A dense insulation type bus duct

By installing detachable shielding cloth and waterproof cloth on the outside of the busbar unit, combined with limiting components and electric push rods, the problem of low safety in busbar dust cleaning is solved, achieving safe and efficient dust cleaning and extending the service life of the busbar.

CN115566610BActive Publication Date: 2026-05-01ZWEIG ELECTRIC BEIJING
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
ZWEIG ELECTRIC BEIJING
Filing Date
2022-10-11
Publication Date
2026-05-01

AI Technical Summary

Technical Problem

Cleaning dust from the surface of busbar trunking presents safety risks, especially at higher elevations where cleaning is difficult and can easily lead to falls and injuries to workers.

Method used

A removable shielding cloth is installed on the outside of the bus trunking unit. The shielding cloth is fixed by a connecting seat and hook system and is made of waterproof cloth. Combined with electric push rods and limit components, the stability and waterproof performance of the shielding cloth are ensured.

Benefits of technology

Dust can be removed by simply washing the tarpaulin on the ground, reducing the time spent working at heights, improving cleaning safety, and extending the service life of the busbar unit.

✦ Generated by Eureka AI based on patent content.

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Abstract

This application discloses a densely insulated busbar trunking, belonging to the technical field of power supply and distribution equipment. A densely insulated busbar trunking includes multiple busbar trunking units connected by connecting seats. Each connecting seat is detachably connected to a shielding cloth, which covers the busbar trunking unit. Adjacent shielding cloths are detachably connected by zippers. The shielding cloth is waterproof. The shielding cloth, placed on the outside of the busbar trunking unit, effectively blocks dust from entering the unit, allowing dust to adhere to the cloth. For cleaning, simply remove the cloth and wash on the ground, reducing the time workers spend at heights and improving the safety of dust removal. Furthermore, the waterproof design minimizes water penetration into the busbar trunking unit surface, slowing metal corrosion and extending the unit's lifespan.
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Description

Technical Field

[0001] This application relates to the technical field of power supply and distribution equipment, and in particular to a densely insulated busbar trunking. Background Technology

[0002] Busbar trunking is a closed metal device made of copper or aluminum busbars, used to distribute large amounts of power to various components in a distributed system. It is increasingly replacing electrical wires and cables in indoor low-voltage power transmission trunk line projects.

[0003] In related technologies, the most common method for busbar trunking is vertical installation, that is, vertical installation on the outer surface of the wall. The specific installation method is as follows: First, install the starting box at the bottom of the wall. After the starting box is installed, install one busbar trunking unit inside the starting box, and then connect and fix the remaining busbar trunking units to the wall in sequence through connectors.

[0004] Over long-term use, busbar trunking accumulates dust on its surface. Currently, workers typically clean this dust with brooms. However, due to varying installation heights, cleaning higher busbar trunking requires workers to stand on a table. Since the connection between the busbar trunking and the wall is difficult to clean, the cleaning process is often time-consuming. Furthermore, prolonged standing at height to clean the busbar trunking poses a safety risk, as workers are prone to falls. Summary of the Invention

[0005] To improve safety during dust cleaning, this application provides a densely insulated busbar trunking.

[0006] This application provides a densely insulated busbar trunking, employing the following technical solution:

[0007] A densely insulated busbar trunking includes multiple busbar trunking units connected by connecting seats. Each connecting seat is detachably connected to a shielding cloth, which can cover the busbar trunking units inside. Adjacent shielding cloths are detachably connected by zippers.

[0008] By adopting the above technical solution, a shielding cloth is installed on the outside of the bus trunking unit. The shielding cloth can block the dust of the bus trunking unit, so that the dust adheres to the shielding cloth. When cleaning the dust, it is only necessary to remove the shielding cloth and wash it on the ground, which reduces the working time of the staff at height and improves the safety of dust cleaning.

[0009] Optionally, an mounting strip is fixed to the outside of the busbar unit, and the mounting strip is fixed to the wall by expansion bolts.

[0010] By adopting the above technical solution, the installation of mounting strips and expansion bolts enables the busbar unit to be fixed to the wall.

[0011] Optionally, the connecting seat is provided with a plurality of hooks circumferentially arranged on the outer side, and a ring is fixed on the shielding cloth, with the ring hanging on the hook.

[0012] By adopting the above technical solution and setting rings and hooks, it is convenient to install or remove the covering cloth.

[0013] Optionally, a limiting groove is provided on the outer side of the end of the hook near the connecting seat, and a limiting component is provided on the end of the hook away from the connecting seat. The limiting component includes a mounting box and a limiting strip. The mounting box is fixed to the end of the hook away from the connecting seat, and the limiting strip is slidably connected to the end of the mounting box near the connecting seat. The limiting strip can be inserted into the limiting groove. A pull rod is fixed to the end of the limiting strip away from the connecting seat. The pull rod passes through the end face of the mounting box, and a pull end is fixed to the outside of the mounting box. A spring is sleeved on the part of the pull rod inside the mounting box. One end of the spring abuts against the end face of the limiting strip, and the other end abuts against the inner wall of the mounting box.

[0014] By adopting the above technical solution, when the ring is hung on the hook, the spring force drives the limiting strip to move into the limiting groove, thereby preventing the ring from detaching from the hook and improving the connection stability between the cover cloth and the connecting seat.

[0015] Optionally, the covering cloth is configured as a waterproof cloth.

[0016] By adopting the above technical solution and setting the shielding cloth as a waterproof cloth, water can be minimized from penetrating the shielding cloth and entering the surface of the bus trunking unit, thereby slowing down the corrosion of the metal on the surface of the bus trunking unit and improving the service life of the bus trunking unit.

[0017] Optionally, a covering strip is fixed at the bottom of the covering fabric above the zipper, and the covering strip covers the outside of the zipper.

[0018] By adopting the above technical solution, the shielding strip is placed on the outside of the zipper, which can prevent water from entering the shielding cloth from the gaps between the zipper teeth as much as possible, thus increasing the water-resistant performance of the shielding cloth.

[0019] Optionally, a first Velcro fastener is fixed to the lower inner side of the shielding strip, and a second Velcro fastener is fixed to the upper side of the shielding cloth, wherein the first Velcro fastener on the shielding strip can be attached to the second Velcro fastener on the shielding cloth.

[0020] By adopting the above technical solution, after securing adjacent shielding fabrics with zippers, attaching the first Velcro to the second Velcro can prevent the shielding strip from detaching from the shielding fabric as much as possible, thereby improving the water-blocking performance of the shielding fabric.

[0021] Optionally, a waterproof sheet is detachably connected to the mounting strip. The inner side of the waterproof sheet is in contact with the wall. Multiple L-shaped plates are fixed to the outer side of the waterproof sheet away from the mounting strip. Electric push rods are fixed to the inner sides of the multiple L-shaped plates. Pressure strips are fixed to the electric push rods. The pressure strips can press the side of the covering cloth between the pressure strips and the waterproof sheet.

[0022] By adopting the above technical solution, the side of the shielding cloth is pressed between the pressure strip plate and the waterproof plate by the electric push rod, which can prevent water from entering the surface of the busbar unit from the side of the shielding cloth, thereby slowing down the corrosion of the metal on the surface of the busbar unit and improving the service life of the busbar unit.

[0023] Optionally, the expansion bolts are installed on the side of the mounting strip closest to the busbar unit, and the waterproof plate is installed on the side of the mounting strip away from the mounting strip. A vertical strip is fixed between the expansion bolts and the waterproof plate.

[0024] By adopting the above technical solution, when fixing the waterproof membrane, one side of the waterproof membrane is pressed against the wall and the other side is pressed against the side of the vertical strip, which facilitates the installation of the waterproof membrane.

[0025] Optionally, multiple U-shaped frames are fixed to the outer side of the waterproof membrane from top to bottom.

[0026] By adopting the above technical solution, the U-shaped plate can prevent the shielding cloth from entering the gap between the busbar unit and the vertical plate, thus facilitating the removal of the shielding cloth.

[0027] In summary, the beneficial effects of this application are as follows:

[0028] 1. A shielding cloth is installed on the outside of the bus trunking unit. The shielding cloth can block the dust of the bus trunking unit, so that the dust adheres to the shielding cloth. When cleaning the dust, you only need to remove the shielding cloth and wash it on the ground. This reduces the time that workers spend working at heights and improves the safety of dust cleaning.

[0029] 2. By using a waterproof shielding cloth, water can be minimized from penetrating the shielding cloth and entering the surface of the busbar trunking unit, thereby slowing down the corrosion of the metal on the surface of the busbar trunking unit and extending the service life of the busbar trunking unit.

[0030] 3. The U-shaped plate design prevents the shielding cloth from entering the gap between the busbar unit and the vertical strip plate, thus facilitating the removal of the shielding cloth. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the structure after the shielding cloth of this application has been installed;

[0032] Figure 2This application is a schematic diagram showing the structure between the shielding cloth and the busbar unit;

[0033] Figure 3 This is a schematic diagram of the connection structure between the folded edge and the pressure strip in this application.

[0034] Figure 4 This is a schematic diagram of the connection structure between the connector and the shielding cloth in this application.

[0035] Figure 5 This is a schematic diagram of the structure of the shielding cloth at the shielding strip in this application.

[0036] Explanation of reference numerals in the attached drawings: 1. Connecting seat; 11. Hook; 111. Limiting groove; 2. Busbar unit; 21. Mounting strip; 211. Vertical strip; 22. Expansion bolt; 3. Covering cloth; 31. Ring; 32. Covering strip; 321. First Velcro; 33. Second Velcro; 34. Folded edge; 35. Elastic strip; 36. Fabric strip; 4. Zipper; 5. Limiting component; 51. Mounting box; 52. Limiting strip; 53. Hand lever; 54. Hand lever end; 55. Spring; 6. Waterproof plate; 61. L-shaped plate; 62. Electric push rod; 63. U-shaped plate; 7. Pressure strip plate. Detailed Implementation

[0037] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0038] Reference Figure 1 and 2 A densely insulated busbar trunking system includes a busbar trunking unit 2, a connecting seat 1, and a shielding cloth 3. Multiple busbar trunking units 2 are provided, and the multiple busbar trunking units are fixed by the connecting seat 1. The shielding cloth 3 is located on the outside of the busbar trunking and is used to shield the surface of the busbar trunking unit 2 from dust.

[0039] Reference Figure 1 , Figure 2 and Figure 3 The length of the shielding cloth 3 is the same as the length of the busbar unit 2. Folded edges 34 are provided on both opposite sides of the shielding cloth 3, and the folded edges 34 are bonded and fixed to the shielding cloth 3. Elastic strips 35 are filled inside the folded edges 34. In this embodiment, the elastic strips 35 are made of synthetic rubber. The shielding cloth 3 is made of waterproof fabric. The waterproof fabric can be any one of waterproof canvas, microfiber insulation cotton, PVC coated fabric, or waterproof nylon fabric. In this embodiment, waterproof canvas is used. Waterproof canvas not only has excellent waterproof performance but also excellent moisture-proof and antifreeze performance, expanding the application range of the shielding cloth 3.

[0040] Reference Figure 1 , Figure 2 and Figure 4The shielding cloth 3 is fixed to the upper part of the side face near the busbar unit 2 by a cloth strip 36. One end of the cloth strip 36 is glued to the inner side of the shielding cloth 3, and the other end is wrapped around the ring 31, with the end of the cloth strip 36 sewn to the cloth body. Hooks 11 are fixed on the three adjacent sides of the connecting seat 1. The longitudinal cross-section of the hook 11 is U-shaped. A limiting groove 111 is opened on the outer side of the end of the hook 11 near the connecting seat 1. A limiting component 5 is provided on the end of the hook 11 away from the connecting seat 1.

[0041] Reference Figure 1 , Figure 2 and Figure 4 The limiting component 5 includes a mounting box 51 and a limiting strip 52. The mounting box 51 is fixed to the end of the hook 11 facing away from the connecting seat 1. The end of the mounting box 51 is positioned facing the limiting groove 111 on the hook 11, and the upper ends of the mounting box 51 and the hook 11 near the connecting seat 1 are spaced apart. The gap between the upper ends of the mounting box 51 and the hook 11 near the connecting seat 1 is greater than the difference between the outer diameter and the inner diameter of the ring 31. The limiting strip 52 is slidably connected to the end of the mounting box 51 near the connecting seat 1. The limiting strip 52 is positioned opposite to the limiting groove 111, and the shape of the limiting strip 52 matches the shape of the limiting groove 111. In this embodiment, the cross-sectional shape of the limiting groove 111 and the limiting hole is circular. The end of the limiting strip 52 facing away from the connecting seat 1 is located inside the mounting box 51, and a pull rod 53 is fixed to the end of the limiting strip 52 facing away from the connecting seat 1. The pull rod 53 extends out of the mounting box 51 at one end away from the limiting strip 52, and a pull end 54 is fixed to the other end of the pull rod 53 outside the mounting box 51. A spring 55 is partially sleeved inside the mounting box 51, with one end of the spring 55 abutting against the inner wall of the mounting box 51 and the other end abutting against the end of the limiting strip 52. After the limiting strip 52 extends into the limiting groove 111, the spring 55 is in a compressed state. By using the elastic force of the spring 55 to install the limiting strip 52 in the limiting groove 111, the upper port of the hook 11 can be sealed.

[0042] Reference Figure 1 , Figure 2 and Figure 4 After the busbar unit 2 and the connecting seat 1 are installed on the wall, pull the pull end 54 on the outside of the mounting box 51. The limiting strip 52 disengages from the limiting groove 111, and the limiting ring on the shielding cloth 3 is installed in the hook 11, thus loosening the busbar unit 2. This allows the ring 31 to be fixed on the hook 11, thereby fixing the shielding cloth 3 to the connecting seat 1, achieving pre-fixation of the shielding cloth 3.

[0043] Reference Figure 1 , Figure 2 and Figure 5Adjacent shielding fabrics 3 are connected by zippers 4. A shielding strip 32, made of the same material as the shielding fabric 3, is glued and fixed to the bottom of the shielding fabric 3 above the zipper 4. After adjacent shielding fabrics 3 are fixed by the zipper 4, the shielding strip 32 on the upper shielding fabric 3 extends to the lower shielding fabric 3, thus preventing external water from flowing into the shielding fabric 3 through the zipper 4, thereby better protecting the busbar unit 2 from damage by external water. A first Velcro 321 is fixed to the lower inner side of the shielding strip 32, and a second Velcro 33 is fixed to the lower side of the upper zipper 4 of the shielding fabric 3. The first Velcro 321 and the second Velcro 33, through their fixation, can prevent the shielding strip 32 from detaching from the shielding fabric 3 as much as possible, thereby improving the water-blocking performance of the shielding strip 32.

[0044] Reference Figure 1 and Figure 2 The busbar unit 2 has mounting plates 21 fixed to its opposite side walls, and these mounting plates are secured to the walls with expansion bolts 22. A vertical strip 211 is welded to the middle of the side of the mounting plate 21 facing away from the wall. The expansion bolts 22 are installed between the busbar unit 2 and the vertical strip 211. A waterproof sheet 6 is fixed to the outside of the vertical strip 211 using fixing bolts. The waterproof sheet 6 is made of polyvinyl chloride (PVC). PVC has a low density, making it easy for workers to remove the waterproof sheet 6 and clean the dust from it. The waterproof sheet 6 is L-shaped. During installation, the side of the waterproof sheet 6 closest to the busbar abuts against the vertical strip 211, facilitating its fixation with the fixing bolts. Simultaneously, the other side of the waterproof sheet 6 abuts against the wall, reducing water seepage into the inside of the busbar unit 2.

[0045] Reference Figure 1 and Figure 2 Multiple U-shaped plates 63 arranged from top to bottom are provided between the two waterproof plates 6. The U-shaped plates 63 are staggered with the fixing bolts. The two ends of the U-shaped plates 63 are respectively glued and fixed to the waterproof plates 6. The arrangement of the U-shaped plates 63 can prevent the shielding cloth 3 from entering the gap between the busbar unit 2 and the vertical strip plate 211, thereby facilitating the removal of the shielding cloth 3.

[0046] Reference Figure 1 and Figure 2Multiple L-shaped plates 61, arranged from top to bottom, are fixed to the outer side of the waterproof membrane 6. The openings of the L-shaped plates 61 face the busbar unit 2. Electric push rods 62 are fixed to the inner sides of each L-shaped plate 61, and the telescopic ends of the electric push rods 62 are fixed to the same pressure strip plate. The pressure strip plate is made of the same material as the waterproof membrane 6. After the shielding cloth 3 is pre-fixed, both sides of the shielding cloth 3 are placed inside the pressure strip plate. The pressure strip plate is pressed onto the sides of the shielding cloth 3 by the electric push rods 62, thus fixing the shielding cloth 3 to the waterproof membrane 6. This reduces water ingress into the surface of the busbar unit 2, thereby slowing down metal corrosion on the surface of the busbar unit 2 and extending its service life.

[0047] The implementation principle of this application is as follows: After the busbar unit 2 is installed on the wall, the waterproof membrane 6 is installed to the mounting strip 21 on the busbar unit 2 using fixing bolts. After the waterproof membrane 6 is installed, the cover cloth 3 is fixed to the connecting seat 1 using the hook 11 on the connecting seat 1 and the ring 31 on the cover cloth 3, thus achieving pre-fixation of the cover cloth 3. The two sides of the cover cloth 3 are placed between the waterproof membrane 6 and the pressure strip, and the adjacent cover cloths 3 are fixed by the zipper 4. The cover cloth 3 is then pressed against the outside of the waterproof membrane 6 by the electric push rod 62, thus achieving fixation of the cover cloth 3. After long-term use, when it is necessary to clean the dust, the cover cloth 3 and the waterproof membrane 6 can be removed for cleaning. The cover cloth 3 can be washed on the ground, reducing the time that workers spend working at heights and improving the safety of dust cleaning.

[0048] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A densely insulated busbar trunking system, comprising multiple busbar trunking units (2) connected by connecting seats (1), wherein the busbar trunking units (2) are fixed to a wall, characterized in that: The connecting seat (1) is detachably connected to a shielding cloth (3), which can cover the busbar unit (2) inside. Adjacent shielding cloths (3) are detachably connected by zippers (4). The busbar unit (2) is fixed with an installation strip (21) on the outside, and the installation strip (21) is fixed to the wall by expansion bolts (22); The connecting seat (1) is provided with multiple hooks (11) on its outer circumference, and a ring (31) is fixed on the shielding cloth (3), and the ring (31) is hung on the hook (11); A waterproof plate (6) is detachably connected to the mounting strip (21). The inner side of the waterproof plate (6) is in contact with the wall. Multiple L-shaped plates (61) are fixed to the outer side of the waterproof plate (6) away from the mounting strip (21). Electric push rods (62) are fixed to the inner side of the multiple L-shaped plates (61). A pressure strip (7) is fixed to the electric push rod (62). The pressure strip (7) can press the side of the covering cloth (3) between the pressure strip (7) and the waterproof plate (6).

2. The densely insulated busbar trunking according to claim 1, characterized in that: A limiting groove (111) is provided on the outer side of the end of the hook (1) near the connecting seat (1). A limiting component (5) is provided on the head of the end of the hook (11) away from the connecting seat (1). The limiting component (5) includes a mounting box (51) and a limiting strip (52). The mounting box (51) is fixed to the end of the hook (11) away from the connecting seat (1). The limiting strip (52) is slidably connected to the end of the mounting box (51) near the connecting seat (1). The limit bar (52) can be inserted into the limiting groove (111). A pull rod (53) is fixed at one end of the limit bar (52) away from the connecting seat (1). The pull rod (53) passes through the end face of the mounting box (51). A pull end (54) is fixed on the outside of the mounting box (51). A spring (55) is sleeved on the part of the pull rod (53) inside the mounting box (51). One end of the spring (55) abuts against the end face of the limit bar (52), and the other end abuts against the inner wall of the mounting box (51).

3. The densely insulated busbar trunking according to claim 1, characterized in that: The covering cloth (3) is configured as a waterproof cloth.

4. The densely insulated busbar trunking according to claim 3, characterized in that: The bottom end of the covering cloth (3) is fixed with a covering strip (32) above the zipper (4), and the covering strip (32) covers the outside of the zipper (4).

5. The densely insulated busbar trunking according to claim 4, characterized in that: The lower inner side of the shielding strip (32) is fixed with a first Velcro (321), and the upper side of the shielding cloth (3) is fixed with a second Velcro (33). The first Velcro (321) on the shielding strip (32) can stick to the second Velcro (33) on the shielding cloth (3).

6. The densely insulated busbar trunking according to claim 1, characterized in that: The expansion bolt (22) is installed on the side of the mounting strip (21) near the busbar unit (2), and the waterproof plate (6) is installed on the side of the mounting strip (21) away from the mounting strip (21). A vertical strip (211) is fixed between the expansion bolt (22) and the waterproof plate (6) on the mounting strip (21).

7. A densely insulated busbar trunking system according to claim 6, characterized in that: Multiple U-shaped plates (63) are fixed from top to bottom on the outer side of the waterproof membrane (6).

Citation Information

Patent Citations

  • Bus duct with dustproof function

    CN216016390U

  • Bus duct convenient for dust prevention

    CN216751114U