Prefabricated lightweight outer wall panel with three-dimensional adjustable dry connection node and assembly method

Abstract

The application discloses a prefabricated light outer wall plate with a three-dimensional adjustable dry connection node and an assembling method, and relates to the technical field of building structures. The light outer wall plate comprises a wall plate, a lower connection node and an upper connection node used for connecting the wall plate with a structure; the lower connection node comprises a connecting piece, lower node bolts used for connecting the wall plate with the connecting piece, and fastening bolts used for connecting the structure with the connecting piece; the upper connection node comprises a connecting plate and a swing piece; the connecting plate is connected with the structure through the fastening bolts; the swing piece is located between the wall plate and the connecting plate and is connected with the connecting plate through connecting bolts; a second long circular hole with a long axis arranged along the length direction is arranged on the swing piece; a steel sleeve is arranged in the second long circular hole; the wall plate is connected with the swing piece through upper node bolts; the upper node bolts pass through the steel sleeve and are fastened through first nuts arranged on both sides of the steel sleeve. The application realizes fast installation through modular prefabricated components, has three-dimensional adjustable and large deformation coordination capabilities, and is suitable for the connection of an assembled steel structure outer hanging wall plate.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of prefabricated buildings, and in particular to a prefabricated light outer wall panel with a three-dimensionally adjustable dry connection node and an assembly method. BACKGROUND

[0002] In prefabricated buildings, the reliability of the connection node of the prefabricated outer wall panel as a non-load-bearing enclosure structure directly affects the construction efficiency and the building quality.

[0003] The existing Chinese utility model patent with the application number 202020670038.0 discloses a wall panel connection assembly and wall panel

[0004] The installation structure. The wall panel connection assembly comprises a supporting connection node, which comprises: a supporting seat, the side surface of the supporting seat is provided with a first installation position, and the supporting seat is connected to the main body structure to transmit the load to the main body structure; a load-bearing component provided on the upper part of the supporting seat, the load-bearing component is used for supporting the wall panel; a first anchoring component comprising a first connecting end and a first anchoring end, the first anchoring end is anchored to the back surface of the wall panel, and the first connecting end is arranged in the first installation position and is gap-fitted with the first installation position. The structure of the supporting connection node of the embodiment is reliable in stress transmission and direct in force transmission, the main body structure has a deformation degree of freedom in strong vibration, and the stress performance of the externally hung wall panel is improved; the supporting connection node is not affected by the deformation of the main body structure, and can effectively release the load pressure at the node when the wall panel translates relative to the main body structure.

[0005] The existing Chinese utility model patent with the application number 202021613511.8 discloses a three-dimensionally adjustable prefabricated wall panel dry connection node, which is used for connecting a first prefabricated wall panel, a second prefabricated wall panel and a support beam, a node lower connection assembly is installed between the bottom end of the first prefabricated wall panel and the top end of the support beam, a support assembly is installed between the bottom end of the first prefabricated wall panel and the top end of the support beam, and a node upper connection assembly is installed between the top end of the second prefabricated wall panel and the top end of the support beam; the connection node is three-dimensionally adjustable, has good tolerance and is convenient to install; the deformation of the wall panel and the connection node is coordinated with the deformation of the main body structure; the application function of the externally hung wall panel system is improved, and the system is safe and reliable, fireproof, durable and beautiful; the system is convenient to install, light in weight and high in cost performance.

[0006] Although the above-mentioned nodes can realize three-dimensional adjustment of the wall panel and ensure the installation accuracy of the wall panel, the connection nodes cannot adapt to large deformation of the main body structure. SUMMARY

[0007] In view of the above problems, the present application provides a prefabricated light outer wall panel with a three-dimensionally adjustable dry connection node and an assembly method.

[0008] To solve the above technical problems, the present application adopts the following technical solutions:

[0009] The prefabricated lightweight outer wall plate with three-dimensional adjustable dry-type connecting nodes comprises a wall plate, a lower connecting node and an upper connecting node for connecting the wall plate with a structure.

[0010] The lower connecting node comprises a connecting piece, a lower node bolt connecting the wall plate with the connecting piece, and a fastening bolt connecting the structure with the connecting piece.

[0011] The upper connecting node comprises a connecting plate and a swing piece, the connecting plate is connected with the structure through a fastening bolt, the swing piece is located between the wall plate and the connecting plate and is connected with the connecting plate through a connecting bolt, a second long circular hole is arranged on the swing piece, a steel sleeve is arranged in the second long circular hole, the length of the steel sleeve is greater than the thickness of the swing piece, the wall plate is connected with the swing piece through an upper node bolt, the upper node bolt passes through the steel sleeve and is fastened through first nuts arranged on both sides of the steel sleeve.

[0012] The prefabricated lightweight outer wall plate with three-dimensional adjustable dry-type connecting nodes further comprises a first long circular hole with a long axis arranged in a horizontal direction arranged on the connecting plate, and the fastening bolt is arranged at the first long circular hole.

[0013] The prefabricated lightweight outer wall plate with three-dimensional adjustable dry-type connecting nodes further comprises a threaded hole formed in the side surface of the connecting plate, and the connecting bolt is screwed into the threaded hole to connect the connecting plate with the swing piece.

[0014] The prefabricated lightweight outer wall plate with three-dimensional adjustable dry-type connecting nodes further comprises a rotating sleeve fixedly arranged on the top surface of the swing piece, and the connecting bolt passes through the rotating sleeve and is connected with the connecting plate.

[0015] The prefabricated lightweight outer wall plate with three-dimensional adjustable dry-type connecting nodes further comprises a second nut for fastening the upper node bolt passing through the wall plate.

[0016] The prefabricated lightweight outer wall plate with three-dimensional adjustable dry-type connecting nodes further comprises a third long circular hole with a long axis arranged in a horizontal direction arranged on the connecting piece at the installation position of the lower node bolt, and a fourth long circular hole with a long axis arranged in the adjustment direction of the wall plate arranged on the connecting piece at the installation position of the fastening bolt.

[0017] The prefabricated lightweight outer wall plate with three-dimensional adjustable dry-type connecting nodes further comprises an adjusting bolt arranged on the connecting piece, the adjusting bolt is supported on the structure through the connecting piece and is used for fine adjustment of the installation height and flatness of the connecting piece.

[0018] The application has a prefabricated light outer wall plate with a three-dimensional adjustable dry connection node, further, the upper connection node and the lower connection node are provided with two respectively, which are close to the corner points of the wall plate, a steel sleeve is arranged on the lower node bolt of one of the lower connection nodes, the steel sleeve is arranged in the third long circular hole through which the lower node bolt passes, and the length of the steel sleeve is greater than the thickness of the connecting piece, and the lower node bolt is fastened with the connecting piece through the third nut located on both sides of the steel sleeve.

[0019] The application has a prefabricated light outer wall plate with a three-dimensional adjustable dry connection node, further, the wall plate comprises a light steel framework, a panel arranged on one side of the light steel framework, a steel wire mesh arranged on the other side of the light steel framework, and light concrete filled in the light steel framework, and an alkali-resistant mesh cloth and a polymer anti-cracking mortar protective layer are arranged on the outer side of the steel wire mesh on the side of the light steel framework without the panel.

[0020] The application is a method for assembling a prefabricated light outer wall plate with a three-dimensional adjustable dry connection node, comprising the following steps:

[0021] S1: after the wall plate is transported to the construction site, the lower node bolt and the upper node bolt are respectively fixed and installed on the wall plate;

[0022] S2: the connecting plate and the connecting piece are respectively preliminarily fixed through the fastening bolt;

[0023] S3: after the wall plate is hoisted and temporarily fixed, the steel sleeve is sleeved on the upper node bolt and preliminarily fixed through the first nut and the swing piece, the swing piece is connected with the connecting plate through the connecting bolt, and the lower node bolt is fixed with the connecting piece through the third nut;

[0024] S4: when there is an error in the plane or the verticality of the wall plate needs to be calibrated, the length of the connecting piece extending out of the plane is first adjusted for coarse adjustment, and then the first nut on the upper node bolt and the third nut on the lower node bolt are screwed in and out for fine adjustment, so as to adjust the installation error out of the plane;

[0025] S5: when there is an error in the plane, the position of the wall plate is adjusted through the third long circular hole arranged on the connecting piece, and the height of the wall plate is adjusted by rotating the adjusting bolt; meanwhile, the first long circular hole is arranged on the connecting plate, and the second long circular hole is arranged on the swing piece, so as to adapt to the adjustment of the wall plate;

[0026] S6: after the three-dimensional adjustment of the wall plate, the first nut and the third nut are respectively screwed and fixed.

[0027] Compared with the prior art, the application has the following beneficial effects:

[0028] The upper connecting node and the lower connecting node of the application can realize three-dimensional adjustment capability of the node in the case of deviation in the manufacturing and construction stage, and have self-adaptive deformation adjustment function in the stress process, especially in the case of large deformation of the main structure, the swing of the swing piece is used to adapt to the large deformation of the main structure, so as to avoid the damage of the wallboard, thereby improving the seismic performance of the external hanging wallboard node. In addition, the characteristics of full dry assembly make the installation and maintenance of the node more convenient, which can effectively improve the installation efficiency and reduce the construction cost.

[0029] The application will be further described below in combination with the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 It is an installation structure diagram of the application;

[0031] Figure 2 It is a wallboard structure diagram of the application;

[0032] Figure 3 It is an upper connecting node structure diagram of the application;

[0033] Figure 4 It is an explosion diagram of the bolt connection between the swing piece and the upper node of the application;

[0034] Figure 5 It is a structure diagram of the swing of the swing piece with the structure of the application;

[0035] Figure 6 It is an opening diagram of the connecting plate of the application;

[0036] Figure 7 It is a lower connecting node structure diagram of the application;

[0037] Figure 8 It is a connecting diagram of the lower connecting node and the wallboard of the application;

[0038] Figure 9 It is an explosion diagram of the lower connecting node of the application.

[0039] Reference signs:

[0040] 1, wallboard; 1.1, light steel skeleton; 1.2, panel; 1.3, steel mesh; 1.4, lightweight concrete; 1.5, alkali-resistant mesh cloth; 1.6, polymer anti-cracking mortar protective layer; 2, upper connecting node; 2.1, connecting plate; 2.2, swing piece; 2.3, fastening bolt; 2.4, first long circular hole; 2.5, connecting bolt; 2.6, steel sleeve; 2.7, upper node bolt; 2.8, first nut; 2.9, rotating sleeve; 2.10, second long circular hole; 2.11, second nut; 3, lower connecting node; 3.1, connecting piece; 3.2, lower node bolt; 3.3, adjusting bolt; 3.4, third long circular hole; 3.5, fourth long circular hole; 3.6, third nut; 4, structure. DETAILED DESCRIPTION

[0041] As Figures 1-9 shown, the application discloses a prefabricated lightweight outer wallboard with a three-dimensionally adjustable dry connecting node and an assembling method, the outer wallboard comprises a wallboard 1, an upper connecting node 2 installed on the upper part of the wallboard 1 and a lower connecting node 3 installed on the lower part of the wallboard 1, the upper connecting node 2 and the lower connecting node 3 connect the wallboard 1 with a structure 4, and the application takes the structure 4 as an I-beam for example to illustrate.

[0042] The wallboard 1 comprises a light steel skeleton 1.1, a panel 1.2 arranged on one side of the light steel skeleton 1.1, a steel mesh 1.3 arranged on the other side of the light steel skeleton 1.1 and lightweight concrete 1.4 filled in the light steel skeleton 1.1, and the side of the light steel skeleton 1.1, on which the panel 1.2 is not arranged, is provided with an alkali-resistant mesh cloth 1.5 and a polymer anti-cracking mortar layer 1.6 outside the steel mesh 1.3, the light steel skeleton 1.1 adopts cold-bent thin-walled galvanized steel as a bearing skeleton, which comprises vertical C-shaped keels and horizontal U-shaped keels, and the two are connected to form an integral frame through rivets or self-tapping nails; the panel 1.2 is a calcium silicate panel 1.2 fixed on one side of the skeleton, serves as a bottom mold for pouring the lightweight concrete 1.4 and is tightly connected with the light steel skeleton 1.1 through self-tapping screws; the steel mesh 1.3 is connected with the keel flanges through self-tapping screws to enhance the impact resistance of the wall; the lightweight concrete 1.4 is poured by using polyphenyl particle lightweight concrete 1.4 or other lightweight inorganic materials, is filled in the cavity inside the skeleton and forms a lightweight fireproof enclosure structure 4; the alkali-resistant mesh cloth 1.5 and the polymer anti-cracking mortar protective layer 1.6 are used to improve the crack resistance and waterproof performance, wherein sleeves are reserved on the wallboard 1 for connection with the upper connecting node 2 or the lower connecting node 3, the wallboard 1 realizes the integration of enclosure, fireproof and sound insulation functions, and meets the requirements of factory standardized production and on-site rapid assembly at the same time.

[0043] The upper connecting node 2 and the lower connecting node 3 are provided in two in the embodiment of the application, and are arranged close to one side of the wallboard 1. The upper connecting node 2 and the lower connecting node 3 adopt a swing type flexible structure. The upper connecting node 2 comprises a connecting plate 2.1 and a swing piece 2.2. The connecting plate 2.1 is connected with a flange or a horizontal part of the structure 4 through a pair of fastening bolts 2.3. The connecting plate 2.1 is provided with a first long circular hole 2.4 with a long axis arranged in a horizontal direction. The fastening bolt 2.3 is connected with the structure 4 by penetrating through the first long circular hole 2.4. The first long circular hole 2.4 is arranged for adjusting the installation position of the wallboard 1 left and right, so as to ensure the installation accuracy of the wallboard 1. The swing piece 2.2 is located between the wallboard 1 and the connecting plate 2.1 and is connected with the connecting plate 2.1 through a connecting bolt 2.5. The swing piece 2.2 is provided with a second long circular hole 2.10 with a long axis arranged in a length direction. A steel sleeve 2.6 is arranged in the second long circular hole 2.10. The length of the steel sleeve 2.6 is greater than the thickness of the swing piece 2.2. The wallboard 1 is connected with the swing piece 2.2 through an upper node bolt 2.7. The upper node bolt 2.7 penetrates through the steel sleeve 2.6 and is fastened through a first nut 2.8 arranged on both sides of the steel sleeve 2.6. By arranging the swing piece 2.2 and arranging the second long circular hole 2.10 and the steel sleeve 2.6 on the swing piece 2.2, when the structure 4 is deformed greatly, the swing piece 2.2 can swing under the cooperation of the second long circular hole 2.10 and the upper node bolt 2.7 along with the movement of the structure 4, so that the structure 4 moves while the wallboard 1 remains basically unchanged. This process can ensure that the deformation of the main structure 4 will not transmit the load to the wallboard 1, so as to avoid the damage of the wallboard 1.

[0044] A threaded hole is arranged on the side surface of the connecting plate 2.1. A rotating sleeve 2.9 is fixedly arranged on the top surface of the swing piece 2.2. The connecting bolt 2.5 penetrates through the rotating sleeve 2.9 and is screwed into the threaded hole, so as to realize the connection between the connecting plate 2.1 and the swing piece 2.2. The upper node bolt 2.7 is fastened through a second nut 2.11 by penetrating through a sleeve pre-buried on the wallboard 1, so as to realize the assembly of the upper node bolt 2.7 and the wallboard 1.

[0045] The lower connecting node 3 comprises a connecting piece 3.1, a lower node bolt 3.2 connecting the wall panel 1 and the connecting piece 3.1, and a fastening bolt 2.3 connecting the structure 4 and the connecting piece 3.1. In the embodiment of the present application, the connecting piece 3.1 is an L-shaped component, and can also be other assembly components on the market that can adjust the installation position of the wall panel 1 in three dimensions. The present application takes the L-shaped component as an example for description. The connecting piece 3.1 is provided with a third long circular hole 3.4 with a long axis arranged in a horizontal direction at the installation position of the lower node bolt 3.2, which is used to adjust the horizontal position of the wall panel 1. The connecting piece 3.1 is provided with a fourth long circular hole 3.5 with a long axis arranged in the direction of the wall panel 1 at the installation position of the fastening bolt 2.3, which is used to adjust the distance between the wall panel 1 and the structure 4. The connecting piece 3.1 is further provided with an adjusting bolt 3.3. The adjusting bolt 3.3 is used to adjust the flatness of the connecting piece 3.1 and finely adjust the installation height of the wall panel 1. In the embodiment of the present application, three adjusting bolts 3.3 are taken as an example for description. The three adjusting bolts 3.3 are arranged in a triangular shape to form a stable supporting plane, and it is easier to adjust and keep the connecting piece 3.1 in a horizontal state. The adjusting bolt 3.3 passes through the connecting piece 3.1 and is supported on the flange of the structure 4, which is used to finely adjust the installation height of the connecting piece 3.1.

[0046] In the embodiment of the present application, the lower node bolt 3.2 of one of the lower connecting nodes 3 is sleeved with a steel sleeve 2.6. The steel sleeve 2.6 is arranged in the third long circular hole 3.4 through which the lower node bolt 3.2 passes, and the length of the steel sleeve 2.6 is greater than the thickness of the connecting piece 3.1. The lower node bolt 3.2 is fastened with the connecting piece 3.1 through the third nut 3.6 located on both sides of the steel sleeve 2.6. When the wall panel 1 or the main structure 4 is displaced and dislocated in the plane due to load or temperature action and the like during the operation of the node, the third long circular hole 3.4 on the angle steel of one of the lower nodes is provided with the steel sleeve 2.6. After the third nut 3.6 of the lower node is tightened, the high-strength bolt can also slide on the third long circular hole 3.4. The second long circular hole 2.10 in the swing piece 2.2 of the upper node is also provided with the steel sleeve 2.6 and can swing and rotate. In this way, the deformation of the wall panel 1 in the horizontal and vertical directions in the plane can be adapted, and the wall panel 1 can be prevented from being damaged.

[0047] Horizontal adjustment in the plane. When the wall panel 1 or the main structure 4 needs to be adjusted in the horizontal direction in the plane, the wall panel 1 can be adjusted in the horizontal direction in the plane through the third long circular hole 3.4 on the angle steel of the lower node. At the same time, the connecting plate 2.1 of the upper node has the first long circular hole 2.4 to adapt to the horizontal adjustment of the wall panel 1 in the plane, and the swing piece 2.2 can be in a vertically downward state during adjustment.

[0048] Vertical adjustment in the plane. When the wall panel 1 has an error in the vertical direction in the plane and needs to be adjusted, the adjusting bolt 3.3 on the angle steel of the lower node is rotated to move the wall panel 1 in the vertical direction. At the same time, the second long circular hole 2.10 of the swing piece 2.2 of the upper node can adapt to the adjustment and movement of the wall panel 1 in the vertical direction.

[0049] Out-of-plane adjustment: When there is an error between wall panel 1 and main structure 4 in the out-of-plane or when the verticality of wall panel 1 needs to be calibrated, coarse adjustment can be made by first adjusting the length of the angle steel of the lower node extending out of the plane, and then fine adjustment can be made by screwing in and out the nuts of the high-strength bolts of the upper and lower nodes, thereby adjusting the out-of-plane installation error.

[0050] The national standard "Technical Standard for Prefabricated Concrete Buildings" stipulates that "under seismic design conditions, the connection nodes in the plane of wall panel 1 should have a deformation capacity of not less than three times the elastic inter-story drift angle of the main structure 4 under the design seismic load." This means that wall panel 1 needs to have the ability to adapt to large deformations in the plane of the main structure 4 through node construction. When the main structure 4 deforms in the plane of wall panel 1 due to seismic load, the upper node will move accordingly. However, through the rotation of the upper node rocker element 2.2, the position of wall panel 1 can be kept basically stationary without affecting the load-bearing capacity of the node. This process ensures that the deformation of the main structure 4 will not transfer the load to wall panel 1, thereby avoiding damage to wall panel 1.

[0051] To accommodate the deformation of structure 4 under various loads, when the wall panel 1 or the main structure 4 experiences displacement and misalignment in the plane due to loads or temperature changes during node operation, a steel sleeve 2.6 is provided in the third elongated hole 3.4 on the angle steel of one of the lower nodes. This allows the high-strength bolt to slide in the third elongated hole 3.4 after the third nut 3.6 of the lower node is tightened. Similarly, a steel sleeve 2.6 is provided in the second elongated hole 2.10 of the rocker component 2.2 of the upper node, allowing for rocking and rotation. This accommodates the self-deformation of wall panel 1 in both horizontal and vertical directions within the plane, preventing damage to wall panel 1.

[0052] The assembly method includes the following steps:

[0053] S1: After the wall panel 1 is transported to the construction site, the lower node bolt 3.2 and the upper node bolt 2.7 are passed through the sleeves embedded in the wall panel 1 and tightened with the second nut 2.11.

[0054] S2: The connecting plate 2.1 and the connecting piece 3.1 are initially fixed to the flange of the structure 4 by fastening bolts 2.3. The connecting plate 2.1 of the upper node is initially fixed to the lower flange of the I-beam by fastening bolts 2.3, and the angle steel of the lower node is initially fixed to the upper flange of the I-beam by fastening bolts 2.3.

[0055] S3: After the wall panel 1 is hoisted into place and temporarily fixed, a steel sleeve 2.6 is fitted onto the upper node bolt 2.7 and initially fixed to the rocker component 2.2 through the first nut 2.8. The rocker component 2.2 is connected to the connecting plate 2.1 through the connecting bolt 2.5. The lower node bolt 3.2 is initially fixed to the connecting component 3.1 through the third nut 3.6.

[0056] S4: When the wallboard 1 and the structure 4 have errors out of plane or the verticality of the wallboard 1 needs to be calibrated, the length of the connecting piece 3.1 extending out of the plane is first adjusted for coarse adjustment, and then the first nut 2.8 and the third nut 3.6 on the upper node bolt 2.7 and the lower node bolt 3.2 are screwed in and out for fine adjustment, so as to adjust the installation error out of plane.

[0057] S5: When the wallboard 1 has errors in the plane, the position of the wallboard 1 is adjusted through the third long circular hole 3.4 arranged on the connecting piece 3.1, and the height of the wallboard 1 is adjusted by rotating the adjusting bolt 3.3; at the same time, the first long circular hole 2.4 is arranged on the connecting plate 2.1, and the second long circular hole 2.10 is arranged on the swing piece 2.2 to adapt to the adjustment of the wallboard 1.

[0058] S6: After the three-dimensional adjustment of the wallboard 1, the first nut 2.8 and the third nut 3.6 are tightened and fixed, and then the subsequent plate joint processing work is carried out.

[0059] The above-described embodiments are only used to describe the preferred embodiments of the present application, and do not limit the scope of the present application. Without departing from the design spirit of the present application, various modifications and improvements of the technical solutions of the present application made by those skilled in the art shall fall within the protection scope determined by the claims of the present application.

Claims

1. Prefabricated lightweight external wall panel with a three-dimensionally adjustable dry connection node, comprising a wall panel (1), characterized in that, It also includes a lower connecting node (3) and an upper connecting node (2) for connecting the wallboard (1) with the structure (4); The lower connecting node (3) comprises a connecting piece (3.1), a lower node bolt (3.2) connecting the wallboard (1) with the connecting piece (3.1), and a fastening bolt (2.3) connecting the structure (4) with the connecting piece (3.1); the connecting piece (3.1) is provided with a third long circular hole (3.4) with a long axis arranged in the horizontal direction at the installation position of the lower node bolt (3.2), and a fourth long circular hole (3.5) with a long axis arranged in the direction of the wallboard (1) adjustment; the connecting piece (3.1) is also provided with an adjusting bolt (3.3), which is supported on the structure (4) through the connecting piece (3.1) and used for fine adjustment of the installation height and flatness of the connecting piece (3.1); The upper connecting node (2) comprises a connecting plate (2.1) and a swing piece (2.2), the connecting plate (2.1) is connected with the structure (4) through the fastening bolt (2.3); the swing piece (2.2) is located between the wallboard (1) and the connecting plate (2.1) and is connected with the connecting plate (2.1) through the connecting bolt (2.5), the swing piece (2.2) is provided with a second long circular hole (2.10), the second long circular hole (2.10) is provided with a steel sleeve (2.6), the length of the steel sleeve (2.6) is greater than the thickness of the swing piece (2.2), the wallboard (1) is connected with the swing piece (2.2) through the upper node bolt (2.7), the upper node bolt (2.7) passes through the steel sleeve (2.6) and is fastened through the first nut (2.8) arranged on both sides of the steel sleeve (2.6); The connecting plate (2.1) is provided with a first long circular hole (2.4) with a long axis arranged in the horizontal direction, and the fastening bolt (2.3) is arranged at the first long circular hole (2.4); the top surface of the swing piece (2.2) is fixedly provided with a rotating sleeve (2.9), and the connecting bolt (2.5) passes through the rotating sleeve (2.9) and is connected with the connecting plate (2.1).

2. The precast light weight exterior wall panel with three-dimensional adjustable dry connection node according to claim 1, characterized in that, The side surface of the connecting plate (2.1) is provided with a threaded hole, and the connecting bolt (2.5) is screwed into the threaded hole to connect the connecting plate (2.1) with the swing piece (2.2).

3. The precast light weight exterior wall panel with three-dimensional adjustable dry connection node according to claim 1, characterized in that, The upper node bolt (2.7) passes through the wallboard (1) and is fastened through the second nut (2.11).

4. The precast light weight exterior wall panel with three-dimensional adjustable dry connection node according to claim 1, characterized in that, The upper connecting node (2) and the lower connecting node (3) are respectively provided with two, which are arranged near one side of the wallboard (1), one of the lower node bolts (3.2) of the lower connecting node (3) is provided with a steel sleeve (2.6), the steel sleeve (2.6) is arranged in the third long circular hole (3.4) through which the lower node bolt (3.2) passes, and the length of the steel sleeve (2.6) is greater than the thickness of the connecting piece (3.1), and the lower node bolt (3.2) is fastened with the connecting piece (3.1) through the third nut (3.6) arranged on both sides of the steel sleeve (2.6).

5. The precast light weight exterior wall panel with three-dimensional adjustable dry connection node according to claim 1, characterized in that, The wallboard (1) comprises a light steel framework (1.1), a panel (1.2) arranged on one side of the light steel framework (1.1), a steel wire mesh (1.3) arranged on the other side of the light steel framework (1.1), and light concrete (1.4) filled in the light steel framework (1.1), wherein the side of the light steel framework (1.1) without the panel (1.2) is provided with an alkali-resistant mesh cloth (1.5) and a polymer anti-cracking mortar protective layer (1.6) outside the steel wire mesh (1.3).

6. A method of assembling the prefabricated lightweight exterior wall panel with a three-dimensionally adjustable dry connection node according to claim 1 or 4, characterized in that, The method comprises the following steps: S1: After the wallboard (1) is transported to the construction site, the lower node bolt (3.2) and the upper node bolt (2.7) are respectively fixed and installed on the wallboard (1); S2: The connecting plate (2.1) and the connecting piece (3.1) are preliminarily fixed with the structure (4) through the fastening bolt (2.3); S3: After the wallboard (1) is hoisted and temporarily fixed, the steel sleeve (2.6) is sleeved on the upper node bolt (2.7) and preliminarily fixed with the swing piece (2.2) through the first nut (2.8), the swing piece (2.2) is connected with the connecting plate (2.1) through the connecting bolt (2.5), and the lower node bolt (3.2) is fixed with the connecting piece (3.1) through the third nut (3.6); S4: When there is an error in the plane or the verticality of the wallboard (1) needs to be calibrated, the length of the connecting piece (3.1) extending out of the plane is adjusted for rough adjustment, and the first nut (2.8) on the upper node bolt (2.7) and the third nut (3.6) on the lower node bolt (3.2) are screwed in and out for fine adjustment, so as to adjust the installation error out of the plane; S5: When there is an error in the plane, the position of the wallboard (1) is adjusted through the third long circular hole (3.4) arranged on the connecting piece (3.1), and the height of the wallboard (1) is adjusted through the rotating adjusting bolt (3.3); meanwhile, the first long circular hole (2.4) is arranged on the connecting plate (2.1), and the second long circular hole (2.10) is arranged on the swing piece (2.2) to adapt to the adjustment of the wallboard (1); S6: After the three-dimensional adjustment of the wallboard (1), the first nut (2.8) and the third nut (3.6) are respectively tightened and fixed.

Images