Bus duct with external shockproof structure
The bus trunking design with a multi-layer damping buffer structure solves the problems of insulation wear and loose connection in traditional bus trunking under vibration environment, effectively absorbs high-frequency and low-frequency vibrations, and enhances the seismic performance of the bus trunking.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ALBANESE BUS PINGHU
- Filing Date
- 2025-06-27
- Publication Date
- 2026-05-15
AI Technical Summary
Traditional busbar trunking is prone to insulation wear and loosening due to vibration in a vibrating environment. Existing buffering elements such as spring supports or rubber pads have limited buffering effect, especially in terms of weak absorption capacity for high-frequency vibration and easy fatigue failure.
A multi-layered damping buffer structure is adopted, including a hydraulic damper, damping rod, rubber spring, metal spring, silicone rubber buffer outer layer and metal honeycomb frame plate, which are combined with rigid support to form a rigid-flexible coupling seismic resisting system, absorbing vibration energy in stages through multiple layers of materials.
It effectively absorbs high-frequency and low-frequency vibrations, adapts to complex working conditions, limits vibrations within a safe range, and improves the seismic performance and service life of busbar trunking.
Smart Images

Figure CN224245340U_ABST
Abstract
Description
Technical Field
[0001] This utility model is a busbar trunking with an external shock-absorbing structure, belonging to the field of busbar trunking technology. Background Technology
[0002] Busbar trunking, as a crucial piece of equipment for power transmission, is widely used in industrial and civil buildings. Traditionally, busbar trunking is fixed to walls or the ground using supports during installation, and its seismic performance depends on the rigidity and connection strength of these supports. However, under the influence of earthquakes, mechanical vibrations, or dynamic environmental loads, busbar trunking is prone to insulation wear, loose connections, and even short-circuit faults due to vibration transmission. Therefore, in existing technologies, external seismic isolation structures often employ single buffer elements such as spring supports or rubber pads.
[0003] However, the buffering effect of existing spring supports or rubber pads is limited. Spring supports have a weak ability to absorb high-frequency vibrations and are prone to fatigue failure after long-term use. There is an urgent need for a bus trunking with an external shock-absorbing structure to solve the above-mentioned problems. Utility Model Content
[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a bus trunking with an external shock-absorbing structure to solve the problems mentioned in the background technology. This utility model adopts a multi-layer damping buffer structure, which can buffer and absorb various external vibrations, and can cope with high-frequency and low-frequency vibrations at the same time, adapting to complex working conditions.
[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a busbar trunking with an external shock-absorbing structure, comprising a mounting base and a protective outer frame. Hydraulic dampers are longitudinally fixed around the upper perimeter of the mounting base by multiple bolts and flanges. Each of the multiple hydraulic dampers contains a damping rod. The protective outer frame is located above the mounting base. Multiple rubber springs are uniformly bonded to the inner wall of the protective outer frame. Each of the multiple rubber springs contains a metal spring. A silicone rubber buffer layer is bonded between the multiple rubber springs. A metal honeycomb frame plate is composited inside the silicone rubber buffer layer. The inner wall of the metal honeycomb frame plate is coated with a wear-resistant coating. The main body of the busbar trunking is inserted within the wear-resistant coating.
[0006] Furthermore, each of the damping rods has a sliding adjustment groove at its front and rear ends, and each of the damping rods has an installation cap on its upper outer end.
[0007] Furthermore, locking bolts are inserted at the front and rear ends of the plurality of mounting caps, and the threaded ends of the plurality of locking bolts are respectively inserted and fixed in the plurality of sliding adjustment grooves.
[0008] Furthermore, all of the aforementioned mounting caps are fixed to the lower end of the protective frame using hexagonal bolts.
[0009] Furthermore, the metal honeycomb frame panel is an aluminum honeycomb panel structure.
[0010] Furthermore, the wear-resistant coating is polytetrafluoroethylene or polyurethane.
[0011] The beneficial effects of this utility model are as follows: This utility model provides a busbar trunking system with an external shock-absorbing structure. Because it incorporates a hydraulic damper, damping rod, mounting cap, locking bolt, protective frame, rubber spring, metal spring, silicone rubber buffer layer, metal honeycomb frame plate, and wear-resistant coating, its structure is reasonable. Employing a multi-layered damping buffer structure, it can buffer and absorb various external vibrations, simultaneously handling both high-frequency and low-frequency vibrations and adapting to complex working conditions. The buffer layer acts as a "soft connection" to absorb high-frequency vibrations, while the support provides a rigid foundation as a "hard support." The combination of these two elements forms a rigid-flexible coupled shock-absorbing system. When external vibration occurs, the support first transfers the vibration energy to the buffer layer. The buffer layer dissipates energy in stages through multiple layers of materials (elastic damping layer + metal honeycomb plate), ultimately limiting the residual vibration within a safe range, demonstrating strong practicality. Attached Figure Description
[0012] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:
[0013] Figure 1 This is a schematic diagram of the structure of a busbar trunking with an external shock-absorbing structure according to the present invention;
[0014] Figure 2 This is an enlarged schematic diagram of the hydraulic damper of a busbar trunking with an external shock-absorbing structure according to this utility model.
[0015] Figure 3 This is a schematic diagram of a metal honeycomb frame plate structure for a busbar trough with an external shock-absorbing structure according to the present invention.
[0016] Figure 4 This is a half-sectional schematic diagram of the rubber spring structure of a busbar groove with an external shock-absorbing structure according to the present invention.
[0017] In the diagram: 1-Mounting base, 2-Hydraulic damper, 3-Damping rod, 4-Sliding adjustment groove, 5-Mounting cap, 6-Locking bolt, 7-Protective outer frame, 8-Rubber spring, 9-Metal spring, 10-Silicone rubber buffer outer layer, 11-Metal honeycomb frame plate, 12-Wear-resistant coating, 13-Bus trunking body. Detailed Implementation
[0018] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0019] Please see Figures 1-4 This utility model provides a technical solution: a busbar trunking with an external shock-absorbing structure, including a mounting base 1 and a protective outer frame 7. Hydraulic dampers 2 are longitudinally fixed around the upper circumference of the mounting base 1 by multiple bolts and flanges. Damping rods 3 are installed inside each of the multiple hydraulic dampers 2. The protective outer frame 7 is located above the mounting base 1. Multiple rubber springs 8 are bonded to the inner wall of the protective outer frame 7 at equal angles. Metal springs 9 are composited within each of the multiple rubber springs 8. A silicone rubber buffer outer layer 10 is bonded between the multiple rubber springs 8. A metal honeycomb frame plate 11 is composited inside the silicone rubber buffer outer layer 10. A wear-resistant coating 12 is applied to the inner wall of the metal honeycomb frame plate 11. The main body of the busbar trunking 13 is inserted into the wear-resistant coating 12. This design solves the problems of limited buffering effect of spring supports or rubber pads in the prior art, weak absorption capacity of spring supports for high-frequency vibrations, and easy fatigue failure after long-term use.
[0020] As the first embodiment of this utility model: multiple damping rods 3 are provided with sliding adjustment grooves 4 at their front and rear ends, and multiple damping rods 3 are provided with mounting caps 5 at their upper ends. Multiple mounting caps 5 are provided with locking bolts 6 at their front and rear ends. The threaded ends of multiple locking bolts 6 are respectively inserted and fixed in multiple sliding adjustment grooves 4. By adding multiple locking bolts 6 and fixing them in multiple sliding adjustment grooves 4, the mounting caps 5 can be fixed to the upper ends of multiple damping rods 3. Multiple mounting caps 5 are fixed to the lower end of the protective frame 7 by hexagonal bolts. By adding multiple mounting caps 5 and fixing them to the lower end of the protective frame 7 by hexagonal bolts, multiple damping rods 3 can be indirectly installed to the protective frame 7.
[0021] The metal honeycomb frame plate 11 is an aluminum honeycomb plate structure. By adding the metal honeycomb frame plate 11, which is an aluminum honeycomb plate structure, it can disperse low-frequency vibration stress and reduce the impact on the conductive copper busbars inside the busbar trunking. The wear-resistant coating 12 is made of polytetrafluoroethylene or polyurethane. By adding the wear-resistant coating 12, which is made of polytetrafluoroethylene or polyurethane, it prevents the metal honeycomb frame plate 11 from directly rubbing against the metal shell of the busbar trunking body 13. The silicone rubber buffer outer layer 10 can absorb high-frequency vibration through elastic deformation.
[0022] As a second embodiment of this utility model: the mounting base 1 is fixed to the wall, ground or special mounting base by bolts, serving as the support structure of the busbar trunking. It provides dynamic support force through the hydraulic damper 2 and damping rod 3, balancing the weight of the busbar trunking and offsetting vibration. The height of multiple mounting caps 5 fitted over multiple damping rods 3 is adjusted and fixed by multiple locking bolts 6, which facilitates the horizontal installation of the protective outer frame 7. Multiple rubber springs 8 and metal springs 9 can further buffer and absorb the transmitted vibration. Then, the silicone rubber buffer outer layer 10 can absorb high-frequency vibration through elastic deformation. The metal honeycomb frame plate 11 is an aluminum honeycomb structure, which can disperse low-frequency vibration stress and reduce the impact on the conductive copper busbars inside the busbar trunking. The wear-resistant coating 12 is polytetrafluoroethylene or polyurethane, which prevents the metal honeycomb frame plate 11 from directly rubbing against the metal shell of the busbar trunking body 13. By setting multiple of this device, the busbar trunking body 13 can be effectively shockproofed.
[0023] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0024] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A busbar trunking with an external shock-absorbing structure, comprising a mounting base (1) and a protective outer frame (7), characterized in that: The mounting base (1) is longitudinally fixed with hydraulic dampers (2) around its upper perimeter by multiple bolts and flanges. Each of the hydraulic dampers (2) is equipped with a damping rod (3). The protective frame (7) is located above the mounting base (1). Multiple rubber springs (8) are glued to the inner wall of the protective frame (7) at equal angles. Each of the multiple rubber springs (8) is combined with a metal spring (9). A silicone rubber buffer outer layer (10) is glued between the multiple rubber springs (8). A metal honeycomb frame plate (11) is combined inside the silicone rubber buffer outer layer (10). The inner wall of the metal honeycomb frame plate (11) is coated with a wear-resistant coating (12). A busbar trunking body (13) is inserted into the wear-resistant coating (12).
2. A busbar trunking with an external shock-absorbing structure according to claim 1, characterized in that: Each of the damping rods (3) has a sliding adjustment groove (4) at its front and rear ends, and each of the damping rods (3) has an installation cap (5) on its upper outer end.
3. A busbar trunking with an external shock-absorbing structure according to claim 2, characterized in that: Locking bolts (6) are inserted at the front and rear ends of the multiple mounting caps (5), and the threaded ends of the multiple locking bolts (6) are respectively inserted and fixed in multiple sliding adjustment grooves (4).
4. A busbar trunking with an external shock-absorbing structure according to claim 2, characterized in that: All of the aforementioned mounting caps (5) are fixed to the lower end of the protective outer frame (7) by hexagonal bolts.
5. A busbar trunking with an external shock-absorbing structure according to claim 1, characterized in that: The metal honeycomb frame plate (11) is an aluminum honeycomb plate structure.
6. A busbar trunking with an external shock-absorbing structure according to claim 1, characterized in that: The wear-resistant coating (12) is polytetrafluoroethylene or polyurethane.