Portable mobile low-voltage fault wire bridging device and method

Abstract

According to the portable mobile low-voltage fault wire bridging device and method, under the condition that power supply and consumption are guaranteed preferentially, fault point searching and repairing work of a fault wire is carried out, and the efficiency and safety of cable fault processing are improved; a portable mobile low-voltage fault wire bridging device comprises a fixing support, the fixing support comprises a left support and a right support, the left support is fixedly connected with a first baffle disc, the right support is fixedly connected with a second baffle disc, a plurality of fixing shafts are arranged between the first baffle disc and the second baffle disc in the circumferential direction, and the fixing shafts are connected with the left support and the right support. Bearings are arranged in the middle of the first baffle disc and the middle of the second baffle disc respectively, threaded sleeves used for connection are arranged in one ends of the bearings, the other ends of the bearings are connected with handles, the threaded sleeves on the two sides are connected with a phase line and a zero line respectively, the phase line and the zero line are wound on a fixing shaft respectively, and a transfer box is arranged on the outer side of the first baffle disc. And an air switch is arranged in the transfer box.

Description

Technical Field

[0001] The invention relates to the technical field of wire bridging, and in particular to a portable mobile low-voltage fault wire bridging device. Background Art

[0002] With the continuous development of infrastructure such as electricity and communications, cables are used more and more widely. However, cables may fail during use due to various reasons, such as disconnection, poor contact, etc. These failures have brought considerable challenges to residential electricity use and distribution network maintenance. The following is a description of the steps to solve cable failures:

[0003] Fault location: Use the method of testing insulation with both ends open to accurately determine the specific section of the faulty cable. Use the bridge method or other positioning techniques to further narrow the scope of the fault point.

[0004] Prepare bridging materials: According to the specifications and types of cables, prepare suitable bridging materials, such as bridging joints, insulating materials, fixing clamps, etc. Ensure that all bridging materials meet relevant standards and have good conductivity and insulation.

[0005] Bridging operation: Cut the faulty cable on both sides of the determined fault point and keep the cut smooth. Use professional tools to strip the insulation layer at both ends of the cable to expose an appropriate amount of wire. Connect the two ends of the bridging joint to the wires of the two cable sections respectively. The connection method can be selected by crimping, welding or screw fastening. Use insulating materials to strictly insulate the bridge to prevent leakage and short circuit. Use a fixing fixture to firmly fix the bridging device on the cable to ensure its stability and reliability.

[0006] The above cable fault solution steps include fault location, preparation of bridging materials and bridging operation. In actual operation, the following problems may arise:

[0007] (1) Increased wiring difficulty: The bridging solution requires the use of additional bridging connectors and connecting wires, which may increase the complexity of wiring. Especially in complex circuits or cable systems, bridging may cause the interweaving and confusion of connecting wires, thereby increasing the difficulty of installation and maintenance.

[0008] (2) Space occupation: Bridging devices and additional connecting wires take up more space, which can become a problem in space-constrained environments. For example, in small equipment or compact electrical cabinets, space occupation may limit the installation of other components or affect the overall layout of the system.

[0009] (3) Cost considerations: Although the bridging solution can quickly restore the function of the cable, the use of high-quality bridging materials and connectors may increase costs. In addition, if bridging operations are required frequently, the cumulative cost will be higher.

[0010] (4) Reliability and durability: The reliability and durability of the bridge joint may not be as good as the original cable. The bridge point may become a potential failure point, especially under harsh environmental conditions (such as high temperature, humidity, corrosion, etc.), the performance of the bridge joint may be affected.

[0011] (5) Safety risks: Bridging operations require professional personnel to perform. If the operation is not done properly, it may cause safety problems such as short circuits and fires. In addition, if the insulation treatment of the bridging joint is not perfect, there is also a risk of electric shock.

[0012] (6) Difficulty in detection and maintenance: The bridged cable system may be more difficult to detect faults and perform preventive maintenance. The presence of the bridge point may interfere with conventional detection signals, making fault location more difficult. At the same time, regular inspection and maintenance of the bridge point will also increase workload and cost.

[0013] In order to improve the stability and reliability of the cable system, the present technical solution aims to design a fault cable bridging device which can quickly and effectively bridge the faulty cable and restore the normal use of the cable when the cable fails. Summary of the invention

[0014] The present invention aims to address the technical defects of the prior art and provide a portable and mobile low-voltage fault wire bridging device and method, which can find and repair the fault points of faulty wires while giving priority to ensuring power supply, thereby improving the efficiency and safety of cable fault handling.

[0015] The present invention provides the following technical solution: a portable and mobile low-voltage fault wire bridging device, comprising a fixed bracket, the fixed bracket comprising a left bracket and a right bracket, the left bracket being fixedly connected to a first baffle, the right bracket being fixedly connected to a second baffle, a fixed shaft being provided between the first baffle and the second baffle, a plurality of fixed shafts being arranged along the circumferential direction, bearings being respectively arranged between the first baffle and the second baffle, a threaded sleeve for connection being arranged inside one end of the bearing, a handle being connected to the other end of the bearing, the threaded sleeves on both sides being respectively connected to a phase line and a neutral line, the phase line and the neutral line being respectively wound around the fixed shaft, a transfer box being arranged outside the first baffle, an air switch being arranged inside the transfer box.

[0016] Preferably, the phase line and the neutral line are single-core 50mm2 multi-strand soft copper wires.

[0017] Preferably, the second baffle plate adopts an open spoke structure, a plurality of radially extending spokes are arranged around the center point, and hollow areas are formed between the spokes.

[0018] Preferably, rollers are provided at the bottom of the left bracket and the bottom of the right bracket, and self-locking devices are provided on the rollers.

[0019] Preferably, the top of the air switch is used to connect to the distribution board at the fault end of the residential building, the three phases of the air switch are connected in parallel to one end of the phase line, one end of the neutral line is connected to the terminal block, and the other ends of the phase line and the neutral line are respectively connected to the distribution board of the adjacent building to draw power.

[0020] Preferably, the fixed shaft is made of non-magnetic material.

[0021] Preferably, two groups of reinforcing ribs are provided on the fixing frame, and reflective strips are bonded to the surfaces of the reinforcing ribs.

[0022] Preferably, it further comprises a shock absorbing belt, wherein a groove is provided on the inner side of the shock absorbing belt, and the groove can be used to accommodate the phase line and the neutral line.

[0023] Preferably, a flashing warning light is provided on the top of the adapter box.

[0024] A portable mobile low-voltage fault wire bridging method, using a portable mobile low-voltage fault wire bridging device, performs the following steps:

[0025] Step 1: The distribution board at the fault end of the residential building is connected to the top of the air switch;

[0026] Step 2, the three phases of the air switch are connected in parallel to the phase line, the neutral line is connected to the terminal block, and the other ends of the phase line and the neutral line are respectively connected to the distribution board of the adjacent building to obtain power;

[0027] Step 3, turn on the air switch and the residential buildings will be powered normally.

[0028] Compared with the prior art, the present invention has the following beneficial effects:

[0029] The present invention discloses a portable low-voltage fault wire bridging device, which can search and repair fault points of faulty wires while giving priority to power supply, aiming to improve the efficiency and safety of cable fault handling;

[0030] Fixed bracket design: The device includes two brackets, namely a left bracket and a right bracket, which constitute the basic structure of the device. The left bracket is fixedly connected to the first baffle, and the right bracket is fixedly connected to the second baffle. The two baffles are used to fix and guide the wires;

[0031] Fixed shaft and bearing: A fixed shaft is provided between the first baffle and the second baffle. These shafts are arranged along the circumference to ensure the winding of the wire. Bearings are arranged in the middle of the baffles. A threaded sleeve is provided inside one end of these bearings for connecting the wire, and a handle is connected to the other end for easy operation.

[0032] Wire connection: One end of the bearing is connected to the phase line and the neutral line respectively, and these wires are wound around the fixed shaft to ensure the fixation and bridging of the wires;

[0033] Transfer box and air switch: A transfer box is set outside the first baffle, and an air switch is installed inside the box to control the on and off of the circuit to ensure safe operation;

[0034] The device can quickly bridge the faulty cable and restore the normal use of the cable. While ensuring power supply, it can find and repair the fault point of the faulty wire, which improves the efficiency of fault handling. The design includes an air switch, which can quickly cut off the power supply in the event of a short circuit or other abnormal situation to protect the safety of operators and equipment. Since the device is designed to be portable, it can be easily moved to the fault site, which improves the flexibility of fault handling. The design includes a handle to facilitate the operator to retract and release the wires.

[0035] The design of this device takes into account quick response, easy operation and safety. It is suitable for emergency handling of low-voltage cable faults. Through this design, power supply can be restored in the shortest time possible, reducing power outages caused by cable faults. It also facilitates the precise positioning and repair of fault points. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is a schematic diagram of a three-dimensional structure of a specific embodiment of the present invention;

[0037] Figure 2 It is a schematic diagram of unwound wires;

[0038] Figure 3 This is a schematic diagram of the transfer box.

[0039] Description of reference numerals:

[0040] 1. Fixed bracket; 2. Fixed shaft; 3. Phase line; 4. Neutral line; 5.

[0041] Bearing; 6. Adapter box; 7. Air switch; 8. First gear plate; 9. Second gear plate; 10. Roller; 11. Reinforcement rib; 12. Handle. DETAILED DESCRIPTION

[0042] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. All other embodiments obtained by ordinary technicians in the field without making creative work based on the embodiments of the present invention shall fall within the scope of protection of the present invention.

[0043] like Figures 1 to 3 As shown, it shows a specific embodiment of the present invention: Figures 1 to 3As shown, a portable mobile low-voltage fault wire bridging device disclosed in the present invention is characterized in that it includes a fixed bracket 1, the fixed bracket 1 includes a left bracket and a right bracket, the left bracket is fixedly connected to a first baffle 8, the right bracket is fixedly connected to a second baffle 9, a fixed shaft 2 is provided between the first baffle 8 and the second baffle 9, a plurality of the fixed shafts 2 are arranged along the circumferential direction, bearings 5 ​​are respectively arranged in the middle of the first baffle 8 and the second baffle 9, a threaded sleeve for connection is provided inside one end of the bearing 5, a handle 12 is connected to the other end of the bearing 5, the threaded sleeves on both sides are respectively connected to the phase line 3 and the neutral line 4, the phase line 3 and the neutral line 4 are respectively wound on the fixed shaft 2, a transfer box 6 is arranged on the outer side of the first baffle 8, and an air switch 7 is arranged inside the transfer box 6.

[0044] Preferably, Figures 1 to 3 As shown, the phase line 3 and the neutral line 4 are single-core 50mm 2 Stranded soft copper wire.

[0045] When selecting the type of wire, we tested armored wire, but we decided not to use it because it is difficult to construct, heavy, and particularly difficult to construct in winter. Similarly, although recyclable flexible wire is convenient for long-term deployment and recycling, it is also excluded because it is very prone to internal failure. After comprehensive comparison, we chose single-core 50mm 2 The bridging method of multiple strands of soft copper wires is not only relatively simple to construct, but also of moderate quality. Construction in winter will not be greatly affected. More importantly, it can effectively ensure the stability and durability of the wires.

[0046] Preferably, Figures 1-2 As shown, the second baffle plate 9 adopts an open spoke structure, with a plurality of radially extending spokes arranged around the center point thereof, and hollow areas formed between the spokes.

[0047] The second gear plate is specially designed with a spoke structure, and the middle part is hollow. Specifically:

[0048] Spoke design: The second disc is not a complete disc, but is composed of several spokes arranged radially from the center to the outside. These spokes not only maintain the strength and stability of the disc, but also achieve the hollow effect of the middle part.

[0049] Hollow center: Since the space between the spokes is not filled, a clear hollow area is formed in the middle of the second disc. This design not only reduces the weight of the disc, but also improves its ventilation and heat dissipation performance, helping to maintain the stability of the device during long-term use.

[0050] To sum up, the second gear plate adopts a spoke design with a hollow middle part, which not only meets the requirements of structural strength but also optimizes the overall performance of the device.

[0051] Preferably, Figures 1-2 As shown, rollers 10 are provided at the bottom of the left bracket and the right bracket, and a self-locking device is provided on the rollers 10.

[0052] In the portable mobile low-voltage fault wire bridging device, rollers 10 are arranged at the bottom of the left bracket and the right bracket, and the rollers are equipped with self-locking devices.

[0053] The rollers 10 are installed at the bottom of the left bracket and the right bracket. The main purpose is to facilitate the movement and handling of the entire device. Through the rollers, the operator can easily push or pull the device to move it to the required position. The design of the rollers usually takes into account wear resistance, load-bearing capacity and rolling smoothness to ensure the stability and durability of the device during movement.

[0054] The self-locking device is an important component of the roller 10, which can lock the roller when needed to prevent the device from moving by itself when no external force is applied. This design is crucial to ensure the stability and safety of the device during use.

[0055] Specifically, the working principle of the self-locking device of the present invention is:

[0056] Mechanical self-locking: The roller is locked by a locking piece of the mechanical structure. When the roller needs to be locked, the operator can manually operate the mechanical structure to fix it with the roller or bracket to prevent the roller from rolling.

[0057] When the device is placed at the position where it needs to work, the self-locking device can lock the rollers to prevent the device from moving due to external force during operation, ensuring the smooth progress of the work.

[0058] In summary, the rollers 10 disposed at the bottom of the left bracket and the right bracket and the self-locking device thereon provide convenient mobility and stability for the portable mobile low-voltage fault wire bridging device. This design enables the device to be easily moved to the required position and remain stable during use, thereby improving work efficiency and safety.

[0059] Preferably, Figure 3 As shown, the top of the air switch 7 is used to connect to the distribution board at the fault end of the residential building. The three phases of the air switch 7 are connected in parallel to one end of the phase line 3, one end of the neutral line 4 is connected to the terminal block, and the other ends of the phase line 3 and the neutral line 4 are respectively connected to the distribution board of the adjacent building to obtain power.

[0060] This device is designed to solve the problem of distribution network cable failure, aiming to quickly restore electricity to residents, while allowing staff to find and repair the fault point of the faulty wire while giving priority to power supply. By accessing the power resources of adjacent buildings, this device can quickly provide temporary power supply to the faulty building, reducing the time and scope of power outages caused by the fault.

[0061] As an important component of the portable low-voltage fault wire bridging device, the air switch 7 is designed to be connected to the distribution board at the fault end of the residential building. It plays a key role in quickly restoring power supply in an emergency. In the device, the air switch 7 is located in the transfer box, and through reasonable layout and design, the convenience and safety of operation are ensured.

[0062] Its access method and working mechanism:

[0063] Connect three phases of air switch to one phase:

[0064] Since residential electricity is usually single-phase, and the distribution network cable may contain three-phase electricity, this device adopts the method of three-phase and one-phase when connected to the air switch. This means that the phase line (usually single-phase) connected from the adjacent building will be connected to one of the three input terminals of the air switch, while the other two input terminals are unused or used for other purposes (such as backup or protection).

[0065] This design ensures that even in a three-phase power system, the device can adapt to the needs of single-phase power and realizes flexible conversion from three-phase to single-phase.

[0066] Phase and neutral line access:

[0067] The phase line and neutral line are connected to the device from the distribution board of the adjacent building. The phase line is the main line for power transmission, responsible for transmitting power from the adjacent building to the faulty building; while the neutral line plays a role in balancing the load and ensuring voltage stability.

[0068] During the access process, the phase line and the neutral line are connected to the circuit part in the device through appropriate connection methods (such as bolt connection, crimping, etc.), ensuring the stable transmission of electricity and the safety of the circuit.

[0069] Rapid power restoration:

[0070] Once the phase and neutral lines are successfully connected to the device and the circuit is switched on and off through the air switch, the power supply to the faulty building can be quickly restored. This rapid response mechanism greatly reduces the power outage time caused by the fault and the impact on residents' lives.

[0071] Finding and repairing fault points of faulty wires:

[0072] After the power is restored, the staff can immediately start the fault point search and repair work of the faulty wire. Because the device provides a temporary power supply, the fault search and repair work can be carried out without interrupting the power supply to the residents.

[0073] Staff can use professional detection tools and equipment to locate the fault point and take appropriate repair measures (such as replacing damaged cables, repairing joints, etc.) to restore the normal operation of the power system.

[0074] In summary, this portable low-voltage fault wire bridge device provides an effective solution to the distribution network cable fault problem through flexible access methods and rapid response mechanisms. It can not only quickly restore residential electricity, but also carry out fault finding and repair work while ensuring power supply, greatly improving the reliability and stability of the power system.

[0075] Preferably, Figure 2 As shown, the fixed shaft 2 is made of non-magnetic material.

[0076] The fixed shaft 2 is a part of the internal mechanical structure of the portable low-voltage fault wire bridging device, and is usually used to support, fix or wrap other components to ensure the stability and reliability of the entire device. The material selection of the fixed shaft 2 has an important impact on its performance and service life.

[0077] Non-magnetic materials refer to materials that are not easily attracted or magnetized by magnetic fields. In the portable low-voltage fault wire bridging device, the fixed shaft 2 is made of non-magnetic materials for the following reasons:

[0078] (1) Avoid electromagnetic interference:

[0079] Since the device may involve power transmission and distribution, there may be electromagnetic fields around it. If the fixed shaft 2 is made of magnetic conductive material, it may become a conductive path for electromagnetic interference, affecting the stability and safety of the circuit.

[0080] The use of non-magnetic materials can avoid this situation and ensure the normal operation of the circuit and accurate transmission of data.

[0081] (2) Improve accuracy and stability:

[0082] In some precision mechanical structures, even a slight deformation or magnetization of the fixed shaft may affect the accuracy and stability of the entire device.

[0083] The non-magnetic material has better deformation resistance and stability, and can ensure that the fixed shaft 2 maintains its original shape and size during long-term use.

[0084] (3) Reduce weight and cost:

[0085] Compared with some magnetic metals (such as iron, nickel, etc.), non-magnetic materials (such as aluminum alloy, stainless steel, etc.) usually have lighter weight and lower cost.

[0086] This helps reduce the weight of the entire device, improves portability, and reduces production costs.

[0087] In summary, the use of non-magnetic material for the fixed shaft 2 is an important design choice in the portable mobile low-voltage fault wire bridging device. It can avoid electromagnetic interference, improve accuracy and stability, and reduce weight and cost. When selecting non-magnetic material, factors such as mechanical properties, corrosion resistance and processing performance need to be considered to ensure the performance and service life of the fixed shaft 2.

[0088] Preferably, Figures 1-2 As shown, two groups of reinforcing ribs 11 are arranged on the fixing frame, and reflective strips are bonded to the surfaces of the reinforcing ribs 11.

[0089] As an important component of the portable low-voltage fault wire bridging device, the main function of the fixing frame is to provide support and fixation to ensure that the internal components of the device can work stably and reliably. The design of the fixing frame usually needs to consider its load-bearing capacity, stability and durability to meet the needs of the device in actual use.

[0090] Since the phase line and the neutral line must have sufficient length and be wound around the fixed shaft, the fixing frame must bear sufficient weight. In order to further improve the strength and stability of the fixing frame, two sets of reinforcing ribs 11 are specially provided. The reinforcing ribs 11, as an additional structure of the fixing frame, can effectively improve the bearing capacity and anti-deformation ability of the fixing frame by increasing the thickness and cross-sectional area of ​​the material.

[0091] Specifically, the reinforcing ribs 11 are usually arranged along the force direction of the fixing frame to form a certain rib structure. This design can not only disperse and resist external loads, but also improve the overall rigidity and stability of the fixing frame. In practical applications, the number, position and shape of the reinforcing ribs 11 may be adjusted and optimized according to the specific structure and force conditions of the fixing frame.

[0092] On the other hand, in order to enhance the visibility of the fixing frame at night or in a dark environment, a reflective strip is particularly bonded to the surface of the reinforcing rib 11. The reflective strip is a material that can reflect light under light, and usually has high brightness and good durability.

[0093] The bonding of reflective strips not only improves the visibility of the bracket, but also provides a safer working environment for operators. At night or in a dimly lit environment, operators can more easily identify the position and shape of the bracket, thereby avoiding safety risks such as misoperation and collision.

[0094] In practical applications, the design of providing reinforcing ribs 11 and bonding reflective strips on the fixing frame can be widely used in various occasions where strength and visibility need to be improved, such as power equipment, transportation facilities, building structures, etc. This design can not only improve the stability and safety of the equipment, but also provide operators with a better working environment and a more convenient operating experience.

[0095] Preferably, it further comprises a shock absorbing belt, wherein a groove is provided on the inner side of the shock absorbing belt, and the groove can be used to accommodate the phase line 3 and the neutral line 4.

[0096] Considering the diversity of distribution network maintenance sites, wires may be laid across roads. In order to reduce damage to the lines by vehicles and personnel, we cover the cross-road part with a special shock-absorbing belt. This design can not only effectively reduce the impact of vibration on the wires, but also protect the wires from external damage to a certain extent, thereby extending the service life of the wires.

[0097] The shock-absorbing strip is an elastic strip material with grooves on the inside. These grooves are designed to accommodate the phase wire 3 and the neutral wire 4, ensuring that the wires remain stable during the laying process. The shock-absorbing strip is usually made of a wear-resistant and corrosion-resistant elastic material, such as rubber or plastic, to ensure its reliability and durability in long-term use.

[0098] The groove design not only provides space for the wires, but also plays multiple protective roles. First, the groove can limit the movement of the wires to prevent them from being excessively pulled or squeezed when vehicles and people pass by. Second, the shape and size of the groove can be adjusted according to the specifications of the wires to ensure that the wires are optimally fixed and protected in the groove.

[0099] After covering the part crossing the road with a special shock-absorbing strip, the wires are more fully protected. The shock-absorbing strip can effectively reduce the impact of vibration and shock on the wires, thereby reducing the risk of damage to the wires due to external forces.

[0100] In practical applications, the design of the shock-absorbing belt not only improves the stability and safety of the wires, but also extends the service life of the wires. Since the damage to the wires by external factors is reduced, the maintenance cost of the wires is also reduced accordingly, thereby improving the economy and reliability of the entire power transmission and distribution system.

[0101] In summary, the design of a portable mobile low-voltage fault wire bridging device including a shock-absorbing belt not only improves the stability and safety of the wires, but also extends the service life of the wires, providing a more reliable and economical solution for power transmission and distribution systems.

[0102] The device has excellent scalability, can flexibly combine different types of wires, effectively extend the length of the power supply wires, and easily connect other bypass devices. It can meet the wire line needs of various residential users, connect as needed, and combine arbitrarily. It is flexible and convenient to use, greatly improving work efficiency.

[0103] When it is necessary to cross the road, a special shock-absorbing belt can be covered on the top of the device to ensure safety and stability. The fixed frame can also be designed as a foldable support frame with adjustable height, which can flexibly adjust the height according to the actual situation on site, which is very convenient and practical. On the premise of ensuring power supply, the device can also assist in the search and repair of fault points of faulty wires. It is recommended that each class be equipped with a set of this device for emergency use to ensure foolproof power supply.

[0104] Preferably, a flashing warning light is provided on the top of the adapter box 6.

[0105] The device can also be equipped with lighting devices, portable wire accessories and safety supplies to ensure convenient and safe operation. Safety warning words can be marked on the fixed bracket and equipped with safety warning lights to remind surrounding personnel to pay attention to safety. When necessary, a temporary one-fire-one-zero wiring method can be adopted to temporarily transfer power from nearby power points to ensure uninterrupted power supply.

[0106] A portable mobile low-voltage fault wire bridging method, using a portable mobile low-voltage fault wire bridging device, performs the following steps:

[0107] Step 1, the distribution board at the fault end of the residential building is connected to the top of the air switch 7;

[0108] Step 2, the three phases of the air switch 7 are connected in parallel to the phase line 3, the neutral line 4 is connected to the terminal block, and the other ends of the phase line 3 and the neutral line 4 are respectively connected to the distribution board of the adjacent building to obtain power;

[0109] Step 3, turn on the air switch 7, and the residential building will be powered normally.

[0110] The following is a detailed description of a portable mobile low-voltage fault wire bridging method, which uses a portable mobile low-voltage fault wire bridging device, and the specific execution steps are as follows:

[0111] We first need to determine the location of the distribution board at the fault end in the residential building. Then, use professional electrical tools and connection equipment to safely and reliably connect the distribution board to the top of the air switch 7 in the portable mobile low-voltage fault wire bridging device. The key to this step is to ensure the safety and stability of the connection to avoid electrical failures or safety accidents that may occur during the subsequent power-on process.

[0112] In actual operation, the distribution board may need to be appropriately modified or adjusted to meet the requirements of the bridging device. At the same time, in order to ensure the safety of the operation, it is necessary to cut off the power supply of the residential building and strictly abide by the electrical safety operation procedures during the entire bridging process.

[0113] In step 2, we need to connect the three-phase input terminals of the air switch 7 in parallel to the phase line 3 obtained from the distribution board of the adjacent building. Since residential electricity is usually single-phase electricity, we can choose one of the phases as the main power input source. At the same time, the neutral line 4 is connected to the terminal block in the bridge device to ensure the balance and stability of the circuit.

[0114] In order to ensure the normal transmission and distribution of electricity, the other ends of the phase line 3 and the neutral line 4 need to be connected to the distribution board of the adjacent building respectively, so as to use the power resources of the adjacent building to provide temporary power supply for the faulty building. In this process, it is necessary to pay attention to the reliability and safety of the electrical connection, and avoid possible electrical interference or short circuit problems.

[0115] After completing the above two steps, we can conduct a power-on test. First, we need to ensure that all electrical connections have been correctly and securely installed, and all safety measures are in place. Then, we can gradually open the air switch 7 to allow power to be transmitted from the adjacent building through the bridge device to the distribution board of the faulty building.

[0116] During the power-on process, once we confirm that the circuit is operating normally and the power supply to the residential building has been restored, we can consider that the bridging operation has been successfully completed.

[0117] In summary, this portable mobile low-voltage fault wire bridging method uses a portable mobile low-voltage fault wire bridging device, which can provide temporary power supply to residential buildings through simple and fast operation steps, ensuring that residents can quickly restore power when a power failure occurs. At the same time, the method also has certain flexibility and scalability, and can adapt to the needs of power failure repair of different scales and types.

[0118] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the field without departing from the purpose of the present invention. These changes involve related technologies well known to those skilled in the art, which all fall within the scope of protection of the patent of the present invention.

[0119] Many other changes and modifications may be made without departing from the concept and scope of the present invention.It should be understood that the present invention is not limited to the specific embodiments, and the scope of the present invention is defined by the appended claims.

Claims

1. A portable low-voltage fault wire bridging device, characterized in that: The invention comprises a fixed bracket (1), wherein the fixed bracket (1) comprises a left bracket and a right bracket, wherein a first baffle (8) is fixedly connected to the left bracket, and a second baffle (9) is fixedly connected to the right bracket, wherein a fixed shaft (2) is arranged between the first baffle (8) and the second baffle (9), and a plurality of the fixed shafts (2) are arranged along the circumferential direction, and bearings (5) are arranged between the first baffle (8) and the second baffle (9), respectively, and a threaded sleeve for connection is arranged inside one end of the bearing (5), and a handle (12) is connected to the other end of the bearing (5), and the threaded sleeves on both sides are respectively connected to a phase line (3) and a neutral line (4), and the phase line (3) and the neutral line (4) are respectively wound around the fixed shaft (2), and a transfer box (6) is arranged outside the first baffle (8), and an air switch (7) is arranged inside the transfer box (6).

2. A portable low-voltage fault wire bridging device according to claim 1, characterized in that: The phase line (3) and the neutral line (4) are single-core 50mm 2 Stranded soft copper wire.

3. A portable low-voltage fault wire bridging device according to claim 2, characterized in that: The second baffle (9) adopts an open spoke structure, with a plurality of radially extending spokes arranged around the center point, and hollow areas formed between the spokes.

4. A portable low-voltage fault wire bridging device according to claim 3, characterized in that: Rollers (10) are arranged at the bottom of the left bracket and the right bracket, and a self-locking device is arranged on the rollers (10).

5. A portable low-voltage fault wire bridging device according to any one of claims 1 to 4, characterized in that: The top of the air switch (7) is used to connect to the distribution board at the fault end of the residential building. The three phases of the air switch (7) are connected in parallel to one end of the phase line (3), one end of the neutral line (4) is connected to the terminal block, and the other ends of the phase line (3) and the neutral line (4) are respectively connected to the distribution board of the adjacent building to obtain power.

6. A portable low-voltage fault wire bridging device according to claim 5, characterized in that: The fixed shaft (2) is made of non-magnetic conductive material.

7. A portable low-voltage fault wire bridging device according to claim 6, characterized in that: Two groups of reinforcing ribs (11) are arranged on the fixing frame, and reflective strips are bonded to the surfaces of the reinforcing ribs (11).

8. A portable low-voltage fault wire bridging device according to claim 7, characterized in that: It also includes a shock-absorbing belt, the inner side of which is provided with a groove, and the groove can be used to accommodate the phase line (3) and the neutral line (4).

9. A portable low-voltage fault wire bridging device according to claim 1, characterized in that: A warning flashing light is arranged on the top of the adapter box (6).

10. A portable low-voltage fault wire bridging method, characterized in that: Using a portable low-voltage fault wire bridging device as described in any one of claims 1 to 9, perform the following steps: Step 1, the distribution board at the fault end of the residential building is connected to the top of the air switch (7); Step 2, the three phases of the air switch (7) are connected in parallel to the phase line (3), the neutral line (4) is connected to the terminal block, and the other ends of the phase line (3) and the neutral line (4) are respectively connected to the distribution board of the adjacent building to obtain power; Step 3, turn on the air switch (7), and the residential building is powered on normally.

Images