Bionic bamboo joint pipe, processing device and electromagnetic heating ceramic grinding die forming process

Abstract

The present application relates to the technical field of building beam column joint, and discloses a bionic bamboo joint shaped pipe, which comprises a steel pipe and a ring-shaped reinforcing joint arranged integrally with the inner wall of the steel pipe. A processing device for the bionic bamboo joint shaped pipe comprises two inner molds arranged vertically and used for entering the inside of the steel pipe, a ring column body sleeved outside the steel pipe and capable of heating the steel pipe, and a clamping unit used for fixing the ring column body. The inner mold comprises a hollow pipe and a reinforcing part arranged integrally with the end of the hollow pipe. When the two reinforcing parts in the same steel pipe are butted, the two reinforcing parts and the inner wall of the steel pipe jointly enclose a reinforcing joint space for accommodating the reinforcing joint. The present application forms the reinforcing joint space by using the inner mold, then heats the bamboo joint pipe to integrally form the reinforcing joint with the same shape as the reinforcing joint space in the inside of the bamboo joint pipe, and solves the problems of difficult welding of the inner reinforcing ring, hindering of concrete pouring and influence of the space appearance by the protruding of the outer reinforcing ring.

Description

Technical Field

[0001] This invention relates to the field of building beam-column joint technology, specifically to a biomimetic bamboo-shaped tube, processing device, and electromagnetic heating ceramic grinding mold forming process. Background Technology

[0002] Beam-column connections are critical, typically requiring assurance of structural safety, stability, and durability. Beam-column connections can be broadly categorized into three types: fully welded joints, hybrid bolted-welded joints, and fully bolted joints. To enhance the stability and safety of beam-column connections, reinforcing joints are generally installed. Existing joints typically employ internal and external reinforcing rings within the steel column. This method of placing steel rings inside the steel pipe is inconvenient for welding and processing and interferes with concrete pouring. Furthermore, placing reinforcing rings outside the steel pipe, especially the external reinforcing ring at the lower flange of the beam, protrudes from the column on all four sides, affecting the aesthetics of the space. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a biomimetic bamboo-shaped pipe, processing device and electromagnetic heating ceramic grinding mold forming process. By using an inner mold to construct a reinforcing section space, and then heating the bamboo-shaped pipe to integrally form a reinforcing section with the same shape as the reinforcing section space, the problem of difficult welding of the inner reinforcing ring, obstruction of concrete pouring and the outer reinforcing ring protruding from the column surface affecting the aesthetics of the space is solved, while ensuring that the reinforcing section has sufficient strength.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a biomimetic bamboo-shaped pipe, comprising a steel pipe and an annular reinforcing joint integrally formed with the inner wall of the steel pipe.

[0005] Furthermore, the upper and lower sides of the reinforcing section have a smooth transition with the inner wall of the steel pipe, and the upper and lower sides of the reinforcing section are smoothly connected by an arc surface.

[0006] Furthermore, the upper and lower sides of the reinforcing joint are inclined to avoid obstructing the flow of concrete.

[0007] A processing device for biomimetic bamboo-shaped pipe includes two vertically arranged inner molds for entering the inside of the steel pipe, an annular column fitted on the outside of the steel pipe and capable of heating the steel pipe, and a clamping unit for fixing the annular column. The inner mold includes a hollow tube and a reinforcing part integrally formed with the end of the hollow tube; when two reinforcing parts inside the same steel pipe are connected, the two reinforcing parts and the inner wall of the steel pipe together enclose a reinforcing section space to accommodate the reinforcing section.

[0008] Furthermore, the reinforcing section is smoothly connected to the hollow tube via an arc surface; the reinforcing section is configured to undergo elastic deformation in order to allow for radial expansion and contraction.

[0009] Furthermore, the annular column includes several sector-shaped columns arranged sequentially along the circumference, several coil holes opened through the sector-shaped columns, and conductive coils arranged in a spiral shape and passing through all the coil holes; the conductive coils in adjacent sector-shaped columns are intermittently arranged; the conductive coils include two ends, which extend to the outside of the bottommost coil hole and the outside of the topmost coil hole, respectively, and each end is connected to a connector; a wire connecting section is provided between two adjacent sector-shaped columns, with both ends connected to the interiors of the two adjacent conductive coils; the wire connecting section is hollow and has a diameter in the middle that is larger than the diameters at both ends.

[0010] Furthermore, the clamping unit includes several force-transmitting groove blocks arranged in a ring and including the outer side of the fan-shaped column and the upper and lower sides.

[0011] Furthermore, the clamping unit also includes a clamp that abuts against the outside of the force transmission groove block.

[0012] Furthermore, a gap is provided between two adjacent sector columns to allow the conductive coil to pass through; the size of the gap is 0-1mm; when the sector column is close to the outside of the steel pipe, the size of the gap is 0mm; the conductor connection section has an opening along its length; the conductive coil is hollow; the sector column is made of ceramic; all edges of the sector column near the inner side and the edges of the force transmission groove block near the outer side are rounded.

[0013] A ceramic heating mold forming process for a biomimetic bamboo-shaped pipe includes the following steps: A conductive coil and wire connecting sections are inserted into a fan-shaped column, and detachable connectors are fixedly connected to both ends of the conductive coil; then, the annular column formed by assembling the fan-shaped columns is inserted into a force-transmitting groove block; next, a clamp is used to hold the force-transmitting groove block so that the annular column is tightly fixed to the outside of the steel pipe, corresponding to the area where the reinforcing section is to be processed inside; two inner molds are inserted into the steel pipe from the top and bottom respectively, so that the two reinforcing parts abut and extend radially until they abut against the inner wall of the steel pipe, at which point the reinforcing section space is formed; then, the conductive coil is energized through the connector, and external pressure is applied from the top and bottom of the steel pipe to the middle, helping to form an integrally formed reinforcing section inside the steel pipe until the reinforcing section fills the reinforcing section space; finally, the pressure of the two inner molds is released, causing the reinforcing parts to contract radially and be pulled out from inside the steel pipe.

[0014] The beneficial effects of the present invention are: 1. The present invention abandons the traditional processing method of prefabricating the reinforcing ring separately and fixing it manually by welding. There is no need to carry out welding operations inside the narrow steel pipe, which completely avoids the problems of poor visibility of the internal space, difficult welding operation, and easy welding errors. At the same time, it greatly reduces the difficulty of the processing technology, shortens the processing cycle, reduces the cost of manual welding, and improves the processing efficiency.

[0015] 2. The reinforcing section is integrally formed with the steel pipe using a thermoplastic process, which significantly improves the overall compressive, shear, and bending mechanical properties of the steel column. At the same time, the surface of the reinforcing section has a smooth transition and no abrupt obstruction structure. Compared with the traditional built-in reinforcing ring, it can effectively avoid problems such as aggregate retention and blockage during concrete pouring, and ensure that the concrete inside the pipe is poured densely and evenly.

[0016] 3. The reinforcing section is entirely formed inside the steel pipe, with no protruding reinforcing components on the outer wall of the steel pipe, keeping the surface of the steel pipe flat and smooth, without occupying building space and avoiding subsequent construction procedures; at the same time, no additional external covering treatment is required, resulting in good building aesthetics and adapting to various building decoration requirements. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the cross-sectional structure of the inner mold entering the steel pipe. Figure 2 A schematic diagram of a cross-sectional structure of a bamboo joint column under heating and compression at a certain state. Figure 3 A schematic diagram of the cross-sectional structure of a bamboo-joint column under heat compression molding; Figure 4 A cross-sectional structural diagram of the process of removing the inner mold after heating and compressing the bamboo joint column; Figure 5 A schematic diagram of the structure in which the sector-shaped column and the force-transmitting groove block are fitted together; Figure 6 This is a schematic diagram showing the connection of coils between sector columns; Figure 7 This is a schematic diagram of a ring-shaped column structure; Figure 8 A schematic diagram of the fit between the rounded fan-shaped column and the force transmission groove block; Figure 9 This is a schematic diagram of the overall cross-sectional structure with rounded edges.

[0018] In the diagram: 1. Sector-shaped column; 2. Conductive coil; 3. Force transmission groove block; 4. Wire connection section; 5. Gap; 6. Inner mold; 7. Steel pipe; 8. Joint; 9. Fixture; 10. Reinforcing section. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings and specific examples. 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.

[0020] The directional terms mentioned in this invention, such as "up", "down", "front", "back", "left", "right", "inner", "outer", "side", "top" and "bottom", are only for reference to the orientation of the accompanying drawings. The directional terms used are for the purpose of explaining and understanding this invention and are not absolute limitations on the actual use.

[0021] Example: like Figures 1-9 As shown, a biomimetic bamboo-shaped pipe is formed by deforming a steel pipe into a bamboo-shaped steel pipe; it includes a hollow steel pipe 7 and an annular reinforcing section 10 integrally formed with the inner wall of the steel pipe 7; the reinforcing section 10 has an upper side, a lower side, and a rounded transition portion connecting the upper and lower sides.

[0022] The terms "inner" and "outer" refer to their distance from the centerline of the steel pipe (7-axis). Figure 1 As shown, the cross-section of stiffening section 10 has left and right ends. For the left side of the stiffening section, its right end is closer to the axis of rotation than its left side; therefore, the right end is the inner side. Front, back, left, and right are directions defined within the same horizontal plane, while up and down are... Figure 1 Above and below; the length direction of conductor connection segment 4 is the direction of extension at both ends, such as Figure 6 Left and right directions.

[0023] This invention abandons the traditional processing method of prefabricating reinforcing rings separately and fixing them manually. It eliminates the need for welding operations inside the narrow steel pipe, completely avoiding problems such as poor visibility of the internal space, difficult welding operations, and easy welding errors. At the same time, it significantly reduces the difficulty of the processing technology, shortens the processing cycle, reduces manual welding costs, and improves processing efficiency.

[0024] The reinforced joint features a smooth transition and no abrupt obstructions. Compared to traditional built-in reinforcing rings, this design effectively avoids problems such as aggregate retention, blockage, cavities, and air bubbles during concrete pouring. It ensures dense and uniform concrete pouring within the pipe, improves the synergistic working ability between the steel pipe and concrete, and significantly enhances the overall compressive, shear, and bending mechanical properties of the steel column. The column's outer wall has no protruding reinforcing components, maintaining a smooth and flat surface that does not occupy building space. It also avoids interference from external reinforcing rings with subsequent construction processes such as pipeline layout and wall decoration. Furthermore, it eliminates the need for additional external covering, resulting in a more aesthetically pleasing building that suits various architectural styles, including office buildings, residences, and industrial plants.

[0025] The molding process is simple and the molding quality is stable. It can be adapted to the processing and production of steel pipe columns with different diameters and wall thicknesses, and has wide versatility. It saves many costs such as raw materials for reinforcing rings, welding consumables, and post-decoration treatment, reducing the overall cost of component production and on-site construction. It has obvious advantages in industrialized mass production and has good prospects for engineering application and promotion value.

[0026] The upper and lower sides of the reinforcing section 10 are smoothly connected to the inner wall of the steel pipe 7, and an arc-shaped transition surface is provided for connection to avoid stress concentration and concrete accumulation, or to reduce the flow rate of concrete; the upper and lower sides of the reinforcing section 10 are smoothly connected by an arc surface.

[0027] The upper and lower sides of the reinforcing section 10 are both inclined to avoid obstructing the flow of concrete; the upper side is inclined downward from the outside to the inside, and the lower side is inclined upward from the outside to the inside.

[0028] A processing device for biomimetic bamboo-shaped tubing includes two vertically arranged inner molds 6 for entering the interior of a steel pipe 7, an annular column fitted over the outside of the steel pipe 7 for heating the pipe, and a clamping unit for fixing the annular column. The inner molds 6 are also hollow tubular, restricting the size and shape of the bamboo-shaped steel pipe column. They have the function of increasing the diameter when compressed inward and decreasing the diameter when pulled outward, with a diameter change of 1-5 mm. Various methods can be used to achieve this, and no specific requirements are specified. The annular column is responsible for electromagnetic induction heating of a localized section of the steel pipe 7, and the clamping unit is responsible for positioning the annular column, thereby positioning the reinforcing section.

[0029] The inner mold 6 includes a hollow tube and a reinforcing portion integrally formed with the end of the hollow tube; such as Figure 1 The inner mold 6 is symmetrically arranged about the horizontal plane of the center of both parts. When the two reinforcing parts inside the same steel pipe 7 are connected, the two reinforcing parts and the inner wall of the steel pipe 7 together enclose the reinforcing section space to accommodate the reinforcing section 10.

[0030] The reinforcing section and the hollow tube are smoothly connected by an arc surface; the reinforcing section is configured to undergo elastic deformation so as to cause radial expansion and contraction; the diameter increases when compressed inward and decreases when pulled outward; the diameter of the hollow tube is smaller than the inner diameter of the steel pipe 7.

[0031] The annular column includes several sector-shaped columns 1 arranged sequentially along the circumference, several coil holes opened through the sector-shaped columns 1, and conductive coils 2 arranged in a spiral shape and passing through all the coil holes; the conductive coils 2 in adjacent sector-shaped columns 1 are intermittently arranged; the conductive coils 2 include two ends, which extend to the outside of the bottommost coil hole and the outside of the topmost coil hole, respectively, and extend to the outside of the sector-shaped columns 1 (e.g., Figure 7 As shown, the sector-shaped column 1 here has a radial through hole specially opened for the conductive coil 2 to pass through, and each of the two ends is connected to a connector 8; A gap 5 is provided between two adjacent sector columns 1 to allow the conductive coil 2 to pass through; the gap is 0 when the clamp 9 is clamped, and the clamp 10 needs to be loosened when the steel pipe 7 is removed, and the size of the gap 5 increases from 0.

[0032] Between two adjacent sector-shaped columns 1, there is a wire connecting segment 4, with its two ends respectively connecting to the interior of two adjacent conductive coils 2; the wire connecting segment 4 is hollow tubular, with a diameter in the middle larger than the diameter at both ends, resembling a spindle shape; it is connected to the conductive coil 2 to form an integral spiral coil. Multiple sector-shaped columns 1 can be grouped together to accommodate several conductive coils 2 and wire connecting segments 4.

[0033] The clamping unit includes several force transmission groove blocks 3 arranged in a ring and including the outer side and upper and lower sides of the fan-shaped column 1; the force transmission groove blocks 3 are provided with a receiving groove for accommodating the fan-shaped column 1 through the horizontal direction, the receiving groove includes the upper and lower sides and the bottom surface of the groove, and the bottom surface of the groove abuts against the outer side of the fan-shaped column 1.

[0034] The clamping unit also includes a clamp 9 that abuts against the outside of the force transmission groove block 3.

[0035] The gap 5 has a size of 0-1mm; the wire connection section 4 has an opening along its length; the conductive coil 2 is hollow; the sector column 1 is made of ceramic; the edges of the sector column 1 near the inner side and the edges of the force transmission groove block 3 near the outer side are all rounded.

[0036] A ceramic heating mold forming process for a biomimetic bamboo-shaped tube includes the following steps: a conductive coil 2 and a wire connecting section 4 are both inserted into a fan-shaped column 1, and a detachable connector 8 is fixedly connected to both ends of the conductive coil 2. Then, the annular column formed by assembling the individual sector columns 1 is inserted into the force transmission groove block 3; Next, the force transmission groove block 3 is clamped by the clamp 9 so that the ring column is tightly fixed to the outside of the steel pipe 7, and the reinforcing section 10 is to be processed inside. Two inner molds 6 are inserted into the steel pipe 7 from the top and bottom respectively, so that the two reinforcing parts abut and extend radially until they abut against the inner wall of the steel pipe 7, at which point the reinforcing section space is formed; Next, the conductive coil is energized through the connector 8, and external pressure is applied from the top and bottom of the steel pipe 7 to the middle to help form the integrally formed reinforcing section 10 inside the steel pipe 7 until the reinforcing section 10 fills the reinforcing section space. Finally, the pressure on the clamp 9 and the two inner molds 6 is released, causing the steel pipe 7 to expand slightly and the reinforcing part to contract radially, pulling it out from the inside of the steel pipe 7.

[0037] The above description is only used to illustrate the technical solution of the present invention and is not intended to limit it. Any other modifications or equivalent substitutions made by those skilled in the art to the technical solution of the present invention, as long as they do not depart from the spirit and scope of the technical solution of the present invention, should be covered within the scope of the claims of the present invention.

Claims

1. A biomimetic bamboo-shaped pipe, characterized in that: It includes a steel pipe (7) and an annular reinforcing section (10) integrally formed with the inner wall of the steel pipe (7).

2. The biomimetic bamboo-shaped pipe according to claim 1, characterized in that: The upper and lower sides of the reinforcing section (10) are smoothly connected to the inner wall of the steel pipe (7), and the upper and lower sides of the reinforcing section (10) are smoothly connected by an arc surface.

3. The biomimetic bamboo-shaped pipe according to claim 1, characterized in that: The upper and lower sides of the reinforcing section (10) are inclined to avoid obstructing the flow of concrete.

4. A processing device for biomimetic bamboo-shaped tubing, characterized in that: It includes two vertically arranged inner molds (6) for entering the interior of the steel pipe (7), an annular column fitted on the outside of the steel pipe (7) and capable of heating the steel pipe (7), and a clamping unit for fixing the annular column; The inner mold (6) includes a hollow tube and a reinforcing part integrally formed with the end of the hollow tube; when two reinforcing parts inside the same steel pipe (7) are connected, the two reinforcing parts and the inner wall of the steel pipe (7) together enclose a reinforcing section space to accommodate the reinforcing section (10).

5. The processing device for a biomimetic bamboo-shaped tube according to claim 4, characterized in that: The reinforcing part is smoothly connected to the hollow tube via an arc surface; the reinforcing part is configured to undergo elastic deformation in order to expand and contract radially.

6. The processing device for a biomimetic bamboo-shaped tube according to claim 4, characterized in that: The annular column includes several sector-shaped columns (1) arranged sequentially along the circumference, several coil holes opened through the sector-shaped columns (1), and conductive coils (2) arranged in a spiral shape and passing through all the coil holes; the conductive coils (2) in adjacent sector-shaped columns (1) are intermittently arranged; the conductive coil (2) includes two ends, which extend to the outside of the bottommost coil hole and the outside of the topmost coil hole, respectively, and each end is connected to a connector (8); a wire connecting section (4) is provided between two adjacent sector-shaped columns (1), with its two ends connected to the inside of the two adjacent conductive coils (2); the wire connecting section (4) is hollow tube-shaped, and its middle diameter is larger than its two end diameters.

7. The processing device for a biomimetic bamboo-shaped tube according to claim 6, characterized in that: The clamping unit includes several force-transmitting groove blocks (3) arranged in a ring and including the outer side of the fan-shaped column (1) and the upper and lower sides.

8. The processing device for a biomimetic bamboo-shaped tube according to claim 7, characterized in that: The clamping unit also includes a clamp (9) that abuts against the outside of the force transmission groove block (3).

9. The processing device for a biomimetic bamboo-shaped tube according to claim 6, characterized in that: A gap (5) is provided between two adjacent sector columns (1) for the conductive coil (2) to pass through; the size of the gap (5) is 0-1mm; when the sector column (1) is close to the outside of the steel pipe (7), the size of the gap (5) is 0mm; the wire connection section (4) has an opening along its length; the conductive coil (2) is hollow; the sector column (1) is made of ceramic; the edges of the sector column (1) near the inner side and the edges of the force transmission groove block (3) near the outer side are all rounded.

10. A ceramic heating mold forming process for a biomimetic bamboo-shaped tube, characterized in that, Includes the following steps: The conductive coil (2) and the wire connection section (4) are both inserted into the sector column (1), and the two ends of the conductive coil (2) are fixedly connected with detachable connectors (8); then the annular column formed by splicing the various sector columns (1) is inserted into the force transmission groove block (3); then the clamp (9) is used to hold the force transmission groove block (3) so that the annular column is tightly fixed to the outside of the steel pipe (7), corresponding to the location where the reinforcing section (10) is to be processed inside; the two inner molds (6) are inserted from the top and bottom of the steel pipe (7) respectively. At the point where the steel pipe (7) is inserted, the two reinforcing parts are brought into contact and extended radially until they come into contact with the inner wall of the steel pipe (7), at which point the reinforcing section space is formed; then, the conductive coil is energized (2) through the connector (8), and at the same time, external pressure is applied from the top and bottom of the steel pipe (7) to the middle, which helps to form an integrally formed reinforcing section (10) inside the steel pipe (7) until the reinforcing section (10) fills the reinforcing section space; finally, the pressure of the two inner molds (6) is released, causing the reinforcing parts to contract radially and be pulled out from inside the steel pipe (7).

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