Connection node device for connecting angle steel tower and foundation of high-voltage transmission line

Abstract

The invention discloses a connecting node device for connecting an angle steel tower and a foundation of a high-voltage transmission line, relates to the field of high-voltage transmission line facilities, and provides the following scheme that the connecting node device comprises a top plate, a bottom plate and an inclined pulling and pressing plate, and further comprises an angle adjusting mechanism which is arranged between the bottom plate and the inclined pulling and pressing plate and is used for performing angle inclination adjustment on the inclined pulling and pressing plate; the requirements of different mounting angles are met; and the limiting mechanism is fixed. The angle of the inclined pulling and pressing plate can be flexibly adjusted, the problem that the size of an iron tower is not matched with the size of a foundation due to design, machining or construction errors is effectively solved, through the synergistic effect of the threaded rod and the linkage rod, it is guaranteed that the connecting joint does not loosen or deform under the long-term load effect, and the structural safety is improved; meanwhile, the balance between the top plate and the bottom plate can be automatically kept in the angle adjusting process, local stress concentration is avoided, the node can bear vertical, horizontal and torque loads transmitted by the angle steel tower more evenly, and the node is suitable for the complex geological environment.

Description

Technical Field

[0001] The present invention relates to the field of high-voltage transmission line facilities, and in particular to a connection node device for connecting an angle steel tower of a high-voltage transmission line with a foundation. Background Art

[0002] In high-voltage transmission lines, the stable connection between angle steel towers and foundations is the key to ensuring line safety. Currently, angle steel towers are connected to the foundations through tower base plates and anchor bolts. The tower root opening and foundation root opening need to match. However, in actual projects, due to errors in design, processing, and construction, the two sizes often do not match, resulting in the inability to install the towers. The foundation or tower may need to be scrapped, increasing costs and extending the construction period. At the same time, the existing connection device has a fixed angle of tension and compression plates and poor adaptability. To this end, we proposed a connection node device for connecting the angle steel towers and foundations of high-voltage transmission lines. Summary of the Invention

[0003] The connection node device for connecting the angle steel tower of a high-voltage transmission line and the foundation proposed in the present invention solves the above-mentioned deficiencies in the prior art.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions: The connection node device for connecting the angle steel tower of a high-voltage transmission line to the foundation includes a top plate, a bottom plate and an inclined tension and compression plate, and also includes: An angle adjustment mechanism, located between the bottom plate and the inclined tension and pressure plate, is used to adjust the angle of the inclined tension and pressure plate to suit different installation angle requirements; Fixed limiting mechanisms, located between the bottom plate and the inclined tension and pressure plate, as well as between the top plate and the inclined tension and pressure plate, are used to fix and limit the entire device after angle adjustment to ensure structural stability; The traction balancing mechanism is located between the top plate and the bottom plate and is used to automatically adjust the top plate and the bottom plate to maintain balance and avoid stress concentration.

[0005] Furthermore, the angle adjustment mechanism includes a first connecting block rotatably connected to one side of the top of the base plate, one side of the first connecting block is rotatably connected to a first threaded rod, one side of the inclined tension and pressure plate is rotatably connected to a second connecting block, and one side of the second connecting block is fixedly connected to a fixed rod.

[0006] Furthermore, one end of the fixed rod is fixedly connected to a first linkage plate, the other side of the first linkage plate is symmetrically fixedly connected to a traction rod, the other sides of the two traction rods are fixedly connected to a first movable plate, a first threaded hole is opened on the first movable plate, and the first threaded rod is threadedly sleeved inside the first threaded hole.

[0007] Furthermore, one end of the first threaded rod is fixedly connected to the first bevel gear, one side of the first connecting block is rotatably connected to the operating rod, one end of the operating rod is fixedly connected to the second bevel gear corresponding to the first bevel gear, and one side of the second bevel gear is engaged with the first bevel gear for transmission.

[0008] Furthermore, the fixed limiting mechanism includes a third connecting block rotatably connected to the opposite side of the top plate and the bottom plate respectively, one side of the third connecting block is fixedly connected to a second threaded rod, and the second movable plate is threadedly connected to the second threaded rod.

[0009] Furthermore, the two sides of the inclined tension and compression plate are rotatably connected to the fourth connecting block, one side of the fourth connecting block is fixedly connected to the third threaded rod, the third threaded rod is threadedly connected to the third movable plate, and a connecting rod is fixedly connected between the third movable plate and the second movable plate.

[0010] Furthermore, the traction balancing mechanism includes a first balance bar symmetrically connected to the bottom of the top plate, the top of the bottom plate is rotatably connected to the second balance bar, the two sides of the inclined tension and pressure plate are respectively rotatably connected to the traction plate, and one end of the first balance bar and the second balance bar are respectively rotatably connected to the two sides of the traction plate.

[0011] Furthermore, the top plate and the bottom plate are fixedly connected to both ends of the inclined tension and compression plate by fastening bolts respectively.

[0012] Furthermore, a plurality of reinforcing ribs are fixedly connected in an array on the inclined tension and compression plate, and the cross section of the reinforcing ribs is an isosceles trapezoid.

[0013] Compared with the existing technology, the beneficial effects of the present invention are: The present invention can flexibly adjust the angle of the inclined tension and compression plate through the angle adjustment mechanism, effectively adapting to the problem of mismatch between the tower and the foundation size caused by design, processing or construction errors, without scrapping or modifying the foundation / tower, greatly reducing project costs and shortening construction period; The fixed limit mechanism of the present invention, through the coordinated action of the threaded rod and the connecting rod, can firmly lock the top plate, bottom plate and inclined tension and compression plate after the angle is adjusted, ensuring that the connection nodes will not loosen or deform under long-term load, thereby improving the safety of the structure. The traction balancing mechanism in the present invention can automatically maintain the balance between the top plate and the bottom plate during the angle adjustment process through the linkage between the balance rod and the traction plate, avoiding local stress concentration, so that the node can more evenly bear the vertical, horizontal and torque loads transmitted by the angle steel tower, and is suitable for complex geological environments.

[0014] In summary, this equipment can not only flexibly adjust the angle of the inclined tension and compression plate, effectively adapt to the mismatch problem between the tower and the foundation size caused by design, processing or construction errors, but also ensure that the connection node does not loosen or deform under long-term load through the coordinated action of the threaded rod and the connecting rod, thereby improving the structural safety. At the same time, it can automatically maintain the balance between the top plate and the bottom plate during the angle adjustment process, avoid local stress concentration, and enable the node to more evenly bear the vertical, horizontal and torque loads transmitted by the angle steel tower, making it suitable for complex geological environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall first top view of the three-dimensional structure of the connection node device for connecting the angle steel tower and the foundation of the high-voltage transmission line proposed by the present invention; Figure 2 This is a schematic diagram of the overall second top view of the three-dimensional structure of the connection node device for connecting the angle steel tower and the foundation of the high-voltage transmission line proposed by the present invention; Figure 3 This is a schematic diagram of the overall first bottom-up stereoscopic structure of the connection node device for connecting the angle steel tower and the foundation of a high-voltage transmission line proposed by the present invention; Figure 4 This is a second bottom-up perspective structural diagram of the overall connection node device for connecting the angle steel tower and foundation of a high-voltage transmission line proposed by the present invention; Figure 5 This is a top-view three-dimensional structural diagram of the inclined tension and compression plates and reinforcing ribs of the connection node device connecting the angle steel tower of the high-voltage transmission line and the foundation proposed by the present invention; Figure 6 This is a top-down perspective structural diagram of the traction balancing mechanism of the connection node device connecting the angle steel tower and the foundation of the high-voltage transmission line proposed by the present invention; Figure 7 This is a top-down perspective structural diagram of the angle adjustment mechanism of the connection node device connecting the angle steel tower and the foundation of the high-voltage transmission line proposed by the present invention; Figure 8 This is a schematic diagram of the partial structure of the angle adjustment mechanism of the connection node device connecting the angle steel tower of the high-voltage transmission line and the foundation, and the top three-dimensional structure of the transmission shaft system proposed by the present invention; Figure 9 This is a top-down perspective structural diagram of the fixed limiting mechanism of the connection node device for connecting the angle steel tower and the foundation of a high-voltage transmission line proposed by the present invention.

[0016] In the figure: 1. Top plate; 2. Bottom plate; 3. Inclined tension and pressure plate; 4. Angle adjustment mechanism; 401. First connecting block; 402. First threaded rod; 403. Fixed rod; 404. Pull rod; 405. First movable plate; 406. First bevel gear; 407. Operating rod; 408. Second bevel gear; 5. Fixed limiting mechanism; 501. Third connecting block; 502. Second threaded rod; 503. Second movable plate; 504. Linking rod; 505. Third movable plate; 506. Fourth connecting block; 507. Third threaded rod; 6. Pull-and-balance mechanism; 601. First balance rod; 602. Pull plate; 603. Second balance rod; 7. Reinforcing rib. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0018] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0019] Example, see Figure 1-9 : A connection node device for connecting a high-voltage transmission line angle steel tower to a foundation, comprising a top plate 1, a bottom plate 2, and an inclined tension and compression plate 3, as well as an angle adjustment mechanism 4, a fixed limit mechanism 5, and a traction balance mechanism 6. The inclination angle range of the inclined tension and compression plate 3 is designed to be greater than or equal to 58 degrees and less than 90 degrees: The angle adjustment mechanism 4 includes a first connecting block 401 rotatably connected to one side of the top of the base plate 2, one side of the first connecting block 401 is rotatably connected to a first threaded rod 402, one side of the inclined tension and pressure plate 3 is rotatably connected to a second connecting block, one side of the second connecting block is fixedly connected to a fixing rod 403, one end of the fixing rod 403 is fixedly connected to a first linkage plate, the other side of the first linkage plate is symmetrically fixedly connected to a traction rod 404, the other sides of the two traction rods 404 are fixedly connected to a first movable plate 405, a first threaded hole is opened on the first movable plate 405, the first threaded rod 402 is threadedly sleeved inside the first threaded hole, one end of the first threaded rod 402 is fixedly connected to a first bevel gear 406, the first One side of a connecting block 401 is rotatably connected to an operating rod 407, and one end of the operating rod 407 is fixedly connected to a second bevel gear 408 corresponding to the first bevel gear 406. One side of the second bevel gear 408 is meshed with the first bevel gear 406 for transmission. The rotation of the operating rod 407 drives the rotation of the second bevel gear 408, and at the same time meshes with the first bevel gear 406 for transmission, thereby driving the rotation of the first threaded rod 402. The rotation of the first threaded rod 402 drives the first movable plate 405 to move, and at the same time drives the first linkage plate to move through the traction rod 404, and at the same time drives the second connecting block to move through the fixed rod 403. The movement of the second connecting block drives the inclined tension and pressure plate 3 to adjust the angle; The fixed limiting mechanism 5 includes a third connecting block 501 that is rotatably connected to one side opposite to the top plate 1 and the bottom plate 2, one side of the third connecting block 501 is fixedly connected to a second threaded rod 502, and the second threaded rod 502 is threadedly connected to the second movable plate 503. The two sides of the inclined tension and pressure plate 3 are rotatably connected to the fourth connecting block 506, one side of the fourth connecting block 506 is fixedly connected to a third threaded rod 507, and the third threaded rod 507 is threadedly connected to the third movable plate 505. A connecting rod 504 is fixedly connected between the third movable plate 505 and the second movable plate 503. By rotating the connecting rod 504, the third movable plate 505 and the second movable plate 503 are driven to rotate at the same time. The rotation of the third movable plate 505 and the second movable plate 503 drives the second threaded rod 502 and the third threaded rod 507 to move in relative directions. Through the synchronous movement of the second threaded rod 502 and the third threaded rod 507, the top plate 1 and the bottom plate are respectively fixed and limited in angle with the inclined tension and pressure plate 3; The traction balancing mechanism 6 includes a first balance bar 601 symmetrically connected to the bottom of the top plate 1 for rotation, a second balance bar 603 is rotatably connected to the top of the bottom plate 2, and the two sides of the inclined tension and pressure plate 3 are respectively rotatably connected to the traction plates 602. One end of the first balance bar 601 and the second balance bar 603 are respectively rotatably connected to the two sides of the traction plate 602. When the inclined tension and pressure plate 3 swings, the top plate 1 is driven to move synchronously. When the top plate 1 moves, the traction plate 602 is driven to swing by the first balance bar 601, and the traction plate 602 is limited by the second balance bar 603.

[0020] In the present invention, the top plate 1 and the bottom plate 2 are fixedly connected to the two ends of the inclined tension and compression plate 3 by fastening bolts respectively. A plurality of reinforcing ribs 7 are fixedly connected in an array on the inclined tension and compression plate 3. The cross section of the reinforcing rib 7 is an isosceles trapezoid. The plurality of reinforcing ribs 7 are arranged in sequence with equal intervals from top to bottom. By providing the reinforcing ribs 7, the structural strength of the inclined tension and compression plate 3 can be effectively enhanced, ensuring that the inclined tension and compression plate 3 will not be damaged when subjected to complex loads, significantly extending the service life of the inclined tension and compression plate 3, and providing strong guarantee for the long-term stable operation of the entire device. The first mounting holes are opened at the four corners of the bottom plate 2, and the second mounting holes are opened at the four corners of the top plate 1. The bottom plate 2 is connected to the foundation of the transmission line angle steel tower by anchor bolts, and the top plate 1 is connected to the tower foot plate of the tower foot of the transmission line angle steel tower by connecting bolts.

[0021] Working principle: When in use, the operating rod 407 is rotated, and the meshing transmission between the second bevel gear 408 and the first bevel gear 406 drives the first threaded rod 402 to rotate, so that the first movable plate 405 moves along the first threaded rod 402, and then the second connecting block is pushed by the traction rod 404, the first linkage plate and the fixed rod 403, so as to achieve the angle adjustment of the inclined tension and pressure plate 3; After the angle is adjusted, the rotating linkage rod 504 drives the second movable plate 503 and the third movable plate 505 to rotate synchronously, so that the second threaded rod 502 and the third threaded rod 507 move in relative directions, thereby fixing the adjusted angles of the top plate 1, the bottom plate 2 and the inclined tension and pressure plate 3, and realizing the limit locking of the entire structure; At the same time, when the angle of the inclined tension and compression plate 3 is adjusted to drive the displacement of the top plate 1, the first balance bar 601 pushes the traction plate 602 to swing, and at the same time the second balance bar 603 forms a limit for the traction plate 602. Through the coordinated action of the three, the relative position of the top plate 1 and the bottom plate 2 is automatically adjusted to ensure the overall balance of the structure and avoid stress concentration.

[0022] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A connection node device for connecting a high-voltage transmission line angle steel tower to a foundation, comprising a top plate (1), a bottom plate (2) and an inclined tension and compression plate (3), characterized in that: Also includes: An angle adjustment mechanism (4) is provided between the bottom plate (2) and the inclined tension and pressure plate (3), and is used to adjust the angle of the inclined tension and pressure plate (3) to meet different installation angle requirements; The fixed limiting mechanism (5) is respectively located between the bottom plate (2) and the inclined tension and pressure plate (3) and between the top plate (1) and the inclined tension and pressure plate (3), and is used to perform overall fixed limiting on the device after angle adjustment to ensure structural stability; The traction balancing mechanism (6) is located between the top plate (1) and the bottom plate (2) and is used to automatically adjust the top plate (1) and the bottom plate (2) to maintain a balanced adjustment and avoid stress concentration.

2. The connection node device for connecting the angle steel tower of a high-voltage transmission line to a foundation according to claim 1, characterized in that: The angle adjustment mechanism (4) comprises a first connecting block (401) rotatably connected to one side of the top of the bottom plate (2), one side of the first connecting block (401) being rotatably connected to a first threaded rod (402), and one side of the inclined tension and pressure plate (3) being rotatably connected to a second connecting block, one side of the second connecting block being fixedly connected to a fixed rod (403).

3. The connection node device for connecting the angle steel tower of a high-voltage transmission line to a foundation according to claim 2, characterized in that: One end of the fixed rod (403) is fixedly connected to a first linkage plate, the other side of the first linkage plate is symmetrically fixedly connected to a traction rod (404), the other sides of the two traction rods (404) are fixedly connected to a first movable plate (405), a first threaded hole is provided on the first movable plate (405), and the first threaded rod (402) is threadedly sleeved inside the first threaded hole.

4. The connection node device for connecting the angle steel tower of a high-voltage transmission line to a foundation according to claim 2, characterized in that: One end of the first threaded rod (402) is fixedly connected to the first bevel gear (406), one side of the first connecting block (401) is rotatably connected to the operating rod (407), one end of the operating rod (407) is fixedly connected to the second bevel gear (408) at a position corresponding to the first bevel gear (406), and one side of the second bevel gear (408) is meshed with the first bevel gear (406) for transmission.

5. The connection node device for connecting the angle steel tower and the foundation of a high-voltage transmission line according to claim 1, characterized in that: The fixed limiting mechanism (5) comprises a third connecting block (501) rotatably connected to opposite sides of the top plate (1) and the bottom plate (2), one side of the third connecting block (501) is fixedly connected to a second threaded rod (502), and the second movable plate (503) is threadedly connected to the second threaded rod (502).

6. The connection node device for connecting the angle steel tower and the foundation of a high-voltage transmission line according to claim 5, characterized in that: The two sides of the inclined tension and compression plate (3) are rotatably connected to fourth connecting blocks (506), one side of the fourth connecting block (506) is fixedly connected to a third threaded rod (507), the third threaded rod (507) is threadedly connected to a third movable plate (505), and a connecting rod (504) is fixedly connected between the third movable plate (505) and the second movable plate (503).

7. The connection node device for connecting the angle steel tower and the foundation of a high-voltage transmission line according to claim 1, characterized in that: The traction balancing mechanism (6) comprises a first balancing rod (601) symmetrically connected to the bottom of the top plate (1), a second balancing rod (603) rotatably connected to the top of the bottom plate (2), and traction plates (602) are rotatably connected to both sides of the inclined tension and compression plate (3), and one end of the first balancing rod (601) and the second balancing rod (603) are rotatably connected to both sides of the traction plate (602).

8. The connection node device for connecting the angle steel tower and the foundation of a high-voltage transmission line according to claim 1, characterized in that: The top plate (1) and the bottom plate (2) are fixedly connected to the two ends of the inclined tension and compression plate (3) via fastening bolts respectively.

9. The connection node device for connecting the angle steel tower and the foundation of a high-voltage transmission line according to claim 1, characterized in that: A plurality of reinforcing ribs (7) are fixedly connected in an array to the inclined tension and compression plate (3), and the cross section of the reinforcing ribs (7) is an isosceles trapezoid.

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