Three-phase common box GIS bus conductor installation simple auxiliary trolley
By designing a simple auxiliary trolley for installing three-phase common-box GIS busbar conductors, and utilizing a combination structure of base, pulleys, and adjusting bolts, the problems of conductor collisions and installation difficulties were solved, achieving stable transportation and efficient connection of conductors, and reducing installation costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NEW NORTHEAST ELECTRIC GROUP HIGH VOLTAGE SWITCHGEAR
- Filing Date
- 2025-07-16
- Publication Date
- 2026-07-14
Smart Images

Figure CN224502735U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of GIS supporting equipment technology, and in particular, it is a simple auxiliary trolley for installing three-phase common-box GIS busbar conductors. Background Technology
[0002] Gas-insulated metal-enclosed switchgear (GIS) is a complete switchgear system composed of electrical components such as circuit breakers, disconnectors, grounding switches, current transformers, voltage transformers, surge arresters, busbars, bushings, or cable termination devices. These components are interconnected by conductors and enclosed in a grounded metal housing filled with pressurized insulating gas. The busbar is a key unit of the GIS, used to connect other functional units. During busbar installation, conductors must be threaded into the busbar housing until they are inserted into the other end of the housing, completing the conductor connection. Due to the long length and weight of the conductors, collisions are common during installation, and manual connection is difficult. Existing installation trolleys typically transport three-phase conductors side-by-side, making collisions unavoidable. Furthermore, the conductors require repositioning after delivery, further complicating installation. Summary of the Invention
[0003] This utility model addresses the problems existing in the background technology by providing an auxiliary trolley for installing three-phase common-box GIS busbar conductors, which is suitable for different layout forms. It effectively avoids collisions between conductors, saves manpower, shortens installation and docking time, reduces installation and docking difficulty, and has low manufacturing cost.
[0004] This utility model is achieved through the following technical solution: a simple auxiliary trolley for installing three-phase common-box GIS busbar conductors, set in the busbar housing, including a base, with pulleys installed at the bottom of the base, and a three-phase conductor support frame installed at the top via adjusting bolts; the base is parallel to the ground in the middle and bent obliquely upward on both sides, with multiple sets of pulleys at the bottom of the base, all of which are in contact with the inner wall of the busbar housing; the three-phase conductor support frame includes a main structure in the middle and symmetrically arranged support structures on both sides, with one of the three-phase conductors placed on the main structure and the other two symmetrically placed on the support structures.
[0005] The main structure is a trapezoidal structure that is wider at the top and narrower at the bottom; the supporting structure is connected and set on the left and right sides of the trapezoidal structure, and the supporting structure has two rows, which are tree-branch-like structures.
[0006] Each branch of the tree-like structure is provided with a support rod at its root, forming a stable support part between the side of the trapezoidal structure, the support rod, and the tree-like structure.
[0007] The top two sides of the trapezoidal structure are higher than the top side.
[0008] The adjusting bolts consist of two bolts, which are installed on the left and right sides of the main structure.
[0009] The beneficial effects of this utility model are:
[0010] This utility model provides a simple auxiliary trolley for installing three-phase common-box GIS busbar conductors. By setting up a three-phase conductor support frame, pulleys, adjusting bolts, and a base, the busbar conductors arranged in an equilateral triangle or inverted triangle configuration can be transported separately, effectively avoiding collisions between conductors and reducing the manpower waste caused by repositioning conductors. The conductor height can be adjusted by adjusting the bolts, reducing the difficulty of installation and docking caused by equipment size errors. Attached Figure Description
[0011] Figure 1 : An installation diagram showing the three-phase conductors arranged in an equilateral triangle configuration;
[0012] Figure 2 : A schematic diagram of the installation when the three-phase conductors are arranged in an inverted triangle configuration;
[0013] Figure 3 This is a schematic diagram of the assembly structure of the present invention and a three-phase conductor. Detailed Implementation
[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments. When the description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of apparatuses consistent with some aspects of the present invention as detailed in the appended claims.
[0015] like Figure 3The diagram shows a simple auxiliary trolley for installing three-phase GIS busbar conductors. It is housed within the busbar housing 6 and includes a base 4. The base 4 has pulleys 2 mounted on its lower part and a three-phase conductor support frame 1 mounted on its upper part via adjusting bolts 3. Two adjusting bolts 3 are located on the left and right sides of the main structure 1-1. The base 4 is parallel to the ground in the middle and bends upwards on both sides. Multiple sets of pulleys 2 are located at the bottom of the base 4, all of which are in contact with the inner wall of the busbar housing 6. The three-phase conductor support frame 1 includes the main structure 1-1 in the middle and symmetrically arranged support structures 1-2 on both sides. One of the three-phase conductors is placed on the main structure 1-1, and the other two are symmetrically placed on the support structures 1-2. The main structure 1-1 is a trapezoidal structure, wider at the top and narrower at the bottom, with the top two sides of the trapezoidal structure higher than the top edge, thus ensuring the stability of the conductor after placement. The support structures 1-2 are connected to the left and right sides of the trapezoidal structure and have two rows, forming a tree-like structure. Each branch of the tree-like structure has a support rod at its base. The sides of the trapezoidal structure, the support rods, and the tree-like structure together form a stable support, increasing support force and ensuring the stability of the entire device during use. The three-phase conductors include phase A conductor 7, phase B conductor 8, and phase C conductor 5. When the three-phase conductors are arranged in an equilateral triangle, they are placed according to the solid line capitalization; when the three-phase conductors are arranged in an inverted triangle, they are placed according to the dashed line capitalization. During use, the three sets of pulleys 2 effectively reduce the manpower required for transportation and increase the stability of conductor transportation. The height difference between the conductors is adjusted by adjusting the bolts 3, thereby completing the conductor connection and reducing the difficulty of installation and connection.
[0016] like Figure 1 As shown, when the three-phase conductors form an equilateral triangle, the A-phase conductor 7 is placed on the top surface of the trapezoidal structure, and the B-phase conductor 8 and C-phase conductor 5 are placed on the support structures 1-2 on both sides of the lower layer, respectively. The three-phase conductors ABC are placed on the conductor support frame 1 to avoid collisions between the conductors, and then transported to the terminal of the busbar housing 6 for conductor docking.
[0017] like Figure 2 As shown, when the three-phase conductors form an inverted triangle, the A-phase conductor 7 is placed on the bottom edge of the trapezoidal structure, and the B-phase conductor 8 and C-phase conductor 5 are placed on the support structures 1-2 on both sides of the upper layer, respectively. The three-phase conductors ABC are placed on the conductor support frame 1 to avoid collisions between the conductors. They are then transported to the terminal of the busbar housing 6 for conductor docking.
Claims
1. A simple auxiliary trolley for installing conductors in a three-phase common-enclosure GIS busbar, characterized in that, The structure is installed in the busbar housing (6) and includes a base (4). The lower part of the base (4) is equipped with pulleys (2), and the upper part is equipped with a three-phase conductor support frame (1) by adjusting bolts (3). The base (4) is parallel to the ground in the middle and bends obliquely upward on both sides. The bottom of the base (4) is provided with multiple sets of pulleys (2), and the pulleys (2) are all in contact with the inner wall of the busbar housing (6). The three-phase conductor support frame (1) includes a main structure (1-1) in the middle and a support structure (1-2) symmetrically arranged on both sides. One of the three-phase conductors is placed on the main structure (1-1), and the other two are symmetrically placed on the support structure (1-2).
2. The simplified auxiliary trolley for installing three-phase common-enclosure GIS busbar conductors according to claim 1, characterized in that, The main structure (1-1) is a trapezoidal structure that is wider at the top and narrower at the bottom; the supporting structure (1-2) is connected and set on the left and right sides of the trapezoidal structure, and the supporting structure (1-2) has two rows, which are tree-branch-like structures.
3. The simplified auxiliary trolley for installing three-phase common-enclosure GIS busbar conductors according to claim 2, characterized in that, Each branch of the tree-like structure is provided with a support rod at its root, forming a stable support part between the side of the trapezoidal structure, the support rod, and the tree-like structure.
4. The simplified auxiliary trolley for installing three-phase common-enclosure GIS busbar conductors according to claim 2, characterized in that, The top two sides of the trapezoidal structure are higher than the top side.
5. A simple auxiliary trolley for installing three-phase common-enclosure GIS busbar conductors according to claim 1, characterized in that, The adjusting bolts (3) are two in number and are set on the left and right sides of the main structure (1-1).