Bus duct with positioning structure

By introducing a plug-in structure of positioning blocks and positioning slots and limiting components into the busbar trunking, the problem of requiring multiple people to disassemble the existing busbar trunking cover plate is solved, enabling quick installation and disassembly by a single person, improving maintenance convenience, preventing leakage in humid environments, and enhancing sealing performance.

CN224264641UActive Publication Date: 2026-05-19ZHENJIANG CHUNZHUO ELECTRIC CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHENJIANG CHUNZHUO ELECTRIC CO LTD
Filing Date
2025-05-06
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

Existing busbar trunking requires multiple people to remove the cover plate, resulting in high labor costs. Furthermore, it lacks an installation structure with connection ports, making maintenance inconvenient and its practicality low.

Method used

A plug-in structure of positioning block and positioning groove was designed. Combined with the use of limiting components and sealing rings, the top cover can be quickly positioned and disassembled. The connection port can be quickly positioned by the cooperation of fixing block and plug, thus enhancing the sealing performance.

Benefits of technology

It enables quick installation and removal of the top cover, reduces labor costs, improves maintenance convenience, prevents electrical leakage in humid environments, and enhances sealing performance.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of bus ducts, and discloses a bus duct with a positioning structure, which comprises a bus duct body, a top cover and a connecting port, a positioning block is fixedly mounted on one surface, close to the bus duct body, of the top cover, and a positioning groove is formed in one surface, close to the top cover, of the bus duct body. A first limiting assembly is arranged between the bus duct body and the top cover. According to the bus duct with the positioning structure, through cooperation of the positioning blocks, the positioning grooves and the first limiting assemblies, rapid installation of the top cover can be achieved, the installation efficiency is improved, after long-time use, the interior of the bus duct body can be conveniently overhauled, installation and disassembly work can be completed by one person, the labor cost is reduced, practicability is high, and the bus duct is worthy of popularization and application. Through cooperation of a fixing block and a first groove and cooperation of an inserting block and an inserting groove, rapid positioning of a connecting port can be achieved, through design of a second limiting assembly, limiting of the connecting port can be achieved, and the connecting port can be overhauled conveniently after being used for a long time.
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Description

Technical Field

[0001] This utility model relates to the field of busbar technology, specifically a busbar with a positioning structure. Background Technology

[0002] Busbar trunking is a closed metal device made of copper or aluminum busbar columns, used to distribute high-power electricity to distributed systems. It can replace traditional cables in low-voltage power transmission projects. Busbar trunking uses copper or aluminum as conductors, is supported by non-alkaline insulation materials, and is encapsulated in a metal trough to form a high-efficiency power transmission system. Its original design purpose was to solve the limitations of traditional cables in high-current transmission scenarios, and it is especially suitable for high-capacity power distribution needs in modern high-rise buildings, industrial plants and other places.

[0003] Chinese Utility Model Patent Publication No. CN222234385U discloses a busbar trunking with a positioning structure. When assembling the busbar trunking, the positioning seat is first pulled outwards to its limit position. At this point, the cover plate is positioned above the main body of the busbar trunking, aligning the mounting holes on the main body with those on the cover plate. Then, the pulled positioning seat is loosened. The loosened positioning seat, through the elastic force of a spring, causes the plug-in block to automatically reset and engage with the plug-in slot, thus positioning the cover plate and the main body of the busbar trunking. However, while this busbar trunking with a positioning structure can quickly position the cover plate and the main body of the busbar trunking, disassembling the cover plate is inconvenient for a single person, requiring multiple people, resulting in high labor costs. Furthermore, the lack of a connection port installation structure makes maintenance difficult after prolonged use, leading to low practicality and hindering widespread adoption. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to provide a busbar trunking with a positioning structure. It can effectively solve the problems in the prior art that although the cover plate and the main body of the busbar trunking can be quickly positioned, it is not convenient for a single person to disassemble the cover plate. Multiple people are required to disassemble it, resulting in high labor costs. In addition, the installation structure with connection ports is not designed, making it inconvenient to maintain after long-term use. Therefore, it has low practicality and is not easy to promote and use.

[0005] The technical solution adopted by this utility model is as follows: a busbar trunking with a positioning structure, including a busbar trunking body, a top cover, and a connection port. A positioning block is fixedly installed on the side of the top cover near the busbar trunking body. A positioning groove is opened on the side of the busbar trunking body near the top cover. A limiting component one is provided between the busbar trunking body and the top cover. A fixing block and an insert block are fixedly installed on the end of the connection port near the busbar trunking body. An installation groove one is opened on the outer side of the fixing block. A sealing ring is provided inside the installation groove one. A groove one and a slot one are opened on the end of the busbar trunking body near the connection port. A limiting component two is provided between the busbar trunking body and the insert block. A copper busbar is fixedly installed inside the busbar trunking body.

[0006] Preferably, the positioning block and the positioning groove are plugged in, and the center lines of the busbar trunking body and the top cover are located on the same vertical line.

[0007] Using the above technical solution, the staff inserts the positioning block into the positioning groove, so that the top cover abuts against the busbar trunking body, which can achieve rapid positioning of the top cover.

[0008] Preferably, the limiting component one includes a movable groove, a movable plate, a limiting block, a spring, a pull rod, a connecting rod one, a mounting groove two, a fixing rod one, a guide block one, a movable sleeve one, a guide groove one, and a limiting groove one. The movable plate is slidably connected inside the movable groove. The limiting block is fixedly installed on the side of the movable plate near the busbar trunking body. The spring and the pull rod are fixedly installed on the side of the movable plate away from the limiting block. The connecting rod one is fixedly installed on the outer side of the pull rod. The mounting groove two is opened on the outer side of the top cover. The fixing rod one is fixedly installed inside the mounting groove two. The guide block one is fixedly installed on the outer side of the fixing rod one. The movable sleeve one is slidably connected to the outer side of the fixing rod one. The guide groove one is opened on the inner side of the movable sleeve one. The limiting groove one is opened on the outer side of the busbar trunking body near the top cover. The limiting block is adapted to the limiting groove one. The side of the limiting block near the busbar trunking body is inclined.

[0009] Through the above technical solution, during the process of quickly positioning the top cover, when the limiting block contacts the busbar trunking body, the presence of the spring causes the limiting block to move into the interior of the movable groove. When the positioning block is completely submerged in the interior of the positioning groove, the spring rebounds, pushing the limiting block into the interior of the limiting groove. This can achieve rapid positioning of the top cover, improve installation efficiency, and facilitate the internal maintenance of the busbar trunking body after long-term use.

[0010] Preferably, the movable sleeve and the connecting rod are rotatably connected, and the guide block and the guide groove are adapted to each other.

[0011] With the above technical solution, when it is necessary to inspect the inside of the busbar trunking, the staff pulls the lever to disengage the limiting block from the inside of the limiting groove one, and at the same time, the moving sleeve one also moves outward. Then, the moving sleeve one is rotated to cause the guide block one to misalign with the guide groove one, so that the spring cannot recover its deformation and achieves the limiting effect. Then, the staff pulls the positioning block out of the positioning groove, which can realize the quick disassembly of the top cover. Through the design of the limiting component one, a single person can complete the installation and disassembly work, reducing labor costs and making it highly practical.

[0012] Preferably, the sealing ring is a rubber ring, and three identical sealing rings are provided, with the three sealing rings distributed at equal intervals.

[0013] Through the above technical solution, the sealing ring has good sealing performance. Through the design of the sealing ring, in a humid environment, it is prevented that humid air enters the interior of the busbar trunking and comes into direct contact with the copper busbar, which would lead to leakage and affect the normal use of the whole. The sealing performance is high. The design of three sealing rings further improves the overall sealing performance.

[0014] Preferably, the fixing block and the groove are connected by insertion, the insertion block and the slot are connected by insertion, and the cross-section of the insertion block is L-shaped.

[0015] Using the above technical solution, the worker inserts the fixing block into the first groove and the insert block into the inside of the slot, so that the connection port abuts against the busbar trunking body, which can achieve rapid positioning of the connection port.

[0016] Preferably, the limiting component two includes a groove two, a mounting groove three, a limiting groove two, a fixing rod two, a guide block two, a movable sleeve two, a guide groove two, a connecting rod two, a limiting rod, a mounting groove four, a magnet one, a groove three, a limiting groove three, and a magnet two. The outer side of the busbar trunking body has a groove two, a mounting groove three, and a limiting groove two. A fixing rod two is fixedly installed inside the mounting groove three. A guide block two is fixedly installed on the outer side of the fixing rod two. A movable sleeve two is slidably connected to the outer side of the fixing rod two. A guide groove two is opened on the inner side of the movable sleeve two. A connecting rod 2 is fixedly installed on the outside. A limiting rod is fixedly installed on the side of the connecting rod 2 near the busbar trunking body. An installation groove 4 is opened at the end of the limiting rod away from the connecting rod 2. A magnet 1 is inserted into the installation groove 4. A groove 3 and a limiting groove 3 are opened on the side of the insert block away from the busbar trunking body. A magnet 2 is inserted into the limiting groove 3. The guide block 2 is adapted to the guide groove 2. The limiting rod is adapted to the limiting groove 2 and the limiting groove 3. The limiting groove 2 and the limiting groove 3 have the same diameter. The magnet 1 and the magnet 2 are magnetically connected.

[0017] With the above technical solution, after the connection port is quickly positioned, the operator pulls the movable sleeve two, causing the limiting rod to disengage from the inside of the limiting groove two, and at the same time causing the guide block two to disengage from the inside of the guide groove two. Then, the movable sleeve two is rotated 180°, and the guide block two is inserted into the inside of the guide groove two, while the limiting rod is inserted into the inside of the limiting groove three. Then, magnet one and magnet two attract each other, making the connection between the limiting rod and the limiting groove three more secure, which can realize the limiting of the connection port. After long-term use, it is convenient to maintain it.

[0018] Compared with the prior art, the present invention provides a busbar trunking with a positioning structure, which has the following advantages:

[0019] 1. The busbar trunking with positioning structure can achieve rapid installation of the top cover through the cooperation of positioning block, positioning groove and limiting component 1, which improves installation efficiency. After long-term use, it is convenient to inspect the inside of the busbar trunking body. Moreover, the installation and disassembly work can be completed by a single person, reducing labor costs and making it highly practical.

[0020] 2. This busbar trunking with a positioning structure can quickly position the connection port through the cooperation of the fixing block and the groove one and the plug block and the slot. Through the design of the limiting component two, the connection port can be limited. After long-term use, it is easy to maintain. Because the sealing ring has good sealing performance, the design of the sealing ring prevents humid air from entering the interior of the busbar trunking body and directly contacting the copper busbar, which would cause leakage and affect the normal use of the whole. The sealing performance is high. The design of three sealing rings further improves the overall sealing performance. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0022] Figure 2 This is a schematic diagram of the disassembled structure of this utility model;

[0023] Figure 3 This is a schematic diagram of the sealing ring installation structure of this utility model;

[0024] Figure 4 This utility model Figure 3 Enlarged structural diagram at point B;

[0025] Figure 5 This is a schematic diagram of the connection port installation structure of this utility model;

[0026] Figure 6 This utility model Figure 5 Enlarged structural diagram at point A in the middle;

[0027] Figure 7 This is a schematic diagram of the installation structure of the second limiting component of this utility model;

[0028] Figure 8 This is a schematic diagram of the installation structure of the limiting component of this utility model. Figure 1 ;

[0029] Figure 9 This is a schematic diagram of the installation structure of the limiting component of this utility model. Figure 2 ;

[0030] Figure 10 This is a schematic diagram of the installation structure of the limiting component of this utility model. Figure 3 .

[0031] The components include: 1. Busbar trunking body; 2. Top cover; 3. Connection port; 4. Positioning block; 5. Positioning groove; 6. Limiting component one; 601. Movable groove; 602. Moving plate; 603. Limiting block; 604. Spring; 605. Pull rod; 606. Connecting rod one; 607. Mounting groove two; 608. Fixing rod one; 609. Guide block one; 610. Movable sleeve one; 611. Guide groove one; 612. Limiting groove one; 7. Fixing block; 8. Insertion block; 9. Mounting groove one; 10. Sealing... 11. Sealing ring; 12. Groove 1; 13. Slot; 14. Limiting component 2; 15. Groove 2; 16. Mounting slot 3; 17. Limiting slot 2; 18. Fixing rod 2; 19. Guide block 2; 10. Moving sleeve 2; 11. Guide slot 2; 12. Connecting rod 2; 13. Limiting rod; 14. Mounting slot 4; 15. Magnet 1; 16. Groove 3; 17. Limiting slot 3; 18. Magnet 2; 19. Copper busbar. Detailed Implementation

[0032] 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.

[0033] Example 1:

[0034] like Figure 1-10As shown, the present invention provides a busbar trunking with a positioning structure, including a busbar trunking body 1, a top cover 2, and a connection port 3. A positioning block 4 is fixedly installed on the side of the top cover 2 near the busbar trunking body 1. A positioning groove 5 is opened on the side of the busbar trunking body 1 near the top cover 2. A limit component 6 is provided between the busbar trunking body 1 and the top cover 2. A fixing block 7 and an insert block 8 are fixedly installed on the end of the connection port 3 near the busbar trunking body 1. An installation groove 9 is opened on the outer side of the fixing block 7. A sealing ring 10 is provided inside the installation groove 9. A groove 11 and a slot 12 are opened on the end of the busbar trunking body 1 near the connection port 3. A limit component 13 is provided between the busbar trunking body 1 and the insert block 8. A copper busbar 14 is fixedly installed inside the busbar trunking body 1.

[0035] Specifically, the positioning block 4 and the positioning groove 5 are plug-in installed, and the center lines of the busbar trunking body 1 and the top cover 2 are located on the same vertical line. The advantage is that when the operator inserts the positioning block 4 into the positioning groove 5, the top cover 2 comes into contact with the busbar trunking body 1, which can achieve quick positioning of the top cover 2.

[0036] Specifically, the limiting component 6 includes a movable groove 601, a movable plate 602, a limiting block 603, a spring 604, a pull rod 605, a connecting rod 606, a mounting groove 607, a fixing rod 608, a guide block 609, a movable sleeve 610, a guide groove 611, and a limiting groove 612. The movable plate 602 is slidably connected inside the movable groove 601. A limiting block 603 is fixedly installed on the side of the movable plate 602 closest to the busbar trunking body 1. A spring 604 and a pull rod 605 are fixedly installed on the side of the movable plate 602 away from the limiting block 603. A connecting rod 606 is fixedly installed on the outer side of the top cover 2. An installation groove 607 is opened on the outer side of the top cover 2. A fixing rod 608 is fixedly installed inside the installation groove 607. A guide block 609 is fixedly installed on the outer side of the fixing rod 608. A movable sleeve 610 is slidably connected to the outer side of the fixing rod 608. A guide groove 611 is opened on the inner side of the movable sleeve 610. A limiting groove 612 is opened on the outer side of the busbar trunking body 1 near the top cover 2. A limiting block 603 is adapted to the limiting groove 612. The side of the limiting block 603 near the busbar trunking body 1 is inclined. The advantage is that during the process of quickly positioning the top cover 2, when the limiting block 603 contacts the busbar trunking body 1, the presence of the spring 604 causes the limiting block 603 to move into the interior of the movable groove 601. When the positioning block 4 is completely submerged in the interior of the positioning groove 5, the spring 604 rebounds, pushing the limiting block 603 into the interior of the limiting groove 612. This can achieve quick positioning of the top cover 2, improve installation efficiency, and facilitate the maintenance of the interior of the busbar trunking body 1 after long-term use.

[0037] Specifically, the movable sleeve 610 and the connecting rod 606 are rotatably connected, and the guide block 609 is adapted to the guide groove 611. The advantage is that when maintenance is required on the inside of the busbar trunking body 1, the worker pulls the lever 605, causing the limiting block 603 to disengage from the limiting groove 612. Simultaneously, the movable sleeve 610 moves outward. Then, rotating the movable sleeve 610 causes the guide block 609 to misalign with the guide groove 611, preventing the spring 604 from recovering its deformation and achieving a limiting effect. The worker then pulls the positioning block 4 out of the positioning groove 5, enabling quick disassembly of the top cover 2. Through the design of the limiting component 6, installation and disassembly can be completed by a single person, reducing labor costs and demonstrating high practicality.

[0038] Example 2:

[0039] like Figure 2-10 As shown, as an improvement on the previous embodiment, to further facilitate the installation of the connection port 3, specifically, the fixing block 7 and the groove 11 are plugged in, and the plug block 8 and the slot 12 are plugged in. The cross-section of the plug block 8 is L-shaped. The advantage is that when the operator inserts the fixing block 7 into the groove 11 and simultaneously inserts the plug block 8 into the slot 12, the connection port 3 comes into contact with the busbar trunking body 1, enabling rapid positioning of the connection port 3.

[0040] Specifically, the limiting component 2 13 includes a groove 2 1301, a mounting groove 3 1302, a limiting groove 2 1303, a fixing rod 2 1304, a guide block 2 1305, a movable sleeve 2 1306, a guide groove 2 1307, a connecting rod 2 1308, a limiting rod 1309, a mounting groove 4 1310, a magnet 1 1311, a groove 3 1312, a limiting groove 3 1313, and a magnet 2 1314. The outer side of the busbar trunking body 1 is provided with a groove 2 1301, a mounting groove 3 1302, and a limiting groove 2 1303. A fixing rod 2 1304 is fixedly installed inside the mounting groove 3 1302. A guide block 2 1305 is fixedly installed on the outer side of the fixing rod 2 1304. A movable sleeve 2 1306 is slidably connected to the outer side of the fixing rod 2 1304. A guide groove 2 1305 is provided on the inner side of the movable sleeve 2 1306. 07. A connecting rod 1308 is fixedly installed on the outer side of the movable sleeve 1306. A limiting rod 1309 is fixedly installed on the side of the connecting rod 1308 near the busbar trunking body 1. An installation groove 1310 is opened at the end of the limiting rod 1309 away from the connecting rod 1308. A magnet 1311 is inserted into the installation groove 1310. A groove 3 1312 and a limiting groove 3 1313 are opened on the side of the plug block 8 away from the busbar trunking body 1. A magnet 2 1314 is inserted into the limiting groove 3 1313. The guide block 1305 is adapted to the guide groove 1307. The limiting rod 1309 is adapted to the limiting groove 2 1303 and the limiting groove 3 1313. The limiting groove 2 1303 and the limiting groove 3 1313 have the same diameter. The magnet 1311 and the magnet 2 1314 are magnetically connected. The advantage is that after quickly positioning the connection port 3, the operator pulls the movable sleeve 1306, causing the limit rod 1309 to disengage from the inside of the limit groove 1303, and simultaneously causing the guide block 1305 to disengage from the inside of the guide groove 1307. Then, the movable sleeve 1306 is rotated 180°, and the guide block 1305 is inserted into the inside of the guide groove 1307. At the same time, the limit rod 1309 is inserted into the inside of the limit groove 1313. Subsequently, the magnet 1311 and the magnet 2 1314 attract each other, making the connection between the limit rod 1309 and the limit groove 1313 more secure. This allows for the effective limiting of the connection port 3, and facilitates maintenance after long-term use.

[0041] Specifically, the sealing ring 10 is a rubber ring, and three identical sealing rings 10 are provided, with the three sealing rings 10 evenly spaced. The advantage is that, due to the excellent sealing performance of the sealing ring 10, its design prevents humid air from entering the busbar trunking body 1 and directly contacting the copper busbar 14 in a humid environment, thus avoiding leakage and affecting the normal operation of the entire system. The high sealing performance, further enhanced by the three sealing rings 10, further improves the overall sealing performance.

[0042] Working principle: During installation, the operator inserts the positioning block 4 into the positioning groove 5, causing the top cover 2 to contact the busbar trunking body 1, thus achieving rapid positioning of the top cover 2. During the rapid positioning of the top cover 2, when the limiting block 603 contacts the busbar trunking body 1, the presence of the spring 604 causes the limiting block 603 to move into the movable groove 601. When the positioning block 4 is completely submerged in the positioning groove 5, the spring 604 rebounds, pushing the limiting block 603 into the limiting groove 612, thus achieving rapid positioning of the top cover 2, improving installation efficiency, and facilitating maintenance of the busbar trunking body after prolonged use. When the internal structure of busbar trunking 1 needs to be inspected, the operator pulls the lever 605, causing the limiting block 603 to disengage from the limiting groove 612. Simultaneously, the moving sleeve 610 moves outward. Rotating the moving sleeve 610 causes the guide block 609 to misalign with the guide groove 611, preventing the spring 604 from recovering its deformation and achieving a limiting effect. The operator then pulls the positioning block 4 out of the positioning groove 5, enabling quick disassembly of the top cover 2. The design of the limiting component 6 allows for installation and disassembly by a single person, reducing labor costs and improving practicality. With high stability, the worker then inserts the fixing block 7 into the groove 11 and the insert block 8 into the slot 12, so that the connection port 3 abuts against the busbar trunking body 1, enabling rapid positioning of the connection port 3. After the connection port 3 is quickly positioned, the worker pulls the movable sleeve 1306, causing the limiting rod 1309 to disengage from the limiting groove 1303 and the guide block 1305 to disengage from the guide groove 1307. Then, the movable sleeve 1306 is rotated 180°, and the guide block 1305 is inserted into the guide groove 1307, while the limiting rod 1309 is... Insert the 9th rod into the limiting groove 1313. Then, magnet 1311 and magnet 214 attract each other, making the connection between the limiting rod 1309 and the limiting groove 1313 more secure. This allows for the limiting of the connection port 3. After long-term use, it is easy to maintain. During use, the sealing ring 10 has good sealing performance. Through the design of the sealing ring 10, in a humid environment, it prevents humid air from entering the interior of the busbar trunking body 1 and directly contacting the copper busbar 14, which could lead to leakage and affect the normal use of the whole. The sealing performance is high. The design of three sealing rings 10 further improves the overall sealing performance.

[0043] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A bus duct with positioning structure, comprising a bus duct body (1), a top cover (2) and a connecting port (3), characterized in that: A positioning block (4) is fixedly installed on the side of the top cover (2) near the busbar trunking body (1). A positioning groove (5) is opened on the side of the busbar trunking body (1) near the top cover (2). A limit component (6) is provided between the busbar trunking body (1) and the top cover (2). A fixing block (7) and a plug (8) are fixedly installed on the end of the connection port (3) near the busbar trunking body (1). An installation groove (9) is opened on the outside of the fixing block (7). A sealing ring (10) is provided inside the installation groove (9). A groove (11) and a slot (12) are opened on the end of the busbar trunking body (1) near the connection port (3). A limit component (13) is provided between the busbar trunking body (1) and the plug (8). A copper busbar (14) is fixedly installed inside the busbar trunking body (1).

2. The bus duct with positioning structure according to claim 1, characterized in that: The positioning block (4) and the positioning groove (5) are plugged in and installed together. The center lines of the busbar trunking body (1) and the top cover (2) are located on the same vertical line.

3. The bus duct with positioning structure according to claim 1, characterized in that: The limiting component 1 (6) includes a movable groove (601), a movable plate (602), a limiting block (603), a spring (604), a pull rod (605), a connecting rod 1 (606), a mounting groove 2 (607), a fixing rod 1 (608), a guide block 1 (609), a movable sleeve 1 (610), a guide groove 1 (611), and a limiting groove 1 (612). The movable plate (602) is slidably connected inside the movable groove (601). The limiting block (603) is fixedly installed on the side of the movable plate (602) close to the busbar trunking body (1). The spring (604) and the pull rod (605) are fixedly installed on the side of the movable plate (602) away from the limiting block (603). A connecting rod (606) is fixedly installed on the outer side of the top cover (2). An installation groove (607) is opened on the outer side of the top cover (2). A fixing rod (608) is fixedly installed inside the installation groove (607). A guide block (609) is fixedly installed on the outer side of the fixing rod (608). A movable sleeve (610) is slidably connected to the outer side of the fixing rod (608). A guide groove (611) is opened on the inner side of the movable sleeve (610). A limiting groove (612) is opened on the outer side of the busbar trunking body (1) near the top cover (2). The limiting block (603) is adapted to the limiting groove (612). The side of the limiting block (603) near the busbar trunking body (1) is inclined.

4. The bus duct with positioning structure according to claim 3, characterized in that: The movable sleeve (610) and the connecting rod (606) are rotatably connected, and the guide block (609) is adapted to the guide groove (611).

5. The bus duct with positioning structure according to claim 1, characterized in that: The sealing ring (10) is a rubber ring, and three identical sealing rings (10) are provided, with the three sealing rings (10) distributed at equal intervals.

6. The bus duct with positioning structure according to claim 1, characterized in that: The fixing block (7) and the groove (11) are plugged in and installed together. The plug block (8) and the slot (12) are plugged in and installed together. The cross section of the plug block (8) is "L" shaped.

7. The bus duct with positioning structure according to claim 1, characterized in that: The limiting component two (13) includes a second groove (1301), a third mounting groove (1302), a second limiting groove (1303), a second fixing rod (1304), a second guide block (1305), a second movable sleeve (1306), a second guide groove (1307), a second connecting rod (1308), a second limiting rod (1309), a fourth mounting groove (1310), a first magnet (1311), a third groove (1312), a third limiting groove (1313), and a second magnet (1314). The busbar The outer side of the groove body (1) is provided with a second groove (1301), a third mounting groove (1302), and a second limiting groove (1303). A second fixing rod (1304) is fixedly installed inside the third mounting groove (1302). A second guide block (1305) is fixedly installed on the outer side of the second fixing rod (1304). A second movable sleeve (1306) is slidably connected to the outer side of the second fixing rod (1304). A second guide groove (1307) is provided on the inner side of the second movable sleeve (1306). A connecting rod 2 (1308) is fixedly installed on the outer side of the movable sleeve 2 (1306). A limiting rod (1309) is fixedly installed on the side of the connecting rod 2 (1308) near the busbar trunking body (1). An installation groove 4 (1310) is opened at the end of the limiting rod (1309) away from the connecting rod 2 (1308). A magnet 1 (1311) is inserted into the installation groove 4 (1310). A groove 3 is opened on the side of the insert block (8) away from the busbar trunking body (1). (1312) and limiting groove three (1313), wherein a magnet two (1314) is inserted and installed inside the limiting groove three (1313), the guide block two (1305) is adapted to the guide groove two (1307), the limiting rod (1309) is adapted to the limiting groove two (1303) and the limiting groove three (1313), the limiting groove two (1303) and the limiting groove three (1313) have the same hole diameter, and the magnet one (1311) and the magnet two (1314) are magnetically connected.