CN207714507U - The assembled architecture component system of a set of novel dismountable - Google Patents

Abstract

The utility model discloses the assembled architecture component system of a set of novel dismountable, which is characterized in that including precast column unit, precast beam unit, precast floor unit, prefabricated panel component；The precast column unit, precast beam unit, precast floor unit, prefabricated panel component are inlayed and are detachably connected by the card slot being arranged on component or raised reinforcing bar；The precast column unit includes prefabricated corner post component, prefabricated side column component, prefabricated central cylinder member；The precast beam unit includes prefabricated ground beam and prefabricated interlayer beam；The precast floor unit includes board member and precast floor slab side plate component among precast floor slab；The prefabricated panel component includes left side plate, intermediate plate and right side plate；The utility model building element system greatly reduces construction cost, improves construction efficiency, makes scene without concreting wet construction, realizes the assembly after entirely or partially whole promotion, improves assembling speed, shorten the construction period；Also it is conducive to component removal and secondary use.

Description

A new set of detachable prefabricated building component system

technical field

The utility model relates to the technical field of building engineering construction and building assembled components, in particular to a novel detachable assembled building component system.

Background technique

The prefabricated concrete structure is a concrete structure formed by design, prefabrication, assembly and connection with prefabricated concrete components as the main components. In order to meet the rigidity requirements of the overall structure of the building, the joint part of the existing prefabricated concrete structure is formed by cast-in-place. The prefabricated concrete structure building adapts to the trend of national housing industrialization development.

As early as after World War II, European and American countries represented by the United States took the lead in proposing and implementing the road to industrialization of housing. Residential buildings are required to have residential functions and performances such as high efficiency, energy saving, environmental protection, and low cost. At present, in the field of international construction, the operation forms of prefabricated concrete structure construction projects are various. Mainland China is at the stage where development, research and construction coexist. People's pursuit of housing quality has gradually shifted from the basic living function to the comfort of the external environment and the quality of internal living performance. This is the inevitable law of development that China's housing industrialization follows.

With the development of housing industrialization in my country and the requirements for energy saving, emission reduction, quality and safety, and ecological environmental protection, precast concrete components have brought opportunities for development. Prefabricated housing construction is characterized by large scale and high demand for residential construction projects. Prefabricated structure housing can realize large-scale, fast and standardized production and construction, reduce construction costs, and meet the people's demand for housing.

The prefabricated components of buildings appeared in our country in the last century. Such as hollow floor slabs, prefabricated stairs, lintels, etc., but due to factors such as weak technical foundation and unsound industrial production links, they have not been well developed and utilized. With the advancement of manufacturing technology and design methods, prefabricated or prefabricated integrated construction methods have become the current development trend of prefabricated buildings.

At present, the domestic building structure assembly system mainly includes: assembly integral frame structure, assembly integral shear wall structure, assembly development building integral frame-shear wall structure, integral prestressed assembly plate column structure, assembly large slab The structure, in which the walls, floors and roofs are all large plates.

The existing prefabricated design and construction specifications use beams, slabs, and shear walls to be assembled in blocks, and concrete is poured and tamped at the joints, and the upper layer of structure is constructed after maintenance. Although this method improves the assembly efficiency, it has limited effect on speeding up the construction progress in the concrete pouring and maintenance process of the nodes. For this reason, the patent CN106149868A invented a prefabricated building structure system and its assembly method. The method consists of prefabrication of the beam-slab floor, on-site positioning, splicing, overall synchronous lifting or partition lifting, and fast node installation. The assembly construction method overcomes the limitation of the low assembly rate brought about by the assembly of floors and slabs in the existing assembly structure, uses the connection nodes to quickly connect and assemble, a small amount of concrete is poured and tamped at local nodes, and continuous construction without maintenance greatly shortens the construction time. Construction period. However, this method still has concrete wet operation, which is not conducive to the secondary disassembly and assembly of components.

With the construction of new rural areas and new towns in the country, especially the new rural areas, there are restrictions on the height and number of floors of residential buildings, generally no more than three floors. Therefore, it is suitable for construction with standardized prefabricated components. At the same time, the construction of rural houses is uncertain, and detachable assembled components are used to build houses to facilitate the secondary use of concrete components. In addition, in the field of vocational education of construction technology, such detachable prefabricated components are also needed, and such detachable components are used to complete the training of construction talents for prefabricated buildings.

To sum up, the existing prefabricated or prefabricated monolithic building structures have a large number of cast-in-place or superimposed construction procedures, resulting in low assembly rate, large amount of wet work for on-site concrete pouring, and limited shortening of the construction period. Therefore, the present invention improves the structure design and assembly method of prefabricated components such as columns, beams, slabs, walls, etc., so that there is no wet operation for concrete pouring on site, and the assembly after the whole or part of the whole is lifted is realized, the assembly speed is improved, and the construction period is shortened. ; At the same time, it is also conducive to component disassembly and secondary utilization.

Utility model content

The purpose of this utility model is to solve the deficiencies in the background technology. The purpose of this utility model patent is to provide a new set of detachable assembly building component system, which greatly reduces construction costs, improves construction efficiency, and makes there is no wet operation for concrete pouring on site. , realize the assembly after the whole or part of the whole is lifted, improve the assembly speed and shorten the construction period; at the same time, it is also conducive to the disassembly and secondary utilization of components.

In order to achieve the above object, the technical scheme adopted by the utility model is as follows:

A new set of detachable prefabricated building component system is characterized in that:

The prefabricated building component system includes prefabricated column components, prefabricated beam components, prefabricated floor components, and prefabricated wall panel components; the prefabricated column components, prefabricated beam components, prefabricated floor components, and prefabricated wall panel components Grooved or raised finish-rolled rebar inlaid detachable connection;

The prefabricated column components include prefabricated corner column components, prefabricated side column components, and prefabricated center column components; the prefabricated corner column components are suitable for installation at the corners of prefabricated buildings. Orientation; the prefabricated side column component is suitable for installation in the central part that needs to be supported between the corners of two prefabricated buildings, that is, the orientation of three walls that need to be built from a column in the building system; the prefabricated central column component is suitable for For installation in the building system, it is necessary to build the orientation of four walls from a column;

The prefabricated beam member includes a prefabricated foundation beam member and a prefabricated interlayer beam member; the prefabricated foundation beam member is used as a beam used for ground foundation support, and the prefabricated interlayer beam member is used for supporting between layers on the second floor the beam;

The prefabricated floor slab components include prefabricated floor slab middle slab components and prefabricated floor slab side slab components;

The prefabricated wall panel components include a left panel of a prefabricated wall panel, a middle panel of a prefabricated wall panel and a right panel of a prefabricated wall panel.

Preferably, the prefabricated corner column components, prefabricated side column components, and prefabricated center column components are divided into main columns and beam body support ends, and the main column body and beam body support ends are integrally cast, and the The main structure of the main column and the beam support end is a reinforced concrete column and passes through the main column and the beam support end; the concrete column of the main column and the beam support end A number of longitudinal finish-rolled threaded steel bars are pre-embedded; wallboard slots are reserved on the contact surfaces of the main column and beam body support ends and the prefabricated wallboard components.

Preferably, among the pre-embedded finish-rolled rebars in the main column, the lengths of the outermost finish-rolled rebars passing through the upper part of the main column are different. The length is more than 2 times the length of the finish-rolled threaded steel bar at other parts of the four sides of the main cylinder. Same length.

The purpose of setting up different lengths of finish-rolled rebars is to use the different lengths to make the verticality of the column and the column more stable, and the force is different, so the stability is stronger; the purpose of the first and second lengths of the finish-rolled rebars is to match the prefabrication It is more convenient to process and maintain uniformity when matching reserved holes.

Preferably, the lower end of the contact surface between the main column and the prefabricated wall panel member is reserved with a number of holes for fastening the lower column and the finish-rolled threaded steel bar, the end of the beam body support is stepped, and the stepped The upper surface of the high step at the end of the beam body support is provided with a wallboard slot, and the upper surface of the lower step at the end of the stepped beam body support is pre-embedded with a finish-rolled threaded steel bar 3, and the finished-rolled threaded steel bar passes through the upper surface of the low step surface and ensure that the length of the piercing part is consistent.

Preferably, there are two beam body support ends of the prefabricated corner column component, three beam body support ends of the prefabricated side column component, and the beam body support ends of the prefabricated center column component are respectively for four.

Preferably, the main structure 2 of the prefabricated foundation beam member and the prefabricated interstory beam member is T-shaped, the main structure 2 is reinforced concrete, and the main structure 2 is provided with a number of lateral supporting steel bars. The two ends of the upper surface of the second are provided with holes 2 that are embedded in the beam body support end of the prefabricated column member, and the upper surface of the main structure 2 is also provided with a hole 2 on the upper surface except for the area of the hole 2. Longitudinal finish-rolled threaded steel bars, used to cooperate with the prefabricated wall panel components;

The bottom of the prefabricated interstory beam member is provided with a reserved groove 1, which is used to cooperate with the prefabricated wall panel member; the prefabricated foundation beam member and the upper surface of the prefabricated interstory beam member have reserved groove 2, It is used for mating connection with the prefabricated wall panel components.

Preferably, there are two prefabricated floor slab side slab components, which are respectively placed in the component system to be used as floor slab side slabs and set opposite to each other. The prefabricated floor slab middle slab component is a square body and is connected to the end of the beam body support The two sides of the contact part are provided with steps 1 and 2 in opposite directions. The surface of the steps 1 and 2 is provided with a hole 3 that is connected with the pre-embedded finish-rolled threaded steel bar at the end of the beam support. The prefabricated floor slab The outer sides of the middle plate member perpendicular to the direction of step 1 and step 2 are provided with support reinforcement anchorage hole 4, and the two prefabricated floor slab side plate members are convex structures; the protruding parts of the convex structures are provided with The steps are used for lamination and connection with the prefabricated floor middle plate components, and anchorage holes 5 for the support reinforcement are also arranged at the periphery of the convex structure near the edges.

Preferably, the opposite sides of the left panel of the prefabricated wall panel and the right panel of the prefabricated wall panel are respectively provided with grooves 3 and protrusions 3; The connection sides of the boards are respectively provided with grooves 4 and protrusions 4, which are used to cooperate with the protrusions 3 and grooves 3 on the left side of the prefabricated wallboard and the right side of the prefabricated wallboard to connect and fix.

Regarding the relevant description of the present utility model, the prefabricated building component system of the present utility model is formed into a stable modern fast house building after the card slots or grooves or convex parts or holes of each component cooperate and connect with each other. In the actual use process, high-rise buildings use Relatively few. With the construction of new rural areas and new towns in the country, especially the new rural areas, there are restrictions on the building height and the number of floors of buildings, generally no more than three floors. Therefore, it is suitable to use standardized prefabricated components for construction; at the same time, rural residential construction is uncertain, and detachable prefabricated components are used to build houses to facilitate the secondary use of concrete components. In addition, in the field of vocational education of construction technology, such detachable prefabricated components are also needed, and such detachable components are used to complete the training of construction talents for prefabricated buildings.

The utility model has the following beneficial effects due to the adoption of the above-mentioned technical scheme:

1. The prefabricated building component system of the present utility model includes prefabricated column components, prefabricated beam components, prefabricated floor components, and prefabricated wall panel components. All components cooperate with each other in the form of reserved corresponding connectors to form a stable building system. It can well ensure the stability between the upper structure and components, shorten the construction period, facilitate disassembly and assembly, and can be used for secondary use.

2. Adopting the prefabricated building component system of the utility model, there is no on-site wet construction, which greatly improves the assembly efficiency and speed.

3. Adopting the prefabricated building component system of the present utility model, the pre-embedded finish-rolled threaded steel bars of the main column are set with different lengths of finished-rolled threaded steel bars to make the verticality of the column and the column more vertical after the use of different lengths. Stable, different forces, stronger stability; the purpose of the first and second lengths of the finish-rolled threaded steel bars is to match the prefabricated reserved holes more conveniently for processing and maintain uniformity.

4. With the prefabricated building component system of the present utility model, the connection between ordinary building assemblies adopts the planar connection between the plates, and rainwater may enter from the gap, while the concave and convex parts set in each part of the new system are mutually connected. The matching form is beneficial to protect the components after the building system is assembled. In addition, it effectively prevents rainwater and wind from entering the interior.

Description of drawings

Fig. 1 is the structural schematic diagram of the prefabricated corner column component of the assembly building component system of the present invention;

Fig. 2 is the structural schematic diagram of the prefabricated side column component of the prefabricated building component system of the present invention;

Fig. 3 is the structural schematic diagram of the prefabricated central column component of the prefabricated building component system of the present invention;

Fig. 4 is the structural representation of the prefabricated interstory beam component of the prefabricated building component system of the present invention;

Fig. 5 is a schematic diagram of the split structure of the prefabricated floor middle plate member and two prefabricated floor side panels of the prefabricated building component system of the present invention;

Fig. 6 is a schematic diagram of the split structure of the prefabricated wall panel left panel, the prefabricated wall panel middle panel and the prefabricated wall panel right panel of the prefabricated building component system of the present invention;

In the accompanying drawings, a prefabricated column member 10, a main column body 11, a beam support end 12, a hole 111, a wall panel slot 112, a finish-rolled threaded steel bar 113, a finished-rolled threaded steel bar 2 114, and a prefabricated beam structure 20 , Groove 1 21, Groove 2 22, Hole 2 23, Finished rolled threaded steel bar 4 24, prefabricated wall panel member 30, Groove 3 31, Protrusion 4 31-0, Groove 4 32, Protrusion 3 32- 0, prefabricated floor components 40, step one 43-0, step two 44, hole four 41, convex structure (42,45), hole three 46, hole five 47.

Detailed ways

In order to make the purpose, technical solutions and advantages of the utility model clearer, the utility model will be further described in detail below with reference to the drawings and preferred embodiments. However, it should be noted that many details listed in the specification are only for readers to have a thorough understanding of one or more aspects of the present invention, and these aspects of the present invention can be realized even without these specific details.

Example 1

As shown in Figures 1-6, a new set of detachable prefabricated building component system, the prefabricated building component system includes prefabricated column components 10, prefabricated beam components 20, prefabricated floor components 40, prefabricated wall panel components 30; The prefabricated column components 10, prefabricated beam components 20, prefabricated floor slab components 40, and prefabricated wall panel components 30 are detachably connected by means of slots or protruding reinforcement inlaid on the components;

As shown in Figures 1-3, the prefabricated column components 10 include prefabricated corner column components, prefabricated side column components, and prefabricated center column components; Build the position where two walls are drawn from one column; the prefabricated side column components are suitable for installation in the central part that needs to be supported between the corners of two prefabricated buildings, that is, in the building system, three walls need to be drawn out from one column The orientation; the prefabricated central column component is suitable for installation in the building system and needs to build the orientation of four walls drawn from one column;

As shown in FIG. 4 , the prefabricated beam member 20 includes a prefabricated foundation beam member and a prefabricated interlayer beam member; the prefabricated foundation beam member is used for the beam used for ground foundation support, and the prefabricated interlayer beam member is used for the second floor. Beams supporting the layers;

As shown in FIG. 5 , the prefabricated floor components 40 include prefabricated floor middle plate components and prefabricated floor side plate components;

As shown in FIG. 6 , the prefabricated wall panel component 30 includes a left panel of a prefabricated wall panel, a middle panel of a prefabricated wall panel and a right panel of a prefabricated wall panel.

As shown in Figures 1-3, the prefabricated corner column components, prefabricated side column components, and prefabricated center column components are divided into main column body 11 and beam body support end 12, and the main column body 11 and beam body support The end 12 is cast in one piece, the main structure of the main column 11 and the beam support end 12 is a reinforced concrete column and passes through the main column 11 and the beam support end 12; Several longitudinal finish-rolled threaded steel bars are pre-embedded in the concrete column of the main column 11 and the end of the beam support 12; the main column 11 and the end of the beam support 12 are in contact with the prefabricated wall panel member 30 A wallboard slot 112 is reserved on the side.

As shown in FIGS. 1-3 , among the pre-embedded finish-rolled rebars of the main column 11, the lengths of the outermost finish-rolled and finish-rolled rebars passing through the upper part of the main column 11 are different, and are located in the main column 11. The length of several finished-rolled threaded steel bars 113 in the middle of the four sides is more than twice the length of the finished-rolled threaded steel bars 114 located on other parts of the four sides of the main column 11, and the finished-rolled threaded steel bars 113 pass through the main column 11 The lengths are consistent, and the length of the finish-rolled thread finish-rolled rebar 2 114 passing through the main column 11 is consistent.

The purpose of setting different lengths of finished-rolled rebar is to use the different lengths to make the verticality of the column and the column more stable, and the force is different, so the stability is stronger; The purpose of consistency is to facilitate processing and maintain uniformity when the reserved holes matched with prefabrication.

As shown in Figures 1-3, the lower end of the contact surface between the main column body 11 and the prefabricated wall panel member 30 is reserved with a number of holes 111 for fastening the lower column finish-rolled threaded steel bars, and the beam body support The end 12 is stepped, and the upper surface of the high step of the stepped beam support end 12 is provided with a wallboard slot 112, and the lower step upper surface of the stepped beam support end 12 is pre-embedded with a finishing thread Steel bar 3 121, the finish-rolled thread finish-rolled thread steel bar pierces the upper surface of the low step and ensures that the length of the pierced part is consistent.

As shown in Figures 1-3, there are two beam body support ends 12 of the prefabricated corner column component, three beam body support ends 12 of the prefabricated side column component, and three beam body support ends 12 of the prefabricated center column component. There are four beam body support ends 12 respectively.

As shown in Figure 4, the main structure two of the prefabricated foundation beam member and the prefabricated interlayer beam member is T-shaped, the second main structure is finished rolled threaded reinforced concrete, and the second main structure is provided with a number of lateral support precision In addition to the rolled threaded steel bars, the two ends of the upper surface of the main structure two are provided with holes two 23 that are embedded with the beam body support end 12 of the prefabricated column member 10, and the upper surface of the main structure two is except for the hole two 23 The other upper surface outside the area is also provided with a longitudinal finish-rolled threaded steel bar 4 2424 passing through the upper surface, which is used to cooperate with the prefabricated wall panel member 30;

As shown in FIG. 4, the bottom of the prefabricated interstory beam member is provided with a reserved groove 21, which is used to cooperate with the prefabricated wall panel member 30; the upper surface of the prefabricated foundation beam member and the prefabricated interstory beam member There are two reserved grooves 22 for matching with the prefabricated wall panel components 30 .

As shown in Fig. 5, there are two prefabricated floor side slab components, which are respectively placed in the component system and used as the side slabs of the floor slab, and are arranged oppositely. The two sides of the contact portion of the seat end 12 are provided with a step 1 43-0 and a step 2 44 in opposite directions. Hole 3 46 that is matched and connected with threaded steel bars, and the outer sides of the two sides perpendicular to the step direction of the prefabricated floor middle plate member are provided with support steel bar anchor hole 4 41, and the two prefabricated floor slab side plate members are convex structures (42, 45); Steps are provided on the opposite side of the protruding part of the convex structure (42, 45) for lamination and connection with the middle plate member of the prefabricated floor slab, and support steel bars are also provided at the edges of the convex structure Anchor holes V:47.

As shown in Fig. 6, the opposite sides of the left panel of the prefabricated wall panel and the right panel of the prefabricated wall panel are respectively provided with grooves 3 31 and protrusions 3 32-0; The connecting sides of the left panel and the right panel of the prefabricated wall panel are respectively provided with grooves 4 32 and protrusions 4 31-0, which are used for the protrusions 3 32-0 and concaves arranged on the left panel of the prefabricated wall panel and the right panel of the prefabricated wall panel. Groove three 31 are matched and connected and fixed.

In this example, both the prefabricated floor slab components and the prefabricated wall panel components are made of lightweight concrete.

The above is only a preferred embodiment of the utility model, it should be pointed out that for those of ordinary skill in the art, without departing from the principle of the utility model, some improvements and modifications can also be made. These improvements and modifications It should also be regarded as the protection scope of the present utility model.

Claims (8)

1. A new set of detachable prefabricated building component system, characterized in that: The prefabricated building component system includes prefabricated column components, prefabricated beam components, prefabricated floor components, and prefabricated wall panel components; the prefabricated column components, prefabricated beam components, prefabricated floor components, and prefabricated wall panel components Grooved or raised rebar mosaic detachable connection; The prefabricated column components include prefabricated corner column components, prefabricated side column components, and prefabricated center column components; the prefabricated corner column components are suitable for installation at the corners of prefabricated buildings. Orientation; the prefabricated side column component is suitable for installation in the central part that needs to be supported between the corners of two prefabricated buildings, that is, the orientation of three walls that need to be built from a column in the building system; the prefabricated central column component is suitable for For installation in the building system, it is necessary to build the orientation of four walls from a column; The prefabricated beam member includes a prefabricated foundation beam member and a prefabricated interlayer beam member; the prefabricated foundation beam member is used as a beam used for ground foundation support, and the prefabricated interlayer beam member is used for supporting between layers on the second floor the beam; The prefabricated floor slab components include prefabricated floor slab middle slab components and prefabricated floor slab side slab components; The prefabricated wall panel components include a left panel of a prefabricated wall panel, a middle panel of a prefabricated wall panel and a right panel of a prefabricated wall panel. 2. The prefabricated building component system according to claim 1, characterized in that: The prefabricated corner column components, prefabricated side column components, and prefabricated center column components are divided into a main column body and a beam body support end, and the main column body and the beam body support end are integrally cast, and the main column The main structure of the end of the body and the beam support is a reinforced concrete column and passes through the main column and the end of the beam support; the concrete column at the end of the main column and the beam support is embedded with A number of longitudinal finish-rolled threaded steel bars; wallboard slots are reserved on the contact surfaces of the main column and beam body support ends and the prefabricated wallboard components. 3. The prefabricated building component system according to claim 2, characterized in that: among the pre-embedded finish-rolled rebars in the main column, the lengths of the outermost finished-rolled rebars passing through the upper part of the main column are different, The first length of several finished-rolled threaded steel bars located in the middle of the four sides of the main column is more than twice the length of the second length of the finished-rolled threaded steel bars located at other parts of the four sides of the main column. The lengths are consistent, and the lengths of the finish-rolled threaded steel bars passing through the main column are consistent. 4. The prefabricated building component system according to claim 2, characterized in that: the lower end of the contact surface between the main column and the prefabricated wall panel component is reserved with a number of holes for fastening the lower column and finish-rolled threaded steel bar, The end of the beam body support is stepped, the upper surface of the high step of the step-shaped beam support end is provided with wallboard slots, and the upper surface of the lower step of the step-shaped beam support end is pre-embedded. Rolled threaded steel bar 3. The finished rolled threaded steel bar penetrates the upper surface of the low step and ensures that the length of the pierced part is consistent. 5. The prefabricated building component system according to claim 2, characterized in that: there are two beam body support ends of the prefabricated corner column components, and three beam body support ends of the prefabricated side column components There are four beam body support ends of the prefabricated central column member respectively. 6. The prefabricated building component system according to any one of claims 2-5, characterized in that: the main structure two of the prefabricated foundation beam component and the prefabricated interstory beam component is T-shaped, and the main structure two It is reinforced concrete, and the main structure 2 is provided with a number of horizontal supporting fine-rolled threaded steel bars, and the two ends of the upper surface of the main structure 2 are provided with holes 2 that are embedded in the end of the beam body support of the prefabricated column member. , the upper surface of the main structure 2 is provided with a longitudinal finish-rolled threaded steel bar 4 passing through the upper surface except for the area of the hole 2, and is used to cooperate with the prefabricated wall panel member; The bottom of the prefabricated interstory beam member is provided with a reserved groove 1, which is used to cooperate with the prefabricated wall panel member; the prefabricated foundation beam member and the upper surface of the prefabricated interstory beam member have reserved groove 2, It is used for mating connection with the prefabricated wall panel components. 7. The prefabricated building component system according to any one of claims 2-5, characterized in that: there are two prefabricated floor side panel components, which are respectively placed in the component system and used as side panels of the floor slab Relatively arranged, the prefabricated floor middle plate member is a square body, and steps in opposite directions are provided on both sides of the contact part of the connecting beam body support end, and the surface of the step is provided with a finish-rolled surface embedded with the end of the beam body support. Hole 3 that is matched and connected with threaded steel bars, the outer sides of the two sides perpendicular to the step direction of the prefabricated floor middle plate member are provided with support steel bar anchor hole 4, and the two prefabricated floor slab side plate members are convex-shaped structures; the convex-shaped Steps are provided on the opposite side of the protruding part of the structure for lamination and connection with the middle plate member of the prefabricated floor slab, and anchorage holes 5 for the support reinforcement are also provided at the edges of the protruding structure. 8. The prefabricated building component system according to any one of claims 2-5, characterized in that: the opposite sides of the left panel of the prefabricated wall panel and the right panel of the prefabricated wall panel are respectively provided with grooves 3 and protrusions 3 The middle panel of the prefabricated wall panel is provided with grooves 4 and protrusions 4 opposite to the connecting sides of the left panel of the prefabricated wall panel and the right panel of the prefabricated wall panel, for connecting with the left panel of the prefabricated wall panel and the right panel of the prefabricated wall panel The set three-phase protruding head and the three-phase groove are connected and fixed in cooperation.