An overheat-resistant busbar trunking with a self-locking connector

Abstract

This utility model discloses an overheat-resistant busbar trunking with a self-locking connector, comprising two busbar trunkings arranged vertically. A cover plate is bolted to the outside of each busbar trunking. Multiple connectors are fixedly connected to both ends of each busbar trunking. A connecting sleeve connects the two busbar trunkings together. Four fixing members are symmetrically slidably connected to both sides of the connecting sleeve. The fixing members are threadedly connected to the connectors. Two fireproof plates are symmetrically fixed to both ends of the connecting sleeve. This utility model uses a sliding fit between a guide block and a guide groove to achieve pre-positioning of the connector. Combined with a positioning post with spring return and a ramp guide structure, radial alignment is automatically completed when the connector is inserted. The double constraint of the positioning hole of the guide block and the fixing members ensures that the connector cannot deflect during docking, avoiding misalignment of the threaded holes. Rotating the rotating block drives the stud to engage with the threaded hole of the connector, completing positioning and locking simultaneously in a single operation.

Description

Technical Field

[0001] This utility model relates to the field of busbar technology, and in particular to an overheat-resistant busbar with a self-locking connector. Background Technology

[0002] Patent publication number CN221928610U discloses a busbar trunking with a self-locking fastening core structure, including a housing. Multiple conductors covered with insulating layers are arranged parallel and spaced apart inside the housing. The space between the conductors and the housing is filled with refractory filler material. Connecting cover plates are provided at both ends of the housing. Each connecting cover plate includes a housing, a connecting joint, and insulating bolts. The housing covers the outside of the connecting joint, and the connecting joint has threaded holes adapted to the insulating bolts. The insulating bolts pass through the housing and are inserted into the connecting joint through the threaded holes. Addressing the difficulty of connecting busbar trunkings, this invention adds connecting joints and housings covering the connecting joints. When connecting adjacent busbar trunkings, the insulating bolts are used to fix the connecting joints to the housings, thus connecting the connecting joints and completing the busbar trunking connection. However, the current method relies on insulating bolts to fix the connecting joints, requiring manual alignment of the threaded holes during connection, which is cumbersome and requires high precision. Utility Model Content

[0003] The purpose of this utility model is to address the shortcomings of existing technologies by proposing an overheat-resistant busbar trunking with a self-locking connector.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: an overheat-resistant busbar trunking with a self-locking connector, comprising two busbar trunkings distributed vertically, a cover plate connected to the outside of the busbar trunking by bolts, multiple connecting connectors fixedly connected to both ends of the busbar trunking, a connecting sleeve connected between the two busbar trunkings, four fixing members symmetrically slidably connected to both sides of the connecting sleeve, the fixing members being threadedly connected to the connecting connectors, and two fireproof plates symmetrically fixed to both ends of the connecting sleeve.

[0005] As a further description of the above technical solution: the inner sides of the busbar trunking and the cover plate are permeated with multiple equidistant heat dissipation holes, and multiple equidistant annularly distributed heat sinks are fixedly connected in each heat dissipation hole.

[0006] As a further description of the above technical solution: symmetrical guide grooves are opened on both sides of the inner wall of the connecting sleeve, and two guide blocks are symmetrically slidably connected in each guide groove. The guide blocks are fixedly connected to the connecting joint on the outer side. The side of the guide block has a through positioning hole, and the fixing member is slidably inserted in the positioning hole. The side of the connecting joint has multiple equally spaced threaded holes horizontally inserted.

[0007] As a further description of the above technical solution: the fixing member includes a positioning post that slides through the positioning hole, a mounting hole that passes through the guide groove, the positioning post that slides through the mounting hole, a rotating block that is fixedly connected to the outside of the positioning post, a threaded groove that is coaxially formed on the inner side of the positioning post, a through hole that is coaxially formed in the threaded groove, a stud that is threadedly connected in the threaded groove, a connecting rod that is coaxially fixed at the end of the stud, the connecting rod that slides through the through hole and is fixedly connected to the rotating block, a threaded groove that passes through the side of the connecting joint, and a stud that is threadedly connected in the threaded hole.

[0008] As a further description of the above technical solution: two sliding grooves are symmetrically opened on the outer edge of the positioning post, and a slider is slidably connected in the sliding groove. The slider is fixed in the mounting hole, and a spring is fixed between the inner wall of the sliding groove and the slider.

[0009] As a further description of the above technical solution: the positioning post has an arc-shaped surface at one end of the connecting joint, and the guide block has a ramp on the side near the positioning post.

[0010] As a further description of the above technical solution: the diameter of the rotating block is equal to the diameter of the positioning post.

[0011] This utility model has the following beneficial effects: 1. Compared with the existing technology, the overheat-proof busbar trunking with self-locking connector adopts the sliding fit of guide block and guide groove to realize the pre-positioning of the connection connector. With the positioning post with spring return and the ramp guide structure, it automatically completes radial alignment when the connection sleeve is inserted. The double constraint of the positioning hole of the guide block and the fixing part ensures that the connection connector cannot deflect during the docking process, avoiding misalignment of the threaded hole. Rotating the rotating block can drive the stud to engage with the threaded hole of the connection connector. Positioning and locking are completed simultaneously in a single operation.

[0012] 2. Compared with the existing technology, the overheat-proof busbar trunking with self-locking joint has heat dissipation holes on the busbar trunking and cover plate forming a forced convection channel with the heat sink. The fireproof plates at both ends of the connecting sleeve are carbonized at high temperature to form a heat insulation layer, blocking heat diffusion. Attached Figure Description

[0013] Figure 1 This is a three-dimensional view of the overall structure of an overheat-proof busbar trunking with a self-locking connector proposed in this utility model. Figure 2 This is a main sectional view of the overall structure of an overheat-proof busbar trunking with a self-locking joint proposed in this utility model. Figure 3 This utility model proposes an overheat-proof busbar trunking with a self-locking connector. Figure 2 Enlarged view of the structure at point A in the middle.

[0014] Legend: 1. Busbar trunking; 2. Fireproof board; 3. Connecting sleeve; 4. Rotary block; 5. Guide block; 6. Connecting joint; 7. Threaded hole; 8. Guide groove; 9. Spring; 10. Slide groove; 11. Sliding block; 12. Positioning post; 13. Through hole; 14. Threaded groove; 15. Connecting rod; 16. Arc-shaped surface; 17. Positioning hole; 18. Stud; 19. Ramp. Detailed Implementation

[0015] 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.

[0016] Reference Figures 1 to 3 This utility model provides an overheat-resistant busbar trunking with a self-locking connector: it includes two busbar trunkings 1 distributed vertically, a cover plate connected to the outside of the busbar trunking 1 by bolts, multiple connecting connectors 6 fixedly connected to both ends of the busbar trunking 1, a connecting sleeve 3 connected between the two busbar trunkings 1, four fixing members symmetrically and slidably connected to both sides of the connecting sleeve 3, the fixing members being threadedly connected to the connecting connectors 6, two fireproof plates 2 symmetrically fixed to both ends of the connecting sleeve 3, guide grooves 8 symmetrically opened on both sides of the inner wall of the connecting sleeve 3, two guide blocks 5 symmetrically and slidably connected in each guide groove 8, the guide blocks 5 being fixedly connected to the connecting connectors 6 on the outside, positioning holes 17 penetrating the side of the guide blocks 5, the fixing members slidingly passing through the positioning holes 17, multiple equidistantly distributed heat dissipation holes penetrating the inner sides of the busbar trunking 1 and the cover plate, multiple equidistantly distributed annular heat dissipation fins fixedly connected in each heat dissipation hole, the fireproof plate 2 being made of ceramicized silicone rubber material, and multiple equidistantly distributed threaded holes 7 horizontally penetrating the side of the connecting head 6; The fixing component includes a positioning post 12 that slides through the positioning hole 17, a mounting hole that passes through the guide groove 8, a rotating block 4 that is fixedly connected to the outside of the positioning post 12, a threaded groove 14 that is coaxially opened on the inside of the positioning post 12, a through hole 13 that is coaxially opened in the threaded groove 14, a stud 18 that is threadedly connected in the threaded groove 14, a connecting rod 15 that is coaxially fixed at the end of the stud 18, the connecting rod 15 that slides through the through hole 13 and is fixedly connected to the rotating block 4, a threaded groove 14 that passes through the side of the connecting joint 6, a stud 18 that is threadedly connected in the threaded hole 7, two sliding grooves 10 that are symmetrically opened on the outer edge of the positioning post 12, a slider 11 that is slidably connected in the sliding grooves 10, a slider 11 that is fixed in the mounting hole, a spring 9 that is fixed between the inner wall of the sliding grooves 10 and the slider 11, an arc-shaped surface 16 that is provided at one end of the positioning post 12 located in the connecting joint 6, a ramp 19 that is opened on the side of the guide block 5 near the positioning post 12, and the diameter of the rotating block 4 that is equal to the diameter of the positioning post 12.

[0017] The guide block 5 and the guide groove 8 are slidably engaged to achieve the pre-positioning of the connecting joint 6. With the positioning post 12 with spring 9 reset and the ramp 19 guiding structure, radial alignment is automatically completed when the connecting sleeve 3 is inserted. The positioning hole 17 of the guide block 5 and the double constraint of the fixing part ensure that the connecting joint 6 cannot deflect during the docking process, avoiding misalignment of the threaded hole 7. Rotating the rotating block 4 can drive the stud 18 to engage with the threaded hole 7 of the connecting joint 6. Positioning and locking are completed simultaneously in a single operation. The heat dissipation holes and heat sinks on the busbar trough 1 and the cover plate form a forced convection channel. The fireproof plates 2 at both ends of the connecting sleeve 3 are carbonized at high temperature to form a heat insulation layer, blocking heat diffusion.

[0018] Working principle: Insert the connecting joints 6 of the two busbar troughs 1 into both ends of the connecting sleeve 3. The guide block 5 slides along the guide groove 8 to the limit position. At this time, the ramp 19 of the guide block 5 contacts the arc surface 16 of the positioning post 12, pressing the positioning post 12 to retract radially. At the same time, the spring 9 is compressed until the positioning hole 17 is aligned with the mounting hole. The spring 9 pushes the positioning post 12 into the positioning hole 17 to complete the radial locking. Then, rotate the rotating block 4 clockwise. Through the connecting rod 15, the stud 18 is driven to screw into the threaded hole 7 of the connecting joint 6. The axial displacement of the stud 18 causes the positioning post 12 to retract slightly. The slider 11 in the slide groove 10 compresses the spring 9 to ensure that the threaded pair fits tightly. The diameter of the rotating block 4 is consistent with that of the positioning post 12 to avoid torque eccentricity during operation.

[0019] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A heat-resistant busbar trunking with a self-locking connector, comprising two busbar trunkings (1) distributed vertically, characterized in that: The busbar trough (1) is connected to the cover plate by bolts. Multiple connecting joints (6) are fixedly connected to both ends of the busbar trough (1). A connecting sleeve (3) is connected between two busbar troughs (1). Four fixing parts are symmetrically slidably connected to both sides of the connecting sleeve (3). The fixing parts are threadedly connected to the connecting joints (6). Two fireproof plates (2) are symmetrically fixed to both ends of the connecting sleeve (3).

2. The overheat-resistant busbar trunking with a self-locking connector according to claim 1, characterized in that: The inner sides of the busbar groove (1) and the cover plate are permeated with multiple equidistant heat dissipation holes, and multiple equidistant annular heat dissipation fins are fixedly connected in each heat dissipation hole.

3. The overheat-resistant busbar trunking with a self-locking connector according to claim 1, characterized in that: The inner wall of the connecting sleeve (3) is symmetrically provided with guide grooves (8) on both sides. Two guide blocks (5) are symmetrically slidably connected in each guide groove (8). The guide blocks (5) are fixedly connected to the connecting joint (6) on the outside. The side of the guide block (5) passes through the positioning hole (17). The fixing member is slidably inserted in the positioning hole (17). The side of the connecting joint (6) is horizontally provided with multiple equally spaced threaded holes (7).

4. The overheat-resistant busbar trunking with a self-locking connector according to claim 3, characterized in that: The fixing component includes a positioning pin (12) that slides through the positioning hole (17), a mounting hole that passes through the guide groove (8), the positioning pin (12) that slides through the mounting hole, a rotating block (4) that is fixedly connected to the outside of the positioning pin (12), a threaded groove (14) that is coaxially opened on the inner side of the positioning pin (12), a through hole (13) that is coaxially opened in the threaded groove (14), a stud (18) that is threadedly connected in the threaded groove (14), a connecting rod (15) that is coaxially fixed at the end of the stud (18), the connecting rod (15) that slides through the through hole (13) and is fixedly connected to the rotating block (4), the side of the connecting joint (6) that passes through the threaded groove (14), and the stud (18) that is threadedly connected in the threaded hole (7).

5. The overheat-resistant busbar trunking with a self-locking connector according to claim 4, characterized in that: Two symmetrical grooves (10) are opened on the outer edge of the positioning post (12). A slider (11) is slidably connected in the groove (10). The slider (11) is fixed in the mounting hole. A spring (9) is fixed between the inner wall of the groove (10) and the slider (11).

6. The overheat-resistant busbar trunking with a self-locking connector according to claim 4, characterized in that: The positioning post (12) has an arc-shaped surface (16) at one end of the connecting joint (6), and the guide block (5) has a ramp (19) on the side close to the positioning post (12).

7. The overheat-resistant busbar trunking with a self-locking connector according to claim 4, characterized in that: The diameter of the rotating block (4) is equal to the diameter of the positioning post (12).

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