A pile foundation cap for buildings and its positioning method

Abstract

This invention relates to a pile foundation cap for buildings and its positioning method. The pile foundation cap includes three V-shaped frames arranged in series, each connected by a screw joint. A fixing plate is installed on the upper part of each V-shaped frame, and a permeable plate is installed parallel to the outside of the fixing plate. The permeable plate has multiple permeable holes, and a waterproof membrane is installed between the fixing plate and the permeable plate. The screw joint design makes the connection between adjacent V-shaped frames more stable and convenient, reducing the cumbersome connection procedures in traditional construction. The positioning method includes steps such as marking the midpoint of the V-shaped frame, adjusting the auxiliary angle steel to align with the building's vertical axis, assembling the V-shaped frame, installing clamps for fixation, and bricklaying and waterproof membrane installation. This simplifies the construction process of the pile foundation and shortens the construction cycle. Furthermore, the method enhances the waterproof performance of the pile foundation through the filling of the waterproof membrane and cement grout, ensuring construction stability and long-term durability.

Description

Technical Field

[0001] This invention relates to a pile foundation cap for buildings and a method for positioning the same. Background Technology

[0002] The foundation type for high-rise building projects is mostly pile-cap foundation, including two-pile cap, three-pile cap, four-pile cap, five-pile cap, etc.

[0003] The unique shape and structure of the three-pile cap posed significant challenges to the positioning and layout process during construction. Typically, positioning was done based on pre-laid axis lines, using a steel ruler to measure distances, requiring fourteen measurements. Nails were then driven into the endpoints, and thin thread was wrapped around them to mark the positions of the six sides. A brick formwork was then constructed on the outer side of these six sides, with the clear dimensions of the pile (i.e., the dimensions of the final concrete after pouring) inside the brick formwork. After this step, cement slurry was applied to the inner side of the brick formwork, followed by a waterproof membrane, and then another layer of cement slurry. This method required repeated steps for each three-pile cap, resulting in a waste of manpower.

[0004] Therefore, how to design a pile foundation cap for building construction with faster and more accurate positioning and its positioning method is a problem that needs to be solved. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide a pile foundation cap for buildings and its positioning method. By setting three detachable V-shaped frames, the positioning of the pile foundation is better facilitated. By setting a permeable plate and a fixing plate, the steps of applying plaster twice and attaching waterproof cloth are reduced to simply adding waterproof cloth and then filling with cement grout, saving steps and increasing labor efficiency. The purpose of this invention is achieved as follows:

[0006] In one aspect, the present invention provides a pile foundation cap for building construction, comprising a swivel joint, a permeable plate, a fixing plate, a waterproof plate, and three V-shaped frames arranged in series; each V-shaped frame has a bending angle of 120 degrees, a first fixing hole is provided at the front end of each V-shaped frame, and a second fixing hole is provided at the rear end of each V-shaped frame; the swivel joint between two adjacent V-shaped frames passes through the first fixing hole of one V-shaped frame and the second fixing hole of the other V-shaped frame; the swivel joint is an annular shape with an opening; the inner side of the swivel joint has an installation surface; the second fixing hole has an inclined surface; the installation surface and the inclined surface are fitted together and fastened after the swivel joint rotates; a fixing plate is installed on the upper part of the V-shaped frame; the fixing plate has a bending angle of 120 degrees; a permeable plate is installed parallel to the outer side of the fixing plate; the permeable plate has a plurality of permeable holes; and a waterproof plate is movably installed between the fixing plate and the permeable plate. This design allows for determining the location of the pile foundation simply by marking points along the vertical axis of the building, reducing manpower and errors. Furthermore, the placement of the permeable plate and fixing plate in this device reduces the construction steps of the brick formwork during the erection of the brick formwork, further increasing the efficiency of pile foundation construction.

[0007] Furthermore, in order to match the inner wall angles of the screw joint and the fixing hole, reduce the friction between the screw joint and the fixing hole, and thus make the screwing process smoother and avoid installation difficulties or loosening, the inner wall curvature of the first fixing hole corresponds to the arc angle of the screw joint.

[0008] Furthermore, the inclined surface is at a 30-degree angle to the central axis of the V-shaped frame, ensuring that the V-shaped frame is easier to connect and more stable during installation, while also having a limiting function.

[0009] Furthermore, the 45-degree opening arc makes it easier to insert and secure the screw joint, the opening of which has an arc of 45 degrees.

[0010] Furthermore, the upper part of the screw joint is provided with a handle, which makes it easier for the operator to screw it on.

[0011] Furthermore, the permeation holes are circular in shape, and there are 30 permeation holes. The circular permeation holes can distribute the cement slurry more evenly, ensuring that the permeation plate has a good cement slurry filling distribution on the entire surface, and strengthening the bond between the bricks, the permeation plate, and the fixing plate.

[0012] Furthermore, the gap between the fixing plate and the permeation hole is 1-2cm. This gap can create an appropriate space between the fixing plate and the permeation plate, allowing the waterproof plate to be smoothly inserted and tightly fitted. It also ensures that the cement slurry filling of the permeation hole is more uniform, while avoiding the possibility that an excessively large gap may lead to poor waterproofing effect.

[0013] Furthermore, the screw-on part is installed by fastening with a V-shaped bracket using a clip. The clip is a hollow tube with an opening and closing structure. This design allows the clip to be directly fitted onto the screw-on part, making it easier to fix the screw-on part.

[0014] On the other hand, the present invention provides a method for positioning a pile foundation cap for a building, for implementing a pile foundation cap for a building as described in claims 1-9, comprising the following steps: drawing the midpoint on the upper side of a V-shaped frame; adjusting the position of the auxiliary angle steel so that one side of the angle steel is aligned with the vertical axis of the building, and the extension line of one side of the angle steel coincides with the midpoint; splicing three V-shaped frames into a hexagon, with adjacent V-shaped frames fixed together by screw joints; fixing with clips inserted into the screw joints; laying bricks along the outer side of the permeable plate; inserting a waterproof board between the permeable plate and the fixing plate, and tightly fitting the waterproof board to the fixing plate; filling the gap between the permeable plate and the waterproof board with cement grout. This method reduces the steps of plastering twice and applying waterproof cloth to only adding waterproof cloth and filling with cement grout, saving steps and increasing labor efficiency.

[0015] Compared with the prior art, the beneficial effects of the present invention are: by accurately marking the midpoint on the V-shaped frame and aligning the vertical axis of the building with auxiliary angle steel, the accurate positioning of the pile foundation cap can be ensured, avoiding the errors that may be caused by manual measurement in the traditional method. The design of the screw joint and the clamps simplifies the installation steps, making the splicing between the V-shaped frames faster and more stable, greatly reducing construction time and procedures, and significantly improving construction efficiency.

[0016] By combining the traditional two-step plastering and waterproofing membrane application process into a simple step of filling with cement slurry and waterproofing membrane, the complexity of construction and the materials required are reduced, thus lowering the total project cost. The simplified process also reduces waiting and drying time during construction, thereby accelerating the construction period and improving overall work efficiency. Attached Figure Description

[0017] Figure 1 This is a three-dimensional perspective diagram of a V-shaped frame used for pile foundation caps in buildings.

[0018] Figure 2 This is a three-dimensional perspective diagram of a V-shaped frame used for pile foundation caps in buildings, taken from another angle.

[0019] Figure 3 This is a three-dimensional view of a V-shaped frame used for pile foundation caps in buildings after a waterproof membrane has been installed.

[0020] Figure 4 This is a top-down view of a V-shaped frame used for building pile foundations after installation.

[0021] Figure 5This is a cross-sectional view of a V-shaped frame used for pile foundation caps in buildings, with the horizontal plane as the cross section.

[0022] Figure 6 This is a cross-sectional view of a V-shaped frame used for building pile foundations after it has been fixed along a horizontal plane.

[0023] Figure 7 yes Figure 6 A magnified view of a portion of A in the image;

[0024] Figure 8 This is a flowchart illustrating a method for positioning pile foundation caps in buildings.

[0025] In the diagram: 1. Permeation hole, 2. Permeation plate, 3. V-shaped bracket, 4. Second fixing hole, 5. Fixing plate, 6. First fixing hole, 7. Waterproof plate, 8. Screw joint, 9. Midpoint, 10. Mounting surface, 11. Handle, 12. Angled surface, 13. Clip. Detailed Implementation

[0026] To enhance understanding of the present invention, the present invention will be further described in detail below with reference to embodiments and accompanying drawings. These embodiments are only used to explain the present invention and do not constitute a limitation on the scope of protection of the present invention.

[0027] Please refer to Figure 1-7 In one aspect, embodiments of the present invention provide a pile foundation cap for buildings, comprising three V-shaped frames 3 arranged in series, each V-shaped frame 3 having a bending angle of 120 degrees, a first fixing hole 6 at the front end of each V-shaped frame 3, and a second fixing hole 4 at the rear end of each V-shaped frame 3. A screw joint 8 between two adjacent V-shaped frames 3 passes through the first fixing hole 6 of one V-shaped frame 3 and the second fixing hole 4 of the other V-shaped frame 3. The screw joint 8 is an annular shape with an opening, and an installation surface 10 is provided on the inner side of the screw joint 8. An inclined surface 12 is provided in the second fixing hole 4. The installation surface 10 and the inclined surface 12 are fitted together and fastened after the screw joint 8 rotates. A fixing plate 5 is installed on the upper part of the V-shaped frame 3, the fixing plate 5 having a bending angle of 120 degrees, and a permeable plate 2 is installed parallel to the outer side of the fixing plate 5. The permeable plate 2 has a plurality of permeable holes 1, and a waterproof plate 7 is movably installed between the fixing plate 5 and the permeable plate 2. This design allows for determining the location of the pile foundation simply by marking points along the vertical axis of the building, reducing manpower and errors. Furthermore, the placement of the permeable plate 2 and the fixing plate 5 in this device reduces the construction steps of the brick formwork during the erection of the brick formwork, further increasing the efficiency of pile foundation construction.

[0028] In this embodiment, by precisely marking the midpoint 9 on the V-frame 3 and aligning the vertical axis of the building with auxiliary angle steel, the accurate positioning of the pile foundation cap can be ensured, avoiding errors that may be caused by manual measurement in traditional methods. The design of the screw joint 8 and the clamp 13 simplifies the installation steps, making the splicing between the V-frames 3 faster and more stable, greatly reducing construction time and procedures, and significantly improving construction efficiency. By combining the traditional two-step plastering and waterproof cloth application process into a simple step of filling cement slurry and waterproof board 7, the complexity of construction and the required materials are reduced, thus lowering the total project cost. The simplified process reduces waiting and drying time during construction, thereby accelerating the construction period and improving overall work efficiency.

[0029] Specifically, this device includes three V-shaped frames 3 arranged in series. Each V-shaped frame 3 has a bending angle of 120 degrees to form a hexagonal structure. In this embodiment, the length of each side of the V-shaped frame 3 is 1 meter. Each V-shaped frame 3 has a first fixing hole 6 at its front end and a second fixing hole 4 at its rear end. These two holes are respectively located on two sides of the V-shaped frame 3. The screw-in part 8 is a ring-shaped connecting component with an open end, used to connect adjacent V-shaped frames 3, ensuring that they form a firm connection through rotation or fastening. The screw-on part 8 makes the installation of the V-shaped frame 3 faster and more accurate, while avoiding the inconvenience or loosening problems caused by the variable angle in the traditional bolt connection method. The inner side of the screw-on part 8 is provided with a mounting surface 10 with an area of ​​10 square centimeters. The second fixing hole 4 is provided with a bevel 12 with a surface area of ​​7 square centimeters. The mounting surface 10 and the bevel 12 fit together and snap together after the screw-on part 8 is rotated. This design makes the fixing between the V-shaped frames 3 faster, saves manpower, and ensures the accuracy of the connection. Additionally, a permeation plate 2 is installed parallel to the outer side of the fixing plate 5. The bottom of the permeation plate 2 is fixed to the V-shaped frame 3 by welding. The angle between the permeation plate 2 and the fixing plate 5 is the same as the angle of the V-shaped frame 3, both being 120 degrees. The permeation plate 2 is provided with several permeation holes 1. A waterproof plate 7 is movably installed between the fixing plate 5 and the permeation plate 2. The waterproof plate 7 is an auxiliary component and can only be installed after all three V-shaped frames 3 are installed. The material of the waterproof plate 7 can be one of plastic, rubber, or synthetic resin.

[0030] In one embodiment, the inner wall curvature of the first fixing hole 6 corresponds to the arc angle of the screw-in portion 8. This design reduces friction during screwing, ensuring a smoother screwing process and avoiding installation difficulties or loosening caused by excessive friction.

[0031] In one embodiment, the inclined surface 12 is at a 30-degree angle to the central axis of the V-shaped frame 3. This design ensures that the V-shaped frame 3 can be smoothly connected and fixed during installation, while also playing a certain limiting role, avoiding the difficulty in aligning and inserting the screw joint 8 due to incorrect angle during installation.

[0032] In one embodiment, the opening of the screw joint 8 has an arc of 45 degrees. This design facilitates the screw joint 8 to enter the fixing hole and complete the locking. During installation, it generates more horizontal pressure so that the V-shaped brackets 3 fit together tightly.

[0033] In one embodiment, the upper part of the screw joint 8 is provided with a handle 11 to facilitate manual rotation by the operator during installation.

[0034] In one embodiment, the permeation hole 1 is circular in shape and has 30 holes. The design of the permeation hole 1 can ensure that the cement slurry is evenly distributed on the permeation plate 2 to mimic the plastering effect in the prior art. In actual use, this structure can also enhance the bonding between the permeation plate 2 and the bricks of the outer brick formwork.

[0035] In one embodiment, the spacing between the fixing plate 5 and the permeation hole 1 is 1-2 cm. This design provides sufficient space for the waterproofing board 7 and the cement slurry to further enhance the bonding between the permeation board 2 and the bricks of the outer brick membrane.

[0036] In one embodiment, the screw-on part 8 is fastened to the V-shaped frame 3 by a clip 13. The clip 13 is a hollow tube with an opening and closing structure. The inner diameter of the hollow tube is the same as the outer diameter of the screw-on part 8. The inner wall of the hollow tube is provided with protrusions. After the screw-on part 8 is installed, the outer wall of the protruding part inside the box is also provided with protrusions. After the clip 13 wraps around the screw-on part 8 through the opening and closing structure, the protrusions are interlocked with each other. At this time, the screw-on part 8 is fixed between two adjacent V-shaped parts, thus fixing the two adjacent V-shaped parts.

[0037] Please refer to Figure 8 On the other hand, embodiments of the present invention also propose a method for positioning a pile foundation cap for a building, for implementing a pile foundation cap for a building as described in claims 1-9, characterized by including the following steps: a. Using a measuring tool, such as a steel tape measure or a laser rangefinder, accurately measure and mark the midpoint 9 at the top edge of the V-frame 3. This midpoint 9 will be used in subsequent steps for alignment and installation of auxiliary angle steel.

[0038] b. Adjust the position of the auxiliary angle steel so that one side of the angle steel is aligned with the vertical axis of the building, and the extension line of one side of the angle steel coincides with the midpoint 9. Specifically, use the angle steel as an auxiliary positioning tool. The angle steel has a right angle and can be aligned with the vertical axis of the building. Align one side of the angle steel with the vertical axis of the building and ensure that the extension line of the angle steel coincides with the midpoint 9 drawn on the V-shaped frame 3. This can ensure that the center position of the pile foundation is consistent with the vertical axis of the building design and avoid structural deviation in the later stage.

[0039] c. Assemble three V-frames 3 into a hexagon, and fix adjacent V-frames 3 together with screw joints 8; Specifically, assemble three V-frames 3 into a hexagon according to design requirements. Each V-frame 3 has a fixing hole and a screw joint 8 at its front and rear ends, respectively. Adjacent V-frames 3 are firmly connected by screw joints 8. During installation, the screw joints 8 are precisely inserted into the fixing holes of the V-frames 3 and tightly fixed, so that the connection between all V-frames 3 is stable.

[0040] d. The screw joint 8 is fixed by inserting the clip 13; Specifically, after the screw joint 8 is connected to the V-shaped frame 3, the screw joint 8 is further fixed by the clip 13. The clip 13 adopts a hollow tube design with an opening and closing structure, which is convenient for installation and ensures that it cannot be easily loosened after connection. The installation method of the clip 13 simplifies the process of traditional bolt or welding connection, making the whole construction process more efficient and the connection more secure.

[0041] e. Lay bricks along the outer side of the permeation plate 2; This step is the brick-laying step in the general prior art, but this step is along the outer side of the permeation plate 2. Compared with the existing brick-laying steps, the permeation plate 2 makes it easier to align the bricks, improving efficiency and accuracy.

[0042] f. Insert the waterproof membrane 7 between the permeable plate 2 and the fixing plate 5, and ensure that the waterproof membrane 7 and the fixing plate 5 are tightly fitted together; ensure that the waterproof layer forms a complete sealing structure to prevent water from seeping into the pile foundation cap when filling the cement grout.

[0043] g. Fill the gap between the permeable plate 2 and the waterproof plate 7 with cement grout. The cement grout filling here is a replacement for the existing technology of applying cement grout twice with a tool. This method can complete the grouting step without the need for a cement worker, thus increasing efficiency.

[0044] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A pile foundation cap for buildings, characterized in that, The device includes a swivel joint, a permeable plate, a fixing plate, a waterproof plate, and three V-shaped frames arranged in series. Each V-shaped frame has a bending angle of 120 degrees. Each V-shaped frame has a first fixing hole at its front end and a second fixing hole at its rear end. A swivel joint between two adjacent V-shaped frames passes through the first fixing hole of one V-shaped frame and the second fixing hole of the other. The swivel joint is an annular shape with an opening. An mounting surface is provided on the inner side of the swivel joint, and a bevel is provided in the second fixing hole. The mounting surface and the bevel are fitted together and fastened as the swivel joint rotates. A fixing plate and a permeable plate are mounted on the upper part of each V-shaped frame. The fixing plate has a bending angle of 120 degrees, and a permeable plate is mounted parallel to the outer side of the fixing plate. The permeable plate has several permeable holes. A waterproof plate is movably mounted between the fixing plate and the permeable plate. The swivel joint is fastened to the V-shaped frame by a clip, which is a hollow tube with an opening and closing structure.

2. A pile foundation cap for building construction according to claim 1, characterized in that, The inner wall curvature of the first fixing hole corresponds to the arc angle of the screw joint.

3. A pile foundation cap for building construction according to claim 1, characterized in that, The inclined plane is at a 30-degree angle to the central axis of the V-shaped frame.

4. A pile foundation cap for building construction according to claim 1, characterized in that, The opening of the screw joint has an arc of 45 degrees.

5. A pile foundation cap for building construction according to claim 1, characterized in that, The upper part of the screw joint is provided with a handle.

6. A pile foundation cap for building construction according to claim 1, characterized in that, The permeation holes are circular in shape, and there are 30 permeation holes.

7. A pile foundation cap for building construction according to claim 1, characterized in that, The spacing between the fixing plate and the permeation hole is 1-2 cm.

8. A method for positioning a pile foundation cap for a building as described in any one of claims 1-7, characterized in that, Includes the following steps: Draw the midpoint on the top of the V-shaped frame; adjust the position of the auxiliary angle steel so that one side of the angle steel is aligned with the vertical axis of the building, and the extension line of one side of the angle steel coincides with the midpoint; splice the three V-shaped frames into a hexagon, and fix the adjacent V-shaped frames together with screw joints; insert clips into the screw joints for fixation; lay bricks along the outer side of the permeable board; insert the waterproof board between the permeable board and the fixing board, and fit the waterproof board tightly against the fixing board; fill the gap between the permeable board and the waterproof board with cement grout.

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