A prefabricated assembled shear wall connection and assembly device and assembly method

Abstract

This invention discloses a prefabricated assembled shear wall connection and assembly device and method, including a first cover plate assembly, a second cover plate assembly, and a connecting assembly. The first cover plate assembly is a prefabricated structure on which the longitudinal reinforcing bars of the upper wall are prefabricated. The second cover plate assembly is a prefabricated structure on which the longitudinal reinforcing bars of the lower wall are prefabricated. The two ends of the connecting assembly are respectively connected to the first and second cover plate assemblies, and the first and second cover plate assemblies are detachably connected through the connecting assembly. In this solution, the embedded parts of the device can be connected to the vertical reinforcing bars in the factory to ensure continuous force transmission. At the same time, the complete set of buckles and the matching assembly method in the splicing device can ensure that the on-site connection and assembly of the shear wall is simple, the force transmission is clear, and the connection of each reinforcing bar on site is avoided. In addition, the assembly structure can realize the on-site inspection and adjustment of the connection status, effectively improving the on-site assembly speed of the prefabricated shear wall.

Description

Technical Field

[0001] This invention relates to the field of building engineering technology, specifically to a prefabricated assembled shear wall connection and assembly device and assembly method. Background Technology

[0002] Precast shear walls are commonly used vertical load-bearing components in precast structural systems, and their application is becoming increasingly widespread with the promotion of industrialized building.

[0003] However, compared to traditional cast-in-place shear walls, the vertical steel reinforcement connections during on-site installation are mostly wet connections, the grouting process is complex and the quality is difficult to guarantee; the number of steel reinforcement connections between upper and lower layers is large, and there is an accumulation of assembly errors, which makes on-site construction and positioning difficult; new rapid connection technologies need to be developed.

[0004] Existing research has proposed some dry-connection technologies for reinforcing bars. However, existing patents still have some technical shortcomings: First, existing dry-connection technologies for reinforcing bars still require on-site connection of each individual bar, which cannot solve the problem of alignment difficulties; at the same time, the need for on-site connection of each individual bar leads to a large workload and makes it difficult to control the quality of concealed works; second, the connection device is not connected to the vertical reinforcing bars inside the wall, which requires high anchorage design.

[0005] Therefore, there is an urgent need for a rapid connection and assembly device that can enable the rapid on-site splicing of precast shear walls to solve the technical defects of existing steel reinforcement connection technology. Summary of the Invention

[0006] In view of the technical defects of existing steel bar connection technology, the purpose of this invention is to provide a prefabricated assembled shear wall connection and assembly device, which can realize the rapid on-site splicing of prefabricated shear walls. On this basis, an assembly method for the prefabricated assembled shear wall connection and assembly device is also provided, which effectively overcomes the problems existing in the prior art.

[0007] To achieve the above objectives, the present invention provides a prefabricated assembled shear wall connection and assembly device, including a first cover plate assembly, a second cover plate assembly, and a connecting assembly. The first cover plate assembly is a prefabricated structure on which longitudinal steel bars in the upper wall are prefabricated. The second cover plate assembly is a prefabricated structure on which longitudinal steel bars in the lower wall are prefabricated. The two ends of the connecting assembly are respectively connected to the first cover plate assembly and the second cover plate assembly, and the first cover plate assembly and the second cover plate assembly are detachably connected through the connecting assembly.

[0008] Furthermore, the second cover plate assembly is a second connecting box, which is composed of several second outer frames arranged around the second base plate, and the second connecting box formed by the cooperation is provided with a second internal groove in the middle.

[0009] The base plate has several second mounting holes. The longitudinal steel bars in the lower wall pass through the second mounting holes and are positioned and connected to the second base plate with locking components.

[0010] Furthermore, the second built-in groove is provided with a second transverse and longitudinal rib plate, and the cross structure area at the intersection of the second transverse and longitudinal rib plate is provided with a second connecting hole for installing the connecting component.

[0011] Furthermore, the side walls of the second outer frame are provided with a number of holes for setting floor slab reinforcement.

[0012] Furthermore, the first cover plate assembly includes a first connecting box, which is composed of several first outer frames disposed around the first base plate, and the second connecting box formed by the cooperation is provided with a first built-in groove in the middle.

[0013] The first base plate has several first mounting holes. The longitudinal steel bars in the upper wall pass through the first mounting holes and are positioned and connected to the first base plate with locking components.

[0014] Furthermore, the first built-in groove is provided with first horizontal and vertical ribs, which can form several installation areas for installing connecting components.

[0015] Furthermore, the connecting assembly includes a first screw, a second screw, and a locking portion. The first screw and the second screw can be respectively disposed at both ends of the locking portion, and the second screw is engaged with the second connecting hole. The first screw and the locking portion can pass through the installation area in the first built-in groove and be confined within the first built-in groove.

[0016] Furthermore, the engaging part includes a locking element, a locking tenon, a spring, and a base. The locking element is located on the base, and the locking tenons are distributed around the locking element and rotatably mounted on the locking element via pins. The locking tenons can rotate relative to the locking element around the pins. A spring is provided in the direction of rotation of the locking tenons relative to the locking element. The two ends of the spring are respectively connected to the locking tenons and the interior of the locking element. When the locking tenons rotate inward relative to the locking element, the spring can be compressed. When the locking tenons are in the unfolded state, the springs are in the extended state and provide a certain supporting force to the locking tenons.

[0017] When the engaging part passes through the installation area of ​​the first mounting box, the latch is retracted due to the compression of the inner wall of the first mounting box. When the latch is retracted, the clip can pass through the installation area of ​​the first connecting box and reach the first internal groove of the first connecting box. After reaching the first internal groove of the first connecting box, since there is no compressive force, the latch is popped out by the spring. After the latch is unfolded, it is prevented from further flipping by the internal retaining groove of the clip and pressure is transmitted. The clip is then confined in the first internal groove of the first connecting box.

[0018] Furthermore, the first cover plate assembly also includes a first cover plate, which has a plurality of first mounting holes corresponding to the first base plate. The longitudinal steel bars of the upper wall in the first connecting box can pass through the corresponding first mounting holes on the first cover plate and, together with the locking member, fit and fasten the first cover plate to the first connecting box. The first cover plate has a first connecting hole in the middle that is adapted to the first screw of the connecting assembly.

[0019] To achieve the above objectives, the present invention provides an assembly method for a prefabricated assembled shear wall connection assembly device, the assembly method comprising the following assembly steps:

[0020] (1) The longitudinal steel bars of the upper connecting structure and the longitudinal steel bars of the lower connecting structure are pre-installed on the first connecting box and the second connecting box, and are fastened by locking parts;

[0021] (2) After protecting the second connecting hole in the second connecting box with the threaded hole plug, the top surface of the second connecting box is flush with the top surface of the floor slab, and considering the slab thickness control, it is placed above the top surface of the wall or cast integrally with the precast wall in the component;

[0022] (3) After removing the threaded hole plug, connect the connecting assembly to the second connecting hole in the second connecting box via the lower screw;

[0023] (4) Hoist the first connecting box to the upper part of the second connecting box, and after the clip of the connecting component passes through the installation area of ​​the first connecting box, limit it to the first connecting box by the tenon;

[0024] (5) After passing the first cover plate through the longitudinal steel bars of the upper connecting structure, cover the first connecting box, and connect it to the connecting component through the first connecting hole on the first cover plate via the upper screw. Then, finely adjust the upper and lower positions of the connecting component through the mounting hole to complete the assembly.

[0025] (6) Finally, the joints are sealed by grouting and elastic expansion sealant.

[0026] The prefabricated assembled shear wall connection and assembly device and assembly method provided by the present invention can connect the vertical steel bars of the prefabricated embedded part of the device in the factory to ensure continuous force transmission.

[0027] Meanwhile, the complete set of snap-fit ​​design in the splicing device and the matching assembly method can ensure that the on-site connection and assembly of shear walls is simple, the force transmission is clear, and the connection of steel bars on site is avoided one by one.

[0028] Secondly, this assembly structure allows for on-site monitoring and adjustment of the connection status, effectively improving the on-site assembly speed of precast shear walls and ensuring splicing quality. Attached Figure Description

[0029] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0030] Figure 1 This is a schematic diagram of the overall structure of the present invention after assembly;

[0031] Figure 2 This is an exploded view of the overall structure of the present invention;

[0032] Figure 3 This is a schematic diagram of the structure of the second cover plate assembly in this invention;

[0033] Figure 4 This is a schematic diagram of the bottom structure of the first cover plate in this invention;

[0034] Figure 5 This is an assembly diagram of the first connecting box, the second connecting box, and the connecting components in this invention;

[0035] Figure 6 This is a schematic diagram of the structure of the first cover plate in this invention;

[0036] Figure 7 This is a schematic diagram of the overall structure of the connecting component in this invention;

[0037] Figure 8 This is a schematic diagram showing the disassembled connection components in this invention;

[0038] Figure 9 This is a schematic diagram of the internal structure of the connecting component in this invention;

[0039] Figure 10 This is a schematic diagram of the overall structural assembly in this invention.

[0040] The following are the component labels in the attached diagram:

[0041] 100. First cover plate assembly; 200. Second cover plate assembly; 300. Connecting assembly; 210. Second outer frame; 220. Second base plate; 221. Second internal groove; 222. Second locking element; 223. Groove; 230. Second longitudinal rib; 240. Second transverse rib; 250. Hole; 260. Cross-shaped structure area; 261. Second connecting hole; 110. First cover plate; 111. Third locking element; 112. First connecting hole; 120. First connecting box; 121. First outer frame; 122. First base plate; 123. First mounting hole; 124. First locking element; 125. First longitudinal rib; 126. First transverse rib; 127. Mounting area of ​​connecting assembly; 128. First internal groove; 310. First screw; 320. Second screw; 330. Engaging part; 331. 332. Clip; 333. Spring; 334. Base; 335. Pin; 336. Mounting hole; 337. Groove; 400. Upper wall reinforcement; 500. Lower wall reinforcement. Detailed Implementation

[0042] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below with reference to specific illustrations.

[0043] Existing steel reinforcement connection structures require on-site connection of each individual steel bar, resulting in complex connection structures and inconsistent splicing quality. To address these shortcomings, this solution provides a prefabricated assembly shear wall connection device and assembly method. Compared to existing steel reinforcement connection structures, the device's embedded parts can be connected to the vertical steel bars in the factory, ensuring continuous force transmission. On-site, the upper and lower structures can be quickly connected using quick-connect components, resulting in high on-site assembly efficiency and guaranteed splicing quality, effectively solving the problems existing in the current technology.

[0044] Furthermore, the width and length of the prefabricated shear wall connection assembly device in this scheme need to be designed to match the size of the components, but the specific dimensions are not limited.

[0045] Further, see Figures 1-2 The prefabricated shear wall connection assembly device includes a first cover plate assembly 100, a second cover plate assembly 200, and a connecting assembly 300. The first cover plate assembly 100 and the second cover plate assembly 200 can be assembled and detached on site through the connecting assembly 300, which greatly improves the connection efficiency of the steel structure on site.

[0046] The second cover plate assembly 200 is the lower structure of the overall structure. See below. Figure 3The second cover plate assembly 200 is a second connecting box, which is composed of four second outer frames 210 and a second base plate 220, and has a second internal groove 221 in the middle.

[0047] Among them, four second outer frames 210 are set around the second base plate 220. The second base plate 220 is a prefabricated structure, which serves to fix the longitudinal steel bars of the wall.

[0048] The second base plate 220 is provided with two rows of second mounting holes, each row of which is equidistant from each other, for installing the lower wall reinforcement 500. The diameter of the second mounting hole is matched with the diameter of the lower wall reinforcement 500, so that the lower wall reinforcement 500 can be longitudinally passed through the second mounting hole.

[0049] Several lower wall steel bars 500 are respectively longitudinally arranged in the second mounting holes of the base plate, and the lower wall steel bars 500 are positioned and locked to the second connecting box by the matching second locking member 222.

[0050] Furthermore, a second longitudinal rib 230 and several second transverse ribs 240 are provided in the second internal groove 221 of the second connecting box. The second longitudinal rib 230 and several second transverse ribs 240 can be arranged in combination to divide the second internal groove 221 of the second connecting box into several areas. By setting the longitudinal and transverse ribs, the rigidity and strength of the second connecting box can be improved. Several holes 250 are respectively provided on the four second outer frames 210 of the second connecting box, which allow the reinforcement bars of the floor slab to pass through.

[0051] In some instances, on two opposing long outer frames of the four second outer frames 210, a hole 250 is provided for each area, through which the floor slab reinforcement can pass through the transverse area. At the same time, holes 250 are also provided on the second longitudinal rib 230 located in the middle of the two areas, through which the floor slab reinforcement can be positioned to ensure the stable installation of the floor slab reinforcement.

[0052] Similarly, on two opposite short outer frames of the four second outer frames 210, a hole 250 is set for each row of areas. The floor slab reinforcement can pass through the longitudinal area through the hole 250. At the same time, the second transverse rib 240 located in the middle of the longitudinal area is also provided with corresponding holes 250. The floor slab reinforcement can be positioned through the hole 250 to ensure the stable installation of the floor slab reinforcement.

[0053] Preferably, a groove 223 is provided on the second base plate 220. When the floor slab reinforcement passes through the longitudinal area, the floor slab reinforcement can be embedded in this groove 223, which can further limit the installation of the floor slab reinforcement and ensure its stability.

[0054] Meanwhile, a cross-shaped area 260 is formed at each intersection of the second longitudinal and transverse ribs. A second connecting hole 261 is provided on the cross-shaped area 260 where the second longitudinal and transverse ribs intersect, for cooperating with the connecting component 300. The connecting component 300 is placed in the second connecting hole 261 to realize the connection between the connecting component 300 and the second connecting box. The second connecting box and the first cover plate assembly 100 are quickly connected by setting the connecting component 300 on the second connecting box.

[0055] Here, this solution does not limit the distribution structure of the second connecting hole 261 on the second longitudinal and transverse ribs. Due to the influence of the width of the connecting components, it is set at least once in a cross area, so that they can be installed smoothly without interference. The specific number of distribution intervals can be determined according to the actual situation.

[0056] Furthermore, the first cover plate assembly 100 is the upper structure of the overall structure, see [reference]. Figures 4-5 It includes a first cover plate 110 and a first connecting box 120, with the first cover plate 110 and the first connecting box 120 being connected together.

[0057] Furthermore, the first connecting box 120 is a prefabricated structure, which consists of four first outer frames 121 and a first base plate 122. The four first outer frames 121 are arranged around the first base plate 122, and a first internal groove 128 is formed in the middle.

[0058] The first built-in groove 128 has several mounting holes on both sides corresponding to the first cover plate 110 for installing the upper wall steel bars 400. The steel bars can be passed through the first built-in groove 128. After the steel bars are passed through the first built-in groove 128, the bottom is pre-tightened by the matching first locking member 124, so that the upper wall steel bars 400 are firmly fixed on the first connecting box 120.

[0059] Furthermore, a plurality of first longitudinal ribs 125 and first transverse ribs 126 are provided within the first built-in groove 128. The first longitudinal ribs 125 and the first transverse ribs 126 divide the middle of the first built-in groove 128 into a plurality of mounting areas 127 for connecting components. The mounting areas 127 for connecting components correspond to the second connecting holes 261 in the second connecting box. By providing longitudinal and transverse ribs within the first built-in groove 128, the rigidity and strength of the first connecting box 120 can be improved.

[0060] Furthermore, the first cover plate 110 is a prefabricated structure, see [reference needed]. Figure 6 A number of first mounting holes 123 are also provided on the first cover plate 110 corresponding to the first built-in groove 128. The number of first mounting holes 123 are distributed on the first cover plate 110 and are used to install a number of upper wall steel bars 400.

[0061] In this design, two rows of first mounting holes 123 are symmetrically arranged on the first cover plate 110. The first mounting holes 123 in each row are equidistant. The diameter of the first mounting holes 123 is adapted to the diameter of the reinforcing bar, so that the reinforcing bar can be passed through the first mounting holes 123. After the reinforcing bar pre-installed in the first connecting box 120 passes through the first mounting holes 123, the reinforcing bar is positioned and locked on the first cover plate 110 by the adapted third locking member 111.

[0062] The distribution structure of the first mounting holes 123 on the first cover plate 110 and the first connecting box 120 is the same as the distribution structure of the second mounting holes on the second connecting box. However, this scheme is not limited to the above two rows of mounting holes. The distribution structure of the mounting holes in each row is equidistant. The specific distribution structure can be determined according to the preset distribution structure and quantity of the reinforcing bars.

[0063] The first cover plate 110 has corresponding first connection holes 112 in the middle for the number and installation position of the connecting components 300, for the installation of the connecting components 300. These first connection holes 112 must ensure a certain tolerance when connected to the connecting components 300.

[0064] Furthermore, the connecting assembly 300 is used for quick connection between the first cover plate assembly 100 and the second cover plate assembly 200, see [link to documentation]. Figures 7-9 It includes a first screw 310, a second screw 320, and a locking portion 330.

[0065] The first screw 310 and the second screw 320 can be respectively disposed on the upper part and the lower part of the engaging part 330. The second screw 320 located on the lower part of the engaging part 330 is used to make a threaded connection with the second connecting hole 261 on the second connecting box. The first screw 310 located on the upper part of the engaging part 330 passes through the first connecting box 120 and makes a threaded connection with the first connecting hole 112 on the first cover plate 110. Thus, the pre-positioning connection of the first cover plate assembly 100 and the second cover plate assembly 200 can be realized.

[0066] The engaging part 330 includes a locking element 331, a locking tenon 332, a spring 333, and a base 334.

[0067] The clip 331 is located on the base 334, and the clip 332 and spring 333 can be installed inside the clip 331.

[0068] Furthermore, the tenons 332 are distributed around the card 331 and are rotatably mounted on the card 331 via the pins 335. The tenons 332 can rotate relative to the card 331 around the pins 335.

[0069] Meanwhile, a spring 333 is provided in the direction of rotation of the latch 332 relative to the latch 331. One end of the spring 333 is connected to the latch 332, and the other end is connected to the inside of the latch 331. When the latch 332 rotates inward relative to the latch 331, the spring 333 can be compressed. When the latch 332 is in the unfolded state, the spring 333 is in the extended state and provides a certain supporting force to the latch 332.

[0070] Furthermore, the card 331 is disposed on the upper part of the base 334, and the height of the card 331 is consistent with the net depth of the first connecting box 120, so that the card 331 can pass through the first connecting box 120 and be placed in the first internal slot 128 of the first connecting box 120.

[0071] After the second screw 320 of the connecting component 300 is placed on the second connecting hole 261 of the second connecting box, the engaging part 330 of the connecting component 300 is passed through the connecting component mounting area 127 of the first connecting box 120. Due to the compression of the inner wall of the first connecting box 120, the tenons 332 around the tenon 331 move inward relative to the tenon 331 against the spring force, and are in a retracted state. When the tenons 332 are in the retracted state, the tenon can pass through the mounting area of ​​the first connecting box 120 and reach the first internal groove of the first connecting box 120.

[0072] Once the first internal groove 128 of the first connecting box 120 is reached, the latch 332 pops out and unfolds due to the absence of compressive force, thanks to the restoring force of the spring 333.

[0073] After the latch 332 is unfolded, a retaining groove 337 is provided between the upper part of the latch 332 and the latch 331. When the lower part of the latch 332 contacts the first built-in groove 128, the overturning torque it receives can be balanced by the reaction force provided by the retaining groove 337.

[0074] Then, the first cover plate 110 is placed over the first connecting box 120, and the first screw 310 of the connecting assembly 300 is threadedly connected to the first connecting hole 112 on the first cover plate 110; finally, the first locking member 124 is tightened, thus completing the connection between the first cover plate assembly 100 and the second cover plate assembly 200.

[0075] Meanwhile, an installation hole 336 is provided near the bottom of the base 334. A plain round steel bar can be inserted into the hole, and the connecting component 300 can be rotated as a whole through the steel bar to simultaneously tighten or loosen its first screw 310 and second screw 320, thereby adjusting the vertical position of the connecting component 300.

[0076] At the same time, the lower base 334 can be directly regarded as a bolt and tightened with tools such as wrenches to ensure the installation stability of the connecting component 300.

[0077] Apart from the tenon 332 and pin 335 at the connecting component 300, the remaining parts are preferably integrally cast to ensure the stability of the connecting component 300.

[0078] This solution does not limit the shape of the connecting component 300; the shape can be set to square, circle, or other shapes as required.

[0079] Based on the above structure, as follows Figure 10 This solution also provides an assembly method for the prefabricated assembled shear wall connection and assembly device, as follows:

[0080] First, the upper connecting box 120, the lower connecting box 200, and the connecting components are prefabricated in the prefabrication plant. Specifically, the steel bars 400 of the upper connecting structure are longitudinally installed in the upper cover plate 110 and the upper connecting box 120, and the steel bars 500 of the lower connecting structure are longitudinally installed in the lower connecting box 200, and then positioned and tightened using appropriate nuts.

[0081] Furthermore, the top surface of the lower connecting box 200 is flush with the upper surface of the floor slab, and taking into account the slab thickness control, it is placed above the top surface of the wall or cast integrally with the precast wall within the component.

[0082] Furthermore, after the lower wall is installed, when laying the floor slab reinforcement and pouring concrete, the floor slab reinforcement is passed through the hole 250 reserved in the side wall of the outer frame of the lower connection box 200, and the second connection hole 261 of the connection component is protected by a threaded hole plug during pouring.

[0083] Then, after grinding down the excess concrete in the lower connecting box 200, the threaded plug in the second connecting hole 261 is removed, and the lower screw 320 of the connecting assembly 300 is threadedly connected to the second connecting hole 261.

[0084] Then, the upper wall is hoisted above the lower wall, and the first locking member 124 of the longitudinal reinforcement in the upper connecting box 120 is loosened by screwing, but not completely disassembled. Then, the upper connecting box 120 is hoisted above the lower wall, and the connecting component 300 is passed through the upper connecting box 120 and the latch 332 pops out. At the same time, the upper screw 310 of the connecting component 300 is threaded to the first connecting hole 112 in the upper cover plate 110. Then, the first locking member 124 connecting the upper connecting box 120 to the longitudinal reinforcement of the upper precast wall is initially tightened.

[0085] Next, tighten the connecting assembly 300 using the mounting holes in the lower base or a wrench. Then, tighten the first locking member 124 connecting the upper connecting box 120 to the longitudinal reinforcement of the upper precast wall, repeating this process multiple times if necessary. Finally, ensure the upper connecting box 120 is completely flush with the upper cover plate 110.

[0086] Finally, the joints are sealed by grouting and using elastic expansion joint filler.

[0087] The prefabricated assembly shear wall connection and assembly device and assembly method constituted by the above scheme can realize the rapid on-site splicing of prefabricated shear walls; at the same time, a supporting construction and installation process is designed, which can be effectively combined with the connection and assembly device in this patent to ensure the reasonable use of the device.

[0088] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A prefabricated assembled shear wall connection and assembly device, characterized in that, The system includes a first cover plate assembly, a second cover plate assembly, and a connecting assembly. The first cover plate assembly is a prefabricated structure, with the longitudinal reinforcing bars of the upper wall prefabricated on it. The second cover plate assembly is also a prefabricated structure, with the longitudinal reinforcing bars of the lower wall prefabricated on it. The connecting assembly connects the first and second cover plate assemblies at both ends, allowing for detachable assembly and assembly on-site. The connecting assembly includes a first screw, a second screw, and a locking portion. The first and second screws are located at the upper and lower parts of the locking portion, respectively. The second screw at the lower part of the locking portion is threaded into a second connecting hole on a second connecting box, while the first screw at the upper part passes through the first connecting box and the first cover plate. The first connecting hole is threaded to achieve a pre-positioned connection between the first cover plate assembly and the second cover plate assembly. The engaging part includes a locking element, a locking tenon, a spring, and a base. The locking element is located on the base, and its height is consistent with the net depth of the first connecting box, allowing it to pass through the first connecting box and be placed in the first internal groove of the first connecting box. The locking tenon and the spring can be installed inside the locking element. The locking tenon is distributed around the locking element and is rotatably mounted on the locking element via a pin. The locking tenon can rotate relative to the locking element around the pin. At the same time, a spring is provided in the direction of rotation of the locking tenon relative to the locking element. One end of the spring is connected to the locking tenon, and the other end is connected to the inside of the locking element. When the locking tenon rotates inward relative to the locking element, the spring can be compressed. When the locking tenon is in the unfolded state, the spring is in the extended state and provides a certain supporting force to the locking tenon. After placing the second screw of the connecting component onto the second connecting hole of the second connecting box, the engaging part of the connecting component passes through the connecting component installation area of ​​the first connecting box. Due to the pressure from the inner wall of the first connecting box, the latches around the latch move inward relative to the latch, overcoming the spring force, and are in a retracted state. When the latches are in the retracted state, the latch can pass precisely through the installation area of ​​the first connecting box and reach the first internal groove of the first connecting box. After reaching the first internal groove of the first connecting box, due to the absence of pressure, the latches pop out and unfold due to the restoring force of the spring. After the latches unfold, a retaining groove is provided between the upper part of the latch and the latch. When the lower part of the latch contacts the first internal groove, the overturning torque it experiences can be balanced by the reaction force provided by the retaining groove. Then, the first cover plate is placed on the first connecting box, and the first screw of the connecting component is threaded into the first connecting hole on the first cover plate. Finally, the first locking member is tightened, thus completing the connection between the first cover plate assembly and the second cover plate assembly.

2. The prefabricated assembled shear wall connection and assembly device according to claim 1, characterized in that, The second cover plate assembly is a second connecting box, which is composed of several second outer frames arranged around the second base plate, and the second connecting box formed by the cooperation is provided with a second internal groove in the middle. The base plate has several second mounting holes. The longitudinal steel bars in the lower wall pass through the second mounting holes and are positioned and connected to the second base plate with locking components.

3. The prefabricated assembled shear wall connection and assembly device according to claim 2, characterized in that, The second built-in groove is provided with a second transverse and longitudinal rib plate, and the cross structure area at the intersection of the second transverse and longitudinal rib plate is provided with a second connecting hole for installing the connecting component.

4. The prefabricated assembled shear wall connection and assembly device according to claim 2, characterized in that, The side walls of the second outer frame are provided with a number of holes for setting floor slab reinforcement.

5. The prefabricated assembled shear wall connection and assembly device according to claim 1, characterized in that, The first cover plate assembly includes a first connecting box, which is composed of several first outer frames disposed around the first base plate, and a second connecting box formed by the cooperation is provided with a first built-in groove in the middle. The first base plate has several first mounting holes. The longitudinal steel bars in the upper wall pass through the first mounting holes and are positioned and connected to the first base plate with locking components.

6. A prefabricated assembled shear wall connection and assembly device according to claim 5, characterized in that, The first built-in groove is provided with first horizontal and vertical ribs, which can form several installation areas for installing connecting components.

7. A prefabricated assembled shear wall connection and assembly device according to claim 5, characterized in that, The first cover plate assembly also includes a first cover plate, which has a plurality of first mounting holes corresponding to the first base plate. The longitudinal steel bars of the upper wall in the first connecting box can pass through the corresponding first mounting holes on the first cover plate and, together with the locking device, fit and fasten the first cover plate to the first connecting box. The first cover plate has a first connecting hole in the middle that is adapted to the first screw of the connecting assembly.

8. An assembly method for a prefabricated assembled shear wall connection and assembly device, characterized in that, The assembly method, based on the prefabricated assembled shear wall connection and assembly device according to any one of claims 1-7, includes the following assembly steps: (1) The longitudinal steel bars of the upper connecting structure and the longitudinal steel bars of the lower connecting structure are respectively pre-installed on the first connecting box and the second connecting box, and fastened by locking parts; (2) After protecting the second connecting hole in the second connecting box with the threaded hole plug, the top surface of the second connecting box is flush with the top surface of the floor slab, and considering the slab thickness control, it is placed above the top surface of the wall or cast integrally with the precast wall in the component; (3) After removing the threaded hole plug, connect the connecting assembly to the second connecting hole in the second connecting box via the lower screw; (4) Hoist the first connecting box to the upper part of the second connecting box, and after the clip of the connecting component passes through the installation area of ​​the first connecting box, limit it to the first connecting box by the tenon; (5) After passing the first cover plate through the longitudinal steel bars of the upper connecting structure, cover the first connecting box, and connect it to the connecting component through the first connecting hole on the first cover plate via the upper screw. Then, finely adjust the upper and lower positions of the connecting component through the mounting hole to complete the assembly. (6) Finally, the joints are sealed by grouting and elastic expansion sealant.

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