A high altitude wind turbine foundation structure

Abstract

The application discloses a high-altitude wind turbine generator set foundation structure and relates to the field of wind turbine generator set foundation construction. The foundation structure comprises a foundation bottom plate, a plurality of pile foundations are constructed at the bottom end of the foundation bottom plate, pre-buried movable parts are arranged at the top ends of the interval adjacent pile foundations, and the foundation bottom plate and the pile foundations are connected through the pre-buried movable parts. The pre-buried movable part comprises an upper movable support and a lower movable support. The lower movable support is used for being pre-buried at the top end of the pile foundation and being integrally constructed with the concrete of the pile foundation. The upper movable support is used for being pre-buried at the bottom of the foundation bottom plate and being integrally constructed with the concrete of the foundation bottom plate. An active connection structure is arranged between the lower movable support and the upper movable support. The foundation structure adopts a new construction technology of "rigid-flexible" combination, can bear the load action of the wind turbine generator set above, guarantees the safety and service life of the wind turbine generator set, solves the problems of the foundation bearing capacity and stability of the high-altitude wind turbine generator set foundation structure, and reduces the cost and the like.

Description

Technical Field

[0001] This invention relates to the field of wind turbine foundation construction, specifically a high-altitude wind turbine foundation structure. Background Technology

[0002] A wind turbine is a system that converts wind energy into electrical energy. It mainly consists of components such as a wind turbine (including blades and hub), a generator, and a tower. According to power, it can be divided into large (>100kW), medium (10-100kW), and small (<10kW); according to the direction of the main shaft, it can be divided into horizontal axis (high efficiency, mainstream) and vertical axis (no need for wind direction, lower efficiency).

[0003] High-altitude regions possess vast wind energy resources and offer significant clean energy benefits; the Tibet Autonomous Region alone boasts approximately 190 million kilowatts of wind energy reserves, ranking eighth in China. Areas above 5000 meters in altitude with wind speeds exceeding 7 meters per second account for 30% of the total area, indicating potential for large-scale development. However, constructing and installing wind turbines in high-altitude regions still faces significant challenges: the low temperatures, low pressure, and lack of oxygen, coupled with intense solar radiation and large diurnal temperature variations, negatively impact the health of construction workers and equipment performance; furthermore, the stability and safety of the foundation structure determine the overall cost and lifespan of the wind turbine in high-altitude areas. Summary of the Invention

[0004] The objective of this invention is achieved through the following technical solution:

[0005] A high-altitude wind turbine foundation structure includes a foundation base plate, with a plurality of piles constructed at the bottom end of the foundation base plate, and pre-embedded movable parts installed at the top of adjacent piles at intervals. The foundation base plate and the piles are connected by the pre-embedded movable parts.

[0006] The embedded movable component includes an upper movable support and a lower movable support;

[0007] The lower movable support is used to be pre-embedded in the top of the pile foundation and is constructed integrally with the concrete of the pile foundation.

[0008] The upper movable support is used to be pre-embedded in the bottom of the foundation slab and constructed integrally with the concrete of the foundation slab.

[0009] A movable connection structure is provided between the lower movable support and the upper movable support;

[0010] The movable connection structure includes an upper movable ball head structure and a lower movable ball head structure, which are connected by a connecting rod.

[0011] The upper movable ball head structure is connected to the upper movable support through the upper movable ball seat;

[0012] The lower movable ball head structure is connected to the lower movable support through the lower movable ball seat.

[0013] Preferably, an annular movable limiting disc is connected to the outer wall of the end of the upper movable ball seat near the pile foundation;

[0014] The lower movable support has an annular limiting groove on the outer side wall of the opening through which the connecting rod moves.

[0015] The annular movable limiting disk is disposed in the annular limiting groove and is movable and limited by the annular limiting groove.

[0016] Preferably, movable limiting structures are provided around the upper movable support and the lower movable support respectively;

[0017] The movable limiting structure includes a movable connecting head;

[0018] The bottom end of the movable connecting head is used to connect and fix with the lower movable support. The upper movable support has a movable limiting guide groove corresponding to the movable connecting head. The movable connecting head is used to pass through the movable limiting guide groove and is guided by the movable limiting guide groove.

[0019] Preferably, the four sides of the movable connecting head are respectively connected to limit sliders, and the inner walls of the movable limit guide groove of the upper movable support are respectively provided with limit grooves. The limit sliders and limit grooves are adapted to slide and limit each other.

[0020] Preferably, a movable guide shaft is connected to one end of the movable connecting head seat near the movable limiting guide groove opened on the upper movable support;

[0021] The bottom of the inner wall of the movable limiting guide groove away from the movable guide shaft is provided with a movable limiting hole;

[0022] The end of the movable guide shaft away from the movable connecting head seat is movably limited and passes through the movable limiting hole;

[0023] A deformation spring is sleeved on the movable guide shaft;

[0024] One end of the deformation spring is used to connect with the movable guide shaft, and the other end of the deformation spring is used to connect with the inner wall of the movable limiting hole.

[0025] Preferably, movable connectors are provided on both sides of the movable guide shaft connected to the movable connector head;

[0026] Each of the movable connectors includes a movable connecting rod and a movable limiting rod;

[0027] One end of the movable connecting rod is hinged to the movable connecting head seat via a hinge seat, and the other end of the movable connecting rod is hinged to the movable limiting rod via a hinge seat. The end of the movable limiting rod away from the movable connecting rod is hinged to the bottom end of the inner wall of the end of the movable limiting guide groove away from the movable guide shaft via a hinge seat.

[0028] Preferably, a plurality of tension limiting structures are provided around the pre-embedded movable component;

[0029] Each of the tension limiting structures includes a tension connecting shaft and a tension limiting shaft.

[0030] One end of the tension connecting shaft is used to be pre-embedded in the top of the pile foundation and constructed integrally with the concrete of the pile foundation. The other end of the tension connecting shaft is used to be movably limited and connected with the tension limiting shaft. The end of the tension limiting shaft away from the tension connecting shaft is rotatably pre-embedded in the bottom of the foundation plate through a bearing and constructed integrally with the concrete of the foundation plate.

[0031] Preferably, a tension guide shaft is connected to one end of the tension connecting shaft near the tension limiting shaft;

[0032] The end of the tension limiting shaft near the tension connecting shaft is provided with a tension movable guide blind hole;

[0033] The end of the tension guide shaft away from the tension connecting shaft is used for movable limiting and is inserted into the tension movable guide blind hole.

[0034] Preferably, tension limiting grooves are formed around the outer side wall of the tension limiting shaft;

[0035] Each of the tension limiting grooves is provided with a reinforcing tension connector;

[0036] The tension connecting shaft and the tension limiting shaft are connected by a reinforced tension connector for movable limiting.

[0037] Preferably, each of the reinforced tensile connectors includes a reinforcing connecting block and a movable connecting block;

[0038] One end of the reinforcing connecting block is hinged to the tension connecting shaft via a hinge seat. The other end of the reinforcing connecting block is movably disposed in the tension limiting groove and is hinged to the movable connecting block via a hinge seat. The movable connecting block is movably disposed in the tension limiting groove, and the end of the movable connecting block away from the reinforcing connecting block is hinged to the end of the tension limiting groove away from the reinforcing connecting block via a hinge seat.

[0039] An inclined hinge block is hinged to the movable connecting block via a hinge seat, and the other end of the hinge block is hinged to the tension limiting groove via a hinge seat.

[0040] The beneficial effects of this invention are: the purpose of this invention is to provide a foundation structure for high-altitude wind turbine generators, the foundation structure being:

[0041] 1. The new construction technology combining rigidity and flexibility is adopted, which can withstand the load of the wind turbine above (including dynamic load and static load), ensuring the safety and lifespan of the wind turbine.

[0042] 2. It solves the problems of foundation bearing capacity and stability of wind turbine foundation structures at high altitudes, reduces construction costs, and provides a new construction solution for the construction and installation of wind turbines at high altitudes;

[0043] 3. It can reduce the amount of construction materials, solve the problem of material shortages in high-altitude areas, and save construction time and costs;

[0044] 4. The "flexible connection" between the pile foundation and the foundation slab has been reinforced to ensure the bearing capacity and stability of the entire foundation. Attached Figure Description

[0045] Figure 1 This is a schematic diagram of the connection structure of a high-altitude wind turbine foundation structure according to the present invention;

[0046] Figure 2 This is an exploded schematic diagram of the connection structure between the foundation plate and the pile foundation of a high-altitude wind turbine foundation structure according to the present invention.

[0047] Figure 3 This is a schematic diagram of the pile foundation connection structure of a high-altitude wind turbine foundation according to the present invention;

[0048] Figure 4 This is an exploded schematic diagram of the pile foundation connection structure of a high-altitude wind turbine foundation structure according to the present invention.

[0049] Figure 5 This is a schematic diagram of the pre-embedded movable component connection structure of a high-altitude wind turbine foundation structure according to the present invention;

[0050] Figure 6 This is an exploded view of the pre-embedded movable component connection structure of a high-altitude wind turbine foundation structure according to the present invention.

[0051] Figure 7 For the present invention Figure 6 Axonometric schematic diagram;

[0052] Figure 8 This is a schematic diagram of the connection structure between the upper movable ball seat and the upper movable support of a high-altitude wind turbine foundation structure according to the present invention.

[0053] Figure 9This is an exploded schematic diagram of the connection structure between the upper movable ball seat and the upper movable support of a high-altitude wind turbine foundation structure according to the present invention.

[0054] Figure 10 This is a schematic diagram of the movable limiting structure connection structure of a high-altitude wind turbine foundation structure according to the present invention;

[0055] Figure 11 This is a schematic diagram of the tension limiting structure connection structure of a high-altitude wind turbine foundation structure according to the present invention;

[0056] Figure 12 This is an exploded view of the tension limiting structure connection structure of a high-altitude wind turbine foundation structure according to the present invention.

[0057] In the diagram, 1-foundation base plate, 2-pile foundation, 3-embedded movable component, 31-upper movable support, 32-lower movable support, 34-movable connecting head seat, 51-tension connecting shaft, 52-tension limiting shaft, 53-reinforcing connecting block, 54-movable connecting block, 55-hinge block, 331-upper movable ball head structure, 332-lower movable ball head structure, 333-upper movable ball seat, 334-annular movable limiting disc, 341-limiting slider, 342-movable guide shaft, 343-deformation spring, 344-movable connecting rod, 345-movable limiting rod. Detailed Implementation

[0058] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0059] like Figures 1 to 12 As shown, a high-altitude wind turbine foundation structure is presented. This foundation structure adopts a new construction technology that combines rigidity and flexibility, which can withstand the load of the wind turbine above, ensuring the safety and lifespan of the wind turbine. It solves the problems of foundation bearing capacity and stability of wind turbine foundation structures at high altitudes, and reduces construction costs.

[0060] Due to the difficulties in material transportation and construction at high altitudes, and the continuous movement of wind turbines during power generation, resulting in significant dynamic loads, this application employs a novel "rigid-flexible" construction technique for the wind turbine foundation structure to ensure the safety and lifespan of the wind turbines. The foundation structure includes a foundation slab 1, on which a wind turbine platform is constructed for mounting and fixing the wind turbines. Several piles 2 are constructed at the bottom of the foundation slab 1, with pre-embedded movable components 3 at the top of adjacent (other) piles 2. The foundation slab 1 and piles 2 are connected via these pre-embedded movable components 3. According to the design, during construction, pre-embedded movable components 3 are installed at the top of adjacent (other) piles 2, representing a "rigid-flexible" construction technique: one pile 2 is rigidly connected to the foundation slab 1; another pile 2 is flexibly connected to the foundation slab 1 via pre-embedded movable components 3. This supports and bears the loads (including dynamic and static loads) on the upper part of the foundation structure.

[0061] It should be noted that the “rigid connection” between the pile foundation 2 and the foundation slab 1 mentioned in this application refers to the existing rigid construction connection method between the pile foundation 2 and the foundation slab 1. Therefore, the following focuses on the “flexible connection” between the pile foundation 2 and the foundation slab 1.

[0062] Furthermore, such as Figure 5 , Figure 6 , Figure 7 As shown, the embedded movable component 3 used for the "flexible" connection between the pile foundation 2 and the foundation slab 1 includes an upper movable support 31 and a lower movable support 32. The lower movable support 32 is embedded in the top of the pile foundation 2 and is constructed integrally with the concrete of the pile foundation 2. The upper movable support 31 is embedded in the bottom of the foundation slab 1 and is constructed integrally with the concrete of the foundation slab 1. A movable connection structure is provided between the lower movable support 32 and the upper movable support 31, which "flexibly connects" the upper movable support 31 and the lower movable support 32. The movable connection structure includes an upper movable ball head structure 331 and a lower movable ball head structure 332, which are connected by a connecting rod. The upper movable ball head structure 331 is connected to the upper movable support 31 through an upper movable ball seat 333, and the lower movable ball head structure 332 is connected to the lower movable support through a lower movable ball seat. The pile foundation 2 and the foundation slab 1 are "flexibly connected" through the pre-embedded movable part 3, so as to adapt to and attenuate the "dynamic load" on the foundation slab 1, avoid rigid failure, and thus ensure the integrity and stability of the connection between the pile foundation 2 and the foundation slab 1, ensure the bearing capacity of the entire foundation structure, and increase its safety and service life.

[0063] Furthermore, such as Figure 8 , Figure 9As shown, the outer wall of the upper movable ball seat 333 near the pile foundation 2 is connected to an annular movable limiting disc 334; the outer wall of the top of the opening through which the connecting rod moves is provided with an annular limiting groove; the annular movable limiting disc 334 is set in the annular limiting groove and is movable and limited by the annular limiting groove. During the construction of the top part of the pile foundation 2, the lower movable support 32 is pre-embedded in the designed position at the top of the pile foundation 2 and tied together with the skeleton of the pile foundation 2; at the same time, a "ring-shaped limiting groove" is tied with the designed steel bars at the top of the pile foundation 2, and the annular limiting groove is filled with foam as a support limiting template; a certain protective layer is left between the foam and the steel bar skeleton of the annular limiting groove with spacers; then, the concrete of the pile foundation 2 is poured, and the lower movable support 32 is poured together with the pile foundation 2. Moreover, the structure of the annular limiting groove is also constructed integrally with the pile foundation 2, thereby ensuring the integrity and limiting the connection of the annular movable limiting disc 334. The "embedded movable component 3" in this design draws on the structural principle of bridge rubber bearings to adapt to and attenuate the load on the upper part of the foundation plate 1, thereby protecting the entire foundation and the superstructure.

[0064] Furthermore, such as Figure 10 As shown, movable limiting structures are respectively provided around the upper movable support 31 and the lower movable support 32. Each movable limiting structure includes a movable connecting head 34. The bottom end of the movable connecting head 34 is used to connect and fix to the lower movable support 32. The upper movable support 31 has a movable limiting guide groove corresponding to the movable connecting head 34. The movable connecting head 34 is used to pass through the movable limiting guide groove and is guided by the movable limiting guide groove. Furthermore, limiting sliders 341 are respectively connected to the four side walls of the movable connecting head 34. Limiting grooves are respectively formed around the inner wall of the movable limiting guide groove in the upper movable support 31. The limiting sliders 341 and the limiting grooves are slidably matched and limited. The movable connecting head 34 is flexibly limited by being positioned in the movable limiting guide groove in the upper movable support 31.

[0065] Furthermore, a movable guide shaft 342 is connected to one end of the movable connecting head 34 near the movable limiting guide groove of the upper movable support 31; a movable limiting hole is provided at the bottom of the inner wall of the movable limiting guide groove away from the movable guide shaft 342; the movable guide shaft 342 is movably limited and passes through the movable limiting hole at the end away from the movable connecting head 34; a deformation spring 343 is sleeved on the movable guide shaft 342; one end of the deformation spring 343 is used to connect to the movable guide shaft 342, and the other end of the deformation spring 343 is used to connect to the inner wall of the movable limiting hole. The movable guide shaft 342 is elastically and movably connected to the movable limiting hole in the movable limiting guide groove of the upper movable support 31, thus providing flexible movable guiding and limiting.

[0066] Furthermore, movable connectors are provided on both sides of the movable guide shaft 342 connected to the movable connector head 34. Each movable connector includes a movable connecting rod 344 and a movable limiting rod 345. One end of the movable connecting rod 344 is hinged to the movable connector head 34 via a hinge seat, and the other end of the movable connecting rod 344 is hinged to the movable limiting rod 345 via a hinge seat. The end of the movable limiting rod 345 away from the movable connecting rod 344 is hinged to the bottom of the inner wall of the end of the movable limiting guide groove away from the movable guide shaft 342 via a hinge seat. Each movable connector on the movable connector head 34 is flexibly and dynamically limited within the movable limiting guide groove, effectively further flexibly limiting the connection between the upper movable support 31 and the lower movable support 32.

[0067] The pre-embedded movable component 3 is used to "flexibly connect" the pile foundation 2 to the foundation slab 1; and, in the adjacent pile foundation 2 and foundation slab 1 connected by the pre-embedded movable component 3, a rigid connection method is adopted to ensure the stress and stability of the entire foundation structure. The basic structure of this design employs a "rigid-flexible combination" construction technique. Even when the upper part of the foundation slab 1 bears a large dynamic load, the pre-embedded movable component 3, which flexibly connects the pile foundation 2 and the foundation slab 1, ensures that the movable connecting head 34 is elastically and flexibly positioned within the movable limiting guide groove of the upper movable support 31. The limited movement between the movable connecting head 34 and the upper movable support 31 prevents significant displacement of the foundation slab 1 and the wind turbine units installed above it under dynamic loads; their movement is limited to the designed allowable range. This pre-embedded movable component 3 allows for a flexible connection between the pile foundation 2 and the foundation slab 1 at the designed location. Furthermore, the movable limiting structure allows for the adaptation and attenuation of the load on the upper part of the foundation slab 1 and the wind turbine units installed above it under dynamic loads, preventing structural damage caused by rigid connections.

[0068] Furthermore, such as Figure 11 , Figure 12As shown, several tension limiting structures are provided around the pre-embedded movable component 3. Each tension limiting structure includes a tension connecting shaft 51 and a tension limiting shaft 52. One end of the tension connecting shaft 51 is pre-embedded in the top of the pile foundation 2 and is constructed integrally with the concrete of the pile foundation 2. The other end of the tension connecting shaft 51 is used for a movable limiting connection with the tension limiting shaft 52. The end of the tension limiting shaft 52 away from the tension connecting shaft 51 is rotatably pre-embedded in the bottom of the foundation base plate 1 through a bearing and is constructed integrally with the concrete of the foundation base plate. The reason for providing several tension limiting structures around the pre-embedded movable component 3 is that these tension limiting structures can further flexibly and movablely limit the connection between the foundation base plate 1 and the pile foundation 2, ensuring the quality of the connection position. These tension limiting structures are used to adapt to and attenuate the vertical load of the foundation base plate 1 and the wind turbine unit installed on the foundation base plate 1.

[0069] The following is a detailed explanation of the tension limiting structure:

[0070] In this tensile limiting structure design, a tensile guide shaft is connected to one end of the tensile connecting shaft 51 near the tensile limiting shaft 52; a tensile movable guide blind hole is opened at one end of the tensile limiting shaft 52 near the tensile connecting shaft 51; the end of the tensile guide shaft away from the tensile connecting shaft 51 is used for movable limiting and passes through the tensile movable guide blind hole (opened in the tensile limiting shaft 52). Since the tensile guide shaft of the tensile connecting shaft 51 is vertically movable and limited in the tensile movable guide blind hole opened in the tensile limiting shaft 52, the tensile connecting shaft 51 and the tensile limiting shaft 52 can be relatively "vertically movable" (within the vertically movable range allowed by the design); and the tensile limiting shaft 52 is rotatably embedded in the bottom of the foundation plate 1 through bearings and is constructed integrally with the concrete of the foundation plate, so that the tensile limiting shaft 52 can be "rotated and movable" relative to the foundation plate 1, which can adapt to the dynamic load of the foundation plate 1 and the wind turbine installed on the foundation plate 1.

[0071] Tensile limiting grooves are formed around the outer perimeter of the outer wall of the tension limiting shaft 52; reinforcing tension connectors are respectively installed in the tension limiting grooves; the tension connecting shaft 51 and the tension limiting shaft 52 are connected and limited by the reinforcing tension connectors. The reinforcing tension connectors in this design are used to be installed in the tension limiting grooves, which provide hidden limiting protection. Furthermore, since the tension connecting shaft 51 and the tension limiting shaft 52 can only move within a small range (vertical direction) due to design requirements, the tension limiting grooves are used to hide and limit the reinforcing tension connectors.

[0072] The reinforced tension connectors of this design all include a reinforcing connecting block 53 and a movable connecting block 54. One end of the reinforcing connecting block 53 is hinged to the tension connecting shaft 51 via a hinge seat. The other end of the reinforcing connecting block 53 is movably disposed in the tension limiting groove and is hinged to the movable connecting block 54 via a hinge seat. The movable connecting block 54 is movably disposed in the tension limiting groove, and the end of the movable connecting block 54 away from the reinforcing connecting block 53 is hinged to the end of the tension limiting groove away from the reinforcing connecting block 53 via a hinge seat. An inclined hinge block 55 is hinged to the movable connecting block 54 via a hinge seat. The other end of the hinge block 55 is hinged to the tension connecting shaft 51 via a hinge seat. The limiting groove is hinged. It should be noted that, in order to adapt to the loads on the foundation plate 1 and the wind turbine installed on the foundation plate 1, the end of the hinge block 55 away from the movable connecting block 54 is hinged to the outer ring of the bearing through a hinge seat. The inner ring of the bearing is connected to the end of the tension limiting shaft 52 near the tension connecting shaft 51, and the outer ring of the bearing can rotate relative to the tension limiting groove. In this way, the hinge block 55 is "rotatably hinged" relative to the tension limiting shaft 52, so as to synchronously adapt to the loads on the foundation plate 1 and the wind turbine installed on the foundation plate 1, and avoid "stress failure" caused by rigid connection.

[0073] The pile foundation 2 is "movably reinforcedly connected" to the foundation plate 1 through the reinforced tension connector; when the vertical force on the foundation plate 1 and the wind turbine installed above the foundation plate 1 acts on the foundation plate 1 and causes the foundation plate 1 to move "relatively downward", the tension limiting shaft 52 moves "small range" downward relative to the tension connecting shaft 51 until the bottom end of the tension limiting shaft 52 abuts against the top end of the tension connecting shaft 51, thereby supporting and limiting the "downward displacement" of the foundation plate 1 and the wind turbine installed above the foundation plate 1.

[0074] Both the reinforced tension connector and the movable limiting structure in this design are vertically movable, and the movable limiting structure is horizontally movable within the design limits. The tension connecting shaft 51 of the reinforced tension connector and the base plate 1 are rotatably mounted via bearings, and the tension connecting shaft 51 and the tension limiting shaft 52 are also vertically movable within a small range. Therefore, when the reinforced tension connector and the movable limiting structure are in motion, their horizontal movements do not interfere with each other, while in the vertical direction, they work together to provide movable limiting, guiding, and supporting functions.

[0075] It should be noted that the gap between the (root) pile 2 and the foundation plate 1 is filled with flexible resin to protect the embedded movable part 3.

Claims

1. A foundation structure for a high-altitude wind turbine, comprising a foundation base plate, characterized in that, The foundation slab has several piles at its bottom, and pre-embedded movable parts are installed at the top of adjacent piles at intervals. The foundation slab and the piles are connected by the pre-embedded movable parts. The embedded movable component includes an upper movable support and a lower movable support; The lower movable support is used to be pre-embedded in the top of the pile foundation and is constructed integrally with the concrete of the pile foundation. The upper movable support is used to be pre-embedded in the bottom of the foundation slab and constructed integrally with the concrete of the foundation slab. A movable connection structure is provided between the lower movable support and the upper movable support; The movable connection structure includes an upper movable ball head structure and a lower movable ball head structure, which are connected by a connecting rod. The upper movable ball head structure is connected to the upper movable support through the upper movable ball seat; The lower movable ball head structure is connected to the lower movable support through the lower movable ball seat; Several tension limiting structures are provided around the pre-embedded movable component. Each of the tension limiting structures includes a tension connecting shaft and a tension limiting shaft. One end of the tension connecting shaft is used to be pre-embedded in the top of the pile foundation and constructed integrally with the concrete of the pile foundation. The other end of the tension connecting shaft is used to be movably limited and connected with the tension limiting shaft. The end of the tension limiting shaft away from the tension connecting shaft is rotatably pre-embedded in the bottom of the foundation plate through a bearing and constructed integrally with the concrete of the foundation plate. The end of the tension connecting shaft near the tension limiting shaft is connected to a tension guide shaft. The end of the tension limiting shaft near the tension connecting shaft is provided with a tension movable guide blind hole; The end of the tension guide shaft away from the tension connecting shaft is used for movable limiting and is inserted into the tension movable guide blind hole; Tension limiting grooves are respectively opened around the outer side wall of the tension limiting shaft; Each of the tension limiting grooves is provided with a reinforcing tension connector; The tension connecting shaft and the tension limiting shaft are connected by a reinforced tension connector for movable limiting. Each of the reinforced tensile connectors includes a reinforcing connecting block and a movable connecting block; One end of the reinforcing connecting block is hinged to the tension connecting shaft via a hinge seat. The other end of the reinforcing connecting block is movably disposed in the tension limiting groove and is hinged to the movable connecting block via a hinge seat. The movable connecting block is movably disposed in the tension limiting groove, and the end of the movable connecting block away from the reinforcing connecting block is hinged to the end of the tension limiting groove away from the reinforcing connecting block via a hinge seat. An inclined hinge block is hinged to the movable connecting block via a hinge seat, and the other end of the hinge block is hinged to the tension limiting groove via a hinge seat.

2. The foundation structure for a high-altitude wind turbine as described in claim 1, characterized in that, An annular movable limiting disc is connected to the outer wall of the end of the upper movable ball seat near the pile foundation; The lower movable support has an annular limiting groove on the outer side wall of the opening through which the connecting rod moves. The annular movable limiting disk is disposed in the annular limiting groove and is movable and limited by the annular limiting groove.

3. The foundation structure for a high-altitude wind turbine as described in claim 1, characterized in that, The upper movable support and the lower movable support are respectively provided with movable limiting structures around their perimeter; The movable limiting structure includes a movable connecting head; The bottom end of the movable connecting head is used to connect and fix with the lower movable support. The upper movable support has a movable limiting guide groove corresponding to the movable connecting head. The movable connecting head is used to pass through the movable limiting guide groove and is guided by the movable limiting guide groove.

4. The foundation structure for a high-altitude wind turbine as described in claim 3, characterized in that, The four sides of the movable connecting head are respectively connected to limit sliders, and the inner walls of the movable limit guide groove of the upper movable support are respectively provided with limit grooves. The limit sliders and limit grooves are adapted to slide and limit each other.

5. The foundation structure for a high-altitude wind turbine as described in claim 4, characterized in that, The movable connecting head is connected to a movable guide shaft at one end near the movable limit guide groove of the upper movable support. The bottom of the inner wall of the movable limiting guide groove away from the movable guide shaft is provided with a movable limiting hole; The end of the movable guide shaft away from the movable connecting head seat is movably limited and passes through the movable limiting hole; A deformation spring is sleeved on the movable guide shaft; One end of the deformation spring is used to connect with the movable guide shaft, and the other end of the deformation spring is used to connect with the inner wall of the movable limiting hole.

6. The foundation structure for a high-altitude wind turbine as described in claim 5, characterized in that, Movable connectors are provided on both sides of the movable guide shaft connected to the movable connector head; Each of the movable connectors includes a movable connecting rod and a movable limiting rod; One end of the movable connecting rod is hinged to the movable connecting head seat via a hinge seat, and the other end of the movable connecting rod is hinged to the movable limiting rod via a hinge seat. The end of the movable limiting rod away from the movable connecting rod is hinged to the bottom end of the inner wall of the end of the movable limiting guide groove away from the movable guide shaft via a hinge seat.

Images