Prefabricated outer shear wall

Abstract

The application discloses an assembled prefabricated outer shear wall, which comprises a plate wall clamping mechanism, an auxiliary pressurizing mechanism, a prefabricated shear wall mechanism, a pre-embedded steel bar assembly and a concrete pouring cavity combination. The plate wall clamping mechanism comprises a blocking plate and a supporting piece, and a pushing combination is installed outside the supporting piece. The auxiliary pressurizing mechanism is inserted on the blocking plate. The prefabricated shear wall mechanism comprises a main wall combination, an auxiliary wall combination located on one side outside the main wall combination, and a window frame wall combination located outside the auxiliary wall combination. The transverse tension steel bars of the same interval extending to both sides outside the concrete wall body are matched with the steel bar end heads outside the auxiliary wall combination, and the pre-embedded steel bar assembly pre-embedded on the cement foundation is used to insert the steel bar end heads matched with each other of the main wall combination and the auxiliary wall combination, so that the efficiency of pouring cement in the wall joint of the two shear walls is improved, and the consistency of the two adjacent shear walls in the horizontal line is greatly improved.

Description

Technical Field

[0001] This invention relates to the field of building engineering, and more particularly to prefabricated external shear walls. Background Technology

[0002] Shear walls, also known as wind-resistant walls, earthquake-resistant walls, or structural walls, are walls in buildings or structures that primarily bear horizontal and vertical loads caused by wind or earthquakes to prevent structural shear failure. They are generally made of reinforced concrete.

[0003] During the installation of precast shear walls, cranes and support frames are needed to place the walls along the pre-reserved steel reinforcement cages. The most important part of the installation of shear walls is the filling of the joints between adjacent shear walls. Conventionally, before filling the joints of shear walls, steel reinforcement cages need to be pre-made manually to stabilize the joints. However, this process consumes a lot of manual labor time. At the same time, it is difficult to keep the pre-reserved steel reinforcement cages and the two adjacent shear walls in a consistent horizontal line. During the pouring of concrete, if the pre-reserved steel reinforcement cages shift, the center of gravity of the load-bearing joint between the two pre-reserved shear walls will easily shift, resulting in a reduction in the seismic resistance of the walls.

[0004] As shown above, the technical challenge that the inventor needs to solve is how to improve the workers' work efficiency and the stability and horizontal consistency between the two precast shear walls. Summary of the Invention

[0005] The present invention aims to solve one of the technical problems existing in the prior art or related technologies.

[0006] Therefore, the technical solution adopted in this invention is as follows: The prefabricated external shear wall assembly includes a wall clamping mechanism, an auxiliary pressurizing mechanism, a prefabricated shear wall assembly, embedded steel reinforcement components, and a concrete pouring cavity assembly. The wall clamping mechanism includes a sealing plate and a support member, and a pushing assembly installed outside the support member. The auxiliary pressurizing mechanism is inserted into the sealing plate. The prefabricated shear wall assembly includes a main wall assembly, an auxiliary wall assembly located on one side outside the main wall assembly, and a window frame wall assembly located outside the auxiliary wall assembly. The embedded steel reinforcement components are embedded in a cement foundation. The concrete pouring cavity assembly includes a ground pouring cavity built into the bottom of the main wall assembly, a lateral pouring cavity opened on the outside of the main wall assembly, and a pouring opening built into the main wall assembly.

[0007] By adopting the above technical solution, during use, operators need to pre-determine the dimensions of the main wall assembly, auxiliary wall assembly, and window frame wall assembly according to the required dimensions of the shear walls to be installed on the cement foundation. Then, a crane is used to move the main wall assembly, auxiliary wall assembly, and window frame wall assembly to the designated positions on the cement foundation. Next, the pre-embedded steel reinforcement components are used to interlock and constrain the main wall assembly, auxiliary wall assembly, and window frame wall assembly. Then, the sealing plates within the wall clamping mechanism are used to seal the gaps between adjacent main wall assemblies, auxiliary wall assemblies, and between auxiliary wall assemblies and window frame wall assemblies. Finally, concrete and filler are sequentially filled into the lateral pouring cavity and the ground pouring cavity. In a preferred embodiment, the present invention may be further configured such that the wall clamping mechanism further includes a transmission rod movably mounted within the propulsion assembly, a constraint base mounted on the outer side of the propulsion assembly, and a pressurization assembly movably mounted on the propulsion assembly.

[0008] By adopting the above technical solution, by installing a constraint base on the outside of the propulsion assembly and using the cable on the inside of the constraint base to constrain the pressure block, it is possible for workers to easily control the fixation of the propulsion assembly to the cement foundation.

[0009] In a preferred embodiment, the invention may be further configured such that the pressurization assembly also includes a pressure block inserted into the propulsion assembly via a crossbar and a tension spring connecting the propulsion assembly and the pressure block.

[0010] By adopting the above technical solution, by adding a pressure boosting assembly outside the propulsion assembly, and by using the tension spring inside the pressure boosting assembly to pull the pressure block inward, the rectangular block at the bottom of the pressure block can apply sufficient frictional resistance to the cement foundation and improve the stability of the sealing plate.

[0011] In a preferred embodiment, the present invention may be further configured such that the auxiliary pressurization mechanism includes a pin inserted into the external slot of the sealing plate, a screw sleeved in the pin, and a nut threaded onto the screw.

[0012] By adopting the above technical solution, a pin is inserted into the groove outside the sealing plate, and a screw is inserted into the pin. The control nut is used to clamp and limit the top of the sealing plate on both sides of the shear wall to the top of the shear wall gap, thereby preventing concrete loss.

[0013] In a preferred embodiment, the present invention may be further configured such that the main wall assembly further includes a concrete wall, transverse tension bars installed in the concrete wall, vertical reinforcing bars located inside the transverse tension bars, and reinforcing rings connected to the transverse tension bars and vertical reinforcing bars by tie wires.

[0014] By adopting the above technical solution, the transverse tension reinforcement is set in a U-shape, and two adjacent transverse tension reinforcements form a rectangular ring-shaped reinforcement end. At this time, when assembling the auxiliary wall assembly and the window frame wall assembly, the reinforcement ends on both sides of the auxiliary wall assembly are used to match and connect the transverse tension reinforcement and the external reinforcement ends of the window frame wall assembly, thereby reducing the erection of the external reinforcement cage and greatly reducing the excessive use of reinforcement.

[0015] In a preferred embodiment, the present invention may be further configured such that the pre-embedded steel reinforcement assembly uses reinforcing bars with a diameter of 20 millimeters.

[0016] By adopting the above technical solution, the pre-embedded steel reinforcement components are made of reinforcing bars with a diameter of 20 mm and are placed in the ground casting cavity at the bottom of the main wall assembly, auxiliary wall assembly and window frame wall assembly. At the same time, the pre-embedded steel reinforcement components are set on the inner side of the steel bar ends between two adjacent shear wall gaps, so that the pre-embedded steel reinforcement components can maintain the overall stability of the prefabricated shear wall structure.

[0017] In a preferred embodiment, the present invention may be further configured such that the cavities opened on the outer sides and bottom of the auxiliary wall assembly and the window frame wall assembly are the same size as the lateral casting cavity and the ground casting cavity, and the ends of the reinforcing bars of the auxiliary wall assembly extending to the outer sides are lower than the ends of the reinforcing bars of the main wall assembly and the window frame wall assembly.

[0018] By adopting the above technical solution, lateral pouring cavities and ground pouring cavities are opened on both sides and the bottom of the main wall assembly, auxiliary wall assembly, and window frame wall assembly. After the main wall assembly, auxiliary wall assembly, and window frame wall assembly are connected to the cement foundation, the ground pouring cavities are used to connect the pre-embedded steel reinforcement components and the outer sides of adjacent main wall assemblies, auxiliary wall assemblies, and window frame wall assemblies. This allows operators to quickly pour concrete and filler, greatly improving the efficiency of workers.

[0019] In a preferred embodiment, the present invention may be further configured such that the support member is composed of an inclined long tube, an inclined short tube, and a horizontal limiting member, wherein the inclined short tube is half the length of the inclined long tube.

[0020] By adopting the above technical solution, the support component is composed of an inclined long tube, an inclined short tube, and a horizontal limiting component. The angle between the inclined long tube and the inclined short tube is 120 degrees, which can make the force on the outside of the sealing plate uniform.

[0021] In a preferred embodiment, the present invention can be further configured such that: the transmission rod has three gears on its exterior, the gears on the exterior of the transmission rod are adapted to be inserted into the inner cavity of the horizontal limiting member, and the gears on the exterior of the transmission rod mesh with the rack inside the horizontal limiting member.

[0022] By adopting the above technical solution, a transmission rod is movably installed in the inner cavity of the propulsion assembly. At the same time, the three gears on the outside of the transmission rod mesh with the racks in the inner cavities of the three support members. When the transmission rod is rotated, the support members will apply a pushing force to the sealing plate and apply pressure to the shear wall.

[0023] In a preferred embodiment, the present invention may be further configured such that: the pressure block is made of a metal inner plate and a rubber outer layer, and a rectangular locking protrusion is provided at the bottom end of the pressure block to enhance the friction of the cement foundation surface.

[0024] By adopting the above technical solution, the pressure block is made of a metal inner plate and a rubber outer plate, and the bottom end of the pressure block is made into a rectangular protruding block. When subjected to the inward pulling force of the tension spring, the bottom end of the pressure block will apply a sufficiently strong pressure to the surface of the cement foundation, thereby improving the stability of the device on the ground.

[0025] By adopting the above technical solution, the beneficial effects achieved by the present invention are as follows: 1. In this invention, as described above, when installing precast shear walls, it is necessary to manually tie the reinforcing bars pre-reserved on the cement foundation to adapt to the current shear wall structure for concrete pouring at the wall joints. However, due to the influence of the tying wire, the center of gravity of the pre-tied reinforcing bar cage may shift, making it difficult to connect the reinforcing bar cage with the outer reinforcing bars of two adjacent shear walls. Therefore, by setting up independent main wall assembly, auxiliary wall assembly, and window frame wall assembly, and setting horizontal tension reinforcing bars and vertical reinforcing bars in the concrete wall, and using reinforcing bar rings to fix the horizontal tension reinforcing bars and vertical reinforcing bars, the horizontal tension reinforcing bars extending to both sides of the outside of the concrete wall will be adapted to the reinforcing bar ends outside the auxiliary wall assembly. The pre-embedded reinforcing bar assemblies embedded in the cement foundation are used to insert the reinforcing bar ends of the main wall assembly and auxiliary wall assembly that are adapted to each other at the wall joints, thereby improving the efficiency of pouring cement at the wall joints of the two shear walls, and thus greatly improving the consistency of the two adjacent shear walls on the horizontal line.

[0026] 2. In this invention, as described above, the current method of connecting the wall joints between shear walls is to use pre-reserved steel bars on the outside of the shear walls and a steel cage erected between the wall joints, and then pour cement into the steel cage to achieve stability between the two shear walls. This process requires a lot of manual time to erect the steel cage and consumes a large amount of steel bars. Therefore, by opening pre-reserved pouring cavities on both sides of the main wall assembly, auxiliary wall assembly, and window frame wall assembly, and by setting up ground pouring cavities and lateral pouring cavities, the end of the grouting machine is inserted into the pouring opening, and the ground pouring cavity is filled with filler material, while the lateral pouring cavity is filled with concrete to improve the strength of the concrete at the wall joint between the two shear walls after molding, thereby greatly improving the utilization rate of steel bar resources and improving the efficiency of manual work.

[0027] 3. In this invention, as described above, since the joint between two shear walls currently requires an external formwork to seal the joint, conventional formwork requires steel clamps or pressure-boosting supports to apply pressure to the formwork. Then, concrete is filled into the steel cage inside the mesh formwork. During this process, the external formwork needs to be fixed with external force. When the pressure applied to the external formwork is uneven, the poured concrete will leak. Therefore, by setting up a propulsion assembly and installing a transmission rod and support within the propulsion assembly, and installing a sealing plate at the outer end of the support, the transmission rod controls the support to push the sealing plate to seal the joint between the two precast shear walls. The pressure block and tension spring grip the ground, thereby ensuring that the sealing plate between the two shear wall joints is subjected to uniform force, thus preventing concrete leakage. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of a structure according to an embodiment of the present invention; Figure 2 This is a side view of the structure according to an embodiment of the present invention; Figure 3 This is one embodiment of the present invention. Figure 1 A partial structural diagram; Figure 4 This is one embodiment of the present invention. Figure 3 A schematic diagram of the dispersed structure; Figure 5 This is one embodiment of the present invention. Figure 4 A schematic diagram of the localized dispersed structure; Figure 6 This is one embodiment of the present invention. Figure 4 A schematic diagram of the internal dispersed structure; Figure 7 This is one embodiment of the present invention. Figure 6 A partial upward-view structural diagram; Figure 8 This is one embodiment of the present invention. Figure 2A partial top-view structural schematic diagram; Figure 9 This is one embodiment of the present invention. Figure 8 A schematic diagram of the dispersed structure; Figure 10 This is one embodiment of the present invention. Figure 9 A schematic diagram of the internal dispersed structure; Figure 11 This is one embodiment of the present invention. Figure 10 A schematic diagram of a partial cross-sectional structure.

[0029] Figure label: 100. Wall clamping mechanism; 110. Pushing assembly; 120. Transmission rod; 130. Support component; 140. Sealing plate; 150. Constraint base; 160. Pressurization assembly; 161. Pressure block; 162. Tension spring; 200. Auxiliary pressurization mechanism; 210. Pin; 220. Screw; 230. Nut; 300. Precast shear wall structure; 310. Main wall assembly; 320. Auxiliary wall assembly; 330. Window frame wall assembly; 311. Concrete wall; 312. Horizontal tensile reinforcement; 313. Vertical reinforcing reinforcement; 314. Reinforcing ring; 400. Embedded steel reinforcement components; 500. Concrete pouring cavity assembly; 510. Ground pouring cavity; 520. Lateral pouring cavity; 530. Pouring opening. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features described herein can be combined with each other.

[0031] It should be understood that these descriptions are merely exemplary and are not intended to limit the scope of the invention.

[0032] The following describes, with reference to the accompanying drawings, some embodiments of the prefabricated external shear wall provided by the present invention.

[0033] Example 1: Combination Figure 5 , 6As shown in Figures 7, 10, and 11, the prefabricated external shear wall provided by the present invention includes a wall clamping mechanism 100, an auxiliary pressurizing mechanism 200, a prefabricated shear wall mechanism 300, a pre-embedded steel reinforcement assembly 400, and a concrete pouring cavity assembly 500. The auxiliary pressurizing mechanism 200 is inserted into the wall clamping mechanism 100, and the wall clamping mechanism 100 is located outside the prefabricated shear wall mechanism 300. The pre-embedded steel reinforcement assembly 400 is pre-embedded in the cement foundation. In addition, the concrete pouring cavity assembly 500 is built into the prefabricated shear wall mechanism 300.

[0034] The wall clamping mechanism 100 includes a pushing assembly 110, a transmission rod 120, a support member 130, a sealing plate 140, a constraint base 150, and a pressurizing assembly 160. The pressurizing assembly 160 also includes a pressure block 161 and a tension spring 162. The auxiliary pressurizing mechanism 200 includes a pin 210, a screw 220, and a nut 230. The precast shear wall mechanism 300 includes a main wall assembly 310, an auxiliary wall assembly 320, and a window frame wall assembly 330. The main wall assembly 310 also includes a concrete wall 311, a transverse tensile steel bar 312, a vertical reinforcing steel bar 313, and a steel bar ring 314. The concrete pouring cavity assembly 500 includes a ground pouring cavity 510, a lateral pouring cavity 520, and a pouring opening 530.

[0035] Specifically, the wall clamping mechanism 100 includes a sealing plate 140 and a support member 130, an advancing assembly 110 installed outside the support member 130, and an auxiliary pressurizing mechanism 200 inserted into the sealing plate 140. The precast shear wall mechanism 300 includes a main wall assembly 310, an auxiliary wall assembly 320 located on one side outside the main wall assembly 310, and a window frame wall assembly 330 located outside the auxiliary wall assembly 320. The embedded steel reinforcement assembly 400 is embedded in the cement foundation. The concrete pouring cavity assembly 500 includes a ground pouring cavity 510 built into the bottom of the main wall assembly 310, a lateral pouring cavity 520 opened on the outside of the main wall assembly 310, and a window frame wall assembly 330 built into the main wall assembly 310. The main wall assembly 310, auxiliary wall assembly 320, and window frame wall assembly 330 are moved to designated positions on the cement foundation using a crane. Then, pre-embedded steel reinforcement components 400 are used to interlock and constrain the main wall assembly 310, auxiliary wall assembly 320, and window frame wall assembly 330. Next, sealing plates 140 within the wall clamping mechanism 100 are used to seal the gaps between adjacent main wall assemblies 310 and auxiliary wall assemblies 320, as well as between auxiliary wall assemblies 320 and window frame wall assemblies 330. Finally, concrete and filler are sequentially filled into the lateral pouring cavity 520 and the ground pouring cavity 510. Example 2: Combination Figure 6As shown, in the above embodiment, the pressure block 161 is constrained by the cable inside the constraint base 150, which facilitates the worker's control of the propulsion assembly 110 to fix the cement foundation. The angle between the inclined long tube and the inclined short tube is 120 degrees, ensuring uniform force distribution on the sealing plate 140. The meshing of three gears on the outside of the transmission rod 120 with the racks inside the three support members 130 causes the support members 130 to apply a pushing force to the sealing plate 140 and pressure to the shear wall when the transmission rod 120 is rotated. Simultaneously, the bottom end of the pressure block 161 is made into a rectangular protrusion. When subjected to the inward pulling force of the tension spring 162, the bottom end of the pressure block 161 applies sufficient pressure to the surface of the cement foundation, thereby improving the device's performance. For stability on the ground, the wall clamping mechanism 100 also includes a transmission rod 120 movably installed in the propulsion assembly 110, a constraint base 150 installed on the outside of the propulsion assembly 110, and a pressurizing assembly 160 movably installed on the propulsion assembly 110. The support member 130 is composed of an inclined long tube, an inclined short tube, and a horizontal limiting member, and the inclined short tube is half the length of the inclined long tube. The transmission rod 120 has three gears on its outside. The gears on the outside of the transmission rod 120 are adapted to be inserted into the inner cavity of the horizontal limiting member, and the gears on the outside of the transmission rod 120 mesh with the rack inside the horizontal limiting member. The pressure block 161 is made of a metal inner plate and a rubber outer layer, and the bottom end of the pressure block 161 has a rectangular locking protrusion for enhancing the friction of the cement foundation surface.

[0036] Example 3: Combination Figure 7 As shown, in the above embodiment, the pressure block 161 is pulled inward by the tension spring 162 in the pressure boosting assembly 160, so that the rectangular block at the bottom of the pressure block 161 can apply sufficient frictional resistance to the cement foundation and improve the stability of the sealing plate 140. The pressure boosting assembly 160 also includes the pressure block 161 inserted into the propulsion assembly 110 by a crossbar and the tension spring 162 connecting the propulsion assembly 110 and the pressure block 161.

[0037] Example 4: Combination Figure 5 As shown, in the above embodiment, a screw 220 is inserted into the pin 210, and a control nut 230 is used to clamp and limit the top of the sealing plate 140 located on both sides of the shear wall to the top of the shear wall gap, thereby preventing concrete loss. The auxiliary pressure mechanism 200 includes a pin 210 inserted into the slot outside the sealing plate 140, a screw 220 sleeved in the pin 210, and a nut 230 threadedly connected to the screw 220.

[0038] Example 5: Combination Figure 8 and 10As shown, in the above embodiment, two adjacent transverse tension bars 312 are used to form a rectangular ring-shaped steel bar end. When assembling the auxiliary wall assembly 320 and the window frame wall assembly 330, the steel bar ends on both sides of the auxiliary wall assembly 320 are used to adapt and connect the transverse tension bars 312 and the external steel bar ends of the window frame wall assembly 330. This reduces the need for external steel cages and significantly reduces the excessive use of steel bars. After the main wall assembly 310, auxiliary wall assembly 320, and window frame wall assembly 330 are connected to the cement foundation, the ground pouring cavity 510 is used to connect the pre-embedded steel bar components 400, and the adjacent main wall assembly 310, auxiliary wall assembly 320, and window frame wall assembly 330 are connected. The external connection allows operators to quickly pour concrete and filler, greatly improving worker efficiency. The main wall assembly 310 also includes a concrete wall 311, a transverse tension steel bar 312 installed in the concrete wall 311, a vertical reinforcing steel bar 313 located inside the transverse tension steel bar 312, and a steel ring 314 connected to the transverse tension steel bar 312 and the vertical reinforcing steel bar 313 by tie wire. The cavities opened on the outer sides and bottom of the auxiliary wall assembly 320 and the window frame wall assembly 330 are the same size as the lateral pouring cavity 520 and the ground pouring cavity 510, and the steel bar ends of the auxiliary wall assembly 320 extending to the outer sides are lower than the outer steel bar ends of the main wall assembly 310 and the window frame wall assembly 330.

[0039] Example 6: Combination Figure 9 and 10 As shown, in the above embodiment, the pre-embedded steel reinforcement assembly 400 is set in the ground pouring cavity 510 at the bottom of the main wall assembly 310, the auxiliary wall assembly 320 and the window frame wall assembly 330. At the same time, the pre-embedded steel reinforcement assembly 400 is set on the inner side of the steel reinforcement end between two adjacent shear wall gaps, so that the pre-embedded steel reinforcement assembly 400 can maintain the overall stability of the prefabricated shear wall mechanism 300. The pre-embedded steel reinforcement assembly 400 uses a reinforcing bar with a diameter of 20 mm.

[0040] Working principle and usage process of this invention: Before use: Currently, before the installation of precast shear walls, it is necessary to manually install the steel cage at the designated measurement position between the two shear wall placement points. Then, during the placement of the shear walls, the pre-tied steel cage is used to connect the steel bars on the outside of the two shear walls. The steel cage and the shear wall are connected by tie wire. Then, the gap between the two shear walls is sealed with external formwork and filled with concrete. Then, the inside of the shear wall is filled with sealing agent. This process requires manual labor time to construct the steel cage, and the center of gravity of the steel cage is prone to shift. Before use: Following the steps above, by setting up interconnectable main wall assembly 310, auxiliary wall assembly 320, and window frame wall assembly 330, and installing horizontal tension bars 312, vertical reinforcing bars 313, and reinforcing rings 314 inside the concrete wall 311, the overall strength of the concrete wall 311 is enhanced. Simultaneously, by utilizing the matching connections of the reinforcing bar ends extending to the outer sides of the main wall assembly 310, auxiliary wall assembly 320, and window frame wall assembly 330, the reinforcing bar ends on the outer sides of the auxiliary wall assembly 320 are connected to the main wall... With the adaptation of the combination 310 and the window frame wall combination 330, the sealing plate 140 is used to seal the gap between the two adjacent shear walls. Since the main wall combination 310, the auxiliary wall combination 320 and the window frame wall combination 330 are all provided with ground pouring cavity 510, lateral pouring cavity 520 and pouring opening 530 on the outside and bottom, when filling concrete and sealing agent, the adjacent main wall combination 310, auxiliary wall combination 320 and window frame wall combination 330 can be stably connected and fixed in the horizontal direction. In use: The operator needs to customize the main wall assembly 310, auxiliary wall assembly 320, or window frame wall assembly 330 according to the dimensions reserved on the cement foundation. Then, the two sets of pushing assemblies 110 and the sealing plate 140 are placed and fixed outside the reserved gap between the main wall assembly 310, auxiliary wall assembly 320, or auxiliary wall assembly 320 and window frame wall assembly 330. Next, the main wall assembly 310, auxiliary wall assembly 320, and window frame wall assembly 330 are placed in the designated position on the cement foundation, and the transmission rod 120 is rotated to control the support 130 to push the sealing plate 140 against the main wall assembly 310. The gaps between the main wall assembly 310, the auxiliary wall assembly 320, and the window frame wall assembly 330 are clamped. At this time, the operator needs to fill the gaps between the main wall assembly 310, the auxiliary wall assembly 320, or the auxiliary wall assembly 320 and the window frame wall assembly 330 with concrete. The concrete is poured in from above, and then the filler is filled from the pouring opening 530 into the ground pouring cavity 510 to fix the pre-embedded steel reinforcement assembly 400 to the bottom holes of the main wall assembly 310, the auxiliary wall assembly 320, and the window frame wall assembly 330. This operation allows for the rapid erection of the precast shear wall.

[0041] In this invention, the term "multiple" refers to two or more unless otherwise explicitly defined. The terms "install," "connect," "link," and "fix" should be interpreted broadly. For example, "connect" can be a fixed connection, a detachable connection, or an integral connection; "link" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0042] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0043] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A prefabricated external shear wall, characterized in that, include: The wall clamping mechanism (100) includes a sealing plate (140) and a support member (130), and a propulsion assembly (110) installed outside the support member (130). The wall clamping mechanism (100) also includes a transmission rod (120) movably installed inside the propulsion assembly (110), a constraint base (150) installed on one side outside the propulsion assembly (110), and a pressure boosting assembly (160) movably installed on the propulsion assembly (110). The pressure boosting assembly (160) also includes a pressure block (161) inserted into the propulsion assembly (110) via a crossbar and a tension spring (162) connecting the propulsion assembly (110) and the pressure block (161). The support member (130) is composed of an inclined long tube, an inclined short tube, and a horizontal limiting member, and the inclined short tube is half the length of the inclined long tube. An auxiliary pressurizing mechanism (200) is inserted into the sealing plate (140); The precast shear wall structure (300) includes a main wall assembly (310), an auxiliary wall assembly (320) located on one side outside the main wall assembly (310), and a window frame wall assembly (330) located outside the auxiliary wall assembly (320). An embedded steel reinforcement assembly (400) is embedded in a cement foundation; The concrete pouring cavity assembly (500) includes a ground pouring cavity (510) built into the bottom of the main wall assembly (310), a lateral pouring cavity (520) opened on the outside of the main wall assembly (310), and a pouring opening (530) built into the main wall assembly (310).

2. The prefabricated external shear wall according to claim 1, characterized in that, The auxiliary pressurization mechanism (200) includes a pin (210) inserted into the outer slot of the sealing plate (140), a screw (220) sleeved in the pin (210), and a nut (230) threaded onto the screw (220).

3. The prefabricated external shear wall according to claim 1, characterized in that, The main wall assembly (310) also includes a concrete wall (311), a transverse tension bar (312) installed in the concrete wall (311), a vertical reinforcing bar (313) located inside the transverse tension bar (312), and a reinforcing bar ring (314) connected to the transverse tension bar (312) and the vertical reinforcing bar (313) by tie wire.

4. The prefabricated external shear wall according to claim 1, characterized in that, The pre-embedded steel reinforcement assembly (400) uses a reinforcing bar with a diameter of 20 mm.

5. The prefabricated external shear wall according to claim 1, characterized in that, The cavities opened on the outer sides and bottom of the auxiliary wall assembly (320) and the window frame wall assembly (330) are the same size as the lateral pouring cavity (520) and the ground pouring cavity (510), and the ends of the reinforcing bars of the auxiliary wall assembly (320) extending to the outer sides are lower than the ends of the reinforcing bars of the main wall assembly (310) and the window frame wall assembly (330).

6. The prefabricated external shear wall according to claim 1, characterized in that, The transmission rod (120) has three gears on its outside. The gears on the outside of the transmission rod (120) are adapted to be inserted into the inner cavity of the horizontal limiting member, and the gears on the outside of the transmission rod (120) mesh with the rack inside the horizontal limiting member.

7. The prefabricated external shear wall according to claim 1, characterized in that, The pressure block (161) is made of a metal inner plate and a rubber outer layer, and a rectangular locking protrusion is provided at the bottom of the pressure block (161) to enhance the friction of the cement foundation surface.

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