A pre-bolted anchor plate

Abstract

A kind of embedded bolt type anchor plate, including embedded bolt assembly, angle steel plate assembly and positioning plate, embedded bolt assembly includes bolt, nut, sleeve protective cover, enlarged cover body and protective cover, bolt head is provided with hexagonal head, sleeve protective cover end is provided with enlarged cover body, sleeve protective cover one end is opened, bolt is inserted from opening, the other end of sleeve protective cover is detachably connected protective cover, nut is placed in the inside of enlarged cover body, positioning plate or angle steel plate assembly is fastened in the side mould of concrete structure column by the bolt of penetrating sleeve protective cover.This utility model utilizes positioning plate to position embedded bolt assembly in the side mould opening of concrete member, improves the embedding precision of embedded bolt assembly, reduces construction difficulty, the utilization of angle steel plate, increases the stress area of concrete, improves the stability of anchor plate, can effectively avoid the situation that concrete is broken due to local excessive stress at beam-column corner part and small area structure column.

Description

Technical Field

[0001] This utility model relates to the field of anchor plate installation technology, and in particular to a pre-embedded bolt type anchor plate. Background Technology

[0002] Anchor plates are fixing components used in buildings, primarily in concrete structures such as walls, columns, slabs, and beams. They are mainly divided into pre-embedded anchor plates and post-anchored anchor plates, and are widely used in cantilevered canopies, protective sheds, and curtain wall systems. The traditional construction sequence for pre-embedded anchor plates involves installing the anchor plate to the designed position after the reinforcement of the concrete component is installed, and then re-measured and fixed. After fixing the anchor plate, concrete is poured to integrate the anchor plate, reinforcement, and concrete component into a single unit. During installation, pre-embedded anchor plates are prone to defects such as inaccurate pre-embedding positions and complex pre-embedding fixing processes. Compared to pre-embedded anchor plates, post-anchored anchor plates offer more accurate positioning, but due to potential deficiencies in compressive, tensile, and shear resistance during construction, post-anchoring fixing methods can result in insufficient safety and reliability. Drilling and cleaning holes for post-anchoring are also more cumbersome, and the anchors are prone to loosening.

[0003] For small cross-section components such as structural columns and beam-column corners, due to the small contact surface, anchor plates are prone to problems such as insufficient reliability of connection with concrete components and excessive local stress causing concrete breakage. In addition, traditional anchor plates cannot be recycled after the concrete components are poured. Summary of the Invention

[0004] This utility model aims to address the shortcomings of existing technologies by providing a pre-embedded bolt anchor plate.

[0005] To achieve the above objectives, this utility model adopts the following technical solution:

[0006] An embedded bolt anchor plate includes an embedded bolt assembly, an angle steel plate assembly, and a positioning plate. The embedded bolt assembly includes a bolt, a nut, a sleeve protective cover, an enlarged cover, and a protective cap. The bolt end has a hexagonal head. An enlarged cover is provided at the end of the sleeve protective cover. One end of the sleeve protective cover is open, and the bolt is inserted from the opening. The other end of the sleeve protective cover is a detachably connected protective cap. The nut is placed inside the enlarged cover. The positioning plate or angle steel plate assembly is fastened to the side formwork of the concrete structural column by bolts that penetrate the sleeve protective cover.

[0007] The central axis of the nut coincides with the central axis of the sleeve protective cover.

[0008] The corner steel plate assembly includes a corner steel plate, a cap, and a gasket. The corner steel plate has two holes on each side of its surface, and the hole positions match the bolt positions. The corner steel plate has a cap base on the outside of the hole positions, and the gasket is fitted onto the cap base. The cap base has external threads, and the cap is connected to the cap base by the threads.

[0009] The enlarged cover is a hexagonal shell structure. The inner cavity size of the enlarged cover matches the hexagonal nut. The enlarged cover is connected to the inside of the sleeve protective cover.

[0010] One side of the protective cover protrudes outward, and the central axis of the protruding part coincides with the central axis of the sleeve protective cover. The diameter of the protruding part is adapted to the bolt and is larger than the bolt diameter.

[0011] The positioning plate is a corner steel plate, with two holes on each side for determining the position of the pre-embedded bolts. The thickness of the positioning plate is less than the thickness of the corner steel plate.

[0012] The height of the cap base is the same as the thickness of the hexagonal head of the bolt end, and the inner diameter of the cap is larger than the diameter of the hexagonal head of the bolt end.

[0013] The beneficial effects of this utility model are as follows: This utility model uses a positioning plate to open holes in the side formwork of the concrete component to position the pre-embedded bolt assembly, which improves the embedding accuracy of the pre-embedded bolt assembly and reduces the construction difficulty. Both sides of the corner steel plate are fixed to the concrete component by bolts, which increases the stress area of ​​the concrete and improves the stability of the anchor plate. It can effectively avoid the situation where the concrete breaks due to excessive local stress at the corner of the beam and column and small-area structural columns. Attached Figure Description

[0014] Figure 1 This is a schematic diagram showing the connection between the pre-embedded bolt anchor plate and the structural column of this utility model;

[0015] Figure 2 This is a structural schematic diagram of the pre-embedded bolt assembly of this utility model;

[0016] Figure 3 This is a front view of the bolt of this utility model;

[0017] Figure 4 This is a front view of the sleeve protection cover of this utility model;

[0018] Figure 5 This is a front view of the nut of this utility model;

[0019] Figure 6 This is a front view of the protective cover of this utility model;

[0020] Figure 7 This is an exploded view of the corner steel plate assembly of this utility model;

[0021] Figure 8 This is a schematic diagram of the positioning plate structure of this utility model;

[0022] In the diagram: 1-Concrete structural column; 2-Embedded bolt assembly; 21-Enlarged cover; 22-Nut; 23-Sleeve protective cover; 24-Protective cover; 25-Bolt; 3-Corner steel plate assembly; 31-Corner steel plate; 32-Cap base; 33-Cap; 34-Gasket; 4-Canopy keel; 5-Positioning plate;

[0023] The following will describe in detail the embodiments of this utility model with reference to the accompanying drawings. Detailed Implementation

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

[0025] An embedded bolt anchor plate includes an embedded bolt assembly 2, a corner steel plate assembly 3, and a positioning plate 5. The embedded bolt assembly 2 includes a bolt 25, a nut 22, a sleeve protective cover 23, an enlarged cover 21, and a protective cover 24. The bolt 25 has a hexagonal head at one end. The sleeve protective cover 23 is provided with an enlarged cover 21 at one end. One end of the sleeve protective cover 23 is open, and the bolt 25 is inserted from the opening. The other end of the sleeve protective cover 23 is a detachably connected protective cover 24. The nut 22 is placed inside the enlarged cover 21. The positioning plate 5 or the corner steel plate assembly 3 is fastened to the side formwork of the concrete structural column 1 by the bolt 25 passing through the sleeve protective cover 23. The concrete structural column 1 is then connected to the canopy keel 4 by the corner steel plate assembly 3.

[0026] The central axis of the nut 22 coincides with the central axis of the sleeve protective cover 23.

[0027] The corner steel plate assembly 3 includes a corner steel plate 31, a cap 33, and a gasket 34. The corner steel plate 31 has two holes on each side, and the hole positions match the bolt positions. The corner steel plate 31 has a cap base 32 on the outside of the hole positions. The gasket 34 is fitted onto the cap base 32. The cap base 32 has external threads. The cap 33 is connected to the cap base 32 by threads. The corner steel plate 31 is relatively thick and is used as a load-bearing steel plate after the anchor plate is installed. Both sides of the corner of the corner steel plate 31 are fixed to the concrete structural column 1 by bolts 25, which increases the concrete bearing area, improves the stability of the anchor plate, and can effectively prevent small cross-section concrete components from breaking due to excessive local stress.

[0028] The enlarged cover 21 is a hexagonal shell structure. The inner cavity size of the enlarged cover 21 matches the hexagonal nut 22. The enlarged cover 21 is connected to the inside of the sleeve protective cover 23.

[0029] One side of the protective cover 24 protrudes outward, and the central axis of the protrusion coincides with the central axis of the sleeve protective cover 23. The diameter of the protrusion is adapted to and larger than the diameter of the bolt 25, which can prevent the protective cover 24 from being squeezed out after the bolt 25 is tightened. This ensures that the bolt 25 is applicable in both states: fixed to the side formwork of the concrete structural column 1 before pouring and fixed to the corner steel plate 31 after pouring. The protective cover 24 covers the enlarged cover 21 to prevent concrete from entering the nut 22 during concrete pouring.

[0030] The positioning plate 5 is a corner steel plate. Two holes are opened on each side of the positioning plate 5 to determine the position of the pre-embedded bolt 25. The thickness of the positioning plate 5 is less than the thickness of the corner steel plate 31.

[0031] The height of the cap base 32 is the same as the thickness of the hexagonal head of the bolt 25, and the inner diameter of the cap 33 is greater than the diameter of the hexagonal head of the bolt 25.

[0032] In the manufacture of this utility model, the positioning plate 5, bolt 25, nut 2, and angle steel plate 31 are all made of iron, while the sleeve protective cover 23, enlarged cover 21, and protective cover 24 are all made of plastic. The steps for use are as follows:

[0033] A. Complete the reinforcement binding of the structural columns and pass the acceptance inspection;

[0034] B. Determine the elevation position of the anchor plate in the concrete structural column 1 according to the design drawings. After measuring and marking the position of the anchor plate, place the positioning plate 5 at the corresponding mark on the side formwork of the structural column, and make holes on the inner surface of the side formwork according to the position of the holes on the positioning plate 5.

[0035] C. To embed the pre-embedded bolt assembly, first open the protective cover 24 at the end of the enlarged cover 21, place the nut 22 inside the enlarged cover 21 and fasten the protective cover 24, then insert the bolt 25 through the side formwork of the concrete structural column 1 and insert it into the sleeve protective cover and connect it with the nut 22 inside the enlarged cover 21. Fix the pre-embedded bolt assembly 2 as a whole on the side formwork by tightening the bolt 25.

[0036] D. After the formwork of concrete structural column 1 is installed, reinforced and accepted, concrete is poured. After the poured concrete reaches the required strength, bolts 25 are unscrewed and the side formwork of concrete structural column 1 is disassembled, so that the side formwork is separated from the sleeve protective cover 23 and nut 22.

[0037] E. Install the corner steel plate. Place the corner steel plate 31 at the elevation of the concrete structural column 1. Place the shim 34 at the opening of the corner steel plate 31. After the bolt 25 passes through the shim 34 and the corner steel plate 31, insert it into the enlarged cover 21 and connect it with the nut 22. Tighten the bolt 25 to lock and fix the corner steel plate 31 to the concrete structural column 1.

[0038] F. The outer side of the corner steel plate 31 has a screw-on cap base 32, which is fixed at the opening position of the corner steel plate 31. The height of the cap base 32 is the same as the thickness of the hexagonal head of the bolt 25, and the diameter of the cap 33 is slightly larger than the diameter of the nut of the bolt 25. After the corner steel plate 31 is fixed to the concrete structural column 1 with bolts 25, tightening the cap 33 on the outer side of the corner steel plate 31 will press the cap 33 against the hexagonal head of the bolt 25, thus preventing the bolt 25 from loosening.

[0039] G. When dismantling the corner steel plate assembly 3 later, unscrew the cap 33, use an electric wrench to remove the bolt 25 from the corner steel plate 31, then seal the inside of the sleeve protective cover 23, and recycle and reuse the bolt 25, corner steel plate 31, gasket 34, and cap 33.

[0040] In this embodiment, the bolt 25 has a hexagonal head. When embedding the pre-embedded bolt assembly 2 and when installing and fixing the corner steel plate assembly 3 to the concrete structural column 1, the same type of bolt 25 is used.

[0041] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to 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 of this utility model.

[0042] Furthermore, the terms "first" and "second" 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, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0043] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0044] The present invention has been described above with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any improvements made using the inventive concept and technical solution of the present invention, or direct application to other situations without modification, are all within the protection scope of the present invention.

Claims

1. A pre-embedded bolt anchor plate, characterized in that, The assembly includes a pre-embedded bolt assembly (2), a corner steel plate assembly (3), and a positioning plate (5). The pre-embedded bolt assembly (2) includes a bolt (25), a nut (22), a sleeve protective cover (23), an enlarged cover (21), and a protective cover (24). The bolt (25) has a hexagonal head at the end. The sleeve protective cover (23) is provided with an enlarged cover (21) at the end. One end of the sleeve protective cover (23) is open, and the bolt (25) is inserted from the opening. The other end of the sleeve protective cover (23) is a detachable protective cover (24). The nut (22) is placed inside the enlarged cover (21). The positioning plate (5) or the corner steel plate assembly (3) is fastened to the side formwork of the concrete structural column (1) by the bolt (25) that passes through the sleeve protective cover (23).

2. The pre-embedded bolt anchor plate according to claim 1, characterized in that, The central axis of the nut (22) coincides with the central axis of the sleeve protective cover (23).

3. The pre-embedded bolt anchor plate according to claim 2, characterized in that, The corner steel plate assembly (3) includes a corner steel plate (31), a cap (33) and a gasket (34). The corner steel plate (31) has two holes on each side of the plate surface, and the hole positions match the bolt positions. The corner steel plate (31) has a cap base (32) on the outside of the hole positions. The gasket (34) is fitted on the cap base (32). The cap base (32) is provided with external threads. The cap (33) is connected to the cap base (32) by threads.

4. The pre-embedded bolt anchor plate according to claim 3, characterized in that, The enlarged cover (21) is a hexagonal shell structure. The inner cavity size of the enlarged cover (21) matches the hexagonal nut (22). The enlarged cover (21) is connected to the inside of the sleeve protective cover (23).

5. A pre-embedded bolt anchor plate according to claim 4, characterized in that, One side of the protective cover (24) protrudes outward, and the central axis of the protruding part coincides with the central axis of the sleeve protective cover (23). The diameter of the protruding part is compatible with the bolt (25) and is larger than the diameter of the bolt (25).

6. The pre-embedded bolt anchor plate according to claim 3, characterized in that, The positioning plate (5) is a corner steel plate. Two holes are opened on both sides of the positioning plate (5) to determine the position of the pre-embedded bolt (25). The thickness of the positioning plate (5) is less than the thickness of the corner steel plate (31).

7. The pre-embedded bolt anchor plate according to claim 3, characterized in that, The height of the cap base (32) is the same as the thickness of the hexagonal head of the bolt (25), and the inner diameter of the cap (33) is greater than the diameter of the hexagonal head of the bolt (25).

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