A strain type transmission tower buffer connecting device

Abstract

The utility model relates to the technical field of power transmission tower, concretely is a kind of tension type power transmission tower buffer connecting device, including installation base, the upside of installation base is sequentially provided with first connecting plate, second connecting plate and third connecting plate, and buffer assembly is arranged between installation base, first connecting plate, second connecting plate and third connecting plate, buffer assembly includes disc spring, first bidirectional hydraulic damper, first push plate, first fixed plate, second bidirectional hydraulic damper, second push plate and second fixed plate, and the upper surface of third connecting plate is fixedly connected with fixed clamp;Through the buffer of two groups of bidirectional hydraulic damper to lateral and longitudinal swing, disc spring is buffered to vertical vibration, and three-way independent buffering design effectively improves the energy absorption efficiency, to effectively improve the buffer performance to wind pressure, improve the security of fixed clamp, to avoid line fracture, improve the security of circuit transmission.

Description

Technical Field

[0001] This utility model relates to the field of power transmission tower technology, specifically to a tension-resistant power transmission tower buffer connection device. Background Technology

[0002] Tension transmission towers, also known simply as tension towers, are a special type of tower structure used in power lines. Tension transmission towers are generally installed in areas where transmission lines need to be protected against accidents. When a line break or tower collapse occurs, the tension tower can limit the impact of the accident to the area between two adjacent tension towers, preventing the fault from spreading to the entire line section.

[0003] The existing tension towers are directly subjected to the tension of the transmission lines. The transmission lines are directly connected to the connecting frame at the top of the tension tower via insulator strings and U-shaped hooks. During windy weather, the transmission lines will sway from side to side. During the swaying process, the transmission lines will cause the U-shaped hooks and connecting frames to deviate at an angle. Over time, this will cause wear on the U-shaped hooks and connecting frames, resulting in a decrease in the connection strength between the U-shaped hooks and connecting frames and eventual breakage, which will affect the safety of power transmission.

[0004] Therefore, it is necessary to invent a tension-resistant transmission tower buffer connection device to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a tension-resistant transmission tower buffer connection device to solve the problem that the U-shaped hook and connecting frame will wear during the swinging of the transmission line, resulting in a decrease in the connection strength of the U-shaped hook and connecting frame and eventual breakage, which affects the safety of power transmission.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a tension-resistant transmission tower buffer connection device, comprising a mounting base, wherein a first connecting plate, a second connecting plate, and a third connecting plate are sequentially arranged on the upper side of the mounting base, and a buffer assembly is provided between the mounting base, the first connecting plate, the second connecting plate, and the third connecting plate. The buffer assembly includes a disc spring, a first bidirectional hydraulic damper, a first push plate, a first fixing plate, a second bidirectional hydraulic damper, a second push plate, and a second fixing plate, and a fixing clamp is fixedly connected to the upper surface of the third connecting plate.

[0007] By adopting the above technical solution, the lower end of the mounting base is fixed to the crossarm of the tower, the fixing clamp is used to fix the wire, and during use, two sets of bidirectional hydraulic dampers are used to buffer the lateral and longitudinal swing, and the disc spring is used to buffer the vertical vibration. The three-way independent buffer design effectively improves the energy absorption efficiency, thereby effectively improving the buffering performance and improving the safety of line transmission.

[0008] Optionally, the upper and lower ends of the disc spring are fixedly connected to the first connecting plate and the mounting base, respectively. The surface of the mounting base is provided with multiple sets of limiting holes, and the lower surface of the first connecting plate is fixedly connected with multiple sets of connecting rods, which are slidably connected to the limiting holes.

[0009] By adopting the above technical solution, the disc spring is used to buffer the vertical vibration of the fixing clamp, while the connecting rod slides inside the limiting hole to position the fixing clamp.

[0010] Optionally, the first bidirectional hydraulic damper is longitudinally mounted at the middle position of the upper surface of the first connecting plate, and both ends of the piston rod in the first bidirectional hydraulic damper are fixedly connected to the first push plate.

[0011] By adopting the above technical solution, the first bidirectional hydraulic damper is fixed to the surface of the first connecting plate by multiple sets of screws. The first bidirectional hydraulic damper is used to buffer the longitudinal wind pressure.

[0012] Optionally, a first connecting frame is fixedly connected to both the left and right sides of the upper surface of the first connecting plate, and a first positioning groove is provided in the middle of the first connecting frame.

[0013] By adopting the above technical solution, the first connecting frame and the first connecting plate are fixed together by bolts.

[0014] Optionally, a first fixing plate is fixedly connected to both the front and rear ends of the lower surface of the second connecting plate, the first push plate is fixedly connected to the first fixing plate, and a first positioning block is fixedly connected to both the left and right sides of the lower surface of the second connecting plate, the first positioning block being slidably connected to the first positioning groove.

[0015] By adopting the above technical solution, the longitudinal air pressure is transmitted to the first push plate through the first fixed plate, which in turn drives the piston rod to slide inside the cylinder to buffer the air pressure. At the same time, the first positioning block slides in the first positioning groove to improve the stability of the fixed clamp.

[0016] Optionally, the second bidirectional hydraulic damper is horizontally mounted at the middle position of the upper surface of the second connecting plate, and the piston rod of the second bidirectional hydraulic damper is fixedly connected to the second push plate at both ends.

[0017] By adopting the above technical solution, the second bidirectional hydraulic damper is fixed to the surface of the second connecting plate by multiple sets of screws. The second bidirectional hydraulic damper is used to buffer the lateral wind pressure.

[0018] Optionally, a second connecting frame is fixedly connected to both the front and rear sides of the upper surface of the second connecting plate, and a second positioning groove is provided in the middle of the second connecting frame.

[0019] By adopting the above technical solution, the second connecting frame is fixed by fixing bolts.

[0020] Optionally, a second fixing plate is fixedly connected to both the left and right ends of the lower surface of the third connecting plate, the second fixing plate is fixedly connected to the second push plate, and a second positioning block is fixedly connected to both the front and rear sides of the lower surface of the third connecting plate, the second positioning block is slidably connected to the second positioning groove.

[0021] By adopting the above technical solution, the lateral wind pressure is transmitted to the second push plate through the second fixed plate, which in turn drives the piston rod to slide inside the cylinder to buffer the wind pressure.

[0022] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0023] 1. This utility model uses two sets of bidirectional hydraulic dampers to buffer the lateral and longitudinal swaying, and disc springs to buffer the vertical vibration. The three-way independent buffering design effectively improves the energy absorption efficiency, thereby effectively improving the buffering performance against wind pressure, improving the safety of the fixing clamp, and thus avoiding line breakage and improving the safety of circuit transmission.

[0024] 2. This utility model allows the connecting rod to slide up and down within the limiting hole, the first positioning block to slide longitudinally within the first positioning groove, and the second positioning block to slide laterally within the second positioning groove, effectively improving the stability of the fixing clamp during the sliding process. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall connection structure of this utility model;

[0026] Figure 2 This is a schematic diagram of the overall separated structure of this utility model;

[0027] Figure 3 This is a schematic diagram of the first connecting plate structure of this utility model;

[0028] Figure 4 This is a schematic diagram of the second connecting plate structure of this utility model;

[0029] Figure 5 This is a schematic diagram of the third connecting plate structure of this utility model.

[0030] Explanation of reference numerals in the attached figures:

[0031] 1. Mounting base; 11. Disc spring; 12. Limiting hole; 2. First connecting plate; 21. Connecting rod; 22. First bidirectional hydraulic damper; 23. First push plate; 24. First connecting frame; 25. First positioning groove; 3. Second connecting plate; 31. First positioning block; 32. First fixing plate; 33. Second bidirectional hydraulic damper; 34. Second push plate; 35. Second connecting frame; 36. Second positioning groove; 4. Third connecting plate; 41. Second positioning block; 42. Second fixing plate; 5. Fixing clamp. Detailed Implementation

[0032] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0033] This utility model provides, for example Figure 1 and Figure 2 The tension-resistant transmission tower buffer connection device shown includes a mounting base 1. A first connecting plate 2, a second connecting plate 3, and a third connecting plate 4 are sequentially arranged on the upper side of the mounting base 1. A buffer assembly is arranged between the mounting base 1, the first connecting plate 2, the second connecting plate 3, and the third connecting plate 4. The buffer assembly includes a disc spring 11, a first bidirectional hydraulic damper 22, a first push plate 23, a first fixing plate 32, a second bidirectional hydraulic damper 33, a second push plate 34, and a second fixing plate 42. A fixing clip 5 is fixedly connected to the upper surface of the third connecting plate 4.

[0034] The bidirectional hydraulic cylinder damper contains a piston block. The piston block and piston rod interact with the damping oil inside the cylinder. When the structure is displaced, the piston block moves inside the cylinder, forcing the damping oil through narrow channels or valves. This process generates resistance, thereby consuming the kinetic energy of the structure and ultimately suppressing vibration. Unlike unidirectional dampers, bidirectional dampers can provide damping force when the structure moves in any direction. During use, the two sets of vertical bidirectional hydraulic dampers can buffer the lateral and longitudinal wind pressure, and work with the disc spring 11 to buffer the vertical vibration, effectively improving the buffering effect of the fixed clamp 5 and extending the service life of the equipment.

[0035] participate Figure 2 and Figure 3 The upper and lower ends of the disc spring 11 are fixedly connected to the first connecting plate 2 and the mounting base 1, respectively. Multiple sets of limiting holes 12 are opened on the surface of the mounting base 1. Multiple sets of connecting rods 21 are fixedly connected to the lower surface of the first connecting plate 2. The connecting rods 21 are slidably connected to the limiting holes 12.

[0036] Specifically, when the line swings up and down, causing the fixing clamp 5 to vibrate up and down, the fixing clamp 5 will drive the third connecting plate 4, the second connecting plate 3 and the first connecting plate 2 to vibrate up and down, thereby applying pressure to the disc spring 11. The disc spring 11 absorbs and buffers the vertical vibration, reducing the wear between the line and the fixing clamp 5. At the same time, the connecting rod 21 will slide up and down inside the limiting hole 12, improving the stability of the fixing clamp 5 and preventing it from tipping over.

[0037] See Figure 3 and Figure 4 The first bidirectional hydraulic damper 22 is longitudinally installed at the middle position of the upper surface of the first connecting plate 2. The piston rod of the first bidirectional hydraulic damper 22 is fixedly connected to both ends of the first push plate 23. The left and right sides of the upper surface of the first connecting plate 2 are fixedly connected to the first connecting frame 24. The middle of the first connecting frame 24 is provided with the first positioning groove 25. The front and rear ends of the lower surface of the second connecting plate 3 are fixedly connected to the first fixing plate 32. The first push plate 23 is fixedly connected to the first fixing plate 32. The left and right sides of the lower surface of the second connecting plate 3 are fixedly connected to the first positioning block 31. The first positioning block 31 is slidably connected to the first positioning groove 25.

[0038] In addition, when the line is blown by the longitudinal airflow and swings longitudinally, it will cause the fixing clamp 5 to swing longitudinally, which in turn will cause the second connecting plate 3 to swing longitudinally through the third connecting plate 4. At this time, the second connecting plate 3, through the cooperation of the first fixing plate 32 and the first push plate 23, will drive the piston rod to slide longitudinally inside the first bidirectional hydraulic damper 22 to buffer the longitudinal wind pressure. At the same time, the first positioning block 31 slides inside the first positioning groove 25 to limit the longitudinal movement of the fixing clamp 5.

[0039] See Figure 4 and Figure 5 The second bidirectional hydraulic damper 33 is horizontally installed in the middle of the upper surface of the second connecting plate 3. The piston rod of the second bidirectional hydraulic damper 33 is fixedly connected to the two ends of the piston rod with the second push plate 34. The front and rear sides of the upper surface of the second connecting plate 3 are fixedly connected to the second connecting frame 35. The middle of the second connecting frame 35 is provided with the second positioning groove 36. The left and right ends of the lower surface of the third connecting plate 4 are fixedly connected to the second fixing plate 42. The second fixing plate 42 is fixedly connected to the second push plate 34. The front and rear sides of the lower surface of the third connecting plate 4 are fixedly connected to the second positioning block 41. The second positioning block 41 is slidably connected to the second positioning groove 36.

[0040] It should be added that when the line is blown by the lateral airflow and swings laterally, it will cause the fixing clamp 5 to swing laterally, which in turn will drive the third connecting plate 4. At this time, the third connecting plate 4, through the cooperation of the second fixing plate 42 and the second push plate 34, drives the piston rod to slide laterally inside the second bidirectional hydraulic damper 33 to buffer the wind pressure generated laterally. At the same time, the second positioning block 41 slides inside the second positioning groove 36 to limit the fixing clamp 5 laterally.

[0041] The working principle of this utility model is as follows: two sets of first bidirectional hydraulic dampers 22 and second bidirectional hydraulic dampers 33 buffer the longitudinal and lateral swings, and the disc spring 11 buffers the vertical vibration. The three-way independent buffering design effectively improves the energy absorption efficiency, thereby effectively improving the buffering performance against wind pressure, improving the safety of the fixing clamp 5, and thus avoiding line breakage and improving the safety of circuit transmission. At the same time, the connecting rod 21 slides up and down in the limiting hole 12, the first positioning block 31 slides longitudinally in the first positioning groove 25, and the second positioning block 41 slides laterally in the second positioning groove 36, which effectively improves the stability of the fixing clamp 5 during the sliding process.

[0042] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A strain tower buffer connecting device, comprising a mounting base (1), characterized in that: The upper side of the mounting base (1) is provided with a first connecting plate (2), a second connecting plate (3) and a third connecting plate (4) in sequence. A buffer assembly is provided between the mounting base (1), the first connecting plate (2), the second connecting plate (3) and the third connecting plate (4). The buffer assembly includes a disc spring (11), a first bidirectional hydraulic damper (22), a first push plate (23), a first fixing plate (32), a second bidirectional hydraulic damper (33), a second push plate (34) and a second fixing plate (42). A fixing clip (5) is fixedly connected to the upper surface of the third connecting plate (4).

2. The tension-resistant transmission tower buffer connection device according to claim 1, characterized in that: The upper and lower ends of the disc spring (11) are fixedly connected to the first connecting plate (2) and the mounting base (1) respectively. The surface of the mounting base (1) is provided with multiple sets of limiting holes (12). Multiple sets of connecting rods (21) are fixedly connected to the lower surface of the first connecting plate (2). The connecting rods (21) are slidably connected to the limiting holes (12).

3. The tension-resistant transmission tower buffer connection device according to claim 1, characterized in that: The first bidirectional hydraulic damper (22) is longitudinally installed at the middle position of the upper surface of the first connecting plate (2), and the piston rod of the first bidirectional hydraulic damper (22) is fixedly connected to the first push plate (23) at both ends.

4. The tension-resistant transmission tower buffer connection device according to claim 3, characterized in that: The first connecting plate (2) has a first connecting frame (24) fixedly connected to both the left and right sides of its upper surface, and a first positioning groove (25) is provided in the middle of the first connecting frame (24).

5. A tension-resistant transmission tower buffer connection device according to claim 4, characterized in that: The front and rear ends of the lower surface of the second connecting plate (3) are fixedly connected to the first fixing plate (32), the first push plate (23) is fixedly connected to the first fixing plate (32), the left and right sides of the lower surface of the second connecting plate (3) are fixedly connected to the first positioning block (31), and the first positioning block (31) is slidably connected to the first positioning groove (25).

6. The tension-resistant transmission tower buffer connection device according to claim 1, characterized in that: The second bidirectional hydraulic damper (33) is horizontally installed at the middle position of the upper surface of the second connecting plate (3). The piston rod of the second bidirectional hydraulic damper (33) is fixedly connected to the two ends of the piston rod by the second push plate (34).

7. A tension-resistant transmission tower buffer connection device according to claim 6, characterized in that: The front and rear sides of the upper surface of the second connecting plate (3) are fixedly connected to the second connecting frame (35), and the middle part of the second connecting frame (35) is provided with the second positioning groove (36).

8. A tension-resistant transmission tower buffer connection device according to claim 7, characterized in that: The lower surface of the third connecting plate (4) is fixedly connected to the left and right ends of the second fixing plate (42), the second fixing plate (42) is fixedly connected to the second push plate (34), and the lower surface of the third connecting plate (4) is fixedly connected to the front and rear sides of the second positioning block (41), the second positioning block (41) is slidably connected to the second positioning groove (36).

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