Emergency power supply switching trolley for low-voltage distribution network

Abstract

The invention discloses an emergency power supply switching trolley for a low-voltage distribution network, and belongs to the technical field of emergency power supply equipment. The trolley comprises a trolley body, an input assembly and an output assembly. The outer wall of the trolley body is provided with a switching input quick connector and a switching output quick connector. The input assembly comprises an input cable, an input wire lug and a cable input connector, the input wire lug and the cable input connector are fixedly connected with the two ends of the input cable respectively, and the cable input connector is used for being connected with the switching input quick interface in a pluggable mode; the output assembly comprises an output cable, an output wire lug, a cable output connector and a clamping piece, the output wire lug and the cable output connector are fixedly connected with the two ends of the output cable respectively, the cable output connector is used for being connected with the switching output quick interface in a pluggable mode, the output wire lug is detachably connected with the clamping piece, and the clamping piece is used for clamping and maintaining the cable. When the emergency power supply switching trolley is applied, the input end and the output end can meet the use requirements of different use scenes.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of emergency power supply equipment, and particularly relates to an emergency power supply switching trolley for low-voltage distribution network. BACKGROUND

[0002] As a power supply system directly facing users, the safe and stable operation of the low-voltage distribution network is crucial to the high-quality development of the society and economy. However, the low-voltage distribution network directly faces users and is mainly composed of numerous small and widely distributed branches. The environment is complex and variable. Once a line outage fault occurs, the traditional power generation car for emergency power supply exposes the following problems: first, road restriction: in many villages and complex urban and rural street environments, the power generation car is often difficult to enter the fault area smoothly due to its large size and large turning radius, and cannot quickly and effectively connect with the target line; second, connection restriction: the on-site fault line has various specifications, and the on-site connection is difficult, and the unstable connection has large resistance, safety hazards and other pain points; third, event response lag: during the repair connection process, the traditional power generation car is far away from the target connection point. When an emergency occurs, there is a time difference in information between the on-site and the power supply car, and it is difficult to control the power supply in the first time.

[0003] Therefore, the emergency power supply switching trolley emerges as the times require, and the emergency power supply switching trolley is used to realize the power supply switching between the power supply car and the power consumption side. However, the current emergency power supply switching trolley has the problem of single switching use scene. In the input end and the output end of the emergency power supply switching trolley, in the input end, the output end of some power supply cars is a quick connector output, and the output end of other power supply cars is a copper bar output. However, the current emergency power supply switching trolley usually only has one kind of quick connector or one kind of copper bar for the output of the power supply car to access, and cannot adapt to the output of different power supply cars. In the output end, the output line of the emergency power supply switching trolley is often connected with an overhead line or a low-voltage distribution network switch cabinet. However, the output end of the current emergency power supply switching trolley usually has only one connection mode. Therefore, the current emergency power supply switching trolley cannot meet the use demand of different use scenes. SUMMARY

[0004] The present application provides an emergency power supply switching trolley for low-voltage distribution network, which aims to solve the problem of single switching use scene of the current emergency power supply switching trolley.

[0005] The present application provides an emergency power supply switching trolley for low-voltage distribution network, which includes:

[0006] The trolley body is provided with a switching input quick connector and a switching output quick connector on the outer wall of the trolley body;

[0007] An input assembly includes an input cable, an input cable lug and a cable input connector, the input cable lug and the cable input connector are respectively fixedly connected with two ends of the input cable, the cable input connector is used for pluggable connection with the adapter input quick connector;

[0008] An output assembly includes an output cable, an output cable lug, a cable output connector and a clamping piece, the output cable lug and the cable output connector are respectively fixedly connected with two ends of the output cable, the cable output connector is used for pluggable connection with the adapter output quick connector, the output cable lug is detachably connected with the clamping piece, and the clamping piece is used for clamping a maintenance cable.

[0009] In one of the embodiments, the clamping piece includes a mounting table, a hooking recess, a mounting piece, an adjusting recess and a threaded rod;

[0010] The hooking recess is fixedly installed on the mounting table, and a mounting hole is formed in an outer wall of the hooking recess;

[0011] The mounting piece is detachably installed in the mounting hole, and the mounting piece is used for penetrating through the output cable lug;

[0012] The adjusting recess is rotatably installed on an end of the threaded rod, and a hooking clamping opening for clamping a cable is formed between the adjusting recess and the hooking recess;

[0013] The threaded rod is screwed on the mounting table, and screwing movement of the threaded rod is used to drive the adjusting recess to move close to or away from the hooking recess to adjust the size of the hooking clamping opening.

[0014] In one of the embodiments, the clamping piece further includes at least two anti-tilting columns;

[0015] At least two anti-tilting openings are further provided on the mounting table, and the two anti-tilting openings are located on opposite sides of the threaded rod;

[0016] One end of each of the two anti-tilting columns penetrates through one of the two anti-tilting openings and is fixedly connected with the adjusting recess, and the other end of each of the two anti-tilting columns is fixedly connected with the telescopic end of the threaded rod.

[0017] In one of the embodiments, the trolley body includes an insulating shell and an adapter assembly;

[0018] The adapter assembly includes the adapter input quick connector, the adapter output quick connector, a connecting piece, an on-off control piece and an insulating support piece;

[0019] The adapter input quick connector, the adapter output quick connector and the on-off control piece are all insulatively installed on the insulating shell;

[0020] The connecting piece is electrically connected with the adapter input quick interface, the adapter output quick interface and the on-off control piece;

[0021] The insulating support is installed on the inner bottom surface of the insulating shell, and is connected with the connecting piece to form an air insulation interval between the connecting piece and the insulating shell.

[0022] In one of the embodiments, the insulating support comprises a plurality of insulating feet.

[0023] The insulating foot comprises an insulating spring, an insulating top block and an insulating bottom block, both ends of the insulating spring are connected with the insulating top block and the insulating bottom block respectively, the insulating top block is connected with the connecting piece, and the insulating bottom block is installed on the inner bottom surface of the insulating shell.

[0024] In one of the embodiments, the emergency power supply adapter trolley further comprises a winding mechanism.

[0025] The winding mechanism comprises a winding driving piece, a winding assembly and a reciprocating moving assembly.

[0026] The winding assembly comprises a winding seat, a winding roller and a driving gear, the winding seat is fixed on the trolley body, the winding roller is rotatably installed on the winding seat, and the driving gear is coaxially connected with the winding roller.

[0027] The reciprocating moving assembly comprises a reciprocating seat, a reciprocating screw, a guide rod, a reciprocating block and a driven gear, the reciprocating seat is fixed on the trolley body, the reciprocating screw is rotatably installed on the reciprocating seat, the guide rod is installed on the reciprocating seat and arranged along the axial direction of the reciprocating screw, the reciprocating block is slidably installed on the guide rod, the reciprocating block is threadedly connected with the reciprocating screw, the reciprocating block is used for passing the input cable or the output cable, and the driven gear is coaxially connected with the reciprocating screw and meshingly connected with the driving gear.

[0028] The winding driving piece is used for driving the winding roller to rotate to wind the cable and driving the reciprocating block to reciprocate on the reciprocating screw to change the winding angle of the cable on the winding roller.

[0029] In one of the embodiments, the reciprocating block comprises a moving block body, a limiting frame, a first roller, a second roller and at least two limiting pieces.

[0030] The moving block body is slidably installed on the guide rod, and the moving block is threadedly connected with the reciprocating screw.

[0031] The limiting frame is connected and fixed with the moving block body, and vertical through grooves are formed in opposite two side walls of the limiting frame;

[0032] Two ends of the first roller are connected with the limiting frame, two ends of the second roller are slidingly installed in the two vertical through grooves, and a roller clamping opening for clamping a cable is formed between the first roller and the second roller.

[0033] The two limiting members are installed on the limiting frame, and the two limiting members are respectively connected and fixed with two ends of the second roller, and the limiting member is used to drive the second roller to move close to or away from the first roller to adjust the size of the roller clamping opening.

[0034] In one of the embodiments, the limiting member includes a first limiting block, a second limiting block, a limiting rod and a limiting spring.

[0035] The first limiting block is fixedly installed on the side wall of the limiting frame, the limiting rod is installed on the first limiting block, and the limiting rod is arranged along the length direction of the vertical through groove.

[0036] The second limiting block is slidingly installed on the limiting rod, and the second limiting block is connected and fixed with the end of the second roller.

[0037] The two ends of the limiting spring are respectively connected and fixed with the first limiting block and the second limiting block, and the limiting spring is used to keep the second limiting block away from the first limiting block.

[0038] In one of the embodiments, the reciprocating block further includes a cleaning member.

[0039] The cleaning member includes a plurality of cleaning brushes, a cleaning seat and a cleaning driving member, and the cleaning seat is installed on the limiting frame.

[0040] The plurality of cleaning brushes are rotatably installed on the cleaning seat, and the plurality of cleaning brushes are spaced apart and arranged on the opening side of the limiting frame, a cleaning opening for the cable to pass in is formed between adjacent cleaning brushes, and adjacent two cleaning brushes are transmissionally connected.

[0041] The cleaning driving member is installed on the cleaning seat, and the cleaning driving member is transmissionally connected with the cleaning brush.

[0042] In one of the embodiments, the moving length of the reciprocating block on the reciprocating screw is greater than the axial length of the winding roller.

[0043] From the above technical solutions, the present application has the following advantages:

[0044] The embodiment provides an emergency power supply switching trolley for a low-voltage distribution network, which comprises a trolley body, an input assembly and an output assembly. The input assembly comprises an input cable, an input wire lug and a cable input connector, the input wire lug and the cable input connector are respectively connected and fixed to two ends of the input cable, and the cable input connector is used for plug-in connection with a switching input quick connector. The output assembly comprises an output cable, an output wire lug, a cable output connector and a clamping piece, the output wire lug and the cable output connector are respectively connected and fixed to two ends of the output cable, the cable output connector is used for plug-in connection with a switching output quick connector, the output wire lug is detachably connected with the clamping piece, and the clamping piece is used for clamping a maintenance cable. Therefore, when in use, on the one hand, when connecting the power supply trolley and the emergency power supply switching trolley, if the output end of the power supply trolley is provided with a quick connector, the quick connector of the power supply trolley can be directly inserted into the switching input quick connector of the emergency power supply switching trolley, if the output end of the power supply trolley is a copper bar, the input wire lug of the input assembly can be connected with the copper bar of the power supply trolley, and the cable input connector of the input assembly is inserted into the switching input quick connector of the emergency power supply switching trolley, so that the power supply trolley can be electrically connected with the emergency power supply switching trolley regardless of whether the quick connector or the copper bar is used in the input end. On the other hand, when connecting the power utilization side and the emergency power supply switching trolley, the cable output connector of the output assembly is inserted into the switching output quick connector of the emergency power supply switching trolley, if the power utilization side is connected with an overhead line, the output wire lug is connected with the clamping piece, and the clamping piece is used for clamping the overhead line, if the power utilization side is connected with a low-voltage distribution network switch cabinet, the output wire lug is connected with the copper bar of the low-voltage distribution network switch cabinet, and if the input end of the power utilization side is provided with a quick connector, the quick connector can be directly inserted into the switching output quick connector, so that the power utilization side can be electrically connected with the emergency power supply switching trolley regardless of whether the overhead line, the copper bar of the low-voltage distribution network switch cabinet or other quick connectors are used in the output end. Therefore, the emergency power supply switching trolley can adapt to the use requirements of different use scenarios in the input end and the output end. BRIEF DESCRIPTION OF DRAWINGS

[0045] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description only show some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without any creative effort based on these drawings.

[0046] Figure 1 An application schematic diagram of the emergency power supply switching trolley for the low-voltage distribution network provided by the embodiment of the present application;

[0047] Figure 2 A whole structure schematic diagram of the emergency power supply switching trolley for the low-voltage distribution network provided by the embodiment of the present application;

[0048] Figure 3 The explosion structure schematic view of the insulating shell provided for the embodiment of the present application;

[0049] Figure 4 The structure schematic view of the insulating protective plate provided for the embodiment of the present application;

[0050] Figure 5 The structure schematic view of the metal frame provided for the embodiment of the present application;

[0051] Figure 6 The structure schematic view of the switching assembly provided for the embodiment of the present application;

[0052] Figure 7 The structure schematic view of the clamping piece provided for the embodiment of the present application;

[0053] Figure 8 The explosion structure schematic view of the clamping piece provided for the embodiment of the present application;

[0054] Figure 9 The structure schematic view of the output assembly provided for the embodiment of the present application;

[0055] Figure 10 The structure schematic view of the winding mechanism installed on the trolley body provided for the embodiment of the present application;

[0056] Figure 11 The structure schematic view of the winding mechanism provided for the embodiment of the present application;

[0057] Figure 12 The local enlarged structure schematic view of the winding mechanism provided for the embodiment of the present application;

[0058] Figure 13 The structure schematic view of the limiting frame provided for the embodiment of the present application;

[0059] Figure 14 The structure schematic view of the cleaning piece provided for the embodiment of the present application.

[0060] Reference signs:

[0061] Trolley body 1; insulating shell 10; metal frame 100; insulating protective plate 101; grounding wire lug 102; switching assembly 11; switching input quick connector 110; switching output quick connector 111; connecting piece 112; power input copper bar 1120; power output copper bar 1121; on-off control piece 113; insulating support piece 114;

[0062] Input assembly 2; input cable 20; input wire lug 21; cable input connector 22;

[0063] Output assembly 3;Output cable 30;Output cable lug 31;Cable output connector 32;Clamp 33;Mounting table 330;Hook recess 331;Mounting member 332;Adjustment recess 333;Threaded rod 334;Anti-tip column 335;

[0064] Winding mechanism 4;Winding drive 40;Winding assembly 41;Winding seat 410;Winding roller 411;Hanging rod member 4110;Driving gear 412;Reciprocating movement assembly 42;Reciprocating seat 420;Reciprocating screw 421;Guide rod 422;Reciprocating block 423;Movement block body 4230;Limiting frame 4231;First roller 4232;Second roller 4233;Limiting member 4234;First limiting block 42340;Second limiting block 42341;Limiting rod 42342;Limiting spring 42343;Cleaning member 4235;Cleaning brush 42350;Cleaning seat 42351;Cleaning drive 42352;Driven gear 424;

[0065] Overhead line 5. DETAILED DESCRIPTION

[0066] The embodiment of the present application provides an emergency power switching trolley for low-voltage distribution network, which is used for solving the technical problem that the switching trolley has single switching scene.

[0067] In order to make the invention purposes, features and advantages of the present application more obvious and easy to understand, the technical solutions in the embodiments of the present application will be described clearly and completely in combination with the drawings in the embodiments of the present application. Obviously, the following described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the present application.

[0068] Please refer to Figure 1 and Figure 2 The present application provides an emergency power switching trolley for low-voltage distribution network, which comprises:

[0069] The trolley body 1 is provided with a switching input quick connector 110 and a switching output quick connector 111 on the outer wall of the trolley body 1.

[0070] The input assembly 2 comprises an input cable 20, an input cable lug 21 and a cable input connector 22. The input cable lug 21 and the cable input connector 22 are respectively connected and fixed to the two ends of the input cable 20. The cable input connector 22 is used for plug-in connection with the switching input quick connector 110.

[0071] The output assembly 3 comprises an output cable 30, an output wire lug 31, a cable output connector 32 and a clamp 33. The output wire lug 31 and the cable output connector 32 are respectively connected and fixed with two ends of the output cable 30. The cable output connector 32 is used for pluggable connection with the adapter output quick connector 111. The output wire lug 31 is detachably connected with the clamp 33. The clamp 33 is used for clamping the maintenance cable.

[0072] In one use process of the embodiment, the operator needs to build the electrical connection between the input end of the emergency power supply adapter trolley and the power supply vehicle. The operator first judges the connection mode according to the output end style of the power supply vehicle. For example, when the output end of the power supply vehicle is provided with a quick connector, the quick connector of the power supply vehicle can be directly inserted into the adapter input quick connector 110 of the emergency power supply adapter trolley. When the output end of the power supply vehicle is a copper bar, the operator can connect the input wire lug 21 of the input assembly 2 with the copper bar of the power supply vehicle. Then, the operator needs to build the electrical connection between the input end of the emergency power supply adapter trolley and the power consumption side. At this time, the operator first judges the connection mode according to the output end style of the power supply vehicle. For example, when the power consumption side is connected with the overhead line 5, the output wire lug 31 is connected with the clamp 33, and the clamp 33 clamps the overhead line 5. When the power consumption side is connected with the low-voltage distribution network switch cabinet, the output wire lug 31 is connected with the copper bar of the low-voltage distribution network switch cabinet. When the input end of the power consumption side is provided with a quick connector, the quick connector can be directly inserted into the adapter output quick connector 111.

[0073] As can be seen, in the input end, whether the power supply vehicle is a quick connector or a copper bar, the electrical connection between the emergency power supply adapter trolley can be established. In the output end, whether it is the overhead line 5 or the copper bar of the low-voltage distribution network switch cabinet, the electrical connection between the emergency power supply adapter trolley can be established. The emergency power supply adapter trolley of the embodiment can adapt to the use requirements of different use scenarios in the input end and the output end.

[0074] In a specific embodiment, as shown in Figure 1 , Figure 2 and Figure 9 , further provided are the achievable structures of the input wire lug 21 and the output wire lug 31. The input wire lug 21 and the output wire lug 31 both adopt the typical wire lug model DTL-240 specification. The input wire lug 21 can be reliably connected with the bus bar bolt of the current low-voltage switch cabinet. The site personnel can select to hang the overhead line 5 for access through the clamp 33 or select to access through the input wire lug 21 by connecting the bus bar bolt of the low-voltage switch cabinet, so as to meet the needs of emergency power supply in multiple scenes. The output wire lug 31 can be connected with the wire lug of the current typical emergency power supply vehicle.

[0075] In a specific embodiment, further provided are the implementable structures of the cable input connector 22, the cable input connector 22, the adapter input quick connector 110 and the adapter output quick connector 111, the model selection of the adapter input quick connector 110 and the adapter output quick connector 111 is also adapted to the model of the typical quick connector of the power supply vehicle, and the cable input connector 22 and the cable input connector 22 are the same as the model of the quick connector of the power supply vehicle, which meets the use needs of the power supply vehicle of multiple models on site.

[0076] In a specific embodiment, as shown in Figure 7 and Figure 8 , further provided are the implementable structures of the clamping piece 33, which includes a mounting table 330, a hooking recess block 331, a mounting piece 332, an adjusting recess block 333 and a threaded rod 334; the hooking recess block 331 is fixedly installed on the mounting table 330, and a mounting hole is formed in the outer wall of the hooking recess block 331; the mounting piece 332 is detachably installed in the mounting hole, and the mounting piece 332 is used for penetrating through the output line ear 31; the adjusting recess block 333 is rotatably installed at the end of the threaded rod 334, specifically, a bearing base is installed at the end of the threaded rod 334, the bearing base is fixedly connected with the adjusting recess block 333, and the hooking clamping opening for clamping the cable is formed between the adjusting recess block 333 and the hooking recess block 331; the threaded rod 334 is screwed on the mounting table 330, that is, a screwing hole is formed in the mounting table 330, and the threaded rod 334 is screwed on the screwing hole, and the screwing movement of the threaded rod 334 is used to drive the adjusting recess block 333 to move close to or away from the hooking recess block 331 to adjust the size of the hooking clamping opening; in a specific implementation, when the output end of the emergency power supply adapter trolley is the overhead line 5, the operator connects the input line ear 21 and the clamping piece 33, establishes electrical connection between the clamping piece 33 and the output end of the emergency power supply adapter trolley, then hooks the hooking recess block 331 of the clamping piece 33 on the cable, and then controls the rotation of the threaded rod 334 to drive the adjusting recess block 333 to move close to or away from the hooking recess block 331, so as to flexibly adjust the size of the hooking clamping opening to meet the clamping needs of cables of different specifications.

[0077] In an embodiment, as shown in Figure 7 and Figure 8As shown, in order to prevent the problem that the hooking recessed block 331 and the adjusting recessed block 333 clamp the cable of the overhead line 5 not horizontally, the clamping piece 33 further comprises at least two anti-tilting columns 335; the mounting table 330 is further provided with at least two anti-tilting openings, which are located on opposite sides of the threaded rod 334; one end of each of the two anti-tilting columns 335 passes through the two anti-tilting openings and is fixedly connected with the adjusting recessed block 333, and the other end of each of the two anti-tilting columns 335 is fixedly connected with the telescopic end of the threaded rod 334; in specific implementation, when the operator controls the telescoping of the threaded rod 334, since one end of each of the two anti-tilting columns 335 is fixedly connected with the adjusting recessed block 333, the other end is fixedly connected with the telescopic end of the threaded rod 334, and each of the two anti-tilting columns 335 passes through the two anti-tilting openings on the mounting table 330, the anti-tilting column 335 will play a certain guiding and stabilizing role on the adjusting recessed block 333, preventing the situation that the adjusting recessed block 333 is not horizontal when it is pushed, thereby reducing the situation that the hooking recessed block 331 and the adjusting recessed block 333 clamp the cable of the overhead line 5 not horizontally, ensuring that the cable can be stably and horizontally clamped in the hooking clamping opening, and improving the stability and reliability of the work of the entire clamping piece 33.

[0078] In a specific embodiment, as shown in Figures 3 to 6 In order to reduce electrical risks, the trolley body 1 is further provided with a structure that can be implemented, which comprises an insulating shell 10 and a switching assembly 11; the switching assembly 11 comprises a switching input quick connector 110, a switching output quick connector 111, a connecting piece 112, an on-off control piece 113, and an insulating support piece 114; the switching input quick connector 110, the switching output quick connector 111, and the on-off control piece 113 are all insulatively installed on the insulating shell 10; the connecting piece 112 is conductively fixedly connected with the switching input quick connector 110, the switching output quick connector 111, and the on-off control piece 113; the insulating support piece 114 is installed on the inner bottom surface of the insulating shell 10, and is fixedly connected with the connecting piece 112, so that the connecting piece 112 and the insulating shell 10 form an air insulating interval; in specific implementation, the insulating support piece 114 forms an air insulating interval between the connecting piece 112 and the wall surface of the insulating shell 10, reducing the risk of electrical breakdown and leakage; and the operator can visually observe the operating parameters of the switch from outside through the on-off control piece 113, facilitating the real-time management and control of the electrical state of the emergency power supply process by the on-site personnel.

[0079] In an embodiment, as shown in Figures 3 to 5As shown, further provided is the implementable structure of the insulating shell 10, which comprises a metal frame 100, insulating protective plates 101 and grounding lugs 102. The insulating protective plates 101 are arranged on the six surfaces of the metal frame 100 to form the insulating shell 10. The insulating protective plates 101 are made of electrophoretic paint to realize the insulation and rust prevention of the shell, so as to prevent the staff from being electrocuted. One of the insulating protective plates 101 is designed as a door leaf, which is made of transparent acrylic material and supports opening for switching operation. Meanwhile, the transparent acrylic material allows the on-site personnel to intuitively observe the running parameters of the switch, so as to facilitate the real-time control of the electrical state of the emergency power supply process. Two opposite insulating protective plates 101 are provided with openings for installing the input adapter interface 110 and the output adapter interface 111. The grounding lugs 102 are connected and fixed with the metal frame 100. The grounding lugs 102 are connected with the ground through a grounding wire. In a specific implementation, if current leaks to the insulating shell 10, the current will be drained to the ground through the metal frame 100, the grounding lugs 102 and the grounding wire.

[0080] In an embodiment, as shown in Figure 6 Further provided is the implementable structure of the input adapter interface 110 and the output adapter interface 111. The input adapter interface 110 is fixedly installed on the outer plate of the insulating shell 10 and adopts a three-phase four-wire layout. There are four input adapter interfaces 110 in total, which are fixed by screws. The shell of the input adapter interface 110 is made of plastic and meets the requirements of insulation and protection. The inner part is made of aluminum metal and supports the quick connection with the power line of the power supply vehicle. The output adapter interface 111 is arranged on the opposite side of the insulating shell 10 from the input adapter interface 110. The structure, material and layout mode of the output adapter interface 111 are similar to those of the input adapter interface 110, which will not be described in detail here.

[0081] In an embodiment, as shown in Figure 6 Further provided is the implementable structure of the connecting piece 112, which comprises a power input copper bar 1120 and a power output copper bar 1121. The power input copper bar 1120 is connected with the input adapter interface 110 by screws and is supported and fixed by an insulating support 114 to form air insulation isolation with the cabinet wall to ensure safety. The power input copper bar 1120 is connected with the output adapter interface 111 under the support of the insulating support 114 to complete the input and output adaptation of the entire power supply of the emergency power supply vehicle. Meanwhile, the surfaces of the power input copper bar 1120 and the power output copper bar 1121 are covered with an insulating coating for insulation protection to prevent deformation and short circuit caused by external damage.

[0082] In an embodiment, further provided is the implementable structure of the on-off control piece 113, which is a circuit breaker. The circuit breaker switch has real-time screen display and monitoring of current and voltage parameters.

[0083] In an embodiment, as shown in Figure 6 Further provided is a structure of the insulating support 114, which comprises a plurality of insulating feet arranged in an array; the insulating feet comprise insulating springs, insulating top blocks and insulating bottom blocks; the two ends of the insulating springs are respectively connected and fixed with the insulating top blocks and the insulating bottom blocks; the insulating top blocks are connected with the connecting member 112, and the insulating bottom blocks are installed on the inner bottom surface of the insulating shell 10. In a specific implementation, through the elastic supporting effect of the insulating springs, the connecting member 112 can have a certain buffer space when subjected to external force, so as to avoid rigid collision with the insulating shell 10, thereby protecting the connecting member 112 and the insulating shell 10 from being damaged. At the same time, the array arrangement of the insulating feet can uniformly disperse the pressure received by the connecting member 112, thereby improving the stability and reliability of the entire insulating support 114.

[0084] In a specific embodiment, as shown in Figures 10 to 14As shown, further provided is an achievable structure of the winding mechanism 4, the emergency power supply switching trolley further comprising the winding mechanism 4; the winding mechanism 4 comprises a winding driving member 40, a winding assembly 41 and a reciprocating moving assembly 42; the winding assembly 41 comprises a winding seat 410, a winding roller 411 and a driving gear 412; the winding seat 410 is fixed on the trolley body 1, the winding seat 410 comprises two winding fixing plates, the two winding fixing plates are oppositely and fixedly installed on the insulating shell 10, the winding roller 411 is rotatably installed between the two winding fixing plates of the winding seat 410 through bearings, the winding roller 411 is provided with a hanging rod member 4110 for binding the power cable, the hanging rod member 4110 comprises a hanging rod and a hanging rod limiting cap, the power cable can be bound on the hanging rod, and the movement of the end portion of the power cable is limited through the hanging rod and the hanging rod limiting cap; the driving gear 412 is coaxially connected and fixed with the winding roller 411, specifically, the driving gear 412 is a gear ring structure, and the two ends of the winding roller 411 are connected and fixed with the gear ring structure; the reciprocating moving assembly 42 comprises a reciprocating seat 420, a reciprocating screw 421, a guide rod 422, a reciprocating block 423 and a driven gear 424; the reciprocating seat 420 is fixed on the trolley body 1, the reciprocating screw 421 is rotatably installed on the reciprocating seat 420, the guide rod 422 is installed on the reciprocating seat 420, the guide rod 422 is arranged along the axial direction of the reciprocating screw 421, that is, the axis of the guide rod 422 is arranged in parallel with the axis of the reciprocating screw 421, the reciprocating block 423 is slidably installed on the guide rod 422, the reciprocating block 423 is threadedly connected with the reciprocating screw 421, the reciprocating block 423 is used for passing the input power cable 20 or the output power cable 30, and the driven gear 424 is coaxially connected and fixed with the reciprocating screw 421, the driven gear 424 is meshingly connected with the driving gear 412, specifically, the driven gear 424 is a gear ring structure, and the two ends of the reciprocating screw 421 are connected and fixed with the gear ring structure; wherein the winding driving member 40 is used for driving the winding roller 411 to rotate to wind the power cable and driving the reciprocating block 423 to reciprocate on the reciprocating screw 421 to change the winding angle of the power cable on the winding roller 411.

[0085] In the specific implementation of the embodiment, the cable is threaded through the reciprocating block 423 and fixed on the winding roller 411. When the winding drive 40 is started, the output shaft drives the winding roller 411 to rotate. Since the driving gear 412 is coaxially connected and fixed with the winding roller 411, the driving gear 412 also rotates synchronously. Since the driven gear 424 is engaged with the driving gear 412, and the driven gear 424 is coaxially connected and fixed with the reciprocating screw 421, the rotation of the driving gear 412 drives the driven gear 424 to rotate, thereby driving the reciprocating screw 421 to rotate. The reciprocating block 423 is slidingly installed on the guide rod 422 and is threadedly connected with the reciprocating screw 421. During the rotation of the reciprocating screw 421, the reciprocating block 423 moves reciprocally along the axial direction of the guide rod 422. With the reciprocating movement of the reciprocating block 423, the winding angle of the input cable 20 or the output cable 30 on the winding roller 411 changes constantly, so that the cable can be uniformly wound on the winding roller 411, avoiding the situation that the cable is locally accumulated or loosely wound. This can reduce the damage caused by the friction, collision and extrusion of the cable, improve the efficiency and effect of winding, and ensure that the emergency power supply transfer trolley can quickly and smoothly deploy the cable for power supply operation when the input cable 20 or the output cable 30 is needed.

[0086] It can be understood that after being thus accommodated, the operator can quickly find the required input cable 20 or output cable 30 in an emergency, reducing the valuable time wasted in searching for the input cable 20 or output cable 30. In addition, the design also enhances the service life of the cable, because the uniform winding mode effectively avoids the damage of the cable caused by local excessive bending or stretching. When the emergency power supply transfer trolley is transported to the scene, the neatly wound cable is also convenient for rapid deployment, providing strong support for the emergency power supply of low-voltage distribution network.

[0087] In an embodiment, as Figures 10 to 14As shown, in order to better fix the cable on the reciprocating block 423, the reciprocating block 423 is further provided with an achievable structure, which comprises a moving block body 4230, a limiting frame 4231, a first roller 4232, a second roller 4233 and at least two limiting pieces 4234; the moving block body 4230 is slidingly installed on the guide rod 422, and the moving block is threadedly connected with the reciprocating screw 421; the limiting frame 4231 is fixedly connected with the moving block body 4230, and vertical through grooves are formed in the opposite two side walls of the limiting frame 4231; the two ends of the first roller 4232 are connected with the limiting frame 4231, and the two ends of the second roller 4233 are slidingly installed in the two vertical through grooves; the second roller 4233 is located above the first roller 4232, and a roller clamping opening for clamping the cable is formed between the first roller 4232 and the second roller 4233; the two limiting pieces 4234 are installed on the limiting frame 4231, and the two limiting pieces 4234 are fixedly connected with the two ends of the second roller 4233; the limiting piece 4234 is used to drive the second roller 4233 to move close to or away from the first roller 4232 to adjust the size of the roller clamping opening; in specific implementation, when it is necessary to adjust the size of the roller clamping opening, the limiting piece 4234 can be operated to drive the second roller 4233 to slide in the vertical through groove, so that the second roller 4233 moves close to or away from the first roller 4232, thereby changing the size of the roller clamping opening to adapt to cables of different specifications, ensuring that the cable can be stably clamped in the roller clamping opening, guaranteeing that the cable will not be loose or fall off during the reciprocating movement of storage, improving the stability and safety of power supply; meanwhile, the moving block body 4230 slides on the guide rod 422 and is threadedly connected with the reciprocating screw 421, so that when the reciprocating screw 421 rotates, the moving block body 4230 can be driven to move along the guide rod 422 in a reciprocating straight line, thereby realizing the reciprocating movement of the entire reciprocating block 423, and meeting different needs in the emergency power supply switching process.

[0088] Based on the above embodiments, as Figures 10 to 14 shown, the moving length of the reciprocating block 423 on the reciprocating screw 421 is greater than the axial length of the winding roller 411; in specific implementation, the moving length of the reciprocating block 423 on the reciprocating screw 421 is set to be greater than the axial length of the winding roller 411, which ensures that when the reciprocating block 423 reciprocates on the reciprocating screw 421, the moving range can completely cover the entire axial length of the winding roller 411, so that no matter where the cable wound on the winding roller 411 is located, the reciprocating block 423 can drive the cable to be uniformly distributed on the winding roller 411 through its movement, avoiding the problem that the cable is locally accumulated or not tightly wound during winding, improving the neatness and efficiency of cable winding, and further enhancing the stability and safety of the cable during storage and expansion.

[0089] In an embodiment, as shown in Figures 10 to 14 Further provided is an achievable structure of the limiting member 4234, which includes a first limiting block 42340, a second limiting block 42341, three limiting rods 42342, and a limiting spring 42343. The first limiting block 42340 is fixedly installed on the side wall of the limiting frame 4231. The three limiting rods 42342 are installed on the first limiting block 42340 and arranged along the length direction of the vertical through groove. The second limiting block 42341 is slidingly installed on the three limiting rods 42342, i.e., the second limiting block 42341 is provided with three limiting through holes for the limiting rods 42342 to pass through. The second limiting block 42341 is fixedly connected with the end portion of the second roller 4233. The limiting spring 42343 passes through the middle limiting rod 42342. The two ends of the limiting spring 42343 are fixedly connected with the first limiting block 42340 and the second limiting block 42341, respectively. The limiting spring 42343 is used to keep the second limiting block 42341 away from the first limiting block 42340. In a specific implementation, when it is needed to adjust the size of the roller clamping opening, an upward force is applied to the second limiting block 42341 to make it slide along the limiting rods 42342 towards the first limiting block 42340 in a direction away from the first limiting block 42340, so as to make the second limiting block 42341 drive the second roller 4233 to slide in the vertical through groove and move away from the first roller 4232, so as to increase the size of the roller clamping opening. When it is needed to increase the size of the roller clamping opening, the force applied to the second limiting block 42341 is reduced. Under the action of the elastic force of the limiting spring 42343, the second limiting block 42341 slides along the limiting rods 42342 in a direction away from the first limiting block 42340. The second limiting block 42341 drives the second roller 4233 to slide in the vertical through groove and move close to the first roller 4232, so as to decrease the size of the roller clamping opening. In this way, the cable is clamped, the stable clamping of the cable during the storage and reciprocating movement is ensured, and the stability and safety of power supply are improved.

[0090] In an embodiment, as shown in Figures 10 to 14As shown, in order to clean the input cable 20 and the output cable 30, the reciprocating block 423 further comprises a cleaning piece 4235; the cleaning piece 4235 comprises a plurality of cleaning brushes 42350, a cleaning seat 42351 and a cleaning driving piece 42352; the cleaning seat 42351 is installed on the limiting frame 4231, and the cleaning seat 42351 comprises two oppositely arranged cleaning vertical plates; the plurality of cleaning brushes 42350 are rotatably installed between the two cleaning vertical plates of the cleaning seat 42351 in an up-down arrangement, and the plurality of cleaning brushes 42350 are spaced apart and arranged on the opening side of the limiting frame 4231, the adjacent cleaning brushes 42350 form a cleaning opening for the cable to pass through, the end of the cleaning brush 42350 is provided with a transmission gear, and the adjacent two cleaning brushes 42350 are connected through the transmission gear; the cleaning driving piece 42352 is installed on the cleaning seat 42351, and the cleaning driving piece 42352 is connected with one of the cleaning brushes 42350; in specific implementation, when the input cable 20 or the output cable 30 is wound, the input cable 20 is connected and fixed in front of the winding roller 411, the cable passing through the first roller 4232 and the second roller 4233 passes through the cleaning opening formed by the two cleaning brushes 42350, when the cable is wound, the cleaning driving piece 42352 is started, the cleaning driving piece 42352 drives one of the cleaning brushes 42350 connected therewith to rotate, because the adjacent two cleaning brushes 42350 are connected, so the plurality of cleaning brushes 42350 will rotate synchronously, the cable passes through the cleaning opening formed between the adjacent cleaning brushes 42350, in the movement process of the cable, the rotating cleaning brush 42350 will brush the surface of the cable, so as to clean the dust, stains and other impurities on the surface of the cable, so as to ensure the cleanliness of the cable, avoid the influence of the dirty surface of the cable on the power supply performance, and further improve the stability and safety of the power supply.

[0091] In summary, the application provides an emergency power supply switching trolley for low-voltage distribution network, which is compact in shape and more suitable for transfer in rural roads than traditional large emergency power supply vehicles, solves the problems of the power supply vehicle not being able to enter, the excessive length of the transfer line, and the safety control exchange lag between the power supply vehicle and the on-site transfer point, can realize real-time observation of the electrical operation state of the line on site, can control the circuit on-off at any time, improves the work efficiency of on-site transfer and removal, and improves the operation safety level; the ground wire lug 102 provided on the insulating shell 10 can stably guide the hidden leakage current to the ground, reducing the safety hazard of personnel injury caused by leakage; the connecting assembly is designed to be adjustable and assemblable, which can effectively adapt to the fixed connection of various overhead lines 5 wire core diameters, improve the contact area, and reduce the power supply heating hazard; the power input and output interfaces of the trolley are adapted to the general interface design, at the input end, it can be connected with the cable lug of the power supply vehicle through the lug method, or it can be adapted to the quick connector of the current mainstream emergency power supply vehicle, at the output end, it can be connected with the overhead line 5, or it can be connected with the bus bar bolt of the low-voltage distribution network switch cabinet in the form of lug.

[0092] The various embodiments in the specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments, and the same or similar parts between the various embodiments can be referred to each other.

[0093] The above embodiments are only used to illustrate the technical solutions of the present application, but not limit it; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

[0094] Finally, it should be noted that in this paper, relationship terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between the entities or operations.

Claims

1. An emergency power supply transfer trolley for low-voltage distribution networks, characterized in that, include: The vehicle body has an input quick interface and an output quick interface on its outer wall; An input component includes an input cable, an input lug, and a cable input connector. The input lug and the cable input connector are respectively connected and fixed to both ends of the input cable. The cable input connector is used for plugging and unplugging connection with the adapter input quick-connect interface. The output component includes an output cable, an output lug, a cable output connector, and a clamp. The output lug and the cable output connector are respectively connected and fixed to both ends of the output cable. The cable output connector is used for plugging and unplugging connection with the adapter output quick interface. The output lug is detachably connected to the clamp, and the clamp is used to hold the maintenance cable.

2. The emergency power supply transfer trolley according to claim 1, characterized in that, The clamping component includes a mounting platform, a hook recess, a mounting component, an adjusting recess, and a threaded rod; The hook recess is fixedly installed on the mounting platform, and the outer wall of the hook recess is provided with a mounting hole; The mounting member is detachably installed in the mounting hole, and the mounting member is used to pass through the output cable lug; The adjusting recess is rotatably mounted on the end of the threaded rod, and a hook clamping opening for clamping the cable is formed between the adjusting recess and the hook recess. The threaded rod is screwed onto the mounting platform. The screwed movement of the threaded rod is used to move the adjusting recess closer to or further away from the hook recess to adjust the size of the hook clamping opening.

3. The emergency power supply transfer trolley according to claim 2, characterized in that, The clamping element also includes at least two anti-tilting posts; The mounting platform is also provided with at least two anti-tilting openings, which are located on opposite sides of the threaded rod. One end of each of the two anti-tilt posts passes through the two anti-tilt openings and is fixedly connected to the adjusting recess; the other end of each of the two anti-tilt posts is fixedly connected to the telescopic end of the threaded rod.

4. The emergency power supply transfer trolley according to claim 1, characterized in that, The vehicle body includes an insulating shell and a connecting assembly; The adapter assembly includes the adapter input quick interface, the adapter output quick interface, a connector, an on / off control component, and an insulating support component; The input quick-connect interface, the output quick-connect interface, and the on / off control component are all insulated and mounted on the insulating housing; The connector is electrically connected and fixed to the adapter input quick interface, the adapter output quick interface, and the on / off control component; The insulating support is installed on the inner bottom surface of the insulating shell, and the insulating support is connected and fixed to the connector so that the connector and the insulating shell form an air insulation gap.

5. The emergency power supply transfer trolley according to claim 4, characterized in that, The insulating support includes multiple insulating feet; The insulating foot includes an insulating spring, an insulating top block, and an insulating bottom block; the two ends of the insulating spring are respectively connected and fixed to the insulating top block and the insulating bottom block, the insulating top block is connected to the connector, and the insulating bottom block is installed on the inner bottom surface of the insulating shell.

6. The emergency power supply transfer trolley according to claim 1, characterized in that, The emergency power supply transfer trolley also includes a winding mechanism; The winding mechanism includes a winding drive, a winding assembly, and a reciprocating motion assembly; The winding assembly includes a winding seat, a winding roller, and a drive gear; the winding seat is fixed to the trolley body, the winding roller is rotatably mounted on the winding seat, and the drive gear is coaxially connected and fixed to the winding roller; The reciprocating motion assembly includes a reciprocating seat, a reciprocating screw, a guide rod, a reciprocating block, and a driven gear. The reciprocating seat is fixed to the trolley body. The reciprocating screw is rotatably mounted on the reciprocating seat. The guide rod is mounted on the reciprocating seat and arranged along the axial direction of the reciprocating screw. The reciprocating block is slidably mounted on the guide rod and threadedly connected to the reciprocating screw. The reciprocating block is used for the input cable or the output cable to pass through. The driven gear is coaxially connected and fixed to the reciprocating screw and meshes with the driving gear. The winding drive is used to drive the winding roller to rotate to wind up the cable, and to drive the reciprocating block to reciprocate on the reciprocating screw to change the winding angle of the cable on the winding roller.

7. The emergency power supply transfer trolley according to claim 6, characterized in that, The reciprocating block includes a moving block body, a limiting frame, a first roller, a second roller, and at least two limiting members; The moving block body is slidably mounted on the guide rod, and the moving block is threadedly connected to the reciprocating screw. The limiting frame is connected and fixed to the moving block body, and vertical through slots are provided on the opposite side walls of the limiting frame; Both ends of the first roller are connected to the limiting frame, and both ends of the second roller are slidably installed in the two vertical through slots, forming a roller clamping port for clamping the cable between the first roller and the second roller; Both limiting members are installed on the limiting frame, and the two limiting members are respectively connected and fixed to both ends of the second roller. The limiting members are used to drive the second roller to move closer to or further away from the first roller to adjust the size of the roller clamping opening.

8. The emergency power supply transfer trolley according to claim 7, characterized in that, The limiting component includes a first limiting block, a second limiting block, a limiting rod, and a limiting spring; The first limiting block is fixedly installed on the side wall of the limiting frame, and the limiting rod is installed on the first limiting block. The limiting rod is arranged along the length direction of the vertical through groove. The second limiting block is slidably mounted on the limiting rod, and the second limiting block is connected and fixed to the end of the second roller; The two ends of the limiting spring are respectively connected and fixed to the first limiting block and the second limiting block, and the limiting spring is used to keep the second limiting block away from the first limiting block.

9. The emergency power supply transfer trolley according to claim 7, characterized in that, The reciprocating block also includes a cleaning component; The cleaning component includes multiple cleaning brushes, a cleaning seat, and a cleaning drive component; the cleaning seat is mounted on the limiting frame; Multiple cleaning brushes are rotatably mounted on the cleaning seat, and the multiple cleaning brushes are spaced apart on the opening side of the limiting frame. A cleaning port for cable to pass through is formed between adjacent cleaning brushes, and two adjacent cleaning brushes are connected by a transmission. The cleaning drive unit is mounted on the cleaning seat, and the cleaning drive unit is connected to the cleaning brush in a driving connection.

10. The emergency power supply transfer trolley according to claim 7, characterized in that, The moving length of the reciprocating block on the reciprocating screw is greater than the axial length of the take-up roller.

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