A new wind power mixed tower prefabricated tower drum structure

Abstract

This utility model provides a novel prefabricated tower structure for wind power hybrid towers, including prefabricated panels. Four prefabricated panels are connected in a ring shape by a connecting mechanism. Symmetrical fixing sleeves are installed at the center of the inner sides of the four prefabricated panels. One fixing sleeve has a slot at the center of one end, and the inner wall of the slot has multiple locking grooves. Multiple ring-shaped limiting blocks are installed on the inner side of one end of the other fixing sleeve. The limiting blocks slide elastically with the inner side of the fixing sleeve through a telescopic spring. A top rod is slidably connected inside the fixing sleeve. One end of the top rod extends to the top side of the multiple limiting blocks, and the bottom of the top rod has a hemispherical structure. The other end of the top rod extends into the slot at the end of the other fixing sleeve. By installing symmetrical fixing sleeves, the top rod can be driven to slide down when two prefabricated panels are spliced, so that the multiple limiting blocks can be inserted into the locking grooves for limiting, thereby enabling the spliced ​​prefabricated panels to self-lock. This method is convenient and efficient to install.

Description

Technical Field

[0001] This utility model belongs to the field of wind power tower installation technology, specifically relating to a novel prefabricated tower structure for wind power hybrid towers. Background Technology

[0002] As the global energy structure accelerates its transformation towards cleaner and lower-carbon energy, wind power, as one of the core areas of renewable energy utilization, has seen advancements in technology. Currently, wind turbine towers are mainly divided into three categories: steel towers, concrete towers, and steel-concrete hybrid towers (referred to as "hybrid towers"). While steel towers offer advantages such as short construction cycles and flexible forming, in ultra-high tower applications, they require large quantities of steel, resulting in high costs and extensive high-altitude welding work. Furthermore, they are prone to fatigue damage after prolonged exposure to wind loads. All-concrete towers, while possessing high rigidity and durability, are excessively heavy, making transportation and hoisting extremely difficult, especially limiting their applicability in complex terrains such as mountains and hills. Therefore, steel-concrete hybrid towers, with their combined advantages of high rigidity in the lower concrete section and lightweight upper steel section, have become the mainstream technology for ultra-high towers. The existing precast tower sections of mixed towers mostly adopt the construction mode of segmented prefabrication and on-site splicing. When splicing precast sections, traditional flange connections require a large number of high-strength bolts for fastening. The high-altitude operation process is cumbersome, resulting in low installation efficiency (single-segment splicing usually takes more than 4 hours) and the bolted connection parts are susceptible to environmental corrosion, leading to high maintenance costs in the later stage. Therefore, developing a new type of prefabricated tower structure for wind power hybrid towers that is convenient to transport, efficient to install, stable in connection, and highly weather-resistant has become a key technological requirement for breaking through the current bottlenecks in hybrid tower technology and promoting the large-scale development of the wind power industry. Utility Model Content

[0003] The purpose of this utility model is to provide a novel prefabricated tower structure for wind power hybrid towers in order to solve the above problems. By installing symmetrical fixing sleeves, the top rod can be driven to slide down when two prefabricated panels are spliced, and multiple limit blocks can be inserted into the locking groove for limitation, thereby enabling the spliced ​​prefabricated panels to self-lock. This makes installation convenient and efficient.

[0004] This utility model achieves the above objectives through the following technical solutions: A novel prefabricated tower structure for wind power hybrid towers includes prefabricated panels. Four prefabricated panels are connected in a ring shape by a connecting mechanism. Each of the four prefabricated panels has a locking mechanism installed inside. Each locking mechanism includes a fixing sleeve. Symmetrical fixing sleeves are installed at the center of the inner sides of the four prefabricated panels. The opposite ends of two fixing sleeves extend to the outer side of the prefabricated panels. One fixing sleeve has a slot at the center of one end. The inner wall of the slot has multiple locking grooves. Multiple ring-shaped limiting blocks are installed on the inner side of one end of the other fixing sleeve. The limiting blocks slide elastically with the inner side of the fixing sleeve via a telescopic spring. A top rod is slidably connected inside the fixing sleeve. One end of the top rod extends to the top side of the multiple limiting blocks. The bottom of the top rod has a hemispherical structure. The other end of the top rod extends into the slot at the end of the other fixing sleeve.

[0005] As a preferred embodiment, the two symmetrical fixing sleeves are cylindrical "T" shaped structures, and the opposite edges of the two fixing sleeves are detachably connected to the precast plate by multiple fastening bolts.

[0006] As a preferred embodiment, one of the fixing sleeves has a hexagonal groove on the inner side of the other end, and the other end of the fixing sleeve is slidably connected to the inside of the groove.

[0007] As a preferred embodiment, both ends of the plurality of limiting blocks are hemispherical structures, the plurality of limiting blocks are cylindrical structures, and the edge of one end of the slot is an arc-shaped structure.

[0008] As a preferred embodiment, the ends of the plurality of limiting blocks extend to the outside of the fixing sleeve, and the length of one end of the limiting block extending to the outside of the fixing sleeve is half the diameter of the limiting block.

[0009] As a preferred embodiment, the bottom of the fixing sleeve has a "T" shaped structure, and the length of the bottom of the fixing sleeve is less than the depth of the slot.

[0010] As a preferred embodiment, a rubber ring is installed at the bottom edge of one of the fixing sleeves, and the rubber ring abuts against the top side of the other fixing sleeve.

[0011] As a preferred embodiment, a return spring is connected between the bottom of the push rod and the inner side of the bottom of the fixed sleeve, and the push rod is elastically connected to the inside of the fixed sleeve through the return spring.

[0012] As a preferred embodiment, the connecting mechanism includes connecting grooves, and multiple connecting grooves are provided on the inner sides of both ends of the multiple precast slabs. The multiple precast slabs are detachably connected end to end through multiple connecting grooves and multiple connecting bolts.

[0013] As a preferred embodiment, the top sides of both ends of the plurality of precast slabs are respectively provided with positioning grooves, and the bottom sides of both ends of the plurality of precast slabs are respectively provided with positioning blocks.

[0014] Compared with the prior art, the present invention has the following beneficial effects: This utility model, through the cooperation of a connecting mechanism, facilitates the ring-shaped connection of multiple precast slabs. By stacking and connecting multiple ring-shaped precast slabs, a tower structure is formed, which facilitates the installation of wind power equipment. Installation is convenient, efficient, and also facilitates transportation and subsequent corrosion protection. When multiple ring-shaped precast slabs are stacked and connected, symmetrical fixing sleeves are installed, allowing the bottom of the fixing sleeve at the bottom of one precast slab to align with the slot of the fixing sleeve at the top of another precast slab, providing positioning and ensuring quick and stable connection between the two precast slabs. When the bottom of the fixing sleeve is inserted into the slot at the top of another fixing sleeve, the push rod is abutted and slides downwards a certain position, causing the bottom of the push rod to abut against the ends of multiple limiting blocks. These limiting blocks, freed from the elastic force of the telescopic springs, insert into multiple locking grooves, limiting the fixing sleeves and slots. This allows for self-locking between the two precast slabs, making operation more convenient. Similarly, when installing multiple stacked precast slabs, sequential self-locking is achieved, improving installation efficiency. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the connection structure between the connecting bolts and the precast slab of this utility model; Figure 3 This is a schematic diagram of the connection structure between the fixing sleeve and the precast slab of this utility model; Figure 4 This is a schematic diagram of the connection structure of the two fixing sleeves of this utility model; Figure 5 This is a schematic diagram of the connection structure between the pressure rod and the two fixed sleeves of this utility model. Figure 6 This is a schematic diagram of the connection structure between the limiting block and the fixing sleeve of this utility model; Figure 7 This is a schematic diagram of the connection structure of the lock groove, slot, and fixing sleeve of this utility model.

[0016] The figure shows: 1. Precast slab; 2. Connecting mechanism; 201. Connecting bolt; 202. Connecting groove; 203. Positioning groove; 204. Positioning block; 3. Engaging mechanism; 301. Fixing sleeve; 302. Fastening bolt; 303. Top rod; 304. Return spring; 305. Limiting block; 306. Telescopic spring; 307. Locking groove; 308. Slot; 309. Card slot; 310. Rubber ring. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figures 1 to 7 As shown, this utility model embodiment provides a novel prefabricated tower structure for wind power hybrid towers, including prefabricated plates 1. Four prefabricated plates 1 are connected in a circular ring by a connecting mechanism 2. A locking mechanism 3 is installed inside each of the four prefabricated plates 1. The locking mechanism 3 includes a fixing sleeve 301. Symmetrical fixing sleeves 301 are installed at the center of the interior of each of the four prefabricated plates 1. The opposite ends of two fixing sleeves 301 extend to the outer side of the prefabricated plate 1. A slot 308 is provided at the center of one end of one fixing sleeve 301. The inner wall of the slot 308 is provided with multiple locking grooves 307. Multiple ring-shaped limiting blocks 305 are installed on the inner side of one end of another fixing sleeve 301. The limiting blocks 305 slide elastically against the inner side of the fixing sleeve 301 via a telescopic spring 306. A top rod 303 is slidably connected inside the fixing sleeve 301. One end of the top rod 303 extends to the top side of the multiple limiting blocks 305, and the bottom of the top rod 303 has a hemispherical structure. The other end of the top rod 303 extends into the slot 308 at the end of the other fixing sleeve 301. In practical use, multiple arc-shaped precast slabs 1 are first connected end-to-end through the connection groove 202 and the connection bolt 201, forming a ring structure. The multiple ring-shaped precast slabs 1 are stacked and spliced ​​to form a tower structure, facilitating the installation of wind power equipment.

[0019] Specifically, in this embodiment, when splicing precast slabs 1 in layers, the lowest annular precast slab 1 is detachably and securely installed to the ground base. Then, a crane is used to install the annular precast slab 1 on top of the first precast slab 1 for splicing. During splicing, the bottom of the fixing sleeve 301 at the bottom of the precast slab 1 aligns with the slot 308 of the fixing sleeve 301 at the top of the first precast slab 1, which serves as a positioning function, allowing the two precast slabs 1 to quickly and stably align. When the bottom of the fixing sleeve 301 is inserted into the slot 308 at the top of the other fixing sleeve 301, the top rod 303 is abutted and slides down a certain position, causing the bottom of the top rod 303 to abut against the ends of multiple limiting blocks 305. The multiple limiting blocks 305 are freed from the elastic force of the telescopic spring 306 and inserted into multiple locking grooves 307, limiting the fixing sleeve 301 and the slot 308, thereby enabling self-locking between the two precast slabs 1, making the operation more convenient. By analogy, when installing multiple precast slabs 1 in layers, sequential self-locking is achieved, improving installation efficiency.

[0020] Please see Figures 1 to 7As shown, the two symmetrical fixing sleeves 301 are cylindrical "T"-shaped structures. The opposite edges of the two fixing sleeves 301 are detachably connected to the precast slab 1 via multiple fastening bolts 302, facilitating easy installation and removal of the fixing sleeves 301 and the precast slab 1, making operation and maintenance convenient. One fixing sleeve 301 has a hexagonal groove 309 on its inner side at the other end, and the other end of the other fixing sleeve 301 is slidably connected to the groove 309. The groove 309 facilitates a stable connection between the opposite ends of the two fixing sleeves 301 after installation on both sides of the precast slab 1.

[0021] Please see Figures 1 to 7 As shown, multiple limiting blocks 305 have hemispherical structures at both ends and cylindrical structures. The edge of one end of the slot 308 is arc-shaped. The hemispherical mechanism design facilitates the smooth sliding of the push rod 303 against the limiting blocks 305 and into the locking groove 307. The ends of the multiple limiting blocks 305 extend to the outside of the fixing sleeve 301. The length of one end of the limiting block 305 extending to the outside of the fixing sleeve 301 is half the diameter of the limiting block 305. When the fixing sleeve 301 mates with the slot 308, the limiting blocks 305 are pushed away from the telescopic spring 306 and retract, allowing the fixing sleeve 301 to smoothly insert into the slot 308. After finally being inserted into place, the limiting blocks 305 can be inserted into one end of the locking groove 307 under the pressure of the telescopic spring 306, playing a positioning role. During subsequent disassembly, by pulling the fixing sleeve 301 with a certain force, the limiting blocks 305 will be pushed away and retracted, facilitating disassembly.

[0022] To further optimize this embodiment, the bottom of the fixing sleeve 301 has a "T"-shaped structure, and the length of the bottom of the fixing sleeve 301 is less than the internal depth of the slot 308, which facilitates the smooth insertion of the bottom of the fixing sleeve 301 into the inner side of the slot 308 at the top of the other fixing sleeve 301. A rubber ring 310 is installed at the bottom edge of one of the fixing sleeves 301, and the rubber ring 310 abuts against the top side of the other fixing sleeve 301. The installation of the rubber ring 310 facilitates the connection between the two fixing sleeves 301 when they are inserted into the slot 308 after the two prefabricated plates 1 are stacked and connected. The rubber ring 310 is elastic, which makes the two fixing sleeves 301 tightly connected.

[0023] Please see Figures 1 to 7 As shown, a return spring 304 is connected between the bottom of the push rod 303 and the inner side of the bottom of the fixed sleeve 301. The push rod 303 is elastically connected to the inside of the fixed sleeve 301 through the return spring 304. With the installation of the return spring 304, the push rod 303 can be reset and separated from the limit block 305 in time when there is no external force, so that the limit block 305 can slide freely.

[0024] Please see Figures 1 to 7As shown, the connecting mechanism 2 includes connecting grooves 202. Multiple precast slabs 1 have multiple connecting grooves 202 on their inner sides at both ends. The multiple precast slabs 1 are detachably connected end-to-end through the multiple connecting grooves 202 and multiple connecting bolts 201. The connecting grooves 202 facilitate the insertion of the connecting bolts 201, enabling a detachable connection between the multiple precast slabs 1 arranged in a ring. Positioning grooves 203 are provided on the top sides of both ends of the multiple precast slabs 1, and positioning blocks 204 are provided on the bottom sides of both ends of the multiple precast slabs 1. Through the cooperation of the positioning grooves 203 and the positioning blocks 204, the positioning blocks 204 engage with the positioning grooves 203 after the multiple precast slabs 1 are stacked and spliced, preventing the precast slabs 1 from shifting and providing positioning and protection.

[0025] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0026] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A new type of wind power mixed tower prefabricated tower drum structure, comprising a prefabricated plate (1), characterized in that: The four precast slabs (1) are connected in a circular ring by a connecting mechanism (2). A locking mechanism (3) is installed inside each of the four precast slabs (1). The locking mechanism (3) includes a fixing sleeve (301). Symmetrical fixing sleeves (301) are installed at the center of the interior of each of the four precast slabs (1). The opposite ends of two fixing sleeves (301) extend to the outside of the precast slab (1). A slot (308) is provided at the center of one end of one of the fixing sleeves (301). Multiple locking grooves (308) are provided on the inner wall of the slot (308). 07), a plurality of ring-shaped limiting blocks (305) are installed on the inner side of one end of another fixed sleeve (301). The limiting blocks (305) slide elastically with the inner side of the fixed sleeve (301) through a telescopic spring (306). A push rod (303) is slidably connected inside the fixed sleeve (301). One end of the push rod (303) extends to the top side of the plurality of limiting blocks (305). The bottom of the push rod (303) is a hemispherical structure. The other end of the push rod (303) extends into the slot (308) at the end of another fixed sleeve (301).

2. The novel prefabricated tower structure for wind power hybrid towers according to claim 1, characterized in that: The two symmetrical fixing sleeves (301) are cylindrical "T" shaped structures. The opposite edges of the two fixing sleeves (301) are detachably connected to the precast plate (1) by multiple fastening bolts (302).

3. The new wind power hybrid tower precast tower structure according to claim 1, characterized in that: One of the fixing sleeves (301) has a hexagonal slot (309) on the inner side of the other end, and the other end of the fixing sleeve (301) is slidably connected to the inside of the slot (309).

4. The new wind power hybrid tower precast tower structure according to claim 1, characterized in that: Both ends of the plurality of limiting blocks (305) are hemispherical structures, the plurality of limiting blocks (305) are cylindrical structures, and the edge of one end of the slot (308) is an arc-shaped structure.

5. The new wind power hybrid tower precast tower structure according to claim 1, characterized in that: The ends of the plurality of limiting blocks (305) extend to the outside of the fixing sleeve (301), and the length of one end of the limiting block (305) extending to the outside of the fixing sleeve (301) is half the diameter of the limiting block (305).

6. The new wind power hybrid tower precast tower structure according to claim 1, characterized in that: The bottom of the fixing sleeve (301) has a "T" shaped structure, and the length of the bottom of the fixing sleeve (301) is less than the internal depth of the slot (308).

7. The new wind power hybrid tower precast tower structure according to claim 1, characterized in that: A rubber ring (310) is installed at the bottom edge of one of the fixing sleeves (301), and the rubber ring (310) abuts against the top side of the other fixing sleeve (301).

8. The new wind power hybrid tower precast tower structure according to claim 1, characterized in that: A return spring (304) is connected between the bottom of the top rod (303) and the inner side of the bottom of the fixed sleeve (301). The top rod (303) is elastically connected to the inside of the fixed sleeve (301) through the return spring (304).

9. The new wind power hybrid tower precast tower structure according to claim 1, characterized in that: The connecting mechanism (2) includes a connecting groove (202). Multiple connecting grooves (202) are provided on the inner sides of both ends of the multiple precast slabs (1). The multiple precast slabs (1) are detachably connected end to end through multiple connecting grooves (202) and multiple connecting bolts (201).

10. The new wind power hybrid tower precast tower structure according to claim 1, characterized in that: The top sides of both ends of the precast slabs (1) are provided with positioning grooves (203), and the bottom sides of both ends of the precast slabs (1) are provided with positioning blocks (204).

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