Basement dense rib beam top plate concrete rapid forming equipment and method

Abstract

The invention relates to the technical field of concrete rapid forming equipment, and discloses basement dense rib beam top plate concrete rapid forming equipment which comprises an inner mold shell, an outer mold shell and a liftable lifting column, the inner mold shell and the outer mold shell are connected with each other, the thermal expansion coefficients of the inner mold shell and the outer mold shell are different, and four L-shaped clamping plates are installed on the bottom face of the inner mold shell; a positioning hole is formed in each L-shaped clamping plate, the lifting column is provided with a clamping and fixing assembly connected with the corresponding L-shaped clamping plate in a clamped mode, a fixing base is installed at the top end of the lifting column, a top die base is arranged above the fixing base, a vibrator is installed on the bottom face of the top die base, and a profiling supporting bag is installed between the fixing base and the top die base. The characteristic that the polyethylene material of the outer mold shell is large in thermal expansion coefficient is utilized, the electric heating wire in the profiling supporting bag is started for heating during demolding, the outer mold shell is rapidly expanded, a gap is generated between the inner mold shell and concrete, friction force is greatly reduced, and demolding is easily completed.

Description

Technical Field

[0001] The present invention relates to the technical field of concrete rapid forming equipment, and more specifically, the present invention relates to a basement ribbed beam roof concrete rapid forming equipment and method. Background Art

[0002] In the field of basement ribbed beam roof concrete construction, there are many problems in traditional technologies, which seriously restrict the construction efficiency and quality. Specifically as follows:

[0003] 1. The formwork is easily damaged and the concrete forming quality is poor. The traditional formwork has a single material or an unreasonable combination of thermal expansion coefficients. Under the influence of temperature changes caused by the hydration heat of concrete, the phenomenon of thermal expansion and contraction is obvious. This makes the formwork prone to cracking, resulting in the leakage of concrete slurry;

[0004] 2. Demoulding is difficult and it is easy to damage the concrete structure and the formwork. When the traditional formwork is demoulded, it adheres tightly to the concrete, and a large amount of manpower and material resources are required for the demoulding operation. During the forced demoulding process, it is extremely easy to damage the concrete structure, such as problems like chipping and surface cracks, which affect the structural integrity and appearance quality of the basement ribbed beam roof. In addition, repeated forced demoulding will also cause the formwork to deform, reducing the reusability of the formwork and increasing the construction cost;

[0005] 3. The installation of the inner formwork is not firm. The traditional installation method of the inner formwork is mostly simple bundling or plugging, with poor stability and it is not convenient to realize the profiling and internal support fixation of the formwork during forming;

[0006] 4. The concrete vibration is insufficient, the setting speed is slow and the surface flatness is poor: The traditional concrete vibration and curing methods are relatively simple, the vibration effect is not good, and it is difficult to fully discharge the air bubbles inside the concrete, resulting in insufficient compactness and reduced strength of the concrete. At the same time, the concrete setting speed is slow, prolonging the construction period and increasing the construction cost;

[0007] 5. It is impossible to monitor the operation status of the equipment and construction parameters in real time;

[0008] Based on this, the present invention provides a basement ribbed beam roof concrete rapid forming equipment and method to solve the technical problems proposed in the above background art. Summary of the Invention

[0009] In order to overcome the deficiencies of the prior art, the present invention provides a basement ribbed beam roof concrete rapid forming equipment and method. The present invention utilizes the characteristic of the large thermal expansion coefficient of the outer formwork made of polyethylene material. When demoulding, the electric heating wire inside the profiling support bladder is turned on to heat, so that the outer formwork expands rapidly, creating a gap between the inner formwork and the concrete, greatly reducing the friction force and easily completing the demoulding.

[0010] To achieve the above object, the present invention provides the following technical solution: A rapid concrete forming device for the ribbed beam roof slab of a basement, comprising an inner formwork and an outer formwork connected to each other and a liftable lifting column. The inner formwork and the outer formwork have different coefficients of thermal expansion. Four L-shaped clamping plates are installed on the bottom surface of the inner formwork, and a positioning hole is provided in each L-shaped clamping plate. A clamping assembly for clamping with the L-shaped clamping plate is provided on the lifting column. A fixed seat is installed at the top end of the lifting column, and a top formwork seat is provided above the fixed seat. A vibrator is installed on the bottom surface of the top formwork seat. A profiling support bladder is installed between the fixed seat and the top formwork seat. The profiling support bladder is lined with an electric heating wire. The inner cavity of the profiling support bladder is communicated with a pneumatic control mechanism. A sealing ring and a forming mold box are respectively installed on the inner formwork. A concrete forming cavity is provided between the forming mold box and the outer formwork. A distance-adjusting lead screw is rotatably installed on the bottom surface of the top formwork seat, and the distance-adjusting lead screw is in transmission connection with the fixed seat.

[0011] As a preferred technical solution of the present invention, the clamping assembly includes four locking plates slidably installed on the fixed seat. A positioning block cooperating with the positioning hole is fixedly installed on each locking plate. A clamping ring is slidably sleeved on the lifting column. A clamping lead screw is rotatably installed on the fixed seat, and the clamping lead screw is in transmission connection with the clamping ring. A connecting arm is hinged between each locking plate and the clamping ring.

[0012] As a preferred technical solution of the present invention, it further includes a base. A column is fixedly installed on the base. The lifting column is slidably installed on the column. A lifting lead screw is rotatably installed on the lifting column, and the lifting lead screw is in transmission connection with the column. A storage battery and a single-chip microcomputer are respectively installed on the column, and the single-chip microcomputer is powered by the storage battery.

[0013] As a preferred technical solution of the present invention, the pneumatic control mechanism includes a piston tube installed on the column. A piston rod is slidably connected to the inner wall of the piston tube. A pressure piston cooperating with the piston tube is fixedly provided at the bottom end of the piston rod. A one-way intake valve and a control pressure hose are respectively communicated with the bottom of the piston tube. A one-way exhaust valve is fixedly provided at the connection of the control pressure hose and the piston tube. A through air flow channel with an open bottom end is fixedly opened inside the distance-adjusting lead screw. The port of the control pressure hose is rotatably communicated with the through air flow channel. A group of air permeable holes distributed in a circumferential array are provided on the distance-adjusting lead screw. The inner cavity of the profiling support bladder is communicated with the through air flow channel through the air permeable holes. A pressure relief valve is communicated with the control pressure hose. A pressure gauge is installed on the pressure relief valve, and the data end of the pressure gauge is in data connection with the single-chip microcomputer.

[0014] As a preferred technical solution of the present invention, the outer mold shell is made of polyethylene, the inner mold shell is made of polycarbonate, the coefficient of thermal expansion of the outer mold shell is 2 to 4 times that of the inner mold shell, and the thickness of the outer mold shell is 2.5 times that of the inner mold shell.

[0015] As a preferred technical solution of the present invention, the rated heating temperature of the heating wire is 80°C - 120°C, the profiling support bladder is made of silicone rubber, and the cross-sectional shape of the concrete forming cavity between the inner mold shell and the outer mold shell is a ribbed beam structure.

[0016] As a preferred technical solution of the present invention, it further includes a vibration sensor and a temperature sensor installed on the top mold base and a displacement sensor installed on the fixed seat, and the data ends of the vibration sensor, temperature sensor, and displacement sensor are all connected to the data of the single-chip microcomputer.

[0017] As a preferred technical solution of the present invention, the forming mold box includes four concrete baffles spliced in sequence, and a set of connecting frames are arranged between every two concrete baffles, and a set of positioning and installation holes matching the concrete baffles are opened around the fixed seat.

[0018] As a preferred technical solution of the present invention, a method for rapid forming of a ribbed beam roof slab of a basement includes the following steps:

[0019] SS01. Equipment assembly preparation: Fix the base, install the column on the base, slide the lifting column on the column, and install the lifting screw rod so that it is in transmission connection with the column. Install the storage battery and the single-chip microcomputer on the column to supply power to the equipment and provide a control basis. Align the four L-shaped clamping plates on the bottom surface of the inner mold shell with the clamping components on the lifting column, rotate the clamping screw rod to drive the clamping ring to slide, and push the locking plate through the connecting arm so that the positioning block inserts into the positioning hole of the L-shaped clamping plate to complete the stable connection between the inner mold shell and the lifting column. Connect the outer mold shell and the inner mold shell, build the concrete forming cavity, splice the four concrete baffles in sequence through the connecting frames, and install them in the positioning and installation holes around the fixed seat to form the forming mold box;

[0020] SS02. Concrete pouring: After installing the inner mold shell, the outer mold shell, and the forming mold box, ensure that the sealing ring is installed in place to prevent the leakage of concrete slurry, and pour concrete into the concrete forming cavity between the forming mold box and the outer mold shell;

[0021] SS03. Vibration and profiling support to accelerate solidification: After the concrete pouring is completed, start the vibrator on the bottom surface of the top mold base to vibrate the concrete to make the concrete more dense and uniform and remove the air bubbles in it. At the same time, the profiling support bladder fully expands and closely adheres to the concrete surface;

[0022] SS04. Injection molding control. The piston rod of the pneumatic pressure regulating mechanism for downward pressing. The bulging piston moves within the piston tube, inhales air through the one-way air inlet valve, and then presses the air into the profiling support bladder through the pressure control hose, air flow channel, and ventilation holes to make it expand. The pressure gauge monitors the pressure within the pressure control hose in real time and transmits the data to the single-chip microcomputer. When the pressure exceeds the set value, the single-chip microcomputer controls the pressure relief valve to open for pressure relief;

[0023] SS05. Demolding. When the concrete pouring is completed and reaches a certain strength, turn on the heating wire within the profiling support bladder to heat the entire mold shell. Since the polyethylene material of the outer mold shell has a large coefficient of thermal expansion, its expansion degree far exceeds that of the polycarbonate material of the inner mold shell when heated. As the temperature rises, the outer mold shell expands rapidly, gradually creating a gap between the inner mold shell and the concrete. At this time, the friction between the outer mold shell and the concrete is greatly reduced, and workers can easily separate the outer mold shell and the inner mold shell from the concrete to complete the demolding operation. After demolding, stop heating, and the mold shell cools naturally. The outer mold shell and the inner mold shell return to their initial dimensions due to thermal expansion and contraction, waiting for the next use.

[0024] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0025] 1. The present invention utilizes the characteristic that the polyethylene material of the outer mold shell has a large coefficient of thermal expansion. When demolding, turn on the heating wire within the profiling support bladder to heat, causing the outer mold shell to expand rapidly, creating a gap between the inner mold shell and the concrete, greatly reducing the friction, and easily completing the demolding, avoiding damage such as edge chipping and surface cracks to the concrete structure caused by traditional demolding methods, ensuring the structural integrity and appearance quality of the ribbed slab roof of the basement. At the same time, the mold shell can return to its initial dimensions after thermal expansion and contraction, improving the repeated use performance of the mold shell and reducing the construction cost. This is an innovative breakthrough for traditional demolding problems.

[0026] 2. The present invention adopts an outer mold shell made of polyethylene material with a coefficient of thermal expansion three times that of the inner mold shell and an inner mold shell made of polycarbonate material, and the thickness of the outer mold shell is 2.5 times that of the inner mold shell. This design enables the outer mold shell to better adapt to the temperature change of the concrete hydration heat, reducing the risk of mold shell cracking. The inner mold shell ensures strength and stability, effectively solving the problems of damage caused by thermal expansion and contraction of traditional mold shells and poor concrete forming quality, improving the concrete forming quality, and extending the service life of the mold shell.

[0027] 3. The present invention sets a clamping component on the lifting column that is clamped with the L-shaped clamping plate of the inner mold shell. Rotate the clamping screw rod to drive the clamping ring, and through the connecting arm, push the locking plate to insert the positioning block into the positioning hole, realizing the stable connection between the inner mold shell and the lifting column, solving the problem of poor stability of simple bundling or plugging of traditional inner mold shells, and avoiding the shaking of the inner mold shell during construction from affecting the concrete forming quality, providing a reliable support basis for concrete forming.

[0028] 4. In the present invention, after the concrete is poured, the vibrator is started to vibrate the concrete to make it dense and uniform, and the air bubbles are removed. At the same time, the profiling support bladder is heated, and its formwork closely adheres to the concrete surface, accelerating solidification. This effectively solves the problems of insufficient vibration, slow solidification speed, and poor surface flatness of traditional concrete, improves the density and strength of the concrete, shortens the construction period, reduces the workload of post-construction surface treatment, improves the construction efficiency and quality, and shows significant differences from traditional vibration and curing methods.

[0029] 5. The present invention is equipped with vibration sensors, temperature sensors, and displacement sensors, and the data is transmitted to the single-chip microcomputer in real time. The single-chip microcomputer intelligently controls the operation of the equipment accordingly, such as adjusting the vibrator frequency, the temperature of the heating wire, the height of the lifting column, etc., realizing the intelligent and automatic control of the construction process, solving the problem that traditional construction cannot be monitored in real time, improving the stability and controllability of the construction quality, reducing the quality problems caused by human factors, and having obvious innovation and progress in construction control. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 is a schematic structural diagram of a rapid concrete forming device for the ribbed beam roof of a basement according to the present invention;

[0031] Figure 2 is the present invention Figure 1 of the sectional structural diagram;

[0032] Figure 3 is the present invention Figure 2 of the partial enlarged structural diagram at A;

[0033] Figure 4 is the present invention Figure 2 of the partial enlarged structural diagram at B;

[0034] Figure 5 is the schematic structural diagram of the forming mold box of the present invention;

[0035] Figure 6 is the schematic structural diagram of the outer formwork of the present invention;

[0036] Figure 7 is the present invention Figure 6 of the partial enlarged structural diagram at C;

[0037] Figure 8 is the schematic structural diagram of the top mold base and the distance adjusting screw rod of the present invention;

[0038] Figure 9 is the present invention Figure 8 of the partial enlarged structural diagram at D;

[0039] Figure 10 is the schematic structural diagram of the fixed seat and the clamping screw rod of the present invention.

[0040] In the figure: 1, inner formwork shell; 2, outer formwork shell; 3, lifting column; 4, L-shaped clamping plate; 5, positioning hole; 6, fixed seat; 7, top formwork seat; 8, vibrator; 9, profiling support bladder; 10, heating wire; 11, sealing ring; 12, forming mold box; 13, distance-adjusting screw rod; 14, locking plate; 15, positioning block; 16, clamping ring; 17, clamping screw rod; 18, connecting arm; 19, base; 20, column; 21, lifting screw rod; 22, storage battery; 23, single-chip microcomputer; 24, piston tube; 25, piston rod; 26, one-way air inlet valve; 27, pressure control hose; 28, air vent hole; 29, pressure relief valve; 30, pressure gauge; 31, vibration sensor; 32, temperature sensor; 33, displacement sensor; 34, connecting frame; 35, positioning and installation hole. Specific embodiments

[0041] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0042] As Figures 1 to 10 shown, the present invention provides a rapid concrete forming device for the ribbed beam roof slab of a basement, including an interconnected inner formwork shell 1 and outer formwork shell 2 and a liftable lifting column 3;

[0043] It further includes a base 19, on which a column 20 is fixedly installed. The lifting column 3 is slidably installed on the column 20. A lifting screw rod 21 is rotatably installed on the lifting column 3, and the lifting screw rod 21 is in transmission connection with the column 20. A storage battery 22 and a single-chip microcomputer 23 are respectively installed on the column 20, and the single-chip microcomputer 23 is powered by the storage battery 22;

[0044] During actual operation, by rotating the lifting screw rod 21 and using the screw rod transmission principle, the lifting column 3 can be accurately controlled to move up and down along the column 20. This design solves the problem of inconvenient height adjustment of the equipment. In the construction scenario of the ribbed beam roof slab of a basement, the position of the equipment can be flexibly adjusted according to different construction height requirements. Compared with traditional fixed-height equipment or methods that rely on complex mechanical structures to adjust height, this solution is more convenient and accurate in operation, greatly improving the construction efficiency. Moreover, the configuration of the storage battery 22 and the single-chip microcomputer 23 provides the power and control basis for the automatic operation of the equipment;

[0045] The outer formwork shell 2 is made of polyethylene material, and the inner formwork shell 1 is made of polycarbonate material. The coefficient of thermal expansion of the outer formwork shell 2 is 3 times that of the inner formwork shell 1, and the thickness of the outer formwork shell 2 is 2.5 times that of the inner formwork shell 1;

[0046] The beneficial effect of adopting the above scheme is that during the concrete pouring and molding process, as the temperature changes, the outer formwork 2 can better adapt to the temperature changes caused by the heat of concrete hydration due to its larger thermal expansion coefficient, reducing the risk of formwork rupture caused by temperature stress, while the polycarbonate material of the inner formwork 1 ensures good strength and stability, and is not easy to deform while supporting the concrete. The design of the material and thickness of the inner and outer formwork 2 solves the problem of damage to the traditional formwork due to thermal expansion and contraction and poor concrete molding quality. Compared with the traditional formwork with a single material or an unreasonable thermal expansion coefficient, the service life of the formwork is greatly improved, the frequency of replacing the formwork is reduced, the construction cost is reduced, and the quality of concrete molding is improved.

[0047] Before pouring concrete on the top slab of the basement multi-rib beam, first assemble the inner and outer formwork shells 2 to build a concrete forming cavity;

[0048] When the concrete pouring is completed and reaches a certain strength, the electric heating wire 10 in the contour support bag 9 is turned on to heat the entire formwork. Since the polyethylene material of the outer formwork 2 has a large thermal expansion coefficient, the expansion degree when heated is much greater than that of the polycarbonate material of the inner formwork 1. As the temperature rises, the outer formwork 2 expands rapidly, and a gap is gradually generated between the inner formwork 1 and the concrete. At this time, the friction between the outer formwork 2 and the concrete is greatly reduced, and the workers can easily separate the outer formwork 2 and the inner formwork 1 from the concrete to complete the demoulding operation. After demoulding, the heating is stopped, and the formwork cools naturally. The outer formwork 2 and the inner formwork 1 return to their initial sizes due to thermal expansion and contraction, waiting for the next use;

[0049] This solution solves the technical problems of traditional formwork being difficult to demould, easy to damage concrete structure, and difficult to reuse after demoulding. When demoulding traditional formwork, it is often tightly bonded to concrete, which requires a lot of manpower and material resources to perform demoulding operations, and it is very easy to damage the concrete structure during the demoulding process. At the same time, repeated forced demoulding may cause deformation of the formwork, affecting its reusability.

[0050] The thermal expansion coefficients of the inner mold shell 1 and the outer mold shell 2 are different. Four L-shaped cardboards 4 are installed on the bottom surface of the inner mold shell 1. A positioning hole 5 is provided in each L-shaped cardboard 4. A clamping component connected with the L-shaped cardboard 4 is provided on the lifting column 3. A fixing seat 6 is installed on the top of the lifting column 3.

[0051] The clamping assembly includes four locking plates 14 slidably mounted on the fixing seat 6, each locking plate 14 is fixedly mounted with a positioning block 15 that matches the positioning hole 5, the lifting column 3 is slidably sleeved with a clamping ring 16, a clamping screw 17 is rotatably mounted on the fixing seat 6, the clamping screw 17 is transmission-connected with the clamping ring 16, and a connecting arm 18 is hinged between each locking plate 14 and the clamping ring 16;

[0052] When the internal formwork shell 1 needs to be installed, align the L-shaped clamping plate 4 of the internal formwork shell 1 with the clamping assembly on the lifting column 3, rotate the clamping screw rod 17, the clamping screw rod 17 drives the clamping ring 16 to slide on the lifting column 3, and through the connecting arm 18, push the locking plate 14 to move inward, so that the positioning block 15 is inserted into the positioning hole 5 of the L-shaped clamping plate 4, thereby realizing the firm connection between the internal formwork shell 1 and the lifting column 3. This solves the problems of unstable installation and easy shaking of the internal formwork shell 1, ensures the stability of the internal formwork shell 1 during the construction process, and avoids affecting the concrete forming quality due to the displacement of the internal formwork shell 1. Compared with the traditional simple bundling or plug-in installation methods, this clamping method is more firm and reliable, can effectively reduce the quality hidden dangers during the construction process. At the same time, through the L-shaped structure setting of the L-shaped clamping plate 4, it is convenient for the internal formwork shell 1 and the external formwork shell 2 to be quickly demolded downward;

[0053] Above the fixed seat 6, there is a top formwork seat 7. A vibrator 8 is installed on the bottom surface of the top formwork seat 7. Between the fixed seat 6 and the top formwork seat 7, a profiling support bladder 9 is installed. The profiling support bladder 9 is lined with a heating wire 10, and the inner cavity of the profiling support bladder 9 is communicated with a pneumatic control mechanism;

[0054] The rated heating temperature of the heating wire 10 is 110 °C. The profiling support bladder 9 is made of silicone rubber. The cross-sectional shape of the concrete forming cavity between the internal formwork shell 1 and the external formwork shell 2 is a ribbed beam structure;

[0055] After the concrete is poured, start the vibrator 8. The vibrator 8 vibrates the concrete to make the concrete more dense and uniform, and remove the air bubbles in it. At the same time, turn on the heating wire 10 to heat the profiling support bladder 9 to 110 °C. The silicone rubber profiling support bladder 9 expands when heated, and can closely fit the concrete surface, playing a role in profiling support and accelerating the solidification of the concrete. This solves the problems of insufficient concrete vibration, slow solidification speed and poor surface flatness after forming. Compared with the traditional vibration and curing methods, this solution not only improves the density and strength of the concrete, but also speeds up the solidification speed of the concrete, shortens the construction period, and can make the concrete surface more flat and smooth, reducing the workload of subsequent surface treatment. For example, in the construction of a basement roof slab, there are still many air bubbles in the concrete after vibration in the traditional construction method, and the solidification time takes 48 hours. After adopting this solution, the concrete air bubbles are significantly reduced, the solidification time is shortened to 36 hours, and the surface flatness meets the high-standard requirements, reducing subsequent surface treatment processes such as grinding;

[0056] The air pressure regulating mechanism comprises a piston tube 24 mounted on the column 20, the inner wall of the piston tube 24 is slidably connected with a piston rod 25, the bottom end of the piston rod 25 is fixedly provided with a pressure piston matched with the piston tube 24, the bottom of the piston tube 24 is respectively connected with a one-way air inlet valve 26 and a pressure control hose 27, a one-way air outlet valve is fixedly provided at the connection point between the pressure control hose 27 and the piston tube 24, a ventilation flow channel with a bottom opening is fixedly provided inside the pitch adjusting screw rod 13, and the port of the pressure control hose 27 is rotatably connected with the ventilation flow channel;

[0057] The ventilation channel is axially connected to the pitch adjusting screw rod 13, and its bottom end is connected to the pressure control hose 27 through a sealed bearing.

[0058] A group of vent holes 28 distributed in a circumferential array are provided on the pitch adjusting screw rod 13, and the inner cavity of the contoured support bag 9 is connected to the ventilation flow channel through the vent holes 28. A pressure relief valve 29 is connected to the pressure control hose 27, and a pressure gauge 30 is installed on the pressure relief valve 29. The data end of the pressure gauge 30 is connected to the single chip computer 23.

[0059] The piston rod 25 is pressed down, and the pressure piston moves in the piston tube 24, sucking air through the one-way air inlet valve 26, and then pressing the air into the contour support bag 9 through the pressure control hose 27, the ventilation flow channel and the air vent 28 to expand it. The pressure gauge 30 monitors the pressure in the pressure control hose 27 in real time and transmits the data to the single-chip microcomputer 23. When the pressure exceeds the set value, the single-chip microcomputer 23 controls the pressure relief valve 29 to open and release the pressure. This solves the problem that the inflation pressure of the contour support bag 9 is difficult to control, ensuring that the contour support bag 9 works at a suitable pressure, which not only ensures that it can Effectively support concrete, and avoid damage to the support bag or affect the quality of concrete molding due to excessive pressure. Compared with the traditional way of inflation based on experience or simple mechanical control of inflation pressure, the air pressure control mechanism realizes precise control and automatic adjustment of pressure, and improves the safety and reliability of equipment operation. In practical applications, the traditional inflation method often causes damage to the contour support bag 9 or defects in concrete molding due to unstable pressure. After adopting the air pressure control mechanism, the incidence of such problems is significantly reduced, and the service life of the contour support bag 9 is extended by about 30%;

[0060] A sealing ring 11 and a forming mold box 12 are respectively installed on the inner mold shell 1, a concrete forming cavity is set between the forming mold box 12 and the outer mold shell 2, and a distance adjusting screw rod 13 is rotatably installed on the bottom surface of the top mold base 7, and the distance adjusting screw rod 13 is transmission-connected with the fixed base 6;

[0061] The beneficial effect of adopting the above solution is that when the inner formwork 1 and the outer formwork 2 are installed, the sealing ring 11 can effectively prevent the leakage of concrete slurry, thereby ensuring that the concrete is smoothly formed in the forming cavity.

[0062] The forming die box 12 includes four successively spliced concrete baffles. A set of connecting frames 34 are arranged between every two concrete baffles. A set of positioning and installation holes 35 that cooperate with the concrete baffles are provided around the fixed seat 6.

[0063] When assembling the forming die box 12, the concrete baffles are successively spliced through the connecting frames 34 and installed in the positioning and installation holes 35 around the fixed seat 6. This spliced design is convenient for disassembly and assembly, transportation and storage. Moreover, the positioning and installation holes 35 ensure the accuracy of the installation of the concrete baffles, guaranteeing the overall structural stability of the forming die box 12. This solves the problems of inconvenient transportation and difficult-to-guarantee installation accuracy of traditional integral die boxes. Compared with traditional integral die boxes, the forming die box 12 reduces the transportation cost, improves the installation efficiency and construction accuracy.

[0064] It also includes a vibration sensor 31 and a temperature sensor 32 installed on the top die seat 7 and a displacement sensor 33 installed on the fixed seat 6. The data terminals of the vibration sensor 31, the temperature sensor 32 and the displacement sensor 33 are all data-connected to the single-chip microcomputer 23.

[0065] During the operation of the equipment, the vibration sensor 31 monitors the vibration condition of the vibrator 8 in real time, the temperature sensor 32 monitors the temperature change during the concrete pouring and forming process, and the displacement sensor 33 monitors the displacement change between the fixed seat 6 and the top die seat 7. These sensors transmit the data to the single-chip microcomputer 23 in real time. The single-chip microcomputer 23 intelligently controls the operation state of the equipment according to these data, such as adjusting the vibration frequency of the vibrator 8, controlling the heating temperature of the heating wire 10, adjusting the height of the lifting column 3, etc. This solves the problem of being unable to monitor the operation state of the equipment and the concrete construction parameters in real time, realizing the intelligent and automatic control of the construction process. Compared with the traditional manual experience judgment and manual control method, it improves the stability and controllability of the construction quality and reduces the construction quality problems caused by human factors.

[0066] A method for rapid forming of the concrete of the ribbed beam roof slab in the basement includes the following steps:

[0067] SS01, equipment assembly preparation, fix the base 19, install the column 20 on the base 19, slide the lifting column 3 on the column 20, and install the lifting screw 21 to make it connected with the column 20 in transmission, install the battery 22 and the single-chip computer 23 on the column 20 to power the equipment and provide a control basis, align the four L-shaped card plates 4 on the bottom of the inner mold shell 1 with the clamping assembly on the lifting column 3, rotate the clamping screw 17 to drive the clamping ring 16 to slide, push the locking plate 14 through the connecting arm 18, and insert the positioning block 15 into the positioning hole 5 of the L-shaped card plate 4 to complete the stable connection between the inner mold shell 1 and the lifting column 3, connect the outer mold shell 2 with the inner mold shell 1, build the concrete molding cavity, splice the four concrete baffles in sequence through the connecting frame 34, and install them in the positioning and mounting holes 35 around the fixing seat 6 to form a molding mold box 12;

[0068] SS02, concrete pouring, after installing the inner formwork 1, the outer formwork 2 and the forming mold box 12, ensure that the sealing ring 11 is installed in place to prevent leakage of concrete slurry, and pour concrete into the concrete forming cavity between the forming mold box 12 and the outer formwork 2;

[0069] SS03, vibration and profiling support accelerate solidification. After the concrete is poured, the vibrator 8 on the bottom of the top mold base 7 is started to vibrate the concrete to make the concrete more compact and uniform, and remove the bubbles therein. At the same time, the profiling support bag 9 is fully expanded and closely fits the concrete surface;

[0070] SS04, injection pressure control, the piston rod 25 of the air pressure regulating mechanism is pressed down, the pressure piston moves in the piston tube 24, air is sucked in through the one-way air inlet valve 26, and then the air is pressed into the contour support bag 9 through the pressure control hose 27, the ventilation channel and the air vent 28 to expand it. The pressure gauge 30 monitors the pressure in the pressure control hose 27 in real time and transmits the data to the single chip computer 23. When the pressure exceeds the set value, the single chip computer 23 controls the pressure relief valve 29 to open for pressure relief;

[0071] SS05, demoulding. When the concrete pouring is completed and reaches a certain strength, the electric heating wire 10 in the contoured support bag 9 is turned on to heat the entire mold shell. Since the polyethylene material of the outer mold shell 2 has a large thermal expansion coefficient, the degree of expansion when heated is much greater than that of the polycarbonate material of the inner mold shell 1. As the temperature rises, the outer mold shell 2 expands rapidly, and a gap is gradually generated between the inner mold shell 1 and the concrete. At this time, the friction between the outer mold shell 2 and the concrete is greatly reduced, and the workers can easily separate the outer mold shell 2 and the inner mold shell 1 from the concrete to complete the demoulding operation. After demoulding, stop heating, and the mold shell cools naturally. The outer mold shell 2 and the inner mold shell 1 return to their initial size due to thermal expansion and contraction, waiting for the next use.

[0072] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0073] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A rapid prototyping device for concrete top slab of basement multi-rib beam, comprising an inner formwork (1) and an outer formwork (2) connected to each other and a lift column (3), characterized in that: The thermal expansion coefficients of the inner mold shell (1) and the outer mold shell (2) are different. Four L-shaped card plates (4) are installed on the bottom surface of the inner mold shell (1). Each of the L-shaped card plates (4) has a positioning hole (5). The lifting column (3) is provided with a clamping component that is clamped with the L-shaped card plate (4). A fixing seat (6) is installed on the top of the lifting column (3). A top mold seat (7) is provided above the fixing seat (6). A vibrator (8) is installed on the bottom surface of the top mold seat (7). The fixing seat (6) A contour support bag (9) is installed between the top mold base (7), the contour support bag (9) is lined with an electric heating wire (10), the inner cavity of the contour support bag (9) is connected to a gas pressure control mechanism, a sealing ring (11) and a molding mold box (12) are respectively installed on the inner mold shell (1), a concrete molding cavity is set between the molding mold box (12) and the outer mold shell (2), and a distance adjusting screw (13) is rotatably installed on the bottom surface of the top mold base (7), and the distance adjusting screw (13) is transmission-connected to the fixed base (6).

2. The rapid prototyping equipment for basement multi-ribbed beam top slab concrete according to claim 1, characterized in that: The clamping assembly comprises four locking plates (14) slidably mounted on a fixing seat (6), a positioning block (15) matched with a positioning hole (5) being fixedly mounted on each locking plate (14), a clamping ring (16) being slidingly sleeved on the lifting column (3), a clamping screw (17) being rotatably mounted on the fixing seat (6), the clamping screw (17) being transmission-connected to the clamping ring (16), and a connecting arm (18) being hingedly connected between each locking plate (14) and the clamping ring (16).

3. The rapid prototyping equipment for basement multi-ribbed beam top slab concrete according to claim 1 is characterized by: The invention also comprises a base (19), a column (20) is fixedly mounted on the base (19), the lifting column (3) is slidably mounted on the column (20), a lifting screw (21) is rotatably mounted on the lifting column (3), the lifting screw (21) is transmission-connected to the column (20), a storage battery (22) and a single-chip microcomputer (23) are respectively mounted on the column (20), and the single-chip microcomputer (23) is powered by the storage battery (22).

4. The rapid prototyping equipment for basement multi-ribbed beam top slab concrete according to claim 1, characterized in that: The air pressure regulating mechanism comprises a piston tube (24) mounted on a column (20), the inner wall of the piston tube (24) being slidably connected with a piston rod (25), the bottom end of the piston rod (25) being fixedly provided with a pressure piston cooperating with the piston tube (24), the bottom of the piston tube (24) being respectively connected with a one-way air inlet valve (26) and a pressure control hose (27), the connection point between the pressure control hose (27) and the piston tube (24) being fixedly provided with a one-way air outlet valve, the inner wall of the pitch adjusting screw rod (13) being provided with a pressure regulating ... pressure regulating piston cooperating with the piston tube (24) being fixedly provided with a pressure regulating piston cooperating with the piston tube (24), the pressure regulating piston rod (13) being fixedly provided with a pressure regulating piston cooperating with the piston tube (24), the pressure regulating piston rod (13) being fixedly provided with a pressure regulating piston cooperating with the piston tube (24), the pressure regulating piston rod (13) being fixedly provided with a pressure regulating piston cooperating with the piston tube (24), the pressure regulating piston rod (13) being fixedly provided with a pressure regulating piston cooperating with the piston tube (24), the pressure regulating piston rod (13) being fixedly provided with a pressure regulating piston cooperating with the piston tube (24), the pressure regulating piston rod (13) being fixedly provided with a pressure regulating piston cooperating with the piston tube (24), the pressure regulating piston rod (13) being fixedly provided with a pressure regulating piston cooperating with the piston tube (2 A ventilation flow channel with a bottom opening is fixedly provided on the top of the pressure control hose (27), a port of the pressure control hose (27) is rotatably connected to the ventilation flow channel, a group of air holes (28) distributed in a circumferential array are provided on the pitch adjustment screw (13), the inner cavity of the contoured support bag (9) is connected to the ventilation flow channel through the air holes (28), a pressure relief valve (29) is connected to the pressure control hose (27), a pressure gauge (30) is installed on the pressure relief valve (29), and a data end of the pressure gauge (30) is connected to the single chip computer (23).

5. The rapid prototyping equipment for basement multi-ribbed beam top slab concrete according to claim 1, characterized in that: The outer mold shell (2) is made of polyethylene, the inner mold shell (1) is made of polycarbonate, the thermal expansion coefficient of the outer mold shell (2) is 2 to 4 times the thermal expansion coefficient of the inner mold shell (1), and the thickness of the outer mold shell (2) is 2.5 times the thickness of the inner mold shell (1).

6. The rapid prototyping equipment for basement multi-ribbed beam top slab concrete according to claim 1, characterized in that: The rated heating temperature of the heating wire (10) is 80°C-120°C, the contoured support bag (9) is made of silicone rubber, and the cross-sectional shape of the concrete forming cavity between the inner mold shell (1) and the outer mold shell (2) is a multi-rib beam structure.

7. The rapid prototyping equipment for basement multi-ribbed beam top slab concrete according to claim 1, characterized in that: It also includes a vibration sensor (31) and a temperature sensor (32) installed on the top mold base (7) and a displacement sensor (33) installed on the fixed base (6), wherein the data ends of the vibration sensor (31), the temperature sensor (32) and the displacement sensor (33) are all data-connected to the single-chip computer (23).

8. The rapid prototyping equipment for basement multi-ribbed beam top slab concrete according to claim 1 is characterized by: The molding mold box (12) includes four concrete baffles spliced ​​in sequence, a group of connection frames (34) are arranged between each pair of the concrete baffles, and a group of positioning and mounting holes (35) cooperating with the concrete baffles are opened around the fixing seat (6).

9. A rapid prototyping method for basement multi-ribbed beam top slab concrete according to any one of claims 1 to 8, characterized in that: The following steps are involved: SS01. Equipment assembly preparation: fix the base (19), install the column (20) on the base (19), slide the lifting column (3) on the column (20), install the lifting screw (21) so that it is connected to the column (20), install the battery (22) and the single-chip microcomputer (23) on the column (20) to provide power for the equipment and provide a control basis, align the four L-shaped clamping plates (4) on the bottom surface of the inner mold shell (1) with the clamping components on the lifting column (3), and rotate the clamping screw (21) to rotate the lifting screw (21). The rod (17) drives the clamping ring (16) to slide, and pushes the locking plate (14) through the connecting arm (18), so that the positioning block (15) is inserted into the positioning hole (5) of the L-shaped clamping plate (4), and the inner mold shell (1) is firmly connected with the lifting column (3), and the outer mold shell (2) is connected with the inner mold shell (1), and the concrete forming cavity is built. The four concrete baffles are spliced ​​in sequence through the connecting frame (34), and installed in the positioning installation holes (35) around the fixing seat (6), so as to form a forming mold box (12); SS02, concrete pouring, after installing the inner mold shell (1), the outer mold shell (2) and the forming mold box (12), ensure that the sealing ring (11) is installed in place to prevent leakage of concrete slurry, and pour concrete into the concrete forming cavity between the forming mold box (12) and the outer mold shell (2); SS03, vibration and contour support to accelerate solidification. After the concrete is poured, the vibrator (8) on the bottom of the top mold base (7) is started to vibrate the concrete to make it more compact and uniform, and remove the bubbles therein. At the same time, the contour support bag (9) is fully expanded to fit the concrete surface tightly. SS04, injection pressure control, the piston rod (25) of the air pressure control mechanism is pressed down, the pressure piston moves in the piston tube (24), air is sucked in through the one-way air inlet valve (26), and the air is pressed into the contour support bag (9) through the pressure control hose (27), the ventilation channel and the air vent (28) to expand the air. The pressure gauge (30) monitors the pressure in the pressure control hose (27) in real time and transmits the data to the single chip microcomputer (23). When the pressure exceeds the set value, the single chip microcomputer (23) controls the pressure relief valve (29) to open for pressure relief; SS05, demoulding. When the concrete pouring is completed and reaches a certain strength, the electric heating wire (10) in the contoured support bag (9) is turned on to heat the entire mold shell. Since the polyethylene material of the outer mold shell (2) has a large thermal expansion coefficient, the expansion degree when heated is much greater than that of the polycarbonate material of the inner mold shell (1). As the temperature rises, the outer mold shell (2) expands rapidly, and a gap is gradually generated between the inner mold shell (1) and the concrete. At this time, the friction between the outer mold shell (2) and the concrete is greatly reduced. The worker can easily separate the outer mold shell (2) and the inner mold shell (1) from the concrete to complete the demoulding operation. After demoulding, the heating is stopped, and the mold shell cools naturally. The outer mold shell (2) and the inner mold shell (1) return to their initial size due to thermal expansion and contraction, waiting for the next use.

Images