Beamless direct-connection prefabricated energy storage module foundation structure and construction method

Abstract

This application provides a beamless direct-connection prefabricated energy storage cabin foundation structure, including multiple prefabricated piles, each prefabricated pile having an adjustable height seat at its upper end, a bottom frame at the lower end of the energy storage cabin, multiple connecting plates at the lower end of the bottom frame, and a base assembly at the lower end of each connecting plate. Each base assembly docks with each adjustable height seat, the adjustable height seat having a docking seat with an inner conical surface in the center of the docking seat, and the base assembly including a docking plate with an outer conical surface, the outer conical surface engaging with the inner conical surface. This solves the problems of complex structure, long force transmission path, long construction period, and difficulty in disassembly and assembly in traditional three-stage energy storage cabin foundation structures.

Description

Technical Field

[0001] This invention relates to the field of energy storage compartment construction, and in particular to a beamless direct-connection prefabricated energy storage compartment foundation structure and its construction method. Background Technology

[0002] As the core equipment carrier of the energy storage system, the prefabricated energy storage cabin integrates core equipment such as battery packs, converters, and control systems. Its basic structure not only needs to bear the self-weight load of the prefabricated cabin body and internal equipment, but also needs to resist horizontal loads such as wind loads and seismic effects. At the same time, it should meet comprehensive performance requirements such as convenient construction, reliable structure, and controllable cost.

[0003] In traditional prefabricated energy storage module foundation structures, a three-tiered structural system of prefabricated module—foundation beam—prefabricated piles is commonly used. The specific construction of this system is as follows: first, multiple prefabricated piles are driven into the foundation; then, independent columns are constructed on top of the piles; next, foundation beams are poured or erected on top of the independent columns, and steel embedded parts are pre-embedded in the top surface of the foundation beams; finally, the prefabricated module is hoisted and positioned above the foundation beams, and the bottom frame of the prefabricated module is fixed to the embedded parts on the foundation beams through welding. The foundation beams are typically made of cast-in-place reinforced concrete and serve multiple functions, including adjusting uneven settlement of the multiple piles, transferring horizontal loads, providing a flat installation reference surface for the prefabricated module, and serving as a connection interface.

[0004] The system has the following common problems: (1) There are many components, the structure is complex, the amount of materials used is large, and the manufacturing and installation costs are high; (2) The force transmission path is long, the force transmission efficiency is low, and there is a risk of stress concentration; (3) The construction of the foundation beam involves many processes such as steel bar binding, formwork erection, concrete pouring and curing, the amount of wet work on site is large, the construction period is long, and it is greatly restricted by weather conditions; (4) The prefabricated cabin and the foundation beam are usually connected by welding. The connection method is irreversible or difficult to disassemble, which is not conducive to the later maintenance, replacement or decommissioning of the prefabricated cabin, and it is difficult to meet the turnover needs of mobile and temporary energy storage power stations. Summary of the Invention

[0005] This invention provides a beamless direct-connection prefabricated energy storage module foundation structure and its construction method, which solves the problems of complex structure, long force transmission path, long construction period and difficulty in disassembly and assembly of traditional three-stage energy storage module foundation structures.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is: a beamless direct-connection prefabricated energy storage cabin foundation structure, including multiple prefabricated piles, each prefabricated pile having an adjustable height seat at its upper end, the energy storage cabin having a bottom frame at its lower end, the bottom frame having multiple connecting plates at its lower end, each connecting plate having a base assembly at its lower end, and each base assembly docking with each adjustable height seat.

[0007] In the preferred embodiment, the height adjustment seat is provided with a docking seat, the docking seat has an inner conical surface in the center, and the base assembly includes a docking plate, the docking plate has an outer conical surface, the outer conical surface and the inner conical surface are engaged.

[0008] In a preferred embodiment, the base assembly further includes a retaining ring with a retaining flange. The retaining ring is connected to the connecting plate to form an annular groove space. The connecting plate has a flange, which slides in the annular groove space. The retaining flange stops the flange. The side wall of the retaining ring is also provided with a plurality of threaded adjusting stop screws along the circumferential direction. The ends of the adjusting stop screws abut against the outer wall of the flange.

[0009] In the preferred embodiment, the lower end of the docking seat is provided with an inner cavity, the lower end of the inner cavity is provided with a lower connecting plate, the upper end of the precast pile is provided with a precast plate, the precast plate is provided with multiple adjusting studs along the circumference, the lower connecting plate is provided with multiple bolt through holes along the circumference, each adjusting stud passes through the bolt through hole, and the adjusting stud is fitted with a threaded clamping nut on both sides of the lower connecting plate, the clamping nut abuts against the lower connecting plate.

[0010] In the preferred embodiment, the precast slab has a connecting core rod in the center, the lower connecting plate has a hollow hole in the center, the connecting plate has a conical hole in the center, the connecting core rod passes through the hollow hole to extend into the conical hole, and the bottom is supported by a reserved hole at the conical hole.

[0011] In the preferred embodiment, the docking plate is provided with multiple guide grooves along the circumference, and each guide groove is connected to the conical hole and the annular groove space at both ends.

[0012] In the preferred embodiment, a rotatable ring seat is fitted on the outer side of the docking seat. The ring seat has multiple T-shaped slots along the circumference. The outer side wall of the T-shaped slot has a closing hole. A locking block is provided in the T-shaped slot. A crossbar sleeve is also provided. One end of the crossbar sleeve is threaded to the locking block. A cross connecting rod is also provided. The end of the cross connecting rod is sleeved with the crossbar sleeve.

[0013] In the preferred embodiment, the side wall of the ring seat is provided with multiple tightening bolts along the circumferential direction, and one end of the tightening bolt abuts against the outer wall of the mating seat.

[0014] In the preferred scheme, Design the bottom frame of the energy storage compartment and determine the relative positions of each connecting plate; Using the relative positions of each connecting plate as a reference, construct the corresponding precast piles at the selected locations; Construct the height adjustment seat and base assembly; Install height adjustment brackets on the precast slabs; The height of the mating seats is roughly adjusted to ensure that the upper surface of each mating seat is at the same height. Connect the upper ends of each precast pile with a horizontal connecting rod; Fabricate the energy storage compartment and bottom frame, and install the connecting plates at the lower end of the bottom frame according to the design positions; Install each base component onto each connecting plate; The energy storage compartment is hoisted and installed, and each base component is aligned with the height adjustment seat of each precast pile and placed in place, with the docking plate adapting to the position of the docking seat; Lock the position of the docking plate; Fine-tune the height of each docking seat to make the energy storage compartment level; Lock the position of the docking plate and connect the docking seat to the docking plate with bolts.

[0015] The preferred solution includes reinforcement methods: Install the connecting core rod in the center of the precast slab; Concrete is injected into the inner cavity through the pre-drilled hole until it enters the conical hole and approaches the height of the upper end of the connecting core rod. After the concrete in the inner cavity and the conical hole has solidified, metal repair agent is injected into the upper end of the conical hole through the reserved hole. The metal repair agent flows into the annular groove space through the guide channel and fills the annular groove space; Wait for the metal repair agent to solidify to complete the reinforcement work.

[0016] The beneficial effects of this invention are as follows: It eliminates the need for precast beams, using a direct connection between the energy storage tank chassis frame and each precast pile, thus optimizing the stress path; the energy storage tank and bottom frame can be manufactured in advance in the factory, reducing the construction waiting time for concrete structures and shortening the overall construction cycle; each precast pile has an independent height adjustment structure at its top, reducing the accuracy requirements for precast pile construction and lowering the dependence on the skill level of construction personnel and the precision of equipment; the base assembly adopts a horizontal floating design, which can adaptively adjust to the position of the precast piles, reducing assembly stress; the modular structure allows for non-destructive disassembly of the components on the upper part of the precast piles, facilitating reuse; and a pre-reinforced structure allows for reinforcement of the connection structure using concrete and metal repair agents in cases where the foundation structure is not disassembled for a long period, improving the overall strength and stability of the energy storage tank foundation structure. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0018] Figure 1 This is a schematic diagram of the beamless direct-connection precast piles for the energy storage compartment.

[0019] Figure 2 This is a schematic diagram of a beamless direct connection optimized structure.

[0020] Figure 3 It is an optimized top view of the structure.

[0021] Figure 4 This is an exploded view of the structure at the connection between the bottom of the energy storage compartment and the precast piles.

[0022] Figure 5 This is an exploded bottom view of the connection structure.

[0023] Figure 6 This is a diagram illustrating the explosion of the heightened components.

[0024] Figure 7 This is a structural diagram of the docking seat.

[0025] Figure 8 This is a cross-sectional view of the docking point.

[0026] Figure 9 This is a schematic diagram of the structural reinforcement at the connection point.

[0027] In the diagram: 1. Precast pile; 101. Precast slab; 102. Adjusting stud; 103. Clamping nut; 2. Height adjustment seat; 201. Connecting seat; 202. Inner conical surface; 203. Inner cavity; 204. Lower connecting plate; 205. Hole; 206. Bolt through hole; 3. Base assembly; 301. Connecting plate; 302. Outer conical surface; 303. Ring groove space; 304. Flange; 305. Flange edge; 306. Adjusting stop screw; 307. Conical hole; 308. Guide channel; 309. Energy storage chamber; 4. Bottom frame; 5. Reserved hole; 501. Connecting plate; 502. Crossbar sleeve; 6. Connecting core rod; 7. Ring sleeve seat; 8. T-shaped slot; 801. Closing hole; 802. Tightening bolt; 803. Locking block; 9. Protruding ring; 10. Horizontal connecting rod. Detailed Implementation

[0028] Example 1: like Figure 1 In this paper, a beamless direct-connection prefabricated energy storage cabin foundation structure is mainly composed of prefabricated piles, prefabricated energy storage cabins, sleeve-type nodes, and wedge-shaped pins. The components are reliably connected through sleeve-type nodes and wedge-shaped pins to form a complete force transmission system.

[0029] Precast piles are prestressed high-strength concrete pipe piles, serving as the bottom-level load-bearing components of the entire structure. Their number and arrangement are determined based on the load distribution of the energy storage precast chamber and the bearing capacity requirements of the foundation. Each precast pile consists of a pile body and a pile top. The diameter of the precast piles ranges from 300mm to 600mm, the wall thickness from 70mm to 120mm, and the length from 8m to 25m, with specific specifications selected based on design geological conditions and bearing capacity requirements. Precast piles are produced using a centrifugal process, with a concrete strength grade of not less than C80. The pipe piles are internally reinforced with a steel skeleton composed of prestressed and non-prestressed steel bars. The outer peripheral wall of the pile top has a connecting surface for mating with a wedge-shaped key; this connecting surface is either a smooth cylindrical surface or has a connecting groove. A limiting ring is provided at the pile top to limit the insertion depth of the wedge-shaped key. The width of the limiting ring is 10mm to 20mm, and the height is 5mm to 10mm.

[0030] The energy storage prefabricated module can be one or more of the following: battery energy storage prefabricated module, converter prefabricated module, transformer prefabricated module, or integrated prefabricated module, and its size is determined according to actual needs. The energy storage prefabricated module has a bottom frame, which is a grid-shaped or mesh-shaped steel frame structure composed of I-beams or H-beams. The grid-shaped steel frame structure includes a first main frame arranged along the length of the energy storage prefabricated module and a second main frame arranged along the width of the energy storage prefabricated module, with the first and second main frames intersecting to form a grid-like layout.

[0031] The grid-shaped steel frame structure includes multiple first frame beams arranged along the length of the prefabricated energy storage compartment and multiple second frame beams arranged along the width of the prefabricated energy storage compartment. The first and second frame beams intersect to form a grid layout. In one specific embodiment, when the size of the prefabricated energy storage compartment is 12m × 6m × 4m, the bottom frame is made of H-beams, the first main frame is made of H300 × 150 × 6.5 × 9 steel, and the second main frame is made of H300 × 150 × 6.5 × 9 steel. The intersections are connected by welding or high-strength bolts. In another specific embodiment, when the size of the prefabricated energy storage compartment is larger, the bottom frame is made of I-beams, and the type of I-beam is determined according to the load-bearing capacity requirements. The steel material of the bottom frame is Q235B or Q355B.

[0032] Several sleeve-type nodes are fixed on the bottom frame, and the number and location of these sleeve-type nodes correspond one-to-one with the precast piles. Each sleeve-type node is located at the intersection of the bottom frame or at the node of the frame beam. The number of sleeve-type nodes is determined by the number of precast piles. When the precast piles are arranged in a matrix, the number of sleeve-type nodes is the same as the number of precast piles. When the precast piles are arranged in a 3×4 matrix, the number of sleeve-type nodes is 12; when the precast piles are arranged in a 4×4 matrix, the number of sleeve-type nodes is 16.

[0033] Each of the sleeve-type nodes has a sleeve with an open lower end. The sleeve is fitted around the outer periphery of the top of the corresponding precast pile, so that the top of the pile is accommodated within the inner cavity of the sleeve. The sleeve is a cylindrical structure with an inner diameter slightly larger than the outer diameter of the precast pile, ranging from 310mm to 610mm, the specific size being determined according to the diameter of the corresponding precast pile. The wall thickness of the sleeve is 8mm to 16mm, made of Q235B or Q355B grade steel plate. The height of the sleeve ranges from 300mm to 600mm, with an open lower end and a closed upper end connecting to the bottom frame.

[0034] The inner cavity of the sleeve has a support surface at its bottom for supporting the top of the precast pile. This support surface is an annular plane. In one specific embodiment, the support surface is an annular plane, with the inner diameter of the annulus slightly larger than the outer diameter of the precast pile, the outer diameter being 1.2 to 1.5 times the inner diameter. In another embodiment, the support surface is a conical curved surface with a slope of 5° to 15°, facilitating the installation and positioning of the wedge-shaped pin.

[0035] The wedge-shaped key is a connecting component used to securely fasten the sleeve to the precast pile. The wedge-shaped key has an inner wedge surface and an outer wedge surface. The inner wedge surface abuts against the outer wall of the top of the precast pile, and the outer wedge surface abuts against the inner wall of the sleeve. There are four wedge-shaped keys, evenly distributed along the circumference of the sleeve, corresponding to the number and position of the insertion holes.

[0036] The wedge-shaped key has a wedge-shaped structure with a trapezoidal or triangular cross-section. The length of the wedge-shaped key is along the radial direction of the sleeve, with one end being the insertion end and the other the striking end. The width of the wedge-shaped key is 30mm to 60mm, the height is 50mm to 100mm, and the thickness is 20mm to 40mm. The wedge angle of the wedge-shaped key ranges from 5° to 15°, with the specific angle determined based on the outer diameter of the precast pile and the inner diameter of the sleeve. In an optional embodiment, the inner wedge surface of the wedge-shaped key is provided with anti-slip grooves to enhance friction with the outer wall of the precast pile top. The anti-slip grooves are serrated or rhomboid in shape, with a depth of 1mm to 3mm.

[0037] The sleeve-type node is firmly fixed to the precast pile by multiple circumferentially distributed wedge-shaped pins, thereby achieving a direct dry connection between the energy storage precast compartment and the precast pile without welding or foundation beams. When the wedge-shaped pin is inserted into the gap between the sleeve and the precast pile, the inner wedge surface of the wedge-shaped pin abuts against the outer wall of the precast pile top, and the outer wedge surface abuts against the inner wall of the sleeve. By tapping or applying axial force, the wedge-shaped pin is further inserted, thereby achieving a tight fit and reliable connection between the sleeve and the precast pile. In a preferred embodiment, the insertion direction of the wedge-shaped pin makes a 90° angle with the horizontal plane to facilitate construction operations and ensure connection reliability.

[0038] In an optional embodiment, a locking device is further provided between the wedge pin and the sleeve to prevent the wedge pin from loosening or coming off during use. The locking device may be a locking washer.

[0039] The force transmission path of the beamless direct-connection prefabricated energy storage module foundation structure is as follows: the weight and operating load of the prefabricated energy storage module are transferred to the sleeve-type nodes through the bottom frame. The sleeve-type nodes then transfer the load to the prefabricated piles via wedge-shaped pins, and the prefabricated piles ultimately transfer the load to the foundation. The force transmission path is clear and direct, and the force transmission is efficient. Because the intermediate force transmission element of the foundation beam is eliminated, the load does not need to pass through a crisscrossing beam system, but is directly transferred to the prefabricated piles through the sleeve-type nodes and wedge-shaped pins. Therefore, the force transmission path is the shortest and the force transmission efficiency is the highest.

[0040] The wedge-shaped pin key adopts a reversible mechanical snap-fit ​​connection method. During disassembly, simply remove the anti-reverse pin and knock the key out in the opposite direction to lift the prefabricated compartment as a whole away from the prefabricated pile. The top of the prefabricated pile and the sleeve are not damaged. The prefabricated pile can be reused in its original position, and the prefabricated compartment can be lifted as a whole to a new site for reinstallation. This meets the needs of rapid deployment and flexible scheduling of mobile and temporary energy storage power stations, and has significant economic benefits throughout its entire life cycle. It is particularly suitable for scenarios such as capacity expansion and decommissioning of energy storage power stations.

[0041] Example 2: like Figure 2-9 In the present invention, a beamless direct-connection prefabricated energy storage cabin foundation structure includes multiple prefabricated piles 1, each prefabricated pile 1 having an adjustable height seat 2 at its upper end, an energy storage cabin 4 having a bottom frame 5 at its lower end, the bottom frame 5 having multiple connecting plates 502 at its lower end, each connecting plate 502 having a base assembly 3 at its lower end, and each base assembly 3 being connected to each adjustable height seat 2.

[0042] The bottom frame 5 of the energy storage compartment 4 is welded into a rectangular grid structure by intersecting steel structures. Connecting plates 502 are welded at the steel structure nodes, and base components 3 are installed.

[0043] In the preferred embodiment, the height adjustment seat 2 is provided with a docking seat 201, and the docking seat 201 has an inner conical surface 202 in the center. The base assembly 3 includes a docking plate 301, and the docking plate 301 has an outer conical surface 303, which is engaged with the inner conical surface 202.

[0044] In a preferred embodiment, the base assembly 3 further includes a retaining ring 302, which has a retaining flange 305. The retaining ring 302 is connected to the connecting plate 502 to form an annular groove space 304. The connecting plate 301 has a flange 306, which slides in the annular groove space 304. The retaining flange 305 stops the flange 306. The side wall of the retaining ring 302 is also provided with a plurality of threaded adjusting stop screws 307 along the circumferential direction. The ends of the adjusting stop screws 307 abut against the outer wall of the flange 306.

[0045] The vertical spacing of the annular groove space 304 is slightly larger than the thickness of the flange edge 306, allowing the mating plate 301 to move freely laterally to adapt to the position of the precast pile 1 and avoid positional interference during docking.

[0046] Initially, all adjusting stop screws 307 are loosened, allowing the docking plate 301 to move freely in the annular groove space 304. When the energy storage compartment 4 is lowered, the docking plate 301 and the docking seat 201 are concentric by the cooperation of the outer conical surface 303 and the inner conical surface 202. Then, the adjusting stop screws 307 are adjusted to tighten the flange edge 306 to fix the docking plate 301.

[0047] In the preferred embodiment, the lower end of the docking seat 201 is provided with an inner cavity 203, the lower end of the inner cavity 203 is provided with a lower connecting plate 204, the upper end of the precast pile 1 is provided with a precast plate 101, the precast plate 101 is provided with a plurality of adjusting studs 102 along the circumference, the lower connecting plate 204 is provided with a plurality of bolt through holes 206 along the circumference, each adjusting stud 102 passes through the bolt through hole 206, and the adjusting stud 102 is fitted with a threaded clamping nut 103 on both sides of the lower connecting plate 204, the clamping nut 103 abuts against the lower connecting plate 204.

[0048] Because there is a certain error in the actual height of the top of the precast pile 1, in order to ensure that the energy storage chamber 4 is level when it is seated, it is necessary to adjust the actual height of each height adjustment seat 2 to be consistent. The height of the lower connecting plate 204 can be adjusted by rotating the clamping nut 103.

[0049] In the preferred embodiment, the precast slab 101 has a connecting core rod 7 in the center, the lower connecting plate 204 has a hollow hole 205 in the center, the connecting plate 301 has a conical hole 308 in the center, the connecting core rod 7 passes through the hollow hole 205 to extend into the conical hole 308, and the bottom frame 5 has a reserved hole 501 at the conical hole 308.

[0050] The height of the upper end of the connecting core rod 7 is lower than the height of the upper end face of the tapered hole 308. The precast plate 101 has multiple threaded holes for installing the adjusting stud 102 and the connecting core rod 7. Multiple flanges can be installed along the length of the connecting core rod 7.

[0051] In the preferred embodiment, the docking plate 301 is provided with multiple guide grooves 309 along the circumference, and the two ends of each guide groove 309 are respectively connected to the conical hole portion 308 and the annular groove space 304.

[0052] The guide groove 309 is in the radial direction of the docking plate 301.

[0053] In the preferred embodiment, a rotatable ring seat 8 is fitted on the outer side of the docking seat 201. The ring seat 8 is provided with a plurality of T-shaped slots 801 along the circumference. The outer side wall of the T-shaped slot 801 is provided with a closing hole 802. A locking block 9 is provided in the T-shaped slot 801. A crossbar sleeve 6 is also provided. One end of the crossbar sleeve 6 is threadedly connected to the locking block 9. A cross connecting rod 10 is also provided. The end of the cross connecting rod 10 is sleeved with the crossbar sleeve 6.

[0054] The ring seat 8 can slide or rotate on the outer wall of the docking seat 201 to adjust its height and orientation.

[0055] Before the precast pile 1 is placed, the upper ends of each precast pile 1 can be connected together by a horizontal connecting rod 10 to prevent the bottom frame 5 from contacting or colliding with a single precast pile 1 and causing the precast pile 1 to tilt.

[0056] The upper end of the closing hole 802 is provided with a narrow neck, the width of which is greater than the diameter of the end of the crossbar sleeve 6, so that the crossbar sleeve 6 can slide in. The locking block 9 is provided with a protruding ring 901. The locking block 9 can be slidably inserted into the T-shaped locking groove 801. When the crossbar sleeve 6 is rotated to tighten the locking block 9, the protruding ring 901 is locked in the closing hole 802 and can no longer move up and down.

[0057] In the preferred embodiment, the side wall of the ring seat 8 is provided with a plurality of tightening bolts 803 along the circumferential direction, and one end of the tightening bolt 803 abuts against the outer wall of the mating seat 201.

[0058] The ring seat 8 can slide upwards to expose the adjusting stud 102, facilitating the adjustment of the height of the docking seat 201. The ring seat 8 is fixed to the docking seat 201 by the tightening bolt 803 to prevent it from sliding down. After the height of the docking seat 201 is adjusted, the ring seat 8 is slid down to contact the precast slab 101, and then each horizontal connecting rod 10 is tightened.

[0059] In the preferred scheme, Design the bottom frame 5 of the energy storage compartment 4 and determine the relative positions of each connecting plate 502; With reference to the relative positions of each connecting plate 502, construct the corresponding precast piles 1 at the selected locations; Construct the height adjustment seat 2 and the base assembly 3; Install the height adjustment seat 2 on the precast slab 101; The height of the docking seat 201 is roughly adjusted to make the upper surface of each docking seat 201 have the same height. Connect the upper ends of each precast pile 1 with a horizontal connecting rod 10; Fabricate the energy storage compartment 4 and the bottom frame 5, and install each connecting plate 502 at the lower end of the bottom frame 5 according to the design position; Install each base assembly 3 onto each connecting plate 502; Hoist and install the energy storage compartment 4, align each base component 3 with the height adjustment seat 2 of each precast pile 1 and place them in place, and adapt the position of the docking plate 301 to the docking seat 201. Lock the position of docking plate 301; Fine-tune the height of each docking seat 201 to make the energy storage compartment 4 horizontal; Lock the position of the docking plate 301 and connect the docking seat 201 to the docking plate 301 with bolts.

[0060] Since the components are mainly connected by splicing and bolts, after temporary use, the energy storage compartment 4 can be removed and the height adjustment seat 2, base assembly 3 and other components can be disassembled for easy recycling and reuse.

[0061] The preferred solution includes reinforcement methods: Install the connecting core rod 7 in the center of the precast slab 101; Concrete is injected into the inner cavity 203 through the reserved hole 501 until the concrete enters the tapered hole 308 and approaches the height of the upper end of the connecting core rod 7. After the concrete in the inner cavity 203 and the conical hole 308 has solidified, metal repair agent is injected into the upper end of the conical hole 308 through the reserved hole 501. The metal repair agent flows into the annular groove space 304 through the guide channel 309 and fills the annular groove space 304 completely; Wait for the metal repair agent to solidify to complete the reinforcement work.

[0062] Due to the numerous modular components and connection points, if the energy storage compartment 4 is to be used long-term without being disassembled, to improve connection strength, after adjusting the height of the docking seat 201 and connecting the docking seat 201 to the docking plate 301, slightly loosen the crossbar sleeve 6 and the cross connecting rod 10, and slide the cross connecting rod system and the ring sleeve seat 8 down to cover the outside of the area of ​​the adjusting stud 102. Concrete can be injected into the inner cavity 203 through the specially reserved hole 501 made during the machining of the bottom frame 5 inside the energy storage compartment 4. The concrete flows into the area of ​​the adjusting stud 102 through the perforated hole 205. When the concrete reaches the conical hole 308, slow down the injection speed and stop when the concrete approaches the top of the connecting core rod 7. Due to the conical surface of the conical hole 308 and the reinforcement of the connecting core rod 7, the height adjustment seat 2 and the base assembly 3 are firmly connected as one unit when the concrete solidifies. At this time, metal repair agent is added to the top surface of the concrete in the conical hole 308 through the reserved hole 501. The metal repair agent will flow into the annular groove space 304 along with the guide groove 309. After solidification, the mating plate 301 no longer relies on the tightening force of the bolt to limit the lateral displacement, but is directly connected to the buckle 302 as a whole, with higher connection strength.

[0063] The outer edge of the buckle 302 is provided with a bolt connection lug to connect with the connecting plate 502, and the screw can be spot welded to prevent loosening. If the energy storage compartment 4 needs to be removed later, the bolt weld point here can be cut off and the bolt removed, and the bottom frame 5 can then be detached.

[0064] The above embodiments are merely preferred technical solutions of the present invention and should not be considered as limitations on the present invention. The scope of protection of the present invention should be limited to the technical solutions described in the claims, including equivalent substitutions of the technical features described in the claims. That is, equivalent substitutions and improvements within this scope are also within the scope of protection of the present invention.

Claims

1. A beamless direct-attached energy storage pre-fabricated pod foundation structure, characterized by: It includes multiple precast piles (1), each precast pile (1) is equipped with an adjustment seat (2) at the upper end, the energy storage chamber (4) is equipped with a bottom frame (5) at the lower end, the bottom frame (5) is equipped with multiple connecting plates (502) at the lower end, each connecting plate (502) is equipped with a base assembly (3) at the lower end, and each base assembly (3) is connected to each adjustment seat (2).

2. The foundation structure of the beamless direct connection type precast energy storage cabin according to claim 1, characterized in that: The height adjustment seat (2) is provided with a docking seat (201), and the docking seat (201) has an inner conical surface (202) in the center. The base assembly (3) includes a docking plate (301), and the docking plate (301) has an outer conical surface (303), which is engaged with the inner conical surface (202).

3. The foundation structure of the beamless direct connection type precast energy storage cabin according to claim 2, characterized in that: The base assembly (3) also includes a retaining ring (302), which has a retaining flange (305). The retaining ring (302) is connected to the connecting plate (502) to form an annular groove space (304). The connecting plate (301) has a flange (306), which slides in the annular groove space (304). The retaining flange (305) stops the flange (306). The side wall of the retaining ring (302) is also provided with a plurality of threaded adjusting stop screws (307) along the circumferential direction. The ends of the adjusting stop screws (307) abut against the outer wall of the flange (306).

4. The beamless direct-connection prefabricated energy storage module foundation structure according to claim 3, characterized in that: The lower end of the docking seat (201) is provided with an inner cavity (203), and the lower end of the inner cavity (203) is provided with a lower connecting plate (204). The upper end of the precast pile (1) is provided with a precast plate (101). The precast plate (101) is provided with multiple adjusting studs (102) along the circumference. The lower connecting plate (204) is provided with multiple bolt through holes (206) along the circumference. Each adjusting stud (102) passes through the bolt through hole (206). The adjusting stud (102) is fitted with a threaded clamping nut (103) on both sides of the lower connecting plate (204). The clamping nut (103) abuts against the lower connecting plate (204).

5. The beamless direct-connection prefabricated energy storage module foundation structure according to claim 4, characterized in that: The precast slab (101) has a connecting core rod (7) in the center, the lower connecting plate (204) has a hollow hole (205) in the center, the connecting plate (301) has a conical hole (308) in the center, the connecting core rod (7) passes through the hollow hole (205) and extends into the conical hole (308), and the bottom frame (5) has a reserved hole (501) at the conical hole (308).

6. The beamless direct-connection prefabricated energy storage module foundation structure according to claim 5, characterized in that: The docking plate (301) is provided with multiple guide grooves (309) along the circumference, and each guide groove (309) is connected to the conical hole (308) and the annular groove space (304) at both ends.

7. The beamless direct-connection prefabricated energy storage module foundation structure according to claim 2, characterized in that: The docking seat (201) is fitted with a rotatable ring seat (8) on the outside. The ring seat (8) is provided with multiple T-shaped slots (801) along the circumference. The outer side wall of the T-shaped slot (801) is provided with a closing hole (802). The T-shaped slot (801) is provided with a locking block (9). A crossbar sleeve (6) is also provided. One end of the crossbar sleeve (6) is threadedly connected to the locking block (9). A cross connecting rod (10) is also provided. The end of the cross connecting rod (10) is sleeved with the crossbar sleeve (6).

8. The beamless direct-connection prefabricated energy storage module foundation structure according to claim 7, characterized in that: The side wall of the ring seat (8) is provided with multiple tightening bolts (803) along the circumferential direction, and one end of the tightening bolt (803) abuts against the outer wall of the docking seat (201).

9. The construction method of the beamless direct-connection prefabricated energy storage module foundation structure according to claim 6, characterized in that: Design the bottom frame (5) of the energy storage compartment (4) and determine the relative positions of each connecting plate (502); With reference to the relative positions of each connecting plate (502), construct the corresponding precast piles (1) at the selected locations. Make the height adjustment seat (2) and the base assembly (3); Install the height adjustment seat (2) on the precast slab (101); The height of the mating seat (201) is roughly adjusted to make the upper surface of each mating seat (201) have the same height; Connect the upper ends of each precast pile (1) with a horizontal connecting rod (10); Fabricate the energy storage compartment (4) and the bottom frame (5), and install each connecting plate (502) at the lower end of the bottom frame (5) according to the design position; Install each base assembly (3) onto each connecting plate (502); The energy storage compartment (4) is hoisted and installed. Each base component (3) is aligned with the height adjustment seat (2) of each precast pile (1) and placed in place. The docking plate (301) adapts to the position of the docking seat (201). Lock the position of the docking plate (301); Fine-tune the height of each docking seat (201) to make the energy storage compartment (4) level; Lock the position of the docking plate (301) and connect the docking seat (201) to the docking plate (301) with bolts.

10. The construction method of the beamless direct-connection prefabricated energy storage module foundation structure according to claim 9, characterized in that: Including reinforcement methods: Install the connecting core rod (7) in the center of the precast slab (101); Concrete is injected into the inner cavity (203) through the reserved hole (501) until the concrete enters the conical hole (308) and approaches the upper height of the connecting core rod (7); After the concrete in the inner cavity (203) and the conical hole (308) has solidified, metal repair agent is injected into the upper end of the conical hole (308) through the reserved hole (501); The metal repair agent flows into the annular groove space (304) through the guide channel (309) and fills the annular groove space (304). Wait for the metal repair agent to solidify to complete the reinforcement work.

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