Main busbar lapping device of low-voltage power distribution cabinet

Abstract

The utility model relates to the technical field of main busbars, in particular to a main busbar lap joint device of a low-voltage power distribution cabinet, which comprises a support frame and main busbar plates, the support frame is arranged in the low-voltage power distribution cabinet, the main busbar plates are arranged above the support frame, and the main busbar lap joint device is characterized by further comprising four sleeves, and the sleeves are rotationally connected with one sides of the main busbar plates. The sleeve is fixedly connected to one side of the main busbar plate, the four worm wheels are fixedly connected to one side of the sleeve, the four screws are in threaded connection with the corresponding worm wheels, the two worms are movably connected to one side of the main busbar plate and are in meshed connection with the two corresponding worm wheels, and the two first bevel gears are fixedly connected to the tops of the corresponding worms. The utility model has the beneficial effects that the electrical fault risk caused by looseness or poor contact is reduced by uniformly fastened screw connection, the safety of a system is improved, the fastening torque of all screws can be ensured to be consistent by fastening, and improper fastening of individual screws caused by negligence or fatigue of operators is avoided.

Description

Technical Field

[0001] This utility model relates to the field of main busbar technology, and in particular to a main busbar connection device for a low-voltage distribution cabinet. Background Technology

[0002] In modern power systems, low-voltage switchgear is one of the important devices to ensure the safety and reliability of power supply. The main busbar, as the core component of low-voltage switchgear, is mainly used to distribute and transmit electrical energy and connect various electrical components and loads.

[0003] Currently, the main busbars of low-voltage distribution cabinets are still connected using the traditional screw method during installation. Specifically, operators need to tighten each screw one by one to secure the connection between the main busbar and each electrical component. While this method can ensure the reliability of the connection to a certain extent, it also has the following shortcomings:

[0004] The installation efficiency is low, and the process of installing each screw is time-consuming and laborious, especially in large distribution cabinets where multiple electrical components need to be connected, the installation time will increase significantly.

[0005] Because of the large number of screws, operators are prone to negligence during installation, resulting in some screws not reaching the standard tightening torque. Even if the standard is met during installation, the screws may gradually loosen due to factors such as vibration and temperature changes after long-term operation, affecting the stability and safety of the system.

[0006] To address the above issues, we have introduced a main busbar connection device for low-voltage distribution cabinets. Utility Model Content

[0007] This utility model discloses a main busbar connection device for a low-voltage distribution cabinet, which aims to solve the technical problems in the background art.

[0008] To achieve the above objectives, the present invention adopts the following technical solution:

[0009] A main busbar connection device for a low-voltage distribution cabinet includes a support frame and main busbar plates. The support frame is disposed inside the low-voltage distribution cabinet, and the main busbar plates are all disposed above the support frame. The device further comprises: four sleeves, each sleeve rotatably connected to one side of the main busbar plate; four worm gears, each worm gear fixedly connected to one side of the sleeves; four screws, each screw threadedly connected to a corresponding worm gear; two worms, each worm gear movably connected to one side of the main busbar plate and meshing with two corresponding worm gears; two first bevel gears, each first bevel gear fixedly connected to the top of a corresponding worm gear; and an adjusting rod disposed on one side of the main busbar plate. Four fixing plates are fixedly connected to one side of the support frame, each worm gear rotatably connected between two corresponding fixing plates. The adjusting rod is rotatably connected between two of the fixing plates, and two second bevel gears are fixedly connected to the outside of the adjusting rod, each second bevel gear meshing with a corresponding first bevel gear.

[0010] The support frame is externally connected to a low-voltage circuit breaker. The input end of the low-voltage circuit breaker is provided with a first connecting line. The top of the main busbar is provided with a second connecting line. The top of the first connecting line and the bottom of the second connecting line are fixedly connected with a joint. The joints are used in conjunction with the main busbar by screws. The support frame is provided with fixed grooves at equal intervals inside.

[0011] The main busbar connection device for a low-voltage distribution cabinet provided by this utility model has the following advantages:

[0012] In this invention, by rotating the adjusting rod, the second bevel gear fixedly connected to the outside of the adjusting rod meshes with the first bevel gear, thereby rotating the first bevel gear. The rotation of the first bevel gear drives the corresponding worm to rotate, and the worm meshes with the worm wheel, causing the worm wheel to rotate. The rotation of the worm wheel drives the sleeve to rotate, and the sleeve is threadedly connected to the screw. On the one hand, the uniformly tightened screw connection reduces the risk of electrical faults caused by loosening or poor contact, improving the safety of the system. On the other hand, simultaneous tightening ensures that the tightening torque of all screws is consistent, avoiding improper tightening of individual screws due to operator negligence or fatigue. Compared with traditional devices, this greatly improves the quality of operation and efficiency of use. Attached Figure Description

[0013] Figure 1 This is a first-view perspective three-dimensional schematic diagram of a main busbar connection device for a low-voltage distribution cabinet proposed in this utility model.

[0014] Figure 2 This is a second-view perspective three-dimensional schematic diagram of the main busbar connection device of a low-voltage distribution cabinet proposed in this utility model.

[0015] Figure 3This is an isometric three-dimensional schematic diagram of the main busbar plate of a low-voltage distribution cabinet main busbar overlapping device proposed in this utility model.

[0016] Figure 4 This is an isometric three-dimensional schematic diagram of the main busbar plate of a low-voltage distribution cabinet main busbar overlapping device proposed in this utility model.

[0017] Figure 5 for Figure 4 Enlarged view of point A in the middle.

[0018] In the attached diagram: 1. Support frame; 2. Main female plate; 3. Sleeve; 4. Worm gear; 5. Screw; 6. Fixing plate; 7. Worm; 8. First bevel gear; 9. Adjusting rod; 10. Second bevel gear; 11. Low-voltage circuit breaker; 12. First connecting line; 13. Second connecting line; 14. Overlap joint; 15. Fixing groove. Detailed Implementation

[0019] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and marked in the accompanying drawings can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0020] The main busbar connection device of the low-voltage distribution cabinet disclosed in this utility model is mainly used in the scenario of main busbar.

[0021] Reference Figure 1 and Figure 2A main busbar connection device for a low-voltage distribution cabinet includes a support frame 1 and main busbar plates 2. The support frame 1 is located inside the low-voltage distribution cabinet, and the main busbar plates 2 are all located above the support frame 1. The device is characterized by further comprising: four sleeves 3, each sleeve 3 being rotatably connected to one side of the main busbar plates 2; four worm gears 4, each worm gear 4 being fixedly connected to one side of the sleeves 3; four screws 5, each screw 5 being threadedly connected to a corresponding worm gear 4; two worms 7, each worm gear 7 being movably connected to one side of the main busbar plates 2 and meshing with two corresponding worm gears 4; two first bevel gears 8, each first bevel gear 8 being fixedly connected to the top of a corresponding worm gear 7; an adjusting rod 9, the adjusting rod 9 being located on one side of the main busbar plates 2; four fixing plates 6 being fixedly connected to one side of the support frame 1; each worm gear 7 being rotatably connected between two corresponding fixing plates 6; the adjusting rod 9 being rotatably connected between two of the fixing plates 6; and two second bevel gears 10 being fixedly connected to the outside of the adjusting rod 9, each second bevel gear 10 meshing with a corresponding first bevel gear 8.

[0022] When the above-mentioned device is in use, the meshing transmission of the worm 7 and worm wheel 4 ensures the precision and stability of the fine adjustment of the main female plate 2, and improves the accuracy of the overlap. The meshing transmission of the first bevel gear 8 and the second bevel gear 10 ensures that the rotation of the adjusting rod 9 can be effectively transmitted to the worm 7 to realize the adjustment of the position of the main female plate. The threaded connection of the screw 5 and the sleeve 3 ensures the fixed connection between the overlap joint 14 and the main female plate 2, prevents the connection from loosening, reduces the risk of electrical failure caused by loosening or poor contact, and improves the safety of the system.

[0023] The support frame 1 is externally connected to a low-voltage circuit breaker 11. The input end of the low-voltage circuit breaker 11 is provided with a first connecting line 12. The main busbar 2 is provided with a second connecting line 13. The top of the first connecting line 12 and the bottom of the second connecting line 13 are fixedly connected with a joint 14. The joint 14 is used in conjunction with the main busbar 2 by screws 5. The support frame 1 is provided with fixed grooves 15 at equal intervals inside.

[0024] Working principle: In use, the low-voltage circuit breaker 11 is installed in the fixing groove 15 of the support frame 1 to ensure the stability of the low-voltage circuit breaker 11. The top of the first connecting line 12 and the bottom of the second connecting line 13 are fixedly connected to the lap joint 14. The lap joint 14 is used to connect with the main female plate 2. By rotating the adjusting rod 9, the second bevel gear 10 fixedly connected to the outside of the adjusting rod 9 meshes with the first bevel gear 8, thereby rotating the first bevel gear 8. The rotation of the first bevel gear 8 drives the corresponding worm 7 to rotate. The worm 7 meshes with the worm wheel 4, causing the worm wheel 4 to rotate. The rotation of the worm wheel 4 drives the sleeve 3 to rotate. The sleeve 3 is threadedly connected to the screw 5, thus connecting the first connecting line 12 and the second connecting line 13. The lap joint 14 of line 12 is used in conjunction with the screw 5 on the main busbar plate 2. The screw 5 fixes the lap joint 14 to the main busbar plate 2. Similarly, the lap joint 14 of the second connecting line 13 is fixed to the main busbar plate 2 by the screw 5, ensuring the firmness and reliability of the connection. The other end of the first connecting line 12 is connected to the input terminal of the low-voltage circuit breaker 11, and the other end of the second connecting line 13 is connected to other circuit loads or equipment to realize the distribution and control of low-voltage power supply. At the same time, the tightening can ensure that the tightening torque of all screws 5 is consistent, avoiding improper tightening of individual screws 5 due to operator negligence or fatigue. Compared with traditional devices, it greatly improves the operation quality and usage efficiency.

[0025] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. The substitutions may be replacements of some structures, devices, or method steps, or they may be complete technical solutions. Equivalent substitutions or modifications made based on the technical solution and inventive concept of this utility model should all be covered within the protection scope of this utility model.

Claims

1. A main busbar connection device for a low-voltage distribution cabinet, comprising a support frame (1) and main busbar plates (2), wherein the support frame (1) is disposed inside the low-voltage distribution cabinet, and the main busbar plates (2) are all disposed above the support frame (1), characterized in that, Also includes: Four sleeves (3), each sleeve (3) is rotatably connected to one side of the main female plate (2); Four worm gears (4) are fixedly connected to one side of the sleeve (3); Four screws (5), each screw (5) is threadedly connected to the corresponding worm gear (4); Two worm gears (7) are movably connected to one side of the main female plate (2) and mesh with the corresponding two worm wheels (4); Two first bevel gears (8) are fixedly connected to the top of the corresponding worm (7); Adjusting rod (9), the adjusting rod (9) is set on one side of the main busbar plate (2); The support frame (1) is externally connected to a low-voltage circuit breaker (11), and the input end of the low-voltage circuit breaker (11) is provided with a first connecting line (12).

2. The main busbar connection device for a low-voltage distribution cabinet according to claim 1, characterized in that, Four fixing plates (6) are fixedly connected to one side of the support frame (1), and the worm gear (7) is rotatably connected between two corresponding fixing plates (6).

3. The main busbar connection device for a low-voltage distribution cabinet according to claim 1, characterized in that, The adjusting rod (9) is rotatably connected between the two fixed plates (6).

4. The main busbar connection device for a low-voltage distribution cabinet according to claim 3, characterized in that, The adjusting rod (9) has two second bevel gears (10) fixedly connected to its exterior. Each of the second bevel gears (10) is meshed with the corresponding first bevel gear (8).

5. The main busbar connection device for a low-voltage distribution cabinet according to claim 1, characterized in that, A second connecting line (13) is provided above each of the main female plates (2). The top of the first connecting line (12) and the bottom of the second connecting line (13) are fixedly connected with a joint (14). The joint (14) is used in conjunction with the main female plate (2) by screws (5).

6. The main busbar connection device for a low-voltage distribution cabinet according to claim 1, characterized in that, The support frame (1) has fixed grooves (15) evenly spaced inside.

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