A special operation platform for low-voltage bus duct welding operation in a residential area power distribution shaft
By designing an integrated operating platform, the problems of scattered equipment and insufficient safety protection in welding operations in power distribution rooms were solved, realizing integrated transportation and safety protection of equipment and reducing costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- STATE GRID HUBEI ELECTRIC POWER CO LTD
- Filing Date
- 2026-06-11
- Publication Date
- 2026-07-21
AI Technical Summary
In existing technologies, welding equipment for power distribution rooms is scattered, difficult to transport, and lacks safety protection, making it difficult to meet the requirements of confined spaces and high safety.
An operating platform was designed, which includes a frame, a gas cylinder fixing structure, a welding machine unit, a fire-fighting unit, and a powered mobile unit. It integrates gas cylinder fixing, tool storage, and fire-fighting facilities, has intelligent mobility functions, and complies with electrical safety regulations.
It achieves integrated transportation of equipment, ensures safety protection, reduces costs, and is suitable for mass promotion.
Smart Images

Figure CN122425283A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of power distribution welding technology, and in particular to a special operating platform for welding low-voltage busbar trunking in power distribution wells of residential communities. Background Technology
[0002] With the continuous expansion of urban residential community construction, pluggable busbar trunking in low-voltage power distribution systems is widely used in the power transmission process from residential building power distribution rooms to floor distribution boxes due to its advantages such as convenient installation, flexible capacity expansion, and large current carrying capacity.
[0003] However, during long-term operation, the switch plug-in parts of plug-in busbar trunking may experience loose connections due to factors such as thermal expansion and contraction, vibration, and oxidation corrosion. This can lead to increased contact resistance, localized overheating, and in severe cases, cause the busbar trunking to burn out, power outage, or even fire.
[0004] To address this issue, there are three main rectification solutions in the industry. The first is to replace the entire busbar trunking, but this is costly, with the replacement cost for a single busbar trunking being approximately 20,000 to 50,000 yuan. The second is to replace the plug-in switches, but plug-in switches have a short lifespan and are prone to connection problems again after 3 to 5 years. The third is to use welding for fixed connections, which is the lowest cost, has high connection reliability, and a long service life. Therefore, welding has become the preferred solution for power supply companies to rectify busbar trunking faults in residential areas in batches.
[0005] The applicant has discovered at least the following technical problems in the prior art: welding operations in community power distribution rooms are characterized by small space, high dispersion, and high safety requirements.
[0006] Specifically, community power distribution rooms are often located in basements or on the ground floor of buildings, with narrow passageways. Furthermore, freight elevators cannot provide complete coverage, so passenger elevators are often used to transport equipment in many situations. However, the internal dimensions of passenger elevator cars are limited, thus imposing strict restrictions on the size of the transport equipment.
[0007] Meanwhile, welding requires a wide variety of equipment, and a single welding operation requires carrying more than ten kinds of equipment and tools, such as welding machines, industrial gas cylinders, welding guns, welding wire, wrenches, insulating tools, and fire-fighting equipment.
[0008] In addition, electrical field operations must comply with electrical safety work regulations, requiring that the welding equipment casing be reliably grounded, gas cylinders be fixed, fire-fighting equipment be provided at the work site, and unprotected welding operations are strictly prohibited near live equipment.
[0009] Therefore, existing equipment can hardly meet the above requirements. Summary of the Invention
[0010] The purpose of this invention is to provide a dedicated operating platform for welding low-voltage busbar trunking in residential power distribution wells, thereby solving the technical problems of scattered welding equipment, difficult transportation, lack of safety protection, and disorganized tool storage in existing technologies. The numerous technical effects of the preferred solutions among the many technical solutions provided by this invention are detailed below.
[0011] To achieve the above objectives, the present invention provides the following technical solution:
[0012] A special operating platform for welding low-voltage busbar trunking in power distribution wells of residential communities includes a frame, gas cylinders, welding machine unit, fire-fighting unit, and power mobility unit; The vehicle frame is provided with an inclined gas cylinder fixing structure, which is used to fix the gas cylinder. The vehicle frame has two support platforms in the vertical direction, and the welding machine unit is placed on the lower support platform; The vehicle frame is equipped with a storage rack on each of the left and right sides of the gas cylinder fixing structure, and the two storage racks are used to place the fire-fighting unit. The power movement unit is connected to the bottom of the frame and is used to drive the frame to move and steer.
[0013] Preferably, the frame is formed by welding crossbeams, longitudinal beams, and vertical beams to form a frame structure. The crossbeams, longitudinal beams, and vertical beams are all hot-rolled square tubes and coated with insulating epoxy paint.
[0014] Preferably, the gas cylinder fixing structure includes an inclined support frame, a base, a protective pad, and a clamp structure. The inclined support frame is inclined and connected to the vehicle frame. The base is connected to the lower end of the inclined support frame and is perpendicular to the inclined support frame. The protective pad is laid on the upper surface of the inclined support frame and the base. The gas cylinder is placed on the protective pad. The inclined support frame and the base can support the cylinder body and the cylinder bottom, respectively. At least one clamp structure is connected to the inclined support frame, and the clamp structure can be detachably connected to the cylinder body.
[0015] Preferably, the upper support platform includes two symmetrically arranged pull-out plates, the inner sides of the two pull-out plates are stacked on top of each other, the two pull-out plates can move away from each other or move closer to each other under the action of external force, and each pull-out plate is provided with a baffle on its outer side.
[0016] Preferably, the power movement unit includes moving wheels, a power drive structure, and a steering drive structure. The four moving wheels are movably connected to the bottom of the frame and are located opposite each other at the four corners. Two moving wheels in the same row are each driven by one of the power drive structures, and the other two moving wheels in the same row are each driven by one of the steering drive structures. Both the power drive structure and the steering drive structure are connected to the bottom of the frame.
[0017] Preferably, it also includes a control unit, a power supply unit, and an auxiliary lighting lamp. The control unit and the power supply unit are both mounted on the vehicle frame. The auxiliary lighting lamp is connected to the upper surface of the upper-level support platform. The control unit is electrically connected to the power drive structure, the steering drive structure, the power supply unit, and the auxiliary lighting lamp, respectively. It also includes a remote controller, which is communicatively connected to the control unit.
[0018] Preferably, the fire-fighting unit is a fire extinguisher bottle.
[0019] Preferably, the assembly also includes a welding wire and a receiving cylinder, the receiving cylinder being vertically arranged, the bottom of the receiving cylinder being fixed to the upper surface of the lower support platform, the top of the receiving cylinder passing through the upper support platform, and the welding wire being placed in the receiving cylinder.
[0020] Preferably, the welding machine unit includes a welding machine body, a power cord, a grounding terminal, and a welding torch. The welding machine body is placed on the support platform located on the lower layer. The power cord is connected to the welding machine body. The grounding terminal and the welding torch are both connected to the welding machine body through wires.
[0021] Preferably, the vehicle frame is provided with a hook structure, and the power cord and the wire can be wrapped and hung on the hook structure.
[0022] The beneficial effects of this invention are as follows: the overall size of the operating platform is adapted to the standard elevator in the community, and it can simultaneously carry welding machines, standard gas cylinders and a complete set of tools required for welding operations. It also has triple safety protections, including circuit grounding, effective gas cylinder fixing and fire-fighting storage. Furthermore, it can achieve intelligent and flexible movement through a power-driven mobile unit. It is low in cost, durable, and suitable for mass promotion. Attached Figure Description
[0023] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0024] Figure 1 This is a rear view structural diagram of the present invention; Figure 2 This is a top view of the structure of the present invention; Figure 3 This is a detailed structural diagram of the receiving cylinder and welding wire of the present invention; Figure 4 This is a detailed structural diagram of the pull-out plate of the upper support platform of the present invention.
[0025] In the diagram: 1. Vehicle frame; 11. Gas cylinder fixing structure; 111. Angled support frame; 112. Base support; 113. Protective pad; 114. Clamp structure; 12. Load-bearing platform; 121. Pull-out panel; 122. Baffle; 13. Storage rack; 2. Gas cylinders; 3. Welding machine unit; 4. Fire protection unit; 5. Powered mobile unit; 61. Welding wire; 62. Receiving cylinder; 7. Auxiliary lighting. Detailed Implementation
[0026] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of this invention, and not all of them. Based on the embodiments of this invention, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this invention.
[0027] In the description of this invention, it should be understood that the terms "center," "side," "length," "width," "height," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and "side," etc., indicate the orientation or positional relationship based on the appendix. Figure 1 The orientations or positional relationships shown are for the convenience of describing the present invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present invention.
[0028] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.
[0029] Reference Figures 1 to 4 The present invention provides a special operating platform for welding low-voltage busbar trunking in power distribution wells of residential communities, including a frame 1, a gas cylinder 2, a welding machine unit 3, a fire-fighting unit 4, and a power-moving unit 5.
[0030] The frame 1 is preferably formed by welding crossbeams, longitudinal beams and vertical beams to form a frame structure. The crossbeams, longitudinal beams and vertical beams are preferably made of 40×40×3mm Q235 hot-rolled square tubes, which are formed by welding. After welding, they are sandblasted to remove rust and phosphated. Insulating epoxy paint is sprayed on the surface with a paint film thickness ≥50μm and an insulation resistance ≥1MΩ.
[0031] The four corners of the frame structure of the chassis 1 are rounded to avoid collisions that could damage the elevator car and the electrical room equipment.
[0032] The dimensions of the frame 1 are strictly controlled. Its length, width and total height are all smaller than the length, width and height of the passenger elevator car. In addition, extra space needs to be left for the workers to stand in order to ensure that a single person can push the frame 1 into the passenger elevator car smoothly.
[0033] A gas cylinder fixing structure 11 is inclinedly provided on the frame 1. The gas cylinder fixing structure 11 is used to fix the gas cylinder 2 so that the gas cylinder 2 can be placed stably and safely. In this embodiment, the gas cylinder 2 is preferably a 40L standard gas cylinder.
[0034] Specifically, the gas cylinder fixing structure 11 preferably includes an inclined support frame 111, a base 112, a protective pad 113, and a clamp structure 114.
[0035] The inclined support frame 111 is inclined and connected to the frame 1. The inclined support frame 111 also adopts a frame structure formed by welding hot-rolled square tubes, which has good structural strength.
[0036] The base 112 is connected to the lower end of the inclined support frame 111 and is set vertically relative to the inclined support frame 111. The base 112 can provide support and limit at the bottom to prevent the gas cylinder 2 from slipping.
[0037] The protective pad 113 is laid on the upper surface of the inclined support frame 111 and the base 112, which can play a role in cushioning and shock absorption, as well as anti-slip effect.
[0038] Gas cylinder 2 is placed on protective pad 113, and the inclined support frame 111 and the base 112 can support the body and bottom of gas cylinder 2 respectively.
[0039] At least one clamp structure 114 is connected to the inclined support frame 111, and the clamp structure 114 can be detachably connected to the body of the gas cylinder 2.
[0040] The gas cylinder fixing structure 11 can form a multi-layer fixing structure with bottom limiting, middle binding and whole-body buffer support, which restricts the displacement of gas cylinder 2 from both horizontal and vertical directions and eliminates the risk of gas cylinder 2 tipping over.
[0041] The frame 1 has two support platforms 12 in the vertical direction. The upper support platform 12 has extra space reserved for the gas cylinder fixing structure 11 and the gas cylinder 2. The lower support platform 12 can be a complete square structure.
[0042] The carrying platform 12 is preferably welded to the frame structure of the vehicle frame 1, and an anti-slip texture is formed on the surface. The carrying platform 12 is preferably provided with a certain height of edge structure around it, so as to prevent the items placed on the carrying platform 12 from falling off during transportation.
[0043] The double-layered support platform 12 is the main storage space of the frame 1. Items can be flexibly placed on the support platform 12 according to actual usage needs, ensuring proper storage of welding tools and auxiliary tools.
[0044] The double-layer load-bearing platform 12 can form an upper and lower layered layout, making full use of vertical space and avoiding exceeding the horizontal dimension limit.
[0045] In addition, a tool rack can be installed on the frame 1. The tool rack can be fixed to the side of the frame 1 with bolts. It can be installed in any position that does not obstruct the placement of other items. The tool rack is preferably stamped with multiple standard holes so that hooks of different sizes can be installed to hang commonly used tools such as pliers, hammers, and wire strippers for easy and quick access.
[0046] As an optional implementation, the frame 1 can also be equipped with a foldable push-pull handle. The push-pull handle is used by the operator to hold and move the entire operating platform. The handle is also preferably made of square tube and can be connected to the frame by a pin. When not in use, it can be folded for storage, further reducing storage space.
[0047] In fact, the frame 1 itself and / or the inclined support frame 111 can also be used as handrails to replace the push-pull handrails mentioned above. The frame 1 itself and the inclined support frame 111 have space for hand gripping, which can be used directly as handrails to drive the overall movement of the operating platform.
[0048] Furthermore, since the frame 1 needs to be able to be pushed into the passenger elevator car, the total width of the support platform 12 is limited. In order to better expand the load-bearing area, the upper support platform 12 preferably includes two symmetrically arranged pull-out plates 121. The inner sides of the two pull-out plates 121 are stacked on each other, thereby effectively saving space. The two pull-out plates 121 can move away from each other or move closer to each other under the action of external force. When they move away from each other, they can unfold an additional storage area to facilitate welding operations. When they move closer to each other, they can retract the unfolded additional area so as not to affect the frame 1 entering and exiting the passenger elevator car. In addition, each pull-out plate 121 is provided with a baffle 122 on its outer side. The baffle 122 is the aforementioned edge protection structure, which can effectively prevent items placed on the pull-out plate 121 from falling off during operation.
[0049] The welding machine unit 3 is placed on the lower support platform 12. In this embodiment, the welding machine unit 3 preferably includes a welding machine body, a power cord, a grounding terminal and a welding gun. The welding machine body is placed on the lower support platform 12, the power cord is connected to the welding machine body, and the grounding terminal and the welding gun are both connected to the welding machine body through wires.
[0050] Due to the large number and length of the wires, the wiring can become quite messy during the movement of the operating platform or welding operations. To solve this problem, it is preferable to install a hook structure on the frame 1. The power cords and wires can be wrapped and hung on the hook structure, which can effectively store various wires, avoid mess, and also help reduce safety hazards.
[0051] The vehicle frame 1 has a storage rack 13 on each of the left and right sides of the gas cylinder fixing structure 11. The two storage racks 13 are used to place the fire-fighting unit 4. In this embodiment, the fire-fighting unit 4 is a fire extinguisher bottle.
[0052] The storage rack 13 is preferably fixed to the upright of the frame 1 by welding, and the fire extinguisher bottle is fixed by a clamp structure. The fire extinguisher bottle is preferably a 4kg dry powder fire extinguisher. The clamp structure is adjusted by bolts to ensure that the fire extinguisher bottle is firm and does not fall off. The fire extinguisher bottle is stored at a suitable height from the ground so that it can be quickly retrieved by the operator in an emergency.
[0053] Fire protection unit 4 can provide effective protection and can be used directly to extinguish fires when needed.
[0054] The power movement unit 5 is connected to the bottom of the frame 1. The power movement unit 5 is used to drive the frame 1 to move and steer, so as to realize the movement of the operating platform under non-human conditions.
[0055] The power movement unit 5 preferably includes moving wheels, a power drive structure, and a steering drive structure. The four moving wheels are movably connected to the bottom of the frame and are located at the four corners. Two moving wheels in the same row are each driven by a power drive structure, and the other two moving wheels in the same row are each driven by a steering drive structure. Both the power drive structure and the steering drive structure are connected to the bottom of the frame.
[0056] The power drive structure controls the forward and backward movement of the two corresponding moving wheels, while the steering drive structure controls the steering of the two corresponding moving wheels. Together, they enable the operating platform to move flexibly in all directions.
[0057] To better facilitate the use of the power mobility unit 5, the operating platform also includes a control unit, a power supply unit, and a remote control.
[0058] The control unit and the power supply unit are both mounted on the frame 1. The control unit is connected to the power drive structure, the steering drive structure, the power supply unit, and the remote controller. The control unit can play an overall control role, and the power supply unit can supply power to the above-mentioned devices.
[0059] The remote control can achieve intelligent control of the power movement unit 5. By using the joystick on the remote control, the forward, backward and turning movements of the operating platform can be flexibly controlled.
[0060] In some application scenarios, the use of a remote control allows operators to complete relevant control operations without entering the passenger elevator car, making it more intelligent.
[0061] In addition, the operating platform preferably includes an auxiliary lighting lamp 7, which is connected to the upper surface of the upper support platform 12. The control unit is electrically connected to the auxiliary lighting lamp 7. When needed, the auxiliary lighting lamp 7 can be turned on to increase the ambient brightness of the welding operation site and ensure the smooth progress of the welding work.
[0062] As an optional implementation, it also includes a welding wire 61 and a receiving cylinder 62. The receiving cylinder 62 is vertically arranged, with its bottom fixed to the upper surface of the lower support platform 12 and its top passing through the upper support platform 12. The welding wire 61 is placed in the receiving cylinder 62.
[0063] The addition of the receiving cylinder 62 provides a dedicated space for the welding wire 61.
[0064] The operating platform features a compact, modular design, allowing the vehicle to fit into a standard domestic passenger elevator. It also enables the simultaneous transport of welding machines, gas cylinders, and welding tools, reducing handling steps and shortening equipment transfer time.
[0065] The operating platform has a complete safety protection system, which integrates effective gas cylinder fixing, grounding terminals and fire extinguisher storage space, forming a triple safety protection system that complies with the safety regulations for on-site power operations and eliminates safety hazards such as gas cylinder tipping, electric shock, and fire.
[0066] The operating platform has a simpler structure, which effectively reduces manufacturing costs and makes it suitable for bulk purchase and promotion by grassroots power supply teams.
[0067] The operating platform is not a general industrial welding cart, but a special equipment designed for the power grid / electricity construction industry. It is mainly suitable for busbar welding and maintenance operations in the basement substations of residential communities and commercial buildings, and is fundamentally different from the welding carts used in ordinary factories / construction sites.
[0068] The operating platform is used as follows: The first step is equipment loading. The main body of the welding machine is placed on the lower support platform 12, the 40L gas cylinder 2 is placed securely and locked by the clamp structure 114, various welding tools and auxiliary tools are placed on the support platform 12 in categories, and fire extinguisher bottles are placed on the storage rack 13.
[0069] The second step is transportation. The cart is manually pushed into the community elevator, or a remote control is used for intelligent driving, so that the cart enters the community elevator under power. After reaching the working floor, the cart is fixed. If the equipment does not have intelligent driving, brakes can be added to the wheels to achieve braking and fixation.
[0070] The third step is safety preparation. Connect the grounding terminal to the power distribution room grounding grid and check whether the gas cylinder valve, welding machine power cord, and welding torch connection are normal.
[0071] The fourth step is welding. Take out the welding gun and welding wire, and carry out the busbar welding operation according to the operating procedures. If you need to get relevant tools during the welding operation, you can get them directly from the support platform 12.
[0072] Fifth step: Once the work is completed, turn off the welding machine and gas source, organize the tools, reset the equipment and tools, and move the machine away from the work site by hand or with a smart drive trolley.
[0073] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.
Claims
1. A special operating platform for welding low-voltage busbar trunking in a residential community power distribution well, characterized in that, Includes a vehicle frame (1), gas cylinders (2), welding machine unit (3), fire-fighting unit (4), and power mobile unit (5); A gas cylinder fixing structure (11) is inclinedly provided on the frame (1), and the gas cylinder fixing structure (11) is used to fix the gas cylinder (2). The frame (1) has two support platforms (12) in the vertical direction, and the welding unit (3) is placed on the support platform (12) located on the lower layer; The vehicle frame (1) has a storage rack (13) on each of the left and right sides of the gas cylinder fixing structure (11), and the two storage racks (13) are used to place the fire unit (4). The power movement unit (5) is connected to the bottom of the frame (1) and is used to drive the frame (1) to move and turn.
2. The special operating platform for welding low-voltage busbar trunking in residential power distribution wells according to claim 1, characterized in that, The frame (1) is formed by welding crossbeams, longitudinal beams and vertical beams to form a frame structure. The crossbeams, longitudinal beams and vertical beams are all hot-rolled square tubes and are coated with insulating epoxy paint on the surface.
3. The special operating platform for welding low-voltage busbar trunking in residential community power distribution wells according to claim 1, characterized in that, The gas cylinder fixing structure (11) includes an inclined support frame (111), a base (112), a protective pad (113), and a clamp structure (114). The inclined support frame (111) is inclined and connected to the vehicle frame (1). The base (112) is connected to the lower end of the inclined support frame (111) and is vertically arranged relative to the inclined support frame (111). The protective pad (113) is laid on the upper surface of the inclined support frame (111) and the base (112). The gas cylinder (2) is placed on the protective pad (113). The inclined support frame (111) and the base (112) can support the body and bottom of the gas cylinder (2) respectively. At least one clamp structure (114) is connected to the inclined support frame (111). The clamp structure (114) can be detachably connected to the body of the gas cylinder (2).
4. The special operating platform for welding low-voltage busbar trunking in residential power distribution wells according to claim 1, characterized in that, The upper-level support platform (12) includes two symmetrically arranged pull-out plates (121). The inner sides of the two pull-out plates (121) are stacked on each other. The two pull-out plates (121) can move away from each other or move closer to each other under the action of external force. Each pull-out plate (121) is provided with a baffle (122) on its outer side.
5. The special operating platform for welding low-voltage busbar trunking in residential community power distribution wells according to claim 1, characterized in that, The power movement unit (5) includes a moving wheel, a power drive structure and a steering drive structure. The four moving wheels are movably connected to the bottom of the frame and are located at the four corners. Two moving wheels in the same row are each driven by one of the power drive structures, and the other two moving wheels in the same row are each driven by one of the steering drive structures. The power drive structure and the steering drive structure are both connected to the bottom of the frame.
6. The special operating platform for welding low-voltage busbar trunking in residential community power distribution wells according to claim 5, characterized in that, It also includes a control unit, a power supply unit and an auxiliary lighting lamp (7). The control unit and the power supply unit are both mounted on the frame (1). The auxiliary lighting lamp (7) is connected to the upper surface of the upper support platform (12). The control unit is electrically connected to the power drive structure, the steering drive structure, the power supply unit and the auxiliary lighting lamp (7) respectively. It also includes a remote controller, which is communicatively connected to the control unit.
7. The special operating platform for welding low-voltage busbar trunking in residential community power distribution wells according to claim 1, characterized in that, The fire-fighting unit (4) is a fire extinguisher bottle.
8. The special operating platform for welding low-voltage busbar trunking in residential power distribution wells according to claim 1, characterized in that, It also includes a welding wire (61) and a receiving cylinder (62), the receiving cylinder (62) being vertically arranged, the bottom of the receiving cylinder (62) being fixed to the upper surface of the lower support platform (12), the top of the receiving cylinder (62) passing through the upper support platform (12), and the welding wire (61) being placed in the receiving cylinder (62).
9. The special operating platform for welding low-voltage busbar trunking in residential power distribution wells according to claim 1, characterized in that, The welding machine unit (3) includes a welding machine body, a power cord, a grounding terminal and a welding gun. The welding machine body is placed on the support platform (12) located on the lower layer. The power cord is connected to the welding machine body. The grounding terminal and the welding gun are both connected to the welding machine body through wires.
10. The special operating platform for welding low-voltage busbar trunking in residential power distribution wells according to claim 9, characterized in that, The frame (1) is provided with a hook structure, and the power cord and the wire can be wrapped and hung on the hook structure.