A wind power mixed tower prefabricated tower drum section connecting structure

Abstract

The utility model relates to new energy equipment manufacturing field discloses a kind of wind power mixed tower prefabricated tower section connection structure, including embedded plate one, the inner side lateral wall of embedded plate one is fixedly connected with fixed block, the inner wall of embedded plate one is connected with bolt, the inner side lateral wall of bolt is rotatably connected with circular ring, the outer wall of bolt is rotatably connected with clamping block, the right side lateral wall of embedded plate one is contacted with embedded plate two, the inner wall of embedded plate one is inserted with connecting plate, the inner side lateral wall of embedded plate two is fixedly connected with rectangular block, the inner wall of embedded plate two is connected with fastening bolt with screw thread.The utility model in the middle, when two groups of slice alignment are inserted into connecting plate, rotate fastening bolt and drive trapezoidal block extrude sliding block, make clamping block and sliding block clamping complete preliminary fixation, again tighten bolt and let bolt circular ring limit connecting plate, realize two groups of embedded plate fixation, further enhance slice connection.

Description

Technical Field

[0001] This utility model relates to the field of new energy equipment manufacturing, and in particular to a prefabricated tower section connection structure for wind power hybrid towers. Background Technology

[0002] The precast tower section connection structure for hybrid wind turbine towers is a specialized connection device used between precast tower sections (typically combining concrete and other materials). Its core components include embedded plates, connecting plates, locking blocks, sliding blocks, and fastening bolts. Initially, the tower sections are fixed by the locking blocks and sliding blocks. Then, the connecting plates reinforce the connection between the two sets of embedded plates, improving stability. Simultaneously, after cement pouring, the embedded plates interlock with the concrete of the tower section, increasing the connection area and enhancing pull-out and shear resistance. This prevents loosening and displacement of the tower during long-term operation, ensuring the overall structural safety of the hybrid wind turbine tower.

[0003] A search revealed Chinese Patent Publication No. CN116221029B, which discloses a connection structure for prefabricated tower sections of a hybrid wind power tower. The structure includes a first connecting plate and a second connecting plate, both in a Z-shape. A fixed housing is embedded in one side of the first connecting plate within the segment, and a fixed seat is fixedly connected to one side of the second connecting plate within the segment. A rotating cylinder is located at the center of the fixed seat, and a rotating ring is fixedly connected to the surface of the rotating cylinder. The rotating ring is rotatably connected to the fixed seat. A connecting rod is threaded to the center of the rotating cylinder, and a connecting block is located at one end of the connecting rod. A locking hole is provided on the surface of the fixed housing, through which the connecting block extends and engages with the fixed housing. Fastening bolt assemblies are located on the side of the first and second connecting plates outside the segment. This invention relates to the field of wind power technology. This connection structure for prefabricated tower sections of a hybrid wind power tower solves the problem of most existing connectors using a single-sided connection and fixation method, thus improving the overall stability after connection.

[0004] The above-mentioned device has the following problems: When the connecting plate is to be snapped into the snap hole, the connecting block needs to be inserted into the fixed housing from the upper side of the snap hole and then moved downward so that the plane of the connecting rod fits with the lower side of the snap hole. During the connection process, it is necessary to use equipment such as tower cranes to make the position of one group of segments higher than that of the other group of segments, and at the same time, to use manual assistance to position and connect the two groups of connecting plates. The operation steps are cumbersome, time-consuming and labor-intensive. Therefore, a prefabricated tower section connection structure for wind power hybrid towers is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a prefabricated tower section connection structure for wind power hybrid towers, aiming to solve the problem of cumbersome connection steps for connecting plates in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a prefabricated tower section connection structure for wind power hybrid towers, comprising a first embedded plate, a fixing block fixedly connected to the inner side wall of the first embedded plate, a bolt threadedly connected to the inner wall of the first embedded plate, a ring rotatably connected to the inner side wall of the bolt, a locking block rotatably connected to the outer wall of the bolt, a second embedded plate contacting the right side wall of the first embedded plate, a connecting plate inserted into the inner wall of the first embedded plate, a rectangular block fixedly connected to the inner side wall of the second embedded plate, a fastening bolt threadedly connected to the inner wall of the second embedded plate, and a movable mechanism provided on the inner wall of the rectangular block; The movable mechanism includes a trapezoidal block that is slidably connected to the inner wall of a rectangular block. The trapezoidal block has an inclined groove inside, and a slider is slidably connected to the inner wall of the inclined groove.

[0007] As a further description of the above technical solution: Both the first and second embedded plates have grooves at their top ends.

[0008] As a further description of the above technical solution: The bolt passes through and is threaded onto the inner wall of the fixing block, and the locking block is slidably connected to the inner wall of the fixing block.

[0009] As a further description of the above technical solution: The connecting plate is inserted into the inner wall of the second embedded plate.

[0010] As a further description of the above technical solution: The slider is slidably connected to the inner wall of the rectangular block, and the locking block is locked onto the inner wall of the slider.

[0011] As a further description of the above technical solution: The trapezoidal block is rotatably connected to the outer wall of the fastening bolt, and the fastening bolt is threadedly connected to the inner wall of the rectangular block.

[0012] As a further description of the above technical solution: The ring is inserted into the inner wall of the connecting plate.

[0013] This utility model has the following beneficial effects: 1. In this utility model, after the two sets of segments are aligned and inserted into the connecting plate, the fastening bolt is rotated to drive the trapezoidal block to squeeze the slider, so that the locking block and the slider are locked together to complete the initial fixation. Then the bolt is tightened to allow the bolt ring to limit the connecting plate, thereby fixing the two sets of embedded plates and further enhancing the segment connection.

[0014] 2. In this utility model, after the device is installed into the segment, the embedded plate and the cylindrical concrete are firmly interlocked as the cement is poured into the groove. Compared with the planar contact, the connection area is greatly increased, which effectively improves the overall connection pull-out resistance and shear resistance, and avoids loosening and displacement of the device during long-term operation. Attached Figure Description

[0015] Figure 1 This invention provides a schematic diagram of two embedded plates: a first embedded plate and a second embedded plate, representing a prefabricated tower section connection structure for a wind power hybrid tower. Figure 2 This is an exploded view of the embedded plate 1, embedded plate 2, and connecting plate of the prefabricated tower section connection structure for wind power hybrid tower proposed in this utility model; Figure 3 This is an exploded view of the embedded plate 2 and rectangular block of the prefabricated tower section connection structure for a wind power hybrid tower proposed in this utility model; Figure 4 This is an exploded view of the embedded plate and fixing block of the prefabricated tower section connection structure for a wind power hybrid tower proposed in this utility model.

[0016] Legend: 1. Embedded plate one; 2. Embedded plate two; 3. Fixing block; 4. Clip block; 5. Rectangular block; 6. Trapezoidal block; 7. Sliding block; 8. Bolt; 9. Ring; 10. Fastening bolt; 11. Connecting plate; 12. Groove. 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] Reference Figures 1-3This utility model provides an embodiment of a prefabricated tower section connection structure for wind power hybrid towers, including a pre-embedded plate 1. Multiple sets of circular holes are formed inside both pre-embedded plate 1 and pre-embedded plate 2. Both pre-embedded plate 1 and pre-embedded plate 2 are welded to the reinforcing bars inside the tower section segments through these circular holes. A fixing block 3 is fixedly connected to the inner sidewall of pre-embedded plate 1, and the fixing block 3 is connected to pre-embedded plate 1 by welding, enhancing the connection's strength. A bolt 8 is threadedly connected to the inner wall of pre-embedded plate 1, providing sufficient preload. The pre-embedded plate 1 has threads matching the bolt 8. A ring 9 is rotatably connected to the inner sidewall of bolt 8, and a groove corresponding to the ring 9 is formed on bolt 8, preventing the ring 9 from rotating when bolt 8 rotates. A locking block 4 is rotatably connected to the outer wall of bolt 8, and the locking block 4 achieves positioning through the rotation of bolt 8. The right side wall of the pre-embedded plate 1 contacts the pre-embedded plate 2. A connecting plate 11 is inserted into the inner wall of the pre-embedded plate 1, which connects the pre-embedded plate 1 and the pre-embedded plate 2. The connection is further enhanced by fixing the connecting plate 11 with the ring 9. A rectangular block 5 is fixedly connected to the inner side wall of the pre-embedded plate 2. A fastening bolt 10 is threadedly connected to the inner wall of the pre-embedded plate 2. The pre-embedded plate 2 has a thread that matches the fastening bolt 10. A movable mechanism is provided on the inner wall of the rectangular block 5. The movable mechanism includes a trapezoidal block 6, which is slidably connected to the inner wall of the rectangular block 5. The rectangular block 5 has a slot corresponding to the trapezoidal block 6, which allows the trapezoidal block 6 to move back and forth. An inclined groove is provided inside the trapezoidal block 6. A slider 7 is slidably connected to the inner wall of the inclined groove. When the inclined groove presses the slider 7, the slider 7 can move left and right.

[0019] Reference Figure 1 and Figure 2 Both the top of the embedded plate 1 and the embedded plate 2 are provided with grooves 12. After the cement is poured into the inside of the grooves 12, it will form a firm interlocking state with the concrete structure of the cylindrical body. Compared with the planar contact, it greatly increases the connection area between the device and the cylindrical body.

[0020] Reference Figures 2-4Bolt 8 is threaded through and connected to the inner wall of fixing block 3. Locking block 4 is slidably connected to the inner wall of fixing block 3. Fixing block 3 has a corresponding slot for locking block 4, allowing locking block 4 to move back and forth. Connecting plate 11 is inserted into the inner wall of embedded plate 2. Embedded plate 2 has a corresponding slot for connecting plate 11. Sliding block 7 is slidably connected to the inner wall of rectangular block 5. Rectangular block 5 has a corresponding slot for sliding block 7, allowing sliding block 7 to move left and right. Locking block 4 is locked into the inner wall of sliding block 7. Trapezoidal block 6 is rotatably connected to the outer wall of fastening bolt 10. Trapezoidal block 6 has a slot corresponding to the smooth surface of fastening bolt 10. Fastening bolt 10 is threadedly connected to the inner wall of rectangular block 5. Fastening bolt 10 has a ring 9 identical to that on bolt 8. Ring 9 is inserted into the inner wall of connecting plate 11. Connecting plate 11 has a corresponding slot for ring 9.

[0021] Working principle: When connecting two sets of plates, with embedded plate 1 and embedded plate 2 aligned, the operator can manually insert connecting plate 11 into the slots of embedded plate 1 and embedded plate 2. Then, manually rotate fastening bolt 10. Fastening bolt 10 will move trapezoidal block 6 forward. At this time, the inclined surface on trapezoidal block 6 will press slider 7 to move to the left, causing block 4 to enter the slot of slider 7. As fastening bolt 10 rotates, the ring 9 on fastening bolt 10 will insert into the right slot of connecting plate 11, completing the connection. The right side of the connecting plate 11 is limited, and then the operator can manually tighten the bolt 8. As the bolt 8 moves, the bolt 8 will move forward with the locking block 4 in the slot of the slider 7, so that the locking block 4 and the slider 7 are engaged. At the same time, as the bolt 8 rotates, the ring 9 on the bolt 8 will be inserted into the left slot of the connecting plate 11, thus limiting the left side of the connecting plate 11. The two groups of pieces are fixed by the engagement of the locking block 4 and the slider 7. Then, the connection between the pre-embedded plate 1 and the pre-embedded plate 2 is further enhanced by the connection between the two groups of pieces.

[0022] When the device is installed into the segment, as cement is poured into the groove, the embedded plate 1 and embedded plate 2 will form a firm interlocking state with the concrete structure of the segment body. Compared with planar contact, this greatly increases the connection area between the device and the segment, effectively improving the pull-out resistance and shear resistance of the overall connection, and preventing the device from loosening or shifting during long-term operation of the wind turbine tower.

[0023] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A prefabricated tower section connection structure for wind power hybrid towers, comprising an embedded plate (1), characterized in that: The inner side wall of the first embedded plate (1) is fixedly connected to a fixing block (3), the inner wall of the first embedded plate (1) is threadedly connected to a bolt (8), the inner side wall of the bolt (8) is rotatably connected to a ring (9), the outer wall of the bolt (8) is rotatably connected to a locking block (4), the right side wall of the first embedded plate (1) is in contact with the second embedded plate (2), the inner wall of the first embedded plate (1) is inserted with a connecting plate (11), the inner side wall of the second embedded plate (2) is fixedly connected to a rectangular block (5), the inner wall of the second embedded plate (2) is threadedly connected to a fastening bolt (10), and the inner wall of the rectangular block (5) is provided with a movable mechanism. The active mechanism includes a trapezoidal block (6), which is slidably connected to the inner wall of the rectangular block (5). The trapezoidal block (6) has an inclined groove inside, and a slider (7) is slidably connected to the inner wall of the inclined groove.

2. The prefabricated tower section connection structure for wind power hybrid towers according to claim 1, characterized in that: The top of both the first embedded plate (1) and the second embedded plate (2) are provided with grooves (12).

3. The prefabricated tower section connection structure for wind power hybrid towers according to claim 1, characterized in that: The bolt (8) is threaded through and connected to the inner wall of the fixing block (3), and the locking block (4) is slidably connected to the inner wall of the fixing block (3).

4. The prefabricated tower section connection structure for wind power hybrid towers according to claim 1, characterized in that: The connecting plate (11) is inserted into the inner wall of the pre-embedded plate (2).

5. The prefabricated tower section connection structure for wind power hybrid towers according to claim 1, characterized in that: The slider (7) is slidably connected to the inner wall of the rectangular block (5), and the locking block (4) is locked to the inner wall of the slider (7).

6. The prefabricated tower section connection structure for wind power hybrid towers according to claim 1, characterized in that: The trapezoidal block (6) is rotatably connected to the outer wall of the fastening bolt (10), and the fastening bolt (10) is threadedly connected to the inner wall of the rectangular block (5).

7. The prefabricated tower section connection structure for wind power hybrid towers according to claim 1, characterized in that: The ring (9) is inserted into the inner wall of the connecting plate (11).

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