Modular intelligent bus duct capable of being suspended and prevented from falling at high altitude and installation method thereof

Abstract

This invention relates to the field of power distribution equipment technology, and more particularly to a modular intelligent busbar trunking with high-altitude suspension and anti-fall protection, and its installation method. The invention includes a busbar trunking body, with an anti-fall component adapted to a suspension rod installed on one side of the upper end of the busbar trunking body. The anti-fall component includes a main board, with sub-plates installed at both ends of the main board via connecting units. A locking unit is installed inside the sub-plates. Each sub-plate includes a limiting plate, with through holes and transverse holes inside. The upper edge of the through hole is arc-shaped, and an integrally formed anti-slip pad is fixedly connected to the arc-shaped surface of the through hole. Sliding grooves are formed on both the upper and lower sides of the transverse holes near the through hole. In this invention, by setting an anti-fall component with arc-shaped through holes and anti-slip pads at the upper end of the busbar trunking body, and integrating an automatic locking unit consisting of a control shaft, sliding column, and damping pad between the main board and sub-plates, a dual protection effect of "no interference during normal suspension, and friction followed by locking in case of accidental fall" is achieved.

Description

Technical Field

[0001] This invention relates to a modular intelligent busbar trunking system with anti-fall protection for high-altitude air conditioning units and its installation method, belonging to the field of power distribution equipment technology. Background Technology

[0002] Existing high-altitude installations of busbar trunking commonly employ single-nut support hangers, where a single nut at the bottom of the hanger supports the bottom bracket or crossarm, with the busbar trunking resting directly on the crossarm. This method relies solely on the thread friction between the nut and the hanger for load-bearing capacity and often lacks a secondary fall protection device independent of the main suspension system. During long-term operation, due to equipment vibration, thermal expansion and contraction, or the absence of nut anti-loosening measures, frequent malfunctions occur, such as nut loosening, weld cracking of the support frame, or bolt detachment. Current technology cannot automatically provide locking protection at the moment of a fall, leading to numerous accidents where the entire busbar trunking system collapses.

[0003] During the high-altitude suspension of modular intelligent busbar trunking, the busbar trunking may fall from a height if the connecting nut between the boom and the bottom bracket comes loose unexpectedly, the bottom bracket disintegrates, or the locking buckle fails. Existing designs lack mechanical devices to automatically slow the descent in the initial stage and lock the boom during the fall, failing to prevent energized heavy objects from directly impacting personnel or equipment on the ground. Furthermore, the fall may break the junction box, causing a short circuit and arcing, potentially leading to fire or secondary electrical accidents. Therefore, there is an urgent need to improve a modular intelligent busbar trunking system with fall prevention capabilities and its installation method to address these problems. Summary of the Invention

[0004] The purpose of this invention is to provide a modular intelligent busbar trunking system with high-altitude air-conditioning suspension and its installation method, in order to solve the problem that when the connecting nut between the boom and the bottom bracket accidentally comes loose, the bottom bracket disintegrates, or the locking buckle fails during the high-altitude air-conditioning suspension of the modular intelligent busbar trunking, the busbar trunking will fall from a height. Existing designs lack mechanical devices to automatically slow down the falling speed in the initial stage of the fall and lock the boom during the fall, which cannot prevent the charged heavy object from directly hitting the ground personnel or equipment. At the same time, the fall may break the plug box, causing short circuits and arcing, leading to fires or secondary electrical accidents.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A modular intelligent busbar trunking system with height-adjustable suspension and fall prevention, and its installation method, includes a busbar trunking body. A fall prevention component for compatibility with a suspension rod is installed on one side of the upper end of the busbar trunking body. The fall prevention component includes a main board, with sub-plates installed at both ends of the main board via connecting units. A locking unit is installed inside the sub-plates. Each sub-plate includes a limiting plate, with through holes and transverse holes inside. The upper edge of the through hole is arc-shaped, and an integrally formed anti-slip pad is fixedly connected to the arc-shaped surface of the through hole. Sliding grooves are provided on both the upper and lower sides of the transverse holes near the through hole.

[0007] Furthermore, the perforation and the transverse hole are connected, and the transverse hole has a T-shaped transverse projection of its vertical cross-section.

[0008] Furthermore, a bottom bracket is installed at the lower end of the busbar trunking body for supporting the bottom of the busbar trunking body during hoisting. Two locking buckles are installed at the upper end of the bottom bracket for positioning between the busbar trunking body and the bottom bracket. Both locking buckles are fixedly connected to the bottom bracket by screws. Both ends of the bottom bracket are bolted with lifting rods.

[0009] Furthermore, the connecting unit includes a fixed base, one end of which is welded and fixed with a control shaft, and the end of the control shaft away from the fixed base is provided with a blind hole, with control columns fixedly connected to both the upper and lower sides of one end of the blind hole.

[0010] Furthermore, the fixed base is fixedly connected to the main board, the fixed base is coaxially arranged with the control shaft, and the control shaft is rotatably connected to the limiting plate body through a transverse hole.

[0011] Furthermore, the locking unit includes a sliding column, one end of which is fixedly connected to a damping pad, and arc-shaped grooves are provided on one side of both the upper and lower ends of the sliding column, while sliders are fixedly connected to the other side of the upper and lower ends of the sliding column.

[0012] Furthermore, the sliding column and the damping pad are coaxially arranged, and the slider is slidably connected to the limiting plate through a sliding groove.

[0013] Furthermore, a control column block is installed inside the arc-shaped groove, and the edge of the end face of the control column block facing the bottom of the arc-shaped groove is arc-shaped.

[0014] Furthermore, a portion of the sliding post is disposed inside the control shaft, and the portion of the sliding post disposed inside the control shaft is rotatably connected to the control shaft through a blind hole.

[0015] Furthermore, it includes the following steps:

[0016] Step 1: Install the busbar trunking body to the desired location using the bottom bracket, locking buckle, hanger, and fall arrestor;

[0017] Step 2: During the installation of the fall arrestor assembly, pass the through hole inside the limit plate through the position of the suspension rod to complete the connection;

[0018] Step 3: During the installation of the bottom bracket, connect and fix the bottom bracket to the busbar body using locking clips, and then connect and fix both sides of the bottom bracket to the bottom of the hanger to complete the installation;

[0019] Step 4: If the hanger and bottom bracket separate due to external factors, or during the disassembly and maintenance of the busbar trunking body, the busbar trunking body will tilt when it falls. At this time, the hanger will contact the anti-slip point set on the edge of the perforation to slow down the falling speed and prevent it from falling.

[0020] At the same time, the sub-board and the main board rotate relative to each other. During the relative rotation, the control shaft and the sliding column rotate relative to each other. The control column block pushes the end of the sliding column with the damping pad installed into the perforation through the arc groove, and contacts and locks it with the hanger.

[0021] Compared with the prior art, the beneficial effects of the present invention are:

[0022] This invention achieves a dual protection effect: "no interference during normal suspension, and automatic locking after friction during accidental fall" by setting an anti-fall component with arc-shaped perforations and anti-slip pads on the upper end of the busbar trunking body, and integrating an automatic locking unit consisting of a control shaft, sliding column, and damping pads between the main board and the sub-board. When the busbar trunking tilts and falls, the sub-board rotates relative to the main board, and the control column drives the sliding column to press the damping pads against the surface of the hanger rod, generating sufficient clamping force to stop the fall. At the same time, the bottom bracket and locking buckle provide an independent main load-bearing path. The overall structure is compact, requires no external power, and has a fast response speed, significantly improving the fall protection safety of intelligent busbar trunking installed at high altitudes. It is also applicable to hanger rods of various specifications and has good engineering promotion value. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 For the present invention Figure 1 Enlarged structural diagram at point A in the middle;

[0025] Figure 3 This is a schematic diagram of the fall protection component structure of the present invention;

[0026] Figure 4 For the present invention Figure 2Enlarged structural diagram at point B;

[0027] Figure 5 This is a schematic diagram of the sub-plate structure of the present invention;

[0028] Figure 6 This is a cross-sectional view of the sub-plate of the present invention;

[0029] Figure 7 This is a schematic diagram of the connection unit structure of the present invention;

[0030] Figure 8 This is a schematic diagram of the locking unit structure of the present invention;

[0031] Figure 9 This is a schematic diagram of the location structure of the arc-shaped groove in this invention;

[0032] Figure 10 This is a top view of the overall fall protection component of the present invention.

[0033] In the diagram, 1. Busbar trunking body; 2. Bottom bracket; 3. Locking buckle; 4. Hanger rod;

[0034] 5. Fall protection components; 51. Mainboard;

[0035] 52. Sub-plate; 521. Limiting plate; 522. Perforation; 523. Anti-slip pad; 524. Horizontal hole; 525. Slide groove;

[0036] 53. Connecting unit; 531. Fixing base; 532. Control shaft; 533. Blind hole; 534. Control column block;

[0037] 54. Locking unit; 541. Sliding column; 542. Damping pad; 543. Slider; 544. Arc groove. Detailed Implementation

[0038] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0039] like Figures 1-10As shown, this embodiment provides a modular intelligent busbar trunking with height-suspended anti-fall protection and its installation method, including a busbar trunking body 1. An anti-fall component 5 for compatibility with a suspension rod 4 is installed on one side of the upper end of the busbar trunking body 1. The anti-fall component 5 includes a main board 51, with secondary boards 52 installed at both ends of the main board 51 via connecting units 53. A locking unit 54 is installed inside the secondary board 52. The secondary board 52 includes a limiting plate 521, with a through hole 522 and a transverse hole 524 inside. The upper edge of the through hole 522 is arc-shaped. The perforated 522 has an arc-shaped surface with an integrally formed anti-slip pad 523 fixedly connected. The horizontal hole 524 has grooves 525 on both the upper and lower sides near the end of the perforated 522. This anti-fall component is directly compatible with the boom without changing the original boom structure. The arc-shaped design of the perforation edge, together with the anti-slip pad, can increase the friction with the boom and slow down the fall speed when the busbar trunking falls accidentally. At the same time, the locking unit integrated in the sub-plate can be automatically triggered when the fall is tilted, realizing the dual protection of "first friction to slow down, then locking to stop", effectively preventing live heavy objects from falling directly.

[0040] In one possible embodiment, the through hole 522 and the transverse hole 524 are connected. The transverse projection of the vertical section of the transverse hole 524 is T-shaped. The T-shaped cross section allows the control shaft in the connecting unit to be stably embedded and not dislodged. At the same time, it provides guiding space for the sliding column of the locking unit, ensuring that the components move in a coordinated manner when the busbar is tilted. This ensures both structural compactness and improved reliability of triggering the locking action.

[0041] In one possible embodiment, a bottom bracket 2 is installed at the lower end of the busbar trunking body 1 to support the bottom of the busbar trunking body 1 during hoisting. Two locking buckles 3 are installed at the upper end of the bottom bracket 2 for positioning between the busbar trunking body 1 and the bottom bracket 2. Both locking buckles 3 are fixedly connected to the bottom bracket 2 by screws. Both ends of the bottom bracket 2 are bolted with lifting rods 4. The bottom bracket and locking buckles constitute a main load-bearing system independent of the fall protection components. During installation, the busbar trunking is first quickly positioned and locked by the buckles, and then connected to the top structure by the lifting rods. This layered design makes the load-bearing capacity clear under normal working conditions, and when the lifting rods or the bottom bracket fail unexpectedly, the fall protection components above can still function without interfering with each other.

[0042] In one possible embodiment, the connecting unit 53 includes a fixed base 531, a control shaft 532 is welded and fixed to one end of the fixed base 531, and a blind hole 533 is opened at the end of the control shaft 532 away from the fixed base 531. Control blocks 534 are fixedly connected to the upper and lower sides of one end of the blind hole 533. The connecting unit is reliably welded to the main board through the fixed base, and the control shaft extends into the transverse hole of the sub-board to achieve rotational connection. The control block in the blind hole acts as a driving element for triggering locking, and can convert the rotational motion into the linear motion of the locking unit when the sub-board rotates relative to the main board. The structure is simple, the response is sensitive, and no additional sensors or power source are required.

[0043] In one possible embodiment, the fixed base 531 is fixedly connected to the main board 51, and the fixed base 531 is coaxially arranged with the control shaft 532. The control shaft 532 is rotatably connected to the limiting plate 521 through the transverse hole 524. The coaxiality ensures the centering of the control shaft during rotation and avoids jamming. The rotatable connection between the control shaft and the limiting plate allows the sub-plate to deflect freely around the control shaft, thereby adaptively adjusting the angle when the busbar is tilted, ensuring that the anti-slip pad always presses against the hanger and triggers locking.

[0044] In one possible embodiment, the locking unit 54 includes a sliding column 541, with a damping pad 542 fixedly connected to one end of the sliding column 541. Arc-shaped grooves 544 are provided on one side of both the upper and lower ends of the sliding column 541, and sliders 543 are fixedly connected to the other side of the upper and lower ends of the sliding column 541. The arc-shaped grooves on the sliding column are used to receive the driving force of the control column block. The slider cooperates with the sliding groove of the sub-plate to ensure that the sliding column moves in a straight line. When locked, the damping pad directly presses against the surface of the suspension rod, providing high frictional clamping force. The overall structure achieves automatic mechanical locking of "under tilting force → sliding column extension → damping pad pressing," with reliable response and no need for manual intervention.

[0045] In one possible embodiment, the sliding column 541 and the damping pad 542 are coaxially arranged, and the slider 543 is slidably connected to the limiting plate 521 through the sliding groove 525. The coaxiality ensures that the damping pad is evenly in contact with the hanger, avoiding uneven wear that could lead to locking failure. The sliding connection between the slider and the sliding groove limits the degree of freedom of movement of the sliding column, allowing it to move only radially along the perforation, thereby generating a stable positive pressure when locked, effectively preventing the busbar trough from falling further.

[0046] In one possible embodiment, a control block 534 is installed inside the arc-shaped groove 544. The edge of the end face of the control block 534 facing the bottom of the arc-shaped groove 544 is arc-shaped. The arc-shaped design of the end face of the control block greatly reduces the sliding friction with the bottom of the arc-shaped groove, so that when the sub-board and the main board rotate relative to each other, the control block can smoothly push the sliding column along the arc-shaped groove, avoiding jamming or wear. This optimization improves the sensitivity of the lock-up trigger and the long-term reliability.

[0047] In one possible embodiment, a portion of the sliding column 541 is disposed inside the control shaft 532, and the portion of the sliding column 541 disposed inside the control shaft 532 is rotatably connected to the control shaft 532 through a blind hole 533. The sliding column portion is concealed within the central blind hole of the control shaft, which saves space and allows the control shaft to both drive the sliding column to rotate together and allow the two to slide relative to each other along the axial direction. This nested design achieves decoupling of rotary drive and linear motion, resulting in a compact structure, reliable operation, and ease of modular manufacturing and assembly.

[0048] like Figures 1-10 As shown in the figure, the principle of the modular intelligent busbar trunking with high-altitude air conditioning suspension and anti-fall device and its installation method provided in this embodiment is as follows:

[0049] Includes the following steps:

[0050] Step 1: Install the busbar trunking body 1 to the desired location using the bottom bracket 2, locking buckle 3, hanging rod 4, and anti-fall component 5;

[0051] Step 2: During the installation of the fall arrestor component 5, the through hole 522 inside the limiting plate 521 is passed through the position of the hanging rod 4 to complete the connection;

[0052] Step 3: During the installation of the bottom bracket 2, the bottom bracket 2 is connected and fixed to the busbar body 1 through the locking buckle 3. Then, the two sides of the bottom bracket 2 are connected and fixed to the bottom of the hanger 4 to complete the installation.

[0053] Step 4: When the hanger 4 and the bottom bracket 2 separate due to external factors, or during the disassembly and maintenance of the busbar trunking body 1, when the busbar trunking body 1 falls, the busbar trunking body 1 will tilt. At this time, the hanger 4 will contact the anti-slip point 523 set on the edge side of the perforation 522 to slow down the falling speed and prevent it from falling.

[0054] At the same time, the sub-plate 52 and the main plate 51 rotate relative to each other. During the relative rotation, the control shaft 532 and the sliding column 541 rotate relative to each other. The control column block 534 pushes the end of the sliding column 541 with the damping pad 542 installed on it into the through hole 522 through the arc groove 544, and contacts and locks it with the hanger 4.

[0055] First, install the fall arrestor component by inserting it through the hole into the boom, and then install the bottom bracket as the main load-bearing structure. During normal operation, the boom and the bottom bracket bear the load, and the fall arrestor component is in a ready-to-trigger state. In the event of a fall, the tilt of the busbar will sequentially trigger the anti-slip pad friction deceleration and the locking unit to automatically lock the boom, forming a progressive fall arrestor system of "first damping and delaying, then mechanical locking". It is also suitable for accidental fall arrest scenarios during disassembly and maintenance, greatly improving operational safety.

[0056] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0057] 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 modular intelligent busbar trunking system with high-altitude air conditioning suspension and fall prevention, comprising a busbar trunking body (1), characterized in that: The upper side of the busbar trunking body (1) is equipped with a fall protection component (5) that is compatible with the boom (4); The fall arrestor (5) includes a main board (51), and a secondary board (52) is installed at both ends of the main board (51) through a connecting unit (53). A locking unit (54) is installed inside the secondary board (52). The sub-plate (52) includes a limiting plate body (521). The limiting plate body (521) has a through hole (522) and a transverse hole (524) inside. The upper edge of the through hole (522) is arc-shaped. An integrally formed anti-slip pad (523) is fixedly connected to the arc-shaped surface of the through hole (522). The transverse hole (524) has a sliding groove (525) on both the upper and lower sides of the end near the through hole (522).

2. The modular intelligent busbar trunking with high-altitude air-conditioning suspension and fall prevention as described in claim 1, characterized in that: The perforation (522) and the transverse hole (524) are connected, and the transverse projection of the vertical section of the transverse hole (524) is T-shaped.

3. The modular intelligent busbar trunking with high-altitude air-conditioning suspension and fall prevention as described in claim 1, characterized in that: The lower end of the busbar trunking body (1) is equipped with a bottom bracket (2) for supporting the bottom of the busbar trunking body (1) during hoisting. The upper end of the bottom bracket (2) is equipped with two locking buckles (3) for positioning between the busbar trunking body (1) and the bottom bracket (2). Both locking buckles (3) are fixedly connected to the bottom bracket (2) by screws. Both ends of the bottom bracket (2) are equipped with lifting rods (4) by bolts.

4. The modular intelligent busbar trunking with high-altitude air-conditioning suspension and fall prevention as described in claim 1, characterized in that: The connecting unit (53) includes a fixed base (531), a control shaft (532) is welded and fixed at one end of the fixed base (531), a blind hole (533) is provided at the end of the control shaft (532) away from the fixed base (531), and control blocks (534) are fixedly connected to the upper and lower sides of one end of the blind hole (533).

5. A modular intelligent busbar trunking system with high-altitude air conditioning suspension and fall prevention as described in claim 4, characterized in that: The fixed base (531) is fixedly connected to the main board (51), the fixed base (531) and the control shaft (532) are coaxially arranged, and the control shaft (532) is rotatably connected to the limiting plate (521) through the transverse hole (524).

6. A modular intelligent busbar trunking system with high-altitude air conditioning suspension and fall prevention as described in claim 1, characterized in that: The locking unit (54) includes a sliding column (541), one end of which is fixedly connected to a damping pad (542), and an arc-shaped groove (544) is provided on one side of the upper and lower ends of the sliding column (541), and a slider (543) is fixedly connected to the other side of the upper and lower ends of the sliding column (541).

7. A modular intelligent busbar trunking system with high-altitude air conditioning suspension and fall prevention as described in claim 6, characterized in that: The sliding column (541) and the damping pad (542) are coaxially arranged, and the slider (543) is slidably connected to the limiting plate (521) through the sliding groove (525).

8. A modular intelligent busbar trunking system with high-altitude air conditioning suspension and fall prevention as described in claim 6, characterized in that: A control block (534) is installed inside the arc-shaped groove (544), and the edge of the end face of the control block (534) facing the bottom of the arc-shaped groove (544) is arc-shaped.

9. A modular intelligent busbar trunking system with high-altitude air conditioning suspension and fall prevention as described in claim 6, characterized in that: A portion of the sliding column (541) is disposed inside the control shaft (532), and the portion of the sliding column (541) disposed inside the control shaft (532) is rotatably connected to the control shaft (532) through a blind hole (533).

10. An installation method for a modular intelligent busbar trunking system with anti-fall protection based on any one of claims 1-9, characterized in that: Includes the following steps: Step 1: Install the busbar trunking body (1) to the desired location using the bottom bracket (2), locking buckle (3), hanging rod (4) and anti-fall assembly (5); Step 2: During the installation of the fall arrestor assembly (5), the through hole (522) inside the limiting plate (521) is passed through the position of the hanging rod (4) to complete the connection; Step 3: During the installation of the bottom bracket (2), the bottom bracket (2) is connected and fixed to the busbar body (1) through the locking buckle (3), and then the two sides of the bottom bracket (2) are connected and fixed to the bottom of the hanger (4) to complete the installation; Step 4: When the hanger (4) and the bottom bracket (2) separate due to external factors, or during the disassembly and maintenance of the busbar trunking body (1), when the busbar trunking body (1) falls, the busbar trunking body (1) will tilt. At this time, the hanger (4) will contact the anti-slip point (523) set on the edge of the perforation (522), which will slow down the falling speed and prevent it from falling. At the same time, the sub-plate (52) and the main plate (51) rotate relative to each other. During the relative rotation, the control shaft (532) and the sliding column (541) rotate relative to each other. The control column block (534) pushes the end of the sliding column (541) with the damping pad (542) installed into the perforation (522) through the arc groove (544) and contacts and locks the rod (4).

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