Box culvert mold of shield tunnel

Abstract

The utility model discloses a box culvert mould of a shield tunnel, which comprises three outer mould shells, the number of the outer mould shells is three, the three outer mould shells are connected end to end and are fixed through fixing bolts, the end parts of the outer mould shells are provided with supporting moulds, the inner parts of the outer mould shells are provided with inner mould supporting devices, and the inner mould supporting devices are connected with the outer mould shells. The outer mold shell and the inner mold supporting device are fixed through a supporting mold, and a gap between the outer mold shell and the inner mold supporting device is used for pouring a box culvert body. According to the box culvert mold of the shield tunnel, the multiple outer mold shells and the supporting mold are combined to form an integral outer mold, the fixing bolts and the inner mold supporting device are used for assembling, rapid assembling and disassembling are achieved through the design of the modularized outer mold shells and the modularized inner mold supporting device, and the production efficiency is remarkably improved; the position and the size of the inner formwork are accurately controlled through the electric telescopic rod, accurate forming of the box culvert is ensured, and the engineering quality is improved.

Description

Technical Field

[0001] The utility model relates to the field of culvert box manufacturing, and more specifically, to a culvert box mold for shield tunnels. Background Art

[0002] In the construction of shield tunnels, culvert boxes are key components for ensuring the structural stability and functional integrity of tunnels. With the continuous advancement of urban transportation infrastructure construction, higher requirements are put forward for the construction quality and efficiency of culvert boxes in shield tunnels. Traditional methods for manufacturing culvert boxes often rely on manual operations, with relatively low precision and production efficiency, making it difficult to meet the needs of modern large-scale shield tunnel projects. Therefore, the development of an efficient and precise culvert box mold has become an urgent need in the industry.

[0003] The culvert box mold for shield tunnels proposed by the present technology realizes the rapid assembly and disassembly of the mold through modular design, greatly improving the production efficiency of culvert boxes. At the same time, through precise electric telescopic control, the accuracy and consistency of the culvert box dimensions are ensured, thereby improving the overall quality of shield tunnels. Summary of the Utility Model

[0004] 1. Technical Problems to be Solved

[0005] Aiming at the problems in the prior art that traditional methods for manufacturing culvert boxes often rely on manual operations, with relatively low precision and production efficiency, making it difficult to meet the needs of modern large-scale shield tunnel projects, the purpose of the present utility model is to provide a culvert box mold for shield tunnels, which can combine multiple outer mold shells with a support mold to form an overall outer mold, assemble with a fixed bolt and an inner mold support device. The modular design of the outer mold shell and the inner mold support device realizes rapid assembly and disassembly, significantly improving the production efficiency. The position and size of the inner mold shell are precisely controlled by an electric telescopic rod to ensure the precise forming of the culvert box, improving the engineering quality. The mold is made of corrosion-resistant and high-strength materials, enhancing the durability of the mold and reducing the maintenance cost.

[0006] 2. Technical Solutions

[0007] To solve the above problems, the present utility model adopts the following technical solutions.

[0008] A culvert box mold for shield tunnels includes outer mold shells. The number of the outer mold shells is three. The three outer mold shells are connected end to end and fixed by fixed bolts. A support mold is arranged at the end of the outer mold shell. An inner mold support device is arranged inside the outer mold shell. The outer mold shell and the inner mold support device are fixed by the support mold. The gap between the outer mold shell and the inner mold support device is used for pouring the culvert box body.

[0009] Preferably, the inner mold support device includes a fixed frame, a first electric telescopic rod, an extrusion block, a second electric telescopic rod and an inner mold shell. The outer wall of the fixed frame is fixedly connected to the first electric telescopic rod, and the moving end of the first electric telescopic rod is fixedly connected to the extrusion block. The outer wall of the fixed frame is fixedly connected to the second electric telescopic rod at the gap of the first electric telescopic rod, and the moving end of the second electric telescopic rod is fixedly connected to the inner mold shell. The extrusion block and the inner mold shell cooperate to form an inner mold support frame.

[0010] Preferably, a lifting lug is fixedly connected to the top of the fixed frame.

[0011] Preferably, through holes are provided on the surfaces of both the inner mold shell and the outer mold shell, and a reinforcement frame is installed at the through holes of the inner mold shell and the outer mold shell.

[0012] Preferably, both the outer mold shell and the inner mold support device are made of corrosion-resistant and high-strength materials to ensure the durability and safety of the mold.

[0013] Preferably, a sealing strip is provided at the connection between the extrusion block and the inner mold shell.

[0014] 3. Beneficial Effects

[0015] Compared with the prior art, the advantages of the present utility model are as follows:

[0016] Through the modular design of the outer mold shell and the inner mold support device, rapid assembly and disassembly are realized, significantly improving the production efficiency.

[0017] The position and size of the inner mold shell are precisely controlled by using the electric telescopic rod, ensuring the precise forming of the culvert and improving the engineering quality.

[0018] The mold is made of corrosion-resistant and high-strength materials, enhancing the durability of the mold and reducing the maintenance cost. Description of the Drawings

[0019] Figure 1 is the overall installation structure schematic diagram of the present utility model;

[0020] Figure 2 is the unfolded structure schematic diagram of the inner mold support device of the present utility model;

[0021] Figure 3 is the storage structure schematic diagram of the inner mold support device of the present utility model.

[0022] Explanation of the reference numerals in the drawings:

[0023] 1. Outer mold shell; 2. Support mold; 3. Fixed bolt; 4. Inner mold support device; 41. Fixed frame; 42. Lifting lug; 43. First electric telescopic rod; 44. Extrusion block; 45. Second electric telescopic rod; 46. Inner mold shell; 5. Box culvert body; 6. Reinforcement frame. Detailed implementation method

[0024] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0025] Embodiment 1:

[0026] Please refer to Figures 1-3 , the present invention provides a technical solution: a box culvert mold for a shield tunnel, including an outer mold shell 1. The number of outer mold shells 1 is three. The three outer mold shells 1 are connected end to end and fixed by fixed bolts 3. A support mold 2 is arranged at the end of the outer mold shell 1. An inner mold support device 4 is arranged inside the outer mold shell 1. The outer mold shell 1 and the inner mold support device 4 are fixed by the support mold 2. The gap between the outer mold shell 1 and the inner mold support device 4 is used for pouring the box culvert body 5. Multiple outer mold shells 1 and the support mold 2 are combined to form an overall outer mold, and are assembled by using the fixed bolts 3 and the inner mold support device 4. The modular design of the outer mold shell 1 and the inner mold support device 4 realizes rapid assembly and disassembly, significantly improves production efficiency, and accurately controls the position and size of the inner mold shell 46 by using electric telescopic rods, ensuring the accurate forming of the box culvert and improving the project quality. The mold is made of corrosion-resistant and high-strength materials, enhancing the durability of the mold and reducing the maintenance cost.

[0027] Among them, the inner mold support device 4 includes a fixed frame 41, a first electric telescopic rod 43, an extrusion block 44, a second electric telescopic rod 45 and an inner mold shell 46. The outer wall of the fixed frame 41 is fixedly connected with the first electric telescopic rod 43. The moving end of the first electric telescopic rod 43 is fixedly connected with the extrusion block 44. The outer wall of the fixed frame 41 is fixedly connected with the second electric telescopic rod 45 at the gap of the first electric telescopic rod 43. The moving end of the second electric telescopic rod 45 is fixedly connected with the inner mold shell 46. The extrusion block 44 and the inner mold shell 46 cooperate to form an inner mold support frame. The inner mold support device 4 is provided, and the movement of the extrusion block 44 is controlled by using the first electric telescopic rod 43 respectively, and the position of the inner mold shell 46 is controlled by using the second electric telescopic rod 45. The position and size of the inner mold shell are accurately controlled by using electric telescopic rods, ensuring the accurate forming of the box culvert and improving the project quality.

[0028] Among them, a lifting lug 42 is fixedly connected to the top of the fixed frame 41, which is convenient for the staff to hoist the whole body.

[0029] Among them, through holes are provided on the surfaces of the inner mold shell 46 and the outer mold shell 1, and a reinforcing frame 6 is installed at the through hole positions of the inner mold shell 46 and the outer mold shell 1, which is convenient for the staff to install the reinforcing frame 6, improve the overall strength and stability, and ensure the product quality.

[0030] Among them, both the outer mold shell 1 and the inner mold support device 4 are made of corrosion-resistant and high-strength materials to ensure the durability and safety of the mold.

[0031] Among them, a sealing strip is provided at the connection between the extrusion block 44 and the inner mold shell 46, which improves the sealing performance and thus ensures the product quality.

[0032] The above; only the preferred specific embodiments of the present invention; but the protection scope of the present invention is not limited thereto; any person skilled in the art within the technical scope disclosed by the present invention; according to the technical solution and its improved concept of the present invention, equivalent substitution or change; should be covered within the protection scope of the present invention.

Claims

1. A box culvert mold for a shield tunnel, comprising an outer mold shell (1), characterized in that: The number of the outer formwork shells (1) is three. The three outer formwork shells (1) are connected end to end and fixed by fixing bolts (3). A support mold (2) is arranged at the end of the outer formwork shell (1). An inner mold support device (4) is arranged inside the outer formwork shell (1). The outer formwork shell (1) and the inner mold support device (4) are fixed by the support mold (2). The gap between the outer formwork shell (1) and the inner mold support device (4) is used for pouring the culvert body (5). The inner mold support device (4) includes a fixed frame (41), a first electric telescopic rod (43), a pressing block (44), a second electric telescopic rod (45) and an inner mold shell (46). A first electric telescopic rod (43) is fixedly connected to the outer wall of the fixed frame (41). A pressing block (44) is fixedly connected to the moving end of the first electric telescopic rod (43). A second electric telescopic rod (45) is fixedly connected to the outer wall of the fixed frame (41) at the gap of the first electric telescopic rod (43). An inner mold shell (46) is fixedly connected to the moving end of the second electric telescopic rod (45). The pressing block (44) and the inner mold shell (46) cooperate to form an inner mold support frame.

2. The box culvert mold for shield tunnel according to claim 1, characterized in that: A lifting lug (42) is fixedly connected to the top of the fixed frame (41).

3. The box culvert mold for shield tunnel according to claim 1, characterized in that: Through holes are arranged on the surfaces of both the inner mold shell (46) and the outer formwork shell (1). Reinforcement frames (6) are additionally installed at the through holes of the inner mold shell (46) and the outer formwork shell (1).

4. The box culvert mold for shield tunnel according to claim 1, characterized in that: Both the outer formwork shell (1) and the inner mold support device (4) are made of corrosion-resistant and high-strength materials to ensure the durability and safety of the mold.

5. The box culvert mold for shield tunnel according to claim 1, characterized in that: A sealing strip is arranged at the connection between the pressing block (44) and the inner mold shell (46).

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