A steel beam for a bucket foundation used in building construction and its construction method

Abstract

This invention discloses a steel beam for a bucket foundation used in building construction and its construction method, relating to the field of prefabricated building construction technology. It includes a bucket foundation mold comprising two fixed bottom mold components, with a movable bottom mold component installed between them. Both the fixed and movable bottom mold components are equipped with mounting plates. This invention utilizes a dual-protection system with anti-detachment components. The limiting block provides initial clamping to prevent falling and also prevents the nut from reversing and loosening, significantly improving the overall stability of the bottom mold assembly. This effectively reduces construction risks caused by loose bottom molds and provides a safe and stable support foundation for subsequent pouring operations. The temporary clamping function of the limiting block avoids manual support during nut installation, allowing for quick tightening with an electric wrench, greatly shortening installation time. During disassembly, simply squeezing with a wrench unlocks the anti-detachment and anti-rust functions, reducing the risk of corrosion and ensuring smooth and efficient disassembly.

Description

Technical Field

[0001] This invention relates to the field of prefabrication technology in building construction, and in particular to a steel beam for a bucket foundation used in building construction. Background Technology

[0002] In the construction of barrel foundation buildings, the bottom steel beam, as the core supporting component of the bottom formwork, must meet the requirements of firm splicing, corrosion resistance, and easy disassembly and assembly.

[0003] However, in practical applications, some problems remain unresolved. The following are some common issues related to the bottom steel beams of bucket foundations used in building construction: First, the reliability of splicing and fixing is insufficient. Traditional bolt and nut connections are prone to loosening due to construction vibrations, affecting the overall stability of the bottom formwork. Second, the corrosion resistance is poor. During construction, concrete slurry easily seeps into the bolt threads, causing corrosion that makes disassembly difficult and affecting the construction progress. Third, the disassembly and assembly operations are cumbersome. Nuts require manual support to prevent them from falling during installation, and corroded threads are prone to jamming during disassembly, which is time-consuming and labor-intensive. Summary of the Invention

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.

[0005] In view of the problems existing in the above and / or existing steel beams for bucket foundations and their construction methods for building construction, the present invention is proposed.

[0006] Therefore, the problem to be solved by this invention is how to solve the problems of loose splicing and fixing, thread corrosion and disassembly difficulties.

[0007] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a steel beam for a barrel foundation used in building construction, comprising: a barrel foundation mold, including two fixed bottom mold components, a movable bottom mold component installed between the two fixed bottom mold components, an mounting plate installed on both the fixed bottom mold components and the movable bottom mold component, an inner mold detachably fixed on both the fixed bottom mold components and the movable bottom mold component, an inner mold support provided on one side of the inner mold for fixing and supporting the inner mold; and a connecting mechanism installed on the mounting plate, including a bolt penetrating the mounting plate, a nut assembly installed on one end of the bolt, an anti-rust component and an anti-loosening component respectively installed on the nut assembly, and a limit groove circumferentially arrayed on the surface of the bolt, the limit groove cooperating with the anti-loosening component.

[0008] As a preferred embodiment of the steel beam bottom of the bucket foundation for building construction described in this invention, the fixed bottom formwork assembly includes a concrete foundation set on the ground, a second steel box beam is set on the top of the concrete foundation, and the mounting plate is fixed on the second steel box beam.

[0009] As a preferred embodiment of the steel beam for the bucket foundation used in building construction according to the present invention, the movable bottom formwork assembly includes a first movable bottom formwork, a second movable bottom formwork, and a third movable bottom formwork. The second movable bottom formwork is located between the first and second movable bottom formswork. Support members are provided at the bottom of the first, second, and third movable bottom formswork, and the support members are provided on the ground.

[0010] As a preferred embodiment of the steel beam for a bucket foundation used in building construction according to the present invention, wherein: the first movable bottom formwork, the second movable bottom formwork, and the third movable bottom formwork each include steel box beams of different shapes; the mounting plate is fixed on the steel box beams; the steel box beams of different shapes are combined into the first movable bottom formwork, the second movable bottom formwork, and the third movable bottom formwork by the mounting plate and the connecting mechanism; the fixed bottom formwork assembly is connected to the first movable bottom formwork, the second movable bottom formwork, and the third movable bottom formwork by the connecting mechanism; the support member includes a steel support pier set on the ground; a jack is set on the top of the steel support pier, and the jack cooperates with the steel box beam.

[0011] As a preferred embodiment of the steel beam for a bucket foundation used in building construction according to the present invention, the nut assembly includes a nut threaded to one end of a bolt, a first round sleeve fixed to one side of the nut, a retaining ring fixed to one side of the first round sleeve, a rotating ring rotating inside the retaining ring, a sealing gasket fixed on the rotating ring, and both the retaining ring and the sealing gasket cooperating with the mounting plate, a second round sleeve fixed to the other side of the nut, a telescopic sleeve fixed to one side of the second round sleeve, a wear-resistant pad fixed to one side of the telescopic sleeve, and both the wear-resistant pad and the telescopic sleeve cooperating with the bolt.

[0012] As a preferred embodiment of the steel beam for a bucket foundation used in building construction according to the present invention, the rust-proof component includes a groove formed on a nut, two liquid chambers formed inside the nut, a piston ring sliding inside the liquid chambers, a trigger block sliding inside the groove, a push block sliding inside the nut, one end of the push block being fixed to one side of the piston ring, a movable block sliding inside the push block, a guide hole formed on the trigger block, a guide post fixed at one end of the movable block located in the inner cavity of the groove, the guide post sliding within the guide hole, a spring fixed between one end of the movable block and the inner wall of the push block, a square groove formed on the inner wall of the push block, a square block fixed on the surface of one end of the movable block located in the inner cavity of the push block, the square block sliding within the square groove, and a spring sheet fixed between the surface of the trigger block and the inner wall of the groove.

[0013] As a preferred embodiment of the steel beam for the bucket foundation used in building construction according to the present invention, wherein: both the first and second circular sleeves are provided with annular holes, and the inner surfaces of both the first and second circular sleeves are provided with liquid outlet holes arranged in a circumferential array, and the liquid outlet holes are connected to the annular holes; the nut is provided with a connecting hole, and the connecting hole is connected to two liquid cavities; the nut, the first circular sleeve, and the second circular sleeve are provided with channels, and the channels are respectively connected to the annular holes and the liquid cavities; the second circular sleeve is provided with a liquid filling hole, and the liquid filling hole is connected to the liquid cavities; and a sealing plug for sealing the liquid filling hole is installed on one side of the second circular sleeve.

[0014] As a preferred embodiment of the steel beam for a bucket foundation used in building construction according to the present invention, the anti-detachment component includes a limiting block that slides on a circular sleeve, and the limiting block cooperates with a limiting groove. A movable plate 1 slides on the nut and the circular sleeve, and a movable plate 2 slides on the nut and the circular sleeve. A guide hole 2 is provided on the trigger block. A guide post 2 is fixed at one end of the movable plate 1 and the movable plate 2 that are close to each other, and the guide post 2 slides in the guide hole 2. A positioning groove is provided inside the circular sleeve. A positioning block is fixed on one side of the limiting block, and the positioning block slides in the positioning groove. A spring 2 is fixed between the surface of the positioning block and the inner wall of the positioning groove. A retaining ring slides on the inner surface of the circular sleeve 1 and the circular sleeve 2. A connecting block is fixed on the surface of the movable plate 1 and the movable plate 2, and one end of the connecting block is fixed to the surface of the retaining ring. The connecting block slides on the circular sleeve 1 and the circular sleeve 2.

[0015] As a preferred embodiment of the steel beam for the bottom of a barrel foundation for building construction described in this invention, the barrel foundation mold further includes a leveling screw and a trolley. The leveling screw is located at the bottom of the inner mold support, and the trolley is used to transport the formed barrel foundation. An inner mold tray is installed on the side of the inner mold away from the inner mold support, and a mounting seat for limiting the position of the inner mold support is installed on the ground.

[0016] As a preferred embodiment of the construction method for the bottom steel beam of the bucket foundation for building construction described in this invention, the bottom formwork preparation includes: cleaning the ground and setting out the positioning lines, installing the fixed bottom formwork components and placing the movable bottom formwork components, and adjusting the height of the movable bottom formwork with the jacks on the steel supports to make it flush with the fixed bottom formwork.

[0017] Splicing and fixing: The bolts are passed through the mounting plates of the adjacent steel box girders, the nut assembly is fitted into the bolts, and the limit block of the anti-loosening component temporarily clamps the bolts; the electric wrench is used to set the nut and squeeze the trigger block to unlock the anti-loosening function, while the anti-rust component is sprayed with anti-rust liquid; the nut is tightened, the sealing gasket is attached to the mounting plate for sealing, and the limit block is reset and inserted into the limit groove on the bolt to prevent loosening.

[0018] Pouring and curing: Install the inner formwork, pour concrete to form a bucket foundation, and remove the inner formwork after it has been formed.

[0019] Bottom formwork removal and handling: Press the trigger block with a wrench to unlock and prevent detachment, loosen the nut to disassemble the connecting mechanism, extend the trolley under the barrel foundation, and retract the jack; move it to the designated track and transfer it to the support platform.

[0020] The beneficial effects of this invention are as follows: 1. Through the dual protection of the anti-loosening component, the limiting block not only achieves initial clamping to prevent falling, but also prevents the nut from turning back and loosening, which greatly improves the overall stability of the bottom formwork splicing, effectively reduces the construction risks caused by the loosening of the bottom formwork, and provides a safe and stable support foundation for subsequent pouring operations. The temporary clamping function of the limiting block avoids manual support when installing the nut, and can be quickly tightened with an electric wrench, which greatly shortens the installation time. When disassembling, the anti-loosening and anti-rust functions can be unlocked by squeezing with a wrench, reducing the risk of rust and making disassembly smooth and efficient.

[0021] 2. The anti-rust component automatically sprays anti-rust liquid to form a durable protective layer on the thread surface, preventing rust caused by concrete slurry erosion and air oxidation. This ensures that the bottom steel beam can be repeatedly disassembled and reused, extending its service life. At the same time, the anti-rust liquid reduces thread jamming, lowers the difficulty of disassembly, avoids component scrapping due to rust, reduces consumable replacement costs, eliminates the need for manual application of anti-rust agent, saves construction time and labor costs, and improves construction economy. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a scene diagram based on the steel beams of a bucket foundation used in building construction.

[0024] Figure 2 This is a partial sectional plan view of the concrete foundation based on the bottom steel beam of the bucket foundation used in building construction.

[0025] Figure 3 This is a plan view of the steel supports and jacks for the bottom steel beams of the bucket foundation used in building construction.

[0026] Figure 4 This is a top view of the construction of the steel beams at the bottom of the bucket foundation used in building construction.

[0027] Figure 5 This is a partial three-view drawing of the construction process of the steel beam at the bottom of the bucket foundation used in building construction.

[0028] Figure 6 This is a top view of the first and second movable bottom forms based on the bottom steel beam of the bucket foundation used in building construction.

[0029] Figure 7 This is a partial view of the disassembly process of the bottom steel beam of the bucket foundation used in building construction.

[0030] Figure 8 This is a three-dimensional view of a partial steel box girder and mounting plate based on the bottom steel beam of a bucket foundation used in building construction.

[0031] Figure 9 This is a partial sectional perspective view of the mounting plate and bolts of the bottom steel beam of the bucket foundation used in building construction.

[0032] Figure 10 For the steel beams of the bucket foundation used in building construction Figure 9 Enlarged view of region A in the middle.

[0033] Figure 11 For the steel beams of the bucket foundation used in building construction Figure 10 Enlarged view of region B in the middle.

[0034] Figure 12 For the steel beams of the bucket foundation used in building construction Figure 10 Enlarged view of region C.

[0035] Figure 13 For the steel beams of the bucket foundation used in building construction Figure 11 Enlarged view of region D in the middle.

[0036] Figure 14 This is a three-dimensional view of the limiting groove and limiting block of the bottom steel beam of the bucket foundation used in building construction.

[0037] Figure 15 This is a partial sectional perspective view of the nuts and sleeves of the bottom steel beam of the bucket foundation used in building construction.

[0038] Figure 16 This is a three-dimensional view showing the trigger block, guide post one, and guide post two of the bottom steel beam of the bucket foundation used in building construction.

[0039] In the diagram: 1. Barrel-type foundation mold; 11. Fixed bottom mold assembly; 12. Movable bottom mold assembly; 13. Steel box girder one; 14. Mounting plate; 15. Inner mold; 16. Inner mold support; 17. Leveling screw; 18. Trolley; 19. Inner mold tray; 110. Mounting seat; 111. Concrete foundation; 112. Steel box girder two; 121. First movable bottom mold; 122. Second movable bottom mold; 123. Third movable bottom mold; 124. Support component; 1241. Steel support pier; 1242. Jack; 2. Connecting mechanism; 21. Bolt; 22. Nut assembly; 23. Rust prevention component; 24. Anti-detachment component; 25. Limiting groove; 221. Nut; 222. Round sleeve one; 223. Abutment ring; 224. Sealing gasket; 225. Rotary ring; 226. Telescopic sleeve; 227. Wear-resistant 228. Pad; 231. Round sleeve II; 232. Groove; 233. Liquid chamber; 234. Piston ring; 235. Trigger block; 236. Push block; 237. Movable block; 238. Guide hole I; 239. Guide post I; 2310. Spring I; 2311. Square groove; 2312. Square block; 2313. Ring hole; 2314. Liquid outlet hole; 2315. Connecting hole; 2316. Channel; 2317. 6. Filling hole; 2317. Sealing plug; 2318. Spring; 241. Limiting block; 242. Moving plate one; 243. Moving plate two; 244. Guide hole two; 245. Guide post two; 246. Positioning groove; 247. Positioning block; 248. Spring two; 249. Connecting block; 2410. Retaining ring; 2411. Trigger groove; 2412. Inclined surface one; 2413. Inclined surface two. Detailed Implementation

[0040] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0041] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0042] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0043] Example 1, referring to Figures 1 to 8This is the first embodiment of the present invention. This embodiment provides a bottom steel beam for a bucket foundation used in building construction and its construction method. The bottom steel beam for a bucket foundation used in building construction includes a bucket foundation mold 1 and a connecting mechanism 2.

[0044] Specifically, the barrel-type foundation mold 1 includes two fixed bottom mold components 11, a movable bottom mold component 12 is installed between the two fixed bottom mold components 11, an mounting plate 14 is installed on both the fixed bottom mold component 11 and the movable bottom mold component 12, and an inner mold 15 can be detachably fixed on both the fixed bottom mold component 11 and the movable bottom mold component 12. An inner mold bracket 16 is provided on one side of the inner mold 15 for fixing and supporting the inner mold 15.

[0045] The overall length of the bottom formwork is 40 meters, the width is 20 meters, and the height is 0.39 meters. It adopts the form of "fixed bottom formwork component 11 + movable bottom formwork component 12". The area where the modular vehicle travels is 16 meters wide and uses 3 movable bottom formworks. The movable bottom formwork is a structure of 0.39 meters high steel box girder + 0.6 meters high steel support pier 1241 + jack 1242. The area outside the area where the modular vehicle travels uses the fixed bottom formwork. The fixed bottom formwork includes a 0.9 meters wide and 1.21 meters high concrete foundation 111 and a 0.39 meters high steel box girder, with a total height of 1.6 meters. The inner formwork 15 is fixed to the fixed bottom formwork and the 3 movable bottom formworks by the inner formwork bracket 16 to form the barrel foundation pouring area, so as to facilitate the subsequent pouring of the barrel foundation. The mounting plate 14 has mounting holes to facilitate the subsequent connection mechanism 2 to connect the structures on the fixed bottom formwork component 11 and the movable bottom formwork component 12.

[0046] Specifically, the connecting mechanism 2 is installed on the mounting plate 14 and includes a bolt 21 that passes through the mounting plate 14. A nut assembly 22 is installed at one end of the bolt 21. A rust-proof component 23 and an anti-loosening component 24 are respectively installed on the nut assembly 22. A limiting groove 25 is formed in a circumferential array on the surface of the bolt 21, and the limiting groove 25 cooperates with the anti-loosening component 24. Through the setting of the bolt 21 and the nut assembly 22, the mounting plates 14 on the steel box girder can be connected to each other, thereby combining steel box girders of different shapes into different movable bottom molds, as well as the connection between the movable bottom mold and the fixed bottom mold.

[0047] By setting the anti-rust component 23, maintenance can be performed when installing the nut component 22 on the bolt 21 and removing it from the bolt 21. A protective layer is formed on the threaded end of the bolt 21 and the threaded area inside the nut component 22, preventing rusting after long-term exposure after installation and corrosion of the threaded area by the liquid flowing during concrete pouring, which would hinder installation and removal. Furthermore, even if a small amount of concrete solidifies on the bolt 21, the protective layer will not exert a strong force on the bolt 21, making it inconvenient to remove.

[0048] With the anti-loosening component 24 in place, after the bolt 21 passes through the mounting hole on the mounting plate 14, the nut component 22 can be easily fitted onto one end of the bolt 21 without further rotation, thus achieving initial positioning and preventing it from falling off. Then, the operator can place an electric wrench on the nut component 22 and rotate it to fix it onto the bolt 21, thus completing the fixation of the mounting plate 14 between the two steel box beams. After installation, the wrench can be removed. Under the action of the limiting groove 25, the anti-loosening component 24 will prevent the nut component 22 from reversing, improving the stability of the connection and preventing the bolt 21 and the nut component 22 from becoming loose.

[0049] Example 2, refer to Figures 2-7 This is the second embodiment of the present invention, which is based on the previous embodiment.

[0050] Specifically, the fixed bottom formwork assembly 11 includes a concrete foundation 111 set on the ground, a steel box girder 112 set on the top of the concrete foundation 111, an installation plate 14 fixed on the steel box girder 112, and a transverse trolley travel path set between the concrete foundations 111 to facilitate the subsequent trolley 18 to transversely move the cast-in-place bucket foundation to the longitudinal line support platform. The steel box girder 112 serves as part of the bottom formwork.

[0051] Specifically, the movable bottom mold assembly 12 includes a first movable bottom mold 121, a second movable bottom mold 122, and a third movable bottom mold 123. The second movable bottom mold 122 is located between the first movable bottom mold 121 and the second movable bottom mold 122. The bottom of the first movable bottom mold 121, the second movable bottom mold 122, and the third movable bottom mold 123 are all provided with support members 124, and the support members 124 are set on the ground.

[0052] The movable bottom mold assembly 12 is detachable. It is composed of the first movable bottom mold 121, the second movable bottom mold 122 and the third movable bottom mold 123 to form a complete movable bottom mold. It can be easily removed after the pouring is completed, and can be moved in and out between the two fixed bottom mold assemblies 11. Several support members 124 are provided. The height of the movable bottom mold can be adjusted by the support members 124 so that it corresponds to the height of the fixed bottom mold assembly 11, so that the subsequent connecting mechanism 2 can connect them.

[0053] Specifically, the first movable bottom formwork 121, the second movable bottom formwork 122, and the third movable bottom formwork 123 all include steel box girders 13 of different shapes. The mounting plate 14 is fixed on the steel box girders 13. The steel box girders 13 of different shapes are combined into the first movable bottom formwork 121, the second movable bottom formwork 122, and the third movable bottom formwork 123 through the mounting plate 14 and the connecting mechanism 2. The fixed bottom formwork assembly 11 is connected to the first movable bottom formwork 121, the second movable bottom formwork 122, and the third movable bottom formwork 123 respectively through the connecting mechanism 2. The support member 124 includes a steel support pier 1241 set on the ground. A jack 1242 is set on the top of the steel support pier 1241, and the jack 1242 cooperates with the steel box girders 13. The steel support pier 1241 supports the jack 1242, and the movable bottom formwork is supported by the jack 1242. At the same time, the height can be adjusted.

[0054] Example 3, referring to Figures 8 to 16 This is the third embodiment of the present invention, which is based on the first two embodiments.

[0055] Specifically, the nut assembly 22 includes a nut 221 threadedly connected to one end of the bolt 21. A circular sleeve 222 is fixed to one side of the nut 221, and a retaining ring 223 is fixed to one side of the circular sleeve 222. With the retaining ring 223, when the nut 221 rotates and moves on the bolt 21, it comes into close contact with the surface of the mounting plate 14, thereby fixing the two mounting plates 14 together. A rotating ring 225 rotates inside the retaining ring 223, and a sealing gasket 224 is fixed on the rotating ring 225. Both the retaining ring 223 and the sealing gasket 224 cooperate with the mounting plate 14. A circular sleeve 228 is fixed to the other side of the nut 221. A telescopic sleeve 226 is fixed to one side of the circular sleeve 228, and a wear-resistant pad 227 is fixed to one side of the telescopic sleeve 226. Both the wear-resistant pad 227 and the telescopic sleeve 226 cooperate with the bolt 21.

[0056] By setting the rotating ring 225, when the sealing gasket 224 and the abutment ring 223 move and rotate together with the nut 221 on the bolt 21, after the sealing gasket 224 contacts the surface of the mounting plate 14, the rotation of the sealing gasket 224 and the rotating ring 225 with the nut 221 is reduced, thus reducing the wear of the sealing gasket 224. Furthermore, the sealing gasket 224 is compressed as the nut 221 drives the abutment ring 223 to move. When the abutment ring 223 is in close contact with the mounting plate 14, the seal is completed, reducing the seepage of liquid flowing down from the concrete into the gap between the bolt 21 and the nut 221, which could lead to corrosion.

[0057] The telescopic sleeve 226 is made of elastic, wear-resistant, and corrosion-resistant rubber material, which is existing technology and can be clearly understood by those skilled in the art, so it will not be described in detail here. During the process of installing the nut 221 on the bolt 21, the nut 221 moves continuously on the bolt 21, causing the bolt 21 to continuously press against the telescopic sleeve 226, thereby extending the telescopic sleeve 226 to cover the exposed end of the bolt 21, protecting the exposed thread end of the bolt 21. The wear-resistant pad 227 protects the contact area between the bolt 21 and the telescopic sleeve 226, reducing wear when the nut 221 rotates on the bolt 21 and the bolt 21 rotates relative to the telescopic sleeve 226.

[0058] Specifically, the anti-rust component 23 includes a groove 231 formed on the nut 221, two liquid chambers 232 formed in the nut 221, a piston ring 233 sliding in the liquid chambers 232, a trigger block 234 sliding in the groove 231, a push block 235 sliding in the nut 221, and one end of the push block 235 fixed to one side of the piston ring 233. The liquid chambers 232 are filled with anti-rust liquid. The piston ring 233 and the inner wall of the liquid chambers 232 are sealed. The push block 235 and the nut 221 are also sealed. A movable block 236 slides in the push block 235. A guide hole 237 is formed on the trigger block 234. A guide post 238 is fixed at one end of the movable block 236 located in the inner cavity of the groove 231, and the guide post 238 slides in the guide hole 237.

[0059] The guide hole 237 is divided into three parts. The first and second parts are guide posts 238. When they move within the guide hole 237, the movable block 236 will not move. The second part is guide posts 245. When they move within the guide hole 237, the movable block 236 can move. The trigger block 234 is provided with an inclined surface at one end outside the nut 221. With this setting, when the nut assembly 22 needs to be installed on or removed from the bolt 21, the electric wrench can squeeze the trigger block 234 into the groove 231 when it is on the nut 221. This causes the guide post 238 to move from the first part of the guide hole 237 through the second part into the third part, thereby moving the movable block 236.

[0060] A spring 239 is fixed between one end of the movable block 236 and the inner wall of the push block 235. A square groove 2310 is provided on the inner wall of the push block 235. A square block 2311 is fixed on one end surface of the movable block 236 located in the inner cavity of the push block 235, and the square block 2311 slides in the square groove 2310. A spring piece 2318 is fixed between the surface of the trigger block 234 and the inner wall of the groove 231.

[0061] With the spring 239 in place, when the movable block 236 moves within the push block 235, it can compress the spring 239. The elastic force of the spring 239 applies pressure to the push block 235, which in turn applies pressure to the piston ring 233, thereby pressurizing the rust inhibitor in the liquid chamber 232. With the square groove 2310 and the square block 2311 in place, during the reset process of the trigger block 234, when the guide post 238 resets the movable block 236 within the guide hole 237, and the square block 2311 can no longer move within the square groove 2310, the movable block 236 drives the square block 2311 to pull the push block 235 to reset, thereby resetting the piston ring 233 and stopping the application of rust inhibitor.

[0062] By setting the spring piece 2318, it deforms when the trigger block 234 moves into the groove 231, providing force for the subsequent reset of the trigger block 234. At the same time, when the nut 221 is inside the wrench before installation or after removal, the spring force of the spring piece 2318 on the trigger block 234 prevents the nut 221 from falling out of the wrench, allowing it to be removed manually and avoiding the need for reloading during operation.

[0063] Specifically, both the first sleeve 222 and the second sleeve 228 have annular holes 2312. The inner surfaces of the first sleeve 222 and the second sleeve 228 have circumferential arrays of liquid outlet holes 2313, which are connected to the annular holes 2312. The nut 221 has a connecting hole 2314, which is connected to the two liquid chambers 232. The nut 221, the first sleeve 222 and the second sleeve 228 have channels 2315, which are connected to the annular holes 2312 and the liquid chambers 232 respectively. The second sleeve 228 has a liquid inlet hole 2316, which is connected to the liquid chamber 232. A sealing plug 2317 for sealing the liquid inlet hole 2316 is installed on one side of the second sleeve 228.

[0064] There are several outlet holes 2313, and the outlet direction is inclined. With this setting, when the piston ring 233 pressurizes the rust inhibitor in the liquid chamber 232, the rust inhibitor in the liquid chamber 232 can enter the ring hole 2312 through the channel 2315, and then be discharged from the outlet hole 2313. With the action of the nut 221 being disassembled and rotated, it can be sprayed on the thread end of the bolt 21 and the internal thread of the nut 221, which plays a protective role and prevents corrosion and rust from causing the nut 221 to be unable to be removed from the bolt 21 smoothly, affecting the construction of the bottom mold. The connecting hole 2314 connects the two liquid chambers 232. When it is necessary to add rust inhibitor through the liquid filling hole 2316 later, it can be smoothly added to the two liquid chambers 232. The sealing plug 2317 is installed on the round sleeve 228 by threaded connection to prevent liquid leakage.

[0065] Specifically, the anti-detachment component 24 includes a limiting block 241 that slides on the first round sleeve 222, and the limiting block 241 cooperates with the limiting groove 25. The inner wall of the limiting groove 25 is provided with an inclined surface. With this setting, even after one end of the limiting block 241 is inserted into it, it can still be operated when the nut 221 needs to be rotated for tightening. However, it cannot be operated when rotating in the opposite direction unless the trigger block 234 moves into the groove 231, causing the limiting block 241 to disengage from the limiting groove 25. The first moving plate 242 slides on the nut 221 and the first round sleeve 222, and the second moving plate 243 slides on the nut 221 and the second round sleeve 228. The trigger block 234 is provided with a second guide hole 244. The ends of the first moving plate 242 and the second moving plate 243 that are close to each other are fixed with a second guide post 245, and the second guide post 245 slides in the second guide hole 244.

[0066] The guide hole 244 is divided into three parts. The first and third parts prevent the moving plate 242 and the moving plate 243 from moving when the guide post 245 moves within it. The second part allows the moving plate 242 and the moving plate 243 to move when the guide post 245 moves within it. One end of the moving plate 242 is provided with a slope. With this setting, when the trigger block 234 moves into the groove 231, the guide post 245 moves from the first part of the guide hole 244 through the second part and into the third part. The three parts allow the first movable plate 242 and the second movable plate 243 to move, so that the first movable plate 242 can press the limiting block 241 to move on the first round sleeve 222. Then, the nut 221 is fixed to the bolt 21 by an electric wrench. After the abutment ring 223 is in close contact with the mounting plate 14, the electric wrench is removed from the nut 221, the trigger block 234 is reset, and the limiting block 241 is pulled back by the second spring 248, so that one end of the limiting block 241 is inserted into the limiting groove 25, which plays a role in preventing reverse rotation.

[0067] A positioning groove 246 is provided inside the circular sleeve 222. A positioning block 247 is fixed on one side of the limiting block 241, and the positioning block 247 slides in the positioning groove 246. The positioning block 247 and the positioning groove 246 guide and limit the limiting block 241 to prevent the limiting block 241 from detaching from the circular sleeve 222. A spring 248 is fixed between the surface of the positioning block 247 and the inner wall of the positioning groove 246. With the setting of the spring 248, when the nut 221 is sleeved on one end of the bolt 21, the limiting block 241 is stuck at the end of the bolt 21, providing a force to prevent the nut assembly 22 from easily falling off the bolt 21. After being sleeved by an electric wrench, it can be directly driven. When the limiting block 241 is squeezed and moved by the moving plate 242, it deforms, providing a force for the limiting block 241 to reset.

[0068] Both the inner surfaces of the first sleeve 222 and the second sleeve 228 have sliding retaining rings 2410. Both the surfaces of the first moving plate 242 and the second moving plate 243 have connecting blocks 249 fixed on them, with one end of the connecting block 249 fixed to the surface of the retaining ring 2410. The connecting block 249 slides on the first sleeve 222 and the second sleeve 228. The retaining ring 2410 seals the gap between the first sleeve 222 and the second sleeve 228. By setting the retaining ring 2410, the outlet hole 2313 can be blocked and sealed when the rust inhibitor is not needed to prevent leakage. When the trigger block 234 is squeezed to open, the first moving plate 242 and the second moving plate 243 can drive the connecting block 249 to move, thereby driving the retaining ring 2410 to move and expose the outlet hole 2313 for rust prevention.

[0069] Example 4, refer to Figures 1 to 16 This is the fourth embodiment of the present invention, which is based on the first three embodiments.

[0070] Specifically, the barrel-type foundation mold 1 also includes a leveling screw 17 and a trolley 18. The leveling screw 17 is located at the bottom of the inner mold support 16, and the trolley 18 is used to transport the formed barrel-type foundation. An inner mold tray 19 is installed on the side of the inner mold 15 away from the inner mold support 16, and an installation seat 110 for limiting the inner mold support 16 is installed on the ground.

[0071] The inner mold 15 is provided with grout-stopping steel for installing grout-stopping pads between the fixed bottom mold assembly 11 and the movable bottom mold assembly 12. After the dovetail grout-stopping pads are installed, concrete leakage is prevented. The leveling screw 17 can perform leveling operation on the inner mold support 16. The trolley 18 can transport the formed barrel foundation. The inner mold tray 19 can reserve an empty shell. This is existing technology and can be clearly understood by those skilled in the art, so it will not be described in detail here. The mounting seat 110 can stably install and limit the inner mold support 16.

[0072] Specifically, this includes the transverse trolley track required for lateral movement and the longitudinal trolley track required for longitudinal movement. After the barrel foundation is poured and formed, the inner mold 15 and inner mold support 16 are removed, and the entire row of trolleys 18 are moved to the bottom of the poured barrel foundation. The formed barrel foundation is placed on the entire row of trolleys 18 by the retraction jacks 1242. Then, the barrel foundation is transported to the longitudinal line support platform by the transverse trolley track, and then transported to the drop barge support pier by the longitudinal trolley track. When the bottom formwork is erected, the ground is first cleaned, the position of the barrel foundation is measured by laying out lines, and the steel bottom formwork is installed. The external dimensions of the barrel foundation are mainly controlled by the bottom formwork. The processing and installation of the bottom formwork require precision. The height difference of the bottom formwork is less than 5mm. The installed steel bottom formwork requires good integrity.

[0073] Specifically, a trigger groove 2411 is provided on one side of the limiting block 241, and the trigger groove 2411 cooperates with the moving plate 242. One end of the limiting block 241 is provided with a first inclined surface 2412 and a second inclined surface 2413. An inclined surface is provided in the trigger groove 2411. When the moving plate 242 moves and contacts it, it can squeeze the limiting block 241 to move. Through the setting of the second inclined surface 2413, after one end of the limiting block 241 is inserted into the limiting groove 25, when it is necessary to continue to tighten, the second inclined surface 2413 contacts the inclined surface in the limiting groove 25, which can squeeze the limiting block 241 to move without affecting the continued tightening operation of the nut 221.

[0074] By setting the inclined surface 2412, during the operation of the limiting block 241 being stuck at one end of the bolt 21, the inclined surface 2412 is squeezed by one end of the bolt 21, which allows the limiting block 241 to move on the circular sleeve 222, causing the square block 2311 to move and stretch the spring 248. After the movement is completed, under the elastic force of the spring 248, the nut assembly 22 is initially stuck at one end of the bolt 21, which is convenient for subsequent tightening.

[0075] During use, the bottom formwork is spliced ​​and aligned in height: the fixed bottom formwork assembly 11 is composed of a concrete foundation 111 and a steel box girder, and the movable bottom formwork assembly 12 is spliced ​​from multiple steel box girders. The height of the movable bottom formwork is adjusted by the jacks 1242 on the steel support piers 1241 to make it precisely aligned with the fixed bottom formwork, ensuring that the splicing surface is flat.

[0076] Bolt 21 and nut 221 are spliced ​​and fixed: Bolt 21 passes through the mounting plate 14 of the adjacent steel box girder, nut assembly 22 is fitted into bolt 21, and the limiting block 241 of the anti-loosening assembly 24 is temporarily stuck on bolt 21 to prevent nut 221 from falling off; start the electric wrench to tighten nut 221, the wrench squeezes the trigger block 234, drives the moving plate 242 to move the limiting block 241, the retaining ring 2410 moves to release the blockage of the liquid outlet 2313, at the same time the piston ring 233 of the anti-rust assembly 23 is compressed, and the anti-rust liquid in the liquid chamber 232 is sprayed onto the thread surface through the channel 2315 and the liquid outlet 2313; nut 221 is tightened further, the sealing gasket 224 is tightly fitted with the mounting plate 14, and the fixing is completed.

[0077] Anti-loosening and anti-rust protection: After tightening, the wrench disengages from the trigger block 234, and the spring 2318 drives the trigger block 234 to reset. The limit block 241 is inserted into the limit groove 25 under the action of the second spring 248 to prevent the nut 221 from reversing and loosening. The anti-rust liquid forms a protective layer on the thread surface, isolating the slurry from the air and preventing corrosion.

[0078] Disassembly and transportation: After the pouring is completed, the wrench presses the trigger block 234 again, the limit block 241 disengages from the limit groove 25, and the nut 221 is loosened to disassemble; the jack 1242 is retracted to move the inner mold 15 and the inner mold support 16 out, and the formed barrel foundation is transported to the designated position via the track by the trolley 18.

[0079] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A steel beam for the bottom of a bucket foundation used in building construction, characterized in that: include, A barrel-type foundation mold (1) includes two fixed bottom mold assemblies (11), a movable bottom mold assembly (12) is installed between the two fixed bottom mold assemblies (11), and mounting plates (14) are installed on both the fixed bottom mold assembly (11) and the movable bottom mold assembly (12). An inner mold (15) can be detachably fixed on both the fixed bottom mold assembly (11) and the movable bottom mold assembly (12). An inner mold support (16) is provided on one side of the inner mold (15) for fixed support; and... The connecting mechanism (2) is installed on the mounting plate (14) and includes a bolt (21) that passes through the mounting plate (14). A nut assembly (22) is installed on one end of the bolt (21). A rust-proof component (23) and an anti-loosening component (24) are respectively installed on the nut assembly (22). A limiting groove (25) is formed in a circumferential array on the surface of the bolt (21), and the limiting groove (25) cooperates with the anti-loosening component (24).

2. The steel beam for the bottom of a bucket foundation used in building construction as described in claim 1, characterized in that: The fixed bottom formwork assembly (11) includes a concrete foundation (111) set on the ground, a steel box girder (112) is set on the top of the concrete foundation (111), and the mounting plate (14) is fixed on the steel box girder (112).

3. The steel beam for the bottom of a bucket foundation used in building construction as described in claim 2, characterized in that: The movable bottom mold assembly (12) includes a first movable bottom mold (121), a second movable bottom mold (122) and a third movable bottom mold (123). The second movable bottom mold (122) is located between the first movable bottom mold (121) and the second movable bottom mold (122). The bottom of the first movable bottom mold (121), the second movable bottom mold (122) and the third movable bottom mold (123) are all provided with support members (124), and the support members (124) are set on the ground.

4. The steel beam for the bottom of a bucket foundation used in building construction as described in claim 3, characterized in that: The first movable bottom formwork (121), the second movable bottom formwork (122), and the third movable bottom formwork (123) each include steel box beams of different shapes (13). The mounting plate (14) is fixed on the steel box beams of different shapes (13). The steel box beams of different shapes (13) are combined into the first movable bottom formwork (121), the second movable bottom formwork (122), and the third movable bottom formwork (123) through the mounting plate (14) and the connecting mechanism (2). The fixed bottom formwork assembly (11) is connected to the first movable bottom formwork (121), the second movable bottom formwork (122), and the third movable bottom formwork (123) through the connecting mechanism (2). The support member (124) includes a steel support pier (1241) set on the ground. A jack (1242) is set on the top of the steel support pier (1241), and the jack (1242) cooperates with the steel box beam (13).

5. The steel beam for the bottom of a bucket foundation used in building construction as described in claim 2, characterized in that: The nut assembly (22) includes a nut (221) threaded to one end of a bolt (21). A first round sleeve (222) is fixed to one side of the nut (221). A retaining ring (223) is fixed to one side of the first round sleeve (222). A rotating ring (225) rotates inside the retaining ring (223). A sealing gasket (224) is fixed on the rotating ring (225). Both the retaining ring (223) and the sealing gasket (224) cooperate with the mounting plate (14). A second round sleeve (228) is fixed to the other side of the nut (221). A telescopic sleeve (226) is fixed to one side of the second round sleeve (228). A wear-resistant pad (227) is fixed to one side of the telescopic sleeve (226). Both the wear-resistant pad (227) and the telescopic sleeve (226) cooperate with the bolt (21).

6. The steel beam for the bottom of a bucket foundation used in building construction as described in claim 5, characterized in that: The rust-proof component (23) includes a groove (231) on a nut (221), two liquid chambers (232) are formed in the nut (221), a piston ring (233) slides in the liquid chambers (232), a trigger block (234) slides in the groove (231), a push block (235) slides in the nut (221), and one end of the push block (235) is fixed to one side of the piston ring (233). A movable block (236) slides in the push block (235), and a guide hole (237) is formed on the trigger block (234). The movable block (236) is located at... A guide post (238) is fixed at one end of the inner cavity of the groove (231), and the guide post (238) slides in the guide hole (237). A spring (239) is fixed between one end of the movable block (236) and the inner wall of the push block (235). A square groove (2310) is opened in the inner wall of the push block (235). A square block (2311) is fixed on the surface of one end of the movable block (236) located in the inner cavity of the push block (235), and the square block (2311) slides in the square groove (2310). A spring piece (2318) is fixed between the surface of the trigger block (234) and the inner wall of the groove (231).

7. The steel beam for the bottom of a bucket foundation used in building construction as described in claim 6, characterized in that: Both the first circular sleeve (222) and the second circular sleeve (228) have annular holes (2312) inside. The inner surfaces of both the first circular sleeve (222) and the second circular sleeve (228) have circumferentially arranged liquid outlet holes (2313) that communicate with the annular holes (2312). The nut (221) has a connecting hole (2314) that communicates with the two liquid chambers (232). The first round sleeve (222) and the second round sleeve (228) are provided with channels (2315), and the channels (2315) are connected to the annular hole (2312) and the liquid cavity (232) respectively. The second round sleeve (228) is provided with a liquid filling hole (2316), and the liquid filling hole (2316) is connected to the liquid cavity (232). A sealing plug (2317) for sealing the liquid filling hole (2316) is installed on one side of the second round sleeve (228).

8. The steel beam for the bottom of a bucket foundation used in building construction as described in claim 7, characterized in that: The anti-detachment component (24) includes a limiting block (241) that slides on the first round sleeve (222), and the limiting block (241) cooperates with the limiting groove (25). A moving plate (242) slides on the nut (221) and the first round sleeve (222), and a moving plate (243) slides on the nut (221) and the second round sleeve (228). A guide hole (244) is provided on the trigger block (234). A guide post (245) is fixed at one end of the moving plate (242) and the moving plate (243) that are close to each other, and the guide post (245) slides in the guide hole (244). A guide hole (245) is provided in the first round sleeve (222). The positioning groove (246) has a positioning block (247) fixed on one side of the limiting block (241), and the positioning block (247) slides in the positioning groove (246). A spring (248) is fixed between the surface of the positioning block (247) and the inner wall of the positioning groove (246). A retaining ring (2410) slides on the inner surface of the first round sleeve (222) and the second round sleeve (228). A connecting block (249) is fixed on the surface of the first moving plate (242) and the second moving plate (243), and one end of the connecting block (249) is fixed on the surface of the retaining ring (2410). The connecting block (249) slides on the first round sleeve (222) and the second round sleeve (228).

9. The steel beam for the bottom of a bucket foundation used in building construction as described in claim 1, characterized in that: The barrel-type foundation mold (1) also includes a leveling screw (17) and a trolley (18). The leveling screw (17) is located at the bottom of the inner mold support (16). The trolley (18) is used to transport the formed barrel-type foundation. An inner mold tray (19) is installed on the side of the inner mold (15) away from the inner mold support (16). An installation seat (110) for limiting the inner mold support (16) is installed on the ground.

10. A construction method based on the bottom steel beam of a bucket foundation for building construction, characterized in that: Including the steel beam for the bottom of the bucket foundation for building construction as described in any one of claims 1-9, the method further includes the following construction method: Bottom formwork preparation: Clean the ground and lay out the positioning lines, install the fixed bottom formwork component (11), place the movable bottom formwork component (12), and adjust the height of the movable bottom formwork by using the jacks (1242) on the steel support (1241) to make it flush with the fixed bottom formwork; Splicing and fixing: The bolt (21) is inserted through the mounting plate (14) of the adjacent steel box girder, the nut assembly (22) is fitted into the bolt (21), and the limiting block (241) of the anti-loosening assembly (24) temporarily clamps the bolt (21); the electric wrench is used to put the nut (221) and squeeze the trigger block (234) to unlock the anti-loosening function, and at the same time the anti-rust assembly (23) sprays anti-rust liquid; the nut (221) is tightened, the sealing gasket (224) is attached to the mounting plate (14) for sealing, and the limiting block (241) is reset and inserted into the limiting groove (25) on the bolt (21) to prevent loosening; Pouring and curing: Install the inner formwork (15), pour concrete to form a bucket foundation, and remove the inner formwork (15) after it is formed. Bottom mold removal and handling: Press the trigger block (234) with a wrench to unlock the anti-dislodgement mechanism, loosen the nut (221) to disassemble the connecting mechanism (2), extend the trolley (18) under the barrel foundation, and retract the jack (1242); transport it to the designated track and transfer it to the support platform.

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