Prefabricated building component and component assembly method

Abstract

The application provides a prefabricated component for fabricated building and a component assembling method, which comprises a base fixed on the ground through two fixing piles, and installation columns for installing fence plates are installed on the upper end of the base through embedded screw rods and nuts; two fence plates for forming a fence are clamped between every two installation columns; the application also relates to a prefabricated component assembling method for fabricated building, which comprises the following steps: step one, foundation pit excavation and base installation; step two, installation column assembly and horizontal calibration; step three, fence plate installation and extrusion fixation; and step four, top base installation and overall acceptance. Compared with the prior art, the application has the advantages that the overall assembly structure solves the disadvantages of conventional additional embedded parts, selection of high-density lightweight materials and thickened support rods, additional embedded parts are not needed, the production and construction complexity is reduced, the fence plate reduces the lateral force of wind pressure on the fence, and the wind resistance is improved.

Description

Technical Field

[0001] This invention belongs to the field of prefabricated component technology, and specifically relates to a prefabricated building component and a component assembly method. Background Technology

[0002] In the wind-resistant design of existing prefabricated fences, the cast-in-place foundation method suffers from long construction cycles and poor terrain adaptability. Furthermore, the connection between the foundation and components is prone to loosening due to settlement, leading to a rapid decline in wind resistance stability. Increasing component weight and material thickness significantly increases transportation and installation costs, reduces component flexibility, makes it difficult to adapt to complex installation scenarios, and adds additional load to the foundation. Using support poles compromises the overall aesthetics of the fence; the support poles require separate excavation and fixing, a cumbersome process, and the connection points between the poles and the fence easily become stress concentration areas, prone to loosening and detachment under long-term wind pressure. These shortcomings stem from limitations in the core design logic: the cast-in-place foundation lacks prefabrication integration, relying on on-site formwork and curing, and the connection structure with the components lacks buffer adaptation design; increasing weight and thickness is merely a simple physical resistance addition without optimizing the component cross-sectional structure and stress distribution; the support poles are post-installed structures, not integrated with the fence body, and the fixing method is simple and does not consider the dynamic effects of wind pressure.

[0003] Conventional solutions include: reinforcing connections with embedded parts during foundation pouring; using high-density lightweight materials to balance the load when increasing weight and thickness; and using thickened materials or multi-directional cross-fixing for support rods. However, these methods have significant drawbacks: embedded parts increase production and construction complexity and still cannot avoid the risk of loosening caused by foundation settlement; high-density lightweight materials are costly and technically demanding, making large-scale application difficult; thickening or cross-fixing support rods further detracts from aesthetics and increases installation and material costs; cross-joints are prone to dust and water accumulation and corrosion, which reduces overall wind resistance and durability. None of these methods fundamentally resolve the contradiction between wind-resistant design and practicality / economy. Therefore, we hope to design a prefabricated building component with a new type of structure to solve this problem. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, the purpose of this invention is to provide a prefabricated component for prefabricated buildings to solve the problems mentioned in the background art.

[0005] This invention is achieved through the following technical solution: a prefabricated component for prefabricated buildings, comprising: a base, the base being fixed to the ground by two fixed piles, an installation column for installing a fence panel being installed on the upper end of the base by pre-embedded screws and nuts, two fence panels for forming a fence being clamped between every two installation columns, a prefabricated concrete top plate being installed on the top of the installation column, a driving component being movably installed in the vertical direction at the center of the interior of the installation column, a limiting component being installed on the upper side of the top plate, and the lower end of the limiting component extending through the top plate into the interior of the installation column, and a top seat being movably inserted into the top plate at the upper end of the installation column for protecting the top plate and the top of the installation column; The mounting post also includes a column body, in the middle of which is a guide cavity with a rectangular cross-section. The middle of the left side and the middle of the right side of the column body are recessed inward to form a groove for clamping the fence panel. Multiple sliding cavities are formed between the two grooves from left to right and are perpendicularly connected to the guide cavity. The multiple sliding cavities are linearly and equidistantly distributed in the vertical direction. The uppermost sliding cavity has two pressure blocks 2 installed in mirror image on the left and right sides. All other sliding cavities have two pressure blocks 1 installed in mirror image on the left and right sides. The fence panel includes a first baffle and a second baffle. The first baffle and the second baffle are arranged in parallel. An end plate second is welded to the left and right ends of the first baffle and the second baffle. An end plate first is welded to the upper and lower ends of the first baffle and the second baffle. Multiple rows of linearly distributed air guide pipes are welded at an angle between the first baffle and the second baffle. A blocking module is rotatably installed in the middle of each air guide pipe.

[0006] In a preferred embodiment, the fixed pile includes a pile rod with a length of 1.2-1.5m. A hammer head is provided at the upper end of the pile rod, and the hammer head penetrates the pile rod downward to form a through hole. The diameter of the through hole inside the hammer head is larger than the diameter of the pile rod inside. A crossbar is welded horizontally to the top part of the through hole inside the pile rod. A rubber cover plate is movably inserted into the part of the through hole inside the hammer head. A reserved hole is provided in the middle of the rubber cover plate to facilitate subsequent disassembly. The base includes a concrete block, with insertion holes formed by penetrating downwards at the middle of the left and right ends of the concrete block. The cross-sectional structure of the insertion holes matches the cross-sectional structure of the upper part of the fixed pile. The lower end of the pile rod penetrates the concrete block through the insertion holes. The bottom of the concrete block is cut with isosceles triangular grooves evenly distributed horizontally and vertically to form multiple prisms, which facilitates quick leveling during subsequent installation. A U-shaped embedded screw is pre-embedded on the left and right sides of the middle of the concrete block. The diameter of the embedded screw is 25mm. The outer walls of the two top ends of each embedded screw are provided with external threads for use with locking nuts to assemble the column.

[0007] As a preferred embodiment, an assembly steel plate is pre-embedded at the bottom of the column. Multiple pre-embedded reinforcing bars are welded to the upper side of the assembly steel plate, and all the pre-embedded reinforcing bars are pre-embedded inside the lower end of the column. The four corners of the assembly steel plate are respectively penetrated downward to form an assembly hole for assembly with the pre-embedded screws, and the distribution position of the four assembly holes matches the distribution position of the four top ends of the two pre-embedded screws. A rectangular hole is opened downward on the left and right sides of the sliding cavity at the top of the column. The two rectangular holes penetrate all the sliding cavities from top to bottom. A 2mm thick rubber plate is provided at the bottom of each sliding groove, and the structure of the rubber plate is the same as the cross-sectional structure of the sliding groove. A limiting strip is integrally provided on the front inner wall and the rear inner wall of each sliding groove to limit the fence panel.

[0008] In a preferred embodiment, the upper side of the end of the second pressing block near the guide cavity is provided with a 60-degree angled driving slope, and the middle of the end of the driving slope near the guide cavity is formed by a semi-circular clearance notch. The upper end of the second pressing block is recessed downward to form an installation groove. The outer part of the mounting groove extends downward through the entire pressure block 2. A guide rod is pre-embedded horizontally on the upper side of the mounting groove. A spring is fitted on the outer side of the guide rod, and the inner end of the guide rod is fixed to the inner end of the spring by a spring seat. The length of the guide rod is the same as the length of the spring, and the length of the guide rod is less than the horizontal length of the mounting groove. The width of the mounting groove is greater than the overall diameter of the spring. The lower side of the outer end of the second pressing block is provided with an abutting surface. The outer side of the upper end of the abutting surface is provided with a pressing surface. The outer side of the pressing surface is integrally provided with a guide slope at a 30-degree angle. The drive assembly includes a connecting rod with multiple extrusion blocks connected in series on the connecting rod. The lower end of each extrusion block has an isosceles triangular structure, and the side of the lower end of the extrusion block closest to the two drive inclined surfaces is parallel to and slidably connected to the drive inclined surfaces. The top of the uppermost extrusion block has a pre-embedded abutment cylinder. The number of extrusion blocks is the same as the number of sliding cavities. The abutment cylinder is rotatably inserted into the lower end of the push rod.

[0009] In a preferred embodiment, the top plate is provided with a connecting groove at the middle of the left end and the middle of the right end, and the cross-sectional dimensions, structure and distribution of the connecting groove are matched with the cross-sectional dimensions, structure and distribution of the sliding groove. The four corners of the top plate are respectively connected downward to form a locking hole. Four internal threaded cylinders are pre-embedded at the four corners of the upper end of the column, and the distribution of the four internal threaded cylinders matches the distribution of the four locking holes. The left front side, left rear side, right front side, and right rear side of the top plate respectively form a positioning hole through downwards. The top surface of the top plate has two rectangular holes, one on each of the left and right sides, extending downwards. The distribution, cross-sectional dimensions, and structure of the two rectangular holes are the same as those of the two rectangular holes. The top plate has a through hole extending downwards in the middle. The top surface of the top plate has two internally threaded posts, one on each of the left and right sides, and the two internally threaded posts are placed inside the two rectangular holes. The top seat includes a seat body, and a rod is provided at each of the four corners at the lower end of the seat body. The distribution and size of the four rods are matched with the distribution and size of the four positioning holes. The bottom of the seat body is recessed upward to form a rectangular cavity, and a blind hole is pre-set in the middle of the top of the seat body for installing an external spray water pipe and spray head.

[0010] In a preferred embodiment, the limiting component includes a horizontal plate, and a strip-shaped limiting plate is welded to the lower left and lower right sides of the horizontal plate. The width of the limiting plate matches the width of the mounting groove, and the two limiting plates vertically penetrate two pressure blocks 2 and multiple pressure blocks 1 downwards. The two limiting plates pass through multiple waist holes that are linearly distributed in the vertical direction from left to right. The number of waist holes is the same as the number of guide rods, and the width of the waist holes matches the diameter of the guide rods. The two limiting plates are slidably connected to multiple guide rods through the waist holes and are in movable contact with multiple springs. The two limiting plates pass through the top plate through rectangular hole one and are inserted into the column through rectangular hole two. A fastening hole is formed by penetrating downwards on the left and right sides of the upper surface of the horizontal plate. The axes of the two fastening holes are collinear with the axes of the two internal threaded columns. A threaded tube is welded in the middle of the upper surface of the horizontal plate, and a push rod is threadedly connected to the upper side of the threaded tube. A handle is welded laterally to the upper end of the push rod. The length of the handle is less than the minimum side length of the rectangular cavity. The axis of the threaded tube is collinear with the axis of the through hole.

[0011] In a preferred embodiment, the end plate one extends outward by 2cm from the side near the baffle one, the side of the end plate one near the baffle two is flush with the outer wall of the baffle two, the side of the end plate two near the baffle one extends outward by 3cm, and the side of the end plate two near the baffle two extends outward by 3cm. The width of the baffle plate 2 matches the cross-sectional width of the chute. Multiple equally spaced waist holes 2 are formed on the upper surface of the end plate 1 located on the upper side of the fence plate. Multiple short screws are welded on the lower surface of the end plate located on the lower side of the fence plate. The number and distribution position of the short screws match the number and distribution position of the waist holes 2. The air guide duct is welded at a 60-degree angle between baffle one and baffle two, and the air guide duct passes through baffle one and baffle two. The side of the air guide duct near baffle one is flush with the outer wall of baffle one, and the side of the air guide duct near baffle two is flush with the outer wall of baffle two. The inner diameter of the air guide duct is 2-3cm, and the height of the end of the air guide duct near baffle two is lower than the height of the end of the air guide duct near baffle one. The blocking module includes a circular plate. The two ends of the circular plate near the inner wall of the air duct are rotatably installed inside the air duct through a fixed rod. The inner diameter of the air duct is larger than the diameter of the circular plate. The two ends of the circular plate near the two fixed rods are provided with two mating holes for rotatable connection with the fixed rods. The two fixed rods are fixedly connected to the air duct.

[0012] This invention also relates to a method for assembling prefabricated components for prefabricated buildings, comprising the following steps: Step 1: Excavation of the foundation pit and installation of the foundation; Before construction, based on the design direction of the fence, lime powder was used to mark the installation baseline on the construction site, and the straightness deviation of the baseline was controlled within ±5mm / 5m. Excavate the foundation pit along the baseline. The depth of the foundation pit is four-fifths of the height of the base (i.e., 160mm, the height of the base is 200mm), and the width is 5cm greater than the width of the base. The bottom of the foundation pit is compacted using a frog-type rammer, and the compaction density is ≥1.8g / cm³ to ensure that the bearing capacity of the foundation meets the requirements. The precast concrete base is hoisted into the foundation pit, and the insertion holes of the base are aligned with the baseline. Then, a hydraulic pile hammer is used to align the fixed pile with the insertion hole and hammer it downward from the hammer head until the lower end of the pile rod is inserted into the underground stable layer (insertion depth ≥1.2m). During the hammering process, the hammering force is controlled to avoid bending and deformation of the pile rod. After the fixed pile is installed, remove the rubber cover plate inside the hammer head and check the verticality of the pile rod through the crossbar in the through hole. The verticality deviation should be controlled within ±2mm / m. Then, replace the rubber cover plate with the reserved hole facing upwards to facilitate subsequent disassembly and maintenance. The levelness of the upper surface of the base is measured using a spirit level. If there is a deviation, the depth of the fixed pile at the corresponding position is finely adjusted by using a hydraulic pile hammer. The base is then quickly leveled using the ridge blocks at the bottom. The final levelness deviation is ≤3mm / m. The base installation spacing is set to 600mm based on the length of the fence panel (matching the width of the fence panel), and the deviation between adjacent bases is ≤±10mm. Step 2: Install column assembly and leveling; A small crane was used to lift the prefabricated installation column. During the lifting process, soft slings were used to wrap the middle of the installation column to avoid bumping the edges and corners. Adjust the posture of the mounting column so that the four mounting holes of the bottom mounting steel plate are aligned with the four top ends of the pre-embedded screws on the base. Slowly lower the mounting column until the mounting steel plate is in contact with the upper surface of the base for 5cm. A 2cm thick nitrile rubber rectangular plate (with the same size as the assembly steel plate) is laid between the assembly steel plate and the base. The rubber plate has pre-drilled through holes corresponding to the pre-embedded screws, which serve as a buffer and shock absorber, and also facilitate fine-tuning of the level of the installation column. Continue lowering the installation column so that the pre-embedded screw passes through the rubber plate and the assembly hole. Install flat washers and spring washers on the pre-embedded screw on the upper side of the assembly steel plate, and then tighten the M24 lock nut. Control the tightening torque at 80-100 N·m to ensure a firm connection. Use a spirit level again to measure the verticality of the installation column (both front and back, left and right directions). The verticality deviation should be ≤3mm / m. If there is a deviation, make minor adjustments by adjusting the compression of the rubber plate or the tightness of the nut until the requirements are met. Step 3: Installation and clamping of the fence panels; Manually insert the fence panels slowly from top to bottom along the groove of the mounting post, inserting two fence panels at a time (located in the groove on the left and right sides of the mounting post respectively). The limiting strip is embedded in the edge gap of end plate one and end plate two to achieve initial limiting. Install all fence panels in this way, aligning the end plates of adjacent fence panels with a gap ≤2mm. Place the top plate on the top of the column, aligning the locking hole of the top plate with the internal threaded cylinder of the column. Secure the top plate to the top of the column with M12 bolts, controlling the tightening torque to 30-40 N·m. Insert the two limiting plates of the limiting assembly through the rectangular hole two of the top plate and the rectangular hole one of the column into the inside of the column, so that the waist hole one on the limiting plate corresponds to the guide rod of the pressing block one and the pressing block two, and the spring is in a natural extension and contraction state. Align the fastening holes of the horizontal plate with the internal threaded post on the top plate, and fix the horizontal plate to the upper surface of the top plate with M12 bolts. At this time, the abutment cylinder at the lower end of the push rod is rotatably inserted into the abutment cylinder of the drive assembly. The operator holds the handle at the top of the push rod and rotates the push rod clockwise. The threaded transmission of the threaded tube causes the push rod to apply downward pressure. The push rod pushes the connecting rod of the drive assembly to move downward along the guide cavity. The connecting rod drives multiple extrusion blocks to move downward synchronously. The topmost pressing block first contacts the driving inclined surface of the second pressing block. As the pressing block continues to move downward, the 60-degree angled inclined surfaces interact to generate a lateral thrust, pushing the two second pressing blocks to move outward synchronously. The spring is compressed, and the guide inclined surface of the second pressing block first adheres to the end plate one at the top of the top side fence panel. Under the guidance of the guide inclined surface, the rubber plate at the bottom of the chute is squeezed and deformed, so that the pressing surface on the continuously moving second pressing block presses against the upper side of the end plate one. At the same time, multiple first pressing blocks move out synchronously and fit tightly against the end plate two, generating a horizontal pressing force (pressing force ≥ 500N), achieving horizontal pressing limit on all fence panels, ensuring that the fence panels are not loose and the splicing gap is ≤ 1mm. After the top rod rotates to the point where it can no longer move down, it stops rotating. At this time, the waist hole of the limiting component limits the maximum displacement of the guide rod to prevent the pressure block from excessively squeezing and damaging the fence panel. Step 4: Installation of the top mount and overall acceptance; Manually move the top seat to the top of the column, align the four insert rods at the bottom of the top seat with the positioning holes on the top plate, and slowly lower the top seat. After the insert rods are inserted into the positioning holes, the top seat is stably placed on the top plate under its own weight. The rectangular cavity completely accommodates the handle without affecting the overall aesthetics. Check that the top bracket is installed flat and free from any tilting or looseness; then conduct a comprehensive inspection of the entire fence structure, including the fence straightness (≤5mm / 5m), verticality (≤3mm / m), and the firmness of each connection (no looseness or abnormal noise), etc. After acceptance, spray pipes and spray heads can be installed through the blind holes of the top seat to achieve additional dust suppression function, and the entire fence structure is now installed.

[0013] After adopting the above technical solution, the beneficial effects of the present invention are: 1. It solves the problems of long construction cycle and poor terrain adaptability of existing cast-in-place foundations. The precast concrete base does not require on-site formwork and curing. The excavation depth of the foundation pit is only four-fifths of the base height. With the bottom edge blocks, it can be quickly leveled and adapt to different terrains. The fixed piles are inserted and matched with the base, replacing the on-site cast-in-place embedded parts. The installation time is shortened. In addition, the rubber plate buffers the stress caused by foundation settlement, avoids loosening of the connection, and reduces the rate of wind resistance stability decay. The installation columns, drive components, and limit components solve the problems of increased transportation and installation costs and reduced flexibility caused by increasing component weight and material thickness. The installation columns are made of precast concrete and the fence panels are fixed by mechanical compression of the drive components and the pressure blocks. There is no need to add extra component weight or thickness. The weight of a single installation column is lighter than that of traditional thickened components, reducing transportation costs. At the same time, the compression fixing method is compatible with fence panels of different sizes, improving installation adaptability in complex terrain scenarios and reducing the foundation bearing load. The integrated assembly structure solves the drawbacks of conventional methods that require additional embedded parts, high-density lightweight materials, and thickened support rods. It eliminates the need for additional embedded parts, reducing production and construction complexity. It also eliminates the need for high-density lightweight materials, reducing material costs and allowing for large-scale application. Furthermore, it eliminates the need for thickened or cross-fixed support rods, further reducing installation and material costs. It resolves the contradiction between wind-resistant design and practicality and economy, achieving a comprehensive effect of low cost, high wind resistance, easy installation, and good aesthetics. The entire structure can be disassembled and reused.

[0014] 2. The fence panel solves the problems of aesthetic degradation, cumbersome installation process, and stress concentration at connection points caused by the use of support rods. The air ducts are distributed at a 60-degree angle. When wind is applied, the airflow passes through the air ducts to create a guiding effect, reducing the lateral force of wind pressure on the fence and improving wind resistance. The circular plate of the blocking module rotates with the airflow, which can adjust the ventilation volume according to the wind speed and prevent strong winds from directly impacting the fence panel. The stress concentration at connection points is eliminated, eliminating the need for additional support rods. The overall aesthetics of the fence are not affected, the installation process is reduced, and the problems of dust, water accumulation, and corrosion at the intersections of support rods are avoided, thus improving the overall wind resistance and durability. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall structure of a prefabricated component for assembled buildings according to the present invention.

[0017] Figure 2 This is a schematic diagram of the top support structure of a prefabricated component for assembled buildings according to the present invention.

[0018] Figure 3 This is a schematic diagram of a limiting component structure for prefabricated components of assembled buildings according to the present invention.

[0019] Figure 4 This is a schematic diagram of the base structure of a prefabricated component for assembled buildings according to the present invention.

[0020] Figure 5 This is a schematic diagram of the driving component structure of a prefabricated building component according to the present invention.

[0021] Figure 6 This is a schematic diagram of the two-dimensional structure of the pressure block of a prefabricated component for prefabricated buildings according to the present invention.

[0022] Figure 7This is a schematic diagram of the lower structure of the top seat of a prefabricated component for prefabricated buildings according to the present invention.

[0023] Figure 8 This is a schematic diagram of the connection structure between the column and the top slab of a prefabricated component for assembled buildings according to the present invention.

[0024] Figure 9 This is a schematic diagram of the cross-sectional structure of the connection between the column and the top plate of a prefabricated component for assembled buildings according to the present invention.

[0025] Figure 10 This is a schematic diagram of a cross-sectional view of the pressure block of a prefabricated component for assembled buildings according to the present invention.

[0026] Figure 11 This is a schematic diagram of the two-section structure of the pressure block of a prefabricated component for assembled buildings according to the present invention.

[0027] Figure 12 This is a schematic diagram of the cross-sectional structure of a fence panel of a prefabricated building component according to the present invention.

[0028] Figure 13 for Figure 12 A schematic diagram of the enlarged structure at point A in the middle.

[0029] Figure 14 This is a schematic diagram of a blocking module structure for a prefabricated component of an assembled building according to the present invention.

[0030] Figure 15 This is a schematic diagram of a fixed pile structure for a prefabricated component of an assembled building according to the present invention.

[0031] In the diagram, 100 represents a fixed pile; 110 represents a pile pole; and 120 represents a horizontal bar. 200, base; 210, embedded bolt; 220, concrete block; 221, insertion hole; 230, edge block; 300, Mounting post; 310, Pressing block one; 320, Pressing block two; 321, Driving ramp; 322, Clearance notch; 323, Mounting groove; 324, Spring; 325, Guide rod; 326, Abutment surface; 327, Guide ramp; 328, Pressing surface; 330, Post; 331, Slide groove; 332, Limiting strip; 333, Slide cavity; 334, Guide cavity; 335, Rectangular hole one; 400, top plate; 410, locking hole; 420, positioning hole; 430, through hole; 440, internal threaded post; 450, rectangular hole two; 500, Limiting component; 510, Limiting plate; 511, Waist hole one; 520, Horizontal plate; 521, Fastening hole; 530, Top rod; 540, Threaded tube; 600, drive assembly; 610, abutment cylinder; 620, connecting rod; 630, extrusion block; 700, top seat; 710, insertion rod; 720, seat body; 721, rectangular cavity; 730, blind hole; 800, fence panel; 810, end plate one; 811, waist hole two; 812, short screw; 820, end plate two; 830, air duct; 840, baffle one; 850, baffle two; 860, blocking module; 861, fixing rod; 862, round plate; 863, docking hole. Detailed Implementation

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] As the first embodiment of the present invention: Please see Figures 1 to 15 A prefabricated component for prefabricated buildings includes: a base 200, which is fixed to the ground by two fixing piles 100; an installation column 300 for installing a fence panel 800 is installed on the upper end of the base 200 by pre-embedded screws 210 and nuts; two fence panels 800 for forming a fence are clamped between every two installation columns 300; a precast concrete top plate 400 is installed on the top of the installation column 300; a drive assembly 600 is movably installed in the vertical direction at the center of the interior of the installation column 300; a limit assembly 500 is installed on the upper side of the top plate 400, and the lower end of the limit assembly 500 extends through the top plate 400 into the interior of the installation column 300; and a top seat 700 is movably inserted into the top of the installation column 300 through the top plate 400 to protect the top of the top plate 400 and the top of the installation column 300. The mounting post 300 also includes a post body 330. A guide cavity 334 with a rectangular cross-section is provided in the middle of the post body 330. The middle of the left side and the middle of the right side of the post body 330 are respectively recessed to form a sliding groove 331 for clamping the fence panel 800. Multiple sliding cavities 333 are formed by passing through the two sliding grooves 331 from left to right and are perpendicularly connected to the guide cavity 334. The multiple sliding cavities 333 are linearly and equidistantly distributed in the vertical direction. Two pressure blocks 320 are mirror-slidably installed on the left and right sides of the uppermost sliding cavity 333. Two pressure blocks 310 are mirror-slidably installed on the left and right sides of all other sliding cavities 333. The fence panel 800 includes a first baffle 840 and a second baffle 850. The first baffle 840 and the second baffle 850 are arranged in parallel. An end plate 820 is welded to the left and right ends of the first baffle 840 and the second baffle 850 respectively. An end plate 810 is welded to the upper and lower ends of the first baffle 840 and the second baffle 850 respectively. Multiple rows of linearly distributed air guide pipes 830 are welded at an angle between the first baffle 840 and the second baffle 850, and a blocking module 860 is rotatably installed in the middle of each air guide pipe 830.

[0034] The fixed pile 100 includes a pile rod 110, which is 1.2-1.5m long. A hammer head is provided at the upper end of the pile rod 110. The hammer head penetrates the pile rod 110 downward to form a through hole. The diameter of the through hole inside the hammer head is larger than the diameter of the inside of the pile rod 110. A crossbar 120 is welded horizontally to the top part of the through hole inside the pile rod 110. A rubber cover plate is movably inserted into the part of the through hole inside the hammer head. A reserved hole is provided in the middle of the rubber cover plate to facilitate subsequent disassembly. The base 200 includes a concrete block 220. The middle of the left end and the middle of the right end of the concrete block 220 are respectively formed by inserting holes 221. The cross-sectional structure of the inserting hole 221 matches the cross-sectional structure of the upper part of the fixed pile 100. The lower end of the pile rod 110 passes through the concrete block 220 through the inserting hole 221. The bottom of the concrete block 220 is cut into multiple prisms 230 by isosceles triangular grooves evenly distributed horizontally and vertically to facilitate quick leveling during subsequent installation. A U-shaped embedded screw 210 is pre-embedded on the left and right sides of the middle of the concrete block 220. The diameter of the embedded screw 210 is 25mm. The outer walls of the two top ends of each embedded screw 210 are provided with external threads for use with locking nuts to assemble the column 330.

[0035] An assembly steel plate is pre-embedded at the bottom of the column 330. Multiple pre-embedded steel bars are welded to the upper side of the assembly steel plate, and all the pre-embedded steel bars are pre-embedded inside the lower end of the column 330. The four corners of the assembly steel plate are respectively penetrated downward to form an assembly hole for assembly with the pre-embedded screw 210. The distribution of the four assembly holes matches the distribution of the four top ends of the two pre-embedded screws 210. On the left and right sides of the sliding cavity 333 at the top of the column 330, there is a rectangular hole 335 extending downwards. The two rectangular holes 335 extend through all the sliding cavities 333 from top to bottom. A 2mm thick rubber plate is provided at the bottom of each sliding groove 331, and the structure of the rubber plate is the same as the cross-sectional structure of the sliding groove 331. A limiting strip 332 is integrally provided on the front inner wall and the rear inner wall of each sliding groove 331 to limit the fence panel 800.

[0036] The upper side of the second pressing block 320 near the guide cavity 334 is provided with a 60-degree angle driving slope 321. The middle of the driving slope 321 near the guide cavity 334 is penetrated downward to form a semi-circular clearance notch 322. The upper end of the second pressing block 320 is recessed downward to form an installation groove 323. The outer part of the mounting groove 323 extends downward and penetrates the entire pressing block 320. A guide rod 325 is pre-embedded horizontally on the upper side of the mounting groove 323. A spring 324 is fitted on the outer side of the guide rod 325, and the inner end of the guide rod 325 is fixed to the inner end of the spring 324 by a spring seat. The length of the guide rod 325 is the same as the length of the spring 324, and the length of the guide rod 325 is less than the horizontal length of the mounting groove 323. The width of the mounting groove 323 is greater than the overall diameter of the spring 324. The lower side of the outer end of the second pressing block 320 is provided with an abutment surface 326. The outer side of the upper end of the abutment surface 326 is provided with a pressing surface 328 vertically. The outer side of the pressing surface 328 is integrally provided with a guide slope 327 at an angle of 30 degrees. The drive assembly 600 includes a connecting rod 620, on which multiple extrusion blocks 630 are connected in series. The lower end of the extrusion block 630 has an isosceles triangular structure, and the side of the lower end of the extrusion block 630 close to the two drive inclined surfaces 321 is parallel to and slidably connected to the drive inclined surfaces 321. The top of the uppermost extrusion block 630 has a pre-embedded abutment cylinder 610. The number of extrusion blocks 630 is the same as the number of sliding cavities 333. The abutment cylinder 610 is rotatably inserted into the lower end of the push rod 530.

[0037] The top plate 400 has a mating groove at the middle of the left end and the middle of the right end. The cross-sectional dimensions, structure and distribution of the mating groove match the cross-sectional dimensions, structure and distribution of the slide 331. The four corners of the top plate 400 each form a locking hole 410 that extends downwards. Four internal threaded cylinders are pre-embedded at the four corners of the upper end of the column 330, and the distribution of the four internal threaded cylinders matches the distribution of the four locking holes 410. The left front side, left rear side, right front side, and right rear side of the top plate 400 respectively penetrate downward to form a positioning hole 420. The top plate 400 has two rectangular holes 450 extending downwards on the left and right sides of its upper surface. The distribution, cross-sectional dimensions, and structure of the two rectangular holes 450 are the same as those of the two rectangular holes 335. The top plate 400 has a through hole 430 extending downwards in the middle. The top plate 400 has two internally threaded posts 440 embedded on the left and right sides of its upper surface. The two internally threaded posts 440 are placed inside the two rectangular holes 450. The top seat 700 includes a seat body 720. A rod 710 is provided at each of the four corners at the lower end of the seat body 720. The distribution and size of the four rods 710 match the distribution and size of the four positioning holes 420. The bottom of the seat body 720 is recessed upward to form a rectangular cavity 721. A blind hole 730 is pre-set at the middle of the top of the seat body 720 for installing external spray water pipes and spray heads.

[0038] The limiting component 500 includes a horizontal plate 520. A strip-shaped limiting plate 510 is welded to the lower left and lower right sides of the horizontal plate 520. The width of the limiting plate 510 matches the width of the mounting groove 323. The two limiting plates 510 vertically penetrate the two pressing blocks 320 and multiple pressing blocks 310 downwards. Two limiting plates 510 pass through multiple waist holes 511 arranged linearly in the vertical direction from left to right. The number of waist holes 511 is the same as the number of guide rods 325, and the width of the waist holes 511 matches the diameter of the guide rods 325. The two limiting plates 510 are slidably connected to the multiple guide rods 325 through the waist holes 511 and are in movable contact with the multiple springs 324. The two limiting plates 510 pass through the top plate 400 through the rectangular hole 335 and are inserted into the column 330 through the rectangular hole 450. A fastening hole 521 is formed by penetrating downwards on the left and right sides of the upper surface of the horizontal plate 520. The axes of the two fastening holes 521 are collinear with the axes of the two internal threaded posts 440. A threaded tube 540 is welded in the middle of the upper surface of the horizontal plate 520, and a push rod 530 is threadedly connected to the upper side of the threaded tube 540. A handle is welded horizontally to the upper end of the push rod 530. The length of the handle is less than the minimum side length of the rectangular cavity 721. The axis of the threaded tube 540 is collinear with the axis of the through hole 430.

[0039] Specifically, the precast concrete block 220 is hoisted into the foundation pit so that the insertion hole 221 of the base 200 is aligned with the baseline direction; then a hydraulic pile hammer is used to align the fixed pile 100 with the insertion hole 221 and hammer it downward from the hammer head until the lower end of the pile rod 110 is inserted into the underground stable layer. After the fixed pile 100 is installed, the levelness of the upper surface of the base 200 is measured with a spirit level. If there is a deviation, the pressing depth of the fixed pile 100 at the corresponding position is finely adjusted by the hydraulic pile hammer. The bottom edge block 230 of the base 200 is used to quickly level it. A small crane is used to lift the prefabricated installation column 300 (the locking hole 410 of the top plate 400 is aligned with the internal threaded cylinder of the installation column 300, and the top plate 400 is pre-fixed to the top of the installation column 300 with M12 bolts). The posture of the installation column 300 is adjusted so that the four mounting holes of the bottom mounting steel plate are aligned with the four top ends of the pre-embedded screws 210 on the base 200. The installation column 300 is slowly lowered until the mounting steel plate is in contact with the upper surface of the base 200, so that the pre-embedded screws 210 pass through the rubber plate and the mounting holes. Flat washers and spring washers are installed at the pre-embedded screws 210 on the upper side of the mounting steel plate, and then the M24 locking screws are tightened. Mother, use a level to measure the verticality of the installation column 300 again. If there is a deviation, fine-tune by adjusting the compression of the rubber plate or the tightness of the nut until the requirements are met. Manually insert the fence plate 800 slowly from top to bottom along the slide groove 331 of the column 330, inserting two fence plates 800 each time (located on the left and right sides of the slide groove 331 of the column 330 respectively). The limiting strip 332 is embedded in the edge gap of the end plate 1 810 and the end plate 2 820 to achieve initial limiting. Install all fence plates 800 in this way. Pass the two limiting plates 510 of the limiting component 500 through the rectangular hole 2 450 of the top plate 400 and the rectangular hole 1 335 of the column 330 and insert them into the inside of the column 330, so that the waist hole 1 511 on the limiting plate 510 is correspondingly sleeved with the guide rod 325 of the pressing block 1 310 and the pressing block 2 320, and the spring 324 is in a natural extension and contraction state. Align the fastening hole 521 of the horizontal plate 520 with the internal threaded post 440 on the top plate 400, and fix the horizontal plate 520 to the upper surface of the top plate 400 with M12 bolts. At this time, the abutment cylinder 610 at the lower end of the push rod 530 is rotatably inserted into the abutment cylinder 610 of the drive assembly 600. The operator holds the handle at the upper end of the push rod 530 and rotates the push rod 530 clockwise. The threaded transmission of the threaded tube 540 causes the push rod 530 to apply downward pressure. The push rod 530 pushes the connecting rod 620 of the drive assembly 600 to move downward along the guide cavity 334. The connecting rod 620 drives multiple extrusion blocks 630 to move downward synchronously. The uppermost pressing block 630 first contacts the driving inclined surface 321 of the second pressing block 320. As the pressing block 630 continues to move downward, the interaction of the 60-degree inclined surfaces generates a lateral thrust, pushing the two second pressing blocks 320 to move outward synchronously. The spring 324 is compressed, and the guide inclined surface 327 of the second pressing block 320 first adheres to the end plate 810 at the upper end of the uppermost fence plate 800. Under the guidance of the guide inclined surface 327, the rubber plate at the bottom of the slide 331 is squeezed and deformed, so that the pressing surface 328 on the continuously moving second pressing block 320 presses against the upper side of the end plate 810. At the same time, multiple first pressing blocks 310 move outward synchronously and fit tightly against the second end plate 820, generating water. The horizontal compression pressure is applied to limit the horizontal compression of all fence panels 800, ensuring that the fence panels 800 are not loose. After the top rod 530 rotates to the point where it can no longer move down, it stops rotating. At this time, the waist hole 511 of the limiting component 500 limits the maximum displacement of the guide rod 325, preventing the pressure block 310 and pressure block 320 from excessively compressing and damaging the fence panel 800. The top seat 700 is manually moved to the top of the column 330. The four insertion rods 710 at the lower end of the top seat 700 are aligned with the positioning holes 420 on the top plate 400. The top seat 700 is slowly lowered. After the insertion rods 710 are inserted into the positioning holes 420, the top seat 700 is stably placed on the top plate 400 under its own weight. The rectangular cavity 721 completely accommodates the handle. It solves the problems of long construction cycle and poor terrain adaptability of existing cast-in-place foundations. The precast concrete block 220 does not require on-site formwork and curing. The excavation depth of the foundation pit is only four-fifths of the height of the base 200. With the bottom edge block 230, it can be quickly leveled and adapt to different terrains. The fixed pile 100 is inserted and matched with the base 200, replacing the on-site cast-in-place embedded parts, shortening the installation time. In addition, the rubber plate buffers the stress caused by foundation settlement, avoiding loosening of the connection and reducing the rate of wind resistance stability decay. The installation column 300, along with the drive assembly 600 and the limiting assembly 500, solves the problem of increased transportation and installation costs and reduced flexibility caused by increasing the weight and thickness of components. The installation column 300 is made of precast concrete and the fence panel 800 is fixed by mechanical compression of the drive assembly 600 and the first and second pressing blocks 310 and 320. There is no need to add extra weight or thickness to the components. The weight of a single installation column 300 is lighter than that of traditional thickened components, reducing transportation costs. At the same time, the compression fixing is compatible with fence panels 800 of different sizes, improving installation adaptability in complex terrain scenarios and reducing the foundation bearing load. The integrated assembly structure solves the drawbacks of conventional solutions (adding embedded parts, using high-density lightweight materials, and thickening support rods). It eliminates the need for embedded parts, reducing production and construction complexity; eliminates the need for high-density lightweight materials, reducing material costs and allowing for large-scale application; eliminates the need for thickening or cross-fixing support rods, reducing installation and material costs; and resolves the contradiction between wind-resistant design and practicality and economy, achieving a comprehensive effect of low cost, high wind resistance, easy installation, and good aesthetics. The entire structure can be disassembled and reused.

[0040] As a second embodiment of the present invention: Please see Figures 1 to 15 End plate 1 810 extends outward by 2cm on the side near baffle 1 840, end plate 1 810 is flush with the outer wall of baffle 2 850 on the side near baffle 2 850, end plate 2 820 extends outward by 3cm on the side near baffle 1 840, and end plate 2 820 extends outward by 3cm on the side near baffle 2 850. The width of the baffle plate 2 850 matches the cross-sectional width of the chute 331. Multiple equally spaced waist holes 2 811 are formed on the upper surface of the end plate 1 810 located on the upper side of the fence plate 800. Multiple short screws 812 are welded on the lower surface of the end plate 1 810 located on the lower side of the fence plate 800. The number and distribution position of the short screws 812 match the number and distribution position of the waist holes 2 811. The air duct 830 is welded at a 60-degree angle between baffle 1 840 and baffle 2 850, and the air duct 830 passes through baffle 1 840 and baffle 2 850. The side of the air duct 830 near baffle 1 840 is flush with the outer wall of baffle 1 840, and the side of the air duct 830 near baffle 2 850 is flush with the outer wall of baffle 2 850. The inner diameter of the air duct 830 is 2-3cm. The height of the end of the air duct 830 near baffle 2 850 is lower than the height of the end of the air duct 830 near baffle 1 840. The blocking module 860 includes a circular plate 862. The two ends of the circular plate 862 near the inner wall of the air duct 830 are rotatably installed inside the air duct 830 through a fixing rod 861. The inner diameter of the air duct 830 is larger than the diameter of the circular plate 862. The two ends of the circular plate 862 near the two fixing rods 861 are provided with two mating holes 863 for rotatably connecting with the fixing rods 861. The two fixing rods 861 are fixedly connected to the air duct 830.

[0041] Based on the first embodiment described above, further, when lateral wind pressure acts on the fence panel 800, the airflow first contacts the windward surface of baffle 1 840 or baffle 2 850, and part of the airflow is directed through the air guide duct 830. Since the air guide duct 830 is inclined at 60 degrees (one end of baffle 1 840 is high and one end of baffle 2 850 is low), after the airflow enters the air guide duct 830, it flows along the inclined direction of the duct cavity, generating a combined lateral and vertical motion. The vertical component is upward, which can offset part of the horizontal thrust of the lateral wind pressure on the fence panel 800. At the same time, the airflow flows from one side of the fence panel 800 to the other side through the air guide duct 830, balancing the air pressure difference on both sides of the fence panel 800 and reducing the increase in force on the fence panel 800 caused by negative pressure adsorption. The blocking module dynamically adjusts with wind speed. When the wind speed is ≤3m / s, the circular plate naturally droops under its own gravity, and the ventilation volume of the air duct is small, avoiding disorderly airflow through the porous fence panel and reducing the turbulent impact of airflow on both sides of the fence panel. This suppresses the vibration of the fence panel caused by airflow disturbance from the source. When the wind speed is 3-8m / s, the circular plate rotates under the thrust of the airflow, increasing the ventilation volume and balancing the air pressure on both sides. The ventilation volume increases proportionally with the wind speed, balancing the air pressure difference on both sides of the fence panel in real time, preventing airflow accumulation on one side from causing the wind pressure to rise. At the same time, the 60° tilt angle makes the airflow discharge direction form a buffer angle with the fence panel surface, reducing the direct impact of airflow on the fence panel. When the wind speed is ≥8m / s, the circular plate rotates to be perpendicular to the axis of the air duct, and the ventilation volume reaches its maximum value, quickly dispersing the accumulated airflow on one side of the fence panel and preventing the continuous rise of wind pressure from squeezing and damaging the fence panel. At the same time, the 60° tilted exhaust port can reduce airflow backflow and prevent strong winds from impacting the fence panel again, achieving a wind-resistant effect of pressure relief without backflow. The fence panel 800 solves the problems of aesthetic degradation, cumbersome procedures, and stress concentration at connection points caused by the use of support rods. The air duct 830 is inclined at a 60-degree angle. When wind is applied, the airflow through the air duct 830 forms a guiding effect, reducing the lateral force of wind pressure on the fence and improving wind resistance. The circular plate 862 of the blocking module 860 rotates with the airflow, which can adjust the ventilation volume according to the wind speed and prevent strong winds from directly impacting the fence panel 800. The stress concentration at connection points is eliminated, eliminating the need for additional support rods. The overall aesthetics of the fence are not affected, the installation process is reduced, and the problems of dust and water accumulation and corrosion at the cross joints of the support rods are avoided, thus improving the overall wind resistance and durability.

[0042] This invention also relates to a method for assembling prefabricated components for prefabricated buildings, comprising the following steps: Step 1: Excavation of the foundation pit and installation of the foundation; Before construction, based on the design direction of the fence, lime powder was used to mark the installation baseline on the construction site, and the straightness deviation of the baseline was controlled within ±5mm / 5m. Excavate the foundation pit along the baseline. The depth of the foundation pit is four-fifths of the height of the base 200 (i.e., 160mm, the height of the base 200 is 200mm), and the width is 850mm (greater than the width of the base 200, which is 800mm, with a 5cm adjustment space reserved). The bottom of the foundation pit is compacted using a frog-type rammer, with a compaction density ≥1.8g / cm³, to ensure that the bearing capacity of the foundation meets the requirements. The precast concrete block 220 is hoisted into the foundation pit, and the insertion hole 221 of the base 200 is aligned with the baseline. Then, a hydraulic pile hammer is used to align the fixed pile 100 with the insertion hole 221 and hammer it downward from the hammer head until the lower end of the pile rod 110 is inserted into the underground stable layer (insertion depth ≥ 1.2m). During the hammering process, the hammering force is controlled to avoid bending and deformation of the pile rod 110. After the fixed pile 100 is installed, remove the rubber cover plate inside the hammer head and check the verticality of the pile rod 110 through the horizontal bar 120 in the through hole. The verticality deviation is controlled within ±2mm / m. Then, put the rubber cover plate back in place with the reserved hole facing upwards for easy disassembly and maintenance later. The levelness of the upper surface of the base 200 is measured using a spirit level. If there is a deviation, the pressure depth of the fixed pile 100 at the corresponding position is finely adjusted by using a hydraulic pile hammer. The bottom edge block 230 of the base 200 is used to quickly level it. The final levelness deviation is ≤3mm / m. The installation spacing of the base 200 is set to 600mm according to the length of the fence panel 800 (matching the width of the fence panel 800). The spacing deviation between adjacent bases 200 is ≤±10mm. Step 2: Install column assembly and leveling; A small crane was used to lift the prefabricated installation column 300. During the lifting process, soft slings were used to wrap the middle of the installation column 300 to avoid bumping the edges and corners. Adjust the posture of the mounting column 300 so that the four mounting holes of the bottom mounting steel plate are aligned with the four top ends of the pre-embedded screws 210 on the base 200. Slowly lower the mounting column 300 until the mounting steel plate is in contact with the upper surface of the base 200 for 5cm. A 2cm thick nitrile rubber rectangular plate (with the same size as the assembly steel plate) is laid between the assembly steel plate and the base 200. The rubber plate has pre-drilled through holes corresponding to the pre-embedded screws 210, which serve as a buffer and shock absorber, and at the same time facilitate fine-tuning of the level of the mounting column 300. Continue to lower the installation column 300 so that the pre-embedded screw 210 passes through the rubber plate and the assembly hole. Install flat washers and spring washers at the pre-embedded screw 210 on the upper side of the assembly steel plate, and then tighten the M24 lock nut. The tightening torque is controlled at 80-100 N·m to ensure a firm connection. Use a spirit level again to measure the verticality of the installation column 300 (both front and back, left and right directions). The verticality deviation should be ≤3mm / m. If there is a deviation, make a fine adjustment by adjusting the compression of the rubber plate or the tightness of the nut until the requirements are met. Step 3: Installation and clamping of the fence panels; Manually insert the fence panels 800 slowly from top to bottom along the grooves 331 of the mounting posts 300, inserting two fence panels 800 at a time (located on the left and right sides of the grooves 331 of the mounting posts 300 respectively). The limiting strips 332 are embedded in the edge gaps of end plates 810 and 820 to achieve initial limiting. Install all fence panels 800 in this manner, aligning the end plates 810 of adjacent fence panels 800 with a gap of ≤2mm. Place the top plate 400 on the top of the column 330, aligning the locking hole 410 of the top plate 400 with the internal threaded cylinder of the column 330. Pre-fix the top plate 400 to the top of the column 330 with M12 bolts, and control the tightening torque at 30-40 N·m. Pass the two limiting plates 510 of the limiting assembly 500 through the rectangular hole 2 450 of the top plate 400 and the rectangular hole 1 335 of the column 330, and insert them into the inside of the column 330, so that the waist hole 1 511 on the limiting plate 510 is correspondingly sleeved with the guide rod 325 of the pressing block 1 310 and the pressing block 2 320, and the spring 324 is in a natural extension and contraction state. Align the fastening hole 521 of the horizontal plate 520 with the internal thread post 440 on the top plate 400, and fix the horizontal plate 520 to the upper surface of the top plate 400 with M12 bolts. At this time, the abutment cylinder 610 at the lower end of the push rod 530 is rotatably inserted into the abutment cylinder 610 of the drive assembly 600. The operator holds the handle at the top of the push rod 530 and rotates the push rod 530 clockwise. The threaded transmission of the threaded tube 540 causes the push rod 530 to apply downward pressure. The push rod 530 pushes the connecting rod 620 of the drive assembly 600 to move downward along the guide cavity 334. The connecting rod 620 drives multiple extrusion blocks 630 to move downward synchronously. The uppermost pressing block 630 first contacts the driving inclined surface 321 of the second pressing block 320. As the pressing block 630 continues to move downward, the 60-degree angled inclined surfaces interact to generate a lateral thrust, pushing the two second pressing blocks 320 to move outward synchronously. The spring 324 is compressed, and the guide inclined surface 327 of the second pressing block 320 first adheres to the end plate 810 at the upper end of the uppermost fence panel 800. Under the guidance of the guide inclined surface 327, the rubber plate at the bottom of the slide groove 331 is squeezed and deformed, so that the pressing surface 328 on the continuously moving second pressing block 320 presses against the upper side of the end plate 810. At the same time, multiple first pressing blocks 310 move outward synchronously and fit tightly against the second end plate 820, generating a horizontal pressing force (pressing force ≥ 500N), realizing the horizontal pressing limit of all fence panels 800, ensuring that the fence panels 800 are not loose and the splicing gap is ≤ 1mm; After the top rod 530 rotates to the point where it can no longer move down, it stops rotating. At this time, the waist hole 511 of the limit component 500 restricts the maximum displacement of the guide rod 325, so as to prevent the pressure block 310 and the pressure block 320 from excessively squeezing and damaging the fence panel 800. Step 4: Installation of the top mount and overall acceptance; Manually move the top seat 700 to the top of the column 330, align the four insertion rods 710 at the lower end of the top seat 700 with the positioning holes 420 on the top plate 400, and slowly lower the top seat 700. After the insertion rods 710 are inserted into the positioning holes 420, the top seat 700 is stably placed on the top plate 400 under its own weight. The rectangular cavity 721 completely accommodates the handle without affecting the overall aesthetics. Check that the 700 top mount is installed flat and without any tilting or looseness; then conduct a comprehensive inspection of the entire fence structure, including the straightness of the fence (≤5mm / 5m), verticality (≤3mm / m), and the firmness of each connection (no looseness or abnormal noise). After acceptance, a spray pipe and spray head can be installed through the blind hole 730 of the top seat 700 to achieve additional dust suppression function. At this point, the entire fence structure is installed.

[0043] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A prefabricated component for prefabricated buildings, comprising: The base (200) is characterized in that the base (200) is fixed to the ground by two fixed piles (100), and the upper end of the base (200) is equipped with a mounting column (300) for mounting a fence panel (800) by pre-embedded screws (210) and nuts. Two fence panels (800) for forming a fence are clamped between every two mounting columns (300). A precast concrete top plate (400) is installed on the top of the mounting column (300). A drive assembly (600) is movably installed in the center of the mounting column (300) in the vertical direction. A limit assembly (500) is installed on the upper side of the top plate (400), and the lower end of the limit assembly (500) extends through the top plate (400) into the interior of the mounting column (300). A top seat (700) is movably inserted into the top plate (400) of the mounting column (300) for protecting the top plate (400) and the top of the mounting column (300). The fence panel (800) includes a first baffle (840) and a second baffle (850). The first baffle (840) and the second baffle (850) are arranged in parallel. An end plate (820) is welded to the left and right ends of the first baffle (840) and the second baffle (850). An end plate (810) is welded to the upper and lower ends of the first baffle (840) and the second baffle (850). Multiple rows of linearly distributed air guide pipes (830) are obliquely welded between the first baffle (840) and the second baffle (850), and a blocking module (860) is rotatably installed in the middle of each air guide pipe (830). The mounting post (300) also includes a post body (330). The post body (330) has a guide cavity (334) with a rectangular cross-section in the middle. The left middle and right middle of the post body (330) are recessed inward to form a groove (331) for mounting the fence panel (800). The two grooves (331) pass through each other from left to right to form multiple cavities (333) and are perpendicularly connected to the guide cavity (334). The multiple cavities (333) are linearly and equidistantly distributed in the vertical direction. The uppermost cavity (333) has two pressure blocks (320) installed in mirror image on the left and right sides. All the other cavities (333) have two pressure blocks (310) installed in mirror image on the left and right sides. The outer end of the second pressing block (320) is provided with an abutting surface (326), and the outer side of the upper end of the abutting surface (326) is provided with a pressing surface (328) vertically. The outer side of the pressing surface (328) is integrally provided with a guide slope (327) at an angle of 30 degrees. The upper side of the second pressing block (320) near the guide cavity (334) is provided with a 60-degree driving inclined surface (321). The upper end of the second pressing block (320) is recessed downward to form an installation groove (323). A guide rod is pre-embedded horizontally on the upper side of the installation groove (323). A spring (324) is fitted on the outer side of the guide rod. The drive assembly (600) includes a connecting rod (620) on which multiple pressing blocks (630) are connected in series. The uppermost pressing block (630) first contacts the driving inclined surface (321) of the second pressing block (320). As the pressing block (630) continues to move downward, 60 The interaction of the inclined planes at an angle generates a lateral thrust, pushing the two pressure blocks (320) to move outward synchronously. The spring (324) is compressed, and the guide inclined plane (327) of the pressure block (320) first adheres to the end plate (810) at the top of the uppermost fence plate (800). Under the guidance of the guide inclined plane (327), the rubber plate at the bottom of the slide (331) is squeezed and deformed, so that the pressing surface (328) on the continuously moving pressure block (320) presses against the upper side of the end plate (810). At the same time, multiple pressure blocks (310) move outward synchronously and fit tightly against the end plate (820), generating a horizontal squeezing force, thereby achieving horizontal squeezing and limiting of all fence plates (800).

2. A prefabricated component for prefabricated buildings as described in claim 1, characterized in that: The fixed pile (100) includes a pile rod (110), the length of which is 1.2-1.5m. A hammer head is provided at the upper end of the pile rod (110). The hammer head penetrates the pile rod (110) downward to form a through hole. The diameter of the part of the through hole inside the hammer head is larger than the diameter of the part inside the pile rod (110). A crossbar (120) is welded horizontally to the top part of the through hole inside the pile rod (110). A rubber cover plate is movably inserted into the part of the through hole inside the hammer head. A reserved hole is provided in the middle of the rubber cover plate to facilitate subsequent disassembly. The base (200) includes a concrete block (220), with insertion holes (221) formed at the middle of the left and right ends of the concrete block (220) respectively. The cross-sectional structure of the insertion hole (221) matches the cross-sectional structure of the upper part of the fixed pile (100). The lower end of the pile rod (110) passes through the concrete block (220) through the insertion hole (221). The bottom of the concrete block (220) is cut into multiple prisms (230) by isosceles triangular grooves evenly distributed in the horizontal and vertical directions to facilitate quick leveling during subsequent installation. A U-shaped embedded screw (210) is pre-embedded on the left and right sides of the middle of the concrete block (220). The diameter of the embedded screw (210) is 25mm. The outer walls of the two top ends of each embedded screw (210) are provided with external threads for use with locking nuts to assemble the mounting column (300).

3. A prefabricated component for prefabricated buildings as described in claim 1, characterized in that: The bottom of the column (330) is pre-embedded with an assembly steel plate. Multiple pre-embedded steel bars are welded to the upper side of the assembly steel plate, and the multiple pre-embedded steel bars are pre-embedded into the lower end of the column (330). The four corners of the assembly steel plate are respectively penetrated downward to form an assembly hole for assembly with the pre-embedded screw (210). The distribution position of the four assembly holes matches the distribution position of the four top ends of the two pre-embedded screws (210). A rectangular hole (335) is opened downward on the left and right sides of the sliding cavity (333) at the top of the column (330). The two rectangular holes (335) penetrate all the sliding cavities (333) from top to bottom. A 2mm thick rubber plate is provided at the bottom of each sliding groove (331), and the structure of the rubber plate is the same as the cross-sectional structure of the sliding groove (331). A limiting strip (332) is integrally provided on the front inner wall and the rear inner wall of each sliding groove (331) to limit the fence panel (800).

4. A prefabricated component for prefabricated buildings as described in claim 3, characterized in that: The driving ramp (321) has a semi-circular clearance notch (322) that extends downward through the middle of one end near the guide cavity (334). The mounting groove (323) extends downward through the entire pressing block (320) on the side near the slide groove, and the length of the guide rod is less than the lateral length of the mounting groove (323); The width of the mounting groove (323) is greater than the overall diameter of the spring (324). The lower end of the extrusion block (630) is an isosceles triangle structure. The side of the lower end of the extrusion block (630) close to the two driving inclined surfaces (321) is parallel to and slidably connected to the driving inclined surfaces (321). The top of the uppermost extrusion block (630) has a pre-embedded abutment cylinder (610). The number of extrusion blocks (630) is the same as the number of sliding cavities (333). The abutment cylinder (610) is rotatably inserted into the lower end of the top rod (530).

5. A prefabricated component for prefabricated buildings as described in claim 1, characterized in that: The top plate (400) has a docking groove at the middle of the left end and the middle of the right end, respectively. The cross-sectional dimensions, structure and distribution of the docking groove are matched with the cross-sectional dimensions, structure and distribution of the slide groove (331). The four corners of the top plate (400) are respectively connected downward to form a locking hole (410). The upper end of the column (330) has four internal threaded cylinders embedded at the four corners, and the distribution of the four internal threaded cylinders matches the distribution of the four locking holes (410). The left front side, left rear side, right front side, and right rear side of the top plate (400) are respectively connected downward to form a positioning hole (420). The top plate (400) has a rectangular hole 2 (450) formed by penetrating downwards on the left and right sides of its upper surface. The distribution position, cross-sectional size and structure of the two rectangular holes 2 (450) are the same as those of the two rectangular holes 1 (335). The top plate (400) has a through hole (430) formed by penetrating downwards in the middle. The top plate (400) has an internal threaded post (440) embedded in the left and right sides of its upper surface. The two internal threaded posts (440) are placed inside the two rectangular holes 2 (450). The top seat (700) includes a seat body (720). A rod (710) is provided at each of the four corners of the lower end of the seat body (720). The distribution position and size of the four rods (710) are matched with the distribution position and size of the four positioning holes (420). The bottom of the seat body (720) is recessed upward to form a rectangular cavity (721). A blind hole (730) is preset downward in the middle of the top of the seat body (720) for installing external spray water pipes and spray heads.

6. A prefabricated component for prefabricated buildings as described in claim 5, characterized in that: The limiting component (500) includes a horizontal plate (520), and a strip-shaped limiting plate (510) is welded to the lower left and lower right sides of the horizontal plate (520). The width of the limiting plate (510) matches the width of the mounting groove (323), and the two limiting plates (510) penetrate vertically downward through the two pressure blocks (320) and multiple pressure blocks (310). The two limiting plates (510) pass through multiple waist holes (511) that are linearly distributed in the vertical direction from left to right. The number of waist holes (511) is the same as the number of guide rods, and the width of the waist holes (511) matches the diameter of the guide rods. The two limiting plates (510) are slidably connected to multiple guide rods through the waist holes (511) and are in contact with multiple springs (324). The two limiting plates (510) pass through the top plate (400) through the rectangular hole (335) and are inserted into the column (330) through the rectangular hole (450). The upper surface of the horizontal plate (520) has two downward-through fastening holes (521) on the left and right sides respectively. The axes of the two fastening holes (521) are collinear with the axes of the two internal threaded columns (440). A threaded tube (540) is welded in the middle of the upper surface of the horizontal plate (520), and a push rod (530) is threaded on the upper side of the threaded tube (540). A handle is welded horizontally at the upper end of the push rod (530). The length of the handle is less than the minimum side length of the rectangular cavity (721). The axis of the threaded tube (540) is collinear with the axis of the through hole (430).

7. A prefabricated component for prefabricated buildings as described in claim 1, characterized in that: The first end plate (810) extends outward by 2cm from the side near the first baffle (840), the first end plate (810) is flush with the outer wall of the second baffle (850) on the side near the second baffle (850), the second end plate (820) extends outward by 3cm from the side near the first baffle (840), and the second end plate (820) extends outward by 3cm from the side near the second baffle (850). The width of the second baffle (850) matches the cross-sectional width of the chute (331). Multiple equally spaced waist holes (811) are formed on the upper surface of the first end plate (810) located on the upper side of the fence plate (800). Multiple short screws (812) are welded to the lower surface of the first end plate (810) located on the lower side of the fence plate (800). The number and distribution position of the short screws (812) match the number and distribution position of the waist holes (811). The air guide pipe (830) is welded at a 60-degree angle between baffle one (840) and baffle two (850), and the air guide pipe (830) passes through baffle one (840) and baffle two (850). The side of the air guide pipe (830) near baffle one (840) is flush with the outer wall of baffle one (840), and the side of the air guide pipe (830) near baffle two (850) is flush with the outer wall of baffle two (850). The inner diameter of the air guide pipe (830) is 2-3cm. The height of the end of the air guide pipe (830) near baffle two (850) is lower than the height of the end of the air guide pipe (830) near baffle one (840). The blocking module (860) includes a circular plate (862). The two ends of the circular plate (862) near the inner wall of the air guide pipe (830) are respectively rotatably installed in the middle of the air guide pipe (830) through a fixing rod (861). The inner diameter of the air guide pipe (830) is larger than the diameter of the circular plate (862). The two ends of the circular plate (862) near the two fixing rods (861) are provided with two docking holes (863) for rotatably connecting with the fixing rods (861). The two fixing rods (861) are fixedly connected to the air guide pipe (830).

8. A method for assembling prefabricated components for prefabricated buildings as described in any one of claims 1-7, characterized in that: The steps include: Step 1: Before the excavation of the foundation pit and the installation of the base, according to the design direction of the fence, lime powder is used to mark the installation baseline on the construction site. The straightness deviation of the baseline is controlled within ±5mm / 5m. Excavate the foundation pit along the baseline. The depth of the foundation pit is four-fifths of the height of the base (200), and the width is 5cm greater than the base. The bottom of the foundation pit is compacted with a frog-type rammer, and the compaction density is ≥1.8g / cm³ to ensure that the bearing capacity of the foundation meets the requirements. The precast concrete block (220) is hoisted into the foundation pit, so that the insertion hole (221) of the base (200) is aligned with the baseline direction; Then, a hydraulic pile hammer is used to align the fixed pile (100) with the insertion hole (221) and hammer it downwards from the hammer head until the lower end of the pile rod (110) is inserted into the underground stable layer. During the hammering process, the hammering force is controlled to avoid bending and deformation of the pile rod (110). After the fixed pile (100) is installed, remove the rubber cover plate inside the hammer head and check the verticality of the pile rod (110) through the cross bar (120) in the through hole. The verticality deviation is controlled within ±2mm / m. Then replace the rubber cover with the pre-drilled hole facing upwards for easy disassembly and maintenance. The levelness of the upper surface of the base (200) is measured by using a spirit level. If there is a deviation, the pressure depth of the fixed pile (100) at the corresponding position is finely adjusted by using a hydraulic pile hammer. The bottom edge block (230) of the base (200) is used to quickly level it. The final levelness deviation is ≤3mm / m. The installation spacing of the base (200) is set to 600mm based on the length of the fence panel (800), and the spacing deviation between adjacent bases (200) is ≤±10mm; Step 2: Assembly and Leveling of the Installation Column. A small crane is used to lift the prefabricated installation column (300). During the lifting process, soft slings are used to wrap the middle of the installation column (300) to avoid bumping the corners. Adjust the posture of the mounting column (300) so that the four mounting holes of the bottom mounting steel plate are aligned with the four top ends of the pre-embedded screws (210) on the base (200). Slowly lower the mounting column (300) until the mounting steel plate is in contact with the upper surface of the base (200) for 5cm. A 2cm thick nitrile rubber rectangular plate is laid between the assembly steel plate and the base (200). The size of the nitrile rubber rectangular plate is the same as that of the assembly steel plate. The rubber plate has a pre-set through hole corresponding to the pre-embedded screw (210) to buffer and dampen the shock, and at the same time facilitates fine adjustment of the level of the installation column (300). Continue to lower the installation column (300) so that the pre-embedded screw (210) passes through the rubber plate and the assembly hole. Install flat washers and spring washers at the pre-embedded screw (210) on the upper side of the assembly steel plate, and then tighten the M24 lock nut. The tightening torque is controlled at 80-100 N·m to ensure a firm connection. Use a spirit level to measure the verticality of the installation column (300) again. The verticality deviation should be ≤3mm / m. If there is a deviation, adjust the compression of the rubber plate or the tightness of the nut to make a fine adjustment until the requirements are met. Step 3: Installation and pressing of fence panels. Manually insert the fence panels (800) slowly from top to bottom along the groove (331) of the mounting post (300), inserting two fence panels (800) at a time. The limiting strip (332) is embedded in the edge gap of end plate one (810) and end plate two (820) to achieve initial limiting. Install all fence panels (800) in this manner, aligning the end plates (810) of adjacent fence panels (800) with a gap of ≤2mm; Place the top plate (400) on the top of the column (330), align the locking hole (410) of the top plate (400) with the internal threaded cylinder of the column (330), and pre-fix the top plate (400) to the top of the column (330) with M12 bolts. Control the tightening torque to 30-40 N·m. Pass the two limiting plates (510) of the limiting assembly (500) through the rectangular hole 2 (450) of the top plate (400) and the rectangular hole 1 (335) of the column (330), and insert them into the inside of the column (330). Make the waist hole 1 (511) on the limiting plate (510) correspond to the guide rod of the pressing block 1 (310) and the pressing block 2 (320), and the spring (324) is in a natural extension and contraction state. Align the fastening hole (521) of the horizontal plate (520) with the internal threaded post (440) on the top plate (400), and fix the horizontal plate (520) to the upper surface of the top plate (400) with M12 bolts. At this time, the lower end of the push rod (530) is rotatably inserted into the abutment cylinder (610) of the drive assembly (600). The operator holds the handle at the top of the push rod (530) and rotates the push rod (530) clockwise. The threaded transmission of the threaded tube (540) causes the push rod (530) to apply downward pressure. The push rod (530) pushes the connecting rod (620) of the drive assembly (600) to move downward along the guide cavity (334). The connecting rod (620) drives multiple extrusion blocks (630) to move downward synchronously. The uppermost extrusion block (630) first contacts the driving ramp (321) of the second pressing block (320). As the extrusion block (630) continues to move downward, 60 The interaction of the inclined planes at an angle generates a lateral thrust, pushing the two pressure blocks (320) to move outward synchronously. The spring (324) is compressed, and the guide inclined plane (327) of the pressure block (320) first adheres to the end plate (810) at the top of the uppermost fence plate (800). Under the guidance of the guide inclined plane (327), the rubber plate at the bottom of the slide (331) is squeezed and deformed, so that the pressing surface (328) on the continuously moving pressure block (320) presses against the upper side of the end plate (810). At the same time, multiple pressure blocks (310) move outward synchronously and fit tightly against the end plate (820), generating a horizontal squeezing force, realizing the horizontal squeezing limit of all fence plates (800), ensuring that the fence plates (800) are not loose and the splicing gap is ≤1mm. After the top rod (530) rotates to the point where it can no longer move down, it stops rotating. At this time, the waist hole one (511) of the limit component (500) restricts the maximum displacement of the guide rod, so as to prevent the pressure block one (310) and pressure block two (320) from excessively squeezing and damaging the fence panel (800). Step 4: Installation and overall acceptance of the top seat. Manually move the top seat (700) to the top of the column (330), align the four insert rods (710) at the bottom of the top seat (700) with the positioning holes (420) on the top plate (400), and slowly lower the top seat (700). After the insert rods (710) are inserted into the positioning holes (420), the top seat (700) is stably placed on the top plate (400) under its own weight. The rectangular cavity (721) completely accommodates the handle without affecting the overall aesthetics. Check whether the top bracket (700) is installed flat and without any tilting or looseness; then conduct a comprehensive inspection of the entire fence structure, including the straightness, verticality, and firmness of each connection. After acceptance, the spray pipe and spray head can be installed through the blind hole (730) of the top seat (700) to realize the additional dust suppression function. At this point, the entire fence structure is installed.

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