Bus duct with adjustable length
By introducing a structure consisting of a connecting frame, a fixed side box, a two-way screw, and a movable slider into the busbar trunking, the problem of inconvenient busbar trunking length adjustment is solved, enabling flexible adjustment and stable installation of the busbar trunking length.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FOSHAN SHUNDE MOLFO ELECTRIC APPLIANCE CO LTD
- Filing Date
- 2025-05-15
- Publication Date
- 2026-04-17
AI Technical Summary
The existing busbar trunking does not have a length adjustment function, which means that it is necessary to select a suitable length specification during the installation process, making it inconvenient to use.
A structure including a connecting frame, a busbar trunking body, a fixed side box, a bidirectional lead screw, and a movable slider is designed. By rotating the screw block to adjust the bidirectional lead screw, the movable slider is driven to slide within the connecting frame, thereby adjusting the length of the busbar trunking. The adjustment position is monitored by an indicator plate and a scale plate.
It enables flexible adjustment of the busbar trunking length, improving the convenience of installation and the stability of adjustment. The combination of the indicator plate and the scale plate ensures the accuracy of adjustment.
Smart Images

Figure CN224138681U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of busbar technology, specifically to a busbar with adjustable length. Background Technology
[0002] Busbar trunking is a standardized power transmission system used for the efficient distribution and transmission of high-current electrical energy. It replaces traditional cables by integrating metal conductors (copper / aluminum busbars) into a single package, enabling safe, flexible, and high-capacity transmission of electrical energy from transformers to terminal equipment (such as distribution cabinets, motors, lighting, etc.). However, most existing busbar trunking systems do not have the function of length adjustment. When it is necessary to adjust the length of the busbar trunking during installation, it is necessary to select a busbar trunking with a suitable length specification, which is not convenient to use. Utility Model Content
[0003] The purpose of this utility model is to provide a busbar trunking with adjustable length, in order to solve the problem mentioned in the background art that most existing busbar trunking does not have the function of length adjustment. When it is necessary to adjust the length of the busbar trunking during the installation process, it is necessary to select a busbar trunking with a suitable length specification, which is not convenient to use.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a busbar trunking with adjustable length, comprising:
[0005] Connection frame;
[0006] The No. 1 busbar trunking body is slidably set inside the connecting frame;
[0007] The No. 2 busbar trunking body is slidably disposed inside the connecting frame, and the No. 1 busbar trunking body and the No. 2 busbar trunking body are electrically connected by a wire.
[0008] The No. 1 fixed side box is located on one side of the connecting frame;
[0009] A bidirectional lead screw is rotatably mounted inside the first fixed side box. A first movable slider is symmetrically threaded to the outer side of the bidirectional lead screw. The first movable slider is slidably connected to the first fixed side box and to the connecting frame. One of the first movable sliders is fixedly connected to the first busbar trunking body, and the other is fixedly connected to the second busbar trunking body.
[0010] As a preferred embodiment of this utility model: a second fixed side box is fixedly connected to one side of the connecting frame, and a second movable slider is symmetrically slidably arranged inside the second fixed side box. One side of one of the second movable sliders is fixedly connected to the body of the first busbar, and one side of the other second movable slider is fixedly connected to the body of the second busbar. The second movable slider is slidably connected to the connecting frame.
[0011] As a preferred embodiment of this utility model: the second movable slider is provided with a limiting rod inside, and the limiting rod is fixedly connected to the second fixed side box.
[0012] As a preferred embodiment of this utility model: an indicator plate is fixedly connected to one side of one of the first movable sliders, the indicator plate is slidably connected to the first fixed side box, and a scale plate that cooperates with the indicator plate is provided on one side of the connecting frame.
[0013] As a preferred embodiment of this utility model: a rotating screw block is rotatably provided on one side of the first fixed side box, and one end of the bidirectional screw is fixedly connected to the rotating screw block.
[0014] As a preferred embodiment of this utility model: a fixed top plate is installed on the top of the connecting frame by bolts, a first heat dissipation hole is opened inside the fixed top plate, a second heat dissipation hole is opened inside the connecting frame, and a conductive bar is provided on one side of both the first busbar trunk body and the second busbar trunk body.
[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model, by setting a first fixed side box, a bidirectional lead screw, and a first movable slider, realizes the rotation adjustment of the bidirectional lead screw by rotating the screw block. When the bidirectional lead screw rotates, it drives the outer symmetrical first movable slider to move and adjust. When the first movable slider moves, it drives the first busbar trunk body and the second busbar trunk body to adjust synchronously. The first busbar trunk body and the second busbar trunk body slide within the connecting frame to limit the distance between the first busbar trunk body and the second busbar trunk body, thereby completing the length adjustment of the busbar trunk. By setting an indicator plate and a scale plate, when the first movable slider moves and adjusts on the outside of the bidirectional lead screw, the first movable slider drives the indicator plate on one side to move. The scale plate indicates the movement position of the indicator plate, and the adjustment position of the first movable slider is detected and processed, and the adjustment positions of the first busbar trunk body and the second busbar trunk body are monitored and processed. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0017] Figure 2 This is a schematic diagram of the internal structure of the No. 1 fixed side box of this utility model;
[0018] Figure 3 This is a schematic diagram of the internal structure of the No. 2 fixed side box of this utility model;
[0019] Figure 4 This is a schematic diagram of the internal structure of the connecting frame of this utility model.
[0020] In the diagram: 1. Connecting frame; 2. Fixed top plate; 3. Busbar No. 1 body; 4. Busbar No. 2 body; 5. Conductive busbar; 6. Fixed side box No. 1; 7. Bidirectional lead screw; 8. Moving slider No. 1; 9. Rotating screw block; 10. Moving slider No. 2; 11. Limiting rod; 12. Fixed side box No. 2; 13. Indicator plate; 14. Scale plate; 15. Heat dissipation hole No. 1; 16. Heat dissipation hole No. 2. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0022] Please see Figures 1 to 4 This utility model provides a technical solution: an adjustable-length busbar trunking, comprising: a connecting frame 1; a first busbar trunking body 3 slidably disposed inside the connecting frame 1; a second busbar trunking body 4 slidably disposed inside the connecting frame 1, the first busbar trunking body 3 and the second busbar trunking body 4 being electrically connected by a wire; a first fixed side box 6 fixedly connected to one side of the connecting frame 1; a bidirectional lead screw 7 rotatably disposed inside the first fixed side box 6, the outer side of the bidirectional lead screw 7 being symmetrically threaded with a first movable slider 8, the first movable slider 8 being slidably connected to the first fixed side box 6, the first movable slider 8 being slidably connected to the connecting frame 1, one of the first movable sliders 8 being fixedly connected to the first busbar trunking body 3, and the other first movable slider 8 being fixedly connected to the second busbar trunking body 4.
[0023] It should be noted that in this embodiment, by rotating the rotating screw block 9, the rotating screw block 9 drives the bidirectional lead screw 7 to rotate and adjust. The bidirectional lead screw 7 drives the outer first movable slider 8 to move. The first movable slider 8 slides within the first fixed side box 6. By using the two first movable sliders 8 to move and adjust the first busbar trunking body 3 and the second busbar trunking body 4 respectively, the distance between the first busbar trunking body 3 and the second busbar trunking body 4 is adjusted, and the overall length is adjusted. When the main body 4 of the first busbar trunking moves, it drives the second sliding block 10 on one side to move. The second sliding block 10 slides to a limit outside the limit rod 11, which improves the stability of the adjustment of the main body 3 of the first busbar trunking and the main body 4 of the second busbar trunking. When one of the first sliding blocks 8 moves for adjustment, the first sliding block 8 drives the indicator plate 13 to slide for adjustment. The position of the indicator plate 13 is monitored by the scale plate 14, which makes it convenient to adjust the distance between the main body 3 of the first busbar trunking and the main body 4 of the second busbar trunking, and to adjust the overall length of the busbar trunking.
[0024] In one embodiment, such as Figure 3 and Figure 4 As shown, a second fixed side box 12 is fixedly connected to one side of the connecting frame 1. A second movable slider 10 is symmetrically slidably arranged inside the second fixed side box 12. One side of one of the second movable sliders 10 is fixedly connected to the body 3 of the first busbar trunking, and one side of the other second movable slider 10 is fixedly connected to the body 4 of the second busbar trunking. The second movable slider 10 is slidably connected to the connecting frame 1.
[0025] It should be noted that in this embodiment, a second movable slider 10 is provided on one side of both the first busbar trunking body 3 and the second busbar trunking body 4. The second movable slider 10 slides within the second fixed side box 12 to limit the movement of the first busbar trunking body 3 and the second busbar trunking body 4 within the connecting frame 1, thereby improving the stability of the sliding of the first busbar trunking body 3 and the second busbar trunking body 4 within the connecting frame 1.
[0026] In one embodiment, such as Figure 3 and Figure 4 As shown, the second movable slider 10 has a limit rod 11 inside, which is fixedly connected to the second fixed side box 12.
[0027] It should be noted that in this embodiment, the second movable slider 10 slides to a limit outside the limiting rod 11, thereby improving the stability of the adjustment of the second movable slider 10, the first busbar trunking body 3 and the second busbar trunking body 4.
[0028] In one embodiment, such as Figure 1 , Figure 2 and Figure 4As shown, one of the first movable sliders 8 is fixedly connected to one side of an indicator plate 13, which is slidably connected to the first fixed side box 6. A scale plate 14 that cooperates with the indicator plate 13 is provided on one side of the connecting frame 1.
[0029] It should be noted that in this embodiment, when one of the first moving sliders 8 moves, it drives the indicator plate 13 on one side to move. The moving position of the indicator plate 13 is detected by the scale plate 14, and the adjustment position of the first moving slider 8 is detected and processed.
[0030] In one embodiment, such as Figure 2 and Figure 4 As shown, a rotating screw block 9 is rotatably installed on one side of the first fixed side box 6, and one end of the bidirectional screw 7 is fixedly connected to the rotating screw block 9.
[0031] It should be noted that in this embodiment, the bidirectional lead screw 7 is rotated by rotating the screw block 9, and the bidirectional lead screw 7 rotates, thereby moving and adjusting the outer first movable slider 8.
[0032] In one embodiment, such as Figures 1 to 4 As shown, a fixed top plate 2 is installed on the top of the connecting frame 1 by bolts. A first heat dissipation hole 15 is opened inside the fixed top plate 2, and a second heat dissipation hole 16 is opened inside the connecting frame 1. Conductive busbars 5 are provided on one side of both the first busbar trunk body 3 and the second busbar trunk body 4.
[0033] It should be noted that in this embodiment, heat dissipation is achieved through the first heat dissipation hole 15 in the fixed top plate 2 and the second heat dissipation hole 16 in the connecting frame 1.
[0034] In the description of this utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "side", "top", "inner", "front", "center", "both ends", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0035] Furthermore, the terms "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first," "second," "third," or "fourth" may explicitly or implicitly include at least one of those features.
[0036] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A length-adjustable bus duct, characterized by, include: Connecting frame (1); The No. 1 busbar trunking body (3) is slidably disposed inside the connecting frame (1); The No. 2 busbar trunking body (4) is slidably disposed inside the connecting frame (1), and the No. 1 busbar trunking body (3) and the No. 2 busbar trunking body (4) are electrically connected by a wire. The first fixed side box (6) is set on one side of the connecting frame (1); A bidirectional lead screw (7) is rotatably mounted inside the first fixed side box (6). The outer side of the bidirectional lead screw (7) is symmetrically threaded with a first movable slider (8). The first movable slider (8) is slidably connected to the first fixed side box (6) and to the connecting frame (1). One of the first movable sliders (8) is fixedly connected to the first busbar trunking body (3), and the other first movable slider (8) is fixedly connected to the second busbar trunking body (4).
2. The length-adjustable bus duct according to claim 1, characterized in that: A second fixed side box (12) is fixedly connected to one side of the connecting frame (1). A second movable slider (10) is symmetrically slidably arranged inside the second fixed side box (12). One side of one of the second movable sliders (10) is fixedly connected to the first busbar trunking body (3), and one side of the other second movable slider (10) is fixedly connected to the second busbar trunking body (4). The second movable slider (10) is slidably connected to the connecting frame (1).
3. The length-adjustable bus duct of claim 2, wherein: The second movable slider (10) is internally equipped with a limiting rod (11), which is fixedly connected to the second fixed side box (12).
4. The length-adjustable bus duct of claim 1, wherein: One of the first movable sliders (8) is fixedly connected to one side of an indicator plate (13), the indicator plate (13) is slidably connected to the first fixed side box (6), and a scale plate (14) that cooperates with the indicator plate (13) is provided on one side of the connecting frame (1).
5. The length-adjustable bus duct of claim 4, wherein: A rotating screw block (9) is rotatably provided on one side of the first fixed side box (6), and one end of the bidirectional screw (7) is fixedly connected to the rotating screw block (9).
6. The length-adjustable busway of claim 1, wherein: The top of the connecting frame (1) is fitted with a fixed top plate (2) by bolts. The fixed top plate (2) has a first heat dissipation hole (15) inside. The connecting frame (1) has a second heat dissipation hole (16) inside. Conductive busbars (5) are provided on one side of both the first busbar trunk body (3) and the second busbar trunk body (4).