CN118137399A - Adjustable bus duct with overload protection function and application method thereof - Google Patents
Adjustable bus duct with overload protection function and application method thereof Download PDFInfo
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- CN118137399A CN118137399A CN202410544737.3A CN202410544737A CN118137399A CN 118137399 A CN118137399 A CN 118137399A CN 202410544737 A CN202410544737 A CN 202410544737A CN 118137399 A CN118137399 A CN 118137399A
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- 238000000034 method Methods 0.000 title claims abstract description 31
- 238000009434 installation Methods 0.000 claims abstract description 56
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 24
- 229910052802 copper Inorganic materials 0.000 claims abstract description 24
- 239000010949 copper Substances 0.000 claims abstract description 24
- 230000001012 protector Effects 0.000 claims description 62
- 238000001125 extrusion Methods 0.000 claims description 21
- 230000000694 effects Effects 0.000 claims description 12
- 230000006835 compression Effects 0.000 claims description 9
- 238000007906 compression Methods 0.000 claims description 9
- 230000000087 stabilizing effect Effects 0.000 claims description 7
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000011900 installation process Methods 0.000 abstract description 8
- 238000010616 electrical installation Methods 0.000 description 15
- 238000010586 diagram Methods 0.000 description 9
- 239000000428 dust Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
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Abstract
The invention discloses an adjustable bus duct with overload protection and a use method thereof, comprising a bus duct body, wherein a steering adjusting mechanism is electrically connected to the middle position of the bus duct body, the steering adjusting mechanism comprises an adjusting convex block, an adjusting concave block and a locking component, and the convex part of the adjusting convex block is inserted into the concave of the adjusting concave block. According to the invention, the middle part of the existing bus duct is provided with the steering adjusting mechanism, so that the bus duct can be adjusted and fixed at multiple angles according to the field installation requirement in the installation process, the working efficiency in the installation process is improved, and meanwhile, the steering adjusting mechanism is provided with the overload protection mechanism, so that when the bus duct works for a long time in an electrified state, the whole bus duct can be protected, the copper bar in the bus duct is prevented from being damaged at high temperature due to overlarge current, the disconnection of the whole circuit can be ensured, and the economic loss of the whole circuit is reduced.
Description
Technical Field
The invention relates to the technical field of application of an adjustable bus duct, in particular to an adjustable bus duct with overload protection and a use method thereof.
Background
With the advent of modern engineering facilities and equipment, the power consumption of various industries is rapidly increased, especially the appearance of numerous high-rise buildings and large-scale factory workshops, the traditional cables serving as power transmission wires cannot meet the requirements in a large-current conveying system, the parallel use of multiple cables brings inconvenience to field installation construction connection, and the plug-in bus duct serves as a novel power distribution wire, and compared with the traditional cables, the plug-in bus duct fully shows the superiority and safety and reliability in the process of large-current conveying, so that the plug-in bus duct can widely move.
When the bus duct is manufactured and processed, processing production of different shapes is generally carried out according to the requirements of installation environments, so that production costs caused by different requirements are different, further economic costs needed to be born in the later maintenance process are different, the bus duct of different shapes is spliced in the installation process, reasonable steering adjustment cannot be carried out according to the requirements, the whole installation process is difficult, meanwhile, when the bus ducts are installed and used, the whole overload protection function of the bus duct is generally arranged in a switch cabinet and cannot control the bus duct of the single bus duct, so that economic losses are caused to surrounding bus ducts in the process of high-temperature damage of the single bus duct, and larger area losses are caused.
Disclosure of Invention
The invention aims to solve the technical problem of providing an adjustable bus duct with overload protection and a use method thereof, wherein a steering adjusting mechanism is arranged in the middle of the existing bus duct, so that the bus duct can be adjusted and fixed at multiple angles according to the on-site installation requirement in the installation process, the working efficiency in the installation process is improved, and meanwhile, the steering adjusting mechanism is provided with the overload protection mechanism, so that when the bus duct works for a long time in an electrified state, the whole bus duct can be protected, the copper bars in the bus duct are prevented from being damaged at high temperature due to overlarge current, the disconnection of the whole circuit can be ensured, and the economic loss of the whole circuit is reduced.
In order to solve the technical problems, on one hand, the invention adopts a technical scheme that: the utility model provides an adjustable bus duct with overload protection, including the bus duct body, the middle part position electric connection of bus duct body has steering adjustment mechanism, steering adjustment mechanism includes adjusting lug, regulation concave block and locking subassembly, just adjust lug protruding portion inserts the concave part of adjusting concave block, simultaneously locking subassembly runs through adjusting lug with the intersection department of adjusting concave block, just adjust lug with the adjusting concave block is hinged joint through locking subassembly, the protruding part lateral wall of adjusting lug inserts and installs spacing antiskid subassembly, just spacing antiskid subassembly's lateral wall is closely laminated with the inside wall of adjusting concave block concave part, adjusting lug with the opposite lateral wall structure of adjusting concave block is the same, equal bolted connection has electric connection subassembly simultaneously;
The front wall electric grafting of adjusting concave piece has overload protection mechanism, overload protection mechanism includes the electric installation frame, the even swing joint of electric installation frame's inside wall has a plurality of extrusion formula electric connection structure, and is a plurality of extrusion formula electric connection structure electric connection has overload protector, just overload protector is the block with the electric installation frame and is connected, the lateral wall block of electric installation frame is connected with block formula electric connection area, just block formula electric connection area is electric connection with overload protector, block formula electric connection area keep away from the terminal surface of electric installation frame with adjust the lug inside electric connection subassembly is electric grafting setting.
The invention is further provided with: the bus duct is characterized in that the outer wall of the bus duct body is close to the middle part, the protection frames are symmetrically and slidably connected at the disconnection position, the opposite end faces of the adjusting protruding blocks and the adjusting concave blocks are close to the outer wall, the protection connecting grooves are formed in the positions, close to the outer wall, of the bus duct body, and the two protection connecting grooves are respectively in plug-in connection with the end faces of the two protection frames.
Through above-mentioned technical scheme, be convenient for with turning to the protection of junction when adjustment mechanism and bus duct body are connected, improve the protection effect in use.
The invention is further provided with: the locking assembly comprises a locking screw sleeve penetrating through the adjusting protruding block and the adjusting concave block, a stabilizing spring is connected to the inner wall of the locking screw sleeve close to the end face in a clamping mode, a locking bolt is connected to the end face of the locking screw sleeve in a threaded mode, and the stabilizing spring is sleeved with the outer wall of the locking bolt.
Through above-mentioned technical scheme, utilize specific instrument to rotate the locking bolt, make its cooperation locking swivel nut extrude the regulation concave block to make the concave inner wall of regulation concave block extrude each other fixedly with the protruding lateral wall of regulation lug, and more firm under the antiskid effect of two limiting plates, thereby accomplish the effect of different angle adjustment.
The invention is further provided with: the limiting anti-slip assembly comprises two limiting plates, the two limiting plates are movably mounted in settling tanks formed in two sides of the protruding portion of the adjusting lug, the two limiting plates are fixedly connected with a plurality of anti-slip strips in the position away from each other, the two limiting plates are fixedly connected with a plurality of evenly distributed fixing columns on the opposite walls of the limiting plates, the two groups of fixing columns are correspondingly inserted into a plurality of movable holes formed in two sides of the protruding portion of the adjusting lug, the two groups of fixing columns are sleeved with stress springs on the outer walls of the fixing columns, the stress springs are mounted in the movable holes, a group of fixing columns are fixedly connected with sliding blocks close to the end face positions, the other group of fixing columns are fixedly connected with sliding grooves close to the end face positions, and the fixing columns are in sliding connection with the sliding grooves formed in the fixing columns through the sliding blocks.
Through the technical scheme, the limiting plates inside are utilized under the elastic action of the stress springs, so that the two limiting plates extrude the concave inner walls of the adjusting concave blocks on two sides, meanwhile, the sliding blocks are utilized to limit and slide inside the sliding grooves, the two limiting plates can be limited, the adjusting convex blocks and the adjusting concave blocks are prevented from loosening on the outer wall of the locking swivel nut, and therefore workers can conveniently position in advance during adjustment.
The invention is further provided with: the electric connection assembly comprises an installation shell, the installation shell is connected with the inside of an installation cavity formed in the side wall of the adjusting lug through bolts, a plurality of first fixing grooves are uniformly formed in the installation shell, a plurality of second fixing grooves are uniformly formed in the side wall of the installation shell, a plurality of connecting copper plates are connected with the inner parts of the first fixing grooves in a clamping mode, L-shaped extension rods are fixedly connected with the side walls of the connecting copper plates, the end faces of the L-shaped extension rods are fixedly connected with electric connection columns, the L-shaped extension rods are respectively connected with the second fixing grooves in a clamping mode, positioning connection grooves are formed in the positions, close to the installation cavity, of the front wall of the adjusting lug, a plurality of through holes are formed in the inner parts of the positioning connection grooves, and the electric connection columns penetrate through the front wall of the adjusting lug through the through holes.
Through above-mentioned technical scheme, utilize a plurality of first fixed slots to carry out the block of counterpoint to a plurality of connection copper fixed to can connect fixedly when connecting the copper bar of bus duct body inside, and a plurality of L type extension bars can take a plurality of electric connection posts to fix in the inside of second fixed slot, thereby can firmly be stable when the installation, conveniently peg graft the operation.
The invention is further provided with: the back wall of electrical installation frame is close to the lateral wall position and has seted up a plurality of first grafting installing ports, just electrical installation frame is the electric connection subassembly of a plurality of first grafting installing ports and regulation concave block internally mounted and is the electric grafting setting, just extrusion formula electric connection structure extends to the inside of first grafting installing port, hidden groove has been seted up to the lateral wall of electrical installation frame, a plurality of corresponding holes have evenly been seted up to the inside of hiding groove, the top of electrical installation frame is close to the equal fixedly connected with hollow post of lateral wall corner, two the top bolted connection of hollow post has the shield, just the position that the hollow post was kept away from to the shield is bolted connection with electrical installation frame.
Through above-mentioned technical scheme, utilize a plurality of first grafting installing ports can install fixedly to inside extrusion formula electric connection structure to make things convenient for the electric installation frame to install fixedly, and utilize hiding the groove and can hide fixedly to supplementary ejector pad, improve the aesthetic property, a plurality of corresponding holes can carry out spacing removal to a plurality of electric grafting posts on the supplementary ejector pad simultaneously, improve the accuracy when pegging graft.
The invention is further provided with: the extrusion type electric connection structure comprises a connection rocker, the end face of the connection rocker extends to the inside of a first plug-in mounting port, a clamping groove is formed in the top of the connection rocker, which is close to the end face, a reset spring is connected in a clamping mode, the connection rocker is close to a rotating shaft fixedly connected with the middle position, the connection rocker is rotationally connected with an electric installation frame through the rotating shaft, an end face fixedly connected rocker connection gasket of the connection rocker, which is far away from the reset spring, is electrically connected with an electric connection assembly and an overload protector, and the end face of the connection rocker is electrically connected with the electric connection assembly.
Through above-mentioned technical scheme, utilize electric connection post after inserting can extrude the rotation with the connection wane of inside to make the other end of connecting the wane extrude fixedly with overload protection ware, improve the stability in use, and use reset spring can make the connection wane quick keep away from overload protection ware when dismantling.
The invention is further provided with: the top of overload protector is close to lateral wall position threaded connection and has a plurality of gasket bolts, overload protector keeps away from the lateral wall that connects the wane and evenly has offered a plurality of electric connection mouth, overload protector's top middle part position electric connection has protection switch, overload protector's top is close to back wall corner department and is provided with the voice broadcast mouth, overload protector's top is close to back wall position fixedly connected with warning light.
Through above-mentioned technical scheme, utilize a plurality of gasket bolts can be fixed a plurality of connection wanes on overload protection ware, can trigger the inside switch of overload protection ware simultaneously when internal current is too big to break the passageway with the bus duct body in order to protect whole circuit, and alarm lamp scintillation and dangerous alarm when breaking.
The invention is further provided with: the clamping type electric connection belt comprises a connection belt body, wherein the end face of the connection belt body is fixedly connected with a second plug-in mounting port, the second plug-in mounting port is electrically connected with an electric connection assembly of the internal installation of the adjusting lug, the connection belt body is far away from an auxiliary push block fixedly connected with the end face of the second plug-in mounting port, the side wall of the auxiliary push block is fixedly connected with a plurality of electric plug-in columns, the electric plug-in columns and the overload protector are electrically plug-in arranged, the bottom of the auxiliary push block is fixedly connected with a triangular plate, a pull rod is connected with the side wall of the triangular plate through bolts, the pull rod extends to the inside of the electric installation frame, a compression spring is sleeved on the outer wall of the pull rod, and the end face of the pull rod is connected with a baffle through threads.
Through the technical scheme, the auxiliary pushing block is pulled out of the plurality of electric plug-in posts, the overload protector is placed in the electric installation frame, the position of the overload protector, which is in an extrusion type electric connection structure, is lower than that of the connection seesaw, the auxiliary pushing block is loosened, the baffle plate is driven by the aid of the plurality of compression springs in the inner part to move by the aid of the auxiliary pushing block, and accordingly the electric plug-in posts are electrically plugged and fixed with the electric connection ports of the side wall of the overload protector, and the overload protector is installed and fixed.
In another aspect, a method for using an adjustable bus duct with overload protection is provided, including the following steps:
s1, firstly, pre-installing a steering adjusting mechanism on a section of a fixed bus duct body, enabling copper bars in the bus duct body to be inserted into an electric connection assembly, enabling the copper bars and a plurality of corresponding connection copper plates to be mutually extruded and fixed, then sliding a protection frame on the bus duct body, enabling the protection frame to be clamped and fixed in a protection connection groove formed in the side wall of an adjusting concave block, and protecting a connection part;
S2, then, screw thread rotation loosening is carried out between the locking bolt and the locking screw sleeve, extrusion force of the convex part of the adjusting lug at the concave part of the adjusting concave block is eliminated, at the moment, under the elastic action of a plurality of stress springs, the two limiting plates extrude the concave inner walls of the adjusting concave block at two sides, and the adjusting lug and the adjusting concave block are prevented from loosening on the outer wall of the locking screw sleeve, so that workers can position in advance during adjustment;
S3, then, a worker rotates the adjusting lug on the locking swivel nut according to the angle required to rotate, and simultaneously, under the action of the limiting plates internally provided with a plurality of anti-slip strips, the limiting plates on two sides are extruded on the inner wall of the concave of the adjusting concave block by using the internal stress springs, so that the adjusted adjusting lug can be stable, and continuous rotation or reset rotation after adjustment at different angles is prevented;
S4, the locking bolt is rotated and locked through a specific tool, and the locking bolt is matched with the locking screw sleeve to extrude the adjusting concave block, so that the concave inner wall of the adjusting concave block and the convex side wall of the adjusting convex block are mutually extruded and fixed, the locking bolt is firmer under the anti-skid effect of the two limiting plates, and the effect of adjusting different angles is achieved;
S5, the same principle as that of the S1 is adopted to electrically connect the other section of the bus duct body to an electric connection assembly arranged in the adjusting lug, and meanwhile, the bus duct body is integrally installed and fixed;
s6, pulling out the plurality of electric plug-in posts through the auxiliary pushing block, putting the overload protector into the electric installation frame, enabling the position of the electric connection structure with the extrusion type to be lower than that of the connection rocker, loosening the auxiliary pushing block, enabling the baffle to drive the auxiliary pushing block connected with the end face of the pull rod to move by utilizing the plurality of compression springs in the electric connection structure, and enabling the plurality of electric plug-in posts to be electrically plugged and fixed with the electric connection ports on the side wall of the overload protector;
S7, then insert electric installation frame to the electric connection subassembly of adjusting concave piece internally mounted through first grafting installing port for a plurality of electric connection posts correspond electric connection with a plurality of first grafting installing port, inside electric connection post terminal surface extrudees to connecting the wane simultaneously, make the stable extrusion of another terminal surface of connecting the wane in overload protector' S lateral wall junction, and use the gasket bolt to fix connecting the wane on overload protector, carry out electric connection setting with the electric connection subassembly of adjusting lug internally mounted through the second grafting installing port at last, thereby form whole passageway, and can carry out the disconnection operation to the connection passageway through overload protector, thereby protect whole bus duct body.
The beneficial effects of the invention are as follows:
1. According to the adjustable bus duct with overload protection and the use method thereof, the steerable adjusting mechanism is arranged at the middle position of the existing bus duct, so that the bus duct can be adjusted and fixed at multiple angles according to the on-site installation requirement in the installation process, and the working efficiency in the installation process is improved;
2. According to the adjustable bus duct with overload protection and the use method thereof, the locking component and the limiting anti-slip component which are matched with each other are arranged in the steering adjusting mechanism, so that the bus duct can be kept fixed during rotation adjustment, and damage to the steering position of the bus duct caused by looseness is prevented;
3. According to the adjusting bus duct with overload protection and the use method thereof, the overload protection mechanism is arranged on the steering adjustment mechanism, so that when the bus duct works for a long time in an electrified state, the whole bus duct can be protected, the copper bars in the bus duct are prevented from being damaged at high temperature due to overlarge current, the disconnection of the whole circuit can be ensured, and the economic loss of the whole circuit is reduced.
Drawings
FIG. 1 is a first block diagram of an adjustable busway with overload protection and method of use thereof according to the present invention;
FIG. 2 is a second block diagram of an adjustable busway with overload protection and method of use thereof according to the present invention;
FIG. 3 is an exploded view of an adjustable busway with overload protection and method of use thereof according to the present invention;
FIG. 4 is a block diagram of an adjustable busway with overload protection and steering adjustment for a method of using the same in accordance with the present invention;
FIG. 5 is a block diagram of an adjustable busway with overload protection and a steering adjustment mechanism for use in the method of the present invention;
FIG. 6 is a block diagram of an adjustable busway with overload protection and an adjustable pocket for use in the method of the present invention;
FIG. 7 is a diagram of an adjustable busway with overload protection and an adjustable bump used in the method of using the same according to the present invention;
FIG. 8 is a first exploded view of a steering adjustment mechanism for an adjustable busway with overload protection and method of use thereof in accordance with the present invention;
FIG. 9 is a second exploded view of an adjustable busway with overload protection and a steering adjustment mechanism for use with the same in accordance with the present invention;
FIG. 10 is an exploded view of an adjustable busway with overload protection and locking assembly for use with the method of the present invention;
FIG. 11 is an exploded view of an adjustable busway with overload protection and a limited slip assembly for use in the method of using the same in accordance with the present invention;
FIG. 12 is a block diagram of an adjustable busway with overload protection and electrical connection assembly for use in the method of using the same in accordance with the present invention;
FIG. 13 is an exploded view of an electrical connection assembly of an adjustable busway with overload protection and method of use thereof according to the present invention;
FIG. 14 is a block diagram of an adjustable busway with overload protection and an overload protection mechanism for use in the method of the present invention;
FIG. 15 is a first exploded view of an overload protection mechanism for an adjustable busway with overload protection and method of use thereof in accordance with the present invention;
FIG. 16 is a second exploded view of an overload protection mechanism in an adjustable busway with overload protection and method of use thereof in accordance with the present invention;
Fig. 17 is an enlarged view at B in fig. 14;
FIG. 18 is a cross-sectional view of an adjustable busway with overload protection and a steering adjustment mechanism for use with the same in accordance with the present invention;
Fig. 19 is an enlarged view at a in fig. 18;
Fig. 20 is a diagram showing a connection structure between an extrusion type electrical connection structure and an overload protector in an adjustable bus duct with overload protection and a method for using the same.
In the figure:
1. A bus duct body; 11. a protective frame;
2. a steering adjustment mechanism;
21. an adjustment tab; 211. a settling tank; 212. a movable hole; 213. a mounting cavity; 214. a protective connecting groove; 215. positioning the connecting groove; 216. a through hole; 22. adjusting the concave block;
23. a locking assembly; 231. a locking screw sleeve; 232. a stabilizing spring; 233. a locking bolt;
24. a limit anti-slip component; 241. a limiting plate; 242. an anti-slip strip; 243. fixing the column; 244. a stress spring; 245. a slide block; 246. a chute;
25. An electrical connection assembly; 251. a mounting shell; 252. a first fixing groove; 253. a second fixing groove; 254. connecting a copper plate; 255. an L-shaped extension rod; 256. an electrical connection post;
3. overload protection mechanism;
31. an electrical mounting rack; 311. a first plug-in mounting port; 312. hiding the groove; 313. a corresponding hole; 314. a hollow column; 315. a dust cover;
32. Extrusion type electrical connection structure; 321. connecting a seesaw; 322. a clamping groove; 323. a return spring; 324. a rotating shaft; 325. the rocker is connected with the gasket;
33. An overload protector; 331. a spacer bolt; 332. an electrical connection port; 333. a protection switch; 334. a voice broadcast port; 335. an alarm lamp;
34. a clamping type electric connection belt; 341. a connecting belt body; 342. a second plugging mounting port; 343. an auxiliary pushing block; 344. an electrical plug post; 345. a triangle; 346. a pull rod; 347. a compression spring; 348. and a baffle.
Detailed Description
The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making clear and defining the scope of the present invention.
As shown in fig. 1-9, an adjustable bus duct with overload protection, including bus duct body 1, the middle part position electric connection of bus duct body 1 has steering adjustment mechanism 2, steering adjustment mechanism 2 includes adjusting projection 21, adjusting concave piece 22 and locking subassembly 23, the outer wall of bus duct body 1 is close to middle part disconnection position symmetry sliding connection has protection frame 11, the protection spread groove 214 has all been seted up to the opposite terminal surface that adjusting projection 21 and adjusting concave piece 22 are close to outer wall position, and two protection spread grooves 214 are the grafting setting with the terminal surface of two protection frames 11 respectively, the protection of junction when will turning to adjustment mechanism 2 and bus duct body 1 is connected is convenient for, the protection effect in use is improved.
As shown in fig. 8-10, the protruding portion of the adjusting projection 21 is inserted into the recess of the adjusting concave block 22, meanwhile, the locking component 23 penetrates through the intersection of the adjusting projection 21 and the adjusting concave block 22, the adjusting projection 21 and the adjusting concave block 22 are hinged through the locking component 23, the locking component 23 comprises a locking screw sleeve 231 penetrating through the adjusting projection 21 and the adjusting concave block 22, the inner wall of the locking screw sleeve 231 is close to the end face, and is connected with a stabilizing spring 232 in a clamping manner, the end face of the locking screw sleeve 231 is connected with a locking bolt 233 in a threaded manner, the stabilizing spring 232 and the outer wall of the locking bolt 233 are sleeved, the locking bolt 233 is rotationally locked by a specific tool, and the locking screw sleeve 231 is matched to extrude the adjusting concave block 22, so that the concave inner wall of the adjusting concave block 22 and the protruding side walls of the adjusting projection 21 are mutually extruded and fixed, and the locking screw sleeve 231 is firmer under the anti-skid effect of two limiting plates 241, and therefore the effect of different angle adjustment is achieved.
As shown in fig. 7, 8 and 11, the side wall of the protruding portion of the adjusting bump 21 is inserted and mounted with a limiting anti-slip component 24, and the side wall of the limiting anti-slip component 24 is tightly attached to the inner side wall of the recess of the adjusting concave block 22, the limiting anti-slip component 24 comprises two limiting plates 241, and the two limiting plates 241 are movably mounted in settling tanks 211 provided at two sides of the protruding portion of the adjusting bump 21, the surfaces of the two limiting plates 241 far away from each other are fixedly connected with a plurality of anti-slip strips 242, the opposite walls of the two limiting plates 241 are fixedly connected with a plurality of uniformly distributed fixed columns 243, and the opposite end surfaces of the two groups of fixed columns 243 are correspondingly inserted into a plurality of movable holes 212 provided at two sides of the protruding portion of the adjusting bump 21, the outer walls of the two groups of fixed columns 243 are sleeved with stress springs 244, meanwhile, the stress springs 244 are installed in the movable holes 212, the end face positions of one group of fixed columns 243 are close to the end face positions and fixedly connected with the sliding blocks 245, the end face positions of the other group of fixed columns 243 are close to the end face positions and are provided with the sliding grooves 246, one group of fixed columns 243 are in sliding connection with the sliding grooves 246 formed in the other group of fixed columns 243 through the sliding blocks 245, the two limiting plates 241 are used for extruding the concave inner walls of the adjusting concave blocks 22 on two sides under the elastic action of the stress springs 244, and meanwhile the sliding blocks 245 are used for limiting sliding in the sliding grooves 246, so that the two limiting plates 241 can be limited, the adjusting convex blocks 21 and the adjusting concave blocks 22 are prevented from loosening on the outer walls of the locking screw sleeves 231, and workers can conveniently and pre-position the adjusting.
As shown in fig. 8, fig. 9, fig. 12 and fig. 13, the opposite side wall structures of the adjusting lug 21 and the adjusting concave block 22 are the same, and meanwhile, all the bolts are connected with the electric connection assembly 25, the electric connection assembly 25 comprises an installation shell 251, and the installation shell 251 is in bolt connection with the inside of an installation cavity 213 formed in the side wall of the adjusting lug 21, a plurality of first fixing grooves 252 are uniformly formed in the inside of the installation shell 251, a plurality of second fixing grooves 253 are uniformly formed in the side wall of the installation shell 251, the inside of the plurality of first fixing grooves 252 is in clamping connection with a connecting copper plate 254, the side wall of the plurality of connecting copper plates 254 is fixedly connected with an L-shaped extension rod 255, the end faces of the plurality of L-shaped extension rods 255 are fixedly connected with an electric connection column 256, and the plurality of L-shaped extension rods 255 are respectively in clamping connection with the plurality of second fixing grooves 253, a positioning connection groove 215 is formed in the position of the front wall of the adjusting lug 21 close to the installation cavity 213, a plurality of through holes 216 are formed in the inside of the positioning connection groove 215, the plurality of electric connection columns penetrate through the front wall of the through holes 216, the first fixing grooves 252 penetrate through the front wall of the adjusting lug 21, the plurality of first fixing grooves 252 can be fixedly connected with a plurality of copper bars 255, and can be fixedly connected with a plurality of copper bars 255 in the inner connection with the inner side bars 255, and can be fixedly connected with a plurality of copper bars 255, and can be fixedly connected with a plurality of inner bars, and can be fixedly connected with a plurality of copper bars, and fixedly connected with the inner bars, and can be fixedly connected with a corresponding to the inner bus bar connector bars, and can be fixedly connected with the inner connector with and can.
As shown in fig. 14-16, the front wall of the adjusting concave block 22 is electrically plugged with the overload protection mechanism 3, the overload protection mechanism 3 includes an electrical installation frame 31, a plurality of first plugging installation openings 311 are formed in the position, close to the side wall, of the rear wall of the electrical installation frame 31, and the electrical installation frame 31 is electrically plugged with the electrical connection component 25 of the internal installation of the adjusting concave block 22 through the plurality of first plugging installation openings 311, and the extruded electrical connection structure 32 extends to the inside of the first plugging installation opening 311, a hidden slot 312 is formed in the side wall of the electrical installation frame 31, a plurality of corresponding holes 313 are uniformly formed in the inside of the hidden slot 312, the top of the electrical installation frame 31 is close to the side wall corners and fixedly connected with hollow columns 314, top bolts of the two hollow columns 314 are connected with dust covers 315, and the positions, far away from the hollow columns 314, of the dust covers 31 are connected with the electrical installation frame 31 through bolts, the plurality of first plugging installation openings 311 can be installed and fixed to the internal extruded electrical connection structure 32, and the auxiliary push blocks 343 can be conveniently installed and fixed by the hidden slot 312, and the auxiliary push blocks 343 can be hidden, and the attractive appearance can be improved, and the electrical connection of the auxiliary push blocks can be accurately plugged with the auxiliary push blocks 343.
As shown in fig. 18 and 19, the even swing joint of inside wall of electric installation frame 31 has a plurality of extrusion formula electric connection structure 32, extrusion formula electric connection structure 32 is including connecting the rocker 321, the terminal surface of connecting the rocker 321 extends to the inside of first grafting installing port 311, draw-in groove 322 has been seted up to the top that connects the rocker 321 near the terminal surface position, the inside block of draw-in groove 322 is connected with reset spring 323, connect the rocker 321 and be close to middle part position fixedly connected with axis of rotation 324, and be rotatory with electric installation frame 31 through axis of rotation 324 and be connected, the terminal surface fixedly connected with rocker connection pad 325 that connects the rocker 321 and keep away from reset spring 323, the terminal surface that connects the rocker 321 is electric connection with electric connection subassembly 25 and overload protector 33 respectively, utilize electric connection post 256 after inserting can extrude the rotation with inside connection rocker 321, thereby make the other end and overload protector 33 of connecting the rocker 321 extrude fixedly, improve in use stability, and use reset spring 323 can make the quick overload protector 33 that keeps away from of connecting the rocker 321 when dismantling.
As shown in fig. 15 and 20, the plurality of extrusion type electrical connection structures 32 are electrically connected with the overload protector 33, and the overload protector 33 is in clamping connection with the electrical installation frame 31, the top of the overload protector 33 is close to the side wall position and is in threaded connection with the plurality of gasket bolts 331, the overload protector 33 is far away from the side wall of the connection rocker 321 and is uniformly provided with the plurality of electrical connection ports 332, the middle part of the top of the overload protector 33 is electrically connected with the protection switch 333, the top of the overload protector 33 is close to the corner of the rear wall and is provided with the voice broadcasting port 334, the top of the overload protector 33 is close to the position of the rear wall and is fixedly connected with the alarm lamp 335, the plurality of connection rocker 321 can be fixed on the overload protector 33 by utilizing the plurality of gasket bolts 331, and simultaneously, the switch inside the overload protector 33 can be triggered when internal current is too large, so that the passage of the bus duct body 1 is disconnected to protect the whole circuit, and the alarm lamp 335 flashes and dangers when the circuit is disconnected.
As shown in fig. 16 and 17, the side wall of the electrical installation frame 31 is connected with the clamping type electrical connection belt 34 in a clamping type manner, the clamping type electrical connection belt 34 is electrically connected with the overload protector 33, the clamping type electrical connection belt 34 comprises a connection belt body 341, the end face of the connection belt body 341 is fixedly connected with a second plug mounting opening 342, and is electrically connected with an electrical connection assembly 25 of the adjusting lug 21 through the second plug mounting opening 342, the end face of the connection belt body 341 far away from the second plug mounting opening 342 is fixedly connected with an auxiliary push block 343, the side wall of the auxiliary push block 343 is fixedly connected with a plurality of electrical plug posts 344, and is electrically connected with the overload protector 33 through a plurality of electrical plug posts 344, the bottom of the auxiliary push block 343 is fixedly connected with a set-up plate 345, the side wall of the set-up plate 345 is connected with a pull rod 346, the outer wall of the pull rod 346 is sleeved with a compression spring 347, the end face of the pull rod 346 is connected with a baffle 348, the auxiliary push block 344 is pulled out of the plurality of electrical plug posts 344, the side wall of the auxiliary push block 33 is placed into the inner portion of the electrical installation frame 31, the inner portion of the overload protector 33 is pressed down by the compression spring 347, the inner portion of the overload protector 33 is pressed down, the overload protector 33 is electrically connected with the overload protector 33, and the overload protector is electrically connected with the auxiliary push block and the auxiliary push block 346, and the auxiliary push block is electrically connected with the overload protector 33, and the overload protector 31.
An application method of an adjustable bus duct with overload protection function;
S1, firstly, a steering adjusting mechanism 2 is pre-installed on a section of a bus duct body 1 which is fixed, so that copper bars in the bus duct body 1 are inserted into an electric connection assembly 25, the copper bars and a plurality of corresponding connection copper plates 254 are mutually extruded and fixed, then a protection frame 11 is slid on the bus duct body 1, and the protection frame is clamped and fixed in a protection connection groove 214 formed on the side wall of an adjusting concave block 22 and used for protecting a connection part;
S2, then, the locking bolt 233 and the locking screw sleeve 231 are subjected to threaded rotation and loosening, the extrusion force of the convex part of the adjusting lug 21 at the concave part of the adjusting concave block 22 is eliminated, and at the moment, the two limiting plates 241 extrude the concave inner walls of the adjusting concave block 22 at the two sides under the elastic action of the stress springs 244, so that the adjusting lug 21 and the adjusting concave block 22 are prevented from loosening on the outer wall of the locking screw sleeve 231, and the staff can conveniently pre-position the adjusting lug during adjustment;
S3, then, a worker rotates the adjusting lug 21 on the locking screw sleeve 231 according to the angle required to rotate, and simultaneously, under the action of the limiting plates 241 internally provided with the plurality of anti-slip strips 242, the limiting plates 241 on two sides are extruded on the concave inner wall of the adjusting concave block 22 by utilizing the internal stress springs 244, so that the adjusted adjusting lug 21 can be stabilized, and continuous rotation or reset rotation after adjustment at different angles is prevented;
S4, the locking bolt 233 is rotated and locked through a specific tool, so that the locking bolt 233 is matched with the locking screw sleeve 231 to extrude the adjusting concave block 22, the concave inner wall of the adjusting concave block 22 and the convex side wall of the adjusting convex block 21 are mutually extruded and fixed, and the locking bolt 233 is firmer under the anti-skid effect of the two limiting plates 241, so that the effect of adjusting different angles is achieved;
S5, the same principle as that of S1 is adopted to electrically connect the other section of the bus duct body 1to an electrical connection assembly 25 arranged in the adjusting lug 21, and meanwhile, the bus duct body 1 is integrally installed and fixed;
S6, pulling out the plurality of electric plug-in posts 344 through the auxiliary pushing block 343, putting the overload protector 33 into the electric installation frame 31, enabling the position of the extruded electric connection structure 32 to be lower than that of the connection rocker 321, loosening the auxiliary pushing block 343, enabling the baffle 348 to drive the auxiliary pushing block 343 connected with the end face of the pull rod 346 to move by utilizing the plurality of compression springs 347 in the interior, and enabling the plurality of electric plug-in posts 344 to be electrically plugged and fixed with the electric connection ports 332 on the side wall of the overload protector 33;
S7, then, the electrical installation frame 31 is inserted onto the electrical connection assembly 25 installed inside the adjusting concave block 22 through the first plugging installation opening 311, so that the electrical connection columns 256 and the first plugging installation openings 311 are correspondingly electrically plugged, meanwhile, the end faces of the internal electrical connection columns 256 are extruded against the connection rocker 321, the other end face of the connection rocker 321 is stably extruded at the side wall connection part of the overload protector 33, the connection rocker 321 is fixed on the overload protector 33 by using the gasket bolt 331, and finally, the connection belt body 341 is electrically plugged with the electrical connection assembly 25 installed inside the adjusting lug 21 through the second plugging installation opening 342, so that an entire passage is formed, and the connection passage can be disconnected through the overload protector 33, so that the whole bus duct body 1 is protected.
The foregoing description is only illustrative of the present invention and is not intended to limit the scope of the invention, and all equivalent structures or equivalent processes or direct or indirect application in other related technical fields are included in the scope of the present invention.
Claims (10)
1. The utility model provides an regulation formula bus duct with overload protection, includes bus duct body (1), its characterized in that: the bus duct comprises a bus duct body (1), and is characterized in that a steering adjusting mechanism (2) is electrically connected to the middle position of the bus duct body (1), the steering adjusting mechanism (2) comprises an adjusting lug (21), an adjusting concave block (22) and a locking component (23), the protruding portion of the adjusting lug (21) is inserted into the concave of the adjusting concave block (22), meanwhile, the locking component (23) penetrates through the intersection of the adjusting lug (21) and the adjusting concave block (22), the adjusting lug (21) and the adjusting concave block (22) are hinged through the locking component (23), a limiting anti-slip component (24) is inserted into the side wall of the protruding portion of the adjusting lug (21), the side wall of the limiting anti-slip component (24) is tightly attached to the inner side wall of the concave of the adjusting concave block (22), and the opposite side wall structures of the adjusting lug (21) and the adjusting concave block (22) are identical, and meanwhile, all the electric connecting components (25) are connected through bolts;
The front wall electric grafting of adjusting concave piece (22) has overload protection mechanism (3), overload protection mechanism (3) are including electric installation frame (31), the even swing joint of inside wall of electric installation frame (31) has a plurality of extrusion formula electric connection structure (32), a plurality of extrusion formula electric connection structure (32) electric connection has overload protector (33), just overload protector (33) are the block with electric installation frame (31) and are connected, the lateral wall block of electric installation frame (31) is connected with block formula electric connection area (34), just block formula electric connection area (34) are electric connection with overload protector (33), the terminal surface that electric installation frame (31) were kept away from to block formula electric connection area (34) with adjust inside electric connection subassembly (25) are the electric grafting setting.
2. An adjustable busway with overload protection as claimed in claim 1, wherein: the bus duct is characterized in that the outer wall of the bus duct body (1) is close to the middle part, the protection frames (11) are symmetrically and slidably connected, the opposite end faces of the adjusting protruding blocks (21) and the adjusting concave blocks (22) are close to the outer wall, the protection connecting grooves (214) are formed in the positions, close to the outer wall, of the bus duct body, and the two protection connecting grooves (214) are respectively in plug-in connection with the end faces of the two protection frames (11).
3. An adjustable busway with overload protection as claimed in claim 1, wherein: the locking assembly (23) comprises a locking screw sleeve (231) penetrating through the adjusting protruding block (21) and the adjusting concave block (22), a stabilizing spring (232) is clamped and connected at the position, close to the end face, of the inner wall of the locking screw sleeve (231), the end face of the locking screw sleeve (231) is connected with a locking bolt (233) in a threaded mode, and the stabilizing spring (232) is sleeved with the outer wall of the locking bolt (233).
4. An adjustable busway with overload protection as claimed in claim 1, wherein: limiting anti-slip assembly (24) includes two limiting plates (241), and two limiting plates (241) movable mounting in subsider (211) that regulation lug (21) bulge both sides were seted up, two in the equal fixedly connected with a plurality of antislip strips (242) of face that keep away from mutually of limiting plates (241), two opposite wall of limiting plates (241) is a plurality of evenly distributed's fixed column (243) all fixedly connected with, and two sets of the relative terminal surface of fixed column (243) all corresponds to be inserted inside a plurality of movable holes (212) that regulation lug (21) bulge both sides were seted up, two sets of the outer wall of fixed column (243) has all cup jointed stress spring (244), and simultaneously a plurality of stress spring (244) are installed in the inside of a plurality of movable holes (212), wherein a set of fixed column (243) are close to terminal surface position and are all fixedly connected with slider (245), and another set of fixed column (243) are close to terminal surface position and all have seted up spout (246), wherein a set of fixed column (243) are through slider (246) and another fixed column (243) are the sliding connection (245).
5. An adjustable busway with overload protection as claimed in claim 1, wherein: the electric connection assembly (25) comprises a mounting shell (251), the mounting shell (251) is connected with the inside of a mounting cavity (213) formed in the side wall of the adjusting lug (21) through bolts, a plurality of first fixing grooves (252) are uniformly formed in the mounting shell (251), a plurality of second fixing grooves (253) are uniformly formed in the side wall of the mounting shell (251), a plurality of connecting copper plates (254) are fixedly connected to the inside of the first fixing grooves (252) through clamping, L-shaped extension rods (255) are fixedly connected to the side wall of the connecting copper plates (254), electric connection columns (256) are fixedly connected to the end faces of the L-shaped extension rods (255), the L-shaped extension rods (255) are respectively connected with the second fixing grooves (253) through clamping, positioning connection grooves (215) are formed in positions, close to the mounting cavity (213), of the front wall of the adjusting lug (21), a plurality of through holes (216) are formed in the inside of the positioning connection grooves (215), and the through holes (216) are formed in the positions, close to the front wall of the mounting lug (21).
6. An adjustable busway with overload protection as claimed in claim 1, wherein: the back wall of electric installation frame (31) is close to lateral wall position and has seted up a plurality of first grafting installing ports (311), just electric installation frame (31) are electric grafting setting through a plurality of first grafting installing ports (311) and regulation concave block (22) internally mounted's electric connection subassembly (25), just extrusion formula electric connection structure (32) extend to the inside of first grafting installing port (311), hidden groove (312) have been seted up to the lateral wall of electric installation frame (31), a plurality of corresponding holes (313) have evenly been seted up to the inside of hidden groove (312), the top of electric installation frame (31) is close to equal fixedly connected with hollow post (314) of lateral wall corner department, two the top bolted connection of hollow post (314) has shield (315), just the position that hollow post (314) were kept away from to shield (315) is bolted connection with electric installation frame (31).
7. An adjustable bus duct with overload protection as set forth in claim 6 wherein: the extrusion type electric connection structure (32) comprises a connection rocker (321), the end face of the connection rocker (321) extends to the inside of a first plug-in mounting port (311), a clamping groove (322) is formed in the position, close to the end face, of the top of the connection rocker (321), a reset spring (323) is connected to the inner clamping of the clamping groove (322), a rotating shaft (324) is fixedly connected to the connection rocker (321) close to the middle position, the connection rocker is rotationally connected with an electric installation frame (31) through the rotating shaft (324), a rocker connection gasket (325) is fixedly connected to the end face, far away from the reset spring (323), of the connection rocker (321), and the end face of the connection rocker (321) is electrically connected with an electric connection assembly (25) and an overload protector (33) respectively.
8. An adjustable bus duct with overload protection as set forth in claim 7 wherein: the top of overload protector (33) is close to lateral wall position threaded connection and has a plurality of gasket bolts (331), a plurality of electric connection mouth (332) have evenly been seted up to lateral wall that overload protector (33) kept away from and is connected wane (321), the top middle part position electric connection of overload protector (33) has protection switch (333), the top of overload protector (33) is close to back wall corner and is provided with voice broadcast mouth (334), the top of overload protector (33) is close to back wall position fixedly connected with warning light (335).
9. An adjustable busway with overload protection as claimed in claim 1, wherein: the clamping type electric connection belt (34) comprises a connection belt body (341), wherein the end face of the connection belt body (341) is fixedly connected with a second plug-in mounting port (342), and through the second plug-in mounting port (342) and an electric connection assembly (25) of the internal installation of the adjusting lug (21) are in electric plug-in connection, the connection belt body (341) is far away from the end face of the second plug-in mounting port (342) and is fixedly connected with an auxiliary push block (343), the side wall of the auxiliary push block (343) is fixedly connected with a plurality of electric plug-in columns (344), and the electric plug-in connection setting is carried out through a plurality of electric plug-in columns (344) and an overload protector (33), a triangular plate (345) is fixedly connected with the bottom of the auxiliary push block (343), a side wall bolt of the triangular plate (345) is connected with a pull rod (346), the pull rod (346) extends to the inside of the electric installation frame (31), the outer wall of the pull rod (346) is provided with a compression spring (347), and the end face of the pull rod (346) is connected with a baffle (348) in a sleeved mode.
10. A method of using an adjustable busway with overload protection according to any one of claims 1 to 9, characterised in that it comprises the steps of:
S1, firstly, a steering adjusting mechanism (2) is pre-installed on a section of a bus duct body (1) which is fixed, so that copper bars in the bus duct body (1) are inserted into an electric connection assembly (25) to be mutually extruded and fixed with a plurality of corresponding connection copper plates (254), then a protection frame (11) is slid on the bus duct body (1) to be clamped and fixed in a protection connection groove (214) formed in the side wall of an adjusting concave block (22) for protecting a connection part;
s2, then, screw thread rotation is carried out between the locking bolt (233) and the locking screw sleeve (231) to loosen, the extrusion force of the convex part of the adjusting lug (21) at the concave part of the adjusting concave block (22) is eliminated, at the moment, under the elastic action of a plurality of stress springs (244), the two limiting plates (241) extrude the concave inner walls of the adjusting concave block (22) at the two sides, so that the adjusting lug (21) and the adjusting concave block (22) are prevented from loosening on the outer wall of the locking screw sleeve (231), and the staff can conveniently position in advance during adjustment;
S3, then, a worker rotates the adjusting lug (21) on the locking screw sleeve (231) according to the required rotation angle, and simultaneously, under the action of the limiting plates (241) internally provided with a plurality of anti-slip strips (242), the limiting plates (241) on two sides are extruded on the concave inner wall of the adjusting concave block (22) by using the internal stress springs (244), so that the adjusted adjusting lug (21) can be stabilized, and continuous rotation or reset rotation after adjustment at different angles is prevented;
S4, the locking bolt (233) is rotated and locked through a specific tool, so that the locking bolt is matched with the locking screw sleeve (231) to extrude the adjusting concave block (22), the concave inner wall of the adjusting concave block (22) and the convex side wall of the adjusting convex block (21) are mutually extruded and fixed, and the locking bolt is firmer under the anti-skid effect of the two limiting plates (241), so that the effect of adjusting different angles is achieved;
s5, the same principle as that of the S1 is adopted to electrically connect the other section of the bus duct body (1) to an electric connection assembly (25) arranged in the adjusting lug (21), and meanwhile, the bus duct body (1) is integrally installed and fixed;
S6, pulling out a plurality of electric plug-in posts (344) through an auxiliary booster block (343), putting the overload protector (33) into the electric installation frame (31) so that the position of the electric connection structure (32) is lower than that of the connection rocker (321), loosening the auxiliary booster block (343), and utilizing a plurality of compression springs (347) in the interior to enable a baffle (348) to drive the auxiliary booster block (343) connected with the end face of a pull rod (346) to move, so that the electric plug-in posts (344) and the electric connection ports (332) on the side wall of the overload protector (33) are electrically plugged and fixed;
s7, insert electric installation frame (31) on adjusting concave piece (22) internally mounted 'S electric connection subassembly (25) through first grafting installing port (311) then, make a plurality of electric connection post (256) correspond electric grafting with a plurality of first grafting installing port (311), inside electric connection post (256) terminal surface is extruded connection wane (321) simultaneously, make the stable extrusion of another terminal surface of connection wane (321) in overload protector (33) lateral wall junction, and use gasket bolt (331) to fix connection wane (321) on overload protector (33), finally carry out electric grafting setting with connecting band body (341) through second grafting installing port (342) and adjusting convex piece (21) internally mounted' S electric connection subassembly (25), thereby form whole passageway, and can carry out the disconnection operation to the connection passageway through overload protector (33), thereby protect whole bus duct body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410544737.3A CN118137399A (en) | 2024-05-06 | 2024-05-06 | Adjustable bus duct with overload protection function and application method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410544737.3A CN118137399A (en) | 2024-05-06 | 2024-05-06 | Adjustable bus duct with overload protection function and application method thereof |
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| CN118137399A true CN118137399A (en) | 2024-06-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202410544737.3A Pending CN118137399A (en) | 2024-05-06 | 2024-05-06 | Adjustable bus duct with overload protection function and application method thereof |
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| CN113972615A (en) * | 2021-10-29 | 2022-01-25 | 祝红亮 | Energy-saving bus duct with high-protection-level copper-aluminum composite conductor and use method thereof |
| CN114243607A (en) * | 2022-02-25 | 2022-03-25 | 徐州拓发电力器材有限公司 | Adjustable bus duct |
| CN114725869A (en) * | 2022-05-17 | 2022-07-08 | 深圳市爱得威母线制造有限公司 | Bus duct power distribution system and bus duct production process |
| CN117410917A (en) * | 2023-10-30 | 2024-01-16 | 江苏向荣电气有限公司 | Energy-saving bus duct based on overload protection structure and use method thereof |
| CN117791451A (en) * | 2023-12-12 | 2024-03-29 | 镇江加勒智慧电力科技股份有限公司 | Foldable bus duct |
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2024
- 2024-05-06 CN CN202410544737.3A patent/CN118137399A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113972615A (en) * | 2021-10-29 | 2022-01-25 | 祝红亮 | Energy-saving bus duct with high-protection-level copper-aluminum composite conductor and use method thereof |
| CN114243607A (en) * | 2022-02-25 | 2022-03-25 | 徐州拓发电力器材有限公司 | Adjustable bus duct |
| CN114725869A (en) * | 2022-05-17 | 2022-07-08 | 深圳市爱得威母线制造有限公司 | Bus duct power distribution system and bus duct production process |
| CN117410917A (en) * | 2023-10-30 | 2024-01-16 | 江苏向荣电气有限公司 | Energy-saving bus duct based on overload protection structure and use method thereof |
| CN117791451A (en) * | 2023-12-12 | 2024-03-29 | 镇江加勒智慧电力科技股份有限公司 | Foldable bus duct |
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