A steel wall box structure for connecting underground spaces

Abstract

The present invention provides a steel wall box structure for connecting underground spaces. The structure comprises two steel plates, a rectangular steel wall box with a built-in locking system, and a pull rod mechanism. The rectangular steel wall box with a built-in locking system includes a steel box wall and multiple locking systems. Each steel plate has an opening in the middle for accommodating the steel box wall. The front or back panel of the steel box wall has a plurality of vertically arranged slots, the number of slots being the same as the number of the locking systems. The top and bottom panels of the steel box wall each have through-holes for extending the upper and lower ends of the locking systems. The locking systems can pass through corresponding slots and be fixedly connected to the pull rod mechanism via hinged bolts. By pulling the pull rod mechanism, the upper and lower ends of all the locking systems can be extended from the corresponding through-holes of the steel box wall or retracted into the steel box wall. The present invention can avoid the need to chisel away the wall later.

Description

Technical Field

[0001] The present invention belongs to the technical field of urban underground space connection, and the present invention relates to a steel wall box structure used for underground space connection. Background Art

[0002] With the gradual rise of underground space structures, in the construction of urban underground space, due to the limitations of construction conditions and considering long-term planning and development, it is necessary to reserve multiple interconnection interfaces in the underground space theme structure to facilitate the connection of the underground space in the later stage.

[0003] Traditionally, underground spaces, such as underground garages and shopping malls, have served as appendages to above-ground structures, characterized by being separate and independent units. However, as urban underground spaces increasingly become integrated and connected, traditional underground spaces lack pre-existing openings in their walls.

[0004] The method for later chiseling of traditional walls without reserved openings is roughly as follows: first chisel away the concrete at the lintel position to strengthen the lintel and set up a waterproof structure. After the lintel reaches the design strength, chisel away the concrete at the hidden columns on both sides to strengthen the hidden columns and set up a waterproof structure. After the hidden columns reach the design strength, chisel away the remaining part of the wall to form a connecting doorway.

[0005] The disadvantage of this approach is that by breaking down the structural reinforced concrete and re-setting reinforcement measures and waterproofing structures, the thickness of the existing structural reinforced concrete walls increases the difficulty of cutting and breaking, and at the same time seriously damages the reinforced concrete wall structure, affecting the quality and service life of the reinforced concrete underground passage.

[0006] Therefore, how to research an economical and reasonable reserved interface that does not require destroying the original wall and force system while reducing the difficulty of construction is a technical problem that technical personnel in the vicinity of this project urgently need to solve. Summary of the Invention

[0007] The present invention aims to provide a steel wall box structure for connecting underground spaces, which does not require destroying the original wall and force system and can reduce the difficulty of construction.

[0008] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0009] A steel wall box structure for connecting underground spaces, comprising: two steel plates, a rectangular steel wall box with a self-locking system, and a pull rod mechanism. The rectangular steel wall box with a self-locking system comprises a steel box wall and multiple locking systems. The multiple locking systems are arranged in the steel box wall. The steel box wall is a rectangular parallelepiped consisting of a front panel, a back panel, a top panel, a bottom panel, and two side panels. The two steel plates are respectively fixed to the four sides of the front panel and the four sides of the back panel of the steel box wall. Each steel plate is rectangular, and the middle part of each steel plate has a portion for accommodating the steel box. The opening of the wall, the front panel and the back panel of the steel box wall are flush with the two steel plates respectively, and a number of vertically arranged slots are provided on the front panel or the back panel of the steel box wall, and the number of the slots is the same as the number of the locking systems. The top plate and the bottom plate of the steel box wall are respectively provided with through holes for the upper and lower ends of the locking systems to extend out, and the locking systems can be fixedly connected with the pull rod mechanism through the corresponding slots through the hinged bolts, and by pulling the pull rod mechanism, the upper and lower ends of all locking systems can be extended from the corresponding through holes of the steel box wall out of the steel box wall or retracted into the steel box wall.

[0010] Preferably, in the above-mentioned steel wall box structure for connecting underground spaces, the locking system includes two springs, two first steel pipe locks, a solid steel pipe, two hollow steel pipe hoists, two hoist handles, two first force-transmitting steel pipes and a triangular steel plate. The first steel pipe lock includes a hollow pipe, a solid pipe and two steel pipe purlin supports. One end of the hollow pipe is coaxially connected to one end of a solid pipe. The two steel pipe purlin supports and a hollow steel pipe hoist are respectively sleeved on the other end of the hollow pipe, and the two steel pipe purlin supports are respectively located on the upper and lower sides of the hollow steel pipe hoist. The two steel pipe purlin supports are fixedly connected to the hollow pipe. The hoist handle One end of the handle is fixedly connected to the corresponding hollow steel pipe hoist, and the triangular steel plate is a triangular plate. The three corners of the triangular steel plate are respectively hinged to the other end of the two first force transmission steel pipes and the pull rod mechanism through hinge bolts. The two ends of the solid steel pipe are respectively extended into the hollow tubes of the two first steel pipe locks. The two springs are respectively arranged on both sides of the solid steel pipe and are located in the hollow tubes of the corresponding first steel pipe locks. The two ends of the spring are respectively fixedly connected to the solid tube of the corresponding first steel pipe lock and the corresponding end of the solid steel pipe. The spring is a compression spring, and the spring pushes the solid tube away from the solid steel pipe in a natural state.

[0011] Preferably, in the above-mentioned steel wall box structure for connecting underground spaces, the pull rod mechanism includes a steel pipe crossbeam and several second force-transmitting steel pipes, the second force-transmitting steel pipes correspond one-to-one to the locking system, one end of the second force-transmitting steel pipe is provided with a threaded section, and the steel pipe crossbeam is provided with several internal threaded holes along its own axial direction that match the threaded sections of the second force-transmitting steel pipes, and the three corners of the triangular steel plate are respectively hinged to the other end of the two first force-transmitting steel pipes and the other end of the second force-transmitting steel pipe through hinged bolts.

[0012] Preferably, in the above-mentioned steel wall box structure for connecting underground spaces, by pulling the steel pipe crossbeam horizontally in a direction away from the steel box wall, the angle of the two first force-transmitting steel pipes becomes smaller, and the two first force-transmitting steel pipes drive the corresponding first steel pipe locks to approach each other along the axial direction of the solid steel pipe, so that the corresponding solid pipes are retracted into the steel box wall, that is, the upper and lower ends of all locking systems are retracted into the steel box wall; by pushing the steel pipe crossbeam horizontally in a direction close to the steel box wall, the angle of the two first force-transmitting steel pipes becomes larger, and the two first force-transmitting steel pipes drive the corresponding first steel pipe locks to move away from each other along the axial direction of the solid steel pipe, so that the corresponding solid pipes extend out of the steel box wall from the corresponding through holes of the steel box wall, that is, the upper and lower ends of the locking systems extend out of the steel box wall from the corresponding through holes of the steel box wall.

[0013] Preferably, in the above-mentioned steel wall box structure for connecting underground spaces, the locking system on both sides further includes a second hoist handle and a second steel pipe lock, one end of the second hoist handle being fixedly connected to the hollow steel pipe hoist, and one end of the second steel pipe lock being hinged to the other end of the second hoist handle. Holes are respectively provided on the left and right side panels of the steel box wall for the other ends of the corresponding second steel pipe locks to pass through, and the second steel pipe locks can be extended from the corresponding holes in the side of the steel box wall or retracted into the steel box wall by pulling the pull rod mechanism. By pulling the steel pipe crossbeam horizontally away from the steel box wall, the angle between the two first force-transmitting steel pipes is reduced, and the two first force-transmitting steel pipes drive the corresponding first steel pipe locks to approach each other along the axial direction of the solid steel pipe, thereby retracting the corresponding solid pipe into the steel box wall and the second steel pipe locks into the steel box wall, so that the steel box wall can be subsequently removed from the wall. By pushing the steel pipe crossbeam horizontally toward the steel box wall, the angle of the two first force-transmitting steel pipes becomes larger, and the two first force-transmitting steel pipes drive the corresponding first steel pipe lock buckles to move away from each other along the axial direction of the solid steel pipe, so that the corresponding solid pipes extend out of the steel box wall from the corresponding through holes of the steel box wall, and the second steel pipe lock buckles extend out of the steel box wall from the corresponding holes on the side of the steel box wall. In this way, the steel wall box structure used for connecting the underground space can be pre-buried in the wall, and can resist soil pressure when the underground foundation pit is excavated, avoiding fracture of the steel box wall and the surrounding steel plates.

[0014] Preferably, in the above-mentioned steel wall box structure for connecting underground spaces, longitudinally and transversely arranged reinforcing ribs are provided inside the steel box wall.

[0015] Preferably, in the above-mentioned steel wall box structure for connecting underground spaces, after long wooden slats are provided in the slots, a waterproof membrane is covered on the side of the steel box wall where the slots are provided.

[0016] It can be seen from the technical solutions disclosed above that, compared with the prior art, the present invention has the following beneficial effects:

[0017] The present invention discloses a steel wall box structure for connecting underground spaces, comprising: two steel plates, a rectangular steel wall box with a self-locking system, and a pull rod mechanism. The rectangular steel wall box with a self-locking system comprises a steel box wall and a plurality of locking systems. The plurality of locking systems are arranged in the steel box wall. The steel box wall is a rectangular parallelepiped consisting of a front panel, a back panel, a top panel, a bottom panel, and two side panels. The two steel plates are respectively fixed to the four sides of the front panel and the four sides of the back panel of the steel box wall. Each steel plate is rectangular, and the middle part of each steel plate has a portion for accommodating the steel box wall. The steel box wall has an opening, the front panel and the back panel of the steel box wall are flush with the two steel plates respectively, and a number of vertically arranged slots are provided on the front panel or the back panel of the steel box wall, and the number of the slots is the same as the number of the locking systems. The top plate and the bottom plate of the steel box wall are respectively provided with through holes for the upper and lower ends of the locking systems to extend out, and the locking systems can be fixedly connected with the pull rod mechanism through the corresponding slots through the hinged bolts, and by pulling the pull rod mechanism, the upper and lower ends of all locking systems can be extended from the corresponding through holes of the steel box wall out of the steel box wall or retracted into the steel box wall. During use, the steel wall box structure used to connect the underground space can be pre-buried in the wall. By pulling the pull rod mechanism, the upper and lower ends of all the locking systems can be extended out of the corresponding through holes of the steel box wall. This makes the connection between the steel box wall and the surrounding walls more secure, avoids the steel plate from breaking at the connection between the steel plate and the steel box wall due to being unable to withstand the soil pressure, and improves the safety of the wall. When the wall needs to connect the underground space on both sides of the wall, it is only necessary to pull the pull rod mechanism to retract the upper and lower ends of all the locking systems into the steel box wall, cut the steel plates around the rectangular steel wall box with the self-locking system, and then remove the rectangular steel wall box with the self-locking system. This avoids the need to chisel out the wall later. This not only facilitates construction and reduces construction difficulty, but also effectively protects the original wall structure. Furthermore, by installing steel plates around the steel wall box with a built-in locking system, they not only become part of the lintel and concealed column, thus increasing their strength, but also allow groundwater to form a U-shaped path as it flows from the unexcavated wall side to the excavated wall side. This solves the problem of linear seepage at the connecting openings in traditional methods, increases the groundwater seepage path, and effectively reduces the risk of wall leakage. Furthermore, because the rectangular steel wall box with a built-in locking system can be recycled, the use of steel bars is reduced, construction costs are saved, environmental pollution is reduced, and green construction is achieved. Furthermore, because the steel wall box structure is pre-buried in the wall, the upper and lower ends of the locking system extend from the corresponding through-holes in the steel box wall, and the wall is cast after the steel box wall is cast. This allows the upper and lower ends of the locking system and the steel plates to jointly resist the soil pressure on the wall, preventing the steel plate from breaking at the connection with the steel box wall, thereby ensuring the safety of the wall and foundation pit construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the steel wall box structure used for connecting underground spaces according to the present invention.

[0019] Figure 2 It is a schematic diagram of the assembly between the steel box wall and the steel plate in the present invention.

[0020] Figure 3 It is a side view of the steel box wall in the present invention.

[0021] Figure 4 It is a distribution diagram of the reinforcing ribs in the present invention.

[0022] Figure 5 It is a schematic diagram of the assembly between the locking system and the pull rod mechanism in the present invention.

[0023] Figure 6 It is a schematic diagram of the assembly between the locking system and the pull rod mechanism located on both sides of the present invention.

[0024] Figure 7 It is a structural schematic diagram of the first steel pipe lock buckle in the present invention.

[0025] Figure 8 It is a structural schematic diagram of the solid steel pipe in the present invention.

[0026] Figure 9 It is a structural schematic diagram of the pull rod mechanism in the present invention.

[0027] Figure 10 This is a structural diagram of the locking system with its upper and lower ends retracted into the steel box wall.

[0028] Figure 11 This is a structural diagram of the locking system with the upper and lower ends extending out of the steel box wall.

[0029] Figure 12 It is a structural schematic diagram of the steel wall box structure used for connecting the underground space in step 3 of the present invention.

[0030] Figure 13 yes Figure 12 AA cross-sectional view.

[0031] Figure 14 It is a structural schematic diagram of the steel wall box structure used for connecting the underground space in step 4 of the present invention.

[0032] Figure 15 It is a structural schematic diagram of the steel wall box structure used for connecting the underground space in step 5 of the present invention.

[0033] Figure 16 It is a structural schematic diagram of the steel wall box structure used for connecting the underground space in step 6 of the present invention.

[0034] In the figure: 1-steel plate, 2-steel box wall, 2.1-slot, 2.2-hole, 2.3-reinforcement rib, 3-locking system, 3.1-spring, 3.2-first steel pipe lock, 3.2.1-hollow pipe, 3.2.2-solid pipe, 3.2.3-steel pipe purlin, 3.3-solid steel pipe, 3.4-hollow steel pipe hoist, 3.5-hoist handle, 3.6-first force-transmitting steel pipe, 3.7-triangular steel plate, 3.8-second hoist handle, 3.9-second steel pipe lock, 4-pull rod mechanism, 4.1-steel pipe crossbeam, 4.2-second force-transmitting steel pipe, 5-Ω-type rubber water-stop cap, 6-soil, 7-wall, 8-lintel, 9-hidden column, 10-basement built first, 11-floor slab, 12-basement built later. DETAILED DESCRIPTION

[0035] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. The following examples, combined with the accompanying drawings, will provide a detailed description of the technical content and features of the present invention. It should be noted that the drawings are all in a very simplified form and are not precisely proportioned, and are only used to conveniently and clearly assist in illustrating the purpose of the embodiments of the present invention. For ease of description, the "upper" and "lower" described below are consistent with the upper and lower directions in the accompanying drawings, but this does not constitute a limitation of the technical solution of the present invention.

[0036] See also Figures 1 to 16, this embodiment discloses a steel wall box structure for connecting underground spaces, comprising: two steel plates 1, a rectangular steel wall box with a self-locking system, and a pull rod mechanism 4. The rectangular steel wall box with a self-locking system comprises a steel box wall 2 and multiple locking systems 3. The multiple locking systems 3 are arranged in the steel box wall 2. The steel box wall 2 is a rectangular parallelepiped consisting of a front panel, a back panel, a top panel, a bottom panel, and two side panels. The two steel plates 1 are respectively fixed to the four sides of the front panel and the four sides of the back panel of the steel box wall 2. Each steel plate 1 is rectangular, and the middle part of each steel plate 1 has a portion for accommodating the steel box wall 2. The front and back panels of the steel box wall 2 are flush with the two steel plates 1 respectively. A number of vertically arranged slots 2.1 are provided on the front or back panel of the steel box wall 2. The number of the slots 2.1 is the same as the number of the locking systems 3. The top and bottom plates of the steel box wall 2 are respectively provided with through holes for the upper and lower ends of the locking systems 3 to extend out. The locking systems 3 can pass through the corresponding slots 2.1 and be fixedly connected with the pull rod mechanism 4 by hinged bolts. By pulling the pull rod mechanism 4, the upper and lower ends of all locking systems 3 can be extended from the corresponding through holes of the steel box wall 2 out of the steel box wall 2 or retracted into the steel box wall 2. During use, the steel wall box structure for connecting the underground space can be pre-buried in the wall 7. By pulling the pull rod mechanism 4, the upper and lower ends of all the locking systems 3 are extended out of the corresponding through holes of the steel box wall 2. This makes the connection between the steel box wall 2 and the surrounding walls 7 more secure, avoids the steel plate 1 from breaking at the connection between the steel plate 1 and the steel box wall 2 due to being unable to withstand the soil pressure, and improves the safety of the wall 7. When the wall 7 needs to connect the underground space on both sides of the wall 7, it is only necessary to pull the pull rod mechanism 4 to retract the upper and lower ends of all the locking systems 3 into the steel box wall 2, cut the steel plates 1 around the rectangular steel wall box with the locking system, and then remove the rectangular steel wall box with the locking system, avoiding the need to chisel out the wall 7 at a later stage. This not only facilitates construction and reduces construction difficulty, but also effectively protects the original wall 7 structure. Furthermore, by installing steel plates 1 around the steel wall box with a self-locking system, they not only become part of the lintel 8 and concealed columns 9, thus increasing their strength, but also form a U-shaped path for groundwater to flow from the unexcavated side of the wall 7 to the excavated side. This solves the linear seepage problem that occurs at the wall 7 in traditional methods, increases the groundwater seepage path, and effectively reduces the risk of leakage from the wall 7. Furthermore, because the rectangular steel wall box with a self-locking system can be recycled, the use of steel bars is reduced, construction costs are saved, environmental pollution is reduced, and green construction is achieved.In addition, since the steel wall box structure is pre-buried in the wall 7, the upper and lower ends of the locking system 3 extend from the corresponding through holes of the steel box wall 2 and the wall 7 is cast after the steel box wall 2 is cast. The upper and lower ends of the locking system 3 can jointly resist the soil pressure on the wall 7 with the steel plate 1, avoiding the steel plate 1 from breaking at the connection between it and the steel box wall 2, thereby ensuring the safety of the wall 7 and the foundation pit construction.

[0037] Preferably, in the above-mentioned steel wall box structure for connecting underground spaces, the locking system 3 includes two springs 3.1, two first steel pipe locks 3.2, a solid steel pipe 3.3, two hollow steel pipe hoists 3.4, two hoist handles 3.5, two first force-transmitting steel pipes 3.6 and a triangular steel plate 3.7, wherein the first steel pipe lock 3.2 includes a hollow pipe 3.2.1, a solid pipe 3.2.2 and two steel pipe purlins. Support 3.2.3, one end of the hollow tube 3.2.1 is coaxially connected to one end of a solid tube 3.2.2, the two steel tube purlin supports 3.2.3 and a hollow steel tube hoist 3.4 are respectively sleeved on the other end of the hollow tube 3.2.1, and the two steel tube purlin supports 3.2.3 are respectively located on the upper and lower sides of the hollow steel tube hoist 3.4, the two steel tube purlin supports 3.2.3 are fixedly connected to the hollow tube 3.2.1, One end of the hoist handle 3.5 is fixedly connected to the corresponding hollow steel pipe hoist 3.4, the triangular steel plate 3.7 is a triangular plate, and the three corners of the triangular steel plate 3.7 are respectively hinged to the other end of the two first force transmission steel pipes 3.6 and the pull rod mechanism 4 through hinge bolts, and the two ends of the solid steel pipe 3.3 are respectively extended into the hollow tubes 3.2.1 of the two first steel pipe locks 3.2, and the two springs 3.1 are respectively arranged on both sides of the solid steel pipe 3.3 and located in the hollow tubes 3.2.1 of the corresponding first steel pipe locks 3.2, and the two ends of the spring 3.1 are respectively fixedly connected to the solid tube 3.2.2 of the corresponding first steel pipe lock 3.2 and the corresponding ends of the solid steel pipe 3.3, and the spring 3.1 is a compression spring 3.1, and the spring 3.1 pushes the solid tube 3.2.2 away from the solid steel pipe 3.3 in a natural state.

[0038] Preferably, in the above-mentioned steel wall box structure for connecting underground spaces, the triangular steel plate 3.7 is an isosceles triangle, and the distance from the connection between the other ends of the two first force-transmitting steel pipes 3.6 and the triangular steel plate 3.7 to the connection between the pull rod mechanism 4 and the triangular steel plate 3.7 is equal, so that the pull rod mechanism can synchronously and smoothly operate the movement of the two first steel pipe locks 3.2.

[0039] Preferably, in the above-mentioned steel wall box structure for connecting underground spaces, the pull rod mechanism 4 includes a steel pipe crossbeam 4.1 and several second force-transmitting steel pipes 4.2, the second force-transmitting steel pipes 4.2 correspond one-to-one to the locking system 3, and one end of the second force-transmitting steel pipe 4.2 is provided with a threaded section, and the steel pipe crossbeam 4.1 is provided with several internal threaded holes along its own axial direction that match the threaded sections of the second force-transmitting steel pipe 4.2, and the three corners of the triangular steel plate 3.7 are respectively hinged to the other end of the two first force-transmitting steel pipes 3.6 and the other end of the second force-transmitting steel pipe 4.2 through hinge bolts.

[0040] Preferably, in the above-mentioned steel wall box structure for connecting underground spaces, by pulling the steel pipe crossbeam 4.1 horizontally in the direction away from the steel box wall 2, the angle of the two first force-transmitting steel pipes 3.6 becomes smaller, and the two first force-transmitting steel pipes 3.6 drive the corresponding first steel pipe locks 3.2 to approach each other along the axial direction of the solid steel pipe 3.3, so that the corresponding solid pipes 3.2.2 are retracted into the steel box wall 2, that is, the upper and lower ends of all the lock systems 3 are retracted from the steel box wall 2. By pushing the steel pipe crossbeam 4.1 horizontally toward the steel box wall 2, the angles of the two first force-transmitting steel pipes 3.6 are increased, and the two first force-transmitting steel pipes 3.6 drive the corresponding first steel pipe locks 3.2 to move away from each other along the axial direction of the solid steel pipe 3.3, so that the corresponding solid pipes 3.2.2 extend out of the steel box wall 2 from the corresponding through holes of the steel box wall 2, that is, the upper and lower ends of the locking system 3 extend out of the steel box wall 2 from the corresponding through holes of the steel box wall 2.

[0041] Preferably, in the above-mentioned steel wall box structure for connecting underground spaces, the locking system 3 located on both sides also includes a second hoist handle 3.8 and a second steel pipe lock 3.9, one end of the second hoist handle 3.8 is fixedly connected to the hollow steel pipe hoist 3.4, and one end of the second steel pipe lock 3.9 is hinged to the other end of the second hoist handle 3.8. Holes 2.2 for the other end of the corresponding second steel pipe lock 3.9 to pass through are respectively provided on the left and right side panels of the steel box wall 2. By pulling the pull rod mechanism 4, the second steel pipe lock 3.9 can be extended from the corresponding hole 2.2 on the side of the steel box wall 2 to the steel box wall 2 or retracted into the steel box wall 2. By pulling the steel pipe crossbeam 4.1 horizontally away from the steel box wall 2, the angle of the two first force-transmitting steel pipes 3.6 becomes smaller, and the two first force-transmitting steel pipes 3.6 drive the corresponding first steel pipe lock buckles 3.2 to approach each other along the axial direction of the solid steel pipe 3.3, so that the corresponding solid pipes 3.2.2 are retracted into the steel box wall 2, and the second steel pipe lock buckles 3.9 are retracted into the steel box wall 2, so that the steel box wall 2 can be subsequently removed from the wall 7. By pushing the steel pipe crossbeam 4.1 horizontally toward the steel box wall 2, the angle of the two first force-transmitting steel pipes 3.6 becomes larger, and the two first force-transmitting steel pipes 3.6 drive the corresponding first steel pipe locking buckles 3.2 to move away from each other along the axial direction of the solid steel pipe 3.3, so that the corresponding solid pipes 3.2.2 extend out of the steel box wall 2 from the corresponding through holes in the steel box wall 2, and the second steel pipe locking buckles 3.9 extend out of the steel box wall 2 from the corresponding holes 2.2 on the side of the steel box wall 2. In this way, the steel wall box structure used for connecting the underground space can be pre-buried in the wall 7. When the underground foundation pit is excavated, it can resist the soil pressure and avoid fracture of the steel box wall 2 and the surrounding steel plates 1.

[0042] Preferably, in the above-mentioned steel wall box structure for connecting underground spaces, a guide cylinder (not shown) is further provided in the steel box wall 2. The guide cylinder is arranged obliquely, and the number of the guide cylinders is the same as the number of the second steel pipe lock buckles 3.9. The upper end of the guide cylinder is fixedly provided at the corresponding hole 2.2 of the side panel of the steel box wall 2, so that the outer end of the second steel pipe lock buckle 3.9 can smoothly extend out of the steel box wall 2 and retract into the steel box wall 2.

[0043] Preferably, in the above-mentioned steel wall box structure for connecting underground spaces, in order to allow the upper and lower ends of the locking system 3 to be smoothly retracted into the steel box wall 2, before the steel wall box structure for connecting underground spaces is pre-buried in the wall 7, the upper and lower ends of all locking systems 3 are extended out of the steel box wall 2 from the corresponding through holes of the steel box wall 2 by pulling the pull rod mechanism 4, and an Ω-type rubber water-stopping cap 5 is respectively installed on the parts of the upper and lower ends of all locking systems 3 extending out of the steel box wall 2. By setting the Ω-type rubber water-stopping cap 5, on the one hand, it is for water stopping, and on the other hand, it is for the upper and lower ends of all locking systems 3 to contact with the concrete poured later, so as to retract smoothly.

[0044] Preferably, in the aforementioned steel wall box structure for connecting underground spaces, to further prevent concrete / water from entering the steel box wall 2 through the slot 2.1 during subsequent pouring, after long wooden slats are provided in the slot, a waterproof membrane can be applied to the side of the steel box wall 2 where the slot 2.1 is provided. When the steel box wall 2 needs to be removed from the wall 7, the waterproof membrane can be removed first, followed by the removal of the long wooden slats.

[0045] Preferably, in the above-mentioned steel wall box structure for connecting the underground space, in order to ensure that the end of the locking system 3 for connecting the pull rod mechanism 4 can extend from the slot 2.1 when the long wooden slats are removed later, the long wooden slats and the end of the locking system 3 for connecting the pull rod mechanism 4 can be connected by steel wire.

[0046] Preferably, in the above-mentioned steel wall box structure for underground space communication, in order to improve the strength of the steel box wall 2, longitudinal and transverse reinforcing ribs 2.3 are provided inside the steel box wall 2.

[0047] See also Figures 1 to 15 This embodiment discloses a method for using a steel wall box structure for connecting underground spaces, comprising the following steps:

[0048] Step 1: Place the steel wall box structure for connecting the underground space as described above at the part where the hole needs to be reserved on the wall 7 to be constructed, and pull the pull rod mechanism 4 to extend the upper and lower ends of all the locking systems 3 out of the corresponding through holes of the steel box wall 2. Install an Ω-shaped rubber water-stopping cap 5 on the upper and lower ends of all the locking systems 3 that extend out of the steel box wall 2. The Ω-shaped rubber water-stopping cap 5 is provided to stop water on the one hand, and to ensure that the upper and lower ends of the locking system 3 are connected to the concrete poured later on the other hand. To ensure smooth retraction without contact with the soil, remove the pull rod mechanism 4 from the locking system 3, use a long wooden slat to seal the slot 2.1 and fix the end of the locking system 3 connected to the pull rod mechanism 4. The long wooden slat is fixedly connected to the end of the locking system 3 connected to the pull rod mechanism 4. The long wooden slat is provided to prevent concrete / water from entering the steel box wall 2 through the slot 2.1, and to fix the position of the triangular steel plate 3.7 to prevent the upper and lower ends of the locking system 3 from retracting into the steel box wall 2.

[0049] Step 2, tie the steel bars of the remaining wall 7 around the rectangular steel wall box with a self-locking system, perform steel reinforcement density treatment between the steel plates 1 on the upper side of the steel box wall 2 and between the steel plates 1 on the lower side of the steel box wall 2, respectively, perform steel reinforcement density treatment between the steel plates 1 on both sides of the steel box wall 2, support the formwork and cast concrete, so that the steel wall box structure for connecting the underground space and the surrounding remaining walls 7 form an integral wall, the upper and lower sides of the rectangular steel wall box with a self-locking system respectively form lintels 8, and the left and right sides of the rectangular steel wall box with a self-locking system respectively form hidden columns 9;

[0050] Step 3: Drill holes on one side of the lintel 8 to set the dowel bars 14, and then build the basement 10 floor slab 11 to complete the construction of the basement 10.

[0051] Preferably, in the method for using the steel wall box structure for connecting underground spaces as described above, the following steps are further included after step 3:

[0052] Step 4, after the later excavation, the soil 6 of the basement 12 is built, and the dowel bars 14 are drilled on the other side of the lintel 8. After the construction, the floor 11 of the basement 12 is built, and the construction of the basement 12 is completed;

[0053] Step 5: Remove the long wooden slats from the slots 2.1. When removing the long wooden slats, the ends of the locking systems 3 for connecting the pull rod mechanisms 4, i.e., the triangular steel plates 3.7, can be brought out of the slots 2.1. The pull rod mechanisms 4 are connected to the corresponding locking systems 3 via hinged bolts. The pull rod mechanisms 4 are pulled outward horizontally so that the upper and lower ends of all locking systems 3 are retracted into the steel box wall 2.

[0054] Step 6: Use a cutting tool (not shown) to cut the steel plates 1 around the steel wall box of the self-locking system 3, remove the steel wall box of the self-locking system 3, and fill the holes at the Ω-shaped rubber water stop cap 5 with concrete to form a connecting hole, thereby realizing the connection between the first-built basement 10 and the later-built basement 12.

[0055] The present invention provides a method for using a steel wall box structure for connecting underground spaces. The method places the steel wall box structure for connecting underground spaces at a position on a wall 7 to be constructed where an opening needs to be reserved. The steel wall box structure for connecting underground spaces comprises: two steel plates 1, a rectangular steel wall box with a built-in locking system, and a pull rod mechanism 4. The rectangular steel wall box with a built-in locking system comprises a steel box wall 2 and multiple locking systems 3. The multiple locking systems 3 are arranged in the steel box wall 2. When in use, the steel wall box structure for connecting underground spaces can be pre-buried in the wall 7. By pulling the pull rod mechanism 4, the upper and lower ends of all the locking systems 3 extend out of the corresponding through holes of the steel box wall 2 from the steel box wall 2, so that the connection between the steel box wall 2 and the surrounding walls 7 is more firm, thereby avoiding the steel plate 1 from breaking at the connection between the steel plate 1 and the steel box wall 2 due to being unable to withstand the soil pressure, thereby improving the safety of the wall 7. When the wall 7 needs to connect the underground spaces on both sides of the wall 7, it is only necessary to pull the pull rod mechanism 4 to retract the upper and lower ends of all the locking systems 3 into the steel box wall 2, cut the steel plates 1 around the rectangular steel wall box with the self-locking system, and then remove the rectangular steel wall box with the self-locking system, avoiding the need to chisel out the wall 7 later. This not only facilitates construction and reduces construction difficulty, but also effectively protects the original wall 7 structure. In addition, since the rectangular steel wall box with the self-locking system can be recycled, the use of steel bars is reduced, the cost is saved, the pollution to the environment is reduced, and green construction is achieved.

[0056] The above description is only a description of the preferred embodiments of the present invention and does not limit the scope of the present invention. Any changes and modifications made by ordinary technicians in the field of the present invention based on the above disclosure shall fall within the scope of protection of the claims.

Claims

1. A steel wall box structure for connecting underground spaces, characterized in that: include: Two steel plates, a rectangular steel wall box with a self-locking system and a pull rod mechanism. The rectangular steel wall box with a self-locking system includes a steel box wall and multiple locking systems. The multiple locking systems are arranged in the steel box wall. The steel box wall is a rectangular parallelepiped consisting of a front panel, a back panel, a top panel, a bottom panel and two side panels. The two steel plates are respectively fixed to the four sides of the front panel and the four sides of the back panel of the steel box wall. Each steel plate is rectangular and has an opening in the middle of each steel plate for accommodating the steel box wall. The steel The front panel and the back panel of the steel box wall are flush with the two steel plates respectively. Several vertically arranged slots are provided on the front panel or the back panel of the steel box wall. The number of the slots is the same as the number of the locking systems. The top plate and the bottom plate of the steel box wall are respectively provided with through holes for the upper and lower ends of the locking systems to extend out. The locking systems can pass through the corresponding slots and be fixedly connected with the pull rod mechanism by hinged bolts. By pulling the pull rod mechanism, the upper and lower ends of all locking systems can be extended from the corresponding through holes of the steel box wall out of the steel box wall or retracted into the steel box wall.

2. The steel wall box structure for underground space communication according to claim 1, characterized in that: The locking system includes two springs, two first steel pipe locks, a solid steel pipe, two hollow steel pipe hoists, two hoist handles, two first force transmission steel pipes and a triangular steel plate. The first steel pipe lock includes a hollow pipe, a solid pipe and two steel pipe purlin supports. One end of the hollow pipe is coaxially connected to one end of a solid pipe. The two steel pipe purlin supports and a hollow steel pipe hoist are respectively sleeved on the other end of the hollow pipe, and the two steel pipe purlin supports are respectively located on the upper and lower sides of the hollow steel pipe hoist. The two steel pipe purlin supports are fixedly connected to the hollow pipe, and one end of the hoist handle is fixedly connected to the corresponding hollow pipe. On the core steel pipe hoist, the triangular steel plate is a triangular plate, and the three corners of the triangular steel plate are hinged to the other end of the two first force transmission steel pipes and the pull rod mechanism through hinged bolts. The two ends of the solid steel pipe are respectively extended into the hollow tubes of the two first steel pipe locks. The two springs are respectively arranged on both sides of the solid steel pipe and are located in the hollow tubes of the corresponding first steel pipe locks. The two ends of the spring are respectively fixedly connected to the solid tube of the corresponding first steel pipe lock and the corresponding end of the solid steel pipe. The spring is a compression spring, and the spring pushes the solid tube away from the solid steel pipe in a natural state.

3. The steel wall box structure for underground space communication according to claim 2, characterized in that: The pull rod mechanism includes a steel pipe crossbeam and several second force-transmitting steel pipes, the second force-transmitting steel pipes corresponding one-to-one to the locking system, a threaded section is provided at one end of the second force-transmitting steel pipe, and several internal threaded holes matching the threaded sections of the second force-transmitting steel pipes are provided on the steel pipe crossbeam along its own axis, and the three corners of the triangular steel plate are respectively hinged to the other end of the two first force-transmitting steel pipes and the other end of the second force-transmitting steel pipe through hinge bolts.

4. The steel wall box structure for underground space communication according to claim 3, characterized in that: By pulling the steel pipe crossbeam horizontally in a direction away from the steel box wall, the angle of the two first force-transmitting steel pipes becomes smaller, and the two first force-transmitting steel pipes drive the corresponding first steel pipe lock buckles to approach each other along the axial direction of the solid steel pipe, so that the corresponding solid pipes are retracted into the steel box wall, that is, the upper and lower ends of all locking systems are retracted into the steel box wall; by pushing the steel pipe crossbeam horizontally in a direction close to the steel box wall, the angle of the two first force-transmitting steel pipes becomes larger, and the two first force-transmitting steel pipes drive the corresponding first steel pipe lock buckles to move away from each other along the axial direction of the solid steel pipe, so that the corresponding solid pipes extend out of the steel box wall from the corresponding through holes of the steel box wall, that is, the upper and lower ends of the locking system extend out of the steel box wall from the corresponding through holes of the steel box wall.

5. The steel wall box structure for underground space communication according to claim 2, characterized in that: The locking system on both sides also includes a second hoist handle and a second steel pipe lock. One end of the second hoist handle is fixedly connected to the hollow steel pipe hoist, and one end of the second steel pipe lock is hinged to the other end of the second hoist handle. Holes are respectively provided on the left and right side panels of the steel box wall for the other end of the corresponding second steel pipe lock to pass through. By pulling the pull rod mechanism, the second steel pipe lock can extend out of the steel box wall from the corresponding hole on the side of the steel box wall or retract into the steel box wall.

6. The steel wall box structure for underground space communication according to claim 5, characterized in that: A guide cylinder is also provided in the steel box wall. The guide cylinder is arranged obliquely. The number of the guide cylinders is the same as the number of the second steel pipe lock buckles. The upper end of the guide cylinder is fixedly provided at the corresponding hole of the side panel of the steel box wall.

7. The steel wall box structure for underground space communication according to claim 1, characterized in that: When using the steel wall box structure for connecting underground spaces, the steel wall box structure for connecting underground spaces is cast together with the wall. Before casting, the steel wall box structure for connecting underground spaces is placed at the position where an opening needs to be reserved on the wall to be constructed. The locking system can pass through the corresponding card slot and is fixedly connected to the pull rod mechanism through a hinged bolt. By pulling the pull rod mechanism, the upper and lower ends of all locking systems are extended out of the steel box wall from the corresponding through holes of the steel box wall, and an Ω-shaped rubber water-stop cap is installed on the upper and lower ends of all locking systems that extend out of the steel box wall respectively. The pull rod mechanism is removed from the locking system, and a long The wooden slats seal the slot and fix the end of the locking system for connecting the pull rod mechanism; tie the steel bars of the remaining walls around the rectangular steel wall box with the self-locking system, and perform steel reinforcement density treatment between the steel plates on the upper side of the steel box wall and between the steel plates on the lower side of the steel box wall, and perform steel reinforcement density treatment between the steel plates on both sides of the steel box wall, and support the formwork and cast concrete so that the steel wall box structure used for connecting the underground space forms an integral wall with the surrounding remaining walls, and the upper and lower sides of the rectangular steel wall box with the self-locking system form lintels, and the left and right sides of the rectangular steel wall box with the self-locking system form hidden columns.

8. The steel wall box structure for underground space communication according to claim 7, characterized in that: When the underground spaces on both sides of the wall need to be connected, take out the long wooden slats at the slots, connect the pull rod mechanism with the corresponding locking system through hinged bolts, and retract the upper and lower ends of all locking systems into the steel box wall by pulling the pull rod mechanism horizontally outward; use cutting tools to cut the steel plates around the steel wall box with the built-in locking system, take out the steel wall box with the built-in locking system, and fill the holes at the Ω-shaped rubber water stop caps with concrete to form a connecting hole, thereby realizing the connection between the first basement built and the later basement built.

9. The steel wall box structure for underground space communication according to claim 1, characterized in that: The interior of the steel box wall is provided with longitudinally and transversely arranged reinforcing ribs.

10. The steel wall box structure for underground space communication according to claim 1, characterized in that: After long wooden slats are set in the slots, a waterproof membrane is covered on the side of the steel box wall where the slots are set.

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