A prefabricated panel connection assembly and a prefabricated panel connection structure and applications thereof

Abstract

The present invention discloses a prefabricated panel connection assembly and a prefabricated panel connection structure and applications thereof, and relates to the field of prefabricated buildings. The technical solution thereof includes a connection piece and a bolt, and the connection piece is arranged in pairs on the upper and lower surfaces of the prefabricated panel; each connection piece includes an integrally formed connection plate and two protrusions; the upper and lower surfaces of the prefabricated panel are provided with a first groove matching the protrusion near the edge; the two protrusions of the connection piece are respectively embedded in the first grooves of the two prefabricated panels, the bolt passes through the protrusions of the two connection pieces, and the nut is screwed on the bolt to clamp and fix the two connection pieces, thereby further realizing the connection of the two prefabricated panels. The advantages of the present invention are that the tensile strength of the connection between the bolt and the prefabricated panel is enhanced, and at the same time, the connection structure formed by the connection assembly and the prefabricated panel is neat and beautiful, which is convenient for further construction of the prefabricated panel.

Description

Technical Field

[0001] The present invention relates to the field of prefabricated buildings, and in particular to a prefabricated panel connection assembly, a prefabricated panel connection structure formed based on the connection assembly, and applications thereof. Background Art

[0002] As prefabricated buildings become increasingly mature, more and more buildings adopt prefabricated structures. Various prefabricated parts are processed in the factory in advance and transported to the construction site for splicing and assembly, which greatly improves the construction speed of buildings.

[0003] The connection of existing prefabricated panels is divided into dry construction and wet construction according to the specific needs of the building structure. The two methods have their own advantages and can be selected according to different building requirements. Wet construction requires pouring concrete and has a longer construction period than dry construction, but its connection strength is high. Compared with wet construction, dry construction has the advantages of fast construction speed, convenient operation, no need to consider maintenance time, and continuous construction.

[0004] The existing dry construction mainly connects the connector and the two prefabricated panels by bolts. The utility model patent with the authorization announcement number CN206090874U discloses a straight-line connection node. Figure 1 The node includes two prefabricated panels 1, a straight steel plate connector 3, bolts 23 and embedded nuts 4. The connector is fixed to the upper and lower edges of the joint surface of the two prefabricated panels 1 by bolts 23. The bolts 23 pass through the straight steel plate connector 3 and are screwed into the embedded nuts 4. Based on the connection structure formed by this connector, the concrete around the bolts and embedded nuts is easily damaged due to the small contact area between the embedded nuts 4 and the bolts 23 and the concrete, resulting in a loose connection or even failure. Therefore, the tensile strength of the connection structure is relatively weak. Summary of the invention

[0005] In view of the shortcomings of the prior art, a first object of the present invention is to provide a connection assembly for prefabricated panels, which has the advantage of being able to better connect the prefabricated panels and having a better tensile effect.

[0006] The above-mentioned purpose of the present invention is achieved through the following technical scheme: it includes connecting parts and bolts, and the connecting parts are arranged in pairs on the upper and lower surfaces of the prefabricated panels; each connecting part includes an integrally formed connecting plate and two protrusions; the upper and lower surfaces of the prefabricated panels are provided with first grooves matching the protrusions near the edge; the two protrusions of the connecting parts are respectively embedded in the first grooves of the two prefabricated panels, and the bolts pass through the protrusions of the two connecting parts to clamp and fix the two connecting parts to achieve the connection of the two prefabricated panels.

[0007] Through the above technical solution, the protrusion is embedded in the first groove of the prefabricated board, the bolt passes through the protrusion coaxially located on the upper and lower surfaces of the prefabricated board, the two connecting parts are fixed, and the bolt passes through the protrusion embedded in the prefabricated board. Since the protrusion increases the contact area with the concrete of the prefabricated board, the tensile force can be better dispersed, reducing the damage to the concrete, thereby improving the tensile strength between the two prefabricated boards.

[0008] The present invention is further configured as follows: the protrusion is embedded in the first groove, and the connecting plate is flush with the surface of the prefabricated plate.

[0009] Through the above technical solution, the protrusion is embedded in the first groove, the connecting plate is flush with the surface of the prefabricated board, the surface of the prefabricated board is neat and beautiful, and the further construction of the prefabricated board is convenient.

[0010] The present invention is further configured such that: the convex block is conical or hemispherical.

[0011] Through the above technical solution, the conical or hemispherical setting facilitates the insertion of the protrusion into the first groove, and after being tightened by the bolt, the contact surface of the protrusion and the groove can be better fitted.

[0012] The present invention is further configured such that: the connecting plate is in a gourd shape or a shape formed by two trapezoidal upper bases being spliced ​​relative to each other.

[0013] Through the above technical solution, the connecting plate and the protrusion can better disperse the tensile force, so that a larger area of ​​concrete can participate in the force, reducing the shear force perpendicular to the joint, thereby preventing the damage of the concrete around the connecting component and enhancing the connection effect.

[0014] The present invention is further configured as follows: the protrusion is provided with a second groove matching the nut, the nut is embedded in the second groove, and the surface of the nut is flush with the upper surface of the connecting plate.

[0015] Through the above technical solution, the head of the bolt is embedded in the second groove, which keeps the nut part and the upper surface of the connecting plate flush, making the prefabricated board surface neat and beautiful, and facilitating further construction of the prefabricated board.

[0016] The present invention is further configured as follows: the protrusion is provided with a third groove matching the nut, the nut is screwed onto the bolt and embedded in the third groove, and the surface of the nut is flush with the connecting plate.

[0017] Through the above technical solution, the prefabricated board surface is made neat and beautiful, which facilitates the further construction of the prefabricated board.

[0018] The present invention is further configured to include: an embedded part arranged in the prefabricated plate, and the end surface of the embedded part is concave to form the first groove.

[0019] Through the above technical solution, the bolts pass through the embedded parts located on the upper and lower surfaces of the precast panel to avoid directly passing through the concrete on the precast panel. Since the compressive strength of the embedded parts is better than that of the concrete, the connection through the embedded parts makes the tensile strength of the connection better.

[0020] The second object of the present invention is to provide a prefabricated panel connection structure, comprising at least two prefabricated panels spliced ​​together and a connection assembly, wherein the upper and lower surfaces of the prefabricated panels are provided with first grooves matching the protrusions; the joints of the prefabricated panels are connected by a connection assembly.

[0021] Through the above technical solution, the protrusion of the connecting component is embedded in the first groove of the prefabricated plate that matches it, and the corresponding protrusion is fixedly connected by bolts, thereby realizing the connection between two or more prefabricated plates and forming a prefabricated plate connection structure.

[0022] The third object of the present invention is to provide a prefabricated panel connection structure, comprising at least two prefabricated panels spliced ​​to each other and a connection assembly, wherein embedded parts are arranged on the upper and lower surfaces of the prefabricated panels; and the joints of the prefabricated panels are connected by connecting parts and bolts.

[0023] Through the above technical solution, the protrusion of the connecting assembly is embedded in the first groove of the embedded part in the prefabricated panel, and the corresponding protrusion is fixedly connected by bolts, thereby realizing the connection between two or more prefabricated panels and forming a prefabricated panel connection structure.

[0024] The present invention is further configured such that the embedded parts in the same prefabricated plate are connected by continuous steel bars or angle irons.

[0025] Through the above technical solution, the embedded parts in the same prefabricated panel are interconnected into a whole, which is beneficial to the transmission of tension.

[0026] The present invention is further configured such that: angle steel or steel plate edging is provided on the four end faces of the prefabricated plate.

[0027] Through the above technical solution, angle steel or steel plate edging is used to reinforce the prefabricated panels, prevent the prefabricated panels from being damaged during use, and improve the recycling rate of the prefabricated panels.

[0028] The present invention is further configured such that: the gap between the two prefabricated panels is filled with a waterproof sealing layer.

[0029] Through the above technical solution, the gaps between the prefabricated panels are sealed to prevent water seepage at the connection points of the prefabricated panel connection structure.

[0030] In summary, the present invention has the following beneficial effects:

[0031] 1. The first groove of the prefabricated panel and the connection piece protrusion are arranged to increase the contact surface between the protrusion and the concrete, thereby preventing the concrete around the connection assembly from being damaged and strengthening the connection strength between the two prefabricated panels. At the same time, the protrusion and the prefabricated panel form a bite structure, thereby avoiding shear damage of the bolts and thus strengthening the reliability of the connection.

[0032] 2. The protrusion is set to be conical or hemispherical, which not only facilitates the insertion of the protrusion into the first groove, but also enables the contact surface of the protrusion and the groove to be more closely attached after being tightened by the bolt, thereby improving the connection effect;

[0033] 3. The connection plate is in the shape of a gourd or two trapezoidal upper bottoms spliced ​​together. The connection plate and the convex block can better disperse the tensile force, so that a larger area of ​​concrete can participate in the force, reducing the shear force perpendicular to the joint, thereby preventing the destruction of the concrete around the connection component and strengthening the connection effect;

[0034] 4. The connecting plate is flush with the surface of the prefabricated board, making the surface of the prefabricated board neat and beautiful, which is convenient for further construction of the prefabricated board;

[0035] 5. The setting of embedded parts and the connection between embedded parts with full-length steel bars or angle irons can improve the integrity of prefabricated parts and facilitate load transfer;

[0036] 6. Angle steel or steel plate edging is set on the four end faces of the prefabricated board to prevent the prefabricated board from being damaged during use and facilitate the recycling of the prefabricated board. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 It is a schematic diagram of the background technology of the present invention;

[0038] Figure 2 It is the overall structural schematic diagram of the prefabricated panel connection structure;

[0039] Figure 3 This is an exploded schematic diagram of the precast panel connection structure;

[0040] Figure 4 It is a schematic diagram of the lower surface of the prefabricated plate connection structure of the present invention;

[0041] Figure 5 A schematic diagram of the prefabricated panel connection structure highlighting the embedded parts;

[0042] Figure 6 A schematic diagram of the prefabricated panel connection structure that highlights the edge angle iron;

[0043] Figure 7 This is a schematic diagram of the connection structure when multiple prefabricated panels are spliced ​​together.

[0044] Figure numerals: 1. prefabricated plate; 11. first groove; 12. second groove; 13. third groove; 14. upper surface; 15. lower surface; 2. connecting assembly; 21. connecting plate; 22. protrusion; 23. bolt; 24. nut; 3. I-shaped steel plate connecting piece; 4. embedded nut; 5. embedded part; 6. steel bar; 7. angle steel; 8. waterproof sealing layer. DETAILED DESCRIPTION

[0045] The present invention will be further described in detail below with reference to the accompanying drawings. The same components are denoted by the same reference numerals. It should be noted that the terms "front", "rear", "left", "right", "upper", "lower", "bottom" and "top" used in the following description refer to directions in the accompanying drawings, and the terms "inside" and "outside" refer to directions toward or away from the geometric center of a specific component, respectively.

[0046] Example: Figure 2 and Figure 3 As shown, a prefabricated panel 1 connection structure includes at least two prefabricated panels 1 and a connection assembly 2 for connecting the prefabricated panels 1. The connection assembly 2 includes a connector and a bolt 23. The connector includes a connecting plate 21 and two protrusions 22 integrally formed with the lower surface 15 of the connecting plate 21. The upper and lower surfaces of the prefabricated panel 1 are provided with a first groove 11 matching the protrusion 22 near the edge. The connecting plate 21 is a plate-like structure. In this embodiment, the connecting plate 21 is a gourd-shaped one. The shape of the connecting plate 21 is not unique, and it can also be a shape formed by splicing two trapezoidal upper bottoms (not shown in the figure). The shape of the protrusion 22 is also not unique, and it can be a cone or a hemispherical structure, etc. Such a configuration facilitates the protrusion 22 to be embedded in the first groove 11 of the prefabricated panel 1.

[0047] Combination Figure 3 and Figure 4 When the connecting assembly 2 is connected to the prefabricated plate 1, for the convenience of description, the prefabricated plate 1 is divided into an upper and a lower surface. In this embodiment, the plate surface where the bolt 23 first passes through the prefabricated plate 1 is called the upper surface 14. Figure 3 ; One side of the screw nut 24 is the lower surface 15 of the prefabricated panel 1, see Figure 4 When connecting: the first grooves 11 matching the protrusions 22 are symmetrically arranged near the edge of the joint of the upper and lower surfaces of the prefabricated board 1, and the two protrusions 22 of the connecting piece are respectively embedded in the first grooves 11 of the upper surfaces 14 of the two prefabricated boards 1. At the same time, a connecting piece is also placed on the lower surface 15 of the connecting piece, and the two connected protrusions 22 are respectively embedded in the first grooves 11 of the lower surfaces 15 of the two prefabricated boards 1. Bolts 23 are passed through the connecting plate 21 and the protrusions 22 arranged opposite to each other on the upper and lower surfaces of the prefabricated board 1, and nuts 24 are screwed on the bolts 23 to clamp the two connecting pieces, thereby connecting the two prefabricated boards 1 together.

[0048] In order to make the connection structure of the two prefabricated panels 1 connected by the connection assembly 2 neat and beautiful, and facilitate the further construction of the prefabricated panels 1, Figure 4 After the protrusion 22 is embedded in the first groove 11 , the connecting plate 21 is flush with the upper and lower surfaces of the prefabricated plate 1 .

[0049] Furthermore, a second groove 12 matching with the nut is formed on the protrusion 22 on the upper surface 14 of the prefabricated plate 1 , and the bolt 23 passes through the protrusion 22 , and the nut is embedded in the second groove 12 , and the surface of the nut is flush with the connecting plate 21 .

[0050] For further information, see Figure 2 A third groove 13 matching with a nut 24 is formed on the protrusion 22 on the lower surface 15 of the prefabricated plate 1 . The nut 24 is screwed onto the bolt 23 , and the surface of the nut 24 away from the bolt 23 is flush with the connecting plate 21 .

[0051] For further details, see Figure 2 The connecting plate 21 is a gourd-shaped connecting plate 21. The arcuate edge of the gourd shape decomposes the force F of the prefabricated panel 1 on the connecting piece into horizontal and vertical directions, increases the stress surface in the direction perpendicular to the relative movement of the two prefabricated panels 1, and further strengthens the connecting effect of the connecting piece on the prefabricated panels 1. The connecting plate 21 formed by splicing two trapezoidal upper bottoms can also achieve this effect.

[0052] In addition, when the tension on the two prefabricated panels 1 in the background art acts on the bolts 23, a horizontal shear force is formed. If the screw is damaged by shear, the connection fails. However, this solution uses an integrally formed connecting plate 21 and a protrusion 22 to form an engagement with the prefabricated panel 1. The bolts 23 only play the role of pressing the upper and lower connecting components 2 and are not subject to shear force in the horizontal direction. Therefore, the force structure is more reasonable and the connection is more reliable.

[0053] like Figure 5 As shown, since the tensile strength of concrete is relatively poor, in order to strengthen the tensile strength of the connection structure of the precast panel 1 and avoid the bolts 23 passing through the protrusions 22 on the upper and lower surfaces of the precast panel 1 and directly contacting the concrete of the precast panel 1, an embedded part 5 matching the first groove 11 is embedded in the precast panel 1, and the protrusion 22 is directly embedded in the embedded part 5. The bolts 23 pass through the protrusion 22 and the embedded part 5 to avoid directly penetrating into the concrete, thereby strengthening the tensile strength of the connection structure of the precast panel 1.

[0054] The same precast panel 1 has four end faces, each of which can be connected to another precast panel 1, and an embedded part 5 is provided at the edge of each end face. Preferably, the embedded parts 5 of the same precast panel 1 can be connected with a full-length steel bar 6 or angle iron, so as to realize the transmission of tension between different embedded parts 5. The two embedded parts 5 on the upper and lower surfaces of the same precast panel 1 are welded or integrally formed to each other, so that the bolts 23 are completely prevented from contacting the concrete on the precast panel 1.

[0055] Furthermore, if Figure 6 As shown, the four end faces of the prefabricated panel 1 are edged with angle steel 7 or steel plates, which protects the prefabricated panel 1 and prevents the prefabricated panel 1 from being damaged during the construction process, which is conducive to the reuse of the prefabricated panel 1. At the same time, the edged angle steel 7 can also be welded to the embedded parts 5 to connect multiple embedded parts 5 into a whole. The gap between the two prefabricated panels 1 is filled with a waterproof sealing layer 8 to enhance the waterproof effect of the connection structure.

[0056] refer to Figure 7 When assembling multiple prefabricated panels 1, the hook of the lifting device can be placed in the first groove 11 for lifting, and then the positions of the two prefabricated panels 1 to be connected can be adjusted so that the first grooves 11 of the two prefabricated panels 1 correspond one to one; a connecting piece is placed on the upper and lower surfaces 15 of the joint, and the protrusions 22 of the connecting piece are respectively embedded in the first grooves 11 of the embedded parts 5 of the two prefabricated panels 1 to be connected, and a bolt 23 is passed through the two protrusions 22 on the upper and lower surfaces that are opposite to each other, and the nut 24 is screwed on the bolt 23 to clamp the two connecting pieces, thereby connecting the two prefabricated panels 1 together, and at the same time, the connecting plate 21, the nut 24 and the nut are all flush with the prefabricated panel 1; the gap between the two prefabricated panels 1 is sealed with a waterproof material to enhance the waterproof effect of the connection structure.

[0057] Based on the connection structure formed by the connection component 2 and the prefabricated panel 1, the connection strength is higher through the engagement of the protrusion 22 in the connection component 2 with the prefabricated panel 1, and the surface of the connection structure is flat, which is convenient for further construction of the top decorative layer of the prefabricated panel 1. In addition, the structure has the advantages of convenient assembly and disassembly, high connection strength, and can be reused, so it is suitable for floor slabs and wall panels of permanent structures; it is also suitable for temporary structures, especially for the construction of pavement structures of temporary roads.

[0058] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

Claims

1. A prefabricated panel connection structure, characterized in that: The invention comprises at least two prefabricated panels (1) spliced ​​to each other and a connection assembly (2) for connecting the prefabricated panels (1), wherein the upper and lower surfaces of the prefabricated panels (1) are provided with embedded parts (5); the spliced ​​parts of the prefabricated panels (1) are connected by connecting parts and bolts (23); The connection assembly comprises a connection piece and a bolt (23), wherein the connection pieces are arranged in pairs on the upper and lower surfaces of the prefabricated plate (1); each connection piece comprises an integrally formed connection plate (21) and two protrusions (22); a first groove (11) matching the protrusion (22) is arranged near the edge of the upper and lower surfaces of the prefabricated plate (1); the two protrusions (22) of the connection piece are respectively embedded in the first grooves (11) of the two prefabricated plates (1), and the bolt (23) passes through the protrusions (22) of the two connection pieces to clamp and fix the two connection pieces, thereby realizing the connection of the two prefabricated plates (1); The protrusion (22) is embedded in the first groove (11), and the connecting plate (21) is flush with the surface of the prefabricated plate (1); The protrusion (22) is provided with a second groove (12) matching the nut, the nut of the bolt is embedded in the second groove (12), and the surface of the nut is flush with the surface of the connecting plate (21); The protrusion (22) is provided with a third groove (13) matching with the nut (24); the nut (24) is screwed onto the bolt (23) and embedded in the third groove (13); the surface of the nut (24) is flush with the surface of the connecting plate (21); The end surface of the embedded part (5) in the prefabricated plate (1) is concave to form the first groove (11); The convex block (22) is in the shape of a cone or a hemisphere; The embedded parts (5) in the same prefabricated plate (1) are connected by using a continuous steel bar (6) or an angle iron; The two embedded parts (5) on the upper and lower surfaces of the same prefabricated plate (1) are welded to each other or formed in one piece.

2. The prefabricated panel connection structure according to claim 1 is characterized in that: The four end faces of the prefabricated plate (1) are provided with angle steel (7) or steel plate edging.

3. The prefabricated panel connection structure according to claim 1 is characterized in that: The gap between the two prefabricated panels (1) is filled with a waterproof sealing layer (8).

4. The prefabricated panel connection structure according to claim 1 is characterized in that: The connecting plate (21) is in a gourd shape or a shape formed by two trapezoidal upper bases being spliced ​​together.

5. An application of a prefabricated panel connection structure, characterized in that: The prefabricated panel connection structure as claimed in claim 1 is applied to a floor structure, a wall panel structure or a road pavement structure in a building.

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