12) is fixedly installed with an installation box (6). The left side of the outer surface of the installation box (6) is provided with an inlet (7), and the right side of the outer surface of the installation box (6) is provided with an outlet (23).

3. A degradable release agent concrete pipe pile forming mold according to claim 2, characterized in that: Insert blocks (17) are provided at the four corners inside the outer surface of the mounting box (6). Insert shafts (16) are inserted into the inside of the insert blocks (17). Mounting plates (15) are installed on the front end of the peripheral surface of the insert shafts (16).

4. The degradable release agent concrete pipe pile forming mold according to claim 2, characterized in that: The installation box (6) has a pipe body (22) located between the inlet (7) and the outlet (23). A pipe pile (8) is provided between the inlet (7), the pipe body (22) and the outlet (23). A heating wire (21) is provided on the outer surface of the pipe body (22). A connecting wire (20) is installed at the bottom of the outer surface of the heating wire (21).

5. A degradable release agent concrete pipe pile forming mold according to claim 4, characterized in that: A power box (18) is installed on one end of the outer surface of the connecting line (20), and the outer surface of the power box (18) is located inside the mounting box (6). A battery (19) is electrically installed inside the power box (18).

6. A degradable release agent for a concrete pipe pile forming mold according to claim 2, wherein: Several sets of vacuum pumps (13) are arranged along the radial direction of the tube body (22) at the top of the outer surface of the mounting box (6). Valves (14) are arranged on the peripheral surface of the vacuum pumps (13) near the bottom end, and air pipes are installed through the peripheral surface of the vacuum pumps (13) on the outer surface of the mounting box (6).

7. The degradable release agent concrete pipe pile forming mold according to claim 2, characterized in that: The outermost surface of the mounting box (6) is provided with a wear-resistant protective layer (24). A heat insulation buffer layer (25) is installed at the bottom of the inner side of the wear-resistant protective layer (24). A biodegradable mold release agent carrier layer (26) is provided at the bottom of the outer surface of the heat insulation buffer layer (25). A smooth molding layer (27) is installed at the bottom of the inner side of the biodegradable mold release agent carrier layer (26).

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