Adjustable low-voltage side insulation bus bridge and use method

Abstract

The invention relates to the technical field of bus bridges, in particular to an adjustable low-voltage side insulation bus bridge and a using method, and the adjustable low-voltage side insulation bus bridge comprises two sections of shells, a bus arranged in the shells, a plurality of sections of copper plates connected to the middle end of the bus, and insulation adapters connected to the bending parts of the copper plates, a bracket fixedly connected with the insulating adapter located on the lower portion is arranged in the shell, the tops of the two sections of the shell are connected through a telescopic top plate, the telescopic top plate is used for limiting the insulating adapter located on the upper portion, and an adjusting assembly used for driving the bracket to move so as to change the bending angle of the multiple sections of copper plates is arranged in the shell. And the double-head air cylinder is arranged below the bracket, the two ends of the double-head air cylinder are slidably connected with piston rods matched with the double-head air cylinder, the piston rods and the adjusting assembly operate synchronously, the top of the double-head air cylinder communicates with a top cylinder, and a balance assembly for conveying air into the top cylinder from the air ring cylinder according to the moving distance of the piston rods is arranged in the top cylinder.

Description

Technical Field

[0001] This invention relates to the field of busbar bridge technology, specifically to an adjustable low-voltage side insulated busbar bridge and its usage method. Background Technology

[0002] In traditional low-voltage power distribution systems, the busbar bridge, as a key component connecting the low-voltage side of the transformer with equipment such as low-voltage switchgear, often has a fixed design in terms of size and structure. Different models of transformers and low-voltage switchgear vary in installation dimensions, and in actual engineering applications, factors such as building structure and equipment layout lead to different requirements for parameters such as the length, height, and width of the busbar bridge. Fixed-size busbar bridges cannot meet diverse installation needs, often requiring on-site modifications or customization. This not only increases project costs and construction difficulty but may also lead to unstable installation quality, affecting the safety and reliability of the busbar bridge.

[0003] For example, patent document CN202004399U discloses an adjustable insulated busbar bridge, which includes a first housing connected to a second housing via an adjustment box; a first busbar is housed within the first housing and fixed to a mounting plate by insulators; the first busbar is connected to a second busbar via an adjustable connecting block located within the adjustment box, and the second busbar is housed within the second housing and fixed to the mounting plate by insulators. The distance between the first and second housings of this insulated busbar bridge can be adjusted via the adjustment box, and the distance between the first and second busbars can also be adjusted via the adjustable connecting block. This allows for adjustment of the overall bridge housing and busbar length, solving the problem of inconvenient busbar bridge installation caused by manufacturing errors and actual installation deviations, and improving the installation efficiency of the busbar bridge; it is simple in structure and economical and practical.

[0004] In existing technical solutions, although the busbar distance is effectively adjusted by using folded copper sheets, in actual operation, the originally regular shape of the folded copper sheets is easily twisted and deformed after multiple bending and adjustment operations. This deformation is not a simple local deformation, but rather forms multiple uneven arcs. From the perspective of electrical principles, when current is transmitted in a conductor, the shape and surface condition of the conductor have a significant impact on the current distribution. After the folded copper sheets develop multiple uneven arcs, the current distribution during transmission will be uneven, the local current density will increase, and thus the resistance of the conductor will increase. According to Joule's law, the increase in resistance will directly lead to an increase in the loss of power as heat during transmission, reducing the efficiency of power transmission, and may even cause safety hazards due to local overheating. Therefore, this application proposes an adjustable low-voltage side insulated busbar bridge and its usage method. Summary of the Invention

[0005] The purpose of this invention is to provide an adjustable low-voltage side insulated busbar bridge and its usage method to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an adjustable low-voltage side insulated busbar bridge, comprising two housing sections and a busbar disposed therein, and multiple copper plates connected to the middle of the busbar, and further comprising: an insulating adapter seat connected to each bend of the multiple copper plates, wherein the housing is provided with a support fixedly connected to the lower insulating adapter seat, the tops of the two housing sections are connected by a telescopic top plate and the telescopic top plate is used to restrict the upper insulating adapter seat, and the housing is provided with an adjustment component for driving the support seat to move and change the bending angle of the multiple copper plates.

[0007] A double-headed air cylinder is located below a support, with piston rods slidably connected to both ends. The piston rods operate synchronously with an adjustment assembly. A top cylinder is connected to the top of the double-headed air cylinder, and a venting piston rod connected to the support is located at the top of the top cylinder. A gas storage ring cylinder is fitted on the outer surface of the top cylinder, and a balancing assembly is installed inside the top cylinder to supply gas from the gas ring cylinder to the top cylinder according to the piston rod's movement distance. The top cylinder also has a heat dissipation assembly inside to supply gas through the venting piston rod to the support for discharge, thereby cooling the insulating adapter located at the bottom.

[0008] Preferably, the adjusting assembly includes a connecting plate fixedly connected inside the two housing sections, cranks rotatably connected to the connecting plates on both sides of the support, two piston rods fixedly connected to the tops of the two connecting plates, connecting racks fixedly connected inside the two connecting plates, and gears meshing with the two connecting racks inside the housing.

[0009] Preferably, the balancing assembly includes a positioning ring fixedly connected inside the top cylinder. The positioning ring has multiple connecting holes that communicate with the top cylinder, and each of the multiple connecting holes is slidably connected to a sliding rod. Each of the multiple sliding rods has a straight groove that matches the connecting hole. The top cylinder has a straight groove that slidably contacts the multiple sliding rods.

[0010] Preferably, the heat dissipation assembly includes a tension spring disposed inside the top cylinder, with the top of the tension spring fixedly connected to the venting piston rod and the bottom of the tension spring fixedly connected to the movable plug. The movable plug has a through hole for gas to pass through, and a positioning rod is fixedly connected inside the venting piston rod. The bottom of the positioning rod is fixedly connected to a blocking rod adapted to the through hole of the movable plug, and the top of the venting piston rod is connected to a support through a bracket to deliver gas to the support.

[0011] Preferably, a pressure gauge is fixedly connected to one side of the gas ring cylinder, and the pressure gauge is used to detect the air pressure inside the gas ring cylinder. An air pump for supplying air into the gas ring cylinder is fixedly connected to the other side of the gas ring cylinder.

[0012] Preferably, the outer surface of the piston rod is fitted with a spring for self-reset, the outer surface of the multiple slide rods is fitted with springs for self-reset, and the top of the support is provided with multiple exhaust and heat dissipation holes.

[0013] Preferably, both sides of the two sections of the housing are connected by protective telescopic plates, and a rotating rod for supporting the gear is rotatably connected between the two protective telescopic plates. A drive motor for driving the rotating rod to rotate is fixedly connected to one side of each protective telescopic plate.

[0014] Preferably, both the rotating rod and the gear are constructed with interconnected cavities. The outer surface of the rotating rod is provided with an air passage hole communicating with its cavity. Both sides of the double-headed air cylinder are connected to air supply pipes, and one end of the air supply pipe is fixedly connected to an air ring that is slidably connected to the outer surface of the rotating rod. The air ring is located on the outer surface of the air passage hole. The teeth of the gear are provided with expandable rubber.

[0015] Preferably, both sections of the housing are internally fixedly connected with multiple insulating support seats for supporting the busbar.

[0016] The present invention also provides a method for using an adjustable low-voltage side insulated busbar bridge, comprising the following steps: S1. When it is necessary to adjust the length of the busbar during use, the bending angle of the multiple copper plates can be changed by activating the adjustment component.

[0017] S2. At the same time, when the connecting plate moves, it will drive the piston rod to move along with it, thereby drawing gas from the double-headed air cylinder and replenishing the gas inside the balancing component, thus increasing the support strength of the support.

[0018] S3. When the length of the busbar needs to be reduced, the heat dissipation component operates to supply gas to the inside of the bracket, and then discharges it to continuously dissipate heat from the insulating adapter.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] 1. By setting multiple copper plate connections at the middle of the busbar, the length of the busbar can be adjusted according to different usage environments, greatly improving the versatility and adaptability of the busbar bridge. This meets the installation and usage needs of various scenarios, reducing installation difficulties or the cost and time of customizing the busbar bridge due to mismatched busbar lengths. The insulating adapter connects to each bend of the multiple copper plate sections, providing additional support, mitigating deformation during bending, enhancing mechanical stability, and reducing the risk of electrical performance degradation or damage due to bending deformation. The bracket connects to the insulating adapter at the bottom; by adjusting the bracket, the bending angle of the multiple copper plate sections can be stably changed. When the height of the bracket is increased, the bending angle of the connected multiple copper plate sections increases, while the telescopic top plate restricts the insulating adapter at the top, thus limiting the bending of the multiple copper plate sections, improving the regularity of bending, and ensuring the structural stability and electrical performance consistency of the busbar bridge during adjustment.

[0021] 2. When the gas inside the double-headed air cylinder increases, air is supplied to the rotating rod through the air supply pipe, causing the expansion rubber at the gear teeth to expand, increasing the contact area with the connecting rack, and further enhancing the shock absorption effect. This is especially beneficial when the bending angle of the multi-section copper plates is large and the rigid support force is small, providing more stable support for the busbar bridge. The heat dissipation component can achieve different heat dissipation effects according to the busbar length adjustment. When the busbar is shortened and the bending angle of the multi-section copper plates becomes smaller, the current passing through generates high resistance and heat. The support moves down, pushing the venting piston rod down, and the tension spring pushes the movable plug plate down, allowing gas from the air ring cylinder to continuously flow into the top cylinder. The air-blocking rod passes through the interior of the movable plug plate, and the gas is discharged from the exhaust heat dissipation hole to dissipate heat from the insulating adapter seat. When the regulating busbar becomes longer and the bending angle of the multiple copper plates is larger, the resistance of the current passing through is smaller and no auxiliary cooling is required. The larger amount of gas in the double-headed air cylinder provides stable support for the support, realizing flexible heat dissipation according to different working conditions. This ensures the electrical performance and mechanical stability of the busbar bridge under different operating conditions. When the gas in the double-headed air cylinder increases, the expansion rubber at the gear teeth expands through the air supply pipe, increasing the contact area with the connecting rack, improving the fit between the two, suppressing the vibration of the connecting rack, optimizing the transmission effect of the gear and the connecting rack, reducing noise and wear during the transmission process, and improving the operating accuracy and reliability of the regulating component. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0023] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0024] Figure 3 This is a schematic diagram of the structure of the multi-section copper plate in this invention;

[0025] Figure 4 This is a schematic diagram of the support structure in this invention;

[0026] Figure 5 This is a schematic cross-sectional view of the double-headed air cylinder in this invention;

[0027] Figure 6 For the present invention Figure 5 Enlarged structural diagram at point A;

[0028] Figure 7 This is a schematic cross-sectional view of the top cylinder in this invention;

[0029] Figure 8 For the present invention Figure 7 Enlarged structural diagram at point B;

[0030] Figure 9 This is a schematic cross-sectional view of the gas ring structure in this invention;

[0031] Figure 10 This is a schematic diagram of the exploded structure of the gas ring and rotating rod in this invention.

[0032] In the diagram: 100, shell; 101, busbar; 102, insulating support; 103, multi-section copper plate; 104, protective telescopic plate; 200, insulating adapter; 201, telescopic top plate; 202, gear; 203, bracket; 204, connecting plate; 205, crank; 206, rotating rod; 207, drive motor; 208, connecting rack; 300, double-headed air pump; 301, piston rod; 302, spring sleeve; 303, top cylinder; 3 04. Gas ring cylinder; 305. Pressure gauge; 306. Air pump; 307. Movable plug; 308. Vent piston rod; 309. Positioning rod; 310. Tension spring; 311. Air-blocking rod; 312. Exhaust and heat dissipation hole; 313. Positioning ring; 314. Connecting hole; 315. Slide rod; 316. Spring; 317. Straight groove; 318. Support; 400. Gas ring; 401. Air vent; 402. Air supply pipe; 403. Expanding rubber. Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] Example 1: Please refer to Figures 1-3The present invention provides a technical solution: an adjustable low-voltage side insulated busbar bridge, comprising two housing sections 100 and a busbar 101 disposed therein, and multiple copper plates 103 connected to the middle of the busbar 101. Multiple insulating support seats 102 for supporting the busbar 101 are fixedly connected inside the two housing sections 100. The length of the busbar 101 can be adjusted by setting multiple copper plates 103 to adapt to different usage environments.

[0035] It also includes an insulating adapter 200, which is connected to each bend of the multi-section copper plate 103. Inside the housing 100, there is a support 203 fixedly connected to the lower insulating adapter 200. The tops of both housing sections 100 are connected by a telescopic top plate 201, which restricts the upper insulating adapter 200. Inside the housing 100, there is an adjustment assembly for driving the support 203 to move and change the bending angle of the multi-section copper plate 103. The insulating adapter 200 is positioned at each bend of the multi-section copper plate 103... The fold can be supported to reduce the deformation of the multi-section copper plate 103 when it is bent. The support 203 is connected to the insulating adapter 200 at the bottom. When used in conjunction with the adjustment component, the height of the support 203 can be stably raised or lowered to adjust the bending angle of the multi-section copper plate 103. When the height of the support 203 is raised, the bending angle of the multi-section copper plate 103 connected to it will increase. At this time, the telescopic top plate 201 restricts the insulating adapter 200 located above, so that the bending of the multi-section copper plate 103 is restricted and its bending regularity is improved.

[0036] Please see Figures 3-5 Furthermore, the adjustment assembly includes a connecting plate 204 fixedly connected inside the two housing sections 100. Both sides of the support 203 are rotatably connected to cranks 205 rotatably connected to the connecting plate 204. Two piston rods 301 are fixedly connected to the tops of the two connecting plates 204 respectively. Connecting racks 208 are fixedly connected inside the two connecting plates 204. Gears 202 that mesh with the two connecting racks 208 are provided inside the housing 100. By connecting the connecting plate 204 to the two housing sections 100, the distance between the two housing sections 100 is adjusted while driving the support 203 to move. The rotation of the rotating rod 206 drives the gears 202 to rotate, causing the two connecting racks 208 to move, thereby causing the two connecting plates 204 to move in opposite directions, driving the cranks 205 to tilt and change the position of the support 203.

[0037] Both sides of the two sections of the housing 100 are connected by protective telescopic plates 104. The two protective telescopic plates 104 are rotatably connected to a rotating rod 206 for supporting the gear 202. A drive motor 207 for driving the rotating rod 206 to rotate is fixedly connected to one side of the protective telescopic plate 104. The telescopic top plate 201 and the protective telescopic plates 104 can effectively protect the multi-section copper plate 103 from accidental contact. The telescopic ends of the telescopic top plate 201 and the protective telescopic plates 104 are connected to the housing 100.

[0038] Specifically, when it is necessary to adjust the length of the busbar 101 during use, the drive motor 207 is turned on, which drives the rotating rod 206 to rotate, causing the gear 202 to mesh with the two connecting racks 208. This causes the crank 205 to tilt, raising the support 203, which in turn pushes the insulating adapter 200 at the bottom to move and tilt the multi-section copper plate 103 connected to the other insulating adapter 200, thereby lengthening it and adjusting the length of the busbar 101. At this time, the height of the insulating adapter 200 is limited by the telescopic top plate 201, thus limiting the tilt angle of the multi-section copper plate 103.

[0039] In summary, by setting multiple copper plates 103 to connect the middle of the busbar 101, the length of the busbar 101 can be adjusted according to different usage environments, greatly improving the versatility and adaptability of the busbar bridge. It can meet the installation and usage needs of various scenarios, reducing installation difficulties or the cost and time of re-customizing the busbar bridge due to busbar length mismatch. The insulating adapter 200 is connected to each bend of the multiple copper plates 103, providing additional support for the multiple copper plates 103, mitigating the deformation of the multiple copper plates 103 during bending, enhancing the mechanical stability of the multiple copper plates 103, and reducing the risk of electrical performance degradation or damage caused by bending deformation. The bracket 203 is connected to the insulating adapter 200 located at the bottom. By adjusting the component to drive the bracket 203 to move, the bending angle of the multiple copper plates 103 can be stably changed. When the height of the support 203 is increased, the bending angle of the multi-section copper plate 103 connected to it increases. At the same time, the telescopic top plate 201 restricts the insulating adapter 200 located above, thus restricting the bending of the multi-section copper plate 103, improving the regularity of the bending of the multi-section copper plate 103, and ensuring the structural stability and electrical performance consistency of the bus bridge during the adjustment process.

[0040] Example 2: Please refer to Figures 5-7The present invention also provides a technical solution, which differs from the technical solution of embodiment one as follows: an adjustable low-voltage side insulated busbar bridge, further comprising a double-headed air cylinder 300, which is disposed below the support 203, and both ends of the air cylinder 300 are slidably connected to piston rods 301 adapted to them. The piston rods 301 operate synchronously with the adjustment component. The top of the double-headed air cylinder 300 is connected to a top cylinder 303, and the top of the top cylinder 303 is provided with a venting piston rod 308 connected to the support 203. The outer surface of the top cylinder 303 is fitted with a gas storage ring cylinder 304. A pressure gauge 305 is fixedly connected to one side of the gas ring cylinder 304, and the pressure gauge 305 is used to detect the gas pressure inside the gas ring cylinder 304. An air pump 306 for supplying air to the gas ring cylinder 304 is fixedly connected to the other side of the gas ring cylinder 304, and the interior of the top cylinder 303 is provided with... A balancing component is provided to supply gas from the gas ring cylinder 304 to its interior based on the moving distance of the piston rod 301. The top cylinder 303 is also equipped with a heat dissipation component that supplies gas through the venting piston rod 308 to the support 203 for discharge, thereby cooling the insulating adapter 200 located at the bottom. By setting the balancing component, the gas in the double-headed gas cylinder 300 can be continuously replenished according to the position of the support 203, thereby achieving a constant gas level. In cooperation with the piston rod 301, it can effectively improve stability while increasing the resistance of the piston rod 301's reset, achieving a certain degree of shock absorption and suppressing the vibration of the multi-section copper plate 103. The heat dissipation component allows the gas to be discharged to cool the insulating adapter 200, assisting in cooling the multi-section copper plate 103 when it is in a high-resistance environment.

[0041] Please see Figures 7-9 Furthermore, the balancing assembly includes a positioning ring 313 fixedly connected inside the top cylinder 303. The positioning ring 313 has multiple connecting holes 314 that communicate with the top cylinder 303 through multiple air supply ring cylinders 304. Each of the multiple connecting holes 314 has a sliding rod 315 slidably connected inside, and each of the multiple sliding rods 315 has a straight groove 317 that matches the connecting hole 314. The top cylinder 303 has a straight groove 317 that can abut against the multiple sliding rods 315. By setting the straight groove 317 in the sliding rod 315, the air supply switch of the connecting hole 314 can be controlled. When the two piston rods 301 move away from each other, a negative pressure will be generated in the double-headed air cylinder 300, which will drive the movable plug 307 to move down, thereby abutting against the multiple sliding rods 315, so that the connecting hole 314 is opened to allow gas to pass through, thereby realizing the gas supply and filling the gas gap in the double-headed air cylinder 300.

[0042] Please see Figures 7-10Furthermore, the heat dissipation assembly includes a tension spring 310 disposed inside the top cylinder 303, with the top of the tension spring 310 fixedly connected to the venting piston rod 308 and the bottom of the tension spring 310 fixedly connected to the movable plug 307. The movable plug 307 has a through hole for gas to pass through, and a positioning rod 309 is fixedly connected inside the venting piston rod 308. The bottom of the positioning rod 309 is fixedly connected to a blocking rod 311 adapted to the through hole of the movable plug 307. The top of the venting piston rod 308 is connected to the support 203 through the support 318 to supply gas to the support 203. By setting the blocking rod 311, when the venting piston rod 308 gradually approaches the movable plug 307, the blocking rod 311 can completely pass through the interior of the movable plug 307, so that the positioning rod 309 is located inside the movable plug 307, thereby enabling gas to pass through.

[0043] Among them, the outer surface of the piston rod 301 is fitted with a sleeve spring 302 for self-reset, and the outer surface of the multiple slide rods 315 is fitted with springs 316 for self-reset. The top of the support 203 is provided with multiple exhaust and heat dissipation holes 312, which allow gas to be discharged to dissipate heat from the insulating adapter 200.

[0044] Furthermore, both the rotating rod 206 and the gear 202 are constructed with interconnected cavities. The outer surface of the rotating rod 206 is provided with a vent hole 401 communicating with its cavity. Both sides of the double-headed air cylinder 300 are connected to air supply pipes 402, and one end of the air supply pipe 402 is fixedly connected to an air ring 400 that is slidably connected to the outer surface of the rotating rod 206. The air ring 400 is located on the outer surface of the vent hole 401. The teeth of the gear 202 are provided with expandable rubber 403. By providing expandable rubber 403, the shock absorption effect can be further improved. When the gas in the double-headed air cylinder 300 increases, air is supplied to the rotating rod 206 through the air supply pipe 402, thereby causing multiple expandable rubbers 403 to expand and increase the contact area between them and the connecting rack 208. At the same time, when the gas in the double-headed air cylinder 300 increases, it means that the bending angle of the multiple copper plates 103 is larger, and at this time, its rigid support force is smaller.

[0045] It is worth mentioning that when the adjusting busbar 101 becomes longer, the bending angle of the multi-section copper plate 103 is larger. At this time, the resistance generated when the current passes through the multi-section copper plate 103 is smaller and no auxiliary cooling is required. However, its supporting rigidity is lower. At this time, the gas in the double-headed air cylinder 300 is more, which will provide more stable support for the support 203 and achieve stability. When the adjusting busbar 101 becomes shorter, the bending angle of the multi-section copper plate 103 becomes smaller. At this time, the current passing through the multi-section copper plate 103 generates high resistance and heats up. At the same time, due to the change in its angle, the supporting rigidity is enhanced. The downward movement of the support 203 will push the venting piston rod 308 downward, causing the tension spring 310 to push the movable plug 307 downward and continuously contact the multiple sliding rods 315. Meanwhile, the gas in the air supply ring cylinder 304 is continuously discharged into the interior of the top cylinder 303, and the air blocking rod 311 will pass through the interior of the movable plug 307. The gas supply is continuously discharged from the exhaust heat dissipation hole 312.

[0046] Specifically, when the connecting plate 204 moves, it will cause the piston rod 301 to move along with it, thereby drawing gas out of the double-headed air cylinder 300, which in turn causes the movable plug 307 to move downward. At the same time, when the sleeve spring 302 is raised, it will cause the venting piston rod 308 to move upward, thereby pulling the movable plug 307. As the piston rod 301 continues to move, it will cause the movable plug 307 to move downward and abut against multiple sliding rods 315, so that the straight groove 317 inside it coincides with the connecting hole 314. The gas in the air supply ring cylinder 304 is discharged through the connecting hole 314 to the internal compensation double-headed air cylinder 303. The gas inside the cylinder 300 increases the support strength of the support 203. The pressure gauge 305 detects the gas inside the gas ring cylinder 304. When the gas is insufficient, it drives the air pump 306 to supply gas into the gas ring cylinder 304. When the gas inside the dual-headed air cylinder 300 increases, it is delivered to the inside of the gas ring 400 through the air supply pipe 402. This allows the gas to enter the rotating rod 206 through multiple air passages 401 and then fill the gear 202. This causes the expansion rubber 403 at the teeth of the gear 202 to expand, thereby improving the fit with the connecting rack 208 and suppressing its vibration. When it is necessary to reduce the pressure, the pressure gauge 305 detects the gas inside the gas ring cylinder 304. When the gas is insufficient, it drives the air pump 306 to supply gas into the gas ring cylinder 304. When the gas is increased ... cylinder 400. This allows the gas to enter the rotating rod 206 through multiple air passages 401 and then fill the gear 202. This causes the expansion rubber 403 at the teeth of the gear 202 to expand, thereby improving the fit with the connecting rack 208 and suppressing its vibration. When it is necessary to reduce the pressure, the pressure gauge 305 When the length of busbar 101 is adjusted, the piston rod 301 can be reset by reversing the drive rod 206, causing the support 203 to move downwards and pulling the insulating adapter 200 below, thereby increasing the tilt angle of the multi-section copper plate 103 and shortening it. At this time, the internal space of the double-headed air cylinder 300 becomes smaller, causing the gas to push the movable plug 307 upwards. Simultaneously, the air-passing piston rod 308 moves downwards, and the transmission spring 310 compresses the movable plug 307 downwards. At this time, the air-blocking rod 311 will pass through the interior of the movable plug 307, allowing the double-headed air cylinder 300 to pass through the movable plug 307. The interior of the valve is connected to the interior of the venting piston rod 308, so that excess gas is transported to the interior of the support 203 through the venting piston rod 308, and then discharged through multiple exhaust heat dissipation holes 312 to dissipate heat on the insulating adapter 200. Under the continuous downward movement of the support 203 and the compression of the tension spring 310, the movable plug 307 will also continuously compress multiple slide rods 315, so that gas is continuously discharged through the connecting hole 314 and transported to the interior of the support 203 through the venting piston rod 308, and then discharged through the exhaust heat dissipation holes 312 to continuously dissipate heat on the insulating adapter 200.

[0047] In summary, when the gas inside the double-headed air cylinder 300 increases, air is supplied to the rotating rod 206 through the air supply pipe 402, causing the expansion rubber 403 at the teeth of the gear 202 to expand, increasing the contact area with the connecting rack 208, and further enhancing the shock absorption effect. Especially when the bending angle of the multi-section copper plate 103 is large and the rigid support force is small, it provides more stable support for the bus bridge. The heat dissipation component can achieve different heat dissipation effects according to the length adjustment of the bus 101. When the bus 101 is shortened and the bending angle of the multi-section copper plate 103 is smaller, the current passing through generates high resistance and heats up. The support 203 moves down, pushing the venting piston rod 308 down. The tension spring 310 pushes the movable plug 307 down, causing the gas in the air ring cylinder 304 to continuously discharge into the top cylinder 303. The air blocking rod 311 passes through the interior of the movable plug 307, and the gas is discharged from the exhaust heat dissipation hole 312 to dissipate heat from the insulating adapter 200. When the regulating busbar 101 becomes longer and the bending angle of the multi-section copper plate 103 is larger, the current passes through a low-resistance busbar without the need for auxiliary cooling. The large amount of gas in the double-headed air cylinder 300 provides stable support for the support 203, enabling flexible heat dissipation according to different working conditions. This ensures the electrical performance and mechanical stability of the busbar bridge under different operating conditions. When the gas in the double-headed air cylinder 300 increases, the expansion rubber 403 at the teeth of the gear 202 expands through the air supply pipe 402, increasing the contact area with the connecting rack 208, improving the fit between the two, suppressing the vibration of the connecting rack 208, optimizing the transmission effect between the gear 202 and the connecting rack 208, reducing noise and wear during transmission, and improving the operating accuracy and reliability of the regulating components.

[0048] Example 3: Please refer to Figures 1-10 The present invention also provides a technical solution, which differs from the technical solution of Embodiment 1 as follows: a method for using an adjustable low-voltage side insulated busbar bridge, comprising the following steps:

[0049] S1. When it is necessary to adjust the length of the busbar 101 during use, the drive motor 207 is turned on, which drives the rotating rod 206 to rotate, so that the gear 202 meshes with the two connecting racks 208. As a result, the crank 205 tilts, which raises the support 203, thereby pushing the insulating adapter 200 at the bottom to move and tilt the multi-section copper plate 103 connected to the other insulating adapter 200, thereby lengthening it and adjusting the length of the busbar 101. At this time, the height of the insulating adapter 200 is limited by the telescopic top plate 201, thereby limiting the tilt angle of the multi-section copper plate 103 at various points.

[0050] S2. Simultaneously, when the connecting plate 204 moves, it will drive the piston rod 301 to move along with it, thereby drawing gas out of the double-headed air cylinder 300, and thus driving the movable plug 307 to move down. At the same time, when the sleeve spring 302 is lifted, it will drive the ventilation piston rod 308 to move up, thereby pulling the movable plug 307. As the piston rod 301 continues to move, it will drive the movable plug 307 to move down and abut against multiple sliding rods 315, so that the straight groove 317 inside it coincides with the connecting hole 314. The gas in the air supply ring cylinder 304 is discharged to the inside of the top cylinder 303 through the connecting hole 314 to compensate for the gas in the double-headed air cylinder 300, thereby improving the support strength of the support 203. The pressure gauge 305 detects the gas in the air ring cylinder 304. When the gas is insufficient, it will drive the air pump 306 to run and supply gas into the air ring cylinder 304.

[0051] S3. When the gas in the double-headed air cylinder 300 increases, it will be transported to the air ring 400 through the air supply pipe 402, so that the gas enters the rotating rod 206 through multiple air passages 401 and then fills the gear 202, causing the expansion rubber 403 at the teeth of the gear 202 to expand, thereby improving the fit with the connecting rack 208 and suppressing its vibration.

[0052] S4. When the length of the busbar 101 needs to be reduced, the piston rod 301 can be reset by reversing the drive rod 206, causing the support 203 to move downward and pull the insulating adapter 200 below, thereby increasing the tilt angle of the multi-section copper plate 103 to shorten it. At this time, the internal space of the double-headed air cylinder 300 becomes smaller, causing the gas to push the movable plug 307 upward. At the same time, the air-passing piston rod 308 moves downward and the transmission spring 310 squeezes the movable plug 307 downward. At this time, the air-blocking rod 311 will pass through the interior of the movable plug 307, allowing the double-headed air cylinder 300 to pass through the movable plug. The interior of the movable plug 307 is connected to the interior of the venting piston rod 308, so that excess gas is transported to the interior of the support 203 through the venting piston rod 308, and then discharged through multiple exhaust heat dissipation holes 312 to dissipate heat from the insulating adapter 200. As the support 203 continues to move downward and is compressed by the tension spring 310, the movable plug 307 will also continuously compress multiple slide rods 315, so that gas is continuously discharged through the connecting hole 314 and transported to the interior of the support 203 through the venting piston rod 308, and then discharged through the exhaust heat dissipation holes 312 to continuously dissipate heat from the insulating adapter 200.

[0053] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0054] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An adjustable low-voltage side insulated busbar bridge, comprising two housing sections (100) and a busbar (101) disposed therein, and multiple copper plates (103) connected to the middle of the busbar (101), characterized in that, Also includes: An insulating adapter (200) is connected to each bend of a multi-section copper plate (103). The housing (100) has a support (203) fixedly connected to the lower insulating adapter (200). The tops of the two sections of the housing (100) are connected by a telescopic top plate (201), which is used to restrict the upper insulating adapter (200). The housing (100) has an adjustment component inside for driving the support (203) to move and change the bending angle of the multi-section copper plate (103). A double-headed air cylinder (300) is located below a support (203), and both ends of the cylinder are slidably connected to piston rods (301) adapted to it. The piston rods (301) operate synchronously with the adjustment assembly. The top of the double-headed air cylinder (300) is connected to a top cylinder (303), and the top of the top cylinder (303) is provided with a venting piston rod (308) connected to the support (203). The outer surface of the top cylinder (303) is fitted with a gas ring cylinder (304) for storing gas. The inside of the top cylinder (303) is provided with a balancing assembly that supplies gas from the gas ring cylinder (304) to its interior according to the moving distance of the piston rod (301). The inside of the top cylinder (303) is also provided with a heat dissipation assembly that supplies gas through the venting piston rod (308) to the support (203) for discharge, thereby cooling the insulating adapter (200) located at the bottom.

2. The adjustable low-voltage side insulated busbar bridge according to claim 1, characterized in that: The adjustment assembly includes a connecting plate (204) fixedly connected inside the two housing sections (100). Both sides of the support (203) are rotatably connected to cranks (205) that are rotatably connected to the connecting plate (204). Two piston rods (301) are fixedly connected to the top of the two connecting plates (204). A connecting rack (208) is fixedly connected inside the two connecting plates (204). A gear (202) that meshes with the two connecting racks (208) is provided inside the housing (100).

3. An adjustable low-voltage side insulated busbar bridge according to claim 2, characterized in that: The balancing assembly includes a positioning ring (313) fixedly connected inside the top cylinder (303). The positioning ring (313) has multiple connecting holes (314) that communicate with the top cylinder (303) through multiple air supply ring cylinders (304). Each of the multiple connecting holes (314) is slidably connected to a slide rod (315). Each of the multiple slide rods (315) has a straight groove (317) that matches the connecting hole (314). The top cylinder (303) has a straight groove (317) that can abut against the multiple slide rods (315) slidably connected inside.

4. An adjustable low-voltage side insulated busbar bridge according to claim 3, characterized in that: The heat dissipation assembly includes a tension spring (310) disposed inside the top cylinder (303), and the top of the tension spring (310) is fixedly connected to the venting piston rod (308). The bottom of the tension spring (310) is fixedly connected to the movable plug (307). The movable plug (307) has a through hole for gas to pass through. The venting piston rod (308) is fixedly connected to a positioning rod (309). The bottom of the positioning rod (309) is fixedly connected to a blocking rod (311) that is adapted to the through hole of the movable plug (307). The top of the venting piston rod (308) is connected to the support (203) through a support (318) for gas to be transported to the support (203).

5. An adjustable low-voltage side insulated busbar bridge according to claim 1, characterized in that: A pressure gauge (305) is fixedly connected to one side of the gas ring cylinder (304), and the pressure gauge (305) is used to detect the air pressure inside the gas ring cylinder (304). An air pump (306) for supplying air to the gas ring cylinder (304) is fixedly connected to the other side of the gas ring cylinder (304).

6. An adjustable low-voltage side insulated busbar bridge according to claim 3, characterized in that: The piston rod (301) is fitted with a spring (302) for self-reset on its outer surface, and the slide rods (315) are fitted with springs (316) for self-reset on their outer surfaces. The support (203) has multiple exhaust and heat dissipation holes (312) on its top.

7. An adjustable low-voltage side insulated busbar bridge according to claim 2, characterized in that: Both sides of the two sections of the housing (100) are connected by protective telescopic plates (104). A rotating rod (206) for supporting the gear (202) is rotatably connected between the two protective telescopic plates (104). A drive motor (207) for driving the rotating rod (206) to rotate is fixedly connected to one side of the protective telescopic plate (104).

8. An adjustable low-voltage side insulated busbar bridge according to claim 7, characterized in that: Both the rotating rod (206) and the gear (202) are constructed with interconnected cavities. The outer surface of the rotating rod (206) is provided with a vent hole (401) communicating with its cavity. Both sides of the double-headed air cylinder (300) are connected to air supply pipes (402), and one end of the air supply pipe (402) is fixedly connected to an air ring (400) that is slidably connected to the outer surface of the rotating rod (206). The air ring (400) is located on the outer surface of the vent hole (401). The teeth of the gear (202) are provided with expandable rubber (403).

9. An adjustable low-voltage side insulated busbar bridge according to claim 1, characterized in that: Both sections of the housing (100) are fixedly connected to a plurality of insulating support seats (102) for supporting the busbar (101).

10. A method of using an adjustable low-voltage side insulated busbar bridge, as described in any one of claims 1-9, characterized in that... Includes the following steps: S1. When it is necessary to adjust the length of the busbar (101) during use, the bending angle of the multi-section copper plate (103) can be changed by opening the adjustment component. S2. At the same time, when the connecting plate (204) moves, it will drive the piston rod (301) to move together with it, thereby drawing gas from the double-headed air cylinder (300) and replenishing the gas inside the balance component, thereby increasing the support strength of the support (203). S3. When the length of the busbar (101) needs to be reduced, the heat dissipation component operates to supply gas to the interior of the bracket (203), and then discharges to continuously dissipate heat to the insulating adapter (200).

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