GIS device bus sleeve splicing mobile trolley

Abstract

This utility model discloses a mobile trolley for splicing busbar sleeves of GIS equipment, including a support platform, comprising a first support platform and a second support platform. The second support platform has first support platforms at both ends, and storage holes on both sides of the second support platform. Support rods are provided on the first support platforms corresponding to the storage holes, and the support rods are inserted into the storage holes. Both the first and second support platforms have transverse sliding grooves, and the bottom surface of the sliding grooves has multiple diameter adjustment holes symmetrically arranged around the longitudinal center line of the support platform. Fasteners are installed on the second support platform and are loosely connected to the support rods. Pipe clamps are installed in each sliding groove, and the pipe clamps are threadedly connected to the diameter adjustment holes by first bolts. Support legs are installed on the bottom of both the first and second support platforms. This utility model has the advantages of reducing the time occupied by hoisting equipment during pipe splicing and improving splicing efficiency.

Description

Technical Field

[0001] This utility model pertains to auxiliary equipment for pipe splicing, specifically relating to a mobile trolley for splicing busbar sleeves in GIS equipment. Background Technology

[0002] The busbar bushing of GIS equipment serves as a connection component between GIS equipment and external circuits, and has insulation and sealing functions.

[0003] During their work, the inventors discovered that GIS equipment busbar bushings consist of numerous short sections. Existing installation methods involve sequentially lifting and assembling multiple short sections using overhead cranes or truck cranes. During assembly, the overhead cranes or truck cranes must maintain the short sections suspended until the assembly is complete. Clearly, the overhead cranes or truck cranes are occupied during this assembly period, reducing their utilization rate, lengthening the lifting time, and increasing costs. Therefore, to address the shortcomings of existing technologies, a mobile trolley for GIS equipment busbar bushing assembly has been developed. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by providing a mobile trolley for splicing busbar bushings in GIS equipment.

[0005] In order to achieve the above-mentioned objectives of this utility model, the following technical solution is adopted: A mobile trolley for splicing busbar bushings of GIS equipment includes a support platform, comprising a first support platform and a second support platform. The second support platform has first support platforms at both ends, and storage holes on both sides of the second support platform. The first support platform has support rods corresponding to the storage holes, and the support rods are inserted into the storage holes. Both the first and second support platforms have transverse sliding grooves, and the bottom surface of the sliding grooves has multiple aperture adjustment holes symmetrically arranged around the longitudinal centerline of the support platform. Fasteners are installed on the second support platform and are loosely connected to the support rods. Pipe clamps are installed in each sliding groove, and the pipe clamps are threadedly connected to the aperture adjustment holes via first bolts. Support legs are installed at the bottom of both the first and second support platforms.

[0006] As a further improvement to the technical solution, the pipe clamp also includes two clamping bodies, which are symmetrically installed in the slide groove with the longitudinal center line; the clamping body includes a baffle and a base plate, the baffle is vertically installed on the base plate, and the base plate is installed in the slide groove and threadedly connected to the diameter adjustment hole by a first bolt.

[0007] As a further improvement to the technical solution, the GIS equipment busbar bushing splicing mobile trolley of this utility model also includes a first reinforcing rib, and at least one first reinforcing rib is installed between the baffle and the base plate.

[0008] As a further improvement to the technical solution, the fastener includes a base plate; a second support plate, one end of which is connected to the base plate and the other end of which is connected to the first support plate; the first support plate is provided with a through hole, and nuts are provided on both sides of the through hole; a second bolt, which passes through the first support plate and the two nuts and extends toward the top plate, the top plate and the first support plate being arranged in parallel and spaced apart; and a third reinforcing rib, the top plate being provided with at least one third reinforcing rib.

[0009] As a further improvement to the technical solution, the GIS equipment busbar bushing splicing mobile trolley of this utility model also includes a second reinforcing rib and a control lever. The second reinforcing rib is installed between the base plate and the second support plate, and between the second support plate and the first support plate. The control lever is installed on the second bolt.

[0010] As a further improvement to the technical solution, the present invention provides a GIS equipment busbar sleeve splicing mobile trolley, which also includes a hole spacing marking area block. The first support platform and the second support platform are provided with hole spacing marking area blocks near the slide groove. The hole spacing marking area block is provided with hole spacing marking lines for two symmetrical hole diameter adjustment holes.

[0011] As a further improvement to the technical solution, the GIS equipment busbar bushing splicing mobile trolley of this utility model also includes driving wheels, with driving wheels installed at the bottom of each support leg.

[0012] As a further improvement to the technical solution, the driving wheel is a swivel wheel with brake pads.

[0013] As a further improvement to the technical solution, the support leg is a telescopic support leg.

[0014] As a further improvement to the technical solution, the telescopic support leg includes a second leg with a plurality of first leg adjustment holes spaced apart along the height direction; the first leg has a plurality of second leg adjustment holes corresponding to the plurality of first leg adjustment holes along the height direction, and when the first leg is inserted into the second leg, at least one second leg adjustment hole corresponds to the first leg adjustment hole; and a pin passes through two corresponding first leg adjustment holes and second leg adjustment holes.

[0015] The present invention represents a significant advancement over the prior art: This invention features a design that supports the alignment and splicing of two GIS equipment busbar bushings. The GIS equipment busbar bushings to be assembled are placed on a support platform, and clamps installed in the sliding grooves of the support platform hold the bushings in place, preventing lateral movement. During splicing, the support platform is moved so that the GIS equipment busbar bushings on the two platforms are aligned and brought close together, allowing for splicing. This design overcomes the limitations of existing methods that use overhead cranes or truck cranes to suspend and splice GIS equipment busbar bushings, reducing the time and operating costs associated with these lifting equipment. Attached Figure Description

[0016] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0017] Figure 1 This is a schematic diagram of the structure of a GIS equipment busbar bushing splicing mobile trolley according to the present invention; Figure 2 This is a schematic diagram of the installation structure between the first support platform, the second support platform, the fasteners, and the pipe clamps in this utility model. Figure 3 This is a schematic diagram of a structure in which the first support platform and the second support platform are tightened or loosened by fasteners in this utility model. Figure 4 This is a schematic diagram of a sliding groove in which the pipe clamp is installed on the first support platform in this utility model. Figure 5 This is a schematic diagram of a fastener structure in this utility model; Figure 6 This is a schematic diagram of a structure in which the first support plate of this utility model has a through hole; Figure 7 This is a schematic diagram of one structure of the support leg in this utility model; The names and serial numbers of each component in the diagram are as follows: 1-Traveling wheel, 2-Support leg, 21-First support leg, 22-Pin, 23-First support leg adjustment hole, 24-Second support leg, 25-Second support leg adjustment hole, 3-Support platform, 31-First support platform, 32-Support rod, 33-Second support platform, 331-Storage hole, 34-Slide groove, 35-Diameter adjustment hole, 4-Longitudinal centerline, 5-Pipe clamp, 51-Baffle, 52-First bolt, 53-Base plate, 54-First reinforcing rib, 6-Hole spacing marking area block, 7-Fastener, 71-Base plate, 72-Second reinforcing rib, 73-First support plate, 731-Through hole, 74-Second bolt, 75-Control lever, 76-Nut, 77-Second support plate, 78-Top plate, 79-Third reinforcing rib. Detailed Implementation

[0018] To enable those skilled in the art to better understand the technical solutions in this application, the technical solutions of this utility model will be clearly and completely described below in conjunction with the accompanying drawings and embodiments. Obviously, the described embodiments are only a part of the embodiments in this application. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of this application.

[0019] Example 1: like Figure 1-7 As shown, a GIS equipment busbar bushing splicing mobile trolley includes a support platform 3, fasteners 7, pipe clamps 5, and support legs 2. The support platform 3 includes a first support platform 31 and a second support platform 32. The second support platform 32 has first support platforms 31 at both ends and storage holes 331 on both sides. The first support platform 31 has support rods 32 corresponding to the storage holes 331, which are inserted into the storage holes 331. Both the first and second support platforms 31 and 32 have transverse sliding grooves 34. The bottom surface of the sliding grooves 34 has multiple diameter adjustment holes 35 symmetrically arranged around the longitudinal center line 4 of the support platform 3. Fasteners 7 are installed on the second support platform 32 and are loosely or tightly connected to the support rods 32. Each sliding groove 35 is equipped with a pipe clamp 5, which is threadedly connected to the diameter adjustment hole 35 by a first bolt 52. Support legs 2 are installed at the bottom of both the first and second support platforms 31 and 32.

[0020] Fastener 7 has the function of loosening and tightening the support rod. When the fastener loosens the support rod, the support rod can move. When the fastener tightens the support rod, the support rod is fixed and cannot move.

[0021] When the pipe clamp 5 is placed in the slide groove 34, the slide groove 34 restricts the horizontal swing and guides the pipe clamp to slide.

[0022] Understandably, two symmetrical orifice adjustment holes correspond to the diameter of a GIS equipment busbar bushing. Therefore, the interval between two symmetrical orifice adjustment holes at different locations corresponds to GIS equipment busbar bushings of different diameters.

[0023] like Figure 1-4 As shown, the first support platform 31 and the second support platform 32 may be provided with an appropriate number of sliding grooves 34 as needed. For example, the first support platform 31 is provided with one sliding groove 34, and the second support platform 32 is provided with two parallel sliding grooves 34 spaced apart.

[0024] To facilitate the movement of the support platform, each support leg 2 is equipped with a travel wheel 1 at its bottom. The travel wheel 1 is a caster wheel with brake pads. Caster wheels with brake pads are commonly used auxiliary rolling tools. When it is necessary to restrict the rolling of the caster wheel, the brake pads are pressed down, and the brake pads will stop the caster wheel from rolling. When it is necessary for the caster wheel to roll, the brake pads in the pressed-down state are lifted upwards to reset, and the brake pads will release the restriction on the caster wheel's rolling.

[0025] To adjust the height of the support platform above the support surface (such as the ground), support leg 2 can be a telescopic support leg. To raise the support platform, extend the telescopic support leg. To lower the support platform, retract the telescopic support leg.

[0026] This embodiment further provides a structure for a telescopic support leg. For example... Figure 1 , 7 As shown, the telescopic support leg includes a second leg 24, a first leg 21, and a pin 22. The second leg 24 has a plurality of first leg adjustment holes 23 spaced apart along the height direction; the first leg 21 has a plurality of second leg adjustment holes 25 corresponding to the plurality of first leg adjustment holes 23 along the height direction. When the first leg 21 is inserted into the second leg 24, at least one second leg adjustment hole 25 corresponds to the first leg adjustment hole 23; the pin 22 passes through two corresponding first leg adjustment holes 23 and second leg adjustment holes 25.

[0027] One installation method for the second support leg 24 and the first support leg 21: The second support leg 24 is installed at the bottom of the support platform. One end of the first support leg 21, which has a second support leg adjustment hole 25, is inserted into the second support leg 24, and the other end is connected to a caster wheel with a brake pad.

[0028] The second leg 24 is provided with multiple first leg adjustment holes 23, and the first leg 21 is also provided with multiple second leg adjustment holes 25, which facilitates the adjustment of the support legs to various heights. Understandably, the support platform can also be adjusted to different heights.

[0029] like Figure 1 ,7 As shown, when the first leg 21 is inserted into the second leg 24, the second leg adjustment hole 25 at the top of the first leg 21 is aligned with the first leg adjustment hole 23 at the bottom of the second leg 24. A pin is then inserted, passing through both the first leg adjustment hole 23 and the second leg adjustment hole 25, thus restricting the movement of the second leg 24 and the first leg 21. At this time, the splicing length between the second leg 24 and the first leg 21 is at its maximum. When the second leg adjustment hole 25 at the top of the first leg 21 is aligned with the first leg adjustment hole 23 at the top of the second leg 24, a pin is inserted, passing through the first leg adjustment hole 23 at the top of the second leg 24 and then into the second leg adjustment hole 25 at the top of the first leg 21. At this time, the splicing length between the second leg 24 and the first leg 21 can be considered the minimum length.

[0030] Understandably, by aligning the second leg adjustment hole 25 on the first leg 21 with the first leg adjustment hole 23 at different height positions on the second leg 24, different support leg heights can be adjusted.

[0031] Both the support legs 2 on the first support platform 31 and the second support platform 32 are equipped with casters with brake pads, allowing the first support platform 31 and the second support platform 32 to move horizontally. This facilitates the splicing of GIS equipment busbar bushings placed on the support platforms.

[0032] Understandably, when the length of the support platform needs to be extended, the fastener 7 is loosened from the support rod 32, i.e., the support rod is released from its fixed position. The support rod can then extend outward relative to the receiving hole 331, thereby increasing the total length of the support platform and extending it. When the support platform is extended to the required length, the fastener is then used to fix the support rod. The support rod is then fixed to the second support platform by the fastener, and the spacing between the first and second support platforms is fixed.

[0033] When it is necessary to shorten the length of the support platform, the fastener 7 is loosened from the support rod 32, that is, the second bolt 74 is released from fixing the support rod. The support rod can move relative to the storage hole and can extend inward relative to the storage hole 331, thereby reducing the total length of the support platform and shortening the support platform.

[0034] In some embodiments, a structure for the pipe clamp is provided. For example... Figure 1-4 As shown, the pipe clamp 5 also includes two clamping bodies, which are symmetrically installed in the slide groove 34 about the longitudinal center line 4. The clamping body includes a baffle 51 and a base plate 53. The baffle 51 is vertically installed on the base plate 53, and the base plate 53 is installed in the slide groove 34 and threadedly connected to the aperture adjustment hole 35 by the first bolt 52.

[0035] like Figure 1-4As shown, the substrate 53 is placed in the slide groove 34, and the baffle 51 is vertically installed on the substrate 53. The substrate 53 and the aperture adjustment hole 35 on the bottom surface of the slide groove 34 are connected by a first bolt 52, that is, the first bolt 52 passes through the substrate 53 and is threadedly connected to the aperture adjustment hole 35.

[0036] In use, the two clamping tubes hold the GIS equipment busbar bushing. Specifically, the two baffles 51 are aligned and fitted against the GIS equipment busbar bushing. Then, the first bolt 52 is passed through the base plate 53 and screwed into the diameter adjustment hole 35. Tightening the first bolt 52 presses the base plate and fixes it in the sliding groove 34, thus fixing the base plate to support the baffles 51. The two symmetrically fixed baffles 51 can restrict the GIS equipment busbar bushing and limit its lateral movement.

[0037] Understandably, based on the diameter of the GIS equipment busbar bushing, two symmetrical aperture adjustment holes 35 matching the diameter are selected within the groove 34.

[0038] In some embodiments, a first reinforcing rib 54 is added to enhance the load-bearing capacity of the baffle. At least one first reinforcing rib 54 is installed between the baffle 51 and the base plate 53.

[0039] The first reinforcing rib 54 can enhance the load-bearing capacity of the baffle 51, so that the baffle 51 will not easily deform when it is impacted by the GIS equipment busbar bushing.

[0040] The number of primary reinforcing ribs can be one, two, or three. Multiple primary reinforcing ribs can further improve the load-bearing capacity of the baffle.

[0041] In some embodiments, a structure for the fastener is provided. For example... Figure 3 , 5 As shown, the fastener 7 includes a base plate 71, a second support plate 77, a second bolt 74, and a third reinforcing rib 79. One end of the second support plate 77 is connected to the base plate 71, and the other end is connected to the first support plate 73. The first support plate 73 has a through hole 731, and nuts 76 are provided on both sides of the through hole 731. The second bolt 74 passes through the first support plate 73 and the two nuts 76 and extends towards the top plate 78. The top plate 78 and the first support plate 73 are arranged parallel to each other at intervals. The top plate 78 has at least one third reinforcing rib 79, and the top plate 78 can be installed on the second support platform 33 through the third reinforcing rib 79.

[0042] To facilitate tightening of the second bolt 74, such as Figure 5 As shown, an operating lever 75 is added and installed on the second bolt 74. When the operator holds the operating lever 75 and rotates it, the second bolt 74 will rotate, allowing the second bolt 74 to be screwed in and out of the nut 76.

[0043] The expansion and contraction method of the second bolt: When the second bolt is turned clockwise, the second bolt 74 is screwed into the two nuts 76, which extend towards the top plate 78, thus supporting the support rod 32 and tightening the support rod, thereby fixing the support rod.

[0044] When the second bolt 74 is turned counterclockwise, the second bolt 74 unscrews the nut 76 and moves away from the top plate 78, contacting and tightening the support rod 32. The support rod 32 can move relative to the receiving hole 331.

[0045] At the opening of the mounting hole 331 on the top plate 78, the third reinforcing rib 79 provides support and reinforcement for the top plate 78. The third reinforcing rib can support the top plate 78 and the second bolt 74 to clamp and fix the support rod.

[0046] The number of third reinforcing ribs 79 can be 1, 2, or 3. The third reinforcing ribs 79 enhance the load-bearing capacity of the top plate 78.

[0047] The first support plate 73 has a through hole 731, and nuts 76 are provided on both sides of the through hole 731. The two nuts help to prevent the second bolt from loosening.

[0048] Specifically, how fasteners work: Tightening operation: The operator holds the operating lever 75 and rotates it clockwise. The operating lever 75 drives the second bolt 74 to rotate clockwise, screwing the second bolt 74 into the two nuts 76, extending it towards the top plate 78 until it contacts the support rod 32, thus tightening the support rod 32 against the top plate 78. The support rod 32 is clamped and fixed to the top plate 78 by the second bolt 74, thereby fixing the first support platform and the second support platform together.

[0049] Release Operation: The operator holds the operating lever 75 and rotates it counterclockwise. The operating lever 75 drives the second bolt 74 to rotate counterclockwise, unscrewing the two nuts 76 and moving the second bolt 74 away from the top plate 78. When the second bolt 74 disengages from the support rod 32, the second bolt 74 is no longer tightened against the support rod 32. The support rod 32 can then move relative to the receiving hole 331, changing the interval between the first and second support platforms, thereby adjusting the overall length of the support platform.

[0050] In some embodiments, a second reinforcing rib 72 is added. The second reinforcing rib 72 is installed between the base plate 71 and the second support plate 77, and between the second support plate 77 and the first support plate 73. The second reinforcing rib strengthens the connection between the base plate 71 and the second support plate 77, and between the second support plate 77 and the first support plate 73.

[0051] In some embodiments, to facilitate quick determination of the spacing between the two symmetrical aperture adjustment holes, such as... Figure 1-4As shown, a hole spacing marking area block 6 is added. The hole spacing marking area block 6 is provided on the first support platform 31 and the second support platform 32 near the slide groove 34. The hole spacing marking area block 6 is provided with hole spacing marking lines for two symmetrical hole diameter adjustment holes 35.

[0052] The hole spacing markings allow for quick and easy identification of the interval between two symmetrical diameter adjustment holes 35. It is understood that the interval between each pair of symmetrical diameter adjustment holes 35 corresponds to a specific specification of the GIS equipment busbar sleeve. Therefore, based on the specifications of the GIS equipment busbar sleeve, the substrate 53 can be quickly moved to the corresponding diameter adjustment hole, enabling rapid and secure installation of the clamping body. For example, the hole spacing markings may indicate 300mm, 400mm, 500mm, etc., with arrows pointing to the corresponding diameter adjustment holes at both ends. When the diameter of the GIS equipment busbar sleeve is 300mm, the positions of the two symmetrical diameter adjustment holes can be quickly determined based on the 300mm markings on the hole spacing markings, allowing the substrate to be quickly moved to the corresponding diameter adjustment hole.

[0053] It should be noted that when the GIS equipment busbar bushing is installed on the support platform, the longitudinal centerline of the GIS equipment busbar bushing and the longitudinal centerline of the support platform are vertically aligned and parallel to each other.

[0054] The working method of this utility model: The support legs 2 on the support platform 3 are all equipped with casters 1 with brake pads. The support platform 3 can be moved easily by the casters 1, and the support platform can drive the GIS equipment busbar bushing installed on it to move.

[0055] Multiple GIS busbar bushings to be spliced ​​are placed individually on a utility model GIS busbar bushing splicing moving trolley. The longitudinal centerline of the GIS busbar bushing is adjusted to be vertically aligned and parallel with the longitudinal centerline of the support platform. Then, according to the diameter specification of the GIS busbar bushing, the base plates 53 on the two clamping bodies are moved to the corresponding diameter adjustment holes 35. The first bolt 52 is then screwed into the diameter adjustment hole through the base plate 53. When the first bolt 52 is tightened, the base plate 53 is fixed in the sliding groove 34, so that the baffle 51 is fixedly attached to the pipe wall of the GIS busbar bushing. The two baffles 51 can prevent the GIS busbar bushing from moving laterally.

[0056] During splicing, the two GIS busbar bushings to be spliced ​​are moved to be aligned with each other via the support platform 3, ensuring that the two GIS busbar bushings at the splicing point are in contact, thus enabling the splicing work to be carried out. After the GIS busbar bushings are lifted onto the support platform by the overhead crane or truck crane, the overhead crane or truck crane does not need to participate in the splicing work of the two GIS busbar bushings, reducing the usage time of the overhead crane or truck crane.

[0057] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A GIS device bus bushing splicing mobile trolley, characterized in that: include The support platform (3) includes a first support platform (31) and a second support platform (33). The second support platform (33) has a first support platform (31) at both ends. The second support platform (33) has storage holes (331) on both sides. The first support platform (31) has a support rod (32) corresponding to the storage hole (331). The support rod (32) is inserted into the storage hole (331). The first support platform (31) and the second support platform (33) are both provided with a transverse sliding groove (34). The bottom surface of the sliding groove (34) is symmetrically provided with multiple aperture adjustment holes (35) around the longitudinal center line (4) of the support platform (3). Fastener (7) is installed on the second support platform (33) and is loosely or tightly connected to the support rod (32); Pipe clamps (5), each groove (34) is equipped with a pipe clamp (5), the pipe clamps (5) are threadedly connected to the orifice adjustment hole (35) by a first bolt (52); and Support legs (2) are installed at the bottom of the first support platform (31) and the second support platform (33).

2. The GIS apparatus bus duct splicing mobile trolley as claimed in claim 1, wherein: The pipe clamp (5) also includes two clamping bodies, which are symmetrically installed in the slide groove (34) with the longitudinal center line (4). The clamping body includes a baffle (51) and a base plate (53). The baffle (51) is vertically mounted on the base plate (53). The base plate (53) is mounted on the slide groove (34) and threadedly connected to the aperture adjustment hole (35) by a first bolt (52).

3. The GIS apparatus bus duct splicing mobile trolley as claimed in claim 2, wherein: It also includes a first reinforcing rib (54), and at least one first reinforcing rib (54) is installed between the baffle (51) and the base plate (53).

4. The GIS apparatus bus duct splicing mobile cart of claim 1, wherein: The fastener (7) includes Base plate (71); The second support plate (77) is connected to the base plate (71) at one end and to the first support plate (73) at the other end; the first support plate (73) is provided with a through hole (731), and nuts (76) are provided on both sides of the through hole (731). The second bolt (74) extends through the first support plate (73) and two nuts (76) toward the top plate (78), the top plate (78) and the first support plate (73) being arranged parallel to each other at intervals; and The top plate (78) is provided with at least one third reinforcing rib (79).

5. The GIS apparatus bus duct splicing mobile cart of claim 4, wherein: It also includes a second reinforcing rib (72) and a control lever (75). The second reinforcing rib (72) is installed between the base plate (71) and the second support plate (77), and between the second support plate (77) and the first support plate (73). The control lever (75) is installed on the second bolt (74).

6. The GIS apparatus bus duct splice mobile cart of claim 1, wherein: It also includes a hole spacing marking area block (6). The first support platform (31) and the second support platform (33) are provided with a hole spacing marking area block (6) near the slide groove (34). The hole spacing marking area block (6) is provided with hole spacing marking lines for two symmetrical hole diameter adjustment holes (35).

7. The GIS apparatus bus duct splice mobile cart of claim 1, wherein: It also includes a driving wheel (1), with a driving wheel (1) installed at the bottom of each support leg (2).

8. The GIS apparatus bus duct splice mobile cart of claim 7, wherein: The driving wheel (1) is a swivel wheel with brake pads.

9. The GIS apparatus bus duct splicing trolley as claimed in any one of claims 1 to 8, wherein: The support leg (2) is a telescopic support leg.

10. The GIS apparatus bus duct splice mobile cart of claim 9, wherein: The telescopic support leg includes The second leg (24) has multiple first leg adjustment holes (23) spaced apart along the height direction; The first leg (21) has a plurality of second leg adjustment holes (25) corresponding to the plurality of first support leg adjustment holes (23) along the height direction. When the first leg (21) is inserted into the second leg (24), at least one second leg adjustment hole (25) corresponds to the first leg adjustment hole (23). as well as The pin (22) is threaded through two corresponding first leg adjustment holes (23) and second leg adjustment holes (25).

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