A pump station inlet and outlet water channel steel template assembly and its use method

Abstract

A pump station inlet and outlet water channel steel formwork assembly includes a bottom formwork, a cover steel formwork, an outer formwork, and three positioning device boxes; the bottom formwork is a horizontally arranged flat steel mesh formwork; the cover steel formwork is a horizontally arranged, bottom-open cover body, with a circular first water flow outlet and a rectangular second water flow outlet provided on the front and rear sides, respectively, and the bottom-opening shape of the cover body is an isosceles triangle; the outer formwork is a bottom-open rectangular parallelepiped box body, the bottom-opening size of which matches the size of the bottom formwork; each positioning device box is a vertically arranged triangular prism, the bottom surface of the triangular prism is an isosceles triangle, and the isosceles triangle is similar to the isosceles triangle of the bottom-opening cover steel formwork, and each positioning device box is provided with an anchor foot at the bottom. By adding a positioning device box, the present invention completes positioning before the bottom formwork is cast and is welded to the bottom formwork through the anchor foot. When the cover steel formwork is hoisted, the three corners of the bottom-opening triangle are respectively inserted into the three positioning device boxes to complete accurate positioning.

Description

Technical Field

[0001] The invention relates to a steel template assembly for an inlet and outlet water channel of a pump station and a use method thereof. Background Art

[0002] Concrete steel formwork construction technology has many advantages. In steel formwork projects, composite steel formwork is widely used due to its lightness, flexibility, ease of assembly and disassembly, strong versatility, and high turnover rate. However, composite steel formwork also has significant shortcomings. The steel formwork is not accurately positioned, and is prone to misalignment during the hoisting process. Furthermore, due to its unstable positioning, it is prone to lateral displacement. This is particularly true during the construction of the pump station's inlet and outlet channels. After the baseplate is poured, the upper steel formwork cannot be accurately positioned on the baseplate, which can easily lead to positional deviations. Furthermore, in existing technologies, the steel formwork is placed on the baseplate solely by its own weight, making it prone to lateral displacement, resulting in poor appearance quality after the concrete is formed. As an ideal building material favored by engineering projects, steel formwork undoubtedly possesses the rigidity, strength, and stability. However, achieving the full integrity of the composite steel formwork after assembly is a pressing issue. Summary of the Invention

[0003] The first technical problem to be solved by the present invention is to provide a pump station inlet and outlet water channel steel template assembly, which has a scientific principle, a compact structure, and the assembled steel template is accurately positioned and has a stable structure.

[0004] The second technical problem to be solved by the present invention is to provide a method for using the above-mentioned steel formwork assembly for the inlet and outlet water channels of a pump station. The method has simple steps and is convenient to construct, and effectively solves the defects of inaccurate positioning and easy lateral displacement of existing steel formwork.

[0005] To solve the first technical problem mentioned above, the present invention provides a pump station inlet and outlet water channel steel template assembly, comprising a bottom template, a cover steel template, an outer template and three positioning device boxes;

[0006] The bottom mold is a horizontally arranged flat steel mesh template;

[0007] The cover steel mold is a horizontally arranged cover body with an open lower side. A circular first water flow outlet is provided on the front side of the cover body and passes through the cover steel mold in the front-to-back direction. A rectangular second water flow outlet is provided on the rear side of the cover body and passes through the cover steel mold in the front-to-back direction. The area ratio of the first water flow outlet to the second water flow outlet is 1:4-8. The second water flow outlet of the cover steel mold is connected to the lower opening. The lower opening of the cover body is in the shape of an isosceles triangle. The two base angles of the isosceles triangle are located at the position where they connect with the second water flow outlet, and the vertex angle of the isosceles triangle points to the front side where the first water flow outlet is located.

[0008] The outer mold is a rectangular box with an open bottom, and the size of the bottom opening matches the size of the bottom mold;

[0009] Each of the positioning device boxes is in the shape of a vertically arranged triangular prism with a height of 80 mm. The bottom of the triangular prism is an isosceles triangle, and the isosceles triangle is similar to the isosceles triangle open on the lower side of the cover steel mold. Each positioning device box is provided with a number of anchor feet extending vertically downward at the bottom, and the length of the anchor feet is 20 cm.

[0010] To solve the second technical problem mentioned above, the present invention provides a method for using a steel formwork assembly for an inlet and outlet channel of a pump station, comprising the following steps:

[0011] (1) First, position the three positioning device boxes on the bottom form and weld them to the bottom form through anchoring feet. Then, pour the first batch of concrete on the bottom form to form a horizontal bottom plate, so that the three positioning device boxes are exposed from the bottom plate and are respectively located at the three corners of the isosceles triangle open on the lower side of the cover steel form;

[0012] (2) placing the cover steel mold on the horizontal bottom plate according to the positions of the three positioning device boxes to complete the positioning, and then setting the outer mold outside the cover steel mold;

[0013] (3) Pour the second concrete between the outer formwork and the cover steel formwork so that the second poured concrete and the first poured base plate form an integrated structure, which is the water flow channel. After all the concrete is solidified, the outer formwork and the cover steel formwork can be removed and used in rotation.

[0014] Advantages of the present invention: A positioning device box is added to the present invention, and the positioning is completed before the bottom mold is cast and welded to the bottom mold through the anchoring feet. This step is a prerequisite for hoisting the cover steel mold. When the cover steel mold is hoisted, the three corners of the open triangle on its lower side are respectively inserted into the three positioning device boxes to complete the positioning. The hoisting and positioning process is completed at one time, avoiding repeated prying of the cover steel mold to adjust and check the installation position after the hoisting operation, thereby reducing quality risks. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the cover steel mold in the present invention.

[0016] Figure 2 It is a structural diagram of the positioning device box in the present invention.

[0017] Figure 3 It is a schematic diagram of the cooperation and positioning of the cover steel mold and the positioning device box in the present invention. DETAILED DESCRIPTION

[0018] See also Figure 1-Figure 3 , a pump station inlet and outlet water channel steel template assembly, including a bottom mold, a cover steel mold 1, an outer mold and three positioning device boxes 2;

[0019] The bottom mold is a horizontally arranged flat steel mesh mold plate (conventional structure, not shown in the drawings);

[0020] The cover steel mold 1 is a horizontally arranged cover body with an open lower side. A circular first water flow port 11 is provided on the front side of the cover body and penetrates the cover steel mold 1 in the front-to-back direction. A rectangular second water flow port 12 is provided on the rear side of the cover body and penetrates the cover steel mold 1 in the front-to-back direction. The area ratio of the first water flow port 11 to the second water flow port 12 is 1:4-8 (the first water flow port 11 and the second water flow port 12 correspond to the water inlet and outlet of the inlet and outlet water flow channel, respectively). The second water flow port 12 of the cover steel mold 1 is connected to the lower side opening 13. The lower side opening 13 of the cover body is in the shape of an isosceles triangle. The two base angles of the isosceles triangle are located at the position where they connect with the second water flow port 12, and the vertex angle of the isosceles triangle points to the front side where the first water flow port 11 is located.

[0021] The outer mold is a rectangular box with a lower opening 13, the size of which matches the size of the bottom mold (the outer mold is a conventional rectangular concrete mold, not shown in the drawings);

[0022] Each of the positioning device boxes 2 is in the shape of a vertically arranged triangular prism and is made of Q235A, δ5mm steel plate cut and welded. The height of the triangular prism is 80mm, and the bottom shape of the triangular prism is an isosceles triangle, which is similar to the isosceles triangle of the opening 13 on the lower side of the cover steel mold 1. The three corners of the bottom of each positioning device box 2 are respectively provided with an anchor foot 21 extending vertically downward. The length of the anchor foot 21 is 20cm and the material is Φ12 threaded steel bar.

[0023] A method for using a steel formwork assembly for an inlet and outlet channel of a pump station comprises the following steps:

[0024] (1) First, position the three positioning device boxes 2 on the bottom form and weld them to the bottom form through the anchoring feet 21. Then, pour the first batch of concrete on the bottom form to form a horizontal bottom plate, so that the three positioning device boxes 2 are exposed from the bottom plate and are respectively located at the three corners of the isosceles triangle of the opening 13 on the lower side of the cover steel form 1;

[0025] (2) placing the housing steel mold 1 on a horizontal bottom plate according to the positions of the three positioning device boxes 2 to complete the positioning, and then setting an outer mold on the outside of the housing steel mold 1;

[0026] (3) Pour the second concrete between the outer formwork and the cover steel formwork 1, so that the second poured concrete and the first poured bottom plate form an integrated structure, which is the water flow channel. After all the concrete is solidified, the outer formwork and the cover steel formwork 1 can be removed and used in rotation.

[0027] Advantages of the present invention: A positioning device box 2 is added to the present invention, and the positioning is completed before the bottom mold is cast and welded to the bottom mold through the anchoring feet 21. This step is a pre-process before the cover steel mold 1 is hoisted. When the cover steel mold 1 is hoisted, the three corners of the triangle of the lower opening 13 are respectively inserted into the three positioning device boxes 2 to complete the positioning. The hoisting and positioning process is completed at one time, avoiding the need to repeatedly pry the cover steel mold 1 to adjust and check the installation position after the hoisting operation, thereby reducing quality risks.

Claims

1. A steel formwork assembly for the inlet and outlet channels of a pump station, characterized by: It includes a bottom mold, a cover steel mold, an outer mold and three positioning device boxes; The bottom mold is a horizontally arranged flat steel mesh template; The cover steel mold is a horizontally arranged cover body with an open lower side. A circular first water flow outlet is provided on the front side of the cover body and passes through the cover steel mold in the front-to-back direction. A rectangular second water flow outlet is provided on the rear side of the cover body and passes through the cover steel mold in the front-to-back direction. The area ratio of the first water flow outlet to the second water flow outlet is 1:4-8. The second water flow outlet of the cover steel mold is connected to the lower opening. The lower opening of the cover body is in the shape of an isosceles triangle. The two base angles of the isosceles triangle are located at the position where they connect with the second water flow outlet, and the vertex angle of the isosceles triangle points to the front side where the first water flow outlet is located. The outer mold is a rectangular box with an open bottom, and the size of the bottom opening matches the size of the bottom mold; Each of the positioning device boxes is in the shape of a vertically arranged triangular prism with a height of 80 mm. The bottom of the triangular prism is an isosceles triangle, and the isosceles triangle is similar to the isosceles triangle open on the lower side of the cover steel mold. Each positioning device box is provided with a number of anchor feet extending vertically downward at the bottom, and the length of the anchor feet is 20 cm.

2. The method for using the steel formwork assembly for the inlet and outlet channels of a pump station according to claim 1, characterized in that: The following steps are involved: (1) First, position the three positioning device boxes on the bottom form and weld them to the bottom form through anchoring feet. Then, pour the first batch of concrete on the bottom form to form a horizontal bottom plate, so that the three positioning device boxes are exposed from the bottom plate and are respectively located at the three corners of the isosceles triangle open on the lower side of the cover steel form; (2) placing the cover steel mold on the horizontal bottom plate according to the positions of the three positioning device boxes to complete the positioning, and then setting the outer mold outside the cover steel mold; (3) Pour the second concrete between the outer formwork and the cover steel formwork so that the second poured concrete and the first poured base plate form an integrated structure, which is the water flow channel. After all the concrete is solidified, the outer formwork and the cover steel formwork can be removed and used in rotation.

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