Bus duct joint protection device

Abstract

The utility model belongs to the technical field of bus ducts, and particularly relates to a bus duct joint protection device which comprises a first bus duct body and a second bus duct body, one side of the first bus duct body is fixedly connected with a first bus bar, one side of the second bus duct body is fixedly connected with a second bus bar, and the first bus bar and the second bus bar are fixedly connected. A connecting block is slidably inserted into the outer surface of the first bus bar, the inner side wall of the connecting block is slidably inserted into the outer surface of the second bus bar, the outer surface of the first bus bar is in sliding contact with the outer surface of the second bus bar, and a fixing bolt is in threaded connection with the surface of the connecting block. One end of the fixing bolt penetrates through the surface of the first bus bar and the surface of the second bus bar, and a connector protection mechanism is arranged on the outer side of the connecting block. According to the bus duct joint protection device, by arranging the joint protection structure, the first bus bar, the second bus bar and the connecting block are protected, and damage caused by external impact to the bus duct joint protection device is prevented.

Description

Technical Field

[0001] This utility model relates to the field of busbar trunking technology, and in particular to a busbar trunking joint protection device. Background Technology

[0002] In existing technologies, such as the busbar joint protection device disclosed on the Chinese patent website with publication number CN217508228U, an adjustment handle is installed on the outside of the main body, and a threaded rod is installed on the inside of the adjustment cavity. When connecting two sets of busbars, the operator rotates the adjustment handle to drive the threaded rod to rotate. The rotation of the threaded rod drives the moving block to move inside the moving groove, thereby realizing the horizontal adjustment of the plug-in block. The sliding block slides inside the sliding groove to ensure the stability of the busbar connection. After the busbar ends of the two sets of busbars are engaged, the upper shell is closed, making the installation and disassembly of the busbar more convenient, reducing the labor intensity of the operator, and improving the practical performance.

[0003] However, in actual use, the busbar connectors are installed inside the sealed housing. The sealed housing affects the heat dissipation capacity of the busbar connectors, causing the heat generated during the operation of the busbar to accumulate and affecting the stability of power transmission. In addition, the workers need to plug and fix the busbars inside the housing, which makes the installation inconvenient and affects the efficiency of busbar connection. Utility Model Content

[0004] To address the technical problems of inconvenient heat dissipation from existing sealed housings and inconvenient installation of busbar connections, which affect installation efficiency, this utility model proposes a busbar trunking joint protection device.

[0005] This utility model proposes a busbar trunking joint protection device, comprising a first busbar trunking body and a second busbar trunking body. A first busbar is fixedly connected to one side of the first busbar trunking body, and a second busbar is fixedly connected to one side of the second busbar trunking body. A connecting block is slidably inserted into the outer surface of the first busbar, and the inner sidewall of the connecting block is also slidably inserted into the outer surface of the second busbar. The outer surfaces of the first busbar and the second busbar slide in contact. A fixing bolt is threaded onto the surface of the connecting block, one end of which penetrates the surfaces of the first busbar and the second busbar. A joint protection mechanism is provided on the outer side of the connecting block, which performs a protective action at the connection point of the first busbar and the second busbar.

[0006] Preferably, the joint protection mechanism includes an inverted U-shaped fixing block, with sliders fixedly installed on the inner top and bottom surfaces of the inverted U-shaped fixing block, slide rails fixedly installed on the upper and lower surfaces of the first busbar trunking body and the second busbar trunking body, the outer surface of the slider slidably inserting into the inner sidewall of the slide rail, rubber pads fixedly installed on the front and rear sides of the first busbar trunking body and the second busbar trunking body, and the inner sidewall of the inverted U-shaped fixing block pressing against one side of the rubber pad.

[0007] The above technical solution, which includes a slide rail and an I-shaped fixing block, allows workers to connect the first busbar and the second busbar via a connecting block without any obstruction. The I-shaped fixing block is then slid into the slide rail by a slider to protect the first busbar, the second busbar, and the connecting block.

[0008] Preferably, an mounting block is fixedly installed on the lower surface of the C-shaped fixing block, and a rotating shaft is rotatably connected to the opposite surfaces of the two mounting blocks via ball bearings. The two ends of the rotating shaft pass through and extend outwards from the outer sides of the two mounting blocks, and an L-shaped fixing plate is fixedly connected to the arc surface of the rotating shaft. A rubber sealing ring is fixedly installed on the inner surface of the L-shaped fixing plate. The end surface of the C-shaped fixing block and one side surface of the rubber pad are in contact with one side surface of the rubber sealing ring. Heat dissipation holes are respectively opened on the upper and lower surfaces of the C-shaped fixing block, and dustproof nets are fixedly installed on the upper and lower surfaces of the C-shaped fixing block.

[0009] The above technical solution involves setting an L-shaped fixing plate, which is rotatably connected to the mounting block at the bottom of the C-shaped fixing block via a rotating shaft. Rotating the L-shaped fixing plate causes the rubber sealing ring to press against the end surface of the C-shaped fixing block and the rubber pad, thus protecting the unprotected side of the C-shaped fixing block. Heat dissipation holes are provided to allow heat inside the C-shaped fixing block to dissipate. Dustproof nets are installed outside the heat dissipation holes to prevent dust accumulation from affecting the power transmission of the first and second busbars.

[0010] Preferably, a support plate is fixedly installed on the upper part of the C-shaped fixing block. A limiting hole is formed on the middle surface of the support plate. A limiting rod is slidably inserted into the inner wall of the limiting hole. The upper surface of the end of the limiting rod extending out of the support plate is set as an inclined surface. A fixing groove is formed on the upper part of the L-shaped fixing plate. A rotating shaft is fixedly connected to the opposite surface of the inner wall of the fixing groove. The arc surface of the rotating shaft is rotatably connected to the limiting block through a ball bearing. The opposite surfaces of every two support plates are slidably inserted into the two sides of the limiting block. Fixing holes are formed on the two side surfaces of the limiting block. The outer surface of the limiting rod is slidably inserted into the inner wall of the fixing hole.

[0011] Through the above technical solution, a limiting block is set up. The limiting block rotates around the rotating shaft, so that the lower surface of the limiting block is pressed into contact with the upper inclined surface of the limiting rod. The limiting block rotates downward, causing the two limiting rods to slide outward along the limiting hole. The limiting block rotates downward without obstruction. When the limiting block rotates to the bottom, the fixing holes on both sides of the limiting block correspond to the limiting holes on the surface of the support plate, allowing the limiting rod to be inserted into the fixing hole. The lower surface of the limiting rod is pressed into contact with the bottom surface of the fixing hole, thus limiting and fixing the limiting block. This allows the L-shaped fixing plate to be stably fixed on the end side surface of the U-shaped fixing block, protecting the first busbar and the second busbar.

[0012] Preferably, a mounting bracket is fixedly installed on one side of the support plate, and a sliding hole is opened on one side surface of the mounting bracket. A pull rod is slidably inserted into the inner side wall of the sliding hole. One end of the pull rod is fixedly connected to one end of the limiting rod. A return spring is fixedly connected to one end of the limiting rod. One end of the return spring is fixedly connected to the inner surface of the mounting bracket. A pulling block is fixedly installed on one end of the pull rod.

[0013] The above technical solution includes a reset spring. When the limiting block presses the limiting rod outward, the reset spring is compressed. When the limiting block rotates to the bottom, the fixing hole aligns with the limiting hole. The reset spring causes the limiting rod to insert into the fixing hole and limit the limiting block. A pull block is also included. Pulling the pull block can move the pull rod outward, thus releasing the fixing of the limiting block. After the pull block is released, the limiting rod will return to its initial position under the action of the reset spring.

[0014] The beneficial effects of this utility model are as follows:

[0015] 1. By setting up connecting blocks, workers can connect the first busbar and the second busbar without obstruction using connecting blocks and fixing bolts. The joint protection structure protects the first busbar, the second busbar, and the connecting blocks from external impacts, thus solving the technical problem that the existing busbar connection installation is inconvenient and affects the installation efficiency.

[0016] 2. By setting an L-shaped fixing plate, which is rotatably connected to the mounting block at the bottom of the C-shaped fixing block via a rotating shaft, rotating the L-shaped fixing plate causes the rubber sealing ring to press against the end surface of the C-shaped fixing block and the rubber pad, thus protecting the unprotected side of the C-shaped fixing block. Heat dissipation holes are provided to allow heat inside the C-shaped fixing block to dissipate through the holes. Dustproof nets are installed outside the heat dissipation holes to prevent dust accumulation from affecting the power transmission of the first and second busbars. This solves the technical problem of inconvenient heat dissipation in existing sealed housings, which affects installation efficiency. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of a busbar joint protection device proposed in this utility model;

[0018] Figure 2 This is a perspective view of the heat dissipation hole structure of a busbar joint protection device proposed in this utility model;

[0019] Figure 3 This is a perspective view of the mounting block structure of a busbar joint protection device proposed in this utility model;

[0020] Figure 4 This is a perspective view of the connecting block structure of a busbar joint protection device proposed in this utility model;

[0021] Figure 5 This is a perspective view of the rubber sealing ring structure of a busbar joint protection device proposed in this utility model;

[0022] Figure 6 This is an enlarged view of point A of a busbar joint protection device proposed in this utility model;

[0023] Figure 7 This is an enlarged view of section B of a busbar joint protection device proposed in this utility model.

[0024] In the diagram: 1. First busbar trunking body; 2. Second busbar trunking body; 3. First busbar; 4. Second busbar; 5. Connecting block; 6. Fixing bolt; 7. C-shaped fixing block; 8. Slider; 9. Slide rail; 10. Rubber pad; 11. Mounting block; 12. Rotating shaft one; 13. L-shaped fixing plate; 14. Rubber sealing ring; 15. Heat dissipation hole; 16. Dustproof net; 17. Support plate; 18. Limiting hole; 19. Limiting rod; 20. Fixing groove; 21. Rotating shaft two; 22. Limiting block; 23. Fixing hole; 24. Mounting bracket; 25. Sliding hole; 26. Pull rod; 27. Return spring; 28. Pulling block. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0026] Reference Figures 1-7A busbar trunking joint protection device includes a first busbar trunking body 1 and a second busbar trunking body 2. A first busbar 3 is fixedly connected to one side of the first busbar trunking body 1, and a second busbar 4 is fixedly connected to one side of the second busbar trunking body 2. A connecting block 5 is slidably inserted into the outer surface of the first busbar 3, and the inner sidewall of the connecting block 5 is also slidably inserted into the outer surface of the second busbar 4. The outer surfaces of the first busbar 3 and the second busbar 4 are in slidable contact. A fixing bolt 6 is threadedly connected to the surface of the connecting block 5, and one end of the fixing bolt 6 penetrates the surface of the first busbar 3 and the second busbar 4. A joint protection mechanism is provided on the outer side of the connecting block 5, and the joint protection mechanism realizes the protective action at the connection between the first busbar 3 and the second busbar 4.

[0027] To protect the busbar trunking joints, a joint protection mechanism is provided. The joint protection mechanism includes an inverted U-shaped fixing block 7. A slider 8 is fixedly installed on the inner top and inner bottom surfaces of the inverted U-shaped fixing block 7. A slide rail 9 is fixedly installed on the upper and lower surfaces of the first busbar trunking body 1 and the second busbar trunking body 2. The outer surface of the slider 8 is slidably inserted into the inner side wall of the slide rail 9. Rubber pads 10 are fixedly installed on the front and rear sides of the first busbar trunking body 1 and the second busbar trunking body 2. The inner side wall of the inverted U-shaped fixing block 7 is pressed into contact with one side of the rubber pad 10.

[0028] By setting up the slide rail 9 and the U-shaped fixing block 7, the staff can connect the first busbar 3 and the second busbar 4 through the connecting block 5 without any obstruction. Then, the U-shaped fixing block 7 is slid into the slide rail 9 through the slider 8 to protect the first busbar 3, the second busbar 4 and the connecting block 5.

[0029] To protect the side that the C-shaped fixing block 7 cannot protect, a mounting block 11 is fixedly installed on the lower surface of the C-shaped fixing block 7. The opposing surfaces of the two mounting blocks 11 are rotatably connected by a rotating shaft 12 via ball bearings. The two ends of the rotating shaft 12 pass through and extend out of the outer sides of the two mounting blocks 11 respectively. An L-shaped fixing plate 13 is fixedly connected to the arc surface of the rotating shaft 12. A rubber sealing ring 14 is fixedly installed on the inner surface of the L-shaped fixing plate 13. The end surface of the C-shaped fixing block 7 and one side surface of the rubber pad 10 are in contact with one side surface of the rubber sealing ring 14. Heat dissipation holes 15 are opened on the upper and lower surfaces of the C-shaped fixing block 7 respectively. Dustproof nets 16 are fixedly installed on the upper and lower surfaces of the C-shaped fixing block 7 respectively.

[0030] By setting an L-shaped fixing plate 13, which is rotatably connected to the mounting block 11 at the lower part of the C-shaped fixing block 7 via a rotating shaft 12, rotating the L-shaped fixing plate 13 causes the rubber sealing ring 14 to press against the end surface of the C-shaped fixing block 7 and the rubber pad 10, so that the L-shaped fixing plate 13 protects the unprotected side of the C-shaped fixing block 7. A heat dissipation hole 15 is provided so that the heat inside the C-shaped fixing block 7 can be discharged through the heat dissipation hole. A dustproof net 16 is provided outside the heat dissipation hole 15 to prevent dust accumulation from affecting the power transmission of the first busbar 3 and the second busbar 4.

[0031] To fix the L-shaped fixing plate 13, a support plate 17 is fixedly installed on the upper part of the U-shaped fixing block 7. A limiting hole 18 is opened on the middle surface of the support plate 17. A limiting rod 19 is slidably inserted into the inner side wall of the limiting hole 18. The upper surface of the limiting rod 19 extending out of the support plate 17 is set as an inclined surface. A fixing groove 20 is opened on the upper part of the L-shaped fixing plate 13. A rotating shaft 21 is fixedly connected to the opposite side of the inner side wall of the fixing groove 20. The arc surface of the rotating shaft 21 is rotatably connected to the limiting block 22 through a ball bearing. The opposite surfaces of every two support plates 17 are slidably inserted into the two sides of the limiting block 22. Fixing holes 23 are opened on the two side surfaces of the limiting block 22. The outer surface of the limiting rod 19 is slidably inserted into the inner side wall of the fixing hole 23.

[0032] By setting a limiting block 22, the limiting block 22 rotates around the rotating shaft 21, so that the lower surface of the limiting block 22 presses against the upper inclined surface of the limiting rod 19, causing the limiting block 22 to rotate downward and the two limiting rods 19 to slide outward along the limiting hole 18, so that the limiting block 22 can rotate downward without obstruction. When the limiting block 22 rotates to the bottom, the fixing holes 23 on both sides of the limiting block 22 correspond to the limiting holes 18 on the surface of the support plate 17, so that the limiting rods 19 can be inserted into the fixing holes 23, and the lower surface of the limiting rods 19 presses against the bottom surface of the fixing hole 23, thereby limiting and fixing the limiting block 22, so that the L-shaped fixing plate 13 is stably fixed on the end side surface of the U-shaped fixing block 7, thus protecting the first busbar 3 and the second busbar 4.

[0033] To ensure that the limiting rod 19 remains fixed to the limiting block 22 without interference, a mounting bracket 24 is fixedly installed on one side of the support plate 17. A sliding hole 25 is provided on one side surface of the mounting bracket 24. A pull rod 26 is slidably inserted into the inner wall of the sliding hole 25. One end of the pull rod 26 is fixedly connected to one end of the limiting rod 19. A return spring 27 is fixedly connected to one end of the limiting rod 19. One end of the return spring 27 is fixedly connected to the inner surface of the mounting bracket 24. A pulling block 28 is fixedly installed on one end of the pull rod 26.

[0034] By setting a return spring 27, when the limiting block 22 presses the limiting rod 19 outward, the return spring 27 is compressed. When the limiting block 22 rotates to the bottom, the fixing hole 23 corresponds to the limiting hole 18. The return spring 27 resets the limiting rod 19 into the fixing hole 23 to limit and fix the limiting block 22. A pull block 28 is set. Pulling the pull block 28 can move the pull rod 26 outward and pull the limiting rod 19 outward, releasing the fixation of the limiting block 22. After the pull block 28 is released, the limiting rod 19 will return to its initial position under the action of the return spring 27.

[0035] Working principle: First, insert the first busbar 3 and the second busbar 4 into the connecting block 5, and fix the first busbar 3 and the second busbar 4 together with the fixing bolts 6 to ensure stable power transmission. Then, slide the U-shaped fixing block 7 into the slide rail 9 through the slider 8 until the inner wall of the U-shaped fixing block 7 is pressed into contact with the rubber pad 10. Rotate the L-shaped fixing plate 13 so that it rotates around the rotating shaft 21 until the rubber sealing ring 14 on the inner side of the L-shaped fixing plate 13 contacts the U-shaped fixing block. The end surfaces of 7 are pressed into contact, and then the limiting block 22 is rotated around the rotating shaft 21, so that the lower surface of the limiting block 22 is pressed into contact with the upper inclined surface of the limiting rod 19. The limiting block 22 rotates downward so that the two limiting rods 19 slide outward along the limiting hole 18, compressing the return spring 27, so that the limiting rods 19 rotate downward without obstruction. When the limiting rods 19 rotate to the bottom, the fixing holes 23 on both sides of the limiting block 22 correspond to the limiting holes 18 on the surface of the support plate 17, and the limiting rods 1 9. Under the action of the return spring 27, the rod is inserted into the fixing hole 23, so that the lower surface of the limiting rod 19 is pressed against the bottom surface of the fixing hole 23, thereby limiting and fixing the limiting block 22. This makes the L-shaped fixing plate 13 stably fixed on the end side surface of the U-shaped fixing block 7, protecting the first busbar 3 and the second busbar 4. When it is necessary to remove the U-shaped fixing block 7, pulling the pulling block 28 can move the pulling rod 26 outward, which in turn moves the limiting rod 19 outward, releasing the fixation of the limiting block 22. The L-shaped fixing plate 13 rotates away from the C-shaped fixing block 7, causing the C-shaped fixing block 7 to slide along the slide rail 9. After releasing the pulling block 28, the limit rod 19 will return to its initial position under the action of the return spring 27. Heat dissipation holes 15 are opened on the upper and lower surfaces of the C-shaped fixing block 7 so that the heat inside the C-shaped fixing block 7 can be discharged through the heat dissipation holes. A dustproof net 16 is provided on the outside of the heat dissipation holes 15 to prevent dust accumulation from affecting the power transmission of the first busbar 3 and the second busbar 4.

[0036] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A busbar trunking joint protection device, comprising a first busbar trunking body (1) and a second busbar trunking body (2), characterized in that: A first busbar (3) is fixedly connected to one side of the first busbar trunking body (1), and a second busbar (4) is fixedly connected to one side of the second busbar trunking body (2). A connecting block (5) is slidably inserted into the outer surface of the first busbar (3). The inner sidewall of the connecting block (5) is also slidably inserted into the outer surface of the second busbar (4). The outer surface of the first busbar (3) and the outer surface of the second busbar (4) are in sliding contact. A fixing bolt (6) is threadedly connected to the surface of the connecting block (5). One end of the fixing bolt (6) penetrates the surface of the first busbar (3) and the second busbar (4). A joint protection mechanism is provided on the outer side of the connecting block (5). The joint protection mechanism realizes the protective action at the connection between the first busbar (3) and the second busbar (4).

2. The busbar joint protection device according to claim 1, characterized in that: The joint protection mechanism includes an inverted U-shaped fixing block (7), with a slider (8) fixedly installed on the inner top and inner bottom surfaces of the inverted U-shaped fixing block (7). A slide rail (9) is fixedly installed on the upper and lower surfaces of the first busbar trunk body (1) and the second busbar trunk body (2). The outer surface of the slider (8) is slidably inserted into the inner sidewall of the slide rail (9). Rubber pads (10) are fixedly installed on the front and rear sides of the first busbar trunk body (1) and the second busbar trunk body (2). The inner sidewall of the inverted U-shaped fixing block (7) is pressed against one side of the rubber pad (10).

3. The busbar joint protection device according to claim 2, characterized in that: The lower surface of the C-shaped fixing block (7) is fixedly mounted with a mounting block (11). The opposing surfaces of the two mounting blocks (11) are rotatably connected to a rotating shaft (12) via ball bearings. The two ends of the rotating shaft (12) pass through and extend out of the outer sides of the two mounting blocks (11). An L-shaped fixing plate (13) is fixedly connected to the arc surface of the rotating shaft (12).

4. A busbar joint protection device according to claim 3, characterized in that: A rubber sealing ring (14) is fixedly installed on the inner surface of the L-shaped fixing plate (13). The end surface of the U-shaped fixing block (7) and one side surface of the rubber pad (10) are pressed against one side surface of the rubber sealing ring (14). Heat dissipation holes (15) are opened on the upper and lower surfaces of the U-shaped fixing block (7). Dustproof nets (16) are fixedly installed on the upper and lower surfaces of the U-shaped fixing block (7).

5. A busbar joint protection device according to claim 4, characterized in that: A support plate (17) is fixedly installed on the upper part of the C-shaped fixing block (7). A limiting hole (18) is opened on the middle surface of the support plate (17). A limiting rod (19) is slidably inserted into the inner side wall of the limiting hole (18). The upper surface of the limiting rod (19) extending out of the support plate (17) is set as an inclined surface.

6. A busbar joint protection device according to claim 5, characterized in that: The upper part of the L-shaped fixing plate (13) is provided with a fixing groove (20). The inner sidewall of the fixing groove (20) is fixedly connected to the opposite side of the rotating shaft (21). The arc surface of the rotating shaft (21) is rotatably connected to the limiting block (22) through a ball bearing. The opposite sides of each pair of support plates (17) are slidably inserted into the two sides of the limiting block (22). The two sides of the limiting block (22) are provided with fixing holes (23). The outer surface of the limiting rod (19) is slidably inserted into the inner sidewall of the fixing hole (23).

7. A busbar joint protection device according to claim 6, characterized in that: A mounting bracket (24) is fixedly installed on one side of the support plate (17). A sliding hole (25) is opened on one side surface of the mounting bracket (24). A pull rod (26) is slidably inserted into the inner wall of the sliding hole (25). One end of the pull rod (26) is fixedly connected to one end of the limiting rod (19). A return spring (27) is fixedly connected to one end of the limiting rod (19). One end of the return spring (27) is fixedly connected to the inner surface of the mounting bracket (24). A pulling block (28) is fixedly installed on one end of the pull rod (26).

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