Prefabricated fair-faced concrete laminated wallboard screw

Abstract

The utility model discloses a prefabricated fair-faced concrete laminated wallboard screw which comprises a positioning mounting seat and an opposite-pull screw assembly. And the positioning mounting seat comprises a magnetic seat and an embedded bolt. And the magnetic seat is adsorbed and fixed at an appointed position of the corresponding steel mould table through magnetic force. And the embedded bolt is fixed on the magnetic seat. The bottom of the opposite-pull screw assembly is in threaded fit with the embedded bolt, so that the opposite-pull screw assembly and the magnetic base are fixed. According to the utility model, the magnetic seat with magnetic force is used as a reference for fixing the opposite-pull screw rod on the steel mould table, so that the opposite-pull screw rod can be quickly fixed at a specified position of the steel mould table. Meanwhile, the magnetic attraction force between the magnetic base and the steel die table is strong, and it can be guaranteed that the opposite-pull screw rod is accurately positioned in the production and pouring process.

Description

Technical Field

[0001] This utility model belongs to the field of precast fair-faced concrete exterior wall construction technology, specifically relating to a precast fair-faced concrete composite wall panel screw. Background Technology

[0002] In recent years, exposed concrete architecture, with its unique appearance and the elimination of the need for secondary decoration, is gradually becoming a popular choice in building design. Currently, the use of precast components for exposed concrete is also a major area of ​​exploration. One method involves precast wall panels that are stacked together, with a portion of the wall's thickness precast, and tie rod assemblies and truss reinforcement embedded in the middle. The remaining portion is then poured with concrete after on-site hoisting and formwork erection.

[0003] Currently, there are some problems in the prefabrication process of composite wall panels. The most important issue is the precision and accuracy of the embedded tie rods. Fair-faced concrete requires neat and reasonable formwork joints and regular and orderly tie rod openings. If the pre-installed tie rods on the prefabricated composite slabs are significantly misaligned or shifted during production, the subsequent formwork work for the cast-in-place section will be affected, and the surface of the final finished component will not meet the design requirements.

[0004] In general, it is common practice to use double-sided tape to connect the embedded parts to the mold table. Double-sided tape is used to seal the plug of the tie rod assembly, and then the tie rod assembly is glued to the mold table as a whole.

[0005] This method is suitable when the fit between the junction box and embedded parts and the mold is not critical. However, the tie rod has a high center of gravity, making it prone to displacement or even collapse during subsequent concrete pouring if it is bumped or knocked over. Another option is to apply 502 glue to the outside of the tie rod plug assembly to bond them together. However, excess glue can accumulate on the outside of the plug assembly after hardening, affecting the overall appearance of the opening and the concrete surface. Alternatively, silicone sealant can be used to fill the inside of the plug assembly to bond the tie rod and the mold. However, this method is too expensive, with relatively high costs for silicone sealant and labor, and it cannot be recycled, making it unsuitable for large-scale applications. Utility Model Content

[0006] To overcome the shortcomings of existing technologies, this utility model provides a precast fair-faced concrete composite wall panel tie rod to solve technical problems such as low installation accuracy and unstable fixing of tie rods.

[0007] To achieve the above objectives, the specific technical solution of this utility model is as follows:

[0008] A precast fair-faced concrete composite wall panel tie rod includes a positioning mounting base and a tie rod assembly. The positioning mounting base includes a magnetic base and an embedded bolt.

[0009] The magnetic base is magnetically attached to a designated position on the corresponding steel mold table. The embedded bolt is fixed to the magnetic base. The bottom of the tie rod assembly is threadedly engaged with the embedded bolt to secure the tie rod assembly to the magnetic base.

[0010] Furthermore, the tie rod assembly includes a screw body and a plug assembly. Plug assemblies are provided at both ends of the screw body.

[0011] Furthermore, the plug assembly includes a plug body and a fixing sleeve. The plug body is sleeved on the end of the screw body. A limiting plate that mates with the plug body is fixed to the end of the screw body for supporting and limiting the plug body. The fixing sleeve is screwed to the end of the screw body and can cooperate with the limiting plate to form a limiting clamp on the sleeved plug body.

[0012] Furthermore, the outer end face of the plug body is flush with the end of the fixed sleeve.

[0013] Furthermore, the diameter of the magnetic base is larger than the diameter of the corresponding plug body.

[0014] Furthermore, a water-stop plate is fixed in the middle of the screw body.

[0015] Compared with the prior art, the present invention has the following advantages:

[0016] This invention uses a magnetic base with magnetic force as the reference for fixing the tie rod to the steel mold table, enabling the tie rod to be quickly fixed in the designated position on the steel mold table. At the same time, the strong magnetic attraction between the magnetic base and the steel mold table ensures accurate positioning of the tie rod during the production and casting process.

[0017] This invention aligns the outer end face of the plug body fixed to the end of the tie rod with the end of the fixed sleeve, so that when the fixed sleeve is fixed with the embedded bolt, the end face of the plug body located at the bottom of the tie rod body can be tightly attached to the surface of the magnetic base, thus preventing grout leakage and affecting the overall quality.

[0018] This invention uses a magnetic base with a diameter larger than that of the corresponding plug body. This allows the magnetic base to form a hole larger than the diameter of the plug body when it detaches from the composite wall panel after the wall panel is poured, making it easier for workers to repair the hole later. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram showing the relative positions of the magnetic base and the pull screw assembly in this utility model;

[0021] Figure 3 This is a schematic diagram of the plug assembly in this utility model. Figure 2 (Enlarged view of part A in the middle section).

[0022] Reference numerals in the attached drawings: 1. Positioning mounting base; 2. Pull-off screw assembly; 3. Magnetic base; 4. Embedded bolt; 5. Screw body; 6. Plug assembly; 6-1. Plug body; 6-2. Fixed sleeve; 7. Waterstop plate; 8. Steel mold table; 9. Limiting plate. Detailed Implementation

[0023] In the description of this utility model, it should be understood that the terms "one end", "the other end", "outer side", "upper side", "inner side", "horizontal", "coaxial", "center", "end", "length", "outer end", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model 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. Therefore, they should not be construed as limitations on this utility model.

[0024] The present invention will be further described below with reference to the accompanying drawings.

[0025] like Figure 1 and 2 As shown, a precast fair-faced concrete composite wall panel tie rod includes a positioning mounting base 1 and a tie rod assembly 2. The tie rod assembly 2 is fixed to a designated position on the steel mold table for producing fair-faced concrete panels via the positioning mounting base 1. The steel mold table and the template mounted on the tie rod assembly 2 cooperate to form a mold cavity for the solidification and molding of fair-faced concrete. Fair-faced concrete is poured into the mold cavity and finally solidifies to form the desired precast fair-faced concrete composite wall panel.

[0026] The specific structure is shown in Figure 2. The positioning mounting base 1 includes a magnetic base 3 and an embedded bolt 4. The magnetic base 3 is magnetically attached to a designated position on the steel mold table 8. The embedded bolt 4 is threaded onto the magnetic base 3. The bottom of the tie rod assembly 2 is threadedly engaged with the embedded bolt 4, thus fixing the tie rod assembly 2 to the magnetic base 3. The magnetic base 3 pre-determines the installation position of the tie rod assembly 2, ensuring accurate positioning while enabling rapid installation and improving work efficiency.

[0027] like Figure 2 and 3As shown, the tie rod assembly 2 includes a tie rod body 5 and a plug assembly 6. Both ends of the tie rod body 5 are equipped with plug assemblies 6, which, in conjunction with the magnetic base 3 and the template, form corresponding clearance holes in the molded composite wall panel, facilitating subsequent installation. The plug assembly 6 includes a plug body 6-1 and a fixing sleeve 6-2. The plug body 6-1 has an installation through hole. A limiting plate 9, which mates with the plug body 6-1, is fixed to the end of the tie rod body 5. The plug body 6-1 is fitted onto the end of the tie rod body 5 through the installation through hole, and its bottom surface is supported and limited by the limiting plate. The inner wall of the fixing sleeve 6-2 has an internal thread that mates with the outer end of the tie rod body 5. The fixing sleeve 6-2 is fixed to the end of the tie rod body 5 by the internal thread, and, in conjunction with the limiting plate 9, forms a limiting clamp on the plug body 6-1 fitted onto the end of the tie rod body 5.

[0028] In this embodiment, the outer end faces of the two plug bodies 6-1 are flush with the ends of the corresponding fixed sleeves 6-2, so that when the fixed sleeves 6-2 are fixed with the embedded bolts 4, the end faces of the plug bodies 6-1 located at the bottom of the screw body 5 can be tightly attached to the surface of the magnetic base 3, thus avoiding grout leakage and affecting the overall quality.

[0029] Furthermore, a water-stop plate 7 is fixed in the middle of the screw body 5 to prevent water seepage between the two sides of the wall panel after molding.

[0030] Furthermore, the diameter of the magnetic base 3 is larger than the diameter of the corresponding plug body 6-1, so that when the composite wall panel is poured, the magnetic base 3 will form a hole larger than the diameter of the plug body 6-1 when it detaches from the composite wall panel, which will facilitate the workers to repair the hole later.

[0031] The specific installation process of this utility model is as follows:

[0032] The magnetic base 3 is magnetically attached to the designated position on the steel mold table 8, and the embedded bolt 4 is screwed into the threaded hole on the magnetic base 3. The plug body 6-1 and the fixing sleeve 6-2 are sequentially fitted onto the end of the screw body 5, and the position of the plug body 6-1 is defined by tightening the fixing sleeve 6-2. The screw body 5 is fixed to the embedded bolt 4 through the fixing sleeve 6-2 at the bottom. The template is fixed to the top of the screw body 5 with bolts. The mold cavity for the solidification and molding of fair-faced concrete is formed by the cooperation of the steel mold table and the template installed on the tie rod assembly 2. Fair-faced concrete is poured into the mold cavity and finally solidifies to form the required precast fair-faced concrete composite wall panel.

[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A bolt for precast fair-faced concrete composite wall panels, characterized in that: It includes a positioning mounting base (1) and a tie rod assembly (2); the positioning mounting base (1) includes a magnetic base (3) and an embedded bolt (4); the magnetic base (3) is fixed to a designated position on the corresponding steel mold table by magnetic attraction; the embedded bolt (4) is fixed on the magnetic base (3); the bottom of the tie rod assembly (2) is threaded with the embedded bolt (4) to realize the fixation between the tie rod assembly (2) and the magnetic base (3).

2. The precast fair-faced concrete composite wall panel tie rod according to claim 1, characterized in that: The pull screw assembly (2) includes a screw body (5) and a plug assembly (6); both ends of the screw body (5) are provided with plug assemblies (6).

3. The precast fair-faced concrete composite wall panel tie rod according to claim 2, characterized in that: The plug assembly (6) includes a plug body (6-1) and a fixed sleeve (6-2); the plug body (6-1) is sleeved on the end of the screw body (5); the end of the screw body (5) is fixed with a limiting plate (9) that cooperates with the plug body (6-1) for supporting and limiting the plug body (6-1); the fixed sleeve (6-2) is screwed on the end of the screw body (5) and can cooperate with the limiting plate (9) to form a limiting clamp on the sleeved plug body (6-1).

4. The precast fair-faced concrete composite wall panel tie rod according to claim 3, characterized in that: The outer end face of the plug body (6-1) is flush with the end of the fixed sleeve (6-2).

5. A precast fair-faced concrete composite wall panel tie rod according to claim 2, characterized in that: The diameter of the magnetic base (3) is larger than the end face diameter of the corresponding plug assembly (6).

6. The precast fair-faced concrete composite wall panel tie rod according to claim 2, characterized in that: A water-stop plate (7) is fixed in the middle of the screw body (5).

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