A method for combining concrete and steel structure for teaching building construction

Abstract

The present invention discloses a method for building a teaching building by combining concrete and steel structures, which comprises the following steps: S1, steel structure installation: installing each steel structure on the foundation in sequence in cooperation with a lifting device, so that the steel structures can be preliminarily spliced ​​into a preliminary shape of a building; S2, casting mold preparation: fixing the casting template around the outside of the steel structure by a fixing device, so that the template can form a casting chamber on the outside of the steel structure, and preparing concrete for casting; the present invention can adjust the position of the outlet of the end of the casting main pipe by installing a side plate through the cooperation of a swing support rod and a guide end wheel, and can also actively drive the end of the casting main pipe to swing, so that the casting main pipe can fully adapt to the complex conditions inside the mold cavity during the casting process, effectively preventing the phenomenon of insufficient casting due to the influence of the complex structure of the mold cavity during the concrete casting process, and thus effectively improving the effect of concrete casting.

Description

Technical Field

[0001] The invention relates to the technical field of concrete pouring, and in particular to a method for combining concrete and steel structure for building a teaching building. Background Art

[0002] In the construction process of modern teaching buildings, a combination of steel structure and concrete structure can be used, which can combine the advantages of both steel structure and reinforced concrete structure, improve the comprehensive performance, have greater torsion and overturning resistance, good earthquake resistance, and the steel structure is light in weight and has good ductility. Secondly, the contact surface between the two is increased and the air is reduced. Secondly, different improvements can be made according to the site requirements, which can shorten the construction period and increase the construction speed. The corresponding pouring device needs to be used in the process of concrete pouring;

[0003] However, at present, when pouring concrete inside the mold cavity composed of the steel structure and the formwork through the pouring device, the internal space distribution structure of the mold cavity becomes more complex and diverse due to the limitation of the steel structure's own structure, making it impossible for the concrete to quickly fill the mold cavity during the pouring process of the building. As a result, the continuous pouring of concrete requires multiple manual interventions to ensure the normal flow of concrete during the pouring process, thereby reducing the convenience of the steel structure and concrete composite structure during the pouring process. Summary of the invention

[0004] The present invention provides a method for combining concrete and steel structure for building teaching buildings, which can effectively solve the problem proposed in the above background technology that when pouring the interior of a mold cavity composed of a steel structure and a template through a pouring device, the internal space distribution structure of the mold cavity becomes more complex and diverse due to the limitation of the steel structure itself, so that the concrete cannot quickly fill the mold cavity during the pouring process of the building, so that manual intervention is required multiple times during the continuous pouring of the concrete to ensure the normal flow of the concrete during the pouring process, thereby reducing the convenience of the steel structure and concrete composite structure during the pouring process.

[0005] To achieve the above object, the present invention provides the following technical solution: a method for constructing a teaching building by combining concrete and steel structure, comprising the following steps:

[0006] S1. Steel structure installation: Use the lifting equipment to install each steel structure on the foundation in sequence, so that the steel structure can be initially assembled into the initial shape of the building;

[0007] S2. Preparation of casting mold: fix the casting template around the outside of the steel structure through the fixing device, so that the template can enclose a casting chamber outside the steel structure, and prepare the concrete for casting;

[0008] S3, pouring head adjustment and placement: the pouring main pipe is placed inside the pouring mold cavity by installing the side plate in conjunction with the swing support rod and the guide end wheel, and the concrete at the bottom of the mold cavity is vibrated by the vibrating thin rod during the pouring process. At the same time, the inner diameter of the pouring main pipe is adjusted by the expansion vertical bag during the pouring process, and the inside of the pouring cavity is blown and cleaned by blowing the bottom box;

[0009] S4, solidification and hardening: After pouring, wait for the concrete to harden naturally, and remove the external formwork after the concrete hardens to achieve pouring and hardening of the concrete;

[0010] S5. Inspection and acceptance: After the concrete has completely hardened, the properties of the poured concrete material shall be inspected by the corresponding equipment to ensure that the physical properties of the hardened concrete meet the standards before acceptance.

[0011] According to the above technical solution, a telescopic movable installation mechanism is provided at the bottom of the outer side of the pouring main pipe, and the telescopic movable installation mechanism guides the end of the pouring main pipe through the movable spliced ​​components, so that the pouring main pipe is smoothly installed in the pouring chamber, so as to limit the end of the pouring main pipe during the pouring process;

[0012] The telescopic movable mounting mechanism includes a mounting side plate;

[0013] The outer sides of the pouring main pipe are provided with mounting side plates, the middle part of the mounting side plate close to the outer side of the pouring main pipe is provided with a central arc groove, the inner part of the pouring main pipe is bonded with a connecting rubber sheet, one end of the mounting side plate is provided with mounting inner grooves at positions corresponding to the two ends of the pouring main pipe, and a telescopic adjusting rod is fixedly installed inside the mounting inner groove;

[0014] The edges of both ends of the mounting side plate are provided with positioning angle grooves, and the mounting side box is clamped inside the positioning angle grooves, and a contraction transverse hole is provided at the middle of the side surface of the mounting side box corresponding to the end position of the mounting side plate, and an adjustable telescopic rod is fixedly installed at the middle of one end inside the contraction transverse hole, and the end of the adjustable telescopic rod is fixedly connected to an elastic connecting rod, and a telescopic return spring is wound around the outer side of the adjustable telescopic rod corresponding to the inner position of the contraction transverse hole, and the end of the adjustable telescopic rod is fixedly connected to a swing support rod, and a guide end wheel is rotatably installed on the inner side of the end of the swing support rod through a rotating shaft;

[0015] Both ends of the bottom of the two installation side plates are embedded with installation side blocks, a vibrating thin rod is fixedly installed in the middle of the bottom surface of the installation side block, and an isolation film is interspersed and bonded to the middle of the outer sides of the four vibrating thin rods.

[0016] According to the above technical solution, the two sides of the connecting rubber sheets are connected to the outer side of the casting main pipe by glue, and the two ends of the telescopic adjustment rod are distributed and fixedly connected between the two mounting side plates. The two mounting side plates correspond to each other and the outer edges of the mounting side plates are flush with each other.

[0017] According to the above technical solution, the shrinkage transverse hole synchronously penetrates the mounting side box and the mounting side plate, one end of the telescopic reset spring is fixedly connected to the inner wall of the shrinkage transverse hole, and the other end of the telescopic reset spring is fixedly connected to the end of the elastic connecting rod, the bottom of the swing support rod is movably connected to the inner bottom of the mounting side box through a rotating shaft, and the isolation film can be freely telescopic and deformed.

[0018] According to the above technical solution, an outer flexible expansion adjustment mechanism is provided at the middle of the outer side of the pouring main pipe, and the inner diameter of the pouring main pipe is adjusted by sucking and transporting the liquid outside the pouring main pipe, so as to adjust the flow rate of the concrete transported inside the pouring main pipe;

[0019] The outer flexible expansion adjustment mechanism includes a connecting horizontal bar;

[0020] A connecting horizontal bar is fixedly installed on the top edge of the two mounting side plates, and a mounting thin cable is fixedly connected to the middle of the top surface of the connecting horizontal bar at equal distances, and a mounting bottom ring is fixedly connected to the top of multiple mounting thin cables, and a mounting arc bar is symmetrically fixedly connected to the outer side of the top surface of the mounting bottom ring, and a connecting outer cable is evenly fixedly connected to the middle of the top surface of the mounting arc bar, and a protective cloth is bonded to the gap between the connecting outer cables, and the tops of multiple connecting outer cables are commonly connected to the mounting top ring;

[0021] A flexible sheath is sleeved between the mounting bottom ring and the mounting top ring corresponding to the outer side of the casting main pipe, a liquid guide top ring is bonded at the top of the flexible sheath at the bottom position of the mounting top ring, and an expansion vertical bag is bonded equidistantly along the circumferential direction at the bottom surface of the liquid guide top ring corresponding to the internal position of the flexible sheath, an infusion top pipe is fixedly connected to the middle part of one side of the top of the liquid guide top ring, a regulating valve is fixedly connected to the outer end of the infusion top pipe, a connecting rear pipe is fixedly installed in the middle of one end of the regulating valve, a connecting sleeve is sleeved on the outer side of the end of the connecting rear pipe through a thread, a liquid guide middle pipe is sleeved on one end of the connecting sleeve through a thread, the outer side of the end of the liquid guide middle pipe is connected to the liquid guide rear pipe through a connecting sleeve, and the end of the liquid guide rear pipe is fixedly connected to a two-way infusion pump;

[0022] A liquid supply box is fixedly installed at the tail of the bidirectional infusion pump, a liquid adding port is arranged at a corner of the top surface of the liquid supply box, and a heating inner tube is fixedly installed at a corner of the bottom inside the liquid supply box.

[0023] According to the above technical solution, the installation thin rope and the connecting outer rope can both be flexibly deformed, the connection between the protective cloth and the connecting outer rope remains smooth, and a gap is left between the side of the protective cloth and the outer side of the flexible sheath.

[0024] According to the above technical solution, the inner cavity of the liquid-conducting top ring is connected to the inner cavity of the expansion vertical bag, the outer sides of the expansion vertical bag are tightly fitted with the outer sides of the casting main pipe and the inner sides of the flexible sheath respectively, the length of the liquid-conducting middle tube can be adjusted as needed, and the bidirectional infusion pump and the heating inner tube are both powered by an external power supply.

[0025] According to the above technical solution, an internal and external circulation cleaning mechanism is arranged on the outside of the flexible sheath, and the internal and external circulation cleaning mechanism is used to drive the gas inside the casting mold cavity to circulate, remove a small amount of impurities remaining inside the mold cavity, and at the same time, perform auxiliary heating on the inside of the mold cavity during the circulation of the airflow to balance the temperature inside the casting mold cavity;

[0026] The internal and external circulation cleaning mechanism includes a connecting arc box;

[0027] A connecting arc box is provided on one side of the top of the mounting top ring, and flexible air ducts are fixedly connected to the two ends of the bottom surface of the connecting arc box corresponding to the outer position of the flexible sheath, and a vibration short tube is fixedly connected to the bottom end of the flexible air duct, and a mounting cross is fixedly connected to the top and bottom ends of the inner side of the vibration short tube, and a mounting shaft is rotatably installed between the two mounting crosses at the corresponding inner position of the vibration short tube, and driving spiral plates are fixedly connected to the two ends of the outer side of the mounting shaft corresponding to the top and bottom positions of the inner side of the vibration short tube, an eccentric block is sleeved on the middle part of the outer side of the vibration short tube, and the end of the flexible air duct is fixedly connected to a blowing bottom box corresponding to the bottom position of the mounting bottom ring;

[0028] A long air guide tube is fixedly connected to the middle of one side of the connecting arc box, a circulating fan is fixedly connected to the end of the long air guide tube, the circulating fan is powered by an external power supply, a circulating air box is fixedly installed at the tail of the circulating fan, a fine filter mesh is fixedly installed in the middle of the inner side of the circulating air box, a collecting duct is fixedly connected to one end of the bottom of the circulating air box corresponding to the bottom position of the fine filter mesh, and a collecting ring box is fixedly connected to the end of the collecting duct corresponding to the outer position of the casting main pipe.

[0029] According to the above technical solution, the flexible air duct and the vibration short tube are alternately distributed equidistantly along the outside of the flexible sheath, and the outsides of the flexible air duct and the vibration short tube are tightly fitted with the outside of the flexible sheath, and the bottom surface of the blowing bottom box is evenly provided with blowing holes.

[0030] According to the above technical solution, the outer side of the filter fine mesh is tightly slidably fitted with the inner wall of the circulating bellows, the outer inner ring of the collecting ring box is tightly slidably fitted with the outer side of the casting main pipe, and the bottom surface of the collecting ring box is evenly provided with collecting holes.

[0031] Compared with the prior art, the present invention has the following beneficial effects: the present invention has a scientific and reasonable structure and is safe and convenient to use:

[0032] 1. A telescopic movable installation mechanism is provided. Through the mutual cooperation between the components inside the telescopic movable installation mechanism, the pouring process of concrete is optimized. The bottom end of the pouring main pipe is counterweighted by installing the side plate and the components thereon to lower the overall center of gravity of the pouring main pipe, so that the pouring main pipe will not shake significantly after being inserted into the pouring mold cavity, effectively improving the stability of the pouring main pipe during the pouring process. In addition, through the mutual cooperation between the telescopic adjustment rod and the adjustment telescopic rod, the spacing between the installation side plates can be adjusted according to the shape of the mold inside the mold during the lifting and lowering of the pouring main pipe inside the mold cavity. At the same time, the position of the guide end wheel can be quickly adjusted through the telescopic adjustment of different adjustment telescopic rods. Then, through the cooperation of the swing support rod and the guide end wheel, the position of the outlet of the end of the pouring main pipe can be adjusted through the installation side plate. At the same time, the end of the pouring main pipe can be actively driven to swing, so that the pouring main pipe can fully adapt to the complex conditions inside the mold cavity during the pouring process, effectively preventing the phenomenon of insufficient pouring due to the influence of the complex structure of the mold cavity during the concrete pouring process, thereby effectively improving the effect of concrete pouring;

[0033] At the same time, the vibrating thin rod can also be used to synchronously vibrate the poured concrete at the bottom during the pouring process, so that the poured concrete can fall quickly during the vibration process, thereby effectively removing the bubbles and gaps left over from the concrete pouring process. At the same time, the isolation film can also effectively prevent the dirt splashed during the vibration of the vibrating thin rod from splashing upward to the outside of the installation side panel, thereby effectively improving the cleanliness of the outside of the installation side panel and further optimizing the concrete pouring process.

[0034] 2. An outer flexible expansion adjustment mechanism is provided. Through the mutual cooperation between the components inside the outer flexible expansion adjustment mechanism, the transportation process of concrete inside the pouring main pipe is optimized. By installing thin cables, connecting outer cables and protective cloth, the outer side of the pouring main pipe is strengthened and protected, and the overall stress condition of the pouring main pipe is effectively improved, effectively preventing the pouring main pipe from being damaged due to excessive load during the pouring process, thereby effectively improving the overall structural strength of the pouring main pipe. When the concrete flow rate inside the pouring main pipe needs to be adjusted, the inner cavity shape of the pouring main pipe can be adjusted by the liquid guide top ring and the expansion vertical bag, thereby effectively changing the friction between the pouring main pipe and the concrete, realizing the adjustment of the concrete flow rate inside the pouring main pipe, effectively preventing concrete splashing and defects after pouring caused by the excessively fast concrete falling speed, and further improving the concrete pouring process;

[0035] At the same time, the multi-stage pipeline design connecting the rear pipe, the liquid guiding middle pipe and the liquid guiding rear pipe makes the position setting of the liquid guiding top ring and the liquid supply box more flexible. When the inside of the pouring main pipe needs to be cleaned after use, the expansion vertical bag drives the inner diameter of the pouring main pipe to expand and contract alternately, so that the solidified concrete film on the inner wall of the pouring main pipe can be actively squeezed and broken and actively fall from the inside, thereby effectively improving the convenience of using and cleaning the pouring equipment.

[0036] 3. An internal and external circulation cleaning mechanism is provided. Through the mutual cooperation between the components inside the internal and external circulation cleaning mechanism, the airflow circulation process inside the mold cavity during the pouring process is optimized. The circulating airflow generated by the circulating fan can drive the airflow inside the mold cavity to circulate actively, and clean the dust and impurities inside the mold cavity during the airflow circulation process, thereby effectively improving the cleanliness inside the mold cavity. At the same time, the circulating airflow is heated by the pouring main pipe and the expansion vertical bag, and then the mold cavity is preheated during the airflow circulation process, so as to increase the overall temperature inside the pouring mold cavity, so that the temperature inside the mold cavity can be kept relatively balanced, effectively preventing the phenomenon of uneven solidification due to the large temperature difference between the concrete temperature and the temperature inside the mold cavity during the concrete pouring process, thereby effectively improving the overall pouring quality of the concrete;

[0037] At the same time, through the structural design of the movable collecting ring box, the collecting ring box can be located at the top opening of the mold cavity for a long time during the pouring project, so that the airflow blown out from the blowing bottom box can be collected and circulated through the collecting ring box, and the dust blown out can be collected through the cooperation of the circulating bellows and the filter fine mesh, thereby effectively preventing the dust inside the mold cavity from flying around and causing pollution to the surrounding air, thereby effectively improving the environmental protection performance during the concrete pouring process, and at the same time, through the circulation of the airflow inside the mold cavity, the heat loss efficiency of the circulating airflow inside the mold cavity is greatly reduced, thereby effectively improving the overall use effect of the pouring device.

[0038] In summary, the overall concrete pouring process is optimized through the mutual cooperation between the components of the telescopic movable installation mechanism, the outer flexible expansion adjustment mechanism and the internal and external circulation cleaning mechanism. The quick adjustment of the concrete pouring position is achieved by actively guiding the bottom position of the pouring main pipe, which optimizes the pouring process of the pouring main pipe inside the complex mold cavity and improves the concrete pouring effect. At the same time, by adjusting the inner diameter of the pouring main pipe, the concrete transportation rate inside the pouring main pipe is adjusted, thereby effectively preventing the phenomenon of splashing everywhere during the concrete pouring process. At the same time, by adjusting the temperature inside the pouring mold cavity, the temperature distribution inside the pouring mold cavity is effectively improved, thereby effectively improving the concrete pouring effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0040] In the attached picture:

[0041] Figure 1 is a flow chart of the steps of the present invention;

[0042] Figure 2 It is a schematic diagram of the structure of the present invention;

[0043] Figure 3 It is a structural schematic diagram of the installation of the swing support rod of the present invention;

[0044] Figure 4 It is a structural schematic diagram of the telescopic movable installation mechanism of the present invention;

[0045] Figure 5 It is a structural schematic diagram of the installation of the vibrating thin rod of the present invention;

[0046] Figure 6 It is a structural schematic diagram of the connection film installation of the present invention;

[0047] Figure 7 It is a structural schematic diagram of the outer flexible expansion adjustment mechanism of the present invention;

[0048] Figure 8 It is a structural schematic diagram of the installation of the liquid-conducting tube of the present invention;

[0049] Fig. 9 It is a structural schematic diagram of the installation of the protective cloth of the present invention;

[0050] Fig.10 It is a structural schematic diagram of the internal and external circulation cleaning mechanism of the present invention;

[0051] Fig.11 It is a structural schematic diagram of the eccentric block installation of the present invention;

[0052] Numbers in the figure: 1. Casting main pipe;

[0053] 2. Telescopic movable installation mechanism; 201. Install side plate; 202. Center arc groove; 203. Connecting film; 204. Install inner groove; 205. Telescopic adjustment rod; 206. Positioning angle groove; 207. Install side box; 208. Contraction horizontal hole; 209. Adjust telescopic rod; 210. Elastic connecting rod; 211. Telescopic return spring; 212. Swing support rod; 213. Guide end wheel; 214. Install side block; 215. Vibrating thin rod; 216. Isolation film;

[0054] 3. Outer flexible expansion adjustment mechanism; 301. Connecting horizontal bars; 302. Installing thin cables; 303. Installing bottom rings; 304. Installing arc-shaped bars; 305. Connecting outer cables; 306. Protective cloth; 307. Installing top rings; 308. Flexible sheaths; 309. Top rings for liquid guides; 310. Inflatable vertical bladder; 311. Top tubes for infusion; 312. Regulating valves; 313. Connecting rear tubes; 314. Connecting sleeves; 315. Middle tubes for liquid guides; 316. Rear tubes for liquid guides; 317. Two-way infusion pumps; 318. Liquid supply boxes; 319. Liquid filling ports; 320. Heating inner tubes;

[0055] 4. Internal and external circulation cleaning mechanism; 401. Connecting arc box; 402. Flexible air duct; 403. Vibrating short pipe; 404. Installing cross; 405. Installing rotating shaft; 406. Driving spiral plate; 407. Eccentric block; 408. Blowing bottom box; 409. Long air guide tube; 410. Circulating fan; 411. Circulating bellows; 412. Filter fine mesh; 413. Collecting duct; 414. Collecting ring box. DETAILED DESCRIPTION

[0056] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0057] Example: Figure 1 As shown, the present invention provides a technical solution, a method for building a teaching building by combining concrete and steel structure, comprising the following steps:

[0058] S1. Steel structure installation: Use the lifting equipment to install each steel structure on the foundation in sequence, so that the steel structure can be initially assembled into the initial shape of the building;

[0059] S2. Preparation of casting mold: fix the casting template around the outside of the steel structure through the fixing device, so that the template can enclose a casting chamber outside the steel structure, and prepare the concrete for casting;

[0060] S3, adjusting and placing the pouring head: by installing the side plate 201, cooperating with the swing support rod 212 and the guide end wheel 213, the pouring main pipe 1 is placed inside the pouring mold cavity, and the concrete at the bottom of the mold cavity is vibrated by the vibrating thin rod 215 during the pouring process. At the same time, during the pouring process, the inner diameter of the pouring main pipe 1 is adjusted by the expansion vertical bag 310, and the inside of the pouring chamber is blown and cleaned by the blowing bottom box 408;

[0061] S4, solidification and hardening: After pouring, wait for the concrete to harden naturally, and remove the external formwork after the concrete hardens to achieve pouring and hardening of the concrete;

[0062] S5. Inspection and acceptance: After the concrete has completely hardened, the properties of the poured concrete material shall be inspected using appropriate equipment to ensure that the physical properties of the hardened concrete meet the standards before acceptance.

[0063] like Figure 2-11 As shown, a telescopic movable installation mechanism 2 is provided at the bottom of the outer side of the pouring main pipe 1, and the telescopic movable installation mechanism 2 guides the end of the pouring main pipe 1 through the movable spliced ​​components, so that the pouring main pipe 1 is smoothly installed in the pouring chamber, so as to limit the end of the pouring main pipe 1 during the pouring process;

[0064] The telescopic movable mounting mechanism 2 comprises a mounting side plate 201, a central arc groove 202, a connecting film 203, a mounting inner groove 204, a telescopic adjustment rod 205, a positioning angle groove 206, a mounting side box 207, a contraction transverse hole 208, an adjustment telescopic rod 209, an elastic connecting rod 210, a telescopic return spring 211, a swing support rod 212, a guide end wheel 213, a mounting side block 214, a vibrating thin rod 215 and an isolation film 216;

[0065] Both sides of the outside of the pouring main pipe 1 are provided with mounting side plates 201, a central arc groove 202 is provided in the middle of the mounting side plate 201 close to the outside of the pouring main pipe 1, a connecting rubber sheet 203 is bonded inside the pouring main pipe 1, and mounting inner grooves 204 are provided at one end of the mounting side plate 201 corresponding to the positions of both ends of the pouring main pipe 1, and a telescopic adjustment rod 205 is fixedly installed inside the mounting inner groove 204, and the sides of the two connecting rubber sheets 203 are connected to the outside of the pouring main pipe 1 by adhesive, and the two ends of the telescopic adjustment rod 205 are distributed between the two mounting side plates 201 and fixedly connected, and the two mounting side plates 201 correspond to each other and the outer edges of the mounting side plates 201 are flush with each other;

[0066] The mounting side plate 201 is provided with positioning angle grooves 206 at both ends of the edge, and a mounting side box 207 is clamped inside the positioning angle groove 206. A contraction transverse hole 208 is provided at the middle of the side of the mounting side box 207 corresponding to the end of the mounting side plate 201. An adjustment telescopic rod 209 is fixedly installed at the middle of one end inside the contraction transverse hole 208. An elastic connecting rod 210 is fixedly connected to the end of the adjustment telescopic rod 209. A telescopic return spring 211 is wound around the outer side of the adjustment telescopic rod 209 corresponding to the inner position of the contraction transverse hole 208. A swing support rod 212 is fixedly connected to the end of the adjustment telescopic rod 209. A guide end wheel 213 is rotatably installed on the inner side of the end of the swing support rod 212 through a rotating shaft.

[0067] Both ends of the bottom of the two mounting side plates 201 are embedded with mounting side blocks 214, and a vibrating thin rod 215 is fixedly installed in the middle of the bottom surface of the mounting side block 214. An isolation film 216 is interspersed and bonded to the middle of the outer sides of the four vibrating thin rods 215. The contraction transverse hole 208 synchronously penetrates the mounting side box 207 and the mounting side plate 201. One end of the telescopic return spring 211 is fixedly connected to the inner wall of the contraction transverse hole 208, and the other end of the telescopic return spring 211 is fixedly connected to the end of the elastic connecting rod 210. The bottom of the swing support rod 212 is movably connected to the inner bottom of the mounting side box 207 through a rotating shaft. The isolation film 216 can be freely telescopic and deformed. The mutual cooperation between the internal components of the telescopic movable mounting mechanism 2 optimizes the concrete pouring process. The bottom end of the pouring main pipe 1 is counterweighted by the mounting side plate 201 and the components thereon to lower the overall center of gravity of the pouring main pipe 1, so that the pouring main pipe 1 can be inserted into After pouring inside the mold cavity, no significant shaking will occur, which effectively improves the stability of the pouring main pipe 1 during the pouring process, and through the mutual cooperation between the telescopic adjustment rod 205 and the adjustable telescopic rod 209, the pouring main pipe 1 can adjust the spacing between the mounting side plates 201 according to the shape of the mold inside the mold during the lifting process inside the mold cavity, and at the same time, the position of the guide end wheel 213 can be quickly adjusted through the telescopic adjustment of the different adjustable telescopic rods 209, and then the position of the outlet of the end of the pouring main pipe 1 can be adjusted through the mounting side plate 201 through the cooperation of the swing support rod 212 and the guide end wheel 213, and at the same time, the end of the pouring main pipe 1 can be actively driven to swing, so that the pouring main pipe 1 can fully adapt to the complex conditions inside the mold cavity during the pouring process, effectively preventing the phenomenon of insufficient pouring due to the influence of the complex structure of the mold cavity during the concrete pouring process, and thus effectively improving the concrete pouring effect;

[0068] At the same time, the vibrating thin rod 215 can also be used to synchronously vibrate the poured concrete at the bottom during the pouring process, so that the poured concrete can fall quickly during the vibration process, thereby effectively removing the bubbles and gaps left over during the concrete pouring process. At the same time, the isolation film 216 can also effectively prevent the dirt splashed during the vibration of the vibrating thin rod 215 from splashing upward to the outside of the installation side plate 201, thereby effectively improving the cleanliness of the outside of the installation side plate 201 and further optimizing the concrete pouring process.

[0069] An outer flexible expansion regulating mechanism 3 is provided in the middle of the outer side of the pouring main pipe 1, and the inner diameter of the pouring main pipe 1 is adjusted by sucking and transporting the liquid outside the pouring main pipe 1, so as to adjust the flow rate of the concrete transported inside the pouring main pipe 1;

[0070] The outer flexible expansion adjustment mechanism 3 includes a connecting horizontal bar 301, an installation thin cable 302, an installation bottom ring 303, an installation arc bar 304, a connecting outer cable 305, a protective cloth 306, an installation top ring 307, a flexible sheath 308, a liquid guide top ring 309, an expansion vertical bag 310, an infusion top tube 311, a regulating valve 312, a connecting rear tube 313, a connecting sleeve 314, a liquid guide middle tube 315, a liquid guide rear tube 316, a two-way infusion pump 317, a liquid supply box 318, a liquid adding port 319 and a heating inner tube 320;

[0071] A connecting horizontal bar 301 is fixedly installed on the top edge of the two installation side plates 201, and an installation thin cable 302 is fixedly connected to the middle of the top surface of the connecting horizontal bar 301 at an equal distance, and a plurality of installation thin cables 302 are fixedly connected to the top of a mounting bottom ring 303, and an installation arc bar 304 is symmetrically fixedly connected to the outer side of the top surface of the mounting bottom ring 303, and a connecting outer cable 305 is evenly fixedly connected to the middle of the top surface of the mounting arc bar 304, and a protective cloth 306 is bonded at the gap between the connecting outer cables 305, and a mounting top ring 307 is commonly connected to the top of the plurality of connecting outer cables 305, and a flexible sheath 308 is sleeved between the corresponding mounting bottom ring 303 and the mounting top ring 307 on the outer side of the casting main pipe 1, and both the installation thin cables 302 and the connecting outer cables 305 can be flexibly deformed, and the connection between the protective cloth 306 and the connecting outer cables 305 remains smooth, and a gap is left between the side of the protective cloth 306 and the outer side of the flexible sheath 308;

[0072] A top ring 309 is bonded to the top of the flexible sheath 308 at the bottom of the top ring 307, and an expansion vertical bag 310 is bonded to the bottom of the top ring 309 at an equidistant distance along the circumferential direction at the corresponding position inside the flexible sheath 308. A top infusion pipe 311 is fixedly connected to the middle of one side of the top of the top ring 309, and a regulating valve 312 is fixedly connected to the outer end of the top infusion pipe 311. A connecting rear pipe 313 is fixedly installed in the middle of one end of the regulating valve 312. A connecting sleeve 314 is connected to the outer side of the end of the connecting rear pipe 313 through a threaded sleeve, and the inner part of the connecting sleeve 314 is fixedly connected to the outer side of the connecting sleeve 314. One end of the middle tube 315 is connected with a liquid guide tube through a threaded sleeve, the outer side of the end of the middle tube 315 is connected with a liquid guide rear tube 316 through a connecting sleeve 314, and the end of the liquid guide rear tube 316 is fixedly connected with a two-way infusion pump 317, the inner cavity of the liquid guide top ring 309 and the inner cavity of the expansion vertical bag 310 are interconnected, and the outer side of the expansion vertical bag 310 is tightly fitted with the outer side of the pouring main pipe 1 and the inner side of the flexible sheath 308 respectively, the length of the middle tube 315 can be adjusted as needed, and the two-way infusion pump 317 and the heating inner tube 320 are powered by an external power supply;

[0073] A liquid supply box 318 is fixedly installed at the tail of the two-way infusion pump 317, a liquid filling port 319 is provided at a corner of the top surface of the liquid supply box 318, and a heating inner tube 320 is fixedly installed at a corner of the bottom of the inner side of the liquid supply box 318. Through the mutual cooperation between the components inside the outer flexible expansion adjustment mechanism 3, the transportation process of concrete inside the pouring main pipe 1 is optimized. By installing a thin rope 302, connecting an outer rope 305 and a protective cloth 306, the outer side of the pouring main pipe 1 is strengthened and protected, and the overall stress condition of the pouring main pipe 1 is effectively improved, which effectively prevents the pouring main pipe 1 from being poured during pouring. The phenomenon of damage due to excessive load during the pouring process is effectively improved, thereby effectively improving the overall structural strength of the pouring main pipe 1. When the concrete flow rate inside the pouring main pipe 1 needs to be adjusted, the inner cavity shape of the pouring main pipe 1 can be adjusted by the liquid guide top ring 309 and the expansion vertical bag 310, thereby effectively changing the friction between the pouring main pipe 1 and the concrete, realizing the adjustment of the concrete flow rate inside the pouring main pipe 1, effectively preventing concrete splashing caused by the excessively fast concrete falling speed and defects after pouring, and further improving the concrete pouring process;

[0074] At the same time, the multi-stage pipeline design connecting the rear pipe 313, the liquid guiding middle pipe 315 and the liquid guiding rear pipe 316 makes the position setting of the liquid guiding top ring 309 and the liquid supply box 318 more flexible. When the inside of the pouring main pipe 1 needs to be cleaned after use, the expansion of the expansion vertical bag 310 drives the inner diameter of the pouring main pipe 1 to alternately expand and contract, so that the solidified concrete film on the inner wall of the pouring main pipe 1 can be actively squeezed and broken and actively dropped from the inside, thereby effectively improving the convenience of using and cleaning the pouring equipment;

[0075] An internal and external circulation cleaning mechanism 4 is arranged outside the flexible sheath 308, and the internal and external circulation cleaning mechanism 4 is used to drive the gas inside the casting mold cavity to circulate, remove a small amount of impurities remaining inside the mold cavity, and at the same time, perform auxiliary heating on the inside of the mold cavity during the circulation of the airflow to balance the temperature inside the casting mold cavity;

[0076] The internal and external circulation cleaning mechanism 4 includes a connecting arc box 401, a flexible air duct 402, a vibrating short pipe 403, a mounting cross 404, a mounting shaft 405, a driving spiral plate 406, an eccentric block 407, a blowing bottom box 408, a long air guide pipe 409, a circulating fan 410, a circulating air box 411, a filtering fine mesh 412, a collecting duct 413 and a collecting ring box 414;

[0077] A connecting arc box 401 is arranged on one side of the top of the mounting top ring 307, and flexible air ducts 402 are fixedly connected to the outer positions of the flexible sheath 308 at both ends of the bottom surface of the connecting arc box 401, and a vibration short tube 403 is fixedly connected to the bottom end of the flexible air duct 402, and a mounting cross 404 is fixedly connected to the top and bottom ends of the inner side of the vibration short tube 403, and a mounting shaft 405 is rotatably installed between the two mounting crosses 404 at the inner position corresponding to the vibration short tube 403, and the outer ends of the mounting shaft 405 correspond to the vibration short tube 408. 03, a driving spiral plate 406 is fixedly connected at the top and bottom of the inner side, an eccentric block 407 is sleeved at the middle of the outer side of the vibration short tube 403, and a blowing bottom box 408 is fixedly connected at the bottom of the corresponding mounting bottom ring 303 at the end of the flexible air duct 402, and the flexible air duct 402 and the vibration short tube 403 are alternately distributed along the outer side of the flexible sheath 308 at equal distances, and the outer sides of the flexible air duct 402 and the vibration short tube 403 are tightly fitted with the outer side of the flexible sheath 308, and the bottom surface of the blowing bottom box 408 is evenly provided with blowing holes;

[0078] A long air guide tube 409 is fixedly connected to the middle of one side of the connecting arc box 401, and a circulating fan 410 is fixedly connected to the end of the long air guide tube 409. The circulating fan 410 is powered by an external power supply. A circulating air box 411 is fixedly installed at the tail of the circulating fan 410, and a filter fine mesh 412 is fixedly installed in the middle of the inner side of the circulating air box 411. A collecting duct 413 is fixedly connected to the bottom end of the circulating air box 411 corresponding to the bottom position of the filter fine mesh 412, and a collecting ring box 414 is fixedly connected to the end of the collecting duct 413 corresponding to the outer side of the pouring main pipe 1. The outer side of the filter fine mesh 412 is tightly slidably fitted with the inner wall of the circulating air box 411, and the outer inner ring of the collecting ring box 414 is tightly slidably fitted with the outer side of the pouring main pipe 1. The bottom surface of the collecting ring box 414 is evenly provided with collecting holes. The mutual cooperation between the components inside the internal and external circulation cleaning mechanism 4 optimizes the airflow circulation process inside the mold cavity during the pouring process. The circulating airflow generated by the circulating fan 410 can drive the airflow inside the mold cavity to circulate actively, and clean the dust and impurities inside the mold cavity during the airflow circulation process, thereby effectively improving the cleanliness inside the mold cavity. At the same time, the circulating airflow is heated by the pouring main pipe 1 and the expansion vertical bag 310, and the mold cavity is preheated during the airflow circulation process to increase the overall temperature inside the pouring mold cavity, so that the temperature inside the mold cavity can be kept relatively balanced, effectively preventing the phenomenon of uneven solidification due to the large temperature difference between the concrete temperature and the temperature inside the mold cavity during the concrete pouring process, thereby effectively improving the overall pouring quality of the concrete;

[0079] At the same time, through the structural design of the movable collecting ring box 414, the collecting ring box 414 can be located at the top opening of the mold cavity for a long time during the pouring process, so that the airflow blown out by the blowing bottom box 408 can be collected and circulated through the collecting ring box 414, and the dust blown out can be collected through the cooperation of the circulating bellows 411 and the filter fine mesh 412, thereby effectively preventing the dust inside the mold cavity from flying around and causing pollution to the surrounding air, thereby effectively improving the environmental protection performance during the concrete pouring process, and at the same time, through the circulation of the airflow inside the mold cavity, the heat loss efficiency of the circulating airflow inside the mold cavity is greatly reduced, thereby effectively improving the overall use effect of the pouring device.

[0080] Working principle and use process of the present invention: In the actual application process of the present invention, when it is necessary to pour concrete into the mold cavity through the pouring main pipe 1, it is necessary to first insert the end of the pouring main pipe 1 into the mold cavity, and make the outlet of the pouring main pipe 1 deep into the bottom of the mold cavity, install the connecting rubber 203 to one side of the installation side plate 201 through the central arc groove 202, and then install the installation side plate 201 to the outside of the pouring main pipe 1 through the connecting rubber 203. When it is necessary to adjust the position of the installation side plate 201 according to the size of the mold cavity, the two installation side plates 201 are driven to approach each other through the telescopic adjustment rod 205 to reduce the thickness of the horizontal pouring head;

[0081] The mounting side box 207 is mounted to the two ends of the mounting side plate 201 through the positioning angle groove 206, and then the components inside the mounting side box 207 are mounted to the two ends of the mounting side plate 201, and the elastic connecting rod 210 can be driven to overcome the elastic force of the telescopic return spring 211 to shrink by adjusting the telescopic rod 209, and the swing support rod 212 is driven to swing during the movement of the elastic connecting rod 210, and the guide end wheel 213 is driven to swing synchronously during the swinging of the swing support rod 212, so that the outer side of the guide end wheel 213 can fit tightly with the inner wall of the mold cavity, and then the end of the mounting side plate 201 is limited by the guide end wheel 213, so that the end of the pouring main pipe 1 can move evenly along the vertical direction inside the mold cavity during the pouring process;

[0082] At the same time, during the concrete pouring process, after the concrete is poured to the bottom of the mold cavity through the pouring main pipe 1, the vibrating thin rod 215 can be installed to the bottom of the mounting side plate 201 through the mounting side block 214. When the concrete is immersed to the middle position of the vibrating thin rod 215, the vibrating thin rod 215 is started to vibrate the concrete at the bottom of the mold cavity to eliminate the bubbles remaining in the concrete during the pouring process, so that the concrete pouring is more compact, and the bottom of the mounting side plate 201 is isolated and protected by the isolation film 216 to prevent the concrete from splashing upwards;

[0083] When pouring the lower layer inside the mold cavity, due to the large height difference during the concrete pouring process, the concrete transported to the lowest layer will fall too fast. When the falling speed of the concrete needs to be adjusted, the bottom ring 303 and the side plate 201 are fixedly connected by connecting the horizontal bar 301 and the thin cable 302, and the connecting outer cable 305 is installed on the top of the bottom ring 303 by installing the arc bar 304, and the bottom ring 303 and the top ring 307 are connected by installing the arc bar 304 and the connecting outer cable 305, and then the outer side of the pouring main pipe 1 is protected by the thin cable 302 and the connecting outer cable 305 to improve the overall load capacity of the pouring main pipe 1, and the connecting outer cable 305 is protected and limited by the protective cloth 306 to improve the overall structural strength of the pouring main pipe 1;

[0084] When the inner diameter of the pouring main pipe 1 needs to be adjusted, the filling liquid in the liquid supply box 318 can be transported by the two-way infusion pump 317, and the filling liquid is introduced into the interior of the liquid guiding rear pipe 316 by the two-way infusion pump 317, and then introduced into the interior of the liquid guiding middle pipe 315 via the liquid guiding rear pipe 316, and then introduced into the interior of the connecting rear pipe 313 via the liquid guiding middle pipe 315. After the filling liquid in the connecting rear pipe 313 passes through the interior of the regulating valve 312, it will be introduced into the interior of the liquid guiding top ring 309 through the infusion top pipe 311, and finally, the filling liquid will be uniformly introduced into the interior of the expansion vertical bag 310 via the liquid guiding top ring 309. The expansion of the expansion vertical bag 310 can squeeze the pouring main pipe 1, so that the inner diameter of the pouring main pipe 1 is changed, thereby effectively increasing the friction between the pouring main pipe 1 and the concrete, so as to prevent the concrete from falling too fast due to too little resistance during the falling process;

[0085] When necessary, new filling liquid can be added to the liquid supply box 318 through the liquid adding port 319, and the filling liquid in the liquid supply box 318 can be heated by the heating inner tube 320 to prevent the temperature of the filling liquid from being too different from the temperature of the concrete, which may cause the concrete to solidify directly inside the pouring main pipe 1;

[0086] When it is necessary to actively circulate the air flow inside the mold cavity, the circulating fan 410 is used to suck the air flow inside the dynamic circulating bellows 411, and the air flow generated by the circulating fan 410 is introduced into the interior of the connecting arc box 401 through the long air guide tube 409, and the continuously flowing air flow is introduced into the interior of the flexible air duct 402 through the connecting arc box 401, and then the continuously flowing air flow is introduced into the interior of the vibrating short tube 403 through the flexible air duct 402. In the process of the continuously flowing air flow flowing through the interior of the vibrating short tube 403, the spiral plate 406 is driven to drive the installation shaft 405 in the middle of the installation cross 404 to rotate, and then the eccentric block 407 is synchronously driven to rotate during the rotation of the installation shaft 405, and then the vibrating short tube 403 is driven to vibrate at a high frequency during the rotation of the eccentric block 407, and the concrete inside the casting main pipe 1 is vibrated by the vibrating short tube 403, so that the concrete transportation process inside the casting main pipe 1 is smoother;

[0087] At the same time, when the circulating airflow can be continuously blown into the mold cavity by the blowing bottom box 408, a small amount of pollutants inside the mold cavity can be blown upward by the continuous airflow, and in the process of the circulating airflow flowing through the flexible air duct 402 and the vibrating short tube 403, the concrete inside the casting main pipe 1 and the filling liquid inside the expansion vertical bag 310 can be heated, thereby effectively improving the stability of the circulating airflow, and the dust discharged from the top of the mold cavity can be collected by the collecting ring box 414, and the dust and circulating airflow can be introduced into the circulating air box 411 through the collecting duct 413, and in the process of the mixed airflow flowing through the circulating air box 411, the dust in the circulating airflow is intercepted and collected through the filtering fine mesh 412, so as to improve the cleanliness of the circulating airflow.

[0088] Finally, it should be noted that the above description is only a preferred example of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A method for building a teaching building using a combination of concrete and steel structures, characterized in that: A telescopic movable installation mechanism (2) is arranged at the bottom of the outer side of the pouring main pipe (1), and the telescopic movable installation mechanism (2) guides the end of the pouring main pipe (1) through various components that are movably spliced, so that the pouring main pipe (1) is smoothly installed in the pouring chamber, thereby limiting the end of the pouring main pipe (1) during the pouring process; The telescopic movable mounting mechanism (2) comprises a mounting side plate (201); Both sides of the outside of the pouring main pipe (1) are provided with mounting side plates (201); a central arc groove (202) is provided in the middle of one side of the mounting side plate (201) close to the outside of the pouring main pipe (1); a connecting rubber sheet (203) is provided inside the central arc groove (202); one end of the mounting side plate (201) is provided with mounting inner grooves (204) at positions corresponding to both ends of the pouring main pipe (1); a telescopic adjustment rod (205) is fixedly installed inside the mounting inner groove (204); Both ends of the mounting side plate (201) are provided with positioning angle grooves (206), a mounting side box (207) is clamped inside the positioning angle groove (206), a shrinking transverse hole (208) is provided at a middle portion of a side surface of the mounting side box (207) corresponding to a position at the end of the mounting side plate (201), the shrinking transverse hole (208) synchronously penetrates the mounting side box (207) and the mounting side plate (201), an adjusting telescopic rod (209) is fixedly installed at a middle portion of one end inside the shrinking transverse hole (208), an elastic connecting rod (210) is fixedly connected to the end of the adjusting telescopic rod (209), a telescopic return spring (211) is wound around the outer side of the adjusting telescopic rod (209) at a position corresponding to the inner portion of the shrinking transverse hole (208), a swing support rod (212) is fixedly connected to the end of the swing support rod (212), and a guide end wheel (213) is rotatably installed on the inner side of the end of the swing support rod (212) via a rotating shaft; Both ends of the bottom of the two mounting side plates (201) are embedded with mounting side blocks (214), a vibrating thin rod (215) is fixedly mounted in the middle of the bottom surface of the mounting side block (214), and an isolation film (216) is interlaced and bonded in the middle of the outer sides of the four vibrating thin rods (215); An outer flexible expansion regulating mechanism (3) is provided at the middle of the outer side of the pouring main pipe (1), and the inner diameter of the pouring main pipe (1) is adjusted by sucking and transporting the liquid outside the pouring main pipe (1), so as to adjust the flow rate of the concrete transported inside the pouring main pipe (1); The outer flexible expansion adjustment mechanism (3) comprises a connecting horizontal bar (301); A connecting horizontal bar (301) is fixedly installed on the top edge of the two mounting side plates (201), a mounting thin cable (302) is fixedly connected to the middle of the top surface of the connecting horizontal bar (301) at equal intervals, a mounting bottom ring (303) is fixedly connected to the top of a plurality of the mounting thin cables (302), a mounting arc-shaped bar (304) is symmetrically fixedly connected to the outer side of the top surface of the mounting bottom ring (303), a connecting outer cable (305) is evenly fixedly connected to the middle of the top surface of the mounting arc-shaped bar (304), a protective cloth (306) is bonded to the gaps between the connecting outer cables (305), and a mounting top ring (307) is commonly connected to the top of a plurality of the connecting outer cables (305); A flexible sheath (308) is sleeved between the outer side of the pouring main pipe (1) and the mounting bottom ring (303) and the mounting top ring (307); a liquid guide top ring (309) is bonded to the top of the flexible sheath (308) at a position corresponding to the bottom of the mounting top ring (307); and expansion vertical bags (310) are bonded to the bottom surface of the liquid guide top ring (309) at positions corresponding to the inside of the flexible sheath (308) at equal intervals along the circumferential direction; The method comprises the following steps: S1. Steel structure installation: Use the lifting equipment to install each steel structure on the foundation in sequence, so that the steel structure can be initially assembled into the initial shape of the building; S2. Preparation of casting mold: fix the casting template around the outside of the steel structure through the fixing device, so that the template can enclose a casting chamber outside the steel structure, and prepare the concrete for casting; S3, adjusting and placing the pouring head: placing the pouring main pipe (1) inside the pouring mold cavity by installing the side plate (201) in conjunction with the swing support rod (212) and the guide end wheel (213), and vibrating the concrete at the bottom of the mold cavity by the vibrating thin rod (215) during the pouring process, and adjusting the inner diameter of the pouring main pipe (1) by the expansion vertical bag (310) during the pouring process, and blowing and cleaning the inside of the pouring cavity by the blowing bottom box (408); S4, solidification and hardening: After the pouring is completed, wait for the concrete to harden naturally, and remove the external formwork after the concrete hardens to achieve the pouring and hardening of the concrete; S5. Inspection and acceptance: After the concrete has completely hardened, the properties of the poured concrete material shall be inspected using appropriate equipment to ensure that the physical properties of the hardened concrete meet the standards before acceptance.

2. The method for constructing a teaching building using a combination of concrete and steel structures according to claim 1, characterized in that: The sides of the two connecting rubber sheets (203) are connected to the outside of the pouring main pipe (1) by means of adhesive, and the telescopic adjustment rod (205) is distributed between the two mounting side plates (201). The two mounting side plates (201) correspond to each other and the outer sides of the mounting side plates (201) are flush with each other.

3. The method for constructing a teaching building using a combination of concrete and steel structures according to claim 1, characterized in that: One end of the telescopic return spring (211) is fixedly connected to the inner wall of the contraction transverse hole (208), while the other end of the telescopic return spring (211) is fixedly connected to the end of the elastic connecting rod (210). The bottom of the swing support rod (212) is movably connected to the inner bottom of the mounting side box (207) via a rotating shaft, and the isolation film (216) can be freely telescopically deformed.

4. The method for constructing a teaching building using a combination of concrete and steel structures according to claim 1, characterized in that: A top infusion tube (311) is fixedly connected to the middle of one side of the top of the top liquid guide ring (309); a regulating valve (312) is fixedly connected to the outer end of the top liquid guide tube (311); a connecting rear tube (313) is fixedly installed in the middle of one end of the regulating valve (312); a connecting sleeve (314) is threadedly sleeved to the outer side of the end of the connecting rear tube (313); a middle liquid guide tube (315) is threadedly sleeved to one end of the connecting sleeve (314); a rear liquid guide tube (316) is connected to the outer side of the end of the middle liquid guide tube (315) via the connecting sleeve (314); a bidirectional infusion pump (317) is fixedly connected to the end of the rear liquid guide tube (316); A liquid supply box (318) is fixedly mounted at the tail of the bidirectional infusion pump (317), a liquid adding port (319) is provided at a corner of the top surface of the liquid supply box (318), and a heating inner tube (320) is fixedly mounted at a corner of the inner bottom of the liquid supply box (318).

5. The method for constructing a teaching building using a combination of concrete and steel structures according to claim 4, characterized in that: The installation thin rope (302) and the connecting outer rope (305) can both be flexibly deformed, the connection between the protective cloth (306) and the connecting outer rope (305) remains smooth, and a gap is left between the side of the protective cloth (306) and the outer side of the flexible sheath (308).

6. The method for constructing a teaching building using a combination of concrete and steel structures according to claim 4, characterized in that: The inner cavity of the liquid-conducting top ring (309) is interconnected with the inner cavity of the expansion vertical bag (310); the outer side of the expansion vertical bag (310) is tightly fitted with the outer side of the pouring main pipe (1) and the inner side of the flexible sheath (308), respectively; the length of the liquid-conducting middle pipe (315) can be adjusted as required; and the bidirectional infusion pump (317) and the heating inner pipe (320) are both powered by an external power supply.

7. The method for constructing a teaching building using a combination of concrete and steel structures according to claim 4, characterized in that: An internal and external circulation cleaning mechanism (4) is arranged outside the flexible sheath (308), and the internal and external circulation cleaning mechanism (4) is used to drive the gas inside the casting mold cavity to circulate, remove a small amount of impurities remaining inside the mold cavity, and at the same time, provide auxiliary heat to the inside of the mold cavity during the circulation of the airflow, so as to balance the temperature inside the casting mold cavity; The internal and external circulation cleaning mechanism (4) comprises a connecting arc box (401); A connecting arc box (401) is provided on one side of the top of the mounting top ring (307); a vibration short tube (403) is fixedly connected to two ends of the bottom surface of the connecting arc box (401) at positions corresponding to the outside of the flexible sheath (308); the flexible air duct (402) and the vibration short tube (403) are alternately and equidistantly distributed along the outside of the flexible sheath (308); a mounting cross (404) is fixedly connected to the top and bottom of the inner side of the vibration short tube (403); a mounting shaft (405) is rotatably mounted between the two mounting crosses (404) at positions corresponding to the inside of the vibration short tube (403); a driving spiral plate (406) is fixedly connected to two ends of the outer side of the mounting shaft (405) at positions corresponding to the top and bottom of the inner side of the vibration short tube (403); an eccentric block (407) is sleeved on the middle part of the outer side of the mounting shaft (405); and a blowing bottom box (408) is fixedly connected to the end of the vibration short tube (403) at a position corresponding to the bottom of the mounting bottom ring (303); A long air guide tube (409) is fixedly connected to the middle of one side of the connecting arc box (401), a circulating fan (410) is fixedly connected to the end of the long air guide tube (409), the circulating fan (410) is powered by an external power supply, a circulating wind box (411) is fixedly installed at the tail of the circulating fan (410), a fine filter mesh (412) is fixedly installed at the middle of the inner side of the circulating wind box (411), a collecting duct (413) is fixedly connected to one end of the bottom of the circulating wind box (411) at a position corresponding to the bottom of the fine filter mesh (412), and a collecting ring box (414) is fixedly connected to the end of the collecting duct (413) at a position corresponding to the outer side of the pouring main pipe (1).

8. The method for constructing a teaching building by combining concrete and steel structure according to claim 7, characterized in that: The outer sides of the flexible air duct (402) and the vibrating short tube (403) are tightly fitted to the outer side of the flexible sheath (308), and the bottom surface of the blowing bottom box (408) is evenly provided with blowing holes.

9. The method for constructing a teaching building using a combination of concrete and steel structures according to claim 7, characterized in that: The outer side of the filtering fine mesh (412) is tightly slidably fitted with the inner wall of the circulating bellows (411), the inner ring of the collecting ring box (414) is tightly slidably fitted with the outer side of the pouring main pipe (1), and the bottom surface of the collecting ring box (414) is evenly provided with collecting fine holes.

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