A wind-resistant device for a pole tower

Abstract

The utility model discloses a kind of wind-resistant devices for pole tower, belong to wind-resistant device field, including installation base, the top of installation base is equipped with pole tower body, the bottom of pole tower body is fixedly connected with mounting seat, by being provided with the wind-breaking strip of triangle one side tip position outward in pole tower body outer wall, strong wind acting on pole body can be shunted cutting, effectively reduce wind load and avoid pole body resonance, alleviate the problem that existing smooth pole body is under stress when wind, shake violently, simultaneously, by being provided with the first wind-resistant piece consisting of first cable-stayed rod, first concave connector etc. between pole tower body and installation base, and additional second wind-resistant piece between first wind-resistant piece and installation base, multiple oblique support structure is formed, replace the single connection mode of only relying on bottom bolt at present, greatly dispersed the overturning moment of pole tower bottom caused by strong wind, avoid bolt loosening or fracture, improve the overall stability of pole tower.

Description

Technical Field

[0001] This utility model relates to the field of wind-resistant devices, and in particular to a wind-resistant device for poles and towers. Background Technology

[0002] Power poles are the core load-bearing structures in overhead power lines (including transmission and distribution lines) used to support power facilities. Their core function is to lift key components such as conductors and lightning protection wires off the ground and other obstacles, ensuring safe distances between conductors and between conductors and the ground or buildings, thereby achieving long-distance, safe, and stable power transmission. They are mainly made of reinforced concrete, steel, and wood, with concrete and steel poles being the most widely used in modern power engineering due to their high strength and durability. Depending on the line function and installation scenario, power poles can be divided into several types, such as straight-line poles used for straight sections of lines to withstand vertical loads and wind forces; tension poles used at line segmentation points to withstand conductor tension; angle poles used at line bends to adapt to changes in direction; and terminal poles installed at the beginning or end of lines, connecting power plants or substations.

[0003] In existing technologies, when installing power poles, anchor bolts are usually pre-embedded on the poured ground foundation. During the installation phase, the pole is lifted by hoisting equipment and placed vertically on the foundation. After the anchor bolts pass through the mounting holes of the mounting base at the bottom of the pole, the nuts are tightened to fix the mounting base to the foundation, thereby achieving the installation and fixation of the pole.

[0004] However, this installation method has obvious problems with wind resistance:

[0005] On the one hand, the connection between the tower and the installation foundation relies solely on the bolts of the bottom mounting base, and the connection structure is relatively simple. When encountering strong winds, the bottom of the tower is prone to a large overturning moment, which may cause the bolts to loosen or even break, affecting the stability of the tower.

[0006] On the other hand, the existing poles are mostly smooth cylindrical or prismatic structures. When strong winds act on the surface of the poles, they are prone to generating large wind loads. This not only increases the stress on the poles but may also cause resonance, further aggravating the swaying amplitude of the poles. In windy areas or under extreme weather conditions such as typhoons and strong gusts, the above defects will lead to insufficient wind resistance of the poles. At best, this will result in pole tilting and conductor slack; at worst, it will cause the poles to collapse, causing power line interruptions and seriously affecting production, daily life, and power grid safety. Utility Model Content

[0007] The main purpose of this utility model is to provide a wind-resistant device for poles and towers, which can effectively solve the problems in the background art.

[0008] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0009] A wind-resistant device for a pole includes a mounting foundation, a pole body is provided on the top of the mounting foundation, a mounting seat is fixedly connected to the bottom of the pole body, and the pole body is fixedly connected to the mounting foundation through the mounting seat.

[0010] Several wind-breaking strips are fixedly connected to the outer wall of the tower body;

[0011] The outer wall of the tower body is fixedly connected to the top of the installation foundation with a first connecting lug, and a first wind-resistant component is provided between the first connecting lugs to enhance the stability of the tower body.

[0012] Preferably, the top of the mounting base has a plurality of mounting holes arranged in a circular array, and the top of the mounting base is fixedly connected with anchor bolts corresponding to the mounting holes. The anchor bolts are inserted into the mounting holes, and fastening nuts are threaded onto the anchor bolts.

[0013] Preferably, the first wind-resistant component includes a first diagonal tie rod, a first concave connector, a first threaded pin, and a first connecting nut. A plurality of first connecting ears are fixedly connected in a circular array on the top of the mounting foundation and the outer wall of the tower body. A first ear hole is provided on one side of each first connecting ear. The first concave connector is fixedly connected to both ends of the first diagonal tie rod. The first connecting ear is located within the recess of the first concave connector. Connecting holes corresponding to the first ear holes are provided on both sides of the first concave connector. The first threaded pin passes through the connecting hole and the first ear hole. The threaded end of the first threaded pin is threadedly connected to the first connecting nut. A second wind-resistant component is provided between the first wind-resistant component and the mounting foundation to further enhance the stability of the tower body.

[0014] Preferably, the second wind-resistant component includes a second connecting lug, a second diagonal brace, a second concave connecting head, a second threaded pin, and a second connecting nut. The outer wall of the first diagonal brace and the top of the mounting base are fixedly connected with corresponding second connecting lugs. The second connecting lug on the top of the mounting base is located on the side of the first connecting lug near the tower body. A second ear hole is opened on one side of the second connecting lug. The two ends of the second diagonal brace are fixedly connected with the second concave connecting head. The second connecting lug is located in the recess of the second concave connecting head. The second concave connecting head has a second connecting hole corresponding to the second ear hole. The second threaded pin passes through the second connecting hole and the second ear hole. The threaded end of the second threaded pin is threadedly connected to the second connecting nut.

[0015] Preferably, a plurality of the wind-breaking strips are fixedly connected to the outer wall of the tower body in a ring array and located above the first connecting lug.

[0016] Preferably, the air-breaking strip is triangular in shape, with one pointed end of the air-breaking strip facing outward.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] By installing a triangular wind-breaking strip with the pointed end of one side facing outward on the outer wall of the tower body, the strong wind acting on the tower body can be diverted and cut off, effectively reducing wind load and avoiding tower resonance, thus alleviating the problem of large stress and violent swaying of existing smooth towers when exposed to wind.

[0019] Meanwhile, by setting a first wind-resistant component consisting of a first diagonal tie rod and a first concave connector between the tower body and the installation foundation, and by adding a second wind-resistant component between the first wind-resistant component and the installation foundation, a multi-directional diagonal support structure is formed, replacing the existing single connection method that relies solely on bottom bolts. This significantly disperses the overturning moment at the bottom of the tower caused by strong winds, prevents bolts from loosening or breaking, improves the overall stability of the tower, solves the problem of insufficient wind resistance of existing towers and their tendency to tilt and collapse under extreme weather conditions, and ensures the safe operation of power lines. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the structure of the tower body of this utility model;

[0022] Figure 3 This is a schematic diagram of the installation foundation of this utility model;

[0023] Figure 4 This is a schematic diagram of the structure of the first and second wind-resistant components of this utility model.

[0024] In the diagram: 1. Installation foundation; 2. Tower body; 3. Mounting base; 4. Mounting hole; 5. Anchor bolt; 6. Fastening nut; 7. First connecting lug; 8. First lug hole; 9. First diagonal tie rod; 10. First concave connector; 11. Connecting hole; 12. First threaded pin; 13. First connecting nut; 14. Second connecting lug; 15. Second lug hole; 16. Second diagonal tie rod; 17. Second concave connector; 18. Second connecting hole; 19. Second threaded pin; 20. Second connecting nut; 21. Windbreak strip. Detailed Implementation

[0025] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0026] like Figure 1- Figure 4 As shown, a wind-resistant device for a pole includes a mounting base 1, a pole body 2 is provided on the top of the mounting base 1, and a mounting seat 3 is fixedly connected to the bottom of the pole body 2. The pole body 2 is fixedly connected to the mounting base 1 through the mounting seat 3.

[0027] Several wind-breaking strips 21 are fixedly connected to the outer wall of the tower body 2;

[0028] The outer wall of the tower body 2 is fixedly connected to the top of the installation foundation 1 with a first connecting lug 7, and a first wind-resistant component is provided between the first connecting lugs 7 to enhance the stability of the tower body 2.

[0029] like Figure 2 and Figure 3 As shown, the top of the mounting base 3 has several mounting holes 4 arranged in a ring array. The top of the mounting base 1 is fixedly connected with anchor bolts 5 corresponding to the mounting holes 4. The anchor bolts 5 are inserted into the mounting holes 4. The anchor bolts 5 are threaded with fastening nuts 6. By inserting the anchor bolts 5 into the mounting holes 4 and tightening the fastening nuts 6, the mounting base 3 and the mounting base 1 are fixedly connected, thereby fixing the tower body 2.

[0030] like Figure 3 and Figure 4 As shown, the first wind-resistant component includes a first diagonal tie rod 9, a first concave connector 10, a first threaded pin 12, and a first connecting nut 13. Several first connecting ears 7 are fixedly connected in a ring array on the top of the mounting base 1 and the outer wall of the tower body 2. A first ear hole 8 is opened on one side of the first connecting ear 7. The first concave connector 10 is fixedly connected to both ends of the first diagonal tie rod 9. The first connecting ear 7 is located in the recess of the first concave connector 10. Connecting holes 11 corresponding to the first ear hole 8 are opened on both sides of the first concave connector 10. The first threaded pin 12 passes through the connecting hole 11 and the first ear hole 8. The threaded end of the first threaded pin 12 is threadedly connected to the first connecting nut 13. A second wind-resistant component is provided between the first wind-resistant component and the mounting base 1 to further enhance the stability of the tower body 2.

[0031] The first connecting lug 7 of the ring array allows the first diagonal tie rod 9 to pull and support the tower body 2 from multiple directions. When the tower is subjected to horizontal wind load, the first diagonal tie rod 9 on the windward side will generate tension, while the one on the leeward side will generate pressure. Together they work to resist the horizontal tilt and sway of the tower.

[0032] The interlocking connection between the first concave connector 10 and the first connecting ear 7, and the fixing of the first threaded pin 12 and the first connecting nut 13, ensure the effective transmission of force, prevent the connection from becoming loose or failing, improve the ability of the tower body 2 to resist strong winds, and reduce the risk of the tower tipping over under the action of wind.

[0033] Meanwhile, the structure provides a foundation for the installation of a second wind-resistant component, which can further enhance the wind-resistant effect;

[0034] like Figure 3 and Figure 4 As shown, the second wind-resistant component includes a second connecting lug 14, a second diagonal brace 16, a second concave connector 17, a second threaded pin 19, and a second connecting nut 20. The outer wall of the first diagonal brace 9 and the top of the mounting base 1 are fixedly connected with corresponding second connecting lugs 14. The second connecting lug 14 on the top of the mounting base 1 is located on the side of the first connecting lug 7 near the tower body 2. A second ear hole 15 is opened on one side of the second connecting lug 14. The two ends of the second diagonal brace 16 are fixedly connected with the second concave connector 17. The second connecting lug 14 is located in the recess of the second concave connector 17. The second concave connector 17 has a second connecting hole 18 corresponding to the second ear hole 15. The second threaded pin 19 passes through the second connecting hole 18 and the second ear hole 15. The threaded end of the second threaded pin 19 is threadedly connected to the second connecting nut 20.

[0035] The second connecting lug 14 at the top of the installation foundation 1 is close to the tower body 2, which makes the support distance of the second tie rod 16 shorter and the support stiffness greater, enabling it to respond quickly and offset part of the wind load on the tower.

[0036] The second diagonal brace 16 connects the first diagonal brace 9 to the installation foundation 1. It not only shares the force of the first diagonal brace 9, but also restricts the lateral displacement of the first diagonal brace 9, preventing it from swaying or becoming unstable in strong winds. This forms a double diagonal support protection, which enhances the wind resistance of the entire tower. Especially when encountering strong gusts or typhoons, it can effectively reduce the deformation of the tower and further ensure the safety of the tower structure.

[0037] like Figure 1 and Figure 2 As shown, several wind-breaking strips 21 are fixedly connected to the outer wall of the tower body 2 in a ring array and located above the first connecting lug 7;

[0038] Among them, the wind-breaking strips 21 of the ring array can initially weaken the force of the wind on the tower body 2, reduce the pressure of the stable airflow on the tower by dividing the airflow, and avoid vortex-induced vibration caused by the formation of a large area vortex at the tail of the tower by the airflow.

[0039] In addition, by placing the wind-breaking strip 21 above the first connecting ear 7, the wind field environment in the upper part of the tower can be optimized in a targeted manner, making the wind on the tower more uniform and reducing the tower torsion or bending caused by the difference in wind on the upper and lower parts. Together with the wind-resistant components at the bottom, the wind load on the tower can be optimized throughout its entire height range.

[0040] like Figure 1and Figure 2 As shown, the air-breaking strip 21 is triangular in shape, with the pointed end of one side of the air-breaking strip 21 facing outward;

[0041] Among them, the air-breaking strip 21 adopts a "triangular shape + one side of the tip facing outward" design. Its core principle is to optimize wind resistance by utilizing the streamlined features of the triangle and the guiding effect of the tip.

[0042] With the apex of the triangle facing outwards, the air-breaking strip 21 contacts the airflow first when it faces the airflow. The narrow cross section of the apex can quickly "cut" the airflow and guide it to the two inclined surfaces of the triangle, allowing the airflow to flow smoothly along the inclined surfaces and avoiding large impacts and stagnation of the airflow on the surface of the air-breaking strip. At the same time, the triangular structure itself has high structural strength and can maintain its shape stability when subjected to airflow impact, and is not easy to deform.

[0043] The principle of the wind-resistant device for this tower is as follows:

[0044] After the tower body 2 is hoisted vertically and placed on top of the installation foundation 1, and the anchor bolts 5 pass through the installation holes 4 opened on the top of the mounting base 3, and the tower body 2 is installed by fastening nuts 6 on the anchor bolts 5, the first diagonal tie rod 9 is placed between the outer wall of the tower body 2 and the first connecting lug 7 installed on the top of the installation foundation 1, and the first connecting lug 7 is placed in the recess of the first concave connector 10 installed at both ends of the first diagonal tie rod 9. Then, the first ear hole 8 opened on one side of the first connecting lug 7 is aligned with the connecting holes 11 opened on both sides of the first concave connector 10. The first threaded pin 12 passes through the connecting hole 11 and the first ear hole 8 from one side of the first concave connector 10. Then, the first connecting nut 13 is threaded to the threaded end of the first threaded pin 12. In this way, the first diagonal tie rod 9 can be connected and fixed between the tower body 2 and the installation foundation 1. The installation foundation 1, the tower body 2 and the first diagonal tie rod 9 form a triangular stable shape structure, forming the first wind-resistant support structure.

[0045] Simultaneously, the second tie rod 16 is placed between the outer wall of the first tie rod 9 and the second connecting lug 14 installed on the top of the tower body 2, so that the second connecting lug 14 is placed in the recess of the second concave connector 17 installed at both ends of the second tie rod 16, and the second ear hole 15 opened on one side of the second connecting lug 14 is aligned with the second connecting hole 18 opened on both sides of the second concave connector 17. Then, the second threaded pin 19 passes through the second connecting hole 18 and the second ear hole 15 from one side of the second concave connector 17, and the second connecting nut 20 is threaded to the threaded end of the second threaded pin 19. The second tie rod 16 can be installed between the first tie rod 9 and the mounting base 1. The first tie rod 9, the second tie rod 16 and the tower body 2 form a triangular stable shape structure, and the first tie rod 9, the second tie rod 16 and the mounting base 1 also form a triangular stable shape structure, forming a second wind-resistant support structure, which works in conjunction with the first support structure.

[0046] Therefore, when the tower body 2 encounters strong winds, the multi-diagonal support system composed of the first diagonal tie rod 9 and the second diagonal tie rod 16 can effectively disperse the huge overturning moment generated by the wind on the bottom of the tower, and prevent the anchor bolts 5 from loosening or breaking due to excessive force. At the same time, this support system can also enhance the connection rigidity and overall stability between the tower body and the installation foundation, and effectively suppress the swaying and resonance of the tower under the action of wind. When the two work together, the first wind-resistant component directly bears and disperses the direct action of the wind on the bottom of the tower body 2, while the second wind-resistant component serves as an auxiliary support to enhance the rigidity and stability of the overall structure, thereby improving the wind resistance and safe operation level of the tower under extreme weather conditions.

[0047] Furthermore, by fixing several triangular wind-breaking strips 21 with their pointed ends facing outwards in a circular array on the outer wall of the tower body 2, these wind-breaking strips 21 can effectively divert and cut strong winds, reduce the load on the tower caused by the wind and avoid resonance of the tower body, thereby further improving the wind resistance performance of the tower body 2.

[0048] The above description is merely 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, various improvements can be made to it without departing from the scope of the present utility model, and components can be replaced with equivalents or some technical features can be replaced with equivalents. All such improvements 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 wind-resistant device for a pole, comprising an installation foundation (1), wherein a pole body (2) is provided on the top of the installation foundation (1), and an installation seat (3) is fixedly connected to the bottom of the pole body (2), and the pole body (2) is fixedly connected to the installation foundation (1) through the installation seat (3); Its features are: Several wind-breaking strips (21) are fixedly connected to the outer wall of the tower body (2); The outer wall of the tower body (2) is fixedly connected to the top of the installation foundation (1) with a first connecting ear (7), and a first wind-resistant component is provided between the first connecting ears (7) to enhance the stability of the tower body (2).

2. The wind-resistant device for towers according to claim 1, characterized in that: The top of the mounting base (3) has a number of mounting holes (4) arranged in a ring array. The top of the mounting base (1) is fixedly connected with anchor bolts (5) corresponding to the mounting holes (4). The anchor bolts (5) are inserted into the mounting holes (4). The anchor bolts (5) are threaded with fastening nuts (6).

3. The wind-resistant device for poles and towers according to claim 1, characterized in that: The first wind-resistant component includes a first diagonal brace (9), a first concave connector (10), a first threaded pin (12), and a first connecting nut (13). Several first connecting ears (7) are fixedly connected in a ring array on the top of the mounting base (1) and the outer wall of the tower body (2). A first ear hole (8) is opened on one side of the first connecting ear (7). The first concave connector (10) is fixedly connected to both ends of the first diagonal brace (9). The first connecting ear (7) is located in the recess of the first concave connector (10). The first concave connector (10) has connecting holes (11) on both sides corresponding to the first ear hole (8). The first threaded pin (12) passes through the connecting hole (11) and the first ear hole (8). The threaded end of the first threaded pin (12) is threadedly connected to the first connecting nut (13). A second wind-resistant component is provided between the first wind-resistant component and the mounting base (1) to further enhance the stability of the tower body (2).

4. A wind-resistant device for poles and towers according to claim 3, characterized in that: The second wind-resistant component includes a second connecting lug (14), a second diagonal brace (16), a second concave connector (17), a second threaded pin (19), and a second connecting nut (20). The outer wall of the first diagonal brace (9) and the top of the mounting base (1) are fixedly connected with corresponding second connecting lugs (14). The second connecting lug (14) on the top of the mounting base (1) is located on the side of the first connecting lug (7) near the tower body (2). A second ear hole (15) is opened on one side of the second connecting lug (14). The two ends of the second diagonal brace (16) are fixedly connected with the second concave connector (17). The second connecting lug (14) is located in the recess of the second concave connector (17). The second concave connector (17) is opened with a second connecting hole (18) corresponding to the second ear hole (15). The second threaded pin (19) passes through the second connecting hole (18) and the second ear hole (15). The threaded end of the second threaded pin (19) is threadedly connected with the second connecting nut (20).

5. A wind-resistant device for towers according to claim 1, characterized in that: Several of the aforementioned windbreak strips (21) are fixedly connected to the outer wall of the tower body (2) in a ring array and located above the first connecting lug (7).

6. A wind-resistant device for poles and towers according to claim 5, characterized in that: The air-breaking strip (21) is triangular in shape, with the pointed end of one side of the air-breaking strip (21) facing outward.

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