Special carrying device for GIS (Gas Insulated Switchgear) interval

Abstract

The invention relates to a special carrying device for a GIS (Gas Insulated Switchgear) bay, which comprises four carrying trolleys mounted at two ends of the GIS bay, two carrying trolleys are respectively arranged at two ends of the GIS bay, the carrying trolleys are connected to channel steel bottom beams of the GIS bay through connecting clamps, one end of each connecting clamp is connected with the corresponding carrying trolley, and the other end of each connecting clamp is connected with the corresponding channel steel bottom beam. And the other end is connected with a hanging ring on the channel steel bottom beam. The structure and the number of the carrying devices can be adjusted at will according to site requirements, the requirements of different products are met, and good universality is achieved.

Description

Technical Field

[0001] This application relates to the field of GIS interval transportation, specifically to a dedicated GIS interval transportation device. Background Technology

[0002] Compared with traditional open-type high-voltage equipment, gas-insulated switchgear (GIS) has significant advantages and is being used more and more widely, playing an increasingly important role in power transmission and transformation systems. GIS switchgear accounts for a growing proportion of power system equipment. To improve the reliability and service life of GIS equipment, its application is gradually shifting from outdoor to indoor locations.

[0003] GIS compartments are large and heavy, and are not typically equipped with electric cranes indoors. Large cranes cannot enter the room for hoisting. During the transportation of the products to the installation site and the transfer from outdoor to indoor installation, special transport equipment is required. However, the industry currently lacks special and suitable transport equipment, which leads to a series of problems such as high labor intensity, low efficiency, and damage to the products during indoor transportation.

[0004] During the indoor transport of GIS bays, the transport equipment is required to have the ability to move in straight lines forward and backward and to turn with a small radius; during the docking and installation of GIS bays, the transport equipment is required to have the ability to move laterally.

[0005] Therefore, in order to solve the problem of indoor GIS installation, it is urgent to develop a special automated and intelligent transport device suitable for indoor GIS installation.

[0006] The transport vehicle is required to have automated walking capability, be able to carry the heavy load of GIS bays (approximately 5 tons for 110kV and approximately 12 tons for 220kV), and be able to complete the dual functions of rapid indoor positioning and lateral movement of GIS bays in one go.

[0007] Currently, the following construction methods are mainly adopted during the outdoor to indoor installation of GIS:

[0008] 1. Roller + crowbar method:

[0009] Rollers are placed under the steel base beam of the GIS (Gas-Insulated Gate Equipment) system, and pry bars are inserted into the bottom of the beam. Multiple people work together to pry the beam to gradually move or adjust its direction. The disadvantages of this method are: low efficiency, high labor intensity, and damage to the equipment itself.

[0010] 2. Manual forklift method:

[0011] First, a crane or hydraulic jack lifts the GIS (Gas Insulated Geological Components) to a certain height, then a forklift is placed under the bottom beam, and multiple people work together to push, pull, move, or adjust the direction. The disadvantages of this method are: it cannot be handled manually when the product is too heavy, the labor intensity is high, and there is a risk of tipping over during transportation.

[0012] 3. Air cushion transportation method:

[0013] First, the GIS compartment is raised to a certain height using a crane or hydraulic jack. The air cushion device is then placed under the base beam, and an air pump is connected to inflate the air cushion. Once it is confirmed to bear the weight of the GIS compartment and be in a suspended state, the GIS compartment is manually moved or repositioned. The disadvantages of this method are: the air cushion equipment requires a highly flat and uneven surface, which is difficult to guarantee on actual site conditions, limiting its application. Furthermore, the air hoses are dragged along during movement, requiring a large number of personnel to follow and pull them, resulting in poor practicality.

[0014] 4. Electric transport toy tank method:

[0015] First, use a crane or hydraulic jack to lift the GIS compartment to a certain height. Then, place the electric transport tank under the base beam and operate the remote control device of the electric transport tank to automatically move or turn the equipment. Disadvantages: The climbing ability of a single unit is weak, and it is easy to get stuck when there are embedded parts or pits in the ground; the GIS compartment is large in volume and long in length, and a single electric transport tank can only move longitudinally and turn with a large radius, but cannot move laterally in parallel, which is not conducive to the docking and installation of unit compartments.

[0016] According to national standards, the dimensional deviation of the installation height of all GIS bays in the area must not exceed 3mm, and the installation foundations are considered to be on the same plane. Therefore, when connecting the pipes between GIS bays, the bottom beam surface of all bays must be attached to or close to the installation foundation surface. Currently, most GIS positioning and transportation vehicles are located under the bottom beam of the product, making the bottom beam quite high above the ground. After moving it to the approximate installation position, the bottom beam equipment must be pulled out first, and then pry bars or manual hoists must be used for positional correction. This makes it impossible to complete the rapid movement of unit bays in one go and the precise calibration movement when docking different groups of bays, which is time-consuming, labor-intensive, and inefficient.

[0017] In the prior art, patent application CN114105042A discloses a GIS equipment handling device, which relates to the field of power grid construction handling tools. It includes a caster wheel mechanism, a drive wheel mechanism, and a beam tilt sensor. The caster wheel mechanism includes a first clamping seat, an integrated hydraulic jack, and a caster wheel assembly. The drive wheel mechanism includes a second clamping seat, an integrated through-hole hydraulic jack, a through-hole shaft, a steering operating handle, and a drive wheel assembly. The integrated hydraulic jack, the integrated through-hole hydraulic jack, and the drive wheel assembly are all remotely driven by a remote control operating device.

[0018] This patent application uses hydraulic jacks for vertical lifting and an electric motor for movement, requiring both a hydraulic pump station and a power supply system. These two systems are inconvenient to use and difficult to coordinate. Steering uses a steering handle integrated with the electric drive wheels, requiring manual operation. Due to the large size of the GIS equipment and limited visibility, operators cannot clearly see the installation target position, making precise control and position calibration difficult. Regarding the drive wheel device's structural layout, to meet the requirements of carrying large loads (approximately 5 tons for 110kV and 12 tons for 220kV) with good climbing ability, the current power motor plus reduction gears would inevitably be quite large. The small size presented in the design is difficult to achieve in reality, or the actual size would be quite large. However, since the minimum gap between GIS bottom beams is ≤200mm, the large size of this design would inevitably render it unusable in some locations.

[0019] In the prior art, patent application CN117383460A discloses a fully electrically controlled lifting and transporting platform for installing GIS equipment, relating to the field of electrical equipment transportation technology. It includes a chassis, a longitudinal assembly, and a transverse assembly. The chassis supports the GIS equipment. The longitudinal assembly includes a moving device and a lifting device connected to the moving device. The moving device has transfer wheels at its bottom. The transfer device is used to transfer the chassis, and the lifting device is used to lift the chassis. The transverse assembly includes a pallet device and a clamping device. The clamping device is mounted on the pallet device, which supports the chassis. The clamping device provides clamping force to hold the chassis. The pallet device has casters at its bottom. The platform also includes a controller with a control system for controlling the longitudinal and transverse assemblies during transport. This invention's lifting and transporting platform has lateral and longitudinal adjustment functions, enabling stable transport control and lifting of the GIS equipment.

[0020] The longitudinal assembly structure in this patent application is overly complex, bulky, and inconvenient to install and use. The support for lifting the GIS H-beam steel base beam in the longitudinal assembly lacks a locking unit to secure the base beam, resulting in a lack of safety. The transverse assembly, placed under the GIS base beam for stable lifting, does not meet the requirements of actual on-site working scenarios and installation processes. Firstly, the minimum gap between GIS base beam groups is only 200mm, and the transverse assembly's width extension under the base beam cannot exceed this dimension, otherwise interference will occur. If the extension is too small (≤200mm), it has little effect on improving stability. Secondly, when calibrating the position of the GIS bay's main pipe, all bay base beams must be attached to or close to the installation foundation surface. The installation height adjustment is typically only a few millimeters. Placing the transverse assembly under the GIS base beam, resulting in a high distance between the base beam and the installation ground, makes it impossible to calibrate the main pipe connection during installation. (Note: The last sentence about GIS bay base beams being attached to or close to the same installation foundation surface is unrelated and appears to be a separate, incomplete thought.)

[0021] In the prior art, patent application CN119370774A discloses a GIS intelligent transport device and transport method. The transport device includes a transport trolley, a control unit, and a remote control unit. The control unit is communicatively connected to the transport trolley and the remote control unit. The transport trolley includes a main assembly and a clamp. The main assembly includes a support component, a lifting component, a walking component, a steering component, a walking wheel assembly, and a base. The clamp is used to clamp the base onto a channel steel bottom beam. The support component is jacked up and down on the base. The lifting component is installed between the base and the support component to realize the up and down movement of the support component. The walking wheel assembly is installed on the support component and moves up and down with the support component. The walking component is installed on the support component and connected to the walking wheel assembly to drive the automatic movement of the walking wheel assembly. The steering component is installed on the support component and connected to the walking wheel assembly to adjust the traveling direction of the walking wheel assembly. This invention has the advantages of high transport efficiency.

[0022] This patented transport trolley is installed on the side of the bottom beam at any position on the channel steel of the GIS partition frame, and then fixed with C-type clamps and locking units. However, this patented device has several problems in practical use: First, the transport trolley uses a single-wheel design, requiring manual lifting and installation. The drive motor and reduction gears make it too heavy, hindering manual installation. Second, the four independent wheel sets are installed at arbitrary positions on the channel steel without fixed connections or defined positional relationships, making coordinated control difficult and prone to jamming during operation. Third, the power supply and power mechanism are separate, requiring on-site wiring connections, which is cumbersome. Summary of the Invention

[0023] The purpose of this application is to provide a dedicated transport device for GIS bays. The transport device is installed on both ends of the GIS bay base frame, which can effectively avoid interference from the embedded parts in the middle of the base frame and avoid obstacles in the cable trench when the equipment moves.

[0024] To achieve the above objectives, this application provides the following technical solution:

[0025] This application provides a dedicated transport device for GIS bays. The transport device includes four transport trolleys installed at both ends of the GIS bay, with two transport trolleys installed at each end of the GIS bay. The transport trolleys are connected to the channel steel bottom beam of the GIS bay through connecting clamps. One end of the connecting clamp is connected to the transport trolley, and the other end is connected to the lifting ring on the channel steel bottom beam.

[0026] The transport trolley includes a traveling trolley, a battery pack, a lifting device, and a support connection device. A turntable is installed on the top of the traveling trolley, which is fixed in the middle of the trolley body by a plane bearing and can rotate freely at any angle of 360 degrees. The battery pack uses lithium batteries with a DC 48V power output. The battery pack has a power display, a charging interface, and a power plug interface on the side. The battery pack is connected to the rear end of the traveling trolley by a quick-connect pin and is used to provide power for the traveling trolley and the lifting device when they are working. The lifting device is installed on the turntable, and a support connection device is set above the lifting device. The support connection device is connected to a connecting clamp.

[0027] The lifting device includes a support base, limit sensors, positioning and fixing bolts, a screw jack, a servo integrated machine, and a lifting control wireless receiver.

[0028] The support base is fixed to the rotary table using positioning and fixing bolts 2033.

[0029] The screw jack is mounted on the upper surface of the support base and contains a worm gear reducer mechanism. Driven by a servo motor, it achieves the vertical movement of the central screw. Limit sensors are installed above and below the center hole of the support base, and sensor contact plates are installed at the bottom of the screw jack's lead screw for limit control of the lifting stroke, preventing it from exceeding the working range. The servo motor is mounted on the side of the screw jack and integrates a 750W servo motor and a 90-degree angle reducer. A wireless receiver for lifting control is installed on the upper side of the servo motor, allowing direct control of the servo motor's movement via remote control. The support connection device has an internal V-shaped structure and is bolted to the flange at the top of the screw jack's lead screw. The upper panel uses a hinge structure; it is opened first, and after the connecting rod is inserted into its V-groove, the cover is closed, and then the cover is locked with the handle.

[0030] The connecting fixture includes a left bracket, a right bracket, a shaft pin, an upper connecting rod, a middle connecting rod, a lower connecting rod, a shaft bar, and a fixing ring. The left and right brackets are symmetrically located on both sides. The upper, middle, and lower connecting rods pass through the mounting holes of the left and right brackets and are spliced ​​into an overall frame structure.

[0031] All parts of the left and right brackets are identical, and the components are installed symmetrically in a central mirror image. The left and right brackets include a large connecting plate, a vertical connecting plate, a small connecting plate, a first locking block, a second locking block, a third locking block, a fourth locking block, a bushing, a fixing pin, and a buckle.

[0032] The large connecting plate, vertical connecting plate, and small connecting plate are connected as one piece by bolts. One end of the first, second, third, and fourth locking blocks is fixed to the large connecting plate, vertical connecting plate, and small connecting plate respectively by fixing pins, and the other end can rotate around the fixing pins. The bushing passes through the holes in the vertical connecting plate and small connecting plate and is installed in the holes with a transition fit. One end of the buckle is fixed to the large connecting plate, vertical connecting plate, and small connecting plate respectively by fixing pins, and the other end can rotate around the fixing pins. The buckle and the first, second, third, and fourth locking blocks are installed symmetrically on the front and back sides of the large connecting plate, vertical connecting plate, and small connecting plate.

[0033] Compared with the prior art, the beneficial effects of the present invention are:

[0034] 1) It has automated transportation capabilities, which can significantly reduce the labor intensity of personnel handling GIS intervals;

[0035] 2) It is easy to install and disassemble, and has the capacity to bear the heavy load of GIS bays (approximately 5 tons for 110kV and approximately 12 tons for 220kV);

[0036] 3) The transport trolley of the transport device is installed on both ends of the GIS bay base frame, which can effectively avoid interference from the embedded parts in the middle of the base frame and avoid cable trench obstacles when the equipment moves;

[0037] 5) It can achieve multiple degrees of freedom of movement, such as longitudinal forward and backward straight movement, lateral left and right movement, and vertical lifting, and can complete the dual functions of rapid GIS interval transport and precise lateral movement of GIS interval docking in one go.

[0038] 6) The structure and quantity of the transport device can be adjusted arbitrarily according to the needs of the site to adapt to the needs of different products and have good versatility. Attached Figure Description

[0039] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments of this application will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0040] Figure 1 This is a schematic diagram of the overall usage state structure of an embodiment of this application;

[0041] Figure 2 This is a schematic diagram of the structure of the transport device according to an embodiment of this application;

[0042] Figure 3 This is a schematic diagram of the lifting device according to an embodiment of the application;

[0043] Figure 4 This is a schematic diagram of the connecting clamp structure according to an embodiment of this application;

[0044] Figure 5 This is a schematic diagram of the left and right support structures according to an embodiment of this application;

[0045] Figure 6 This is a schematic diagram of the overall structure of an embodiment of this application. Detailed Implementation

[0046] The technical solutions of the embodiments of this application will now be described with reference to the accompanying drawings. It should be noted that similar reference numerals and letters in the following drawings indicate similar items; therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0047] The terms “comprising,” “including,” or any other variations thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase “comprising one…” does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0048] This application provides a dedicated transport device for GIS intervals, such as... Figure 1 As shown, GIS bay 1 is the switchgear to be transported, the channel steel bottom beam 101 is a component of GIS bay 1, used for the installation of other components of GIS bay, and the lifting ring 102 is installed on the side of the channel steel bottom beam 101 for the overall lifting of GIS bay during loading and unloading.

[0049] The transport device 2 is installed on both ends of GIS bay 1, with a total of 4 units. It is the power transport unit of GIS bay 1. Each device has the function of independent operation and the function of 4 units operating in coordination at the same time. The transport device 2 can perform lifting, forward and backward straight movement, small radius turning movement, and lateral movement.

[0050] The connecting clamp 3 is installed on the lifting ring 102. It is made of aviation aluminum material, has a lightweight structure and high strength, and is used for the transition connection between the transport device 2 and the channel steel bottom beam 101.

[0051] Remote control device 4 is used for remote control of the movement of the transport device 2, including the movement, lifting, and turning of the transport device 2, as well as movement speed adjustment, emergency stop, and alarm display. The movement and turning of the transport device 2 are controlled by a crank handle, and the lifting is controlled by a lifting button. All four devices can be controlled simultaneously or individually. The devices use lithium batteries, which have a long working time. The remote control uses radio frequency wireless communication, which has short delay and good signal strength.

[0052] Figure 2 The diagram shows the structure of the transport device, which mainly consists of a traveling trolley 201, a battery pack 202, a lifting device 203, and a support and connection device.

[0053] The 201 mobile trolley has a steel outer shell and is internally composed of a drive motor, transmission gear set, wireless receiver, driver, rollers, etc., with a single unit carrying capacity of ≥3 tons.

[0054] The 2011 turntable is installed on the top of the vehicle body and is fixed in the middle of the vehicle body using a plane bearing, allowing it to rotate freely at any angle of 360 degrees.

[0055] The battery pack 202 uses a lithium battery with a DC 48V power output. It has a power display, charging interface, and power plug interface on the side. It is connected to the rear end of the traveling trolley 201 using a quick-connect pin method. It is an independent module that can be quickly installed and disassembled with the traveling trolley. When in use, it moves with the traveling trolley 201 and provides power for the traveling trolley 201 and the lifting device 203 when they are working.

[0056] The structure of the lifting device 203 is as follows: Figure 3 As shown, it consists of a support base 2031, a limit sensor 2032, a positioning and fixing bolt 2033, a screw jack 2034, a servo all-in-one machine 2035, and a lifting control wireless receiver 2036.

[0057] The support base 2031 is installed on the rotary table 2011. The overall frame is made of aviation aluminum, which is high in strength and light in weight. It is fixed to the rotary table 2011 with positioning and fixing bolts 2033.

[0058] The screw jack 2034 is installed on the upper surface of the support base 2031. It has a worm gear reduction mechanism inside and is driven by the servo integrated machine 2035 to realize the vertical lifting of the middle screw. A limit sensor 2032 is installed at the upper and lower parts of the center hole of the support base 2031. A sensor contact plate is installed at the bottom of the screw of the screw jack 2034 for limit control of the lifting stroke to prevent it from exceeding the working stroke range.

[0059] The servo integrated unit 2035 is installed on the side of the screw jack 2034. It integrates a 750W servo motor and a 90-degree angle reducer. The lifting control wireless receiver 2036 is installed on the top of the servo integrated unit. The servo motor can be directly controlled by a remote control.

[0060] The support connection device 204 has an internal V-shaped structure and is made of aviation aluminum. It is fixed to the flange at the top of the screw of the screw jack 2034 by bolts. Its upper panel adopts a hinge structure. When working, it is opened first, and after the connecting rod is put into its V-shaped groove, it is covered and then the cover is locked with the handle.

[0061] Connecting clamps such as Figure 4 As shown, it mainly consists of a left bracket 301, a right bracket 302, a shaft pin 303, an upper connecting rod 304, a middle connecting rod 305, a lower connecting rod 306, a shaft 307, and a fixing ring 308.

[0062] Except for the 303 axle pin, which is made of stainless steel, all the rest are made of aerospace aluminum, which is lightweight and has high strength.

[0063] The left bracket 301 and the right bracket 302 are symmetrically located on both sides. The upper connecting rod 304, the middle connecting rod 305, and the lower connecting rod 306 pass through the mounting holes of the left bracket 301 and the right bracket 302 and are spliced ​​into an overall frame structure.

[0064] The structures of the left bracket 301 and the right bracket 302 are as follows: Figure 5 As shown, it mainly consists of a large connecting plate 3011, a vertical connecting plate 3012, a small connecting plate 3013, a first locking block 3014, a second locking block 3015, a third locking block 3016, a fourth locking block 3017, a bushing 3018, a fixing pin 3019, and a buckle 3020.

[0065] The large connecting plate 3011, the vertical connecting plate 3012, and the small connecting plate 3013 are connected as one piece by bolts. One end of the first locking block 3014, the second locking block 3015, the third locking block 3016, and the fourth locking block 3017 are respectively fixed to the large connecting plate 3011, the vertical connecting plate 3012, and the small connecting plate 3013 by fixing pins 3019, and the other end can rotate around the fixing pins 3019. The bushing 3018 passes through the holes of the vertical connecting plate 3012 and the small connecting plate 3013. The buckle 3020 is installed in the hole with a transition fit; one end of the buckle 3020 is fixed to the large connecting plate 3011, the vertical connecting plate 3012, and the small connecting plate 3013 respectively by the fixing pin 3019, and the other end can rotate around the fixing pin 3019; the buckle 3020 and the first buckle block 3014, the second buckle block 3015, the third buckle block 3016, and the fourth buckle block 3017 are installed symmetrically on the front and back of the large connecting plate 3011, the vertical connecting plate 3012, and the small connecting plate 3013, respectively;

[0066] All parts of the left bracket 301 and right bracket 302 are identical, and the components are installed in a central mirror symmetrical manner.

[0067] Equipment working principle:

[0068] Firstly, as Figure 5 As shown, first assemble the left bracket 301 and right bracket 302 components (assemble them before first use, and there is no need to disassemble and assemble them again afterward) to make them a single whole component.

[0069] like Figure 6 As shown, first align the hole of the bushing 3018 on the left bracket 301 with the hole of the lifting ring 102, then pass the shaft 307 through the hole of the lifting ring 102 and the hole of the bushing 3018, and fix it with the retaining ring 308; pass the left ends of the upper connecting rod 304, the middle connecting rod 305, and the lower connecting rod 306 through the corresponding holes of the left bracket 301 in sequence; align the hole of the right bracket 302 with the axis of the right end of the connecting rod 304, the middle connecting rod 305, and the lower connecting rod 306, and install them in sequence; after all the connecting rods are installed in the bracket, rotate the first locking block 3014, the second locking block 3015, the third locking block 3016, and the fourth locking block 3017 respectively. At approximately 90 degrees, the locking blocks are inserted into the slots of the upper connecting rod 304, middle connecting rod 305, and lower connecting rod 306. Then, the shaft pin 303 is passed through the holes of the first locking block 3014, the second locking block 3015, the third locking block 3016, the fourth locking block 3017, the large connecting plate 3011, the vertical connecting plate 3012, and the small connecting plate 3013, so that the left bracket 301 and the right bracket 302 are tightly connected to the upper connecting rod 304, the middle connecting rod 305, and the lower connecting rod 306. Then, the buckle 3020 is rotated at a certain angle and inserted into the slot on the end face of the shaft pin 303 to limit and fix the shaft pin 303. After installation, the connecting clamp 3 forms a frame-type integrated fixed structure; the connecting clamp 3 is installed at both ends of the GIS base frame.

[0070] Operate the remote control 4, first select the single-action mode, and move vehicles 1#, 2#, 3#, and 4# of the transport device 2 to the lower part of the upper connecting rod 304 respectively. Adjust the position of the transport device 2 so that the upper connecting rod 304 enters the V-groove of the support connecting device 204 of the transport device 2. After adjusting it into place, close the cover plate and connect and fix the connecting clamp 3 to the transport device 2.

[0071] After all vehicles #1, #2, #3, and #4 are installed, operate remote control 4, select the linkage mode, first select lifting control, and use lifting device 203 to lift the four corners of the GIS partition base frame simultaneously; after lifting to a certain height, operate the movement and steering control mode to control the trolley to move and turn.

[0072] When the GIS bay is moved to the installation position, and the two sets of GIS bays are connected, one set of GIS bays needs to move laterally. At this time, stop the forward and backward movement operation first, operate the remote controller 4 to turn the four trolleys 90 degrees synchronously, and then control the forward and backward movement. If a trolley does not turn 90 degrees or other angles synchronously due to uneven ground or other reasons, select the single-action mode and correct the angle by controlling the trolley individually.

[0073] After the transport device 2 transports the GIS interval to the designated location, the remote controller 4 is operated and the lifting device 203 descends synchronously to place the GIS interval in the installation position. The lifting device 203 continues to descend until a certain height gap is reached. Then, the remote controller 3 is operated to move the transport devices 1#, 2#, 3# and 4# vehicles out respectively.

[0074] After the equipment is transported to its destination, disconnect the connecting clamps 3 in reverse order, and repeat the above operation steps at another GIS interval as needed on site.

[0075] The transport device 2 is equipped with a corresponding charging device according to the number of traveling trolleys. When the power is low, a warning will be issued and charging will be initiated.

[0076] The transport device 2 is equipped with a level sensor. When the ground tilt angle is too large, it will issue an early warning and can select the single-action mode to adjust the transport trolley that is too low to make correction.

[0077] The drive wheel of the carrier device 2 has a self-locking structure. It is locked when not powered on and will not slide automatically due to the slope of the ground.

[0078] The transport device 2 has a modular splicing structure. The connecting clamp 3 and the lifting device 203 can be quickly disassembled. The number of transport devices can be adjusted according to the site requirements. In addition to transporting GIS bay units, the disassembled traveling trolley 201 can also be adjusted to transport items according to the site requirements, including but not limited to the transportation of switch cabinets and transformers in substations. It has good versatility.

[0079] The above description is merely an embodiment of this application and is not intended to limit the scope of protection of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application.

Claims

1. A dedicated transport device for GIS intervals, characterized in that, The transport device includes four transport trolleys installed at both ends of the GIS compartment, with two transport trolleys installed at each end of the GIS compartment. The transport trolleys are connected to the channel steel bottom beam of the GIS compartment through connecting clamps. One end of the connecting clamp is connected to the transport trolley, and the other end is connected to the lifting ring on the channel steel bottom beam.

2. The GIS-specific transport device according to claim 1, characterized in that, The transport trolley includes a traveling trolley, a battery pack, a lifting device, and a support connection device. A turntable is installed on the top of the traveling trolley, which is fixed in the middle of the trolley body by a plane bearing and can rotate freely at any angle of 360 degrees. The battery pack uses lithium batteries with a DC 48V power output. The battery pack has a power display, a charging interface, and a power plug interface on the side. The battery pack is connected to the rear end of the traveling trolley by a quick-connect pin and is used to provide power for the traveling trolley and the lifting device when they are working. The lifting device is installed on the turntable, and a support connection device is set above the lifting device. The support connection device is connected to a connecting clamp.

3. The GIS-specific transport device according to claim 2, characterized in that, The lifting device includes a support base, limit sensors, positioning and fixing bolts, a screw jack, a servo integrated machine, and a lifting control wireless receiver. The support base is fixed to the rotary table using positioning and fixing bolts 2033. The screw jack is mounted on the upper surface of the support base and contains a worm gear reducer mechanism. Driven by a servo motor, it achieves the vertical movement of the central screw. Limit sensors are installed above and below the center hole of the support base, and sensor contact plates are installed at the bottom of the screw jack's lead screw for limit control of the lifting stroke, preventing it from exceeding the working range. The servo motor is mounted on the side of the screw jack and integrates a 750W servo motor and a 90-degree angle reducer. A wireless receiver for lifting control is installed on the upper side of the servo motor, allowing direct control of the servo motor's movement via remote control. The support connection device has an internal V-shaped structure and is bolted to the flange at the top of the screw jack's lead screw. The upper panel uses a hinge structure; it is opened first, and after the connecting rod is inserted into its V-groove, the cover is closed, and then the cover is locked with the handle.

4. A dedicated GIS interval transport device according to claim 3, characterized in that, The connecting fixture includes a left bracket, a right bracket, a shaft pin, an upper connecting rod, a middle connecting rod, a lower connecting rod, a shaft bar, and a fixing ring. The left and right brackets are symmetrically located on both sides. The upper, middle, and lower connecting rods pass through the mounting holes of the left and right brackets and are spliced ​​into an overall frame structure.

5. A dedicated GIS interval transport device according to claim 4, characterized in that, All parts of the left and right brackets are identical, and the components are installed symmetrically in a central mirror image. The left and right brackets include a large connecting plate, a vertical connecting plate, a small connecting plate, a first locking block, a second locking block, a third locking block, a fourth locking block, a bushing, a fixing pin, and a buckle. The large connecting plate, vertical connecting plate, and small connecting plate are connected as one piece by bolts. One end of the first, second, third, and fourth locking blocks is fixed to the large connecting plate, vertical connecting plate, and small connecting plate respectively by fixing pins, and the other end can rotate around the fixing pins. The bushing passes through the holes in the vertical connecting plate and small connecting plate and is installed in the holes with a transition fit. One end of the buckle is fixed to the large connecting plate, vertical connecting plate, and small connecting plate respectively by fixing pins, and the other end can rotate around the fixing pins. The buckle and the first, second, third, and fourth locking blocks are installed symmetrically on the front and back sides of the large connecting plate, vertical connecting plate, and small connecting plate.

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