Tower tube segment vertical seam connecting structure

Abstract

The utility model relates to the field of concrete tower drums, in particular to a tower drum duct piece vertical seam connecting structure which comprises a duct piece and a connecting assembly, the two ends of the duct piece are fixedly connected with a first blocking strip and a second blocking strip respectively, the two ends of the duct piece are provided with a first inserting groove and a second inserting groove respectively, and the two ends of the duct piece are provided with reinforcing grooves respectively. Reinforcing assemblies used for assisting connection of the adjacent pipe pieces are arranged in the reinforcing grooves. The first barrier strip and the second barrier strip are arranged in a matched mode, double-bending blocking is formed on the segment splicing face, transverse shearing force is effectively dispersed, the segments are prevented from dislocation or sliding under the action of external force, the overall structural stability of the tower drum is further enhanced through the application of the reinforcing grooves and the reinforcing assemblies, and the service life of the tower drum is prolonged. The bearing capacity and the reliability of the wind power tower cylinder when the wind power tower cylinder bears external force are effectively improved, and the risk that the grouting material falls off or the bolts loosen due to external force loads is reduced.

Description

Technical Field

[0001] This utility model relates to the field of concrete tower technology, specifically to a vertical joint connection structure for tower segments. Background Technology

[0002] Precast concrete wind turbine towers are mainly used in wind turbine generators with low wind speeds and high hubs. They have advantages such as high self-weight, durability and stability. They are suitable for high hub towers of 100 meters or more, especially for low wind speed, high wind shear, difficult transportation areas, and large single-unit capacity units. Before the tower segments are spliced ​​into a tower, they need to be assembled into a tubular structure and then hoisted by a crane.

[0003] Chinese patent CN219492472U discloses a vertical seam connection structure for tower segments and a prefabricated tower segment. It uses pre-embedded installation components and pre-embedded nuts, and uses connecting bolts to initially interconnect the two segments during connection. Then, grouting material is used to fill the vertical seam and gap to further strengthen the connection. The connection is stable and reliable, giving the tower segment strong structural stability and improving the load-bearing capacity of the wind turbine tower.

[0004] Although the above scheme uses pre-embedded bolts and nuts to connect the two segments, since the connection point of the segments is a plane, the load-bearing part of the segments relies only on the bolts and the grout in the gaps to bear the load. Under the load of external forces, the grout is prone to falling off and the bolts to loosen, which in turn affects the quality of the tower.

[0005] Therefore, this utility model provides a vertical seam connection structure for tower tube segments to solve the above problems. Utility Model Content

[0006] In order to overcome the shortcomings of the prior art, this utility model provides a vertical joint connection structure for tower segments. This solves the problem that the joint of the segments is a plane, and the load-bearing parts of the segments rely solely on bolts and grout in the gaps for support. Under external loads, the grout is prone to falling off and the bolts to loosen, which in turn affects the quality of the tower.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0008] A vertical joint connection structure for tower tube segments includes tube segments and connecting components. Each end of the tube segment is fixedly connected to a first stop bar and a second stop bar, respectively. Each end of the tube segment is provided with a first slot and a second slot, respectively. Each end of the tube segment is provided with a reinforcing groove, and a reinforcing component for assisting the connection of adjacent tube segments is provided in the reinforcing groove.

[0009] Preferably, the connecting assembly includes an arc bolt, the tube segment has an arc hole, the inner wall of the tube segment has a limiting groove, and the limiting groove is connected to the arc hole. The two ends of the arc bolt pass through two arc holes respectively and are threadedly connected to a locking nut, and the locking nut is located in the limiting groove.

[0010] Preferably, the first stop bar is located on the outer ring of the tube segment, the second stop bar is located on the inner ring of the tube segment, the first slot matches the second stop bar, and the first stop bar matches the second slot.

[0011] Preferably, the second stop bar has a first screw hole arranged at equal intervals, the inner wall of the first slot has a second screw hole, a fixing bolt is threaded onto the first screw hole, and one end of the fixing bolt is matched with the second screw hole.

[0012] Preferably, the reinforcement component includes a reinforcement member, which is inserted into the reinforcement groove. The reinforcement member has a positioning hole, and the middle section of the arc bolt passes through the positioning hole and is located inside the reinforcement member.

[0013] Preferably, the reinforcement is filled with grout.

[0014] Preferably, connecting pieces are fixedly connected to both sides of the reinforcing member, and sealing strips are fixedly connected to the connecting pieces. A sealing groove is formed on the inner wall of the reinforcing groove, and the end of the sealing strip away from the connecting piece is inserted into the sealing groove.

[0015] The beneficial effects of this utility model are as follows:

[0016] 1. By combining the first and second baffles, a double bending barrier is formed at the segment splicing surface, effectively dispersing the lateral shear force and preventing the segments from misaligning or slipping under external force. Furthermore, the application of reinforcement grooves and reinforcement components further enhances the overall structural stability of the tower, effectively improving the load-bearing capacity and reliability of the wind turbine tower under external force, and reducing the risk of grout material falling off or bolts loosening due to external loads.

[0017] 2. By using arc bolts to penetrate the arc-shaped holes of the pipe segments and locking them in the limiting groove with locking nuts, the arc structure better conforms to the curvature of the pipe segments compared to traditional flat bolt connections, avoiding bolt loosening caused by stress concentration. Furthermore, by filling the reinforcement with grout, not only are the splicing gaps filled, but the arc bolts are also wrapped, forming a composite load-bearing system and improving tensile strength. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the present invention in its assembled state.

[0019] Figure 2 This utility model Figure 1 An enlarged schematic diagram of the structure at point A in the middle.

[0020] Figure 3 This is a schematic diagram of the installation of the reinforcement component of this utility model on the pipe segment.

[0021] Figure 4 This is a perspective view of the tube segment of this utility model.

[0022] In the diagram: 1. Tubular segment; 2. First stop bar; 3. First slot; 4. Second stop bar; 5. Second slot; 6. Reinforcing groove; 7. Reinforcing member; 8. Connecting piece; 9. Sealing strip; 10. Sealing groove; 11. First screw hole; 12. Second screw hole; 13. Fixing bolt; 14. Positioning hole; 15. Arc bolt; 16. Locking nut; 17. Restriction groove; 18. Arc hole. Detailed Implementation

[0023] The following will refer to the attached reference. Figures 1 to 4 The various embodiments of this utility model will be described in detail below. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of this utility model and are not intended to limit the scope of protection of this utility model.

[0024] A vertical seam connection structure for tower tube segments includes a tube segment 1 and a connecting assembly. The connecting assembly includes an arc bolt 15. An arc hole 18 is provided on the tube segment 1. A limiting groove 17 is provided on the inner wall of the tube segment 1, and the limiting groove 17 is connected to the arc hole 18. The two ends of the arc bolt 15 pass through the two arc holes 18 respectively and are threadedly connected to a locking nut 16, and the locking nut 16 is located in the limiting groove 17.

[0025] Two arc-shaped holes 18 are located at both ends of the tube segment 1. That is, when two adjacent tube segments 1 are spliced ​​in the lateral direction, the arc-shaped holes 18 on the two tube segments 1 are in a connected state. One end of the arc bolt 15 is passed through the two arc-shaped holes 18 in sequence, and locking nuts 16 are installed at both ends of the arc bolt 15. The locking nuts 16 are pressed against the inner wall of the limiting groove 17 to complete the connection of the two tube segments 1.

[0026] The tube segment 1 has a first stop bar 2 and a second stop bar 4 fixedly connected to both ends. The tube segment 1 has a first slot 3 and a second slot 5 respectively. The first stop bar 2 is located on the outer ring of the tube segment 1, and the second stop bar 4 is located on the inner ring of the tube segment 1. The first slot 3 matches the second stop bar 4, and the first stop bar 2 matches the second slot 5.

[0027] When horizontally adjacent segments 1 are spliced, the first stop bar 2 needs to be inserted into the second slot 5, and the first slot 3 needs to be inserted into the second stop bar 4. This forms two bending barriers at the splicing surface of the two segments 1, so that when the adjacent segments are offset under the action of external force, the first stop bar 2 and the first slot 3 can both block the displacement force.

[0028] In this embodiment, the second stop bar 4 is provided with first screw holes 11 arranged at equal intervals, the inner wall of the first slot 3 is provided with second screw holes 12, and a fixing bolt 13 is threadedly connected to the first screw hole 11, and one end of the fixing bolt 13 is adapted to the second screw hole 12.

[0029] The first stop bar 2 and the tube segment 1 and the first slot 3 and the tube segment 1 are all integral structures. After the adjacent tube segments 1 are spliced ​​together, the fixing bolts 13 are threaded onto the second screw hole 12 and the first screw hole 11 to reinforce the connection between the two tube segments 1.

[0030] The tube segment 1 has a reinforcing groove 6 at both ends. The reinforcing groove 6 is provided with a reinforcing component for assisting the connection of adjacent tube segments 1. The reinforcing component includes a reinforcing member 7, which is inserted into the reinforcing groove 6. The reinforcing member 7 has a positioning hole 14. The middle section of the arc bolt 15 passes through the positioning hole 14 and is located in the reinforcing member 7.

[0031] When two adjacent tube segments 1 are connected laterally, the reinforcing grooves 6 on the two tube segments 1 will converge into a square frame structure. After the reinforcing member 7 is inserted into the square frame structure, the arc bolt 15 will pass through the positioning hole 14 to fix the limiting groove 17 in the reinforcing groove 6.

[0032] The reinforcement component 7 is filled with grout. After the reinforcement component 7 is installed, the reinforcement component 7 is reinforced again by filling it with grout. It can also reinforce the connection between the arc bolt 15 and the reinforcement component 7.

[0033] In this embodiment, connecting pieces 8 are fixedly connected to both sides of the reinforcing member 7, and sealing strips 9 are fixedly connected to the connecting pieces 8. A sealing groove 10 is opened on the inner wall of the reinforcing groove 6, and the end of the sealing strip 9 away from the connecting piece 8 is inserted into the sealing groove 10.

[0034] The sealing strip 9 is made of rubber. When the sealing strip 9 is pressed against the sealing groove 10, it forms a sealing barrier, thereby enhancing the sealing effect of the reinforcement 7 in the reinforcement groove 6.

[0035] It should be noted that in the description of this utility model, terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," which indicate direction or positional relationships, are based on the direction or positional relationships shown in the accompanying drawings. These are used merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0036] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0037] The technical solution of this utility model has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of this utility model.

Claims

1. A vertical seam connection structure for tower tube segments, comprising tube segment components (1) and connecting assemblies, characterized in that, The two ends of the tube segment (1) are respectively fixedly connected with a first stop bar (2) and a second stop bar (4). The two ends of the tube segment (1) are respectively provided with a first slot (3) and a second slot (5). The two ends of the tube segment (1) are respectively provided with a reinforcing groove (6). The reinforcing groove (6) is provided with a reinforcing component for assisting the connection of adjacent tube segments (1).

2. The vertical seam connection structure for tower tube segments according to claim 1, characterized in that, The connecting assembly includes an arc bolt (15), an arc hole (18) is provided on the tube segment (1), a limiting groove (17) is provided on the inner wall of the tube segment (1), and the limiting groove (17) is connected to the arc hole (18). The two ends of the arc bolt (15) pass through the two arc holes (18) respectively and are threaded with a locking nut (16), and the locking nut (16) is located in the limiting groove (17).

3. The vertical seam connection structure for tower tube segments according to claim 1, characterized in that, The first stop bar (2) is located on the outer ring of the tube segment (1), the second stop bar (4) is located on the inner ring of the tube segment (1), the first slot (3) matches the second stop bar (4), and the first stop bar (2) matches the second slot (5).

4. The vertical seam connection structure for tower tube segments according to claim 1, characterized in that, The second stop bar (4) has a first screw hole (11) arranged at equal intervals, and the inner wall of the first slot (3) has a second screw hole (12). A fixing bolt (13) is threaded onto the first screw hole (11), and one end of the fixing bolt (13) is adapted to the second screw hole (12).

5. The vertical seam connection structure for tower tube segments according to claim 2, characterized in that, The reinforcement component includes a reinforcement member (7), which is inserted into the reinforcement groove (6). The reinforcement member (7) has a positioning hole (14), and the middle section of the arc bolt (15) passes through the positioning hole (14) and is located inside the reinforcement member (7).

6. The vertical seam connection structure for tower tube segments according to claim 5, characterized in that, The reinforcement component (7) is filled with grout.

7. The vertical seam connection structure for tower tube segments according to claim 5, characterized in that, Both sides of the reinforcement member (7) are fixedly connected with connecting pieces (8), and sealing strips (9) are fixedly connected on the connecting pieces (8). The inner wall of the reinforcement groove (6) is provided with a sealing groove (10), and the end of the sealing strip (9) away from the connecting piece (8) is inserted into the sealing groove (10).

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