An adjustable length busway
By setting up a chute and slide plate structure in the busbar trunking, stable contact of the copper plates is ensured, solving the problem of poor contact of the copper plates during length adjustment, and achieving unaffected conductivity and improved insulation performance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU YONGTUO ELECTRIC CO LTD
- Filing Date
- 2025-07-10
- Publication Date
- 2026-07-03
AI Technical Summary
In the process of adjusting the length of existing busbar trunking, poor contact of the copper plates can easily lead to a decrease in conductivity.
By setting up a chute and slide plate structure in the busbar trunking, the copper plates maintain stable contact at all times, and the insulating plate provides insulation protection, ensuring stable contact and good insulation effect between the copper plates.
This achieves stable contact of the copper plates during length adjustment, maintains unaffected conductivity, and provides good insulation, thereby improving the safety and convenience of the equipment.
Smart Images

Figure CN224459174U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of busbar technology, specifically an adjustable-length busbar. Background Technology
[0002] Busbar trunking, as a high-efficiency, safe, and energy-saving enclosed power transmission equipment, is mainly composed of copper, insulating materials, and a metal shell. It has been widely used in industrial and commercial fields. In order to facilitate the installation and configuration of busbar trunking, it is necessary for the busbar trunking to have a certain length adjustment function.
[0003] Meanwhile, a busbar trunking with adjustable length, patent application number CN202323249322.3, is applied in the field of busbar trunking. This utility model involves a trunking body 1 with a trunking body 2 fixedly connected to one end. An extension groove is fitted onto the bottom of the trunking body 2. Bolts 1, penetrating to both sides of the extension groove, are fixedly installed on both sides of the trunking body 2. When installing the busbar trunking between the busbar trunking and the conductor, the length of the busbar trunking is determined first by the length of the conductor. Knobs 1 and 2 are loosened to adjust the position of the extension groove at the bottom of the trunking body 2. After moving to the appropriate position, knob 1 is tightened. Simultaneously, the position of the extension plate at the bottom of the side plate is adjusted. After moving to the appropriate position, knob 2 is tightened, thus completing the adjustable length of the busbar trunking. This structure is simple, convenient to use, and easy to install and adjust. It allows for temporary adjustments based on actual usage, reducing the scrap rate of busbar trunking due to length discrepancies.
[0004] However, the following problems were found in the implementation of the relevant technology: Although the existing equipment can adjust its length according to the usage to increase the convenience of installation, the two sets of copper plates are prone to poor contact during the adjustment process, resulting in poor conductivity. Utility Model Content
[0005] To address the problems mentioned in the background art, this utility model provides an adjustable-length busbar trunking, which has the advantage that the two sets of copper plates maintain stable contact during the length adjustment process, and the conductivity is not affected.
[0006] To achieve the above objectives, this utility model provides the following technical solution: an adjustable-length busbar trunking, comprising a first trunking body and a second trunking body sleeved on the outside of the first trunking body. A first insulating plate is installed on the bottom inner side of the first trunking body. Multiple first copper plates are connected side-by-side to the top of the first insulating plate, and the top of the first copper plates is constructed with a sliding groove. A second insulating plate is installed on the top inner side of the second trunking body. Multiple second copper plates are connected side-by-side to the bottom of the second insulating plate, and the second copper plates are slidably connected to the inner side of the sliding groove. The left and right inner walls of the second trunking body are each constructed with a sliding groove. The left and right outer walls of the first trunking body are each integrally formed with a sliding plate that is slidably connected to the sliding groove. Multiple adjustment holes are opened side-by-side in the middle of the sliding plate. The outer wall of the second trunking body is constructed with positioning holes corresponding to the adjustment holes, and a hand-tightening screw is screwed between the positioning hole and the corresponding adjustment hole.
[0007] Preferably, two third insulating plates are symmetrically connected to the bottom inner side of the first tank, and two fourth insulating plates are symmetrically connected to the top inner side of the second tank, with the two fourth insulating plates located inside the two third insulating plates.
[0008] Preferably, the bottom inner side of the second groove has two symmetrically constructed sliding grooves, and the bottom of the first groove has two integrally formed sliding strips that are slidably connected to the sliding grooves.
[0009] Preferably, the first groove and the slide bar, and the second groove and the slide plate are both integrally cast structures.
[0010] Preferably, the bottom of the left and right outer walls of the second groove are connected to mounting plates, and the top of the mounting plates is evenly provided with multiple mounting holes.
[0011] Preferably, the left and right outer walls of the second tank are each connected to a fixing plate at their rear ends, and the front side of the fixing plate is provided with multiple fixing holes.
[0012] Preferably, a label is adhered to the top of the outer wall of the second tank, and a protective film is adhered to the surface of the label.
[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0014] 1. This utility model first loosens the hand screws on both sides, and then adjusts the length of the first groove extending from the second groove by sliding the two sets of sliding plates relative to the two grooves, thereby adjusting the length of the equipment itself. After adjustment, tighten the hand screws on both sides to fix it. The adjustment process is relatively convenient.
[0015] 2. In this utility model, during the sliding process of the two sets of sliding plates relative to the two sliding grooves, the upper second copper plate always slides inside the first copper plate's sliding groove, ensuring that the second copper plate and the first copper plate are always in stable contact and the conductivity is not affected.
[0016] 3. This utility model provides insulation protection for the first copper plate and the second copper plate through the first insulating plate, the second insulating plate, and two sets of third and fourth insulating plates, ensuring that the equipment always has a good insulation effect to guarantee safe use. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0018] Figure 2 This is a schematic diagram of the structure of the first groove of this utility model;
[0019] Figure 3 This is a schematic diagram of the structure of the second tank of this utility model.
[0020] In the diagram: 1. First groove; 2. Second groove; 3. First insulating plate; 4. First copper plate; 5. Slide 1; 6. Second insulating plate; 7. Second copper plate; 8. Slide plate; 9. Adjustment hole; 10. Positioning hole; 11. Hand screw; 12. Third insulating plate; 13. Slide bar; 14. Mounting plate; 15. Fixing plate; 16. Protective film. 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] like Figures 1 to 3As shown, this utility model provides an adjustable-length busbar trunking, including a first trunking body 1 and a second trunking body 2 sleeved outside the first trunking body 1. The second trunking body 2 and the first trunking body 1 can slide relative to each other, thus allowing adjustment of the overall length of the equipment. A first insulating plate 3 is welded to the bottom inner side of the first trunking body 1, and multiple first copper plates 4 are welded side by side to the top of the first insulating plate 3. The top of the first copper plates 4 is constructed with a sliding groove 5. A second insulating plate 6 is welded to the top inner side of the second trunking body 2, and multiple second copper plates 7 are welded side by side to the bottom of the second insulating plate 6. The second copper plates 7 are slidably connected to the inner side of the sliding groove 5, thus ensuring that the second copper plates 7 are always stably connected to the first copper plates 4. The two sides of the second groove 2 are both constructed with sliding grooves. The two sides of the outer walls of the first groove 1 are both integrally formed with sliding plates 8 that are slidably connected to the sliding grooves. The first groove 1 slides relative to the sliding grooves via the sliding plates 8 on both sides to adjust the length of the first groove 1 extending out of the second groove 2. The sliding plates 8 are provided with multiple adjustment holes 9 arranged side by side in the middle. The outer wall of the second groove 2 is constructed with positioning holes 10 corresponding to the adjustment holes 9. The positioning holes 10 and the corresponding adjustment holes 9 are screwed together with hand screws 11. The sliding plates 8 are fixed to the corresponding side of the sliding grooves via the hand screws 11, thereby fixing the first groove 1 to the corresponding side of the second groove 2.
[0023] Specifically, two third insulating plates 12 are symmetrically connected to the bottom inner side of the first tank 1 by multiple sets of screws, and two fourth insulating plates are symmetrically connected to the top inner side of the second tank 2 by multiple sets of screws. The two fourth insulating plates are located inside the two third insulating plates 12, and together with the first insulating plate 3 and the second insulating plate 6, they provide insulation protection for the first copper plate 4 and the second copper plate 7.
[0024] Furthermore, the inner bottom of the second groove 2 is symmetrically constructed with two sliding grooves 3, and the bottom of the first groove 1 is symmetrically integrally formed with two sliding strips 13 that are slidably connected to the sliding grooves 3. Through the structure of the two sets of sliding strips 13 sliding relative to the sliding grooves 3, the first groove 1 can move more smoothly relative to the second groove 2.
[0025] Furthermore, the first groove 1 and the slide bar, and the second groove 2 and the slide plate 8 are both integrally cast structures. The integrally cast structure has high strength, stable connection, and is not easy to loosen.
[0026] It is worth noting that mounting plates 14 are welded to the bottom of the left and right outer walls of the second tank 2, and multiple mounting holes are evenly opened on the top of the mounting plates 14. This structure can be used to connect the second tank 2 to the external structure.
[0027] It is worth noting that the left and right outer walls of the second tank 2 are connected to the rear end of the fixing plate 15, and the front side of the fixing plate 15 is provided with multiple fixing holes. The second tank 2 can also be connected to the external structure through this structure, making the connection method more flexible.
[0028] It is worth mentioning that a label 16 is attached to the top of the outer wall of the second tank 2. The surface of the label 16 is marked with the parameter information of the current equipment for easy understanding. In addition, a protective film is attached to the surface of the label 16 to prevent the parameter information from becoming blurred due to wear and tear.
[0029] The front, back, left, and right perspectives of this device are... Figure 1 The direction shown in the diagram is the reference.
[0030] Working principle: When the length of the device needs to be adjusted, first loosen the hand screws 11 on both sides. Then, the first groove 1 can be adjusted by sliding through the structure of the two sets of sliding plates 8 and the second sliding groove, so that the length of the first groove 1 extending from the inside of the second groove 2 changes. During the adjustment process, the second copper plate 7 is slidably connected with the first sliding groove 5, and the second copper plate 7 and the first copper plate 4 always maintain stable contact, so the conductivity is not affected. After the adjustment is completed, tighten the hand screws 11 again so that the tail of the hand screws 11 is screwed into the corresponding adjustment hole 9, so that the adjusted first groove 1 and second groove 2 can be fixed.
[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0032] 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. An adjustable length bus duct comprising a first duct body (1) and a second duct body (2) sleeved outside the first duct body (1), characterized in that: The first insulating plate (3) is installed on the inner bottom of the first groove (1). Multiple first copper plates (4) are connected side by side on the top of the first insulating plate (3). The top of the first copper plate (4) is constructed with a sliding groove (5). The second insulating plate (6) is installed on the inner top of the second groove (2). Multiple second copper plates (7) are connected side by side on the bottom of the second insulating plate (6). The second copper plates (7) are slidably connected to the inner side of the sliding groove (5). The left and right inner walls of the second groove (2) are constructed with sliding grooves. The left and right outer walls of the first groove (1) are integrally formed with sliding plates (8) that are slidably connected to the sliding grooves. Multiple adjustment holes (9) are opened side by side in the middle of the sliding plates (8). The outer wall of the second groove (2) is constructed with positioning holes (10) corresponding to the adjustment holes (9). A hand screw (11) is screwed between the positioning hole (10) and the corresponding adjustment hole (9).
2. An adjustable length busway as set forth in claim 1, characterized by: Two third insulating plates (12) are symmetrically connected to the bottom inner side of the first groove (1), and two fourth insulating plates are symmetrically connected to the top inner side of the second groove (2), with the two fourth insulating plates located inside the two third insulating plates (12).
3. An adjustable length busway as set forth in claim 1, characterized by: The bottom inner side of the second groove (2) has two symmetrical sliding grooves (3), and the bottom of the first groove (1) has two sliding strips (13) that are symmetrically and integrally formed with the sliding grooves (3).
4. An adjustable length busway as set forth in claim 3, characterized by: The first groove (1) and the slide bar, and the second groove (2) and the slide plate (8) are both integrally cast structures.
5. An adjustable length busway as set forth in claim 1, characterized by: The bottom of the left and right outer walls of the second groove (2) are connected to mounting plates (14), and the top of the mounting plates (14) is evenly provided with multiple mounting holes.
6. An adjustable length busway as set forth in claim 1, characterized by: The left and right outer walls of the second groove (2) are connected to a fixing plate (15) at their rear ends, and the front side of the fixing plate (15) is provided with multiple fixing holes.
7. An adjustable length busway as set forth in claim 1, wherein: The top of the outer wall of the second tank (2) is covered with a label paper (16), and a protective film is adhered to the surface of the label paper (16).