A prefabricated, mold-free shell column

The prefabricated, formwork-free column support, splicing, and installation mechanism solves the problems of cumbersome procedures and rough surfaces in wooden formwork construction, achieving stable support, rapid installation, and high-quality concrete column forming.

CN117780018BActive Publication Date: 2025-12-02WANNING HAIJIAN PREFABRICATED CONSTR ENG CO LTD
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Patent Information

Application Number
CN202311852623.7
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-12-29
Publication Date
2025-12-02
Estimated Expiration
2043-12-29

AI Technical Summary

Technical Problem

When construction workers use wooden formwork to construct concrete columns, the construction process is cumbersome and time-consuming. The wooden formwork is prone to sticking to the concrete, and the concrete surface is damaged during disassembly and assembly. After repeated use, the splicing seams become obvious, resulting in a rough surface of the concrete column and affecting the quality.

Method used

The prefabricated, non-removable formwork column includes formwork panels, structural vertical steel bars, stirrups, assembly plates, and support mechanisms. The support mechanisms provide stable support, the splicing mechanisms allow for rapid assembly, the installation mechanisms facilitate installation, and the fixing components increase connection stability and eliminate the need for disassembly.

Benefits of technology

It improves the support stability of the formwork plate, simplifies the installation process, prevents concrete from overflowing, reduces splicing joints, improves the surface flatness and quality of concrete columns, and reduces construction difficulty.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention discloses a prefabricated, non-removable formwork column, comprising a formwork plate, wherein multiple sets of structural vertical reinforcing bars are arranged inside the formwork plate, multiple sets of rod-shaped connectors are arranged on the inner side of the formwork plate, and stirrups are wrapped around the outer surface of the multiple sets of structural vertical reinforcing bars. Multiple sets of fastener connectors are arranged on the inner side of the assembly plate, and steel wire cables are arranged at the connection between the stirrups and the structural vertical reinforcing bars. It also includes a support mechanism: the support mechanism includes a groove formed on the outer surface of the formwork plate; a splicing mechanism: the splicing mechanism is arranged on the outer side of the formwork plate, and the splicing mechanism is used for quick assembly of the formwork; and an installation mechanism: the installation mechanism is arranged on the inner wall of the formwork plate, and the installation mechanism is used for convenient installation of parts inside the formwork, preventing the wooden formwork from falling over and causing concrete leakage during the concrete pouring and molding process, and preventing the wooden formwork and concrete from detaching after the concrete dries.
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Description

Technical Field

[0001] This invention relates to the field of mold column installation technology, and in particular to an assembled, non-removable mold column. Background Technology

[0002] Precast concrete columns are a modern building construction material widely used on construction sites. They are fabricated on-site on a production line, comprising a steel reinforcement frame and concrete, and are used to support and reinforce concrete structures. Wooden formwork, on the other hand, is a type of mold used in manufacturing, construction, and design fields. Typically made of wood and planks, it is a key tool for manufacturing various products such as concrete components, metal castings, plastic products, ornaments, furniture, and more.

[0003] Patent application No. 202211588140.6 discloses a formwork shell for supporting square columns in buildings, comprising: a formwork shell body, templates, and a frame; the formwork shell body includes four templates arranged in a square, and the side walls of the four templates are fixed by bolts; the template includes a frame located on the outermost side, the side plates and the inner frame are embedded and installed on the rear side of the frame, and the side plates are located on the inner side of the inner frame, and the inner frame is welded to the frame; the crossbeams, supports and fixing plates are embedded and installed on the inner side of the inner frame; corner correction strips are provided at the template connection points; this invention, through improvements to the formwork shell for supporting square columns in buildings, has the advantages of reasonable structural design, strong structural strength and stability, improved overall structural strength, improved connection between templates, easy adjustment of cross-sectional dimensions to meet different usage requirements, convenient installation and disassembly of the plugs, easy operation, reusability, and strong practicality, thus effectively solving the problems and shortcomings proposed by this invention.

[0004] In the aforementioned comparative documents: When wooden formwork is used in the construction of concrete columns, construction workers need to use external tools to assemble and fix the wooden formwork. The overall construction process is cumbersome, complex, and time-consuming. After the concrete and steel reinforcement are poured and formed, the wooden formwork needs to be disassembled. When the construction workers remove the wooden formwork, the contact surface between the wooden formwork and the concrete is prone to sticking. During disassembly and assembly, the wooden formwork will pull on the concrete surface, thereby damaging the surface of the concrete column. Moreover, after the wooden formwork is used multiple times, the splicing seams between the wooden formwork are obvious, resulting in a rougher concrete column surface and a decrease in flatness, thus affecting the quality of the concrete column surface. Summary of the Invention

[0005] This invention discloses a prefabricated, formwork-free column, aiming to solve the technical problems of the following: When using wooden formwork in the construction of concrete columns, construction workers need to use external tools to assemble and fix the wooden formwork, which is cumbersome, complex, and time-consuming. After the concrete and steel reinforcement are poured and formed, the wooden formwork needs to be disassembled. When the wooden formwork is removed, the contact surface between the wooden formwork and the concrete is prone to sticking. During disassembly and assembly, the wooden formwork will pull on the concrete surface, thereby damaging the surface of the concrete column. Moreover, after the wooden formwork is used multiple times, the splicing seams between the wooden formwork are obvious, resulting in a rough concrete column surface and reduced flatness, thus affecting the quality of the concrete column surface.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A prefabricated, non-removable formwork column includes a formwork plate with multiple sets of structural vertical reinforcing bars inside. Multiple sets of rod-shaped connectors are provided on the inner side of the formwork plate, and stirrups are wrapped around the outer surfaces of the structural vertical reinforcing bars. An assembly plate is provided at one end of the formwork plate, and angle brackets are provided above the formwork plate. Multiple sets of fastener connectors are provided on the inner side of the assembly plate, and steel wire cables are provided at the connection points between the stirrups and the structural vertical reinforcing bars. The column also includes a support mechanism: the support mechanism includes a groove formed on the outer surface of the formwork plate, a rotating rod rotatably connected to the inner wall of the groove, a connecting plate fixedly connected to the outer surface of the rotating rod, a support rod fixedly connected to the bottom end of the connecting plate, and a fixing component inside the groove; a splicing mechanism: the splicing mechanism is located on the outer side of the formwork plate and is used for rapid assembly of the formwork; and an installation mechanism: the installation mechanism is located on the inner wall of the formwork plate and is used for convenient installation of parts inside the formwork.

[0008] By setting up a support mechanism, when concrete is poured into the membrane column, the support rod can be brought into contact with the ground by flipping the connecting plate outward, thereby increasing the support force of the membrane plate and preventing the flow force generated when the concrete rushes in from causing the membrane plate to be blown open, thus improving the support stability of the membrane plate.

[0009] In a preferred embodiment, the splicing mechanism includes locking strips disposed on both sides of the outer wall of the mold plate, with buckles disposed on the outer side of the locking strips, the buckles being evenly arranged on the outer side of the locking strips about the central axis of the locking strips, and mounting frames being fixedly connected to both sides of the outer wall of the assembly plate, with mounting grooves opened inside the mounting frames, and locking holes evenly opened on the inner side of the mounting grooves about the central axis of the mounting grooves, the size of the locking strips being adapted to the size of the mounting grooves, and the size of the buckles being adapted to the size of the locking holes.

[0010] By setting up a splicing mechanism, when workers install the membrane column, they can place two sets of membrane plates at the installation location and insert an assembly plate to quickly splice the mounting frame on the outside of the assembly plate and the clips on the outside of the membrane plate, achieving convenient installation and improving work efficiency.

[0011] In a preferred embodiment, the installation mechanism includes a fixing block disposed on the inner sidewall of the mold plate. One end of the fixing block is fixedly connected to a tube. Shrinkage grooves are provided on both sides of the inner wall of the tube. A rotating bar is rotatably connected inside the shrinkage groove. A protrusion is fixedly connected to the front end of the rotating bar. A clamping groove is provided at the top end of the rotating bar. The protrusion extends into the interior of the tube through the shrinkage groove.

[0012] By setting up an installation mechanism, when workers install pressure-resistant parts inside the mold plate, one end of the part can be inserted into the inside of the insert, and the rotating bar can lock the inserted end of the part, so that the installation locking effect can be achieved without the need for external parts.

[0013] In a preferred embodiment, the fixing component includes a movable groove formed inside the recess, a sliding groove formed on the inner side of the movable groove, a spring block slidably connected inside the sliding groove, a plug rod fixedly connected to one side of the spring block, a connecting groove formed on one side of the movable groove, extrusion plates fixedly connected to both ends of the rotating rod, the plug rod being horizontally and vertically positioned above the connecting groove, the spring block and the extrusion plate being positioned on the same horizontal plane, a sealing gasket being provided on the inner wall of the mold shell plate, the sealing gasket and the connecting groove penetrating each other, and a connecting mesh being provided on the inner wall of the mold shell plate, the coverage area of ​​the connecting mesh being the same as the area of ​​the inner wall of the mold shell plate.

[0014] By setting up fixed components, after the concrete is poured in and during the initial forming of the concrete, the shrinkage support mechanism can drive the insertion rod to move, so that the insertion rod extends through the connecting groove into the interior of the formwork plate and inserts into the concrete. At the same time, the connection between the formwork plate and the concrete is provided with a connecting mesh, which can increase the stability of the connection between the formwork plate and the concrete.

[0015] As can be seen from the above, the present invention discloses an assembled, non-removable mold shell column, which has the following beneficial effects:

[0016] Firstly, when construction workers pour concrete into the membrane column, they can flip the connecting plate outward to make the support rod contact the ground, thereby increasing the support force of the membrane plate and preventing the flow force generated when the concrete pours in from causing the membrane plate to be blown open. This improves the support stability of the membrane plate and avoids the wooden formwork falling down and causing concrete leakage during the concrete pouring and molding process.

[0017] Secondly, when workers are assembling and installing the membrane column on site, they can place two sets of membrane panels at the installation location and insert the assembly plate to quickly assemble the installation frame on the outside of the assembly plate and the clips on the outside of the membrane panel, achieving convenient installation, saving installation time, improving work efficiency, and preventing splicing seams between wooden templates. This can prevent the concrete column surface from becoming rough and reducing its flatness, thereby improving the quality of the concrete column surface.

[0018] Thirdly, when workers install pressure-resistant parts inside the formwork plate, one end of the part can be inserted into the inside of the insert, so that the rotating bar locks the inserted end of the part. This eliminates the need for external parts to achieve the installation locking effect, reducing the overall installation difficulty of the membrane column and alleviating the workload of construction workers.

[0019] Fourth, after the concrete is poured, during the initial forming of the concrete, the shrinkage support mechanism can drive the insertion rod to move, allowing the insertion rod to extend through the connecting groove into the interior of the formwork plate and insert into the concrete. At the same time, the connection between the formwork plate and the concrete is provided with a connecting mesh, which can increase the stability of the connection between the formwork plate and the concrete. After the wooden formwork is installed, it can achieve the effect of not needing to be dismantled, reducing the workload of construction workers, and at the same time increasing the connection between the wooden formwork and the concrete, preventing the wooden formwork and the concrete from falling off after the concrete dries. Attached Figure Description

[0020] Figure 1 This is a three-dimensional schematic diagram of an assembled, mold-free shell column proposed in this invention.

[0021] Figure 2 This is a three-dimensional view of the mold plate of an assembled, non-disassembly molded column proposed in this invention.

[0022] Figure 3 This is a three-dimensional view of the assembly plate of a prefabricated, mold-free shell column proposed in this invention.

[0023] Figure 4 This is a three-dimensional representation of the vertical reinforcing steel bars of a prefabricated, formwork-free column proposed in this invention.

[0024] Figure 5 This is a three-dimensional schematic diagram of a support component for a prefabricated, mold-free shell column proposed in this invention.

[0025] Figure 6 This is a three-dimensional side sectional view of the mold plate of an assembled, non-disassembly molded column proposed in this invention.

[0026] Figure 7 This is a three-dimensional schematic diagram of a prefabricated, mold-free shell column connecting plate assembly proposed in this invention.

[0027] Figure 8 This is a three-dimensional schematic diagram of the installation component of a prefabricated, mold-free shell column proposed in this invention.

[0028] Figure 9 This is a three-dimensional schematic diagram of a sealing assembly for a prefabricated, mold-free shell column proposed in this invention.

[0029] Figure 10 This is a three-dimensional internal sectional view of the mold plate of an assembled, non-disassembly molded column proposed in this invention.

[0030] In the attached diagram: 1. Mold plate; 2. Groove; 3. Rotating rod; 4. Connecting plate; 5. Support rod; 6. Assembly plate; 7. Rod-shaped connector; 8. Stirrup; 9. Structural vertical reinforcement; 10. Angle bracket; 11. Clip; 12. Buckle; 13. Fastener connector; 14. Mounting groove; 15. Clip hole; 16. Mounting frame; 17. Fixing block; 18. Insert cylinder; 19. Connecting groove; 20. Steel wire rope; 21. Insert rod; 22. Sealing gasket; 23. Connecting mesh; 24. Movable groove; 25. Extrusion plate; 26. Spring block; 27. Shrinkage groove; 28. Rotating strip; 29. ​​Protrusion; 30. Slide groove. Detailed Implementation

[0031] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0032] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0033] The prefabricated, formwork-free column disclosed in this invention is mainly applied in the construction technology of concrete columns when wooden formwork is used. Construction workers need to use external tools to assemble and fix the wooden formwork, which is cumbersome, complex and time-consuming. After the concrete and steel reinforcement are poured and formed, the wooden formwork needs to be disassembled. When the construction workers remove the wooden formwork, the contact surface between the wooden formwork and the concrete is prone to sticking. During disassembly and assembly, the wooden formwork will pull on the concrete surface, thereby damaging the surface of the concrete column. Moreover, after the wooden formwork is used many times, the splicing seams between the wooden formwork are obvious, resulting in a rough concrete column surface and reduced flatness, thus affecting the quality of the concrete column surface.

[0034] Reference Figures 1-10A prefabricated, non-removable formwork column includes a formwork plate 1, with multiple sets of structural vertical reinforcing bars 9 inside the formwork plate 1, multiple sets of rod-shaped connectors 7 on the inner side of the formwork plate 1, and stirrups 8 wrapped around the outer surface of the multiple sets of structural vertical reinforcing bars 9. An assembly plate 6 is provided at one end of the formwork plate 1, and an angle bracket 10 is provided above the formwork plate 1. Multiple sets of fastener connectors 13 are provided on the inner side of the assembly plate 6, and steel wire cables 20 are provided at the connection between the stirrups 8 and the structural vertical reinforcing bars 9. The column also includes a support mechanism: the support mechanism includes a groove 2 formed on the outer surface of the formwork plate 1, a rotating rod 3 rotatably connected to the inner side wall of the groove 2, a connecting plate 4 fixedly connected to the outer surface of the rotating rod 3, and a support rod 5 fixedly connected to the bottom end of the connecting plate 4. A fixing component is provided inside the groove 2. A splicing mechanism is provided on the outer side of the formwork plate 1 and is used for quick assembly of the formwork. An installation mechanism is provided on the inner side wall of the formwork plate 1 and is used for convenient installation of parts inside the formwork.

[0035] In this embodiment, by setting up a support mechanism, when concrete is poured into the interior of the membrane column, the support rod 5 can be driven to contact the ground by flipping the connecting plate 4 outward, thereby increasing the support force of the membrane plate 1 and preventing the flow force generated when the concrete pours in from causing the membrane plate 1 to be blown open, thus improving the support stability of the membrane plate 1.

[0036] Among them, reference Figure 2 and Figure 3 In a preferred embodiment, the splicing mechanism includes clips 11 disposed on both sides of the outer wall of the mold plate 1, and buckles 12 disposed on the outer side of the clips 11. The buckles 12 are evenly arranged on the outer side of the clips 11 around the central axis of the clips 11. Mounting frames 16 are fixedly connected to both sides of the outer wall of the assembly plate 6. Mounting grooves 14 are opened inside the mounting frames 16. The inner side of the mounting grooves 14 is evenly opened with locking holes 15 around the central axis of the mounting grooves 14. The size of the clips 11 is adapted to the size of the mounting grooves 14, and the size of the buckles 12 is adapted to the size of the locking holes 15.

[0037] In this embodiment, by setting up a splicing mechanism, when the workers install the membrane shell column, after placing two sets of mold shell plates 1 at the installation location, the assembly plate 6 is inserted to splice the assembly plate 6 and the mold shell plate 1. This allows the mounting frame 16 on the outer side of the assembly plate 6 and the two sets of locking strips 11 on the outer side of the mold shell plate 1 to be quickly spliced ​​together. The multiple sets of buckles 12 on the inner sidewalls of the two sets of locking strips 11 and the multiple sets of locking holes 15 opened inside the mounting groove 14 can be engaged, which can increase the connection stability between the mounting frame 16 and the locking strips 11, while preventing large gaps from forming at the connection between the mold shell plate 1 and the assembly plate 6, achieving the effect of convenient installation and improving work efficiency.

[0038] Among them, reference Figure 4 and Figure 8In a preferred embodiment, the installation mechanism includes a fixing block 17 disposed on the inner sidewall of the mold plate 1. One end of the fixing block 17 is fixedly connected to an insert 18. Both sides of the inner wall of the insert 18 are provided with shrinkage grooves 27. A rotating strip 28 is rotatably connected inside the shrinkage groove 27. A protrusion 29 is fixedly connected to the front end of the rotating strip 28. A clamping groove is provided at the top end of the rotating strip 28. The protrusion 29 extends into the interior of the insert 18 through the shrinkage groove 27.

[0039] In this embodiment, by setting up an installation mechanism, when the worker installs the pressure-resistant parts inside the mold plate 1, one end of the part can be inserted into the inside of the insert 18, so that one end of the part presses against the protrusion 29 extending into the inside of the insert 18, causing the protrusion 29 to drive the rotating strip 28 fixedly connected at one end to rotate. Since there is a clamping groove at the top of the rotating strip 28, the rotating strip 28 can lock the end of the part inserted, without the need for external parts to achieve the effect of installation and locking, thus achieving the effect of convenient installation of parts.

[0040] Among them, reference Figure 6 and Figure 10 In a preferred embodiment, the fixing component includes a movable groove 24 formed inside the recess 2, a sliding groove 30 formed on the inner side of the movable groove 24, a spring block 26 slidably connected inside the sliding groove 30, an insert rod 21 fixedly connected to one side of the spring block 26, a connecting groove 19 formed on one side of the movable groove 24, an extrusion plate 25 fixedly connected to both ends of the rotating rod 3, the insert rod 21 being horizontally and vertically arranged above the connecting groove 19, the spring block 26 and the extrusion plate 25 being arranged on the same horizontal plane, a sealing gasket 22 being provided on the inner wall of the mold shell plate 1, the sealing gasket 22 and the connecting groove 19 being mutually penetrating, and a connecting mesh 23 being provided on the inner wall of the mold shell plate 1, the coverage area of ​​the connecting mesh 23 being the same as the area of ​​the inner wall of the mold shell plate 1.

[0041] In this embodiment, by setting a fixing component, after the concrete is poured in and during the initial forming of the concrete, the shrinking support mechanism causes the support mechanism to drive the two sets of extrusion plates 25 to rotate simultaneously, so that the two sets of extrusion plates 25 extrude the spring block 26 on the same horizontal plane. The sliding of the spring block 26 can drive the insertion rod 21 to move, so that the insertion rod 21 extends through the connecting groove 19 into the interior of the mold plate 1 and is inserted into the concrete. At the same time, a connecting net 23 is set at the connection between the mold plate 1 and the concrete, which can increase the stability of the connection between the mold plate 1 and the concrete.

[0042] Working principle: During use, the operator flips the connecting plate 4, which is fixedly connected to the outer surface of the rotating rod 3, so that the connecting plate 4 drives the support rod 5, which is fixedly connected to the bottom end, to contact the ground. This provides stable support for the formwork plate 1. After the concrete is initially formed, the operator moves the connecting plate 4 to rotate the extrusion plate 25, which is fixedly connected to both ends of the rotating rod 3. Since the extrusion plate 25 and the spring block 26 are set on the same horizontal plane, the extrusion plate 25 can be flipped to extrude the spring block 26. This causes the spring block 26 to slide along the guide track of the slide groove 30, so that the insertion rod 21, which is fixedly connected to the bottom end of the spring block 26, extends into the interior of the connecting groove 19. The insertion rod 21 extends into the interior of the formwork plate 1 through the sealing gasket 22 and is inserted into the concrete, increasing the connection stability between the formwork plate 1 and the concrete.

[0043] The above are merely preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Substitutions may include replacements of some structures, devices, or method steps, or may be complete technical solutions. Equivalent substitutions or modifications made to the technical solutions and inventive concepts of the present invention should all be covered within the scope of protection of the present invention.

Claims

1. A prefabricated, non-removable formwork column, comprising a formwork plate (1), wherein the interior of the formwork plate (1) is provided with multiple sets of structural vertical reinforcing bars (9), the inner side of the formwork plate (1) is provided with multiple sets of rod-shaped connectors (7), the outer surfaces of the multiple sets of structural vertical reinforcing bars (9) are wrapped with stirrups (8), one end of the formwork plate (1) is provided with an assembly plate (6), the top of the formwork plate (1) is provided with an angle bracket (10), the inner side of the assembly plate (6) is provided with multiple sets of fastener connectors (13), and a steel wire cable (20) is provided at the connection between the stirrups (8) and the structural vertical reinforcing bars (9); characterized in that, Also includes: Support mechanism: The support mechanism includes a groove (2) formed on the outer surface of the mold shell plate (1), a rotating rod (3) is rotatably connected to the inner wall of the groove (2), a connecting plate (4) is fixedly connected to the outer surface of the rotating rod (3), a support rod (5) is fixedly connected to the bottom end of the connecting plate (4), and a fixing component is provided inside the groove (2); splicing mechanism: The splicing mechanism is set on the outer side of the mold shell plate (1), and the splicing mechanism is used for quick assembly of the mold shell; installation mechanism: The installation mechanism is set on the inner wall of the mold shell plate (1), and the installation mechanism is used for convenient installation of parts inside the mold shell; The fixing component includes a movable groove (24) opened inside the groove (2), a sliding groove (30) is opened on the inner side of the movable groove (24), a spring block (26) is slidably connected inside the sliding groove (30), a plug rod (21) is fixedly connected to one side of the spring block (26), a connecting groove (19) is opened on one side of the movable groove (24), and a pressing plate (25) is fixedly connected to both ends of the rotating rod (3). The insertion rod (21) is horizontally and vertically positioned above the connecting groove (19), and the spring block (26) and the extrusion plate (25) are positioned on the same horizontal plane.

2. The assembled, non-removable mold shell column according to claim 1, characterized in that, The splicing mechanism includes clips (11) on both sides of the outer wall of the mold plate (1). Clips (12) are provided on the outer side of the clips (11). The clips (12) are evenly arranged on the outer side of the clips (11) around the central axis of the clips (11). Mounting frames (16) are fixedly connected to both sides of the outer wall of the assembly plate (6). Mounting slots (14) are provided inside the mounting frames (16). Clip holes (15) are evenly provided on the inner side of the mounting slots (14) around the central axis of the mounting slots (14).

3. The assembled, non-removable mold shell column according to claim 2, characterized in that, The size of the clip (11) is adapted to the size of the mounting groove (14), and the size of the buckle (12) is adapted to the size of the clip hole (15).

4. The assembled, non-removable mold shell column according to claim 1, characterized in that, The installation mechanism includes a fixing block (17) disposed on the inner side wall of the mold plate (1). One end of the fixing block (17) is fixedly connected to a tube (18). Both sides of the inner wall of the tube (18) are provided with shrinkage grooves (27). A rotating strip (28) is rotatably connected inside the shrinkage groove (27). A protrusion (29) is fixedly connected to the front end of the rotating strip (28).

5. A prefabricated, non-removable mold shell column according to claim 4, characterized in that, The top of the rotating bar (28) is provided with a clamping groove, and the protrusion (29) extends into the interior of the insert (18) through the shrinkage groove (27).

6. The assembled, non-removable mold shell column according to claim 1, characterized in that, The inner wall of the mold plate (1) is provided with a connecting mesh (23), and the coverage area of ​​the connecting mesh (23) is the same as the area of ​​the inner wall of the mold plate (1).

7. A prefabricated, non-removable mold shell column according to claim 1, characterized in that, The inner wall of the mold plate (1) is provided with a sealing gasket (22), and the sealing gasket (22) and the connecting groove (19) penetrate each other.

Citation Information

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