Bus duct structure and installation method thereof

Abstract

The invention relates to the technical field of power transmission equipment, and provides a bus duct structure aiming at the situation that a traditional bus installer is difficult to install, the bus duct structure comprises a plurality of bus duct units, the bottom of each bus duct unit is provided with a plurality of hanging brackets in a supporting mode, each hanging bracket comprises a supporting rod, and the two ends of each supporting rod are vertically connected with hanging rods; the bus duct units abut against the supporting rods, and the supporting rods are connected with the bus duct units through connecting pieces. The adjacent bus duct units are connected through a bus connector, a positioning sleeve is further arranged between the adjacent bus duct units, and the two ends of the positioning sleeve are connected to the close ends of the adjacent bus duct units in a sleeving mode respectively. The bus duct has the effect of facilitating the installation of the bus connector between adjacent bus duct units.

Description

Technical Field

[0001] This application relates to the field of power transmission equipment, and in particular to a busbar trunking structure and an installation method thereof. Background Art

[0002] As an efficient power transmission device, the busbar trunking is widely used in high-rise buildings, factory workshops and other places to undertake power distribution and transmission.

[0003] In the related art, the busbar trunking structure is usually composed of multiple busbar trunking units spliced together, and the conductive plates at the similar ends of adjacent busbar trunking segments rely on busbar connectors to achieve stable connection.

[0004] During the actual installation and construction of the busbar trunking structure, it is necessary to first fix the busbar trunking units at the preset positions through hanging brackets, and then install busbar connectors at the similar ends of adjacent busbar trunking units. When installing the busbar connectors, it is necessary to first embed the conductive bars at the ends of adjacent busbar trunking units into the gaps between the same adjacent conductive copper bars of the busbar connectors, and make the conductive bars at the similar ends of adjacent busbar trunking units closely abut against the same conductive copper bar to ensure the connection stability.

[0005] During the actual installation process, in order to install the busbar connectors smoothly, it is necessary for the operator to repeatedly adjust the positions of adjacent busbar trunking units to ensure the precise docking of the conductive bars of adjacent busbar trunking units. The overall operation is relatively cumbersome and the efficiency is low. Therefore, there is room for improvement. Summary of the Invention

[0006] In order to facilitate the installation and connection of busbar connectors between adjacent busbar trunking units, this application provides a busbar trunking structure and an installation method thereof.

[0007] A busbar trunking structure and an installation method thereof provided by this application adopt the following technical solutions: A busbar trunking structure includes a plurality of busbar trunking units. A plurality of hanging brackets are provided at the bottom of each busbar trunking unit. The hanging brackets include support rods, and vertical suspender rods are connected to both ends of each support rod. Each busbar trunking unit abuts against the support rod, and the support rod is connected to the busbar trunking unit through a connecting member. The similar ends of adjacent busbar trunking units are connected through a busbar connector, and a positioning sleeve is further provided between adjacent busbar trunking units. The two ends of the positioning sleeve are respectively sleeved on the similar ends of adjacent busbar trunking units.

[0008] By adopting the above technical solution, when installing the busbar trunking structure, the positioning sleeve is sleeved on one end of the busbar trunking in advance. After placing two adjacent busbar trunking units on the corresponding hanging brackets, by sliding the positioning sleeve located at the end of the busbar trunking, so that its two ends are respectively sleeved on the adjacent ends of the adjacent busbar trunking units, the conductive sheets at the ends of the adjacent busbar trunking units are quickly aligned and positioned. Further, after fixing the positioned busbar trunking on the support rod of the hanging bracket through the connecting piece, the positioning sleeve is moved back to the end of one busbar trunking. After installing the busbar connector on the adjacent end of the adjacent busbar trunking unit, the positioning sleeve is slid again, so that the two ends of the positioning sleeve are respectively sleeved on the adjacent ends of the adjacent busbar trunking units, and the busbar connector is wrapped and protected by the positioning sleeve, restricting the subsequent operation of sundries from contaminating the busbar connector and preventing personnel from accidentally touching it.

[0009] Preferably, a maintenance opening is provided at the top of the positioning sleeve, and a cover plate for blocking the maintenance opening is also connected to the top of the positioning sleeve.

[0010] By adopting the above technical solution, when subsequently maintaining the busbar connector of the busbar trunking structure, the cover plate can be removed from the positioning sleeve, so as to facilitate maintenance personnel to observe and maintain the busbar connector located between adjacent busbar trunking units through the maintenance opening.

[0011] Preferably, a cooling fan is installed on the cover plate, and a plurality of long strip cooling holes are provided at the bottom of the positioning sleeve.

[0012] By adopting the above technical solution, during the daily operation of the busbar trunking structure, the cooling fan on the cover plate can blow air cyclically towards the busbar connector located inside the positioning sleeve at this time, so as to discharge the heat generated at the busbar connector through the long strip cooling holes at the bottom of the positioning sleeve, which is beneficial to better heat dissipation of the busbar connector.

[0013] Preferably, a limiting baffle is supported at the bottom of the cover plate, and a gap is left between the limiting baffle and the cover plate; the two opposite ends of the limiting baffle are respectively abutted against the two end walls of the inner cavity of the positioning sleeve, and gaps are respectively left between the two opposite sides of the limiting baffle and the two side walls of the inner cavity of the positioning sleeve.

[0014] By adopting the above technical solution, a diversion channel located on both sides of the busbar connector is formed by the cooperation of the limiting baffle and the inner cavity of the positioning sleeve, so that the air subsequently introduced into the positioning sleeve through the cooling fan can flow in as much as possible through the diversion channels on both sides of the busbar connector and be discharged through the long strip cooling holes at the bottom of the positioning sleeve; restricting the air entering the positioning sleeve through the cooling fan from directly contacting the busbar connector and the conductive plate of the busbar trunking unit, so as to reduce the situation of short - circuit hidden danger caused by the busbar connector adhering to external dust and impurities.

[0015] Preferably, limiting bolts are threadedly inserted through opposite sides of the positioning sleeve, and the limiting bolts are in tight contact with the outer side of the busbar trunking unit.

[0016] By adopting the above technical solution, after the positioning sleeve is installed at one end of the busbar trunking unit in the early stage, the limiting bolts can be made to be in tight contact with the outer side of the busbar trunking unit to limit the sliding of the positioning sleeve and prevent the positioning sleeve from falling off when the positioning sleeve is moved to the hanger; in the later stage, after the positioning sleeve is slid to both ends of the positioning sleeve are respectively sleeved on the ends of adjacent busbar trunking units, the limiting bolts can be made to be in tight contact with the outer side of the busbar trunking unit to fix the positioning sleeve, which is beneficial to the more stable installation of the positioning sleeve between adjacent busbar trunking units.

[0017] Preferably, the connecting member includes two connecting angle irons connected to the support rod, the two connecting angle irons are respectively located on both sides of the busbar trunking unit, and connecting bolts are threadedly inserted through the connecting angle irons, and the connecting bolts are in tight contact with the busbar trunking unit.

[0018] By adopting the above technical solution, after the positioning sleeve is respectively sleeved on the ends of adjacent busbar trunking units to position the adjacent busbar trunking units, the two connecting bolts on the corresponding hanger support rod are respectively in tight contact with the opposite sides of the busbar trunking unit, so as to realize the stable connection of the busbar trunking unit and limit the situation that the position of the busbar trunking unit is shifted due to accidentally touching the busbar trunking unit when installing the busbar connector subsequently.

[0019] Preferably, a plurality of connecting rods are arranged between the support rods of adjacent hangers, the support rods are provided with connecting holes corresponding to the connecting rods, and both ends of the connecting rods are respectively inserted into the corresponding connecting holes of the adjacent support rods and are welded and fixed to the connecting holes.

[0020] By adopting the above technical solution, on the one hand, when installing the hanger, the connecting holes on the support rod of the hanger to be installed can be inserted and matched with the connecting rods on the support rod of the already installed hanger to realize the rapid positioning of adjacent hangers and limit the situation that the installation position of adjacent hangers is shifted, affecting the subsequent fixing of the busbar trunking unit; on the other hand, the connecting rods between adjacent hanger support rods can effectively improve the connection integrity and stability between adjacent hangers, and thus are beneficial to the hanger better supporting the busbar trunking unit.

[0021] An installation method for the busbar trunking structure as described above includes the following steps: S1: Hanger installation: Fix the hanger to the top of the building ceiling; S2: Positioning sleeve installation: Slip the positioning sleeve onto one end of the busbar trunking unit; S3: Busbar trunking unit in place: Move the busbar trunking unit into the hanger and make the bottom of the busbar trunking unit abut against the support rod of the corresponding hanger; S4: Busway unit positioning: Slide the positioning sleeve located at the end of the busway unit so that both ends of the positioning sleeve are respectively sleeved on the ends of the adjacent busway units at the similar ends, realizing the positioning of the adjacent two busway units; S5: Busway unit fixing: Fix the busway unit on the support rod of the hanger through a connecting piece; S6: Positioning sleeve movement: Move the positioning sleeve located at the similar ends of the adjacent two busway units until it completely slides into the end of one busway unit; S7: Busbar connector installation: Connect the busbars at the similar ends of the adjacent busway units through a busbar connector; S8: Positioning sleeve in place: Slide the positioning sleeve located at the end of the busway unit so that both ends of the positioning sleeve are respectively sleeved on the ends of the adjacent busway units at the similar ends.

[0022] By adopting the above technical solution, when installing the busbar connector between the adjacent busway units in the early stage, the adjacent busway units can be quickly positioned through the positioning sleeve. After the busbar connector is installed in the later stage, the adjacent two busway units can be connected and limited through the positioning pipe, so as to limit the situation that the two busway units move in the wrong direction due to external loads, affecting the connection stability of the busbar connector. At the same time, the busbar connector can be wrapped and protected through the positioning sleeve to limit external sundries from contacting the busbar connector.

[0023] In summary, the present application includes at least one of the following beneficial technical effects: 1. When installing the busway structure, the positioning sleeve is pre - sleeved on one end of the busway. When the adjacent two busway units are placed on the corresponding hangers, slide the positioning sleeve at the end of the busway so that both ends are respectively sleeved on the similar ends of the adjacent busway units, then the conductive sheets at the ends of the adjacent two busway units can be quickly aligned, facilitating the installation of the busbar connector between the subsequent two busway units. After the busbar connector is installed, the busbar connector can be wrapped and protected through the positioning sleeve, effectively avoiding the subsequent operation of sundries contaminating the busbar connector and preventing personnel from accidentally touching it.

[0024] 2. Through the setting of the heat dissipation fan at the top of the positioning sleeve and the long strip heat dissipation holes at the bottom of the positioning sleeve, during the subsequent operation of the busway structure, heat dissipation can be carried out through the cooperation of the heat dissipation fan and the long strip heat dissipation holes, so as to timely discharge the heat at the busbar connector, reducing the situation of failure and damage caused by overheating in the busbar connector area.

[0025] 3. By supporting a limit baffle at the bottom of the cover plate, using the limit baffle to limit the air introduced by the subsequent heat dissipation fan into the positioning sleeve from directly contacting the busbar connector, so as to limit the situation of short - circuit failure of the busbar connector due to adhesion of dust carried in the air. Description of the Drawings

[0026] Figure 1 It is a structural schematic diagram used in the embodiment of the present application to illustrate the structure of the busbar trunking.

[0027] Figure 2 It is a schematic diagram used in the embodiment of the present application to illustrate the connection node of adjacent busbar trunking units.

[0028] Figure 3 It is a structural schematic diagram used in the embodiment of the present application to illustrate the positioning sleeve.

[0029] Figure 4 It is an exploded schematic diagram used in the embodiment of the present application to illustrate the positioning sleeve.

[0030] Figure 5 It is an internal structural schematic diagram used in the embodiment of the present application to illustrate the positioning sleeve and the busbar connector.

[0031] Figure 6 is Figure 1 an enlarged schematic diagram of part A in

[0032] Figure 7 It is a state schematic diagram used in the embodiment of the present application to illustrate the state when installing the hanging bracket.

[0033] Figure 8 It is a state schematic diagram used in the embodiment of the present application to illustrate the state when installing the busbar connector.

[0034] Explanation of reference numerals: 1. Busbar trunking unit; 11. Conductive bar; 2. Busbar connector; 3. Hanging bracket; 31. Support rod; 311. Connection hole; 32. Suspension rod; 33. Connection angle iron; 34. Connection bolt; 35. Connecting rod; 4. Positioning sleeve; 40. Inspection opening; 41. Limit bolt; 42. Cover plate; 420. Bending part; 4201. Fastening bolt; 421. Cooling fan; 422. Limit baffle; 423. Connection piece; 43. Long strip heat dissipation hole. Detailed implementation manners

[0035] The following further elaborates on the present application in conjunction with the attached Figure 1-8 drawings.

[0036] The embodiment of the present application discloses a busbar trunking structure and its installation method.

[0037] A busbar trunking structure, referring to Figure 1 and Figure 2, including several busbar trunking units 1. A number of hanging brackets 3 are provided at the bottom of each busbar trunking unit 1. The hanging bracket 3 includes a support rod 31, and suspension rods 32 are vertically connected to both ends of the support rod 31. The busbar trunking unit 1 abuts against the support rod 31, and the support rod 31 is connected to the busbar trunking unit 1 through a connecting member. The busbars 11 at the adjacent ends of two adjacent busbar trunking units 1 are connected through a busbar connector 2. A positioning sleeve 4 is also provided at the adjacent ends of two adjacent busbars. The two ends of the positioning sleeve 4 are respectively sleeved on the adjacent ends of the two adjacent busbars.

[0038] Before installing the busbar connector 2, first sleeve the positioning sleeve 4 on the end of one end of the busbar trunking unit 1; after moving two adjacent busbar trunking units 1 uniformly to the corresponding hanging brackets 3, by sliding the positioning sleeve 4 located at the end of the busbar at this time, so that the two ends of the positioning sleeve 4 are respectively sleeved on two adjacent busbar trunking units 1, completing the quick positioning and docking of two adjacent busbar trunking units 1; then after connecting the hanging bracket 3 and the busbar trunking unit 1 through a connecting member, move the positioning sleeve 4 back to the end of one busbar trunking unit 1. After the installation of the busbar connector 2 is completed, then move the positioning sleeve 4 back between two adjacent busbar trunking units 1, so that the positioning sleeve 4 wraps and protects the busbar connector 2.

[0039] Refer to Figure 2 and Figure 3 , limit bolts 41 are threadedly penetrated through the outer side of the positioning sleeve 4 corresponding to two adjacent busbar trunking units 1, and the limit bolts 41 are tightly abutted against the outer side of the corresponding busbar trunking unit 1. This is beneficial to more firmly sleeving the positioning sleeve 4 on the ends of two adjacent busbar trunking units 1.

[0040] Refer to Figure 3 and Figure 4 , a maintenance opening 40 is opened at the top of the positioning sleeve 4, and a cover plate 42 for plugging the maintenance opening 40 is also provided at the top of the positioning sleeve 4. The opposite sides of the cover plate 42 are both bent to form bent portions 420. The cover plate 42 and the bent portions 420 on both sides form a groove-like structure, so that the cover plate 42 is embedded in the top of the positioning sleeve 4. Tightening bolts 4201 are threadedly penetrated through the bent portions 420 of the cover plate 42, and the tightening bolts 4201 are abutted against the outer side of the positioning sleeve 4 to realize the limit fixation of the cover plate 42, so that the cover plate 42 is stably installed on the positioning sleeve 4. When subsequently maintaining the connection node of two adjacent busbar trunking units 1, the cover plate 42 at the top of the positioning sleeve 4 can be opened, so as to facilitate observing the busbar connector 2 located in the positioning sleeve 4 through the maintenance opening 40.

[0041] Refer to Figure 4 and Figure 5, a plurality of long strip heat dissipation holes 43 are provided at the bottom of the positioning sleeve 4. Through holes are formed through the cover plate 42, and a heat dissipation fan 421 is installed in the through holes. Through the arrangement of the heat dissipation fan 421, when the subsequent busbar trunking structure operates, the heat dissipation fan 421 can continuously blow air towards the inside of the positioning sleeve 4, so that the heat generated by the busbar connector 2 is discharged through the gap between the positioning sleeve 4 and the busbar trunking unit 1 and the long strip heat dissipation holes 43 at the bottom of the positioning sleeve 4.

[0042] Refer to Figure 4 and Figure 5 , a limiting baffle 422 is horizontally supported at the bottom of the cover plate 42, and each vertex angle of the limiting baffle 422 is connected to the bottom of the cover plate 42 through a connecting piece 423. A gap is left between the limiting baffle 422 and the cover plate 42. The two opposite ends of the limiting baffle 422 respectively abut against the two end walls of the inner cavity of the positioning sleeve 4, and gaps are respectively left between the two opposite sides of the limiting baffle 422 and the two opposite side walls of the inner cavity of the positioning sleeve 4. The projection of the limiting baffle 422 on the horizontal plane covers the projection of the busbar connector 2 on the horizontal plane.

[0043] Through the above settings, the limiting baffle 422 is used to limit the air introduced into the positioning sleeve 4 through the heat dissipation fan 421 from directly contacting the busbar connector 2, so as to limit the dust and impurities carried in the air from directly contacting the busbar connector 2, which may cause the busbar connector 2 to easily have a short circuit fault. At the same time, the limiting baffle 422 and the inner cavity of the positioning pipe cooperate to form a diversion channel on both sides of the busbar connector 2, so that the air entering through the heat dissipation fan 421 subsequently can flow to both sides of the busbar connector 2 and be discharged through the long strip heat dissipation holes 43 at the bottom of the positioning sleeve 4, which is beneficial to better discharging the heat generated by the busbar connector 2.

[0044] A dust sticking paper is also adhered to the upper surface of the limiting baffle 422, and the dust sticking paper is used to adhere the dust in the air entering the positioning sleeve 4 through the heat dissipation fan 421, so as to further limit the dust and impurities from contacting the components of the busbar connector 2.

[0045] Refer to Figure 1 and Figure 6 , mounting plates are vertically connected to the tops of the suspension rods 32, and a plurality of through holes are formed in the mounting plates for expansion screws to pass through. When installing and fixing the hanger 3, the expansion screws are inserted into the through holes on the mounting plates and driven into the building ceiling, and then the erection of the hanger 3 can be completed.

[0046] The connecting piece includes two connecting angle irons 33 welded to the support rod 31, and the two connecting angle irons 33 are respectively located on the two opposite sides of the busbar trunking unit 1. Connecting bolts 34 are respectively threaded through the connecting angle irons 33, and the connecting bolts 34 on the two connecting angle irons 33 respectively abut against the two opposite sides of the corresponding busbar trunking unit 1, realizing the stable connection between the hangers 3 of the busbar trunking unit 1.

[0047] Reference Figure 6 and Figure 7 Figure 7 , there are two connecting rods 35 connected between the support rods 31 of adjacent hanging brackets 3. The support rods 31 are provided with connection holes 311 corresponding to the connecting rods 35. The connection holes 311 are used for the ends of the connecting rods 35 to be inserted. The two ends of the connecting rod 35 are respectively inserted into the corresponding connection holes 311 of the support rods 31 of the adjacent hanging brackets 3, and the ends of the connecting rod 35 are welded and fixed to the connection holes 311. Using the connecting rod 35 to connect and limit adjacent hanging brackets 3 is beneficial to improving the connection integrity of adjacent hanging brackets 3, and further beneficial to the hanging bracket 3 better supporting the corresponding busbar unit 1.

[0048] An installation method for a busbar structure includes the following steps: S1: Installation of the hanging bracket 3: Fix the hanging bracket 3 to the top of the building ceiling; Reference Figure 6 and Figure 7 , the specific steps are as follows: S1.1: Installation of the starting hanging bracket 3: Fix the mounting plates at the tops of the suspension rods 32 at both ends of the support rod 31 to the top of the building ceiling through expansion bolts; S1.2: Insert the end of the connecting rod 35 into the corresponding connection hole 311 on the support rod 31 of the already installed hanging bracket 3, and weld and fix the end of the connecting rod 35 to the connection hole 311; S1.3: Installation of the ordinary hanging bracket 3: Move the support rod 31 of the hanging bracket 3 to be installed so that the connection hole 311 on the support rod 31 is inserted and matched with the end of the connecting rod 35 on the support rod 31 of the already installed hanging bracket 3; Weld and fix the end of the connecting rod 35 to the connection hole 311; Fix the mounting plates at the tops of the suspension rods 32 at both ends of the support rod 31 to the top of the building ceiling through expansion bolts; S1.4: Repeat steps S1.2 to S1.3 until the installation of the remaining hanging brackets 3 is completed.

[0049] S2: Installation of the positioning sleeve 4: Reference Figure 8 , put the positioning sleeve 4 on one end of the busbar unit 1; and make the limit bolt 41 outside the positioning sleeve 4 abut against the outside of the busbar unit 1.

[0050] S3: Placement of the busbar unit 1: Reference Figure 1 and Figure 7 , the specific steps are as follows: S3.1: Move the adjacent busbar units 1 onto the corresponding hanging brackets 3, so that the busbar unit 1 is located between the two connecting angle irons 33 on the support rod 31, and make the bottom of the busbar unit 1 abut against the support rod 31 of the corresponding hanging bracket 3; S3.2: Move the adjacent two busbar units 1 to make the adjacent two busbar units 1 initially opposite to each other.

[0051] S4: Positioning of the busbar trunking unit 1: Refer to Figure 1 and Figure 8 , and the specific steps are as follows: S4.1: Turn the limit bolt 41 on the outside of the positioning sleeve 4; S4.2: Slide the positioning sleeve 4 at the end of the busbar trunking unit 1 so that both ends of the positioning sleeve 4 are respectively sleeved on the adjacent ends of the adjacent busbar trunking units 1, realizing the precise positioning of the adjacent two busbar trunking units 1.

[0052] S5: Fixing of the busbar trunking unit 1: Refer to Figure 1 and Figure 6 , turn the connecting bolts 34 of the two connecting angle irons 33 on the support rod 31 so that the connecting bolts 34 on the two connecting angle irons 33 are respectively located on both sides of the busbar trunking unit 1, and fix the busbar trunking unit 1 on the support rod 31 of the hanging bracket 3 through the connecting piece.

[0053] S6: Movement of the positioning sleeve 4: Refer to Figure 1 and Figure 8 , slide the positioning sleeve 4 at the adjacent ends of the two adjacent busbar trunking units 1 until the busbar trunking unit 1 completely slides into the end of one busbar trunking unit 1; S7: Installation of the busbar connector 2: Connect the busbars 11 at the adjacent ends of the adjacent busbar trunking units 1 through the busbar connector 2.

[0054] S8: Placement of the positioning sleeve 4: Refer to Figure 1 and Figure 8 , and the specific steps are as follows: S8.1: Slide the positioning sleeve 4 at the end of the busbar trunking unit 1 until both ends of the positioning sleeve 4 are respectively sleeved on the adjacent ends of the adjacent busbar trunking units 1; S8.2: Turn the limit bolt 41 on the outside of the positioning sleeve 4 until the limit bolt 41 abuts against the outside of the corresponding busbar trunking unit 1.

[0055] In this application, by sleeving the positioning sleeve 4 at the adjacent ends of the adjacent busbar trunking units 1, before installing the busbar connector 2, the adjacent busbar trunking units 1 can be accurately positioned through the positioning sleeve 4, facilitating the rapid positioning of the adjacent busbar trunking units 1, and then facilitating the subsequent smooth installation of the busbar connector 2. After the busbar connector 2 is installed, the busbar connector 2 can be wrapped and protected by the positioning sleeve 4 to limit external dust pollution and prevent accidental contact by personnel.

[0056] The above are all the preferred embodiments of this application. The protection scope of this application is not limited accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of this application should be covered within the protection scope of this application.

Claims

1. A busbar trunking structure, characterized in that: It includes a number of busbar trunking units (1). A number of hanging brackets (3) are supported at the bottom of each busbar trunking unit (1). The hanging bracket (3) includes a support rod (31), and hanging rods (32) are vertically connected to both ends of the support rod (31); the busbar trunking unit (1) abuts against the support rod (31), and the support rod (31) is connected to the busbar trunking unit (1) through a connecting member; the adjacent busbar trunking units (1) are connected by a busbar connector (2) at the adjacent ends, and a positioning sleeve (4) is further arranged between the adjacent busbar trunking units (1), and both ends of the positioning sleeve (4) are respectively sleeved on the adjacent ends of the adjacent busbar trunking units (1).

2. The busbar trunking structure according to claim 1, wherein: An inspection opening (40) is opened at the top of the positioning sleeve (4), and a cover plate (42) for blocking the inspection opening (40) is further connected to the top of the positioning sleeve (4).

3. A busbar trunking structure according to claim 2, characterized in that: A cooling fan (421) is installed on the cover plate (42), and a number of long strip cooling holes (43) are opened at the bottom of the positioning sleeve (4).

4. A busbar trunking structure according to claim 3, characterized in that: A limiting baffle (422) is supported at the bottom of the cover plate (42), and a gap is left between the limiting baffle (422) and the cover plate (42); both opposite ends of the limiting baffle (422) respectively abut against the two end walls of the inner cavity of the positioning sleeve (4), and gaps are respectively left between both opposite sides of the limiting baffle (422) and the two side walls of the inner cavity of the positioning sleeve (4).

5. A busbar trunking structure according to claim 1, characterized in that: Limiting bolts (41) are threadedly penetrated through both opposite sides of the positioning sleeve (4), and the limiting bolts (41) are tightly abutted against the outer side of the busbar trunking unit (1).

6. The busbar trunking structure according to claim 1, wherein: The connecting member includes two connecting angle irons (33) connected to the support rod (31). The two connecting angle irons (33) are respectively located on both sides of the busbar trunking unit (1). Connecting bolts (34) are threadedly penetrated through the connecting angle irons (33), and the connecting bolts (34) are tightly abutted against the busbar trunking unit (1).

7. A busbar trunking structure according to claim 6, characterized in that: A number of connecting rods (35) are arranged between the support rods (31) of the adjacent hanging brackets (3). Connecting holes (311) are opened on the support rod (31) corresponding to the connecting rods (35). Both ends of the connecting rod (35) are respectively inserted into the corresponding connecting holes (311) of the adjacent support rods (31) and are fixedly welded to the connecting holes (311).

8. A method for installing a busbar trunking structure according to any one of claims 1 to 7, characterized in that: It includes the following steps: S1: Installation of the hanging bracket (3): Fix the hanging bracket (3) on the top of the building ceiling; S2: Installation of the positioning sleeve (4): Sleeve the positioning sleeve (4) onto one end of the busbar trunking unit (1); S3: Placement of the busbar trunking unit (1): Move the busbar trunking unit (1) onto the hanging bracket (3), and make the bottom of the busbar trunking unit (1) abut against the support rod (31) of the corresponding hanging bracket (3); S4: Positioning of the busbar trunking unit (1): Slide the positioning sleeve (4) located at the end of the busbar trunking unit (1) so that both ends of the positioning sleeve (4) are respectively sleeved on the adjacent ends of the adjacent busbar trunking units (1) to realize the positioning of the adjacent two busbar trunking units (1). S5: Fixing the busbar trunking unit (1): Fix the busbar trunking unit (1) on the support rod (31) of the hanger (3) through a connecting piece; S6: Moving the positioning sleeve (4): Move the positioning sleeve (4) located at the adjacent ends of two adjacent busbar trunking units (1) until it completely slides into the end of one busbar trunking unit (1); S7: Installing the busbar connector (2): Connect the busbars (11) at the adjacent ends of two adjacent busbar trunking units (1) through the busbar connector (2); S8: Positioning the positioning sleeve (4): Slide the positioning sleeve (4) located at the end of the busbar trunking unit (1) so that both ends of the positioning sleeve (4) are sleeved on the adjacent ends of two adjacent busbar trunking units (1).

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