A sealing connection device for waterproof dense bus
Patent Information
- Application Number
- CN202522164152.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-13
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-10-13
AI Technical Summary
Existing waterproof dense busbar sealing connection devices are cumbersome to operate, have low connection efficiency, and poor waterproof reliability, affecting system safety and stability.
An installation mechanism comprising a gripping plate, a rotating plate, and a torsion spring was designed, combined with a sealing mechanism comprising a sealing plate, a compression column, and a spring, to achieve manual pre-compression and automatic reset locking, ensuring convenient installation and excellent sealing performance.
It simplifies installation and operation, ensures reliable locking, improves connection efficiency and sealing performance, ensures stable waterproof performance in humid outdoor environments, and reduces the difficulty of operation and the risk of misoperation.
Smart Images

Figure CN224935329U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of dense busbar technology, and in particular to a sealing connection device for a waterproof dense busbar. Background Technology
[0002] Busbar systems, as key equipment in modern power supply and distribution systems, are widely used in high-rise buildings, factory workshops, and data centers to efficiently and safely transmit large currents. In practical engineering applications, busbar systems are typically composed of multiple sections of standard busbar trunking spliced together; therefore, the performance of the connection devices between sections directly affects the safe and stable operation of the entire system.
[0003] With the expansion of application scenarios, dense busbars are increasingly being installed outdoors or in humid environments, which places higher demands on connection devices. The connections not only need to ensure excellent electrical connection and mechanical strength, but also must have reliable waterproof sealing performance to prevent moisture or humidity from penetrating the busbar and avoiding serious safety accidents such as short circuits, equipment corrosion, or even electrical fires.
[0004] In existing technologies, some waterproof compact busbars require the use of screws and tools for connection. This involves sequentially aligning the screws, manually screwing them in, tightening them with wrenches and screwdrivers, and checking the torque. Each step requires meticulous manual operation, which reduces connection efficiency. Therefore, this invention proposes a sealing connection device for waterproof compact busbars. Utility Model Content
[0005] In view of the problem that the existing waterproof dense busbar sealing connection device has cumbersome connection operation, resulting in reduced connection efficiency.
[0006] This utility model provides a waterproof, dense busbar sealing connection device, comprising two housings. Two right-angle plates are fixedly connected to the adjacent ends of the two housings, and a connecting frame is fixedly connected to the adjacent sides of the two housings. Guide plates are fixedly connected to the upper and lower sides of the housings. Two mounting brackets are slidably connected to the outside of every two guide plates. An installation mechanism is rotatably connected inside each of the two mounting brackets, and a sealing mechanism is fixedly connected inside each of the two mounting brackets. Each of the two installation mechanisms includes a gripping plate, and the outside of each gripping plate is rotatably connected to the inside of one of the two mounting brackets. A rotating plate is fixedly connected to the opposite side of each of the two gripping plates, and a reset component is fixedly connected to the outside of each gripping plate.
[0007] Furthermore, multiple guide plates are fixedly connected to adjacent sides of the two connecting frames, and multiple insulating plates are slidably connected to the outside of the multiple guide plates. The connecting frames, multiple guide plates, and multiple insulating plates are fixed by screws passing through them.
[0008] Furthermore, both of the reset components include side plates, which are externally fixedly connected to the outside of the grip plate, and torsion springs are externally fixedly connected to the outside of the side plates.
[0009] Furthermore, the exterior of the two torsion springs is fixedly connected to the interior of the two mounting brackets, and the exterior of the two side plates is slidably connected to the interior of the two mounting brackets.
[0010] Furthermore, both sealing mechanisms include sealing plates, the exterior of which are fixedly connected to the interior of two of the mounting brackets, and springs are fixedly connected to the inner walls of the left and right ends of the other two mounting brackets, with compression columns fixedly connected to the adjacent sides of the plurality of springs.
[0011] Furthermore, the exterior of the two extrusion columns is slidably connected to the interior of the left and right ends of the sealing plate, respectively, and the exterior of the two sealing plates is slidably connected to the interior of the other two mounting brackets.
[0012] Furthermore, the exterior of multiple mounting brackets is slidably connected to the exterior of multiple guide plates, and the exterior of multiple extrusion columns is slidably connected to the interior of two other mounting brackets.
[0013] Furthermore, the exterior of the two grips is slidably connected to the interior of the other two mounting brackets, and the exterior of the two housings is slidably connected to the inner walls of the plurality of mounting brackets.
[0014] This utility model has the following beneficial effects: 1. This utility model, by setting up an installation mechanism including a gripping plate, a rotating plate and a torsion spring, realizes the functions of manual pre-compression and automatic spring reset and locking, which solves the problems of cumbersome, laborious and uneven locking force in the existing busbar connection installation, and achieves the technical effects of convenient installation and operation, reliable locking and improved installation efficiency.
[0015] 2. This utility model solves the problems of poor waterproof reliability and susceptibility of sealing structures to environmental influences by setting up a sealing mechanism composed of a sealing plate, a compression column and a spring. The continuous restoring force of the spring acts on the sealing plate through the compression column, causing it to deform. This achieves the technical effects of continuous and stable sealing pressure, automatic gap compensation and excellent waterproof performance.
[0016] 3. This utility model integrates the installation mechanism and the sealing mechanism into a single linkage design, so that the locking action and the sealing pressurization action are completed simultaneously during the sliding of the mounting bracket into place. This solves the problems of separate connection and sealing steps and complex operation that are prone to errors in the prior art, and achieves the technical effects of simplifying the installation process, reducing the difficulty of operation, and improving the consistency of assembly. Attached Figure Description
[0017] Figure 1 This is a three-dimensional schematic diagram of a waterproof dense busbar sealing connection device proposed in this utility model; Figure 2 This is a schematic diagram of the connecting frame of a sealing connection device for a waterproof dense busbar proposed in this utility model; Figure 3 This is a schematic diagram of the right-angle plate of a sealing connection device for a waterproof dense busbar proposed in this utility model; Figure 4 This is a schematic diagram of the rotating plate of a sealing connection device for a waterproof dense busbar proposed in this utility model; Figure 5 This is a schematic diagram of the structure of the sealing plate of the sealing connection device for a waterproof dense busbar proposed in this utility model; Figure 6 for Figure 5 Enlarged view of point A in the middle.
[0018] Legend: 1. Outer shell; 2. Right-angle plate; 3. Connecting frame; 4. Guide plate; 5. Insulating plate; 6. Guide plate; 7. Mounting frame; 8. Mounting mechanism; 81. Rotating plate; 82. Holding plate; 83. Reset assembly; 831. Side plate; 832. Torsion spring; 9. Sealing mechanism; 91. Sealing plate; 92. Spring; 93. Extrusion column. Detailed Implementation
[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model. Example
[0020] refer to Figures 2 to 4This utility model provides a waterproof dense busbar sealing connection device, including two outer shells 1. Bolts pass through the pre-set screw holes of the outer shell 1 and the corresponding through holes of the right angle plate 2 and are tightened to form a stable right angle support structure. On the adjacent side of the two outer shells 1, a connecting frame 3 is welded to the outside of the right angle plate 2 using a welding process. The weld is subjected to strength treatment so that the connecting frame 3 and the outer shell 1 form a rigid connection. On the adjacent side of the two connecting frames 3, multiple guide plates 4 are vertically fixedly connected. The guide plates 4 on the two connecting frames 3 are staggered with each other, and a space is reserved between each pair of guide plates 4 that is just suitable for the thickness of the insulation plate 5. Multiple insulating plates 5 are slidably connected to the outside of multiple guide plates 4. The insulating plates 5 are rectangular plate structures with good insulation properties, which can be smoothly slid into the guide plates 4 to provide electrical insulation. They are fixed by screws passing through two connecting frames 3, multiple guide plates 4 and multiple insulating plates 5. The screws pass through the through holes of the connecting frames 3, the corresponding holes of the guide plates 4 and the clearance holes of the insulating plates 5 in sequence. After tightening, these components are tightly connected into a whole. Long strip guide plates 6 are fixedly connected to the upper and lower sides of the outer shell 1. Their length direction is consistent with the axis of the outer shell 1 and their surface is provided with a smooth guide plane that has been finely machined. Two U-shaped frame structure mounting brackets 7 are slidably connected to the outside of each pair of guide plates 6. The inner groove of the mounting bracket 7 corresponds to and fits the guide plane of the guide plate 6, allowing it to slide smoothly along the guide plate 6. The two mounting brackets 7 are rotatably connected to the mounting mechanism 8 through a rotating shaft. The rotating shaft passes through the side plate of the mounting bracket 7 and the central shaft hole of the mounting mechanism 8, allowing the mounting mechanism 8 to rotate flexibly around the shaft. Both mounting mechanisms 8 include arc-shaped grips 82 with anti-slip textures on the surface, which are convenient for hand gripping and applying force. The two grips 82 are rotatably connected to the inside of the two mounting brackets 7 through bearings. The outer ring of the bearing is fixed in the side plate hole of the mounting bracket 7, and the inner ring is interference-fitted with the rotating shaft of the grip 82. Both grips 82 have a circular rotating plate 81 with a diameter larger than the width of the grip 82 fixedly connected to their opposite sides. When rotating, the grips 82 can rotate synchronously. A reset assembly 83 for providing reset power is fixedly connected to the outside of the grips 82. Both reset assemblies 83 include rectangular side plates 831 vertically fixed to the outer edge of the grip plate 82, which move synchronously with the movement of the grip plate 82. A torsion spring 832 is fixedly connected to the outside of the side plate 831; one end of the torsion spring 832 hooks onto a lug on the side plate 831, and the other end is fixed to a fixed post inside the mounting bracket 7. The outside of the two grip plates 82 are slidably connected to the inside of two other mounting brackets 7. The inside of the other two mounting brackets 7 is provided with sliding grooves matching the grip plates 82, allowing the grip plates 82 to slide and rotate within the grooves. The outside of the two outer shells 1 are slidably connected to the inner walls of the multiple mounting brackets 7 via guide plates 6. When the mounting brackets 7 slide along the guide plates 6, they can drive the outer shells 1 to move relative to each other. The outside of the two side plates 831 are slidably connected to vertical sliding grooves inside two of the mounting brackets 7. The outside of the multiple mounting brackets 7 are slidably connected to the guide planes of the multiple guide plates 6 via grooves, ensuring the stability of the mounting brackets 7 during movement.
[0021] refer to Figure 1 , Figure 5 and Figure 6 The two mounting brackets 7 each have a sealing mechanism 9 fixedly connected inside, which plays a crucial role in waterproofing. Each sealing mechanism 9 includes a sealing plate 91 made of elastic rubber material, shaped to match the opening of the mounting bracket 7, fixed inside the mounting bracket 7. The exterior of the two sealing plates 91 is fixedly connected inside two of the mounting brackets 7. The inner walls of the left and right ends of the other two mounting brackets 7 are bolted with springs 92 whose axes are aligned with the direction of movement of the sealing plates 91. Cylindrical extrusion columns 93 with hemispherical ends to reduce friction are fixedly connected to adjacent sides of the multiple springs 92. The exterior of the multiple extrusion columns 93 is slidably connected inside the other two mounting brackets 7. The inner wall of the mounting bracket 7 has guide holes matching the extrusion columns 93. The exterior of the two extrusion columns 93 is slidably connected inside the left and right ends of the sealing plates 91. The sealing plates 91 have corresponding through holes. The exterior of the two sealing plates 91 is slidably connected inside the other two mounting brackets 7. The inner side of the mounting bracket 7 has guide grooves, allowing the sealing plates 91 to slide within the grooves and undergo elastic deformation.
[0022] The working principle is as follows: First, two right-angle plates 2 are fixed to the outer shell 1 with bolts. Then, a connecting frame 3 is welded to the outside of each pair of right-angle plates 2. The connecting frames 3 on the two outer shells 1 to be connected are staggered. During installation, one connecting frame 3 will be inserted into the other connecting frame 3, and multiple guide plates 4 inside the outer shell 1 will be staggered, with space between each pair of guide plates 4. Multiple insulating plates 5 are inserted into the space. Then, bolts are passed through the two connected frames 3, multiple guide plates 4, and multiple insulating plates 5 to complete the installation between the two outer shells 1. Then, the four mounting frames 7 are divided into two pairs, and the mounting frames 7 are slid along the guide plate 6 for installation. At the same time, the mounting frame 7 that drives the sealing plate 91 is inserted into the interior without the mounting frame 7. Before installation, the grip plate 82 is held and a counterclockwise rotation force is applied so that the grip plate 82 is fully engaged. Entering the interior of the mounting bracket 7, avoiding any exposed gaps, the rotating plate 81 is then rotated. The rotating plate 81 causes the side plate 831 to slide and compress the torsion spring 832, allowing the torsion spring 832 to store elastic potential energy. Subsequently, based on a force in the opposite direction of the rotating plate 81, it rotates and resets. After the two mounting brackets 7 are fully engaged, the force on the rotating plate 81 is released. The reset force of the torsion spring 832 is transmitted to the gripping plate 82, allowing the gripping plate 82 to reset and complete the installation of the two mounting brackets 7. When the sealing plate 91 slides into the interior of the other mounting bracket 7, it will abut against the compression column 93, causing the compression column 93 to slide and compress the spring 92. After the sealing plate 91 has slid into the interior of the mounting bracket 7, the reset force of the spring 92 pushes the compression column 93 against the sealing plate 91, causing the sealing plate 91 to deform, thereby improving the sealing effect.
Claims
1. A waterproof, dense busbar sealing connection device, comprising two housings (1), characterized in that: Two right-angle plates (2) are fixedly connected to one end of each of the two outer shells (1), and a connecting frame (3) is fixedly connected to one side of each of the two outer shells (1). Guide plates (6) are fixedly connected to the upper and lower sides of each outer shell (1). Two mounting brackets (7) are slidably connected to the outside of each pair of guide plates (6). An installation mechanism (8) is rotatably connected inside each pair of mounting brackets (7). A sealing mechanism (9) is fixedly connected inside each pair of mounting brackets (7). Both of the mounting mechanisms (8) include a grip plate (82), the outside of the two grip plates (82) are rotatably connected to the inside of the two mounting brackets (7), a rotating plate (81) is fixedly connected to the opposite side of the two grip plates (82), and a reset assembly (83) is fixedly connected to the outside of the grip plates (82).
2. The sealing connection device for a waterproof dense busbar according to claim 1, characterized in that, Multiple guide plates (4) are fixedly connected to the adjacent side of the two connecting frames (3), and multiple insulating plates (5) are slidably connected to the outside of the multiple guide plates (4). The multiple guide plates (4) are fixed by screws passing through the two connecting frames (3), the multiple guide plates (4) and the multiple insulating plates (5).
3. The sealing connection device for a waterproof dense busbar according to claim 1, characterized in that, Both of the reset components (83) include a side plate (831) which is externally fixed to the outside of the grip plate (82) and a torsion spring (832) is externally fixed to the outside of the side plate (831).
4. The sealing connection device for a waterproof dense busbar according to claim 3, characterized in that, The exterior of the two torsion springs (832) is fixedly connected to the interior of the two mounting brackets (7), and the exterior of the two side plates (831) is slidably connected to the interior of the two mounting brackets (7).
5. The sealing connection device for a waterproof dense busbar according to claim 1, characterized in that, Both sealing mechanisms (9) include sealing plates (91), and the exterior of the two sealing plates (91) are respectively fixedly connected to the interior of two of the mounting brackets (7). Springs (92) are fixedly connected to the inner walls of the left and right ends of the other two mounting brackets (7), and compression columns (93) are fixedly connected to the adjacent sides of the multiple springs (92).
6. The sealing connection device for a waterproof dense busbar according to claim 5, characterized in that, The exterior of the two extrusion columns (93) is slidably connected to the interior of the left and right ends of the sealing plate (91), and the exterior of the two sealing plates (91) is slidably connected to the interior of the other two mounting brackets (7).
7. The sealing connection device for a waterproof dense busbar according to claim 5, characterized in that, The exterior of multiple mounting brackets (7) is slidably connected to the exterior of multiple guide plates (6), and the exterior of multiple extrusion columns (93) is slidably connected to the interior of two other mounting brackets (7).
8. The sealing connection device for a waterproof dense busbar according to claim 7, characterized in that, The two grips (82) are slidably connected to the interior of the other two mounting brackets (7), and the two outer shells (1) are slidably connected to the inner walls of the multiple mounting brackets (7).
