Vibration reduction spacing device of multi-union insulator chain

Abstract

The invention belongs to the field of overhead transmission lines of power systems, and relates to a vibration damping spacing device for multiple insulator strings, which comprises a horizontal vibration damping connecting component connected with the insulator strings in the horizontal direction, and the horizontal vibration damping connecting component comprises a connecting plate, a first vibration damping assembly, a second vibration damping assembly and a third vibration damping assembly. The upper portions and the lower portions of the ends, close to each other, of the two connecting plates are movably connected with one end of a first vibration reduction assembly, the other end of the first vibration reduction assembly is movably connected with small triangular plates, a second vibration reduction assembly is movably connected between the two small triangular plates, and the two sides of the second vibration reduction assembly are movably connected with one ends of two third vibration reduction assemblies. And the other end of the third vibration reduction assembly is movably connected with one side of the first vibration reduction assembly, so that a triangular structure is formed among the three vibration reduction assemblies. According to the invention, the absorption efficiency of vibration energy is high, and the vibration reduction effect is better especially for large-amplitude vibration and swing between multiple insulator strings.

Description

Technical Field

[0001] The invention relates to the field of overhead power transmission lines of power systems, and in particular to a vibration reduction spacing device for a multi-connected insulator string. Background Art

[0002] Insulator strings are used to suspend conductors and insulate conductors, towers and the ground, and are one of the key devices in transmission lines. However, due to climate change and increasing windy weather, the mutual swing between multiple insulator strings poses a serious threat to safe operation. Therefore, it is necessary to use insulator string spacing devices to achieve vibration prevention between insulator strings and improve the operating stability of insulators.

[0003] After searching, the patent document with the authorization announcement number CN106711904B discloses a vibration-damping spacer for an insulator string, which absorbs the swing energy transmitted from the insulator string simultaneously through a vibration-damping spring and a vibration-damping assembly. The vibration-damping spring absorbs energy through the extension and compression of the spring; the I-shaped rod in the vibration-damping assembly pushes the damping rubber and the moving part to produce elastic deformation under the drive of wind to absorb the internal energy loss, and the unconsumed power transmission line swing energy is transmitted to the moving part through the damping rubber, and the swing energy in the line is attenuated and consumed through the relative movement between the friction plate on the side of the moving part and the damping cover.

[0004] Although the above patent can reduce vibrations between the swings of multiple insulator strings, its vibration reduction effect is not very good. The vibration reduction spring is exposed to the air. Due to the swings between the insulator strings, the vibration reduction spring will be in a repeated state of stretching and compression. Over time, the life of the vibration reduction spring will be greatly reduced, and the vibration reduction spring is prone to rust and failure. It only relies on the vibration reduction spring and the vibration reduction component to absorb the swing energy, and the absorption efficiency is low. For large swings, the vibration reduction effect is not very good.

[0005] Therefore, there is an urgent need for a vibration reduction device with better vibration reduction effect to solve the above problems. Summary of the invention

[0006] The object of the present invention is to provide a vibration reduction spacer for a multi-connected insulator string, which solves the problem that the existing vibration reduction device has a poor vibration reduction effect.

[0007] The present invention is achieved through the following technical solutions: The invention discloses a vibration reduction spacing device for a multi-connected insulator string, comprising a large triangular plate, II-shaped insulator string components vertically arranged at both ends of the large triangular plate, and a horizontal vibration reduction connecting member connecting the insulator strings in the horizontal direction; The horizontal vibration-damping connecting member comprises a connecting plate, a first vibration-damping assembly, a second vibration-damping assembly and a third vibration-damping assembly; The connecting plate is movably connected between two insulator strings located at the same end of the large triangular plate, and the upper and lower parts of the ends of the two connecting plates close to each other are movably connected to one end of the first vibration damping assembly, and the other end of the first vibration damping assembly is movably connected to a small triangular plate, and the two small triangular plates are movably connected to the second vibration damping assembly, and both sides of the second vibration damping assembly are movably connected to one end of two third vibration damping assemblies, and the other end of the third vibration damping assembly is movably connected to one side of the first vibration damping assembly, so that a triangular structure is formed between the first vibration damping assembly, the second vibration damping assembly and the third vibration damping assembly.

[0008] Further, the first vibration reduction assembly includes a first sleeve shell and a first cover plate, the first cover plate is installed at the opening of the first sleeve shell, and a first baffle is slidably provided in the first sleeve shell; One side of the first baffle is connected to a first movable rod, and the other side is connected to a guide rod; The first movable rod passes through the first cover plate and extends to the outside of the first sleeve shell. A first damping spring sleeved on the outer surface of the guide rod is connected between the first baffle plate and the inner wall of the first sleeve shell.

[0009] Further, the second vibration reduction assembly includes a second sleeve shell and a second movable rod slidably mounted in the second sleeve shell, and a second baffle slidably mounted in the second sleeve shell is mounted at the end of the second movable rod; The second baffle plate is provided with a flow limiting hole and a plurality of oil limiting holes along the axial direction; A movable block is slidably disposed inside the second movable rod, and a blocking needle capable of blocking the flow-limiting hole is installed on a side of the movable block close to the second baffle; A second damping spring is connected between the side of the movable block away from the second baffle and the inner wall of the second movable rod; An oil cavity is formed between the inner wall of the second sleeve shell and the second baffle plate, and an air cavity is formed between the inner wall of the second movable rod and the second baffle plate.

[0010] Furthermore, an air charging valve is provided on the outer wall of the second movable rod, and an oil inlet valve is provided on the outer wall of the other end of the second sleeve shell; The diameter of the flow limiting hole is larger than the oil limiting hole.

[0011] Furthermore, a second sealing ring is provided between one end of the second sleeve shell and the outer wall of the second movable rod; A static sealing ring is also provided between the second sleeve shell and the outer wall of the second movable rod. The static sealing ring is installed tightly against the second sealing ring. A spring pressure ring is provided between the second baffle and the static sealing ring. The spring pressure ring is sleeved on the second movable rod.

[0012] Further, the third vibration reduction assembly comprises a third sleeve shell and a second cover plate, the second cover plate is installed at the opening of the third sleeve shell, and a third baffle is slidably installed in the third sleeve shell; A third movable rod is connected to one side of the third baffle plate, and the third movable rod penetrates the second cover plate and extends to the outside of the third sleeve shell; A third damping spring is connected between the inner wall of the third movable rod and the inner wall of the third sleeve shell, and a fourth damping spring sleeved on the outer surface of the third movable rod is connected between the second cover plate and the third baffle plate.

[0013] Furthermore, a first sealing ring is provided between the first cover plate and the first movable rod, and between the second cover plate and the third movable rod; the first sealing ring is an I-shaped structure.

[0014] Furthermore, the upper end of the connecting plate is connected to the lower end of the insulator string through a bowl head hanging plate, and the lower end of the connecting plate is connected to the upper end of the insulator string through a ball head hanging plate.

[0015] Furthermore, the large triangular plate is connected to the upper end of the insulator string through a first right-angle hanging plate, and the wire clamp is connected to the lower end of the connecting plate through a second right-angle hanging plate.

[0016] Compared with the prior art, the present invention has the following beneficial technical effects: The invention discloses a vibration reduction spacing device for a multi-insulator string, comprising a horizontal vibration reduction connecting member, the horizontal vibration reduction connecting member comprising a connecting plate, a first vibration reduction assembly, a second vibration reduction assembly and a third vibration reduction assembly, the upper and lower parts of one end of two connecting plates close to each other are both movably connected to one end of the first vibration reduction assembly, the other end of the first vibration reduction assembly is movably connected to a small triangular plate, the second vibration reduction assembly is movably connected between the two small triangular plates, both sides of the second vibration reduction assembly are movably connected to one end of two third vibration reduction assemblies, and the other end of the third vibration reduction assembly is movably connected to one side of the first vibration reduction assembly, so that a triangular structure is formed between the first vibration reduction assembly, the second vibration reduction assembly and the third vibration reduction assembly. Through the cooperation of the first vibration reduction component, the second vibration reduction component and the third vibration reduction component, when oscillation occurs between the insulator strings, the first vibration reduction component stretches or contracts, the oil moves back and forth in the second vibration reduction component, and the third vibration reduction component stretches or contracts, so that the swing energy is absorbed efficiently, especially for large-amplitude swings, and the vibration reduction effect is better, which effectively absorbs the oscillation between the insulator strings and ensures the safe use of the power supply network; It has a good effect on suppressing the swing between multiple insulator strings, and can effectively prevent the damage to the transmission line caused by the vibration and mutual whipping between the insulator strings, thereby improving the integrity of the insulator strings and increasing the safe use range of the insulator strings; It can protect the spring, greatly increasing its service life and preventing it from being exposed to the air, which would cause the spring to rust and fail over time.

[0017] Furthermore, in the first vibration reduction assembly, the first damping spring has a large expansion space in the first sleeve shell and can withstand pressure or tension. The guide rod can move axially along the first damping spring. The first baffle can prevent the first damping spring from bearing excessive tension and absorb swing energy.

[0018] Furthermore, in the compression stroke of the second vibration damping component, the oil pressure in the oil chamber increases, the movable block is lifted, and the flow limiting hole is opened. The hydraulic oil can flow from the oil chamber to the air chamber through not only the flow limiting hole but also the oil limiting hole, so that it does not generate oil resistance or generates less oil resistance, and mainly consumes energy by gas compression work; in the extension stroke, the oil is pressed back by the gas, pressing the movable block back, so that the flow limiting hole is closed, and the oil can only flow from the oil limiting hole through the air chamber back to the oil chamber, forming a larger blocking effect and generating a larger damping force, thereby increasing energy consumption. The second vibration damping component ensures the energy consumption of the entire process through repeated compression and extension, thereby making the swing between the insulator strings more stable, safer and more reliable.

[0019] Furthermore, the third damping spring is connected between the inner wall of the third movable rod and the inner wall of the third sleeve shell, and the fourth damping spring is installed on the outside of the third movable rod, so as to ensure the stability of the connection between the two damping springs. The third damping spring is responsible for energy consumption and vibration reduction. The fourth damping spring further improves the vibration reduction effect, accelerates energy consumption, and can effectively absorb the vibration between the insulator strings, thereby ensuring the safe use of the power supply network.

[0020] Furthermore, the first sealing ring is an I-shaped structure, which can effectively prevent rain and dust from entering the first sleeve shell and the third sleeve shell, thereby increasing the service life of the first vibration damping assembly and the third vibration damping assembly. In this way, it can effectively avoid the displacement of the first sealing ring during the extension and contraction of the first vibration damping assembly and the third vibration damping assembly, thereby improving the stability and reliability of the use of the first vibration damping assembly and the third vibration damping assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 yes Figure 1 A schematic diagram of the enlarged structure at A in the middle; Figure 3 yes Figure 1 A schematic diagram of the enlarged structure at B in the middle; Figure 4 is a schematic cross-sectional structural diagram of the first vibration reduction assembly of the present invention; Figure 5 is a front cross-sectional structural schematic diagram of the second vibration reduction assembly of the present invention; Figure 6 yes Figure 5 Schematic diagram of the enlarged structure at C in the middle; Figure 7 is a bottom view structural schematic diagram of the second baffle of the present invention; Figure 8 It is a schematic cross-sectional structure diagram of the third vibration reduction assembly of the present invention.

[0022] Markings in the figure: 1. Large triangle plate; 2. Insulator string; 3. Connecting plate; 4. Wire clamp; 5. Connecting plate; 6. First vibration reduction assembly; 61. First sleeve shell; 62. First movable rod; 63. First baffle plate; 64. First damping spring; 65. Guide rod; 66. First cover plate; 7. Second vibration reduction assembly; 71. Second sleeve shell; 711. Oil chamber; 712. Oil inlet valve; 72. Second movable rod; 721. Air chamber; 722. Inflating valve; 73. Second baffle; 731. Flow limiting hole; 732. Oil limiting hole; 74. Movable block; 75. Blocking needle; 76. Second damping spring; 77. Second sealing ring; 78. Static sealing ring; 79. Spring pressure ring; 80. Baffle sealing ring; 8. third vibration reduction assembly; 81. third sleeve shell; 82. third movable rod; 83. third baffle plate; 84. third damping spring; 85. fourth damping spring; 86. second cover plate; 9. Small triangular plate; 10. First sealing ring; 11. Bowl head hanging plate; 12. Ball head hanging plate; 13. First right angle hanging plate; 14. Second right angle hanging plate; 15. Fixed plate; 16. Bracket connecting rod; 17. Pressure equalizing ring; 18. Horizontal vibration reduction connecting component. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the present invention more clear, the following is further described in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention, that is, the embodiments described are only part of the embodiments of the present invention, not all embodiments.

[0024] The components described and shown in the drawings and embodiments of the present invention may be arranged and designed in various configurations. Therefore, the detailed description of the embodiments of the present invention provided in the following drawings is not intended to limit the scope of the claimed invention, but merely represents a selected embodiment of the present invention. Based on the drawings and embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0025] It should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the 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 orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0026] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] In the description of the present invention, “plurality” means two or more than two, unless otherwise clearly and specifically defined.

[0028] The present invention provides a vibration reduction spacer device for an insulator string, referring to Figures 1 to 3 The insulator string includes a large triangular plate 1, a II-shaped insulator string assembly vertically arranged at both ends of the large triangular plate 1 and composed of two insulator strings 2, a connecting plate 3 and a wire clamp 4 connected in series, and a horizontal vibration-damping connecting member 18 connecting the insulator strings 2 in the horizontal direction.

[0029] like Figure 3 As shown, the horizontal vibration-damping connecting member 18 includes a connecting plate 5, a first vibration-damping assembly 6, a second vibration-damping assembly 7 and a third vibration-damping assembly 8; two connecting plates 5 are provided, and the connecting plates 5 are movably connected between two insulator strings 2 located at the same end of the large triangular plate 1, and the upper and lower parts of the ends of the two connecting plates 5 close to each other are movably connected to one end of the first vibration-damping assembly 6, and the other end of the first vibration-damping assembly 6 is movably connected to a small triangular plate 9, and a second vibration-damping assembly 7 is movably connected between the two small triangular plates 9, and both sides of the second vibration-damping assembly 7 are movably connected to one end of two third vibration-damping assemblies 8, and the other end of the third vibration-damping assembly 8 is movably connected to one side of the first vibration-damping assembly 6, so that a triangular structure is formed between the first vibration-damping assembly 6, the second vibration-damping assembly 7 and the third vibration-damping assembly 8, thereby improving stability, being able to better absorb swinging energy, and achieving a better vibration-damping effect.

[0030] Specifically, Figure 1As shown, the insulator string 2 is composed of insulators connected end to end in series, the insulator is an inverted umbrella-shaped structure, the upper end of which is provided with a fixing groove, and the lower end is provided with a convex head, and the fixing groove and the convex head cooperate with each other; the insulator string 2 is an insulating string made of glass or ceramic; the upper end of the insulator string 2 is provided with a fixing piece, and the lower end of the insulator string 2 is provided with a connecting piece; the insulator string 2 is radially provided with a grading ring 17, and the grading ring 17 is supported by a W-shaped bracket connecting rod 16, and the two ends of the bracket connecting rod 16 are respectively connected to the grading ring 17 and the connecting plate 3. The two ends of the connecting plate 3 are respectively connected to the fixing plate 15 by bolts, and the fixing plate 15 at the upper end of the connecting plate 3 is connected to the connecting piece at the lower end of the insulator string 2.

[0031] One end of the connecting plate 5 connected to the first vibration damping assembly 6 is V-shaped, and a plurality of fixing holes are provided on the V-shaped edge. The first vibration damping assembly 6 is connected to a group of fixing holes symmetrically arranged on the V-shaped edges of the two connecting plates 5 .

[0032] There are four first vibration reduction assemblies 6, one second vibration reduction assembly 7, and four third vibration reduction assemblies 8. Both ends of the first vibration reduction assembly 6, the second vibration reduction assembly 7, and the third vibration reduction assembly 8 are provided with connecting seats for easy connection; both ends of the two small triangular plates 9 are respectively hinged to one end of the first vibration reduction assembly 6, and the opposite ends of the two small triangular plates 9 are respectively hinged to one end of the second vibration reduction assembly 7; Among them, refer to Figure 1 and Figure 2 In this embodiment, the upper end of the connecting plate 5 is connected to the lower end of the insulator string 2 through a bowl head hanging plate 11, and the lower end of the connecting plate 5 is connected to the upper end of another insulator string 2 through a ball head hanging plate 12.

[0033] Specifically, one end of the connecting plate 5 connected to the lower end of the insulator string 2 and the upper end of the insulator string 2 is rectangular; the bowl head hanging plate 11 and the ball head hanging plate 12 are prior arts and will not be described in detail here.

[0034] Reference Figure 1 In this embodiment, the large triangular plate 1 is connected to the upper end of the insulator string 2 through the first right-angle hanging plate 13, and the wire clamp 4 is connected to the lower end of the connecting plate 3 through the second right-angle hanging plate 14.

[0035] Specifically, the large triangle plate 1 is connected to the fixing piece at the upper end of the insulator string 2 through the first right-angle hanging plate 13 ; the wire clamp 4 is connected to the fixing plate 15 at the lower end of the connecting plate 3 through the second right-angle hanging plate 14 .

[0036] Reference Figure 4In this embodiment, the first vibration reduction assembly 6 includes a first sleeve shell 61 and a first cover plate 66. The first cover plate 66 is installed at the opening of the first sleeve shell 61. A first baffle plate 63 is slidably provided in the first sleeve shell 61. A first movable rod 62 is connected to one side of the first baffle plate 63, and a guide rod 65 is connected to the other side of the first baffle plate 63. The first movable rod 62 passes through the first cover plate 66 and extends to the outside of the first sleeve shell 61. A first damping spring 64 which is sleeved on the outer surface of the guide rod 65 is connected between the first baffle plate 63 and the inner wall of the first sleeve shell 61.

[0037] Specifically, the first cover plate 66 and the first sleeve shell 61 can be connected by threads, and a sealing rubber pad is provided between the first cover plate 66 and the first sleeve shell 61; the first movable rod 62 and the first cover plate 66 are slidingly connected; a connecting seat is provided on the side of the first sleeve shell 61 away from the first cover plate 66, and a connecting seat is provided on the side of the first movable rod 62 away from the first baffle 63, one of the connecting seats is hinged to the connecting plate 5, and the other connecting seat is hinged to the small triangular plate 9; the first damping spring 64 has a large expansion space in the first sleeve shell 61 and can withstand pressure or tension. The guide rod 65 can move axially along the first damping spring 64, and the first baffle 63 can organize the first damping spring 64 to withstand excessive tension and absorb swinging energy.

[0038] Reference Figure 5-Figure 7 In this embodiment, the second vibration damping assembly 7 includes a second sleeve shell 71 and a second movable rod 72 slidably installed in the second sleeve shell 71, the second movable rod 72 is installed with a second baffle plate 73 slidably arranged in the second sleeve shell 71, the second baffle plate 73 is axially provided with a limiting flow hole 731 and a plurality of oil limiting holes 732, a movable block 74 is slidably arranged in the second movable rod 72, a blocking needle 75 capable of blocking the limiting flow hole 731 is installed on the side of the movable block 74 close to the second baffle plate 73, and a second damping spring 76 is connected between the side of the movable block 74 away from the second baffle plate 73 and the inner wall of the second movable rod 72.

[0039] Specifically, Figure 7 As shown, there is one flow limiting hole 731 located at the axis of the second baffle 73; the number of oil limiting holes 732 is 2-4, which are evenly arranged on the second baffle 73 along the axis; in this example, the number of oil limiting holes 732 is 4.

[0040] The second movable rod 72 is hollow inside, and the movable block 74 can slide along the inner cavity of the second movable rod 72; the preload force of the second damping spring 76 should be sufficient to ensure that the oil pressure can lift the movable block 74 and compress the second damping spring 76 when the second shock absorbing assembly 7 is compressed to a predetermined position, thereby opening the flow limiting hole 731; the diameter of the flow limiting hole 731 is larger than that of the oil limiting hole 732; a connecting seat is provided on the side of the second sleeve shell 71 away from the second baffle plate 73 and the side of the second movable rod 72 away from the second baffle plate 73, and the two connecting seats are respectively hinged to the opposite ends of the two small triangular plates 9.

[0041] Among them, refer to Figure 5 and Figure 6 In this embodiment, an oil chamber 711 is formed between the inner wall of the second sleeve shell 71 and the movable block 74 , and an air chamber 721 is formed between the inner wall of the second movable rod 72 and the movable block 74 .

[0042] Specifically, when the second vibration damping assembly 7 is compressed or extended normally, the oil flows between the oil cavity 711 and the air cavity 721 through the oil limiting hole 732, forming a damping effect and increasing energy consumption, thereby making the swing between the insulator strings 2 more stable, safer and more reliable.

[0043] Reference Figure 5 and Figure 6 In this embodiment, the second baffle 73 is connected to one end of the second movable rod 72, and an inflation valve 722 is provided on the outer wall of the other end of the second movable rod 72. The air cavity 721 is inflated through the inflation valve 722 to discharge all the air inside the air cavity 721; a second sealing ring 77 is provided between one end of the second sleeve shell 71 and the outer wall of the second movable rod 72, which mainly prevents dust from entering the second sleeve shell 71. The second sealing ring 77 is fixedly connected to the second sleeve shell 71 by screws, and an oil inlet valve 712 is provided on the outer wall of the other end of the second sleeve shell 71. The oil cavity 711 is filled with oil through the oil inlet valve 712, and the oil is hydraulic oil.

[0044] The filling gas is an inert gas, preferably nitrogen.

[0045] During the installation of the second vibration damping assembly 7, the second vibration damping assembly 7 is in a compressed state. It is first inflated to expel all the air inside the air cavity 721, and then oil is added until the oil is added to a specified plane while keeping the second vibration damping assembly 7 in a compressed state. Thereafter, the air cavity 721 is pressurized through the inflation valve 722 to a specified pressure while keeping the second vibration damping assembly 7 in a compressed state.

[0046] Reference Figure 5 and Figure 6In this embodiment, a static sealing ring 78 is further provided between the outer wall of the second sleeve shell 71 and the second movable rod 72. The static sealing ring 78 mainly prevents oil leakage. The static sealing ring 78 is installed close to the second sealing ring 77. A spring pressure ring 79 is provided between the second baffle plate 73 and the static sealing ring 78. The spring pressure ring 79 is sleeved on the second movable rod 72 to avoid direct metal collision between the second baffle plate 73 and the end face of the static sealing ring 78 when the second vibration damping assembly 7 is over-extended, thereby playing a buffering and protective role and improving the service life of the second vibration damping assembly 7.

[0047] Specifically, a baffle sealing ring 80 is provided on the outer peripheral surface of the second baffle 73 to form a seal between the oil chamber 711 and the second baffle 73 . The baffle sealing ring 80 fits tightly with the inner cavity of the second sleeve shell 71 to ensure that the second baffle 73 can slide freely in the second sleeve shell 71 .

[0048] During the compression stroke of the second vibration damping component 7, the oil pressure in the oil chamber 711 increases, the movable block 74 is lifted, and the flow limiting hole 731 is opened. The hydraulic oil can not only pass through the flow limiting hole 731, but also pass through the oil limiting hole 732, and flow from the oil chamber 711 to the air chamber 721, so that it does not generate oil resistance or generates less oil resistance, and mainly consumes energy by gas compression work; during the extension stroke, the oil is pressed back by the gas, pressing the movable block 74 back, so that the flow limiting hole 731 is closed, and the oil can only flow from the oil limiting hole 732 through the air chamber 721 back to the oil chamber 711, forming a larger blocking effect and generating a larger damping force, thereby increasing energy consumption. The second vibration damping component 7 ensures the energy consumption of the entire process through repeated compression and extension, so that the swing between the insulator strings 2 is more stable, safer and more reliable.

[0049] Reference Figure 8 In the present embodiment, the third vibration damping assembly 8 comprises a third sleeve shell 81 and a second cover plate 86, wherein the second cover plate 86 is installed at the opening of the third sleeve shell 81, a third baffle plate 83 is slidably installed in the third sleeve shell 81, a third movable rod 82 is connected to one side of the third baffle plate 83, the third movable rod 82 passes through the second cover plate 86 and extends to the outside of the third sleeve shell 81, a third damping spring 84 is connected between the inner wall of the third movable rod 82 and the inner wall of the third sleeve shell 81, and a fourth damping spring 85 which is sleeved on the outer surface of the third movable rod 82 is connected between the second cover plate 86 and the third baffle plate 83.

[0050] Specifically, the second cover plate 86 and the third sleeve shell 81 can be connected by threads, and a sealing rubber pad is provided between the second cover plate 86 and the third sleeve shell 81; the third movable rod 82 is slidingly connected to the second cover plate 86; a connecting seat is provided on the side of the third sleeve shell 81 away from the second cover plate 86, and the connecting seat is hinged to the second sleeve shell 71; another connecting seat is provided on the side where the third movable rod 82 extends out of the third sleeve shell 81, and the connecting seat is hinged to the first sleeve shell 61.

[0051] The third movable rod 82 is hollow inside and is connected to the third sleeve shell 81; the third damping spring 84 is connected between the inner wall of the third movable rod 82 and the inner wall of the third sleeve shell 81, and the fourth damping spring 85 is installed on the outer side of the third movable rod 82, so as to ensure the stability of the connection of the third damping spring 84 and the fourth damping spring 85. The third damping spring 84 is responsible for energy consumption and vibration reduction, and the vibration reduction effect is further improved by the fourth damping spring 85, which accelerates energy consumption and can effectively absorb the oscillation between the insulator strings 2 to ensure the safe use of the power supply network. At the same time, it can reduce the vibration between the first vibration reduction assembly 6 and the second vibration reduction assembly 7 along with the insulator string 2 to ensure that the first vibration reduction assembly 6 and the second vibration reduction assembly 7 have a better vibration reduction effect.

[0052] The connecting seat can be composed of a base plate and ear plates installed on both sides of the base plate. The ear plates are provided with through holes, and when connected with other components, they can be connected by stud bolts.

[0053] Reference Figure 4 and Figure 8 In this embodiment, a first sealing ring 10 is provided between the first cover plate 66 and the first movable rod 62 and between the second cover plate 86 and the third movable rod 82 .

[0054] Specifically, the first sealing ring 10 is an I-shaped structure, which can effectively prevent rain and dust from entering the first sleeve shell 61 and the third sleeve shell 81, thereby improving the service life of the first vibration damping assembly 6 and the third vibration damping assembly 8. By designing the first sealing ring 10 as an I-shaped structure, it can effectively avoid the displacement of the first sealing ring 10 during the extension and contraction of the first vibration damping assembly 6 and the third vibration damping assembly 8, thereby improving the stability and reliability of the use of the first vibration damping assembly 6 and the third vibration damping assembly 8.

[0055] In summary, the present invention cooperates with the first vibration reduction assembly 6, the second vibration reduction assembly 7 and the third vibration reduction assembly 8. When oscillation occurs between the insulator strings 2, the first damping spring 64 is stretched or contracted, the oil moves back and forth in the air cavity 721 and the oil cavity 711, and the third damping spring 84 and the fourth damping spring 85 are stretched or contracted. The absorption efficiency of the swing energy is high, especially for large-amplitude swings, and the vibration reduction effect is better, which effectively absorbs the oscillation between the insulator strings 2 and ensures the safe use of the power supply network.

[0056] The vibration-damping spacer provided by the present invention has a good effect of suppressing the swing between the insulator strings 2, can effectively prevent the damage to the transmission line caused by oscillation and mutual whipping between the insulator strings 2, improves the integrity of the insulator strings 2, and increases the safe use range of the insulator strings 2.

[0057] The vibration-damping spacer provided by the present invention can protect the damping spring through the arrangement of the first sleeve shell 61, the second movable rod 72, the third sleeve shell 81 and the third movable rod 82, thereby greatly improving the service life of the damping spring and preventing the damping spring from being exposed to the air, which would cause the damping spring to rust and fail over time.

[0058] The present invention effectively improves the vibration reduction effect through the combination of spring vibration reduction + oil-gas vibration reduction, and is safe, reliable and highly practical.

[0059] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0060] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in the relevant field should understand that the specific implementation methods of the present invention can still be modified or replaced by equivalents. Any modification or equivalent replacement that does not depart from the spirit and scope of the present invention should be covered within the scope of protection of the claims of the present invention.

Claims

1. A vibration reduction spacer device for a multi-insulator string, characterized in that: It comprises a large triangular plate (1), II-shaped insulator string assemblies vertically arranged at both ends of the large triangular plate (1), and a horizontal vibration-damping connection member (18) connecting the insulator strings (2) in the horizontal direction; The horizontal vibration-damping connecting member (18) comprises a connecting plate (5), a first vibration-damping assembly (6), a second vibration-damping assembly (7) and a third vibration-damping assembly (8); The connecting plate (5) is movably connected between two insulator strings (2) located at the same end of the large triangular plate (1); the upper and lower parts of the ends of the two connecting plates (5) close to each other are both movably connected to one end of the first vibration damping component (6); the other end of the first vibration damping component (6) is movably connected to a small triangular plate (9); the two small triangular plates (9) are movably connected to the second vibration damping component (7); both sides of the second vibration damping component (7) are movably connected to one end of two third vibration damping components (8); the other end of the third vibration damping component (8) is movably connected to one side of the first vibration damping component (6), so that a triangular structure is formed between the first vibration damping component (6), the second vibration damping component (7) and the third vibration damping component (8).

2. The vibration-damping spacer device for a multiple insulator string according to claim 1, characterized in that: The first vibration reduction assembly (6) comprises a first sleeve shell (61) and a first cover plate (66), wherein the first cover plate (66) is installed at the opening of the first sleeve shell (61), and a first baffle plate (63) is slidably provided inside the first sleeve shell (61); One side of the first baffle (63) is connected to the first movable rod (62), and the other side is connected to the guide rod (65); The first movable rod (62) passes through the first cover plate (66) and extends to the outside of the first sleeve shell (61), and a first damping spring (64) sleeved on the outer surface of the guide rod (65) is connected between the first baffle plate (63) and the inner wall of the first sleeve shell (61).

3. The vibration-damping spacer device for a multiple insulator string according to claim 1, characterized in that: The second vibration reduction assembly (7) comprises a second sleeve shell (71) and a second movable rod (72) slidably mounted in the second sleeve shell (71); a second baffle (73) slidably mounted in the second sleeve shell (71) is mounted at the end of the second movable rod (72); The second baffle (73) is provided with a flow limiting hole (731) and a plurality of oil limiting holes (732) along the axial direction; A movable block (74) is slidably disposed inside the second movable rod (72), and a blocking needle (75) capable of blocking the flow limiting hole (731) is installed on a side of the movable block (74) close to the second baffle (73); A second damping spring (76) is connected between a side of the movable block (74) away from the second baffle (73) and an inner wall of the second movable rod (72); An oil chamber (711) is formed between the inner wall of the second sleeve shell (71) and the second baffle plate (73), and an air chamber (721) is formed between the inner wall of the second movable rod (72) and the second baffle plate (73).

4. The vibration-damping spacer device for an insulator string according to claim 3, characterized in that: An air charging valve (722) is provided on the outer wall of the second movable rod (72), and an oil inlet valve (712) is provided on the outer wall of the other end of the second sleeve shell (71); The diameter of the flow limiting hole (731) is larger than that of the oil limiting hole (732).

5. The vibration-damping spacer device for an insulator string according to claim 3, characterized in that: A second sealing ring (77) is provided between one end of the second sleeve shell (71) and the outer wall of the second movable rod (72); A static sealing ring (78) is provided between the outer wall of the second sleeve shell (71) and the second movable rod (72), and the static sealing ring (78) is installed tightly against the second sealing ring (77). A spring pressure ring (79) is provided between the second baffle (73) and the static sealing ring (78), and the spring pressure ring (79) is sleeved on the second movable rod (72).

6. The vibration-damping spacer device for an insulator string according to claim 2, characterized in that: The third vibration reduction assembly (8) comprises a third sleeve shell (81) and a second cover plate (86), wherein the second cover plate (86) is installed at the opening of the third sleeve shell (81), and a third baffle plate (83) is slidably installed in the third sleeve shell (81); A third movable rod (82) is connected to one side of the third baffle plate (83), and the third movable rod (82) passes through the second cover plate (86) and extends to the outside of the third sleeve shell (81); A third damping spring (84) is connected between the inner wall of the third movable rod (82) and the inner wall of the third sleeve shell (81), and a fourth damping spring (85) sleeved on the outer surface of the third movable rod (82) is connected between the second cover plate (86) and the third baffle plate (83).

7. The vibration-damping spacer device for an insulator string according to claim 6, characterized in that: A first sealing ring (10) is provided between the first cover plate (66) and the first movable rod (62), and between the second cover plate (86) and the third movable rod (82); the first sealing ring (10) is an I-shaped structure.

8. The vibration-damping spacer device for an insulator string according to claim 1, characterized in that: The upper end of the connection plate (5) is connected to the lower end of the insulator string (2) via a bowl head hanging plate (11), and the lower end of the connection plate (5) is connected to the upper end of the insulator string (2) via a ball head hanging plate (12).

9. The vibration-damping spacer device for an insulator string according to claim 1, characterized in that: The large triangle plate (1) is connected to the upper end of the insulator string (2) via a first right-angle hanging plate (13), and the wire clamp (4) is connected to the lower end of the connecting plate (3) via a second right-angle hanging plate (14).

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