A high-voltage isolating switch insulation bracket

Abstract

The present invention relates to the technical field of power supply auxiliary equipment, and discloses an insulating support for a high-voltage disconnect switch, comprising a switch assembly, comprising a mounting frame, an insulating support fixed on the top of the mounting frame, an insulator fixed on the top of the insulating support; a fixing assembly, arranged on the insulating support, comprising a clamping member, comprising a support seat fixed to the top of the insulating support, a cable arranged in the support seat, a clamping seat arranged above the support seat, a lifting block sliding in the clamping seat, a lifting rod fixed to the bottom of the lifting block, an extrusion block fixed to the bottom of the lifting rod, and a push column fixed to the top of the lifting block. The beneficial effects of the present invention are: 1. During installation, by arranging a hydraulic cylinder, an oil storage cylinder, a first spring and a sealing ball, etc., the clamping force of the extrusion block on the cable is constant to avoid being too tight or too loose; 2. The wind drives the wind plate, and the two extrusion blocks are driven to apply pressure alternately through the rotating shaft, so that the force point of the cable obtains a "force unloading recovery period".

Description

Technical Field

[0001] The present invention relates to the technical field of power supply auxiliary equipment, in particular to an insulating bracket for a high-voltage disconnect switch. Background Art

[0002] In high-voltage power systems, high-voltage disconnectors are important switching devices. The reliability of the cables fixed at their input and output ends directly affects the safe operation of the system. Currently, cables are usually clamped and fixed by insulating brackets, which must meet the requirements of electrical insulation, mechanical support and anti-falling.

[0003] The clamping structure of existing insulating brackets is mostly fixed or manually adjustable, and has the following defects: First, it is difficult to accurately control the clamping force during installation. If it is too tight, it may easily cause plastic deformation or microcracks in the cable insulation layer (especially flexible insulating materials such as cross-linked polyethylene), causing insulation performance degradation after long-term operation; if it is too light, it cannot withstand external forces such as wind and vibration, causing the cable to loosen or even fall off, increasing the risk of phase-to-phase short circuit; second, the clamping part is subjected to concentrated force for a long time. Under conditions such as thermal expansion and contraction of the cable and wind shaking, the insulation layer is prone to fatigue damage due to continuous friction and creep, shortening its service life. Summary of the Invention

[0004] In view of the above problems and / or the problems existing in the existing high-voltage disconnector insulation bracket, the present invention is proposed.

[0005] Therefore, the problem to be solved by the present invention is that the clamping force of the existing insulating bracket is difficult to control and the insulating layer is easily damaged.

[0006] To solve the above technical problems, the present invention provides the following technical solutions: an insulating support for a high-voltage disconnector, comprising: a switch assembly, comprising a mounting frame, an insulating support fixed to the top of the mounting frame, and an insulator fixed to the top of the insulating support;

[0007] A fixing assembly is arranged on the insulating bracket, including a clamping part, including a support seat fixed to the top of the insulating bracket, a cable is arranged in the support seat, a clamping seat is arranged above the support seat, a lifting block slides in the clamping seat, a lifting rod is fixed to the bottom of the lifting block, an extrusion block is fixed to the bottom of the lifting rod, a push column is fixed to the top of the lifting block, a piston is fixed to the top of the push column, a hydraulic cylinder is fixed in the clamping seat, an oil storage cylinder is fixed on the surface of the hydraulic cylinder, a through groove is provided between the hydraulic cylinder and the oil storage cylinder, a first spring is fixed in the through groove, a sealing ball is fixed to the end of the first spring, a pull rod is fixed to the bottom of the clamping seat, a pad is provided on the surface of the pull rod, a nut is provided on one side of the pad, and a sealing shell is provided at the bottom of the insulating bracket.

[0008] As a preferred solution of the insulating support of the high-voltage disconnector described in the present invention, the fixing assembly further includes a pressure regulating part arranged in the hydraulic cylinder, including a support body fixed to the top of the hydraulic cylinder, an adjusting groove is opened in the support body, and the adjusting groove is connected to the hydraulic cylinder.

[0009] As a preferred solution of the insulating support of the high-voltage disconnector according to the present invention, the voltage regulating member further comprises an regulating block sliding in the regulating slot, and a rotating wheel is rotatably connected in the regulating block.

[0010] As a preferred solution of the insulating support of the high-voltage disconnector described in the present invention, the voltage regulating part also includes a limit plug sliding in the support body, a threaded shaft is rotatably connected in the limit plug, the threaded shaft is rotatably connected to the support body through a thread, a cut-off screw is rotatably connected in the oil storage cylinder through a thread, a cut-off rod is fixed to the end of the cut-off screw, and the cut-off rod is located on one side of the through groove.

[0011] As a preferred solution of the insulating support of the high-voltage disconnector described in the present invention, the fixing assembly further includes a driving member arranged on the top of the support body, including a support block fixed to the top of the support body, a rotating shaft is rotatably connected in the support block, a convex plate is fixed on the surface of the rotating shaft, and a groove is provided on the surface of the rotating shaft.

[0012] As a preferred solution of the insulating support for the high-voltage disconnector according to the present invention, the fixing assembly further comprises a dustproof shell fixed to the top of the insulating support.

[0013] As a preferred solution of the insulating bracket of the high-voltage disconnector described in the present invention, the fixing assembly also includes a power part arranged on the top of the dustproof shell, including a fixing block fixed to the top of the dustproof shell, a rotating rod rotatably connected inside the fixing block, a wind plate is fixed on the surface of the rotating rod, and a torsion spring is arranged between the fixing block and the rotating rod.

[0014] As a preferred solution of the insulating bracket of the high-voltage disconnector described in the present invention, the power part also includes a fan-shaped disk fixed to the surface of the rotating rod, a clamping block is rotatably connected inside the fan-shaped disk, a second spring is fixed to one side of the clamping block, and the other end of the second spring is fixed to the inner wall of the fan-shaped disk.

[0015] As a preferred solution of the insulating bracket of the high-voltage disconnector described in the present invention, the power part further includes a rotating disk fixed to the surface of the rotating shaft, a plurality of slots are opened on the surface of the rotating disk, and the card block is located on one side of the slot.

[0016] As a preferred solution of the insulating support of the high-voltage disconnector according to the present invention, the fixing assembly further comprises a blocking frame fixed to the top of the dustproof shell.

[0017] The beneficial effects of the present invention are:

[0018] 1. During installation, the hydraulic cylinder, oil storage cylinder, first spring and sealing ball are set to ensure that the clamping force of the extrusion block on the cable is constant to avoid being too tight or too loose;

[0019] 2. The wind drives the wind plate, which drives the two extrusion blocks to apply pressure alternately through the rotating shaft, so that the cable stress point has a "force unloading recovery period";

[0020] 3. Wind-powered drive does not require an external power supply, and is protected by a dustproof and sealed shell to improve environmental adaptability. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. Those skilled in the art can also derive other drawings based on these drawings without inventive effort. Among them:

[0022] Figure 1 This is the structural diagram of the high-voltage disconnect switch insulation bracket.

[0023] Figure 2 This is a side view of the structural components of the high-voltage disconnect switch insulation bracket.

[0024] Figure 3 Insulation bracket for high voltage disconnector Figure 2 Cross-sectional structural diagram at EE.

[0025] Figure 4 This is a cross-sectional structural diagram of the hydraulic cylinder of the high-voltage disconnect switch insulation bracket.

[0026] Figure 5 Insulation bracket for high voltage disconnector Figure 4 Cross-sectional structural diagram at point A in the middle.

[0027] Figure 6 Insulation bracket for high voltage disconnector Figure 4 Cross-sectional structural diagram at point B in the middle.

[0028] Figure 7 This is the structural diagram of the clamping seat of the high-voltage disconnect switch insulation bracket.

[0029] Figure 8 This is a side view of the clamping seat of the high-voltage disconnect switch insulation bracket.

[0030] Figure 9Insulation bracket for high voltage disconnector Figure 8 Cross-sectional structural diagram at FF in the middle.

[0031] Figure 10 Insulation bracket for high voltage disconnector Figure 9 A partial enlarged structural diagram at point C in the middle.

[0032] Figure 11 This is a cross-sectional structural diagram of the fan-shaped disk of the high-voltage disconnector insulation bracket.

[0033] Figure 12 Insulation bracket for high voltage disconnector Figure 11 A partial enlarged structural diagram at point D in the middle.

[0034] Figure 13 This is the structural diagram of the rotating shaft of the insulating bracket of the high-voltage disconnect switch.

[0035] Figure 14 This is a structural diagram of the groove on the rotating shaft of the insulating bracket of the high-voltage disconnect switch.

[0036] Figure: switch assembly 100; mounting frame 101; insulating bracket 102; insulator 103; fixing assembly 200; clamping member 201; support base 2011; cable 2012; clamping base 2013; lifting block 2014; lifting rod 2015; extrusion block 2016; push column 2017; piston 2018; hydraulic cylinder 2019; oil storage cylinder 20110; through groove 20110-1; first spring 20111; sealing ball 20112; pull rod 20113; pad 20114; sealing shell 20115; pressure regulating member 202; support Body 2021; adjusting groove 2021-1; adjusting block 2022; rotating wheel 2023; limiting plug plate 2024; threaded shaft 2025; cut-off screw 2026; cut-off rod 2027; driving member 203; supporting block 2031; rotating shaft 2032; convex plate 2033; groove 2032-1; dust cover 204; power member 205; fixing block 2051; rotating rod 2052; wind plate 2053; sector disk 2054; clamping block 2055; second spring 2056; rotating disk 2057; clamping slot 2057-1; blocking frame 206. DETAILED DESCRIPTION

[0037] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0038] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0039] Secondly, the term "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in various places throughout this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive of other embodiments. Example 1

[0040] Reference Figures 1 to 5 and Figures 7 to 10 , which is the first embodiment of the present invention, provides an insulating support for a high-voltage disconnect switch. The insulating support for the high-voltage disconnect switch includes a switch assembly 100, including a mounting frame 101. An insulating support 102 is fixed on the top of the mounting frame 101. There are three insulating supports 102 for supporting a three-phase circuit. The insulating supports 102 are made of insulating material. Insulators 103 are fixed on the top of the insulating supports 102. There are three groups of insulators 103. The three groups of insulators 103 are provided with a switching mechanism of the high-voltage disconnect switch. This is a prior art and those skilled in the art should be clearly aware of it and will not be elaborated here.

[0041] The fixing assembly 200 is arranged on the insulating bracket 102. Each insulating bracket 102 has a fixing assembly 200 for clamping and fixing the cable, including a clamping member 201, including a support seat 2011 fixed to the top of the insulating bracket 102, the support seat 2011 is fixed to the insulating bracket 102 by bolts, a cable 2012 is arranged in the support seat 2011, and a clamping seat 2013 is arranged above the support seat 2011. The number of clamping seats 2013 on each support seat 2011 is two. The two clamping seats 2013 are fixedly connected by a connecting plate, and a lifting block 2014 slides inside the clamping seat 2013. Two lifting rods 2015 are fixed to the bottom of the lifting block 2014, and an extrusion block 2016 is fixed to the bottom of the lifting rod 2015. The extrusion block 2016 is used to clamp and fix the cable 2012. The inner side of the extrusion block 2016 fits the curvature of the cable 2012, and the surface is treated with a slightly convex texture, which not only increases static friction, but also reduces sweat / water vapor accumulation caused by full-area contact, thereby reducing the risk of moisture in the insulation layer.

[0042] A push column 2017 is fixed on the top of the lifting block 2014, a piston 2018 is fixed on the top of the push column 2017, a hydraulic cylinder 2019 is fixed in the clamping seat 2013, the piston 2018 slides in the hydraulic cylinder 2019, the contact surface of the piston 2018 and the hydraulic cylinder 2019 is sealed, hydraulic oil is provided in the hydraulic cylinder 2019 at the top of the piston 2018, an oil storage cylinder 20110 is fixed on the surface of the hydraulic cylinder 2019, and a through groove 20110-1 is provided between the hydraulic cylinder 2019 and the oil storage cylinder 20110, so that the hydraulic The hydraulic oil in the pressure cylinder 2019 can enter the oil storage cylinder 20110 through the through groove 20110-1. A first spring 20111 is fixed in the through groove 20110-1. The first spring 20111 is in a compressed state. A sealing ball 20112 is fixed at the end of the first spring 20111. The through groove 20110-1 has a narrow section and a wide section. The first spring 20111 and the sealing ball 20112 are located at the wide section of the through groove 20110-1, so that the sealing ball 20112 can seal the narrow section of the through groove 20110-1.

[0043] Two pull rods 20113 are fixed at the bottom of the clamping seat 2013, and a pad 20114 is provided on the surface of the pull rod 20113. The pad 20114 is located at the bottom of the insulating bracket 102. A nut is provided on one side of the pad 20114, and the nut is connected to the surface of the pull rod 20113 by threaded rotation. The pull rod 20113 passes through the support seat 2011. By rotating the nut, the pad 20114 can be squeezed to the bottom of the insulating bracket 102, and the pull rod 20113 can be pulled at the same time, so that the pull rod 20113 pulls the clamping seat 2013, so that the clamping seat 2013 falls on the top of the support seat 2011. A sealing shell 20115 is provided at the bottom of the insulating bracket 102, which is used to seal the pad 20114, pull rod 20113, nut and other structures under the insulating bracket 102 to improve its corrosion resistance.

[0044] During the process of the clamping seat 2013 falling on the top of the support seat 2011, the extrusion block 2016 clamps the cable 2012. As the clamping seat 2013 moves downward, the piston 2018 moves upward in the hydraulic cylinder 2019, thereby squeezing the hydraulic oil in the hydraulic cylinder 2019, causing the hydraulic oil to break through the seal of the sealing ball 20112 and enter the wide section of the through groove 20110-1, and then enter the oil storage cylinder 20110 from the wide section of the through groove 20110-1, so that the oil storage cylinder 20110 stores the hydraulic oil in the hydraulic cylinder 2019. Since the thrust of the first spring 20111 on the sealing ball 20112 is certain, that is, the pressure of the hydraulic oil in the hydraulic cylinder 2019 is certain, the pressure applied to the extrusion block 2016 is certain. In this way, when the extrusion block 2016 clamps the cable 2012, a certain pressure can be maintained to prevent the clamping force from being too tight or too light.

[0045] Assuming that the clamping force on the cable 2012 is X, the insulation layer of the cable 2012 will not be damaged by the clamping, and will not loosen or even fall off under the action of external forces such as wind and vibration. Since two extrusion blocks 2016 are provided on the surface of each cable 2012, as shown in the figure, the two extrusion blocks 2016 have the same extrusion force on the cable 2012, that is, the clamping force of the extrusion block 2016 is 0.5X at this time.

[0046] One extrusion block 2016 can reduce the extrusion force on the cable 2012 while the other extrusion block 2016 increases the extrusion force on the cable 2012, so that the total clamping force of the two extrusion blocks 2016 is maintained between X and 1.1X, that is, the extrusion force fluctuation on the cable 2012 is ≤10%.

[0047] Cable insulation layers, such as cross-linked polyethylene (XLPE), can undergo plastic deformation under long-term constant pressure. Continuous pressure from a single clamping point, especially in high-temperature environments, can cause permanent thinning of the insulation layer, or even the appearance of microcracks. During the process of alternate squeezing of the cable 2012 by the extrusion blocks 2016, each stress-bearing point of the cable 2012 has a "stress-unloading recovery period," which prevents creep and fatigue damage to the insulation layer due to long-term continuous stress, thereby extending its service life. Example 2

[0048] Reference Figures 5 to 7 、 Figure 9 、 Figure 10 、 Figure 13 and Figure 14 , which is the second embodiment of the present invention, and this embodiment is based on the previous embodiment.

[0049] Specifically, the fixing assembly 200 also includes a pressure regulating part 202 arranged in the hydraulic cylinder 2019, including a support body 2021 fixed to the top of the hydraulic cylinder 2019, and an adjusting groove 2021-1 is opened in the support body 2021. The adjusting groove 2021-1 is connected to the hydraulic cylinder 2019, so that the hydraulic oil in the hydraulic cylinder 2019 can enter the adjusting groove 2021-1. By squeezing the hydraulic oil in the adjusting groove 2021-1, the pressure of the hydraulic oil in the hydraulic cylinder 2019 can be adjusted.

[0050] Specifically, the pressure regulating member 202 also includes an adjusting block 2022 that slides in the adjusting groove 2021-1, and a rotating wheel 2023 is rotatably connected in the adjusting block 2022. By pressing the adjusting block 2022, the adjusting block 2022 can be moved into the adjusting groove 2021-1, so that the adjusting block 2022 squeezes the hydraulic oil in the adjusting groove 2021-1, thereby increasing the pressure of the hydraulic oil in the hydraulic cylinder 2019, thereby increasing the squeezing force on the squeezing block 2016, thereby increasing the squeezing force on the cable 2012. The setting of the rotating wheel 2023 facilitates pressing the adjusting block 2022.

[0051] Specifically, the pressure regulating member 202 further includes a limit plate 2024 that slides in the support body 2021. The limit plate 2024 is located on one side of the regulating block 2022 and is used to limit the regulating block 2022 so that the regulating block 2022 has space to move upward after the extrusion block 2016 clamps the cable 2012. As a result, the upward movement of the regulating block 2022 can reduce the clamping force of the extrusion block 2016 on the cable 2012. A threaded shaft 2025 is rotatably connected to the limit plate 2024. The threaded shaft 2025 is rotatably connected to the support body 2021 through a thread. By rotating the threaded shaft 202 The limiting plug plate 2024 can be driven away from the regulating block 2022, thereby releasing the limiting of the regulating block 2022. A shut-off screw 2026 is rotatably connected to the oil storage cylinder 20110 through a thread. A shut-off rod 2027 is fixed to the end of the shut-off screw 2026. The shut-off rod 2027 is located on one side of the through groove 20110-1. By rotating the shut-off screw 2026, the shut-off rod 2027 can be driven to move toward the through groove 20110-1, thereby blocking the narrow section of the through groove 20110-1. As a result, the hydraulic oil in the hydraulic cylinder 2019 cannot enter the oil storage cylinder 20110 through the through groove 20110-1.

[0052] Specifically, the fixing assembly 200 also includes a driving member 203 arranged on the top of the support body 2021, including a support block 2031 fixed on the top of the support body 2021, a rotating shaft 2032 is rotatably connected inside the support block 2031, a convex plate 2033 is fixed on the surface of the rotating shaft 2032, and a groove 2032-1 is opened on the surface of the rotating shaft 2032. There are two convex plates 2033 and grooves 2032-1 on the surface of each rotating shaft 2032, and they are staggered 180 degrees.

[0053] The rotation of the rotating shaft 2032 can cause one of the convex plates 2033 to press the rotating wheel 2023 in the adjusting block 2022, so that the rotating wheel 2023 drives the adjusting block 2022 to move downward, thereby increasing the squeezing force of the squeezing block 2016 on the cable 2012. At this time, the groove 2032-1 on one side of the other convex plate 2033 on the rotating shaft 2032 moves above the other rotating wheel 2023, so that the squeezing force of the rotating shaft 2032 on the rotating wheel 2023 is reduced, so that the adjusting block 2022 moves upward under the push of the hydraulic oil, so that the hydraulic oil pressure in the hydraulic cylinder 2019 is reduced, thereby reducing the squeezing force of the corresponding squeezing block 2016 on the cable 2012, thereby achieving the squeezing force of the two squeezing blocks 2016 on the cable 2012 alternating with each other, so that the clamped part of the cable 2012 obtains a "force unloading recovery period", which can avoid creep and fatigue damage of the insulation layer due to long-term continuous stress and extend its service life. Example 3

[0054] Reference Figures 1 to 14 , which is the third embodiment of the present invention, is based on the first two embodiments.

[0055] Specifically, the fixing assembly 200 further includes a dustproof shell 204 fixed to the top of the insulating bracket 102 . The dustproof shell 204 is used to protect the fixing assembly 200 and reduce the corrosion of the fixing assembly 200 caused by wind and rain.

[0056] Specifically, the fixing assembly 200 also includes a power part 205 arranged on the top of the dustproof shell 204, including a fixed block 2051 fixed on the top of the dustproof shell 204, a rotating rod 2052 is rotatably connected inside the fixed block 2051, and a wind plate 2053 is fixed on the surface of the rotating rod 2052. A torsion spring is arranged between the fixed block 2051 and the rotating rod 2052. The torsion spring is currently in a normal state. Through the reset elastic force of the torsion spring, the rotating rod 2052 is rotated by an external force and returns to the angle shown in the figure, thereby driving the wind plate 2053 to reset.

[0057] When wind blows on the wind plate 2053, the elastic force of the torsion spring can be overcome to drive the wind plate 2053 to deflect, thereby driving the rotating rod 2052 to rotate. When the wind force decreases, the torsion spring can drive the wind plate 2053 to reset and move until the wind stops, and the wind plate 2053 is reset.

[0058] Specifically, the power part 205 also includes a fan-shaped disk 2054 fixed to the surface of the rotating rod 2052, and a block 2055 is rotatably connected inside the fan-shaped disk 2054. A second spring 2056 is fixed to one side of the block 2055. The second spring 2056 is in a normal state, and the other end of the second spring 2056 is fixed to the inner wall of the fan-shaped disk 2054 for supporting the block 2055. When the rotating rod 2052 rotates, it can drive the fan-shaped disk 2054 to rotate, thereby driving multiple blocks 2055 to move.

[0059] Specifically, the power member 205 further includes a rotating disk 2057 fixed to the surface of the rotating shaft 2032 . A plurality of slots 2057 - 1 are defined on the surface of the rotating disk 2057 , and the clamping block 2055 is located on one side of the slot 2057 - 1 .

[0060] When the fan-shaped disk 2054 rotates, it can drive the block 2055 to push the inner wall of the slot 2057-1, thereby driving the rotating shaft 2032 to rotate. When the fan-shaped disk 2054 rotates in the opposite direction, that is, the wind stops, the torsion spring drives the wind plate 2053 to reset and move. At this time, the block 2055 on the fan-shaped disk 2054 cannot push the slot 2057-1, and the rotating disk 2057 squeezes the block 2055, so that the block 2055 moves into the fan-shaped disk 2054, thereby not affecting the rotation of the fan-shaped disk 2054.

[0061] Since the adjusting block 2022 exerts a certain squeezing force on the rotating shaft 2032 through the rotating wheel 2023 , there is a certain friction force between the rotating shaft 2032 and the supporting block 2031 . When the blocking block 2055 does not push the rotating disk 2057 , the rotating shaft 2032 can remain stationary.

[0062] Specifically, the fixing assembly 200 further includes a blocking frame 206 fixed to the top of the dustproof shell 204 , and the blocking frame 206 is used to block the air plate 2053 to prevent the air plate 2053 from excessive deflection.

[0063] In summary, the present invention has the following beneficial effects:

[0064] 1. Through the hydraulic adjustment structure consisting of the hydraulic cylinder 2019, the oil storage cylinder 20110, the first spring 20111, and the sealing ball 20112, the sealing ball seals the through groove 20110-1, so that the clamping force of the extrusion block 2016 on the cable 2012 is maintained constant. During installation, the tie rod 20113, nut, and backing plate 20114 are used to fix the cable 2012. This can prevent the insulation layer from being damaged by excessive clamping or the cable from being loosened due to excessive clamping, ensuring that the clamping force is always within a safe range.

[0065] 2. Driven by wind, the wind plate 2053 of the power member 205 drives the rotating rod 2052 and the fan-shaped disk 2054 to rotate. The clamping block 2055 cooperates with the clamping slot 2057-1 of the rotating disk 2057, causing the rotating shaft 2032 of the driving member 203 to rotate unidirectionally. The convex plate 2033 and the groove 2032-1 of the rotating shaft 2032 alternately act on the rotating wheel 2023 of the pressure regulating member 202, prompting the two extrusion blocks 2016 to alternately change the extrusion force. The total force fluctuation is ≤10%, allowing the stress point of the cable 2012 to obtain a "stress recovery period", thereby preventing creep and fatigue damage to the insulation layer caused by long-term stress.

[0066] 3. The power component 205, which consists of a wind plate 2053 and a torsion spring, converts wind energy into mechanical kinetic energy to drive alternating clamping. It does not require an external power supply and is suitable for outdoor scenarios without power supply. At the same time, the dustproof shell 204 protects the fixed component 200, and the sealing shell 20115 protects the bottom structure, effectively reducing the impact of wind and rain corrosion and enhancing the durability of the equipment in complex environments.

[0067] During use, when fixing the cable 2012, first place the cable 2012 in the support seat 2011 so that the clamping seat 2013 is located above the support seat 2011. At this time, the pull rod 20113 can pass through the support seat 2011, and the pad 20114 can be placed on the surface of the pull rod 20113. The pull rod 20113 is pulled by the nut to fix the clamping seat 2013 above the support seat 2011.

[0068] During the process of the clamping seat 2013 falling on the top of the support seat 2011, the extrusion block 2016 clamps the cable 2012. As the clamping seat 2013 moves downward, the piston 2018 moves upward in the hydraulic cylinder 2019, thereby squeezing the hydraulic oil in the hydraulic cylinder 2019, causing the hydraulic oil to break through the seal of the sealing ball 20112 and enter the wide section of the through groove 20110-1, and then enter the oil storage cylinder 20110 from the wide section of the through groove 20110-1, so that the oil storage cylinder 20110 stores the hydraulic oil in the hydraulic cylinder 2019. Since the thrust of the first spring 20111 on the sealing ball 20112 is certain, that is, the pressure of the hydraulic oil in the hydraulic cylinder 2019 is certain, the pressure applied to the extrusion block 2016 is certain. In this way, when the extrusion block 2016 clamps the cable 2012, a certain pressure can be maintained to prevent the clamping force from being too tight or too light.

[0069] At this time, the threaded shaft 2025 and the shut-off screw 2026 are rotated respectively to move the limit plate 2024 away from the adjusting block 2022, thereby releasing the limit on the adjusting block 2022. At the same time, the shut-off rod 2027 moves toward the through groove 20110-1, thereby blocking the narrow section of the through groove 20110-1, so that the hydraulic oil in the hydraulic cylinder 2019 cannot enter the oil storage cylinder 20110 through the through groove 20110-1.

[0070] When wind blows on the wind plate 2053, the elastic force of the torsion spring can be overcome to drive the wind plate 2053 to deflect, thereby driving the rotating rod 2052 to rotate. When the rotating rod 2052 rotates, the fan-shaped disk 2054 can be driven to rotate, thereby driving multiple blocks 2055 to move, so that the blocks 2055 push the inner wall of the slot 2057-1, thereby driving the rotating shaft 2032 to rotate. The reciprocating movement of the wind plate 2053 can make the rotating shaft 2032 rotate in one direction.

[0071] At this time, the rotating shaft 2032 rotates, which can cause one of the convex plates 2033 to press the rotating wheel 2023 in the adjusting block 2022, so that the rotating wheel 2023 drives the adjusting block 2022 to move downward, thereby increasing the squeezing force of the squeezing block 2016 on the cable 2012. At this time, the groove 2032-1 on one side of the other convex plate 2033 on the rotating shaft 2032 moves above the other rotating wheel 2023, so that the squeezing force of the rotating shaft 2032 on the rotating wheel 2023 is reduced, so that the adjusting block 2022 moves upward under the push of the hydraulic oil, so that the hydraulic oil pressure in the hydraulic cylinder 2019 is reduced, thereby reducing the squeezing force of the corresponding squeezing block 2016 on the cable 2012, thereby achieving the squeezing force of the two squeezing blocks 2016 on the cable 2012 alternating with each other, so that the clamped part of the cable 2012 obtains a "force unloading recovery period", which can avoid creep and fatigue damage of the insulation layer due to long-term continuous stress, thereby extending its service life.

[0072] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A high-voltage isolating switch insulating bracket, characterized by: include, A switch assembly (100) comprises a mounting frame (101), an insulating bracket (102) being fixed on the top of the mounting frame (101), and an insulator (103) being fixed on the top of the insulating bracket (102); A fixing assembly (200) is arranged on the insulating support (102), comprising a clamping member (201), comprising a support seat (2011) fixed to the top of the insulating support (102), a cable (2012) being arranged in the support seat (2011), a clamping seat (2013) being arranged above the support seat (2011), a lifting block (2014) sliding in the clamping seat (2013), a lifting rod (2015) being fixed to the bottom of the lifting block (2014), an extrusion block (2016) being fixed to the bottom of the lifting rod (2015), a push column (2017) being fixed to the top of the push column (2017), a piston (2018) being fixed to the top of the clamping member (2011), and A hydraulic cylinder (2019) is fixed in the holder (2013), an oil storage cylinder (20110) is fixed on the surface of the hydraulic cylinder (2019), a through groove (20110-1) is provided between the hydraulic cylinder (2019) and the oil storage cylinder (20110), a first spring (20111) is fixed in the through groove (20110-1), a sealing ball (20112) is fixed at the end of the first spring (20111), a pull rod (20113) is fixed at the bottom of the clamping seat (2013), a pad (20114) is provided on the surface of the pull rod (20113), a nut is provided on one side of the pad (20114), and a sealing shell (20115) is provided at the bottom of the insulating bracket (102).

2. The high-voltage disconnect switch insulating bracket according to claim 1, characterized in that: The fixing assembly (200) further includes a pressure regulating member (202) disposed in the hydraulic cylinder (2019), comprising a support body (2021) fixed to the top of the hydraulic cylinder (2019), an adjusting groove (2021-1) being provided in the support body (2021), and the adjusting groove (2021-1) being in communication with the hydraulic cylinder (2019).

3. The high-voltage disconnect switch insulating support according to claim 2, characterized in that: The pressure regulating member (202) further comprises an regulating block (2022) sliding in the regulating groove (2021-1), and a rotating wheel (2023) is rotatably connected in the regulating block (2022).

4. The high-voltage disconnect switch insulating support according to claim 3, characterized in that: The pressure regulating member (202) further comprises a limiting plug plate (2024) sliding in the support body (2021); a threaded shaft (2025) is rotatably connected in the limiting plug plate (2024); the threaded shaft (2025) is rotatably connected in the support body (2021) via a thread; a cut-off screw rod (2026) is rotatably connected in the oil storage cylinder (20110) via a thread; a cut-off rod (2027) is fixed to the end of the cut-off screw rod (2026); and the cut-off rod (2027) is located on one side of the through groove (20110-1).

5. The high-voltage disconnect switch insulating support according to claim 4, characterized in that: The fixing assembly (200) further comprises a driving member (203) arranged on the top of the support body (2021), comprising a support block (2031) fixed to the top of the support body (2021), a rotating shaft (2032) being rotatably connected within the support block (2031), a convex plate (2033) being fixed on the surface of the rotating shaft (2032), and a groove (2032-1) being provided on the surface of the rotating shaft (2032).

6. The high-voltage disconnect switch insulating support according to claim 5, characterized in that: The fixing assembly (200) further includes a dustproof shell (204) fixed to the top of the insulating bracket (102).

7. The high-voltage disconnect switch insulating support according to claim 6, characterized in that: The fixing assembly (200) further comprises a power member (205) arranged on the top of the dustproof shell (204), comprising a fixing block (2051) fixed to the top of the dustproof shell (204), a rotating rod (2052) rotatably connected inside the fixing block (2051), a wind plate (2053) being fixed on the surface of the rotating rod (2052), and a torsion spring being arranged between the fixing block (2051) and the rotating rod (2052).

8. The high-voltage disconnect switch insulating support according to claim 7, characterized in that: The power member (205) further comprises a sector disk (2054) fixed to the surface of the rotating rod (2052), a clamping block (2055) being rotatably connected inside the sector disk (2054), a second spring (2056) being fixed to one side of the clamping block (2055), and the other end of the second spring (2056) being fixed to the inner wall of the sector disk (2054).

9. The high-voltage disconnect switch insulating support according to claim 8, characterized in that: The power member (205) further comprises a rotating disk (2057) fixed to the surface of the rotating shaft (2032), a plurality of slots (2057-1) being provided on the surface of the rotating disk (2057), and the clamping block (2055) is located on one side of the slots (2057-1).

10. The high-voltage disconnect switch insulating support according to claim 9, characterized in that: The fixing assembly (200) further includes a blocking frame (206) fixed to the top of the dustproof shell (204).

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