Large-area arc-shaped plate slip-form pouring auxiliary forming tool

Abstract

The application provides a large-area arc-shaped plate slip film pouring auxiliary forming tool, which comprises a chassis and a plurality of pouring positioning plates, each pouring positioning plate is arranged obliquely, and symmetrical slide shoes are arranged at the lower part of the chassis; a functional plate is arranged in the downward direction of each pouring positioning plate, the functional plate comprises a lower half and an upper half; the lower half extends obliquely downward from the chassis to the lower end, and the upper half extends obliquely upward from the chassis to the upper end, an inlet channel for pouring material is formed between adjacent two pouring positioning plates, and a pouring material maintaining space is formed between adjacent two functional plates; the lower edge of the lower half of each functional plate is flush with the lower edge of the slide shoe; the chassis comprises left and right side beams, end beams are fixed to the two ends of the side beams respectively, and the length of the side beam is greater than the length of the end beam. The tool provided by the application can maintain the pouring material at the required position and prevent the pouring material from flowing, the risk of concrete collapse during the pouring process is controllable, the surface quality after pouring is high, and a good foundation is laid for subsequent waterproof construction.

Description

Technical Field

[0001] This invention belongs to the field of municipal rail transit construction, and in particular relates to an auxiliary molding tool for large-area arc-shaped slab slip casting. Background Technology

[0002] With the increasing demand for underground railway development, the use of curved roof slabs in subway station construction has become a new main structural technology. The curved roof slab design better adapts to the internal geometry of the station, ensuring that the internal space meets regulatory requirements and avoiding encroachment on station building clearances due to improper design and construction. Secondly, the curved roof slab design optimizes the structural stress distribution. Subway stations are subjected to various loads during operation, including vehicle loads and earth pressure. The curved design better disperses these loads, reducing stress concentration and thus improving structural stability and safety. Furthermore, the curved roof slab design can reduce construction difficulty and cost. However, during the construction of subway curved roof slabs, the concrete tends to flow downwards, making it difficult to vibrate and compact. The slump of the concrete is difficult to control during pouring, and slight errors can lead to cold joints. Covering the curved slab with a formwork can result in numerous air bubbles at the top, making it difficult to control the surface quality after pouring, and even making it impossible to achieve a proper finish. This can affect the quality of subsequent waterproofing. Therefore, it is necessary to design a tooling to solve these problems. Summary of the Invention

[0003] In view of this, the present invention aims to overcome the defects in the prior art and proposes an auxiliary molding tool for large-area arc plate sliding film casting.

[0004] To achieve the above objectives, the technical solution created by this invention is implemented as follows:

[0005] A large-area arc-shaped plate sliding film casting auxiliary molding tooling includes a base frame. Several casting positioning plates are spaced apart on the upper side of the base frame, each arranged at an angle. Slippers are symmetrically arranged at the lower part of the base frame. Each casting positioning plate has a functional plate in its downward direction. The functional plate includes a lower half and an upper half. The lower half is inclined in the same direction as the casting positioning plate, while the upper half is inclined in a different direction. The lower half extends obliquely downwards from the base frame, and the upper half extends obliquely upwards from the base frame. An inlet channel for casting material is formed between adjacent casting positioning plates, and a casting material holding space is formed between adjacent functional plates. The lower edge of the lower half of each functional plate is flush with the lower edge of the slipper. The base frame includes left and right side beams, each with an end beam fixed at both ends. The length of the side beams is greater than the length of the end beams.

[0006] Furthermore, the slipper is made of stainless steel tubing.

[0007] Furthermore, the height of the sliding shoe in the vertical direction is less than the height of the base frame in the vertical direction.

[0008] Furthermore, the two side beams are arranged in parallel, and the two end beams are arranged in parallel.

[0009] Furthermore, the casting positioning plates are arranged in parallel, and the functional plates are arranged in parallel.

[0010] Furthermore, each of the aforementioned casting positioning plates is perpendicular to the side beam, and each of the aforementioned functional plates is perpendicular to the side beam.

[0011] Furthermore, the base frame is a one-piece molded structure, or the crossbeams and longitudinal beams are fixed by welding.

[0012] Compared with existing technologies, the present invention has the following advantages:

[0013] This invention features a simple structure, good overall integrity, and convenient, safe, and efficient installation and use. During the pouring of the curved roof slab, pouring only needs to be carried out on the upper side of the fixture. Concrete is smoothly poured from the inlet channel between the pouring positioning plate and the upper part into the material holding space. Furthermore, this fixture can hold the poured material in the required position, preventing it from flowing on the curved surface. The risk of concrete collapse during the pouring process is controllable, and the surface quality after pouring is high, laying a good foundation for subsequent waterproofing construction and further ensuring improved waterproofing quality. Attached Figure Description

[0014] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments and descriptions of the invention are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0015] Figure 1 A schematic diagram of the structure created by this invention;

[0016] Figure 2 An elevation view created for this invention;

[0017] Figure 3 for Figure 2 A sectional view;

[0018] Figure 4 This is a schematic diagram of the structure of the functional board in this invention;

[0019] Figure 5 This is a schematic diagram of the invention after removing the function board;

[0020] Figure 6 This is a schematic diagram of the elevation of the invention after the functional panels have been removed. Detailed Implementation

[0021] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other.

[0022] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this invention. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0023] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art will understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0024] The invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0025] A tooling for auxiliary molding of large-area arc-shaped plates using slip casting, such as Figures 1 to 6 As shown, the system includes a base frame 1, with several pouring positioning plates 2 spaced apart on the upper side of the base frame. Each pouring positioning plate is arranged at an angle, and sliding shoes 3 are symmetrically arranged at the lower part of the base frame. For example, the sliding shoes are made of stainless steel tubing. Typically, the vertical height of the sliding shoes (when using stainless steel tubing, this height is the outer diameter of the stainless steel tubing) is less than the vertical height of the base frame. Each pouring positioning plate has a functional plate 4 in its downward direction. It should be noted that the "downward direction" refers to the direction in which concrete moves obliquely along the surface of the pouring positioning plate when pouring concrete towards it.

[0026] The functional plate includes a lower half 5 and an upper half 6. The lower half is inclined in the same direction as the casting positioning plate, while the upper half is inclined in a different direction. The lower half extends diagonally downwards from the bottom frame, and the upper half extends diagonally upwards from the bottom frame. The lower edge of the lower half of each functional plate is flush with the lower edge of the slipper. The bottom frame includes left and right side beams 7, and end beams 8 are fixed at both ends of these side beams. The length of the side beams is greater than the length of the end beams. The casting positioning plate is welded and fixed to the side beams on both sides at both ends.

[0027] In an optional embodiment, the inclination angle of the casting positioning plate is 120-150°, and the angle between the upper part and the casting positioning plate is 45-120°. This structural design creates a casting inlet channel 9 between adjacent casting positioning plates, which facilitates the smooth pouring of casting material into the casting material holding space 10. Typically, the two side beams are arranged in parallel, and the two end beams are arranged in parallel. The casting positioning plates are arranged in parallel, and the functional plates are arranged in parallel.

[0028] In an optional embodiment, the inclination angle of the lower half is greater than 120°, preferably 120-170°. This structural design not only creates a space between adjacent functional panels for holding the pouring material, but also allows the lower half to "smooth" the pouring material after pouring by moving the fixture. This ensures smooth completion of the pouring operation and improves the surface quality of the curved top plate. It should be noted that the moving direction of this fixture is usually opposite to the downward direction. "Opposite to the downward direction" refers to the opposite direction in which the concrete moves obliquely along the surface of the pouring positioning plate when pouring towards it.

[0029] In an optional embodiment, except for the functional plate at the foremost end in the "downward direction" and the casting positioning plate at the far end in the "opposite side of the downward direction", the remaining functional plates are arranged on the lower side of the casting positioning plate, and the upper edge of the upper half of the functional plates is welded and fixed to the casting positioning plate. This structure makes the overall structure of the tooling better, the stability higher, and the durability guaranteed.

[0030] In an optional embodiment, a mounting frame is provided between the two end beams or between the two side beams, and a winch is mounted on the mounting frame with a traction rope. One end of the traction rope can be fixed to a structural member or building next to the cast-in-place curved roof slab as needed. The winch is used to raise and lower the traction rope, enabling the tooling to move in position. This method offers flexible operation and strong adaptability.

[0031] This invention features a simple structure, good overall integrity, and convenient, safe, and efficient installation and use. During the pouring of the curved roof slab, pouring only needs to be carried out on the upper side of the fixture. Concrete is smoothly poured from the inlet channel between the pouring positioning plate and the upper part into the material holding space. Furthermore, this fixture can hold the poured material in the required position, preventing it from flowing on the curved surface. The risk of concrete collapse during the pouring process is controllable, and the surface quality after pouring is high, laying a good foundation for subsequent waterproofing construction and further ensuring improved waterproofing quality.

[0032] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A tooling for auxiliary molding of large-area arc-shaped plates using slip casting, characterized in that: The system includes a base frame with several casting positioning plates spaced apart on its upper side. Each casting positioning plate is arranged at an angle, and symmetrical sliding shoes are provided at the bottom of the base frame. Each casting positioning plate has a functional plate in its downward direction. The functional plate consists of a lower half and an upper half. The lower half is inclined in the same direction as the casting positioning plate, while the upper half is inclined in a different direction. The lower half extends diagonally downward from the base frame, and the upper half extends diagonally upward from the base frame. An inlet channel for the entry of casting material is formed between two adjacent casting positioning plates, and a casting material holding space is formed between two adjacent functional plates. The lower edge of the lower half of each functional plate is flush with the lower edge of the sliding shoe. The base frame includes left and right side beams, each with an end beam fixed at both ends. The length of the side beams is greater than the length of the end beams.

2. The auxiliary forming tooling for sliding film casting of a large-area arc-shaped plate according to claim 1, characterized in that: The slippers are made of stainless steel tubing.

3. The auxiliary forming tooling for sliding film casting of a large-area arc-shaped plate according to claim 1, characterized in that: The vertical height of the sliding shoe is less than the vertical height of the base frame.

4. The auxiliary forming tooling for sliding film casting of a large-area arc-shaped plate according to claim 1, characterized in that: The two side beams are arranged in parallel, and the two end beams are arranged in parallel.

5. The auxiliary molding tooling for sliding film casting of a large-area arc-shaped plate according to any one of claims 1 to 4, characterized in that: The casting positioning plates are arranged in parallel, and the functional plates are arranged in parallel.

6. The auxiliary molding tooling for sliding film casting of a large-area arc-shaped plate according to any one of claims 1 to 4, characterized in that: Each of the aforementioned casting positioning plates is perpendicular to the side beam, and each of the aforementioned functional plates is perpendicular to the side beam.

7. The auxiliary molding tooling for sliding film casting of a large-area arc-shaped plate according to any one of claims 1 to 4, characterized in that: The base frame is a one-piece molded structure, or the crossbeams and longitudinal beams are fixed by welding.

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