Wallboard connecting structure of prefabricated building

Abstract

The utility model discloses a wallboard connecting structure of a prefabricated building, which comprises a prefabricated first wallboard and a prefabricated second wallboard, and one end of the first wallboard is connected with one end or one side of the second wallboard; each of the first wallboard and the second wallboard comprises a foam concrete wall body, and a plurality of vertical pipes are distributed in the wall bodies at intervals; a first connecting piece is arranged on the vertical pipe at the end part of the first wallboard, and is provided with a first connecting groove; a vertical pipe of the second wallboard is provided with a second connecting piece, and the second connecting piece is provided with a second connecting groove; a third connecting piece is arranged between the first connecting groove and the second connecting groove; and grouting materials (high-strength grouting materials) are filled in the two connected vertical pipes, in the first connecting groove, in the second connecting groove and in a gap between the first wallboard and the second wallboard. The connecting structure is simple in structure, convenient to construct, strong in pulling force, easy to prefabricate and form, and capable of greatly improving the assembling construction efficiency and reducing the production and use cost.

Description

Technical Field

[0001] The utility model relates to the field of prefabricated buildings, in particular to a wall panel connection structure of a prefabricated prefabricated building. Background Art

[0002] Existing prefabricated house wall panels are typically single-piece panels with only connection holes at the bottom for connecting with rebar. This type of wall panel has poor load-bearing capacity. Furthermore, connecting the wall panels requires concrete columns for support. During pouring, formwork is fixed outside the joints between the two wall panels, creating a columnar cavity between the formwork and the wall for pouring the columns. This pouring method requires additional formwork, which is inconvenient. Furthermore, installation efficiency is low, installation is slow, and costs are high.

[0003] In order to realize industrialized mass production of houses in factories, assemble them more quickly, and not damage the interior and exterior decorations already completed in the factory during the assembly process, either the assembly process of the houses is more complicated and tedious, or the production of prefabricated components of the houses is more difficult. It is impossible to achieve both, resulting in extremely high costs and unfavorable promotion.

[0004] Therefore, it is necessary to design a prefabricated and assembled connection structure that makes the prefabricated components easy to produce and the assembly process simple, so as to lower the construction cost. Utility Model Content

[0005] In view of the above-mentioned shortcomings of the prior art, the purpose of the present invention is to solve the problems of complex cavity connection structure, cumbersome assembly and poor stability of the existing cavity connection structure, and to provide a wall panel connection structure for prefabricated and assembled buildings, which has a simple structure, convenient construction, strong tensile strength, and is easy to prefabricate and form, which can greatly improve the assembly and construction efficiency and reduce production and use costs.

[0006] To solve the above-mentioned technical problems, the present invention adopts a technical solution as follows: a wall panel connection structure for a prefabricated and assembled building, comprising a first and a second prefabricated wall panel, one end of the first wall panel being connected to one end or one side of the second wall panel; the structure being characterized in that: the first and second wall panels each comprise a foam concrete wall body, wherein a plurality of risers are spaced apart along the length of the wall body, the riser at one end of the first wall panel being connected to a riser at a corresponding position in the second wall panel; wherein a first connecting member is provided on a side of the riser at an end of the first wall panel proximate to the second wall panel, the first connecting member having a first connecting groove on a side facing away from the riser; wherein a second connecting member is provided on a side of the riser at a position corresponding to the first wall panel proximate to the first wall panel, the second connecting member having a second connecting groove on a side facing away from the riser; the first connecting groove of the first connecting member and the second connecting groove of the second connecting member are disposed opposite each other, and a third connecting member is provided between the first and second connecting grooves; and grouting material (high-strength grouting material) is filled in the two connected risers, the first connecting groove, the second connecting groove, and the gap between the first and second wall panels.

[0007] Furthermore, both sides of the risers in the first wall panel and the second wall panel are covered with wire mesh.

[0008] Furthermore, the first connecting member, the second connecting member and the third connecting member are all arranged along the length direction of the standpipe, and their lengths are consistent with the length of the standpipe.

[0009] Furthermore, the first connecting member and the second connecting member have the same structure and are both U-shaped in cross-section. The bottom plates of the first connecting member and the second connecting member are respectively connected to the corresponding vertical pipes through the fourth connecting member; the free sides of the two side plates of the first connecting member and the second connecting member are bent in opposite directions and extended to form a force transmission section.

[0010] Furthermore, there are two third connecting members, each of which has a C-shaped cross-section, and the two third connecting members are respectively sleeved on the outside of the force transmission section on the same side of the first connecting member and the second connecting member.

[0011] Furthermore, the free side of the force transmission section is bent and extended toward the vertical pipe, and correspondingly, the two sides of the third connecting member are bent and extended toward opposite directions.

[0012] Furthermore, the cross section of the third connecting member is H-shaped, and the two flange plates of the third connecting member are respectively located in the first connecting groove and the second connecting groove, and the two side edges of the flange plates extend to be staggered with the force transmission section.

[0013] Furthermore, the first connecting member and the second connecting member have the same structure, each comprising two connecting plates, which are fixedly connected to the riser via a fourth connecting member, and a first connecting groove or a second connecting groove is formed between the two connecting plates and one side of the riser; the edges of the two connecting plates on one side away from the riser are bent in opposite directions and extended to form a force transmission section; there are two third connecting members, each having a C-shaped cross-section, and the two third connecting members are respectively sleeved on the outside of the force transmission section on the same side of the first connecting member and the second connecting member.

[0014] Furthermore, the first connecting member and the second connecting member have the same structure and are both U-shaped in cross-section, wherein one side plate of the first connecting member and the second connecting member are respectively connected to the corresponding vertical pipe, the first connecting member is located on one side of the vertical pipe, and the second connecting member is located on the other side of the vertical pipe, and the notches of the first connecting member and the second connecting member have staggered parts; and steel bars are vertically arranged in the staggered parts of the first connecting member and the second connecting member.

[0015] Compared with the prior art, the utility model has the following advantages:

[0016] 1. Simple structure and easy processing; the first connecting member and the second connecting member are respectively connected to the first wall panel and the second wall panel for connecting the vertical pipe, and then the wall panel is prefabricated, so that the prefabrication of the wall panel with the connection structure can be quickly realized, and the production efficiency is higher.

[0017] 2. After the wall panels are assembled, a third connector is set between the first connector and the second connector, and then high-strength grouting material is poured into the vertical pipe, the first connecting groove, and the second connecting groove. In this way, the first connector and the second connector are directly connected through the third connector, or the third connector is connected to the first connector and the second connector after high-strength grouting material. This can quickly form a better tie structure with higher rigidity and strength. At the same time, pouring high-strength grouting material into the vertical pipe can also improve the load-bearing, tensile and shear resistance of the connection area, thereby improving the reliability and stability of the wall after assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic structural diagram of Example 1 of the present utility model.

[0019] Figure 2 This is a schematic structural diagram of Example 2 of the present utility model.

[0020] Figure 3 This is a schematic structural diagram of Example 3 of the present utility model.

[0021] Figure 4 This is a schematic structural diagram of Example 4 of the present utility model.

[0022] Figure 5 This is a schematic structural diagram of Example 5 of the present utility model.

[0023] Figure 6 This is a schematic structural diagram of Example 6 of the present utility model.

[0024] Figure 7 This is a structural diagram of Example 7 of the present utility model.

[0025] Figure 8 This is a schematic structural diagram of Example 8 of the present utility model.

[0026] In the figure: 1—first wall panel, 2—second wall panel, 3—riser pipe, 4—first connecting piece, 5—second connecting piece, 6—third connecting piece, 7—reinforcement bar. DETAILED DESCRIPTION

[0027] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0028] Example 1, see Figure 1 A wall panel connection structure for a prefabricated building includes a prefabricated first wall panel 1 and a second wall panel 2, wherein one end of the first wall panel 1 is connected to one end or one side of the second wall panel 2. In this embodiment, one end of the first wall panel 1 is connected to one side of the second wall panel 2.

[0029] The first and second wall panels 1, 2 each comprise a foam concrete wall, within which multiple risers 3 are spaced apart along the length. In implementation, the risers 3 are formed from integrally formed rectangular tubes or from two steel channels spliced together, which provides improved stability and lowers costs. The first and second wall panels 1, 2 are prefabricated panels that, after being processed and formed in a factory, can be transported to the construction site for direct assembly, thereby improving building efficiency. Both sides of the risers 3 within the first and second wall panels 1, 2 are covered with wire mesh, which covers at least the connection between the risers 3 and the first connector 4 or the second connector 5, thereby preventing cracking of the wall. The riser 3 at one end of the first wall panel 1 is connected to the riser 3 at the corresponding location on the second wall panel 2 (where it connects to the first wall panel 1). A first connector 4 is provided on the side of the riser 3 at the end of the first wall panel 1, near the second wall panel 2. The side of the first connector 4 facing away from the riser 3 has a first connecting groove. A second connector 5 is provided on the side of the riser 3 at the corresponding position of the second wall panel 2, near the first wall panel 1. The side of the second connector 5 facing away from the riser 3 has a second connecting groove. During implementation, the side of the first connector 4 of the first wall panel 1 facing away from the riser 3 is flush with the end face of the first wall panel 1, while the side of the second connector 5 of the second wall panel 2 facing away from the riser 3 is flush with the side face of the second wall panel 2, facilitating subsequent grouting. The first connecting groove of the first connector 4 and the second connecting groove of the second connector 5 are positioned opposite each other, with a third connector 6 located between them. Grouting material (high-strength grouting material, a mature existing technology and product) is filled in the two connected risers 3, the first connecting groove, and the second connecting groove. During implementation, the gap between the first wall panel 1 and the second wall panel 2 is also filled with grouting material, and sealing strips are respectively provided between the first wall panel 1 and the second wall panel 2 near the edges of both sides of the first wall panel 1.

[0030] During implementation, the first, second, and third connectors 4, 5, and 6 are all positioned along the length of the riser 3, and their lengths are consistent with that of the riser 3. This further enhances the stability and reliability of the wall panel connection. During implementation, the first and second connectors 4, 5 share the same structure and a U-shaped cross-section. The base plates of the first and second connectors 4, 5, are connected to the corresponding riser 3 via fourth connectors. During fabrication, the fourth connectors utilize self-tapping screws for faster assembly. The free sides of the side plates of the first and second connectors 4, 5 are bent and extended toward each other to form a force-transmitting section. Two third connectors 6 are provided, each with a C-shaped cross-section. Each third connector 6 is positioned outside the force-transmitting section on the same side of the first and second connectors 4, 5. During fabrication, through-holes are provided between the riser 3 and the first connector 4, as well as between the riser 3 and the second connector 5. These holes allow for communication between the riser 3 and the first connector 4, and between the riser 3 and the second connector 5, respectively. This facilitates the flow of high-strength grout and improves assembly efficiency.

[0031] This solution connects the first connector 4 and the second connector 5 to the vertical pipe 3 for connecting the first wall panel 1 and the second wall panel 2, respectively, and then prefabricates the wall panels. This allows for rapid prefabrication of wall panels with connection structures, resulting in higher production efficiency. After the wall panels are assembled, a third connector 6 is set between the first connector 4 and the second connector 5, and then high-strength grouting material is poured into the vertical pipe 3, the first connection groove, and the second connection groove. In this way, the first connector 4 and the second connector 5 are directly connected through the third connector 6, or the third connector 6 is connected to the first connector 4 and the second connector 5 after being grouted with high-strength grouting material. This allows for a faster formation of a better tie structure with higher rigidity and strength. At the same time, pouring high-strength grouting material into the vertical pipe 3 can also improve the load-bearing, tensile, and shear resistance of the connection area, thereby improving the reliability and stability of the wall after assembly.

[0032] Example 2, see Figure 2 , different from Example 1, the two side plates of the first connecting member 4 and the second connecting member 5 are inclined in opposite directions, so that the first connecting groove and the second connecting groove are both trapezoidal; the fourth connecting member is a pin, a pin shaft or a self-tapping screw, and a part of the fourth connecting member is located in the riser 3, and the other part is located in the first connecting groove and the second connecting groove respectively.

[0033] Example 3, see Figure 3 , different from Example 1, the force transmission sections of the first connecting member 4 and the second connecting member 5 are respectively inclined toward the riser 3 connected thereto, and the two sides of the third connecting member 6 are correspondingly inclined toward opposite directions, so that the cross-section of the third connecting member 6 is wedge-shaped; and the two sides of the third connecting member 6 extend to the inside of the force transmission section.

[0034] Example 4, see Figure 4 , which is different from Example 3, the free side of the force transmission section is bent and extended toward the vertical pipe 3 connected thereto, and correspondingly, the two sides of the third connecting member 6 are bent and extended toward opposite directions.

[0035] Example 5, see Figure 5 Unlike Example 1, the third connector 6 has an H-shaped cross-section. Its two flanges are located within the first and second connecting grooves, respectively, with their edges extending to offset the force transmission section. The third connector 6 is constructed of thin-walled H-shaped steel, or a combination of channel steel connecting two base plates. When using thin-walled H-shaped steel, the edges of the two flanges are curved in opposite directions, forming a curled edge structure that further enhances the tensile strength.

[0036] Example 6, see Figure 6 , different from Example 4, the first connecting member 4 and the second connecting member 5 have the same structure, both comprising two connecting plates, which are fixedly connected to the riser 3 via a fourth connecting member, and a first connecting groove or a second connecting groove is formed between the two connecting plates and one side of the riser 3. The fourth connecting member also uses self-tapping screws. The edges of the two connecting plates on one side away from the riser 3 are bent in opposite directions and extended to form a force transmission section. There are two third connecting members 6, each having a C-shaped cross-section. The two third connecting members 6 are respectively sleeved on the outside of the force transmission section on the same side of the first connecting member 4 and the second connecting member 5. Both connecting plates are flat plates and are fixedly connected to opposite sides of the riser 3 via self-tapping screws.

[0037] Example 7, see Figure 7 , which is different from Example 6, the connecting plates are L-shaped, and one side plate of the two connecting plates is connected to the same side of the riser 3 by self-tapping screws.

[0038] Example 8, see Figure 8 Unlike Example 1, the first and second connectors 4, 5 have the same structure and are both U-shaped in cross-section. A side plate of each of the first and second connectors 4, 5 is connected to a corresponding riser 3. The first connector 4 is located on one side of the riser 3, while the second connector 5 is located on the other side. The notches of the first and second connectors 4, 5 have an intersecting portion. A steel bar 7 is vertically disposed within the intersecting portion of the first and second connectors 4, 5.

[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit the technical solution. Ordinary technicians in this field should understand that those modifications or equivalent replacements of the technical solution of the present invention that do not depart from the purpose and scope of the technical solution of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A wall panel connection structure for a prefabricated building, comprising a first prefabricated wall panel and a second prefabricated wall panel, wherein one end of the first wall panel is connected to one end or one side of the second wall panel; characterized in that: The first wall panel and the second wall panel both include a foam concrete wall body, in which a plurality of risers are spaced apart along the length direction thereof, and the riser at one end of the first wall panel is connected to the riser at the corresponding position of the second wall panel; wherein a first connecting member is provided on the side of the riser at the end of the first wall panel close to the second wall panel, and a first connecting groove is provided on the side of the first connecting member facing away from the riser; a second connecting member is provided on the side of the riser at the position of the second wall panel corresponding to the first wall panel close to the first wall panel, and a second connecting groove is provided on the side of the second connecting member facing away from the riser; the first connecting groove of the first connecting member and the second connecting groove of the second connecting member are arranged opposite to each other, and a third connecting member is provided between the first connecting groove and the second connecting groove; grouting material is filled in the two connected risers, the first connecting groove and the second connecting groove.

2. The wall panel connection structure of a prefabricated and assembled building according to claim 1, characterized in that: Both sides of the risers in the first and second wall panels are covered with wire mesh.

3. The wall panel connection structure of a prefabricated and assembled building according to claim 1, characterized in that: The first connecting member, the second connecting member and the third connecting member are all arranged along the length direction of the standpipe, and their lengths are consistent with the length of the standpipe.

4. The wall panel connection structure of a prefabricated and assembled building according to claim 1, characterized in that: The first connecting member and the second connecting member have the same structure and are both U-shaped in cross-section. The bottom plates of the first connecting member and the second connecting member are respectively connected to the corresponding vertical pipes through the fourth connecting member; the free sides of the two side plates of the first connecting member and the second connecting member are bent in opposite directions and extended to form a force transmission section.

5. The wall panel connection structure of a prefabricated and assembled building according to claim 4, characterized in that: There are two third connecting members, each of which has a C-shaped cross section. The two third connecting members are respectively sleeved on the outside of the force transmission section on the same side of the first connecting member and the second connecting member.

6. The wall panel connection structure of a prefabricated and assembled building according to claim 5, characterized in that: The free side of the force transmission section is bent and extended toward the vertical pipe, and correspondingly, the two sides of the third connecting member are bent and extended toward opposite directions.

7. The wall panel connection structure of a prefabricated building according to claim 4, characterized in that: The cross section of the third connecting member is H-shaped, and the two flange plates of the third connecting member are respectively located in the first connecting groove and the second connecting groove, and the two side edges of the flange plates extend to be staggered with the force transmission section.

8. The wall panel connection structure of a prefabricated building according to claim 1, characterized in that: The first and second connecting members have the same structure and both include two connecting plates, which are fixedly connected to the riser via a fourth connecting member, and a first connecting groove or a second connecting groove is formed between the two connecting plates and one side of the riser; the edges of the two connecting plates on one side away from the riser are bent in opposite directions and extended to form a force transmission section; there are two third connecting members, each having a C-shaped cross-section, and the two third connecting members are respectively sleeved on the outside of the force transmission section on the same side of the first and second connecting members.

9. The wall panel connection structure of a prefabricated building according to claim 1, characterized in that: The first connecting member and the second connecting member have the same structure and are both U-shaped in cross-section, wherein one side plate of the first connecting member and the second connecting member are respectively connected to the corresponding vertical pipe, the first connecting member is located on one side of the vertical pipe, and the second connecting member is located on the other side of the vertical pipe, and the notches of the first connecting member and the second connecting member have staggered parts; steel bars are vertically arranged in the staggered parts of the first connecting member and the second connecting member.

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