Large-current bushing convenient to install

Abstract

The utility model relates to a high-current bushing convenient to install, and relates to the technical field of high-current bushings.The high-current bushing convenient to install comprises a bushing body and a conductor coaxially arranged in the bushing body in a penetrating mode, the two ends of the conductor are each provided with a power connection port, a gap is reserved between the bushing body and the inner circumferential wall of an installation hole, and a step-shaped installation block is coaxially arranged on the bushing body; the installation block is movably attached to the inner side wall of the cabinet body, a plurality of threaded holes are formed in the installation block and correspond to the fastening holes in a one-to-one mode, and a positioning assembly for pre-fixing the sleeve body is arranged on the sleeve body. The casing pipe has the advantages that installation is facilitated for technicians, the risk of damage to the casing pipe body is reduced, and the insulation performance of the casing pipe body is improved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of large-current bushings, in particular to a large-current bushing convenient to install. BACKGROUND

[0002] The large-current bushing is a device installed on a high-voltage electrical equipment, which plays a role of fixing, protecting and insulating the conductor and connects the high-voltage electricity with the high-voltage electrical equipment.

[0003] The large-current bushing commonly used in the high-voltage switch cabinet at present comprises a conductor and a bushing body coaxially wrapped on the conductor, both ends of the conductor are provided with power connection ports, the bushing body is usually made of epoxy resin with high insulation, the bushing body is fixed with a metal flange, a corresponding mounting hole and a plurality of fastening holes for fixing bolts are formed on the side wall of the cabinet body, which are used for fixing the bushing body on the cabinet body, during installation, the technician first passes one end of the bushing body through the mounting hole, so that the metal flange corresponds to the fastening hole, and then fixes the metal flange on the cabinet body by using the bolt to realize the installation of the bushing body, and then the technician connects the cable outside the cabinet body and the busbar inside the cabinet body with the power connection ports at both ends of the conductor respectively.

[0004] According to the related technology in the above, when the technician passes the bushing body through the mounting hole, the edge of the mounting hole is easy to scratch the outer surface of the bushing body, under the high-voltage electric field, the free charge is easy to gather at the scratch, causing high-voltage discharge, further damaging the bushing body and reducing the insulation performance of the bushing body, and when the bushing body is fixed, the technician needs to rotate the bushing body to adjust the position of the metal flange, at this time, the edge of the mounting hole is easy to cause damage to the bushing body again, and the technician needs to hold the bushing body with one hand to keep the metal flange corresponding to the fastening hole, and at the same time, uses the other hand to tighten the bolt, at this time, the technician's two hands are respectively located inside and outside the cabinet body, which is inconvenient to operate, and therefore needs to be improved. CONTENT OF THE UTILITY MODEL

[0005] In order to facilitate the technician to install and reduce the risk of damage to the bushing body and improve the insulation performance of the bushing body, the application provides a large-current bushing convenient to install.

[0006] The large-current bushing convenient to install provided by the application adopts the following technical scheme:

[0007] A large current bushing convenient to install, comprising a bushing body and a conductor coaxially penetrating in the bushing body, both ends of the conductor are provided with an electrical port, the bushing body and the inner wall of the mounting hole leave a gap, the bushing body is coaxially provided with a stepped mounting block, the mounting block is movably attached to the inner side wall of the cabinet, the mounting block is provided with a plurality of threaded holes, and the plurality of threaded holes correspond to the plurality of fastening holes one by one, the bushing body is provided with a positioning assembly for pre-fixing the bushing body;

[0008] The positioning assembly comprises a fixing cylinder coaxially arranged on the outer circumferential wall of the bushing body, a plurality of positioning blocks are slidably arranged on the fixing cylinder, the plurality of positioning blocks are uniformly arranged along the circumference of the fixing cylinder, the positioning blocks always slide along the radial direction of the fixing cylinder, the side wall of the positioning block away from the bushing body is movably abutted against the inner circumferential wall of the mounting hole, and the fixing cylinder is provided with an adjusting member for synchronously adjusting the plurality of positioning blocks.

[0009] By adopting the above technical scheme, when installing, the technician passes one end of the bushing body through the mounting hole, and makes the mounting block abut against the inner side wall of the cabinet, at this time, since the bushing body and the inner circumferential wall of the mounting hole leave a gap, the bushing body is not easy to contact the edge of the mounting hole, the risk of damage to the bushing body is reduced, and the insulation performance of the bushing body is improved.

[0010] Then the technician operates the adjusting member to synchronously slide the plurality of positioning blocks away from the fixing cylinder until the positioning block away from the side wall of the bushing body abuts against the inner circumferential wall of the mounting hole, at this time, the bushing body and the mounting hole are coaxial, and the bushing body can still rotate in the mounting hole, then the technician adjusts the rotating bushing body to make the threaded holes on the mounting block correspond to the fastening holes, at this time, the positioning block and the inner circumferential wall of the mounting hole rub, so that the bushing body is not easy to contact the edge of the mounting hole, the risk of damage to the bushing body is reduced, and the insulation performance of the bushing body is further improved.

[0011] Then the technician continues to operate the adjusting member to make the positioning block abut against the inner circumferential wall of the mounting hole, so that the fixing cylinder and the cabinet are not easy to move relatively, thereby realizing the pre-fixing of the bushing body, then the technician screws the bolt into the threaded hole through the fastening hole to realize the fixing of the mounting block, thereby realizing the fixing of the bushing body, which is convenient for the technician to install the bushing body, then the technician connects the cable outside the cabinet and the busbar in the cabinet with the electrical port at both ends of the conductor respectively to realize the installation.

[0012] Optionally, the adjusting member comprises an adjusting ring coaxially threaded on the fixing cylinder, the outer circumferential wall of the adjusting ring is inclined, and the inclined side of the adjusting ring movably abuts against the side wall of the positioning block close to the fixing cylinder.

[0013] By adopting the technical scheme, when the sleeve body is pre-fixed, the technician rotates the adjusting ring to move the adjusting ring towards the installation block, and makes the inclined side of the adjusting ring abut against the side wall of the fixing cylinder close to the positioning block, so as to drive the positioning block to slide away from the sleeve body until the technician feels resistance when rotating the adjusting ring, at which time the positioning block slides to abut against the inner peripheral wall of the mounting hole.

[0014] After adjusting the installation block, the technician continues to rotate the adjusting ring to make the positioning block continue to slide away from the sleeve body, so that the positioning block abuts against the inner side wall of the mounting hole, and the sleeve body is pre-fixed, which is convenient for the technician to operate.

[0015] Optionally, the sleeve body is provided with a shielding net, the shielding net is made of metal material, the shielding net is in the shape of a cylinder coaxial with the conductor, and both ends of the shielding net are smoothly curled outward.

[0016] By adopting the technical scheme, the shielding net is arranged to reduce the influence of the external magnetic field on the current transmission in the sleeve body, improve the stability of current transmission, and evenly shield the electric field in the sleeve body. Since both ends of the shielding net are smoothly curled outward, the sharp end part of the shielding net is reduced, the risk of local discharge in the sleeve body due to the sharp end is reduced, the risk of damage to the sleeve body is reduced, and the service life of the sleeve body is improved.

[0017] Optionally, the installation block is provided with a plurality of connecting columns, the connecting columns are uniformly arranged along the circumference direction of the sleeve body, the connecting columns are made of metal material, one end of the connecting column abuts against the shielding net, the other end of the connecting column protrudes from the outer peripheral wall of the installation block, and the connecting column is provided with a connecting assembly for fixing the grounding wire in the cabinet to the connecting column.

[0018] By adopting the technical scheme, after the adjusting ring is rotated for the first time, the technician rotates the sleeve body to make one connecting column face the technician, and fixes the grounding wire in the cabinet to the connecting column through the connecting assembly, and then the technician continues to rotate the sleeve body and performs grounding treatment on the remaining connecting columns one by one. Since the sleeve body can rotate in the mounting hole at this time, it is convenient for the technician to operate, and the shielding net is uniformly grounded at multiple points, which can effectively disperse and eliminate electromagnetic interference and improve the stability of the sleeve body in operation.

[0019] Optionally, the connecting assembly comprises a connecting rod coaxially and slidingly arranged on the connecting column, the connecting column is provided with a plug-in slot for sliding of the connecting rod, the connecting rod is movably attached to the inner side wall of the plug-in slot, one end of the connecting rod protrudes out of the plug-in slot, the protruding end of the connecting rod is provided with an abutting block, the cross-sectional size of the abutting block is larger than that of the connecting rod, one end of the grounding wire is movably sleeved on the connecting rod, and the grounding wire is movably arranged between the abutting block and the connecting column, the connecting rod is slidingly provided with an abutting rod, one end of the abutting rod protrudes out of the connecting rod, the connecting rod is also elastically slidingly provided with a clamping block, the clamping block protrudes out of the outer peripheral wall of the connecting rod, the sliding direction of the abutting rod and the clamping block is perpendicular, the side wall of the abutting rod away from the protruding end is inclined, the inclined side of the abutting rod abuts against the clamping block, one end of the clamping block protrudes out of the outer peripheral wall of the connecting rod, the inner peripheral wall of the plug-in slot is provided with a plurality of clamping slots, the clamping block is movably arranged in the clamping slot and movably abuts against the inner side wall of the clamping slot, the clamping slot is provided with a plurality of clamping slots, the plurality of clamping slots are uniformly arranged along the circumferential direction of the connecting column, and the clamping block is selectively corresponding to the plurality of clamping slots.

[0020] When the connecting column is grounded by adopting the above technical scheme, the technician presses the abutting rod, the inclined side of the abutting rod abuts against the clamping block, and drives the clamping block to slide away from the clamping slot, until the clamping block is separated from the clamping slot, then the technician pulls out the connecting rod, and sleeves the connecting end of the grounding wire on the connecting rod, so as to facilitate the technician to position the grounding wire.

[0021] Then the technician inserts the connecting rod into the plug-in slot, then the technician releases the abutting rod, and makes the connecting rod continue to slide towards the plug-in slot, until the clamping block moves to correspond to one clamping slot, at this time, the clamping block slides towards the inner side wall of the clamping slot under the elastic force, so that the clamping block is inserted into the clamping slot, and the clamping block abuts against the inner side wall of the clamping slot, so that the connecting rod and the connecting column are not easy to move relative to each other, and at the same time, the side wall of the abutting block close to the connecting column abuts against the grounding wire, so as to fix the grounding wire, and when fixing the grounding wire, the technician does not need to hold the grounding wire with one hand, so that the connecting end of the grounding wire corresponds to the grounding position, and the other hand operates the screwdriver to fix the grounding wire, so as to facilitate the technician to operate.

[0022] Optionally, the mounting block is provided with a containing groove on the side wall close to the fixing cylinder, the containing groove is provided with a sealing ring, and the sealing ring movably abuts against the inner side wall of the cabinet body.

[0023] By adopting the technical scheme, after the sleeve body is fixed, the mounting block abuts against the inner side wall of the cabinet body, and the sealing ring abuts against the inner side wall of the cabinet body, the sealing of the cabinet body is realized, dust, moisture and other impurities outside are not easy to enter the cabinet body, the risk of corrosion of electrical elements in the cabinet body is reduced, and the reliability of the equipment is improved.

[0024] Optionally, a plurality of grooves are arranged on the outer peripheral wall of the adjusting ring, and the plurality of grooves are uniformly arranged along the circumferential direction of the adjusting ring.

[0025] By adopting the technical scheme, when the technician rotates the adjusting ring, the grooves increase the friction between the technician's fingers and the adjusting ring, facilitating the technician's operation.

[0026] In summary, the present application has at least one of the following beneficial technical effects:

[0027] 1. By arranging the sleeve body, the mounting block, the fixing cylinder, the positioning block and the adjusting ring, during installation, the technician passes one end of the sleeve body through the mounting hole, and makes the mounting block abut with the inner side wall of the cabinet body, then the technician rotates the adjusting ring to make the adjusting ring move towards the mounting block, the inclined side of the adjusting ring abuts against the positioning block, and the positioning block slides away from the sleeve body, so that the positioning block abuts with the inner peripheral wall of the mounting hole, at this time, the sleeve body is coaxial with the positioning hole, and the sleeve body can still rotate in the mounting hole, when the technician adjusts the rotating sleeve body, the positioning block rubs with the inner peripheral wall of the mounting hole, so that the sleeve body is not easy to contact with the edge of the mounting hole, the risk of damage to the sleeve body is reduced, and the insulation performance of the sleeve body is improved;

[0028] 2. By arranging the shielding net, the connecting column and the connecting assembly, by arranging the shielding net, the influence of the external magnetic field on the current transmission in the sleeve body is reduced, the stability of the current transmission is improved, and the shielding net can uniformly shield the electric field in the sleeve body, and because the two ends of the shielding net are smoothly curled outward, the sharp end part of the shielding net is reduced, the risk of local discharge in the sleeve body due to the sharp end is reduced, the risk of damage to the sleeve body is reduced, and the service life of the sleeve body is improved, and by arranging the connecting assembly, the multiple grounding wires are sequentially fixed on the multiple connecting columns, the multi-point grounding of the shielding net is realized, the electromagnetic interference can be effectively dispersed and eliminated, and the stability of the operation of the sleeve body is improved;

[0029] 3. Through the setting of the connecting rod, the abutting block, the abutting rod and the clamping block, after the sleeve body is pre-fixed, the technician separates the clamping block from the clamping groove by pressing the abutting rod, then the technician extracts the connecting rod to separate the connecting rod from the plug-in groove, then the technician sets the connecting end of the grounding wire on the connecting rod, then inserts the connecting rod into the plug-in groove until the clamping block corresponds to a clamping groove, at this time the clamping block slides to the direction of the inner side wall of the clamping groove under the elastic force, so that the clamping block is inserted into the clamping groove and abuts against the inner side wall of the clamping groove, so that the connecting rod and the connecting column are not easy to move relatively, realizing the fixation of the grounding wire, facilitating the operation of the technician. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 is a whole structure schematic diagram of the embodiment of the application;

[0031] Figure 2 is a connection structure schematic diagram of the sleeve body and the side wall of the cabinet;

[0032] Figure 3 is a connection structure schematic diagram of the connecting column, the connecting rod and the abutting rod.

[0033] Fig. 1 is a sleeve body; Fig. 11 is a mounting block; Fig. 12 is a metal insert; Fig. 13 is a threaded hole; Fig. 14 is a containing groove; Fig. 15 is a sealing ring; Fig. 16 is a connecting column; Fig. 2 is a conductor; Fig. 21 is an electricity port; Fig. 3 is a positioning assembly; Fig. 31 is a fixed cylinder; Fig. 32 is a fixed plate; Fig. 33 is a positioning block; Fig. 34 is an adjusting piece; Fig. 341 is an adjusting ring; Fig. 342 is a groove; Fig. 4 is a shielding net; Fig. 5 is a connecting assembly; Fig. 51 is a connecting rod; Fig. 52 is a plug-in groove; Fig. 53 is an abutting block; Fig. 54 is an abutting rod; Fig. 55 is a clamping block; Fig. 56 is a clamping groove; Fig. 6 is a cabinet; Fig. 61 is a mounting hole; Fig. 62 is a fastening hole. DETAILED DESCRIPTION

[0034] The following will be described in detail in combination with the accompanying Figures 1-3 The application will be further described in detail.

[0035] The embodiment of the application discloses a large-current sleeve convenient to install. Referring to Figure 1 and Figure 2A large current bushing convenient to install includes a bushing body 1 horizontally mounted on the side wall of the cabinet 6 and a conductor 2 coaxially penetrating and fixed in the bushing body 1. Both ends of the conductor 2 are provided with an electrical port 21. Both ends of the bushing body 1 are in the shape of a circular truncated cone. There is a gap between the bushing body 1 and the inner circumferential wall of the mounting hole 61. The bushing body 1 is coaxially fixed with a mounting block 11 in the shape of a step. The mounting block 11 is movably attached to the inner side wall of the cabinet 6. The side wall of the mounting block 11 close to the fixed cylinder 31 is provided with a receiving groove 14. The receiving groove 14 movably sets a sealing ring 15. The sealing ring 15 is movably abutted to the inner side wall of the cabinet 6. The bushing body 1 and the mounting block 11 are made of epoxy resin. The conductor 2 is made of copper. A plurality of metal inserts 12 are embedded in the mounting block 11. Threaded holes 13 are provided in the metal inserts 12. The plurality of threaded holes 13 correspond to the plurality of fastening holes 62. The stability and firmness during lifting and fixing are improved. In the present application, the threaded holes 13 are provided as six. In other embodiments, the connecting columns 16 can also be three, four, seven or more. The arrangement is consistent with the present application.

[0036] In order to pre-fix the bushing body 1, facilitate the installation of the technician, the bushing body 1 is provided with a positioning assembly 3, referring to Figure 1 and Figure 2 The positioning assembly 3 includes a fixed cylinder 31 coaxially fixed on the outer circumferential wall of the bushing body 1. The fixed cylinder 31 is located on one side of the positioning block 33. The fixed cylinder 31 is fixed with a fixed plate 32 close to one end of the positioning block 33. The fixed plate 32 is embedded in the mounting block 11. The side wall close to the fixed cylinder 31 of the fixed plate 32 is consistent with the side wall of the mounting block 11. A plurality of positioning blocks 33 are slidably connected to the fixed plate 32. The plurality of positioning blocks 33 are uniformly arranged along the circumference direction of the fixed cylinder 31. The positioning block 33 always slides along the radial direction of the fixed cylinder 31. The side wall away from the bushing body 1 of the positioning block 33 is movably abutted to the inner circumferential wall of the mounting hole 61. In the present application, the positioning block 33 is provided as four. In other embodiments, the positioning block 33 can also be three, five, six or more. The arrangement is consistent with the present application.

[0037] In order to facilitate the synchronous adjustment of the four positioning blocks 33, the fixed cylinder 31 is provided with an adjusting piece 34, referring to Figure 1 and Figure 2The adjusting part 34 comprises an adjusting ring 341 coaxially screwed on the fixed cylinder 31, the outer peripheral wall of the adjusting ring 341 is inclined, the inclined side of the adjusting ring 341 is movably attached to the side wall of the fixed cylinder 31 close to the locating block 33, a plurality of grooves 342 are arranged on the outer peripheral wall of the adjusting ring 341, and the plurality of grooves 342 are uniformly arranged along the circumferential direction of the adjusting ring 341. In the present application, the fixed cylinder 31, the fixed plate 32, the locating block 33 and the adjusting ring 341 are all made of polytetrafluoroethylene material, and in other embodiments, they can also be made of nylon, silicon carbide ceramic and polyimide material, as long as they have the properties of wear resistance, insulation and high temperature resistance, which can increase the service life of the sleeve body and at the same time does not affect the insulation performance of the sleeve body.

[0038] When installed, the technician passes one end of the sleeve body 1 through the mounting hole 61, and makes the mounting block 11 attached to the inner side wall of the cabinet 6, and the sealing ring 15 tightly abuts against the inner side wall of the cabinet 6, thereby sealing the cabinet 6, so that the dust, moisture and other impurities outside are not easy to enter the cabinet 6, reducing the risk of corrosion of electrical elements in the cabinet 6, and improving the reliability of the equipment. At the same time, since there is a gap between the sleeve body 1 and the inner peripheral wall of the mounting hole 61, the sleeve body 1 is not easy to contact the edge of the mounting hole 61, reducing the risk of damage to the sleeve body 1, and improving the insulation performance of the sleeve body 1.

[0039] The technician rotates the adjusting ring 341 to make the adjusting ring 341 move towards the mounting block 11, and makes the inclined side of the adjusting ring 341 abut against the side wall of the fixed cylinder 31 close to the fixed cylinder 31, thereby driving the locating block 33 to slide away from the sleeve body 1, until the technician rotates the adjusting ring 341 and feels resistance, at which time the locating block 33 slides to abut against the inner peripheral wall of the mounting hole 61, and the grooves 342 increase the friction between the technician's fingers and the adjusting ring 341, facilitating the technician's operation.

[0040] Then the technician adjusts the rotation of the sleeve body 1, so that the threaded hole 13 on the mounting block 11 corresponds to the fastening hole 62, at which time the locating block 33 rubs against the inner peripheral wall of the mounting hole 61, so that the sleeve body 1 is not easy to contact the edge of the mounting hole 61, reducing the risk of damage to the sleeve body 1, and further improving the insulation performance of the sleeve body 1.

[0041] Then the technician continues to operate the adjusting part 34, makes the positioning block 33 abut against the inner circumferential wall of the mounting hole 61, makes the fixing cylinder 31 not easy to move relative to the cabinet body 6, thereby realizing the pre-fixing of the bushing body 1, then the technician screws the bolt into the threaded hole 13 through the fastening hole 62, realizes the fixing of the mounting block 11, thereby realizing the fixing of the bushing body 1, facilitating the technician to install the bushing body 1, then the technician connects the cable outside the cabinet body 6 and the busbar inside the cabinet body 6 with the power connection port 21 at both ends of the conductor 2 respectively, and the installation can be realized.

[0042] Further, in order to reduce the influence of the external magnetic field on the current transmission inside the bushing body 1, referring to Figure 2 and Figure 3 , the shielding net 4 is arranged in the bushing body 1, the shielding net 4 is arranged in a cylindrical shape coaxially with the conductor 2, a suitable distance is left between the shielding net 4 and the conductor 2, both ends of the shielding net 4 are smoothly curled outward, a plurality of connecting columns 16 are fixed on the mounting block 11, the plurality of connecting columns 16 are uniformly arranged along the circumferential direction of the bushing body 1, one end of the connecting column 16 is in close contact with the shielding net 4, and the other end of the connecting column 16 protrudes from the outer circumferential wall of the mounting block 11. In this application, the connecting column 16 is provided with two, in other embodiments, the connecting column 16 can be three, five, six or more, and the arrangement mode is consistent with this application. The grounding wire in the cabinet body 6 is detachably fixed to the protruding end of the connecting column 16, the shielding net 4 and the connecting column 16 are both metal materials, and in this application, the shielding net 4 and the connecting column 16 are made of copper.

[0043] By arranging the shielding net 4, the influence of the external magnetic field on the current transmission inside the bushing body 1 is reduced, and the stability of the current transmission is improved. At the same time, the shielding net 4 can uniformly shield the electric field inside the bushing body 1, and because both ends of the shielding net 4 are smoothly curled outward, the sharp end part of the shielding net 4 is reduced, the risk of local discharge inside the bushing body 1 due to the sharp end is reduced, thereby reducing the risk of damage to the bushing body 1, and prolonging the service life of the bushing body 1.

[0044] After rotating the adjusting ring 341 for the first time, the technician rotates the adjusting sleeve to make one connecting column 16 face the technician, and then fixes the grounding wire in the cabinet body 6 to the connecting column 16, and then the technician continues to rotate the adjusting sleeve and processes the remaining connecting columns 16 one by one. Because the bushing body 1 is in a pre-estimated state at this time, it is convenient for the technician to operate, and the shielding net 4 is uniformly grounded at multiple points, which can effectively disperse and eliminate electromagnetic interference, and improve the stability of the operation of the bushing body 1.

[0045] Further, in order to facilitate the fixing of the grounding wire in the cabinet body 6 to the connecting column 16, a connecting assembly 5 is arranged on the connecting column 16, referring to Figure 3The connecting assembly 5 comprises a connecting rod 51 coaxially and slidably connected to the connecting column 16, the connecting column 16 is provided with a plug-in groove 52 for sliding of the connecting rod 51, the connecting rod 51 is movably attached to the inner side wall of the plug-in groove 52, one end of the connecting rod 51 protrudes from the plug-in groove 52, the protruding end of the connecting rod 51 is fixedly provided with an abutting block 53, the cross-sectional size of the abutting block 53 is larger than that of the connecting rod 51, one end of the grounding wire is movably sleeved on the connecting rod 51, and the grounding wire is movably located between the abutting block 53 and the connecting column 16, the side wall of the abutting block 53 close to the connecting column 16 is movably abutted with the grounding wire, the connecting rod 51 is slidably connected with an abutting rod 54, one end of the abutting rod 54 protrudes from the connecting rod 51, the connecting rod 51 is also slidably connected with a clamping block 55, the clamping block 55 protrudes from the outer peripheral wall of the connecting rod 51, the sliding direction of the clamping block 55 is consistent with the radial direction of the connecting rod 51, the sliding directions of the abutting rod 54 and the clamping block 55 are always perpendicular, the side wall of the abutting rod 54 away from the protruding end is inclined, the inclined side of the abutting rod 54 is abutted with the clamping block 55, one end of the clamping block 55 protrudes from the outer peripheral wall of the connecting rod 51, a plurality of clamping grooves 56 are formed in the inner peripheral wall of the plug-in groove 52, the clamping block 55 is movably located in the clamping groove 56 and is movably abutted with the inner side wall of the clamping groove 56, the clamping groove 56 is provided with a plurality of clamping grooves 56, the plurality of clamping grooves 56 are uniformly arranged along the circumferential direction of the connecting column 16, the clamping block 55 is selectively corresponding to the plurality of clamping grooves 56, in the present application, the clamping groove 56 is provided with six, in other embodiments, the positioning block 33 can also be three, four, seven or more, and the arrangement mode is consistent with the present application.

[0046] When the connecting column 16 is grounded, the technician presses the abutting rod 54, so that the inclined side of the abutting rod 54 abuts the clamping block 55, and drives the clamping block 55 to slide away from the clamping groove 56, until the clamping block 55 is separated from the clamping groove 56, then the technician pulls out the connecting rod 51, and sleeves the connecting end of the grounding wire on the connecting rod 51, so as to facilitate the technician to position the grounding wire.

[0047] Then the technician inserts the connecting rod 51 into the insertion slot 52, then the technician loosens the abutting block 53, and makes the connecting rod 51 continue to slide towards the direction close to the insertion slot 52, until the clamping block 55 moves to correspond to one clamping slot 56, at this time the clamping block 55 slides towards the inner side wall of the clamping slot 56 under the elastic force, so that the clamping block 55 is inserted into the clamping slot 56, and the clamping block 55 abuts against the inner side wall of the clamping slot 56, so that the connecting rod 51 and the connecting column 16 are not easy to move relatively, at the same time, the abutting block 53 abuts against the grounding wire close to the side wall of the connecting column 16, so that the grounding wire is fixed, and when the grounding wire is fixed, the technician does not need to hold the grounding wire with one hand, so that the connecting end of the grounding wire corresponds to the grounding position, and the other hand operates the screwdriver to fix the grounding wire, which is convenient for the technician to operate.

[0048] The implementation principle of the large-current sleeve convenient to install in the embodiment of the application is as follows: when installing, the technician holds the sleeve body 1 with one hand, and passes one end of the sleeve body 1 through the installation hole 61 in the cabinet body 6, so that the mounting block 11 is attached to the inner side wall of the cabinet body 6, and the technician operates the adjusting ring 341 with the other hand to rotate, so that the adjusting ring 341 drives the positioning block 33 to slide, so that the positioning block 33 is attached to the inner circumferential wall of the installation hole 61, at this time, the sleeve body 1 and the installation hole 61 are coaxial, and the sleeve body 1 can still rotate in the installation hole 61.

[0049] Then the technician presses the abutting rod 54, so that the abutting rod 54 abuts against the clamping block 55, and the clamping block 55 slides away from the clamping slot 56, so that the clamping block 55 and the clamping slot 56 are separated, then the technician holds the abutting block 53 and pulls out the abutting block 53 from the connecting rod 51, so that the connecting rod 51 and the insertion slot 52 are separated, then the technician sets the connecting end of the grounding wire on the connecting rod 51, and inserts the connecting rod 51 into the insertion slot 52, then the technician loosens the abutting block 53, and makes the connecting rod 51 continue to slide towards the direction close to the insertion slot 52, until the clamping block 55 corresponds to one clamping slot 56, under the elastic force, the clamping block 55 is inserted into the clamping slot 56, at this time, the clamping block 55 abuts against the inner side wall of the clamping slot 56, so that the connecting rod 51 and the connecting column 16 are not easy to move relatively, so that the connecting rod 51 is fixed, at the same time, the abutting block 53 abuts against the connecting end of the grounding wire, so that the grounding wire is fixed, then the technician rotates the sleeve body 1, and performs grounding treatment on the other connecting column 16.

[0050] Then the technician screws the bolt through the fastening hole 62 into the threaded hole 13, so that the sleeve body 1 is fixed, then the technician connects the cable outside the cabinet body 6 and the busbar in the cabinet body 6 with the power connection port 21 at both ends of the conductor 2, so that the installation is realized.

[0051] The above are all preferred embodiments of the present application, and do not limit the protection scope of the present application, so that: all equivalent changes made according to the structure, shape, principle of the present application should be covered in the protection scope of the present application.

Claims

1. A large current bushing for easy installation, comprising a bushing body (1) and a conductor (2) coaxially penetrating in the bushing body (1), both ends of the conductor (2) are provided with an electrical connection port (21), characterized in that: The sleeve body (1) and the inner wall of the mounting hole (61) are left with a gap, a mounting block (11) in a stepped shape is coaxially arranged on the sleeve body (1), the mounting block (11) is movably attached to the inner wall of the cabinet body (6), a plurality of threaded holes (13) are formed in the mounting block (11), and the plurality of threaded holes (13) correspond to the plurality of fastening holes (62) one by one, and a positioning assembly (3) for pre-fixing the sleeve body (1) is arranged on the sleeve body (1). The positioning assembly (3) comprises a fixing cylinder (31) coaxially arranged on the outer wall of the sleeve body (1), a plurality of positioning blocks (33) are slidably arranged on the fixing cylinder (31), the plurality of positioning blocks (33) are uniformly arranged along the circumference direction of the fixing cylinder (31), the positioning blocks (33) always slide along the radial direction of the fixing cylinder (31), the side wall of the positioning block (33) away from the sleeve body (1) is movably abutted against the inner wall of the mounting hole (61), and the fixing cylinder (31) is provided with an adjusting piece (34) for synchronously adjusting the plurality of positioning blocks (33).

2. A large current bushing for ease of installation according to claim 1, characterized in that: The adjusting piece (34) comprises an adjusting ring (341) coaxially and screwedly assembled on the fixing cylinder (31), the outer wall of the adjusting ring (341) is inclined, and the inclined side of the adjusting ring (341) is movably attached to the side wall of the positioning block (33) close to the fixing cylinder (31).

3. A large current bushing for ease of installation according to claim 2, characterized in that: The sleeve body (1) is provided with a shielding net (4), the shielding net (4) is made of metal, the shielding net (4) is in a cylindrical shape coaxially arranged on the conductor (2), and both ends of the shielding net (4) are smoothly curled outward.

4. A large current bushing for ease of installation according to claim 3, characterized in that: A plurality of connecting columns (16) are arranged on the mounting block (11), the plurality of connecting columns (16) are uniformly arranged along the circumference direction of the sleeve body (1), the connecting columns (16) are made of metal, one end of the connecting column (16) is attached to the shielding net (4), the other end of the connecting column (16) protrudes from the outer wall of the mounting block (11), and a connecting assembly (5) for fixing the grounding wire in the cabinet body (6) to the connecting column (16) is arranged on the connecting column (16).

5. A large current bushing for ease of installation according to claim 4, characterized in that: The connecting assembly (5) comprises a connecting rod (51) coaxially and slidingly arranged on the connecting column (16), the connecting column (16) is provided with a plug-in slot (52) for sliding of the connecting rod (51), the connecting rod (51) is movably attached to the inner side wall of the plug-in slot (52), one end of the connecting rod (51) is movably arranged outside the plug-in slot (52), the protruding end of the connecting rod (51) is provided with a abutting block (53), the cross-sectional size of the abutting block (53) is larger than that of the connecting rod (51), one end of the grounding wire is movably arranged on the connecting rod (51), and the grounding wire is movably arranged between the abutting block (53) and the connecting column (16), the connecting rod (51) is slidingly provided with an abutting rod (54), one end of the abutting rod (54) is movably arranged outside the connecting rod (51), the connecting rod (51) is also elastically slidingly provided with a clamping block (55), the clamping block (55) is movably arranged outside the outer peripheral wall of the connecting rod (51), the sliding direction of the abutting rod (54) and the clamping block (55) is perpendicular, the side wall of the abutting rod (54) away from the protruding end is inclined, the inclined side of the abutting rod (54) abuts against the clamping block (55), one end of the clamping block (55) is movably arranged outside the outer peripheral wall of the connecting rod (51), a plurality of clamping grooves (56) are formed in the inner peripheral wall of the plug-in slot (52), the clamping block (55) is movably arranged in the clamping groove (56) and movably abuts against the inner side wall of the clamping groove (56), the clamping groove (56) is provided with a plurality of clamping grooves (56), the plurality of clamping grooves (56) are uniformly arranged along the circumferential direction of the connecting column (16), and the clamping block (55) is selectively corresponding to the plurality of clamping grooves (56).

6. A large current bushing for ease of installation according to claim 5, characterized in that: The mounting block (11) is provided with a containing groove (14) on the side wall close to the fixing cylinder (31), the containing groove (14) is provided with a sealing ring (15), and the sealing ring (15) movably abuts against the inner side wall of the cabinet body (6).

7. A large current bushing for ease of installation according to claim 6, characterized in that: A plurality of grooves (342) are formed in the outer peripheral wall of the adjusting ring (341), and the plurality of grooves (342) are uniformly arranged along the circumferential direction of the adjusting ring (341).

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