Sliding contact type bus duct structure with built-in limiting protection
By designing a sliding busbar structure with built-in limit protection, the busbar is stably bolted using components such as a base, positioning frame, and threaded rod. Rubber protective pads and transparent observation windows improve protection and ease of maintenance, solving the problem of poor connection stability in traditional sliding busbars and enhancing the overall stability and ease of use of the busbar.
Patent Information
- Application Number
- CN202520119993.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-20
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2035-01-20
AI Technical Summary
Traditional sliding busbar trunking lacks limit protection after connection, resulting in poor connection stability, affecting practicality and safety. It is also inconvenient for overall positioning and installation, and the stability is difficult to achieve as expected.
A sliding busbar structure with built-in limit protection was designed. The busbar is stably bolted together through components such as base, positioning frame, bolts and threaded rods. Rubber protective pads and transparent observation windows are provided to improve protection and ease of maintenance.
It improves the stability of the busbar trunking and the protective effect of the sliding contact line, while being easy to maintain, ensuring the overall stability and convenience of the busbar trunking structure.
Smart Images

Figure CN223771742U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of busbar technology, specifically to a sliding busbar structure with built-in limit protection. Background Technology
[0002] Busbar trunking plays a crucial role in power systems as an important equipment for power transmission. Due to its flexibility and mobility, sliding contact busbar trunking is widely used in various power equipment and systems. However, traditional sliding contact busbar trunking often lacks effective limit protection measures after sliding contact connection, resulting in poor connection stability and affecting the practicality and safety of the busbar trunking. Therefore, it is particularly important to develop a sliding contact busbar trunking structure with built-in limit protection.
[0003] Referring to the CN221448042U specification, a sliding busbar structure with built-in limit protection is described. This structure includes a busbar body, with baffles fixedly installed at both the top and bottom of the body. Conductive busbars are uniformly fixedly installed at the top and bottom of the body, near the baffles' ports. Mounting grooves are provided on both sides of the busbar body, and limit protection mechanisms are installed within these grooves. This busbar structure allows for easy limit protection after sliding contact connection, ensuring connection stability and improving practicality. However, while this busbar structure is widely applicable, it is often difficult to position and install the entire structure, making it difficult to achieve the expected stability, thus requiring further improvement. Utility Model Content
[0004] The purpose of this utility model is to provide a sliding busbar structure with built-in limit protection, so as to solve the problem that although the busbar structure mentioned in the background art can be well applied, it is usually not convenient to position and install the busbar structure as a whole, making it difficult for the stability of the busbar structure to achieve the expected results.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a sliding busbar structure with built-in limit protection, comprising a base, a busbar housing at the top of the base, a frame on both inner walls of the upper end of the busbar housing, a cover installed on the top of the busbar housing above the frame, several locking bolts installed on both sides of the top of the cover, the bottom end of the locking bolts penetrating the cover and threadedly connected to the frame, a washer fitted on the outer wall of the upper end of the locking bolt, the bottom end of the washer contacting the top of the cover, connecting brackets on both sides of the bottom of the base, and a positioning bracket at the end of the connecting bracket away from the base.
[0006] Preferably, the positioning frame has an inner waist-shaped positioning hole, both ends of which extend to the outside of the positioning frame. The positioning frame on both sides of the waist-shaped positioning hole has a circular positioning hole, both ends of which extend to the outside of the positioning frame. The circular positioning hole and the waist-shaped positioning hole are provided so that the busbar structure can be bolted together as a whole with the help of bolts.
[0007] Preferably, the outer walls on both sides of the busbar trunking housing are provided with inlet and outlet ports, one end of which extends into the interior of the busbar trunking housing. The inlet and outlet ports are provided to allow the sliding contact line to pass through or out of the busbar trunking housing.
[0008] Preferably, both sides of the busbar trunking housing are provided with side U-shaped limiting plates, and rubber protective pads are installed on the inner walls of the side U-shaped limiting plates. Both outer surfaces of the busbar trunking housing are provided with two nut seats, which are used to accommodate threaded rods.
[0009] Preferably, the nut seat has a threaded rod installed on its internal thread. One end of the threaded rod extends into the interior of the busbar housing and is rotatably connected to the outer wall of the side U-shaped limiting plate. The other end of the threaded rod extends into the exterior of the busbar housing. The threaded rod is provided to facilitate the placement of the side U-shaped limiting plate.
[0010] Preferably, a handle is installed at the end of the threaded rod away from the inlet / outlet, and several transparent observation windows are provided at the top of the cover. The threaded rod can be driven to rotate by rotating the handle.
[0011] Compared with the prior art, the beneficial effects of this utility model are: the built-in limit protection sliding busbar structure not only ensures the stability of the busbar structure during use, but also improves the protection effect of the sliding contact line during use, and achieves the purpose of easy maintenance of the busbar structure.
[0012] (1) A positioning frame is provided at the bottom of the base via a connecting frame, and a circular positioning hole and an oblong positioning hole are respectively provided inside the positioning frame. The busbar structure can be bolted and positioned on the installation platform by simply using bolts to pass through the circular positioning hole or the oblong positioning hole and screwing them into the installation platform, thereby ensuring the stability of the busbar structure during use.
[0013] (2) By rotating the handle, the threaded rod is rotated and slid inside the nut seat, so that the threaded rod drives the side U-shaped limiting plate to move horizontally, thereby adjusting the distance between the two side U-shaped limiting plates. The two side U-shaped limiting plates guide and limit the sliding contact lines of different specifications. Since the inner wall of the side U-shaped limiting plate is equipped with a rubber protective pad, the rubber protective pad can replace the side U-shaped limiting plate to contact the outer wall of the sliding contact line, thereby achieving the purpose of flexible protection of the outer wall of the sliding contact line. Because it is easy to build in to protect the sliding contact line, the protection effect of the busbar structure on the sliding contact line is improved.
[0014] (3) By setting several transparent observation windows, the cleaning status of the sliding contact line inside the busbar trunking housing can be observed. When a problem occurs during the cleaning process of the sliding contact line, the locking bolts can be turned to remove the cover from the top of the frame, thereby achieving the purpose of convenient maintenance of the busbar trunking structure. Attached Figure Description
[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0016] Figure 2 This is a side view of the structure of this utility model;
[0017] Figure 3 This is a top view of the structure of this utility model;
[0018] Figure 4 This utility model Figure 2 Enlarged structural diagram at point A in the middle.
[0019] In the diagram: 1. Base; 2. Connecting frame; 3. Positioning frame; 4. Circular positioning hole; 5. Waist-shaped positioning hole; 6. Busbar trunking housing; 7. Housing cover; 8. Locking bolt; 9. Transparent observation window; 10. Handle; 11. Nut seat; 12. Threaded rod; 13. Side U-shaped limiting plate; 14. Rubber protective gasket; 15. Cable inlet / outlet; 16. Washer; 17. Frame. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.
[0021] Please see Figure 1-4The present invention provides an embodiment of a sliding busbar structure with built-in limit protection, including a base 1, a busbar housing 6 at the top of the base 1, and inlet / outlet ports 15 on both sides of the outer wall of the busbar housing 6, one end of the inlet / outlet port 15 extending into the interior of the busbar housing 6.
[0022] In use, the sliding contact line is inserted into or out of the busbar housing 6 by means of the inlet / outlet port 15;
[0023] Both sides of the busbar housing 6 are provided with side U-shaped limiting plates 13. Rubber protective pads 14 are installed on the inner wall of the side U-shaped limiting plates 13. Two nut seats 11 are provided on the outer surfaces of both sides of the busbar housing 6.
[0024] In use, the nut seat 11 is provided to accommodate the threaded rod 12;
[0025] The nut seat 11 has a threaded rod 12 installed on its internal thread. One end of the threaded rod 12 extends into the interior of the busbar housing 6 and is rotatably connected to the outer wall of the side U-shaped limiting plate 13. The other end of the threaded rod 12 extends into the exterior of the busbar housing 6.
[0026] In use, the threaded rod 12 is provided to facilitate the placement of the side U-shaped limiting plate 13;
[0027] A handle 10 is installed at the end of the threaded rod 12 away from the inlet / outlet port 15, and several transparent observation windows 9 are provided at the top of the cover 7.
[0028] In use, the screw handle 10 is turned to drive the threaded rod 12 to rotate;
[0029] The inner walls on both sides of the upper end of the busbar trunking housing 6 are provided with a frame 17. The top of the busbar trunking housing 6 above the frame 17 is equipped with a cover 7. Several locking bolts 8 are installed on both sides of the top of the cover 7. The bottom end of the locking bolt 8 passes through the cover 7 and is threadedly connected to the frame 17. A washer 16 is fitted on the outer wall of the upper end of the locking bolt 8. The bottom end of the washer 16 touches the top of the cover 7. Connecting brackets 2 are provided on both sides of the bottom of the base 1. A positioning bracket 3 is provided at the end of the connecting bracket 2 away from the base 1. The positioning bracket 3 has a waist-shaped positioning hole 5 inside. Both ends of the waist-shaped positioning hole 5 extend to the outside of the positioning bracket 3. Circular positioning holes 4 are provided inside the positioning brackets 3 on both sides of the waist-shaped positioning hole 5. Both ends of the circular positioning holes 4 extend to the outside of the positioning bracket 3.
[0030] In use, the circular positioning hole 4 and the waist-shaped positioning hole 5 are provided so that the busbar trunking structure can be bolted together with bolts.
[0031] In this embodiment, a positioning frame 3 is first installed at the bottom of the base 1 via a connecting frame 2. A circular positioning hole 4 and a waist-shaped positioning hole 5 are respectively provided inside the positioning frame 3. By simply inserting bolts through the circular positioning hole 4 or the waist-shaped positioning hole 5 and screwing them into the mounting platform, the entire busbar structure can be bolted and positioned on the mounting platform. Then, the inlet / outlet port 15 allows the sliding contact line to be threaded into the busbar housing 6 and out of the busbar housing 6. Finally, by rotating the handle 10, the threaded rod 12 rotates and slides inside the nut seat 11, causing the threaded rod 12 to drive the side U-shaped limiting plate 13 to translate. The distance between the two side U-shaped limiting plates 13 is adjusted so that the two side U-shaped limiting plates 13 can guide and limit the sliding contact lines of different specifications. Since the inner wall of the side U-shaped limiting plate 13 is equipped with a rubber protective pad 14, the rubber protective pad 14 can replace the side U-shaped limiting plate 13 to contact the outer wall of the sliding contact line, so as to provide flexible protection for the outer wall of the sliding contact line. Finally, through the setting of several transparent observation windows 9, the cleaning status of the sliding contact line inside the busbar housing 6 can be observed. When a problem occurs during the cleaning of the sliding contact line, the locking bolt 8 can be turned to remove the cover 7 from the top of the frame 17, so as to facilitate the disassembly and maintenance of the busbar structure, thereby completing the use of the busbar structure.
Claims
1. A trolley bus duct structure with built-in limit protection, characterized in that: The utility model provides a base (1), the top of base (1) is equipped with bus duct shell (6), both sides inner wall of bus duct shell (6) upper end are equipped with frame (17), the top of bus duct shell (6) above frame (17) is installed with shell cover (7), both sides of shell cover (7) top end are installed with a plurality of locking bolt (8), the bottom of locking bolt (8) penetrates shell cover (7) and is connected with frame (17) screw thread, the outer wall of locking bolt (8) upper end is equipped with washer (16), the bottom of washer (16) and shell cover (7) top end touch, both sides of base (1) bottom are equipped with connecting frame (2), the one end of connecting frame (2) away from base (1) is equipped with positioning frame (3).
2. The slide-on bus duct structure with built-in limit protection according to claim 1, characterized in that: The inside of positioning frame (3) is equipped with waist type positioning hole (5), both ends of waist type positioning hole (5) extend to the outside of positioning frame (3), the inside of positioning frame (3) of both sides of waist type positioning hole (5) is equipped with circular positioning hole (4), both ends of circular positioning hole (4) extend to the outside of positioning frame (3).
3. The slide-on bus duct structure with built-in limit protection according to claim 1, characterized in that: The outer wall of both sides of bus duct shell (6) is equipped with access line port (15), one end of access line port (15) extends to the inside of bus duct shell (6).
4. The slide-on bus duct structure with built-in limit protection according to claim 1, characterized in that: Both sides of the inside of bus duct shell (6) are equipped with side U type limiting plate (13), the inner wall of side U type limiting plate (13) is installed with rubber protection gasket (14), the outer surface of both sides of bus duct shell (6) is equipped with two nut seat (11).
5. The slide-on bus duct structure with built-in limit protection according to claim 4, characterized in that: The inside of nut seat (11) is installed with threaded rod (12) screw thread, one end of threaded rod (12) extends to the inside of bus duct shell (6) and is rotatably connected with the outer wall of side U type limiting plate (13), the other end of threaded rod (12) extends to the outside of bus duct shell (6).
6. The slide-on bus duct structure with built-in limit protection according to claim 5, characterized in that: The one end of threaded rod (12) away from access line port (15) is installed with handle (10), the top of shell cover (7) is equipped with a plurality of transparent observation window (9).
Citation Information
Patent Citations
Sliding contact type bus duct structure with built-in limiting protection
CN221448042U