A concrete prefabricated panel connection structure and a concrete prefabricated panel

Abstract

The present application relates to a concrete precast panel connection structure and a concrete precast panel, wherein the concrete precast panel connection structure comprises: a connection body extending in a first direction, the connection body being hollow; a first connection part being arranged at the end face of the connection body in a second direction; the first connection part comprising a first sub-part and a second sub-part extending in the first direction, the distance between the first sub-part and the second sub-part gradually decreasing in a direction away from the connection body; the connection body comprising a plurality of first through holes located between the first sub-part and the second sub-part; a second connection part being arranged at the end face of the connection body in a third direction; the second connection part comprising a third sub-part and a fourth sub-part extending in the first direction, the distance between the third sub-part and the third sub-part gradually decreasing in a direction away from the connection body; and the connection body comprising a plurality of second through holes located between the third sub-part and the fourth sub-part. The present application can improve the connection strength of the concrete precast panel.

Description

Technical Field

[0001] The present application relates to the technical field of prefabricated panels for assembled buildings, and in particular to a prefabricated concrete panel connection structure and a prefabricated concrete panel. Background Art

[0002] Compared with conventional construction models, prefabricated and assembled buildings have obvious advantages in environmental protection, resource conservation, and construction progress. In prefabricated construction projects, concrete precast panels are widely used due to their quick manufacturing and good structural strength. Most of the existing concrete precast panels are cast with ordinary concrete (mainly including cement stone and mortar, etc.). Concrete precast panels can be used to make house walls and roofs, roads or bridge pavements. Concrete precast panels are usually made into rectangular plates, and a plurality of through holes for steel bars to pass through are set along one end of the rectangular plate. When installing the concrete precast panels, slurry is poured in the through holes to fix the concrete precast panels. However, when using concrete precast panels to make house walls, it is difficult to achieve a good connection on the sides where no through holes are set, resulting in the connection strength failing to meet the requirements. Summary of the invention

[0003] In view of the above analysis, the present application aims to provide a precast concrete panel connection structure and a precast concrete panel, which can improve the connection strength of the precast concrete panel.

[0004] The purpose of this application is mainly achieved through the following technical solutions:

[0005] In a first aspect, an embodiment of the present application provides a concrete precast panel connection structure, comprising: a connection body extending along a first direction, the connection body being hollow and used for pouring concrete slurry; a first connection portion, arranged on an end face of the connection body along a second direction, the first direction and the second direction being perpendicular; the first connection portion comprises a first sub-portion and a second sub-portion extending along the first direction, the distance between the first sub-portion and the second sub-portion gradually decreasing along the second direction away from the connection body; the connection body comprises a plurality of first through holes located between the first sub-portion and the second sub-portion; a second connection portion, arranged on an end face of the connection body along a third direction, the first direction and the third direction being perpendicular; the second connection portion comprises a third sub-portion and a fourth sub-portion extending along the first direction, the distance between the third sub-portion and the fourth sub-portion gradually decreasing along the third direction away from the connection body; the connection body comprises a plurality of second through holes located between the third sub-portion and the fourth sub-portion.

[0006] According to an embodiment of the first aspect of the present application, the connection body includes a steel bar opening and a pouring opening, and the steel bar opening and the pouring opening are respectively located at two ends of the connection body along the first direction.

[0007] According to an embodiment of the first aspect of the present application, an angle formed by a direction away from the connection body along the second direction and a direction away from the connection body along the third direction is a0, and 0°<a0≤180°.

[0008] According to the embodiment of the first aspect of the present application, the first sub-section and the second sub-section are both plate-shaped, the first sub-section and the second sub-section are both parallel to the first direction, and the acute angle formed by the first sub-section and the second direction is a1, 0°<a1<90°; the third sub-section and the fourth sub-section are both plate-shaped, the third sub-section and the fourth sub-section are both parallel to the first direction, and the acute angle formed by the third sub-section and the fourth sub-section with the third direction is a2, 0°<a2<90°.

[0009] According to an embodiment of the first aspect of the present application, a0≤a1+a2, and a1=a2.

[0010] According to an embodiment of the first aspect of the present application, a first connecting tooth is provided on a side of the first sub-section facing the second sub-section, and a second connecting tooth is provided on a side of the second sub-section facing the first sub-section; a third connecting tooth is provided on a side of the third sub-section facing the fourth sub-section, and a fourth connecting tooth is provided on a side of the fourth sub-section facing the third sub-section.

[0011] According to an embodiment of the first aspect of the present application, reinforcing ribs are provided between the first sub-section and the connection body, between the second sub-section and the connection body, between the third sub-section and the connection body, and between the fourth sub-section and the connection body.

[0012] According to an embodiment of the first aspect of the present application, it also includes a plurality of first connecting steel bars and second connecting steel bars, the first connecting steel bars extend along the second direction and are arranged between the first sub-section and the second sub-section, and the second connecting steel bars extend along the third direction and are arranged between the third sub-section and the fourth sub-section.

[0013] In a second aspect, an embodiment of the present application provides a precast concrete panel, comprising: at least one precast concrete panel connection structure of an embodiment of the first aspect of the present application; at least two precast concrete panel bodies, the end faces of the precast concrete panel bodies being provided with two connecting grooves with triangular cross-sections, the connecting grooves extending along a first direction, the connecting grooves of the two precast concrete panel bodies being respectively plugged into the first connecting portion and the second connecting portion.

[0014] According to an embodiment of the second aspect of the present application, the first sub-section and the second sub-section are both plate-shaped, the first sub-section and the second sub-section are both parallel to the first direction, and the acute angles formed between the first sub-section and the second direction are a1, 0°<a1<90°; the third sub-section and the fourth sub-section are both plate-shaped, the third sub-section and the fourth sub-section are both parallel to the first direction, and the acute angles formed between the third sub-section and the fourth sub-section and the third direction are a2, 0°<a2<90°; the cross-section of the connecting groove is a right triangle, and the surface corresponding to the hypotenuse of the right triangle abuts against the side of the first sub-section facing away from the second sub-section, the side of the second sub-section facing away from the first sub-section, the side of the third sub-section facing away from the fourth sub-section, or the side of the fourth sub-section facing away from the third sub-section.

[0015] In a concrete precast panel connection structure and a concrete precast panel provided by an embodiment of the present application, the first connection part and the second connection part of the concrete precast panel connection structure can be inserted into the connection groove of the concrete precast panel body, so that the concrete precast panel connection structure and the slow-setting soil precast panel body can be connected into a whole. The connection body is hollow, and a first through hole is provided between the first sub-part and the second sub-part, and a second through hole is provided between the third sub-part and the fourth sub-part. When concrete slurry is poured into the connection body, the slurry can enter the connection groove of the concrete precast panel body through the first through hole and the second through hole, and the concrete precast panel body is firmly connected with the first connection part or the second connection part. When the concrete precast panel body generates torque on the concrete precast panel connection structure, the first sub-part, the second sub-part, the third sub-part and the fourth sub-part can provide a reaction force to improve the structural strength of the concrete precast panel body to the concrete precast panel connection structure.

[0016] In the present application, the above-mentioned technical solutions can also be combined with each other to achieve more preferred combination solutions. Other features and advantages of the present application will be described in the subsequent description, and some advantages can become obvious from the description, or can be understood by practicing the present application. The purpose and other advantages of the present application can be realized and obtained through the contents particularly pointed out in the description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are only for the purpose of illustrating specific embodiments and are not to be considered as limiting the present application. The same reference symbols denote the same components throughout the accompanying drawings.

[0018] Figure 1 It is a structural schematic diagram of a concrete precast panel in the related technology.

[0019] Figure 2 It is a side view of a precast concrete panel in the related art.

[0020] Figure 3 A structural schematic diagram of a precast concrete panel connection structure according to an embodiment of the present application.

[0021] Figure 4 Another structural schematic diagram of the precast concrete panel connection structure according to an embodiment of the present application.

[0022] Figure 5 A side view of the precast concrete panel connection structure according to an embodiment of the present application.

[0023] Figure 6 Another side view of the precast concrete panel connection structure according to an embodiment of the present application.

[0024] Figure 7 A structural schematic diagram of a precast concrete panel according to an embodiment of the present application.

[0025] Figure 8 A structural schematic diagram of a precast concrete panel body of a precast concrete panel according to an embodiment of the present application.

[0026] Fig. 9 A side view of a precast concrete panel body of a precast concrete panel according to an embodiment of the present application.

[0027] Fig.10 A side view of a precast concrete panel according to an embodiment of the present application.

[0028] Fig.11 for Fig.10 An enlarged view of the concrete precast panel in area A of an embodiment of the present application.

[0029] Reference numerals:

[0030] 100, connection structure; 200, precast concrete panel; 201, connection groove;

[0031] 1. Connecting body; 11. First through hole; 12. Second through hole; 13. Steel bar opening; 14. Pouring opening;

[0032] 2. first connecting portion; 21. first sub-portion; 22. second sub-portion;

[0033] 3. second connecting portion; 31. third sub-portion; 32. fourth sub-portion;

[0034] X, first direction; Y, second direction; Z, third direction. DETAILED DESCRIPTION

[0035] The features and exemplary embodiments of various aspects of the application will be described in detail below. In the detailed description below, many specific details are proposed to provide a comprehensive understanding of the application. However, it is obvious to those skilled in the art that the application can be implemented when some details in these specific details are not needed. The following description of the embodiments is only to provide a better understanding of the application by illustrating the example of the application.

[0036] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The embodiments will be described in detail below in conjunction with the accompanying drawings.

[0037] Relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device that includes a series of elements includes not only those elements, but also other elements that are not explicitly listed, or also includes elements that are inherent to such process, method, article, or device. In the absence of further restrictions, the elements defined by the statement "comprising ..." do not exclude the presence of additional identical elements in the process, method, article, or device that includes the elements.

[0038] It should be understood that when describing the structure of a component, when a layer or a region is referred to as being "on" or "over" another layer or another region, it may mean that it is directly on the other layer or another region, or that other layers or regions are included between it and the other layer or another region. Moreover, if the component is turned over, the layer or a region will be "below" or "beneath" another layer or another region.

[0039] In addition, the term "and / or" in this article is only a description of the association relationship between the associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0040] It should be understood that in the embodiment of the present application, "B corresponding to A" means that B is associated with A, and B can be determined according to A. However, it should also be understood that determining B according to A does not mean determining B only according to A, and B can also be determined according to A and / or other information.

[0041] Figure 1 It is a structural schematic diagram of a concrete precast panel in the related technology. Figure 2It is a side view of a precast concrete panel in the related art.

[0042] The applicant found that please refer to Figure 1 and Figure 2 The concrete precast panels are usually rectangular panels with a certain thickness, with through holes on one pair of sides, and the other pair of sides are usually flat. When using concrete precast panels to make house walls, multiple steel bars are erected on the ground and passed through the through holes of the concrete precast panels. The vertical sides of multiple concrete precast panels are often aligned and connected with cement. The firmness of the connection between two concrete precast panels is often unclear, especially when the two concrete precast panels are at a certain tilt angle (for example, vertical), the sides of the concrete precast panels are difficult to align, further reducing the firmness of the connection.

[0043] In view of the above analysis, the applicant proposes a concrete precast panel connection structure and a concrete precast panel. The concrete precast panel connection structure and the concrete precast panel include a connection body, a first connection part and a second connection part. The first connection part and the second connection part of the concrete precast panel connection structure can be inserted into the connection groove of the concrete precast panel body, so that the concrete precast panel connection structure and the slow-setting soil precast panel body can be connected into a whole. The connection body is hollow, and a first through hole is provided between the first sub-part and the second sub-part, and a second through hole is provided between the third sub-part and the fourth sub-part. When concrete slurry is poured into the connection body, the slurry can enter the connection groove of the concrete precast panel body through the first through hole and the second through hole, and the concrete precast panel body is firmly connected with the first connection part or the second connection part. When the concrete precast panel body generates torque on the concrete precast panel connection structure, the first sub-part, the second sub-part, the third sub-part and the fourth sub-part can provide a reaction force to improve the structural strength of the concrete precast panel body to the concrete precast panel connection structure.

[0044] Figure 3 A structural schematic diagram of a precast concrete panel connection structure according to an embodiment of the present application. Figure 4 Another structural schematic diagram of the precast concrete panel connection structure according to an embodiment of the present application. Figure 5 A side view of the precast concrete panel connection structure according to an embodiment of the present application. Figure 6 Another side view of the precast concrete panel connection structure according to an embodiment of the present application.

[0045] See also Figures 3 to 6The embodiment of the present application provides a concrete precast panel connection structure 100, comprising: a connection body 1 extending along a first direction X, the connection body 1 being hollow and used for pouring concrete slurry; a first connection part 2, arranged at an end face of the connection body 1 along a second direction Y, the first direction X and the second direction Y being perpendicular; the first connection part 2 comprises a first sub-part 21 and a second sub-part 22 extending along the first direction X, and the distance between the first sub-part 21 and the second sub-part 22 gradually decreases in a direction away from the connection body 1 along the second direction Y; the connection body 1 comprises a plurality of first through holes 11 located between the first sub-part 21 and the second sub-part 22; a second connection part 3, arranged at an end face of the connection body 1 along a third direction Z, the first direction X and the third direction Z being perpendicular; the second connection part 3 comprises a third sub-part 31 and a fourth sub-part 32 extending along the first direction X, and the distance between the third sub-part 31 and the fourth sub-part 32 gradually decreases in a direction away from the connection body 1 along the third direction Z; the connection body 1 comprises a plurality of second through holes 12 located between the third sub-part 31 and the fourth sub-part 32.

[0046] In the embodiment of the present application, the concrete precast panels can be used as the walls or roofs of houses. For the sake of convenience, in the embodiment of the present application, the concrete precast panels are used to make the walls of houses as an example. Therefore, the first direction X can be regarded as a vertical direction, and the second direction Y and the third direction Z are both perpendicular to the first direction X, and both can be horizontal directions. It should be noted that, considering that the second direction Y and the third direction Z correspond to the extension directions of the concrete precast panels connected to the concrete precast panel connection structure 100 of the embodiment of the present application, the second direction Y and the third direction Z can be parallel or non-parallel. For the sake of convenience of understanding, in the embodiment of the present application, the second direction Y and the third direction Z are perpendicular to each other as an example for explanation.

[0047] The connection body 1 as the main part of the connection structure 100 of the embodiment of the present application is in a columnar shape, wherein at least two side walls can be connected to two precast concrete panels respectively. When the connection structure 100 of the embodiment of the present application is not connected to the precast concrete panel, the connection body 1 is hollow; after the connection structure 100 of the embodiment of the present application is connected to the precast concrete panel, the connection body 1 needs to be filled with concrete slurry.

[0048] The first connecting portion 2 is located at the end surface of the connecting body 1 along the second direction Y, and is used to connect with the concrete precast panel. The first sub-portion 21 and the second sub-portion 22 of the first connecting portion 2 both protrude from the end surface of the connecting body 1 along the second direction Y. When the connecting structure 100 of the embodiment of the present application is connected to the concrete precast panel, the first sub-portion 21 and the second sub-portion 22 can be inserted into the connecting groove 201 of the concrete precast panel. A plurality of first through holes 11 are provided on the end surface of the connecting body 1 along the second direction Y, which are connected to the interior of the connecting body 1 and are located between the first sub-portion 21 and the second sub-portion 22. After the connecting structure 100 of the embodiment of the present application is connected to the concrete precast panel, if concrete slurry is poured into the connecting body 1, the concrete slurry can flow out through the first through holes 11 to fill the gap between the first sub-portion 21, the second sub-portion 22 and the connecting groove 201 of the concrete precast panel, so that the connection between the connecting structure 100 of the embodiment of the present application and the concrete precast panel is more firmly established. When bending moment or shear force is generated between the precast concrete panel and the connection structure 100 of the embodiment of the present application, the first sub-section 21 and the second sub-section 22 inserted and fixed in the precast concrete panel can increase the opposite force, thereby improving the structural strength of the connection between the connection structure 100 of the embodiment of the present application and the precast concrete panel.

[0049] Similarly, the second connecting portion 3 is located at the end surface of the connecting body 1 along the third direction Z, and is used to connect with the concrete precast panel. The third sub-portion 31 and the fourth sub-portion 32 of the second connecting portion 3 both protrude from the end surface of the connecting body 1 along the third direction Z. When the connecting structure 100 of the embodiment of the present application is connected to the concrete precast panel, the third sub-portion 31 and the fourth sub-portion 32 can be inserted into the connecting groove 201 of the concrete precast panel. A plurality of second through holes 12 are provided on the end surface of the connecting body 1 along the third direction Z, which are connected to the interior of the connecting body 1 and are located between the third sub-portion 31 and the fourth sub-portion 32. After the connecting structure 100 of the embodiment of the present application is connected to the concrete precast panel, if concrete slurry is poured into the connecting body 1, the concrete slurry can flow out through the second through holes 12 to fill the gap between the third sub-portion 31, the fourth sub-portion 32 and the connecting groove 201 of the concrete precast panel, so that the connection between the connecting structure 100 of the embodiment of the present application and the concrete precast panel is more firmly established. When bending moment or shear force is generated between the precast concrete panel and the connection structure 100 of the embodiment of the present application, the third sub-section 31 and the fourth sub-section 32 inserted and fixed in the precast concrete panel can increase the opposite force, thereby improving the structural strength of the connection between the connection structure 100 of the embodiment of the present application and the precast concrete panel.

[0050] Through the first connecting part 2 and the second connecting part 3, the connecting structure 100 of the embodiment of the present application can firmly connect the vertical sides of the two precast concrete panels together and can withstand a certain external force. Considering that the second direction Y and the third direction Z can be parallel or intersecting, the two precast concrete panels can be used to make the same wall or different walls, and the wall angle is not limited, thereby improving the application range of the precast concrete panels.

[0051] Further, see Figures 3 to 6 The connection body 1 includes a steel bar opening 13 and a pouring opening 14, and the steel bar opening 13 and the pouring opening 14 are respectively located at two ends of the connection body 1 along the first direction X.

[0052] When a concrete prefabricated panel is used to make a house wall, a steel bar extending vertically from the ground is provided, and the steel bar can be inserted through the steel bar opening 13 of the connection body 1. After the connection structure 100 of the embodiment of the present application is connected to the concrete prefabricated panel, it is necessary to pour concrete slurry into the connection body 1 through the pouring opening 14, and fix the steel bar inserted into the connection body 1 inside the connection body 1 to fix the position of the connection structure 100 of the embodiment of the present application.

[0053] Further, see Figures 3 to 6 The angle formed by the direction away from the connection body 1 along the second direction Y and the direction away from the connection body 1 along the third direction Z is a0, 0°<a0≤180°.

[0054] Considering that the two precast concrete panels are respectively located in the direction of the connection structure 100 of the embodiment of the present application away from the connection body 1 along the second direction Y and away from the connection body 1 along the third direction Z. Therefore, a0 can be regarded as the angle formed by the two precast concrete panels. In the embodiment of the present application, the two precast concrete panels can be coplanar or inclined, so 0°<a0≤180°. Preferably, a0 is equal to 90° or 180°, that is, the two precast concrete panels are coplanar or perpendicular.

[0055] Further, see Figures 3 to 6 The first sub-portion 21 and the second sub-portion 22 are both plate-shaped, the first sub-portion 21 and the second sub-portion 22 are both parallel to the first direction X, and the acute angles formed by the first sub-portion 21 and the second sub-portion 22 with the second direction Y are a1, 0°<a1<90°; the third sub-portion 31 and the fourth sub-portion 32 are both plate-shaped, the third sub-portion 31 and the fourth sub-portion 32 are both parallel to the first direction X, and the acute angles formed by the third sub-portion 31 and the fourth sub-portion 32 with the third direction Z are a2, 0°<a2<90°.

[0056] The first sub-section 21 and the second sub-section 22 can be in the form of metal plates, forming an integral structure with the connecting body 1, or embedded in the connecting body 1. In the cross section perpendicular to the first direction X, the first sub-section 21 and the second sub-section 22 form two waists of a trapezoid. The acute angles formed by the first sub-section 21 and the second sub-section 22 and the second direction Y are equal, both are a1, and 0°<a1<90°, which can reduce the difficulty of making the connecting structure 100 of the embodiment of the present application. At this time, in the cross section perpendicular to the first direction X, the first sub-section 21 and the second sub-section 22 form two waists of an isosceles trapezoid. It should be noted that the distance between the first sub-section 21 and the second sub-section 22 becomes smaller and smaller in the direction away from the connecting body 1 along the second direction Y. When the connection structure 100 of the embodiment of the present application is connected to a precast concrete panel, the first sub-portion 21 and the second sub-portion 22 are inserted into the connection groove 201 of the precast concrete panel. If the connection structure 100 of the embodiment of the present application and the precast concrete panel generate a torque around an axis parallel to the first direction X, the force of the precast concrete panel acting on the first sub-portion 21 and the second sub-portion 22 is greater, and a reverse torque can be effectively applied, thereby improving the connection strength between the connection structure 100 of the embodiment of the present application and the precast concrete panel.

[0057] Similarly, the third sub-section 31 and the fourth sub-section 32 can be in the form of metal plates, forming an integral structure with the connecting body 1, or embedded in the connecting body 1. In the cross section perpendicular to the first direction X, the third sub-section 31 and the fourth sub-section 32 form two waists of a trapezoid. The acute angles formed by the third sub-section 31 and the fourth sub-section 32 with the third direction Z are equal, both are a2, and 0°<a2<90°, which can reduce the difficulty of making the connecting structure 100 of the embodiment of the present application. At this time, in the cross section perpendicular to the first direction X, the third sub-section 31 and the fourth sub-section 32 form two waists of an isosceles trapezoid. It should be noted that the distance between the third sub-section 31 and the fourth sub-section 32 becomes smaller and smaller in the direction away from the connecting body 1 along the third direction Z. When the connection structure 100 of the embodiment of the present application is connected to the precast concrete panel, the third sub-portion 31 and the fourth sub-portion 32 are inserted into the connection groove 201 of the precast concrete panel. If the connection structure 100 of the embodiment of the present application and the precast concrete panel generate a torque around an axis parallel to the first direction X, the force exerted by the precast concrete panel on the third sub-portion 31 and the fourth sub-portion 32 is greater, and a reverse torque can be effectively applied, thereby improving the connection strength between the connection structure 100 of the embodiment of the present application and the precast concrete panel.

[0058] Further, see Figures 3 to 6 In the embodiment of the present application, a0≤a1+a2, and a1=a2.

[0059] Considering that 0°<a1<90°, and 0°<a2<90°, a0<180°, that is, the two precast concrete panels connected to the connection structure 100 of the embodiment of the present application are inclined relative to each other to form two different walls of the house. Take the example that the first subsection 21 is closer to the third subsection 31 than the second subsection 22, and the third subsection 31 is closer to the first subsection 21 than the fourth subsection 32. At this time, if the two precast concrete panels generate relative torque, the first subsection 21 and the third subsection 31 mainly generate opposite torque. Since a0≤a1+a2, the first subsection 21, the third subsection 31 and the connection body 1 can be regarded as forming a triangular pyramid, so that the structure formed by the three is more stable, thereby improving the connection strength between the connection structure 100 of the embodiment of the present application and the precast concrete panel.

[0060] Further, see Figures 3 to 6 The first sub-section 21 is provided with a first connecting tooth on the side facing the second sub-section 22, and the second sub-section 22 is provided with a second connecting tooth on the side facing the first sub-section 21; the third sub-section 31 is provided with a third connecting tooth on the side facing the fourth sub-section 32, and the fourth sub-section 32 is provided with a fourth connecting tooth on the side facing the third sub-section 31.

[0061] Considering that in the cross section perpendicular to the first direction X, the first sub-section 21 and the second sub-section 22 form two waists of an isosceles trapezoid, when the first sub-section 21 and the second sub-section 22 are inserted into the mounting groove of the precast concrete panel, there is a gap between the side of the first sub-section 21 facing the second sub-section 22 and the side of the second sub-section 22 facing the first sub-section 21 and the precast concrete panel, which needs to be filled by pouring concrete slurry into the connection body 1. The first connecting teeth and the second connecting teeth can improve the adhesion of the poured concrete, thereby improving the firmness of the connection between the first sub-section 21 and the second sub-section 22, and reducing the risk of the first sub-section 21 and the second sub-section 22 falling off from the precast concrete panel.

[0062] Furthermore, reinforcing ribs (not shown in the figure) are provided between the first sub-portion 21 and the connection body 1 , between the second sub-portion 22 and the connection body 1 , between the third sub-portion 31 and the connection body 1 , and between the fourth sub-portion 32 and the connection body 1 .

[0063] When the precast concrete panel and the connection structure 100 of the embodiment of the present application generate torque, the reverse torque is mainly generated by the first sub-section 21, the second sub-section 22, the third sub-section 31 or the fourth sub-section 32. Considering that the first sub-section 21, the second sub-section 22, the third sub-section 31 or the fourth sub-section 32 all adopt a plate-shaped structure, the reinforcing ribs can improve the bending resistance of the first sub-section 21, the second sub-section 22, the third sub-section 31 or the fourth sub-section 32.

[0064] Furthermore, the connection structure 100 of the embodiment of the present application also includes a plurality of first connecting steel bars and second connecting steel bars, the first connecting steel bars extending along the second direction Y and being arranged between the first sub-section 21 and the second sub-section 22, and the second connecting steel bars extending along the third direction Z and being arranged between the third sub-section 31 and the fourth sub-section 32.

[0065] When the first subsection 21 and the second subsection 22 of the connection structure 100 of the embodiment of the present application are inserted into the concrete precast panel, since the first connection steel bar extends along the second direction Y and is arranged between the first subsection 21 and the second subsection 22, the first connection steel bar can be inserted into the corresponding hole of the concrete precast panel to improve the ability of the connection structure 100 of the embodiment of the present application to resist shear force at the connection with the concrete precast panel. Similarly, when the third subsection 31 and the fourth subsection 32 of the connection structure 100 of the embodiment of the present application are inserted into the concrete precast panel, since the second connection steel bar extends along the third direction Z and is arranged between the third subsection 31 and the fourth subsection 32, the second connection steel bar can be inserted into the corresponding hole of the concrete precast panel to improve the ability of the connection structure 100 of the embodiment of the present application to resist shear force at the connection with the concrete precast panel.

[0066] Figure 7 A structural schematic diagram of a precast concrete panel according to an embodiment of the present application. Figure 8 A structural schematic diagram of a precast concrete panel body of a precast concrete panel according to an embodiment of the present application. Fig. 9 A side view of a precast concrete panel body of a precast concrete panel according to an embodiment of the present application. Fig.10 A side view of a precast concrete panel according to an embodiment of the present application. Fig.11 for Fig.10 An enlarged view of the concrete precast panel in area A of an embodiment of the present application.

[0067] See also Figures 7 to 11 The embodiment of the present application also provides a precast concrete panel, including: the precast concrete panel connection structure 100 of the aforementioned embodiment of the present application; at least two precast concrete panel bodies 200, the end faces of the precast concrete panel bodies 200 are provided with two connecting grooves 201 with triangular cross-sections, the connecting grooves 201 extend along the first direction X, and the connecting grooves 201 of the two precast concrete panel bodies 200 are respectively plugged into the first connecting portion 2 and the second connecting portion 3.

[0068] In the embodiment of the present application, the number of the precast concrete panels 200 can be multiple, and any two adjacent precast concrete panels 200 are connected by a connecting structure 100. It can be understood that the multiple precast concrete panels 200 can be coplanar and used to make a single wall of a house; the multiple precast concrete panels 200 can also be non-coplanar and used to make more than a plurality of continuous walls of a house.

[0069] When installing the concrete precast panel of the embodiment of the present application, the connection structure 100 can be fixed first, and then one concrete precast panel body 200 is plugged into the first connection part 2 of the connection structure 100, and then the other concrete precast panel body 200 is plugged into the second connection part 3 of the connection structure 100, and then concrete slurry is poured into the connection body 1 to fix the two concrete precast panels 200 and the connection structure 100 together. Considering that the structures of the first connection part 2 and the second connection part 3 are the same, the shapes of the connection grooves 201 of the two concrete precast panels 200 can also be the same, so as to facilitate the mass production of the concrete precast panels 200.

[0070] Further, see Figures 7 to 11 The first sub-portion 21 and the second sub-portion 22 are both plate-shaped, the first sub-portion 21 and the second sub-portion 22 are both parallel to the first direction X, and the acute angles formed by the first sub-portion 21 and the second sub-portion 22 with the second direction Y are a1, 0°<a1<90°; the third sub-portion 31 and the fourth sub-portion 32 are both plate-shaped, the third sub-portion 31 and the fourth sub-portion 32 are both parallel to the first direction X, and the acute angles formed by the third sub-portion 31 and the fourth sub-portion 32 with the third direction Z are a2, 0°<a2<90°; the cross-section of the connecting groove 201 is a right triangle, and the surface corresponding to the hypotenuse of the right triangle abuts against the side of the first sub-portion 21 away from the second sub-portion 22, the side of the second sub-portion 22 away from the first sub-portion 21, the side of the third sub-portion 31 away from the fourth sub-portion 32, or the side of the fourth sub-portion 32 away from the third sub-portion 31.

[0071] In the cross section perpendicular to the first direction X, the first sub-section 21 and the second sub-section 22 form two waists of an isosceles trapezoid. During the plugging process of the precast concrete panel 200 and the first connecting portion 2, the first sub-section 21 and the second sub-section 22 form a right triangle relative to the movement trajectory of the precast concrete panel 200. Similarly, the third sub-section 31 and the fourth sub-section 32 form a right triangle relative to the movement trajectory of the precast concrete panel 200. Making the cross section of the connecting groove 201 a right triangle can minimize the impact on the material consumption of the precast concrete panel 200 when slotting, thereby reducing the impact of setting the connecting groove 201 on the structural strength of the precast concrete panel 200. Considering that the concrete slurry flowing in through the first through hole 11 and the second through hole 12 is difficult to reach the side of the first sub-section 21 away from the second sub-section 22, the side of the second sub-section 22 away from the first sub-section 21, the side of the third sub-section 31 away from the fourth sub-section 32, and the side of the fourth sub-section 32 away from the third sub-section 31, the firmness of the connection between the connection structure 100 and the concrete precast panel 200 can be improved by making the surface corresponding to the hypotenuse of the right triangle abut against the side of the first sub-section 21 away from the second sub-section 22, the side of the second sub-section 22 away from the first sub-section 21, the side of the third sub-section 31 away from the fourth sub-section 32, or the side of the fourth sub-section 32 away from the third sub-section 31.

[0072] In summary, the embodiment of the present application provides a concrete precast panel connection structure and a concrete precast panel. The first connection part and the second connection part of the concrete precast panel connection structure can be inserted into the connection groove of the concrete precast panel body, so that the concrete precast panel connection structure and the slow-setting soil precast panel body can be connected into a whole. The connection body is hollow, and a first through hole is provided between the first sub-part and the second sub-part, and a second through hole is provided between the third sub-part and the fourth sub-part. When concrete slurry is poured into the connection body, the slurry can enter the connection groove of the concrete precast panel body through the first through hole and the second through hole, and the concrete precast panel body is firmly connected with the first connection part or the second connection part. When the concrete precast panel body generates torque on the concrete precast panel connection structure, the first sub-part, the second sub-part, the third sub-part and the fourth sub-part can provide a reaction force to improve the structural strength of the concrete precast panel body to the concrete precast panel connection structure.

[0073] The above is only a preferred specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by any technician familiar with the technical field within the technical scope disclosed in the present application should be covered within the protection scope of the present application.

Claims

1. A precast concrete panel connection structure, characterized in that: include: A connecting body extending along a first direction, wherein the connecting body is hollow and is used for pouring concrete slurry; A first connecting portion is arranged on an end surface of the connecting body along a second direction, the first direction and the second direction being perpendicular; the first connecting portion comprises a first sub-portion and a second sub-portion extending along the first direction, and a distance between the first sub-portion and the second sub-portion gradually decreases in a direction away from the connecting body along the second direction; the connecting body comprises a plurality of first through holes located between the first sub-portion and the second sub-portion; The second connecting portion is arranged on the end face of the connecting body along the third direction, and the first direction is perpendicular to the third direction; the second connecting portion includes a third sub-portion and a fourth sub-portion extending along the first direction, and the distance between the third sub-portion and the fourth sub-portion gradually decreases along the third direction away from the connecting body; the connecting body includes a plurality of second through holes located between the third sub-portion and the fourth sub-portion.

2. The precast concrete panel connection structure according to claim 1, characterized in that: The connection body comprises a steel bar opening and a pouring opening, and the steel bar opening and the pouring opening are respectively located at two ends of the connection body along the first direction.

3. The precast concrete panel connection structure according to claim 1, characterized in that: An angle formed by a direction away from the connection body along the second direction and a direction away from the connection body along the third direction is a0, and 0°<a0≤180°.

4. The precast concrete panel connection structure according to claim 3, characterized in that: The first sub-portion and the second sub-portion are both plate-shaped, the first sub-portion and the second sub-portion are both parallel to the first direction, and the acute angle formed between the first sub-portion and the second sub-portion and the second direction is a1, 0°<a1<90°; The third sub-portion and the fourth sub-portion are both plate-shaped, and are both parallel to the first direction. The acute angle formed between the third sub-portion and the fourth sub-portion and the third direction is a2, and 0°<a2<90°.

5. The precast concrete panel connection structure according to claim 4, characterized in that: a0≤a1+a2, and a1=a2.

6. The precast concrete panel connection structure according to claim 4, characterized in that: A first connecting tooth is disposed on a side of the first sub-part facing the second sub-part, and a second connecting tooth is disposed on a side of the second sub-part facing the first sub-part; A third connecting tooth is disposed on a side of the third sub-section facing the fourth sub-section, and a fourth connecting tooth is disposed on a side of the fourth sub-section facing the third sub-section.

7. The precast concrete panel connection structure according to claim 4, characterized in that: Reinforcement ribs are provided between the first sub-section and the connection body, between the second sub-section and the connection body, between the third sub-section and the connection body, and between the fourth sub-section and the connection body.

8. The precast concrete panel connection structure according to claim 1, characterized in that: It also includes a plurality of first connecting steel bars and second connecting steel bars, wherein the first connecting steel bars extend along the second direction and are arranged between the first sub-section and the second sub-section, and the second connecting steel bars extend along the third direction and are arranged between the third sub-section and the fourth sub-section.

9. A precast concrete panel, characterized in that: include: At least one precast concrete panel connection structure according to any one of claims 1 to 8; At least two precast concrete panels, the end faces of the precast concrete panels are provided with two connecting grooves with triangular cross-sections, the connecting grooves extend along the first direction, and the connecting grooves of the two precast concrete panels are respectively plugged into the first connecting portion and the second connecting portion.

10. The precast concrete panel according to claim 9, characterized in that: The first sub-portion and the second sub-portion are both plate-shaped, the first sub-portion and the second sub-portion are both parallel to the first direction, and the acute angle formed between the first sub-portion and the second sub-portion and the second direction is a1, 0°<a1<90°; the third sub-portion and the fourth sub-portion are both plate-shaped, the third sub-portion and the fourth sub-portion are both parallel to the first direction, and the acute angle formed between the third sub-portion and the fourth sub-portion and the third direction is a2, 0°<a2<90°; The cross-section of the connecting groove is a right triangle, and the surface corresponding to the hypotenuse of the right triangle abuts against the side of the first sub-section facing away from the second sub-section, the side of the second sub-section facing away from the first sub-section, the side of the third sub-section facing away from the fourth sub-section, or the side of the fourth sub-section facing away from the third sub-section.

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