Grounding cable branch box quick plug-in terminal
By incorporating a dustproof plate and a frosted block into the quick-connect grounding terminal, the problem of dust intrusion is solved, achieving terminal sealing and cleanliness, and ensuring the stability and reliability of the electrical connection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGXI MINGZHENG INTELLIGENT ELECTRIC CO LTD
- Filing Date
- 2025-06-10
- Publication Date
- 2026-06-23
AI Technical Summary
When the quick-connect grounding terminal is disconnected, impurities and dust can easily enter the terminal, affecting the stability of the connection.
A quick-connect terminal for grounding wires with a dustproof plate and a frosted block was designed. The terminal is sealed and cleaned by the cooperation of the sliding plate and the operating lever to prevent dust from entering, and the oxide layer is removed by the frosted block to maintain conductivity.
It effectively prevents dust from entering the terminal, maintains connection stability, and can quickly clean the oxide layer, ensuring the reliability of electrical connections.
Smart Images

Figure CN224400751U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of plug-in terminal technology, and more specifically, to a quick-connect grounding terminal for a cable branch box. Background Technology
[0002] The quick-connect terminal for grounding wires in cable branch boxes is a specialized connection device used in cable branch box grounding systems to enable rapid connection and disconnection of grounding wires without the need for tools. These terminals typically employ spring clamping or lever crimping principles, offering advantages such as ease of operation, reliable contact, and corrosion resistance.
[0003] When the quick-connect grounding terminal is disconnected from the grounding wire in the cable branch box, impurities and dust can easily enter the interior of the grounding terminal, causing contamination of the grounding terminal and affecting the stability of the subsequent connection with the grounding wire in the cable branch box. Summary of the Invention
[0004] To address the problems existing in the prior art, the purpose of this utility model is to provide a quick-connect terminal for the grounding wire of a cable branch box. When disconnecting the wire connection in the cable branch box, the grounding terminal is sealed to effectively prevent dust and impurities from entering the interior of the grounding terminal.
[0005] To achieve the above objectives, the present invention adopts the following technical solution;
[0006] The grounding wire quick-connect terminal of the cable branch box includes a grounding copper busbar. A grounding terminal is fixedly connected to the top of the grounding copper busbar. The grounding terminal is square-shaped. Two connecting slots are opened on the grounding copper busbar. Connecting blocks are slidably connected to the inner walls of the two connecting slots. Springs are fixedly connected to opposite sides of the two connecting blocks. Metal clamps are fixedly connected to the top of the two connecting blocks. Dustproof plates are fixedly connected to the top of the two metal clamps. The bottom of the two dustproof plates is in contact with the grounding terminal. A sliding plate is slidably connected to the inner wall of the grounding terminal. An operating rod is fixedly connected to the top of the sliding plate. Two through slots are opened on the sliding plate. The inner walls of the two through slots are in contact with the two metal clamps respectively. A driving block is fixedly connected to opposite sides of the two metal clamps. Two inclined surfaces are provided on the two driving blocks.
[0007] As a further description of the above technical solution:
[0008] A handle is fixedly connected to the top of the operating lever, and a rubber sleeve is fitted onto the handle and fixedly connected thereto.
[0009] As a further description of the above technical solution:
[0010] The inner wall of the through groove is embedded with a frosted block, and one side of the frosted block is in contact with the metal clamp.
[0011] As a further description of the above technical solution:
[0012] A limiting rod is fixedly connected to the inner wall of the connecting groove, and the connecting block is sleeved on the limiting rod and slidably connected to it.
[0013] As a further description of the above technical solution:
[0014] Both sides of the grounding copper busbar are threaded with screws, and the opposite ends of the two screws are rotatably connected to adjustment plates. The opposite sides of the two adjustment plates are in contact with two springs respectively.
[0015] Compared with existing technologies, the advantages of this utility model are:
[0016] This solution can seal the grounding terminal when it is not connected to the wires in the cable branch box, effectively preventing dust and impurities from entering the grounding terminal and causing contamination. It can also quickly clean the oxide layer on the surface of the metal clamp, maintaining the stability of the electrical connection. Attached Figure Description
[0017] Figure 1 One of the perspective views of this utility model;
[0018] Figure 2 This is a second perspective view of the present utility model;
[0019] Figure 3 This is a third perspective view of the present utility model;
[0020] Figure 4 This is a cross-sectional view of the present invention.
[0021] Explanation of the labels in the diagram:
[0022] 1. Grounding copper busbar; 2. Grounding terminal; 3. Connecting groove; 4. Connecting block; 5. Spring; 6. Metal clamp; 7. Dustproof plate; 8. Slide plate; 9. Operating lever; 10. Through groove; 11. Drive block; 12. Inclined surface; 13. Handle; 14. Rubber sleeve; 15. Frosted block; 16. Limiting rod; 17. Screw; 18. Adjusting plate. Detailed Implementation
[0023] 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;
[0024] Please see Figures 1-4In this utility model: the quick-connect terminal for the grounding wire of the cable branch box includes a grounding copper busbar 1, a grounding terminal 2 fixedly connected to the top of the grounding copper busbar 1, the grounding terminal 2 being square in shape, two connecting grooves 3 being provided on the grounding copper busbar 1, connecting blocks 4 being slidably connected to the inner walls of the two connecting grooves 3, springs 5 being fixedly connected to the opposite sides of the two connecting blocks 4, metal clamps 6 being fixedly connected to the top of the two connecting blocks 4, dustproof plates 7 being fixedly connected to the top of the two metal clamps 6, the bottom of the two dustproof plates 7 being in contact with the grounding terminal 2, a sliding plate 8 being slidably connected to the inner wall of the grounding terminal 2, an operating lever 9 being fixedly connected to the top of the sliding plate 8, two through grooves 10 being provided on the sliding plate 8, the inner walls of the two through grooves 10 being in contact with the two metal clamps 6 respectively, a driving block 11 being fixedly connected to the opposite side of the two metal clamps 6, and two inclined surfaces 12 being provided on the two driving blocks 11.
[0025] In this invention, when connecting the grounding wire of the cable branch box, the user first presses down the operating lever 9. The operating lever 9 will cause the sliding plate 8 to descend. During the descent of the sliding plate 8, the through groove 10 will slide along the surface of the two metal clamps 6 until the through groove 10 contacts the drive block 11. At this time, the descent of the sliding plate 8 will cause the through groove 10 to press against the inclined surface 12 on the drive block 11. After being pressed, the inclined surface 12 of the drive block 11 will shift, and the two metal clamps 6 will move away from each other. During this process, the metal clamps 6 will cause the connecting block 4 to slide on the inner wall of the connecting groove 3 and compress the spring 5 until the through groove 10 moves to the middle vertical plane position of the drive block 11. At this time, the distance between the two metal clamps 6 is the largest, and then the connecting wire end of the cable branch box can be inserted. Insert the wire into the grounding terminal 2 until the end of the grounding wire is between the two metal clamps 6. Then, press down the operating lever 9. At this time, the slide plate 8 will descend, and the through slot 10 will slide from the vertical plane on the drive block 11 to the two inclined surfaces 12 at the bottom. During this process, the spring force of the spring 5 will be released, and the two metal clamps 6 will move closer to each other until the slide plate 8 slides past the drive block 11. At this time, the spring 5 will push the metal clamps 6 to press tightly against the end of the grounding wire of the cable branch box, thereby clamping the end of the grounding wire of the cable branch box. The grounding wire of the cable branch box is electrically connected to the grounding copper busbar 1 through the metal clamps 6 and the connecting block 4, thereby achieving the effect of grounding the grounding wire of the cable branch box. The process is very convenient and quick, and can be achieved simply by controlling the operating lever 9.
[0026] When it is not necessary to connect the grounding wire of the cable branch box, the slide plate 8 and the two dustproof plates 7 can seal the top of the grounding terminal 2, thereby effectively preventing dust and debris from entering the grounding terminal 2, so that the grounding wire of the cable branch box can be stably connected to the grounding terminal 2, improving the stability of the device.
[0027] Please see Figures 1-3 The top of the operating lever 9 is fixedly connected to a handle 13, and a rubber sleeve 14 is fixedly connected to the handle 13.
[0028] In this invention, the handle 13 facilitates the user's control of the operating lever 9 in raising and lowering, thereby improving the practicality of the device. The rubber sleeve 14 increases friction, making it easier for the user to control the operating lever 9, and also provides insulation, improving the safety of the device.
[0029] Please see Figure 4 The inner wall of the through groove 10 is fitted with a frosted block 15, and one side of the frosted block 15 is in contact with the metal clamp 6.
[0030] In this invention, after prolonged use, when the surface of the metal clamp 6 is oxidized by air and affects the electrical connection, the user pulls the operating lever 9 up and down to move the slide plate 8 up and down. During this process, the abrasive block 15 in the through groove 10 slides along the surface of the metal clamp 6, thereby polishing away the oxide layer on the surface of the metal clamp 6, thus restoring the conductivity of the metal clamp 6 and improving the practicality of the device.
[0031] Please see Figure 4 In this case, the inner wall of the connecting groove 3 is fixedly connected to the limiting rod 16, and the connecting block 4 is sleeved on the limiting rod 16 and slidably connected to it.
[0032] In this invention, the limiting rod 16 can effectively limit the connection block 4, allowing the connection block 4 to effectively contact the grounding copper busbar 1 to maintain electrical connection, thereby improving the stability of the device.
[0033] Please see Figures 2-4 Among them, the grounding copper busbar 1 has screws 17 threadedly inserted on both sides of its left and right sides, and adjusting plates 18 are rotatably connected to the opposite ends of the two screws 17. The opposite sides of the two adjusting plates 18 are in contact with two springs 5 respectively.
[0034] In this invention, rotating the screw 17 can drive the adjusting plate 18 to slide in the corresponding connecting groove 3. During the sliding process, the adjusting plate 18 will squeeze the spring 5, thereby increasing the force of the spring 5 on the connecting block 4, which in turn can improve the stability of the metal clamp 6 clamping the grounding wire end of the cable branch box.
[0035] The above are merely preferred embodiments of this utility model; however, 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 its improved concept, should be included within the scope of protection of this utility model.
Claims
1. A quick-connect terminal for the grounding wire of a cable branch box, comprising a grounding copper busbar (1), characterized in that: The grounding copper busbar (1) has a grounding terminal (2) fixedly connected to its top. The grounding terminal (2) is square in shape. The grounding copper busbar (1) has two connecting grooves (3). The inner walls of the two connecting grooves (3) are slidably connected to connecting blocks (4). The opposite sides of the two connecting blocks (4) are fixedly connected to springs (5). The tops of the two connecting blocks (4) are fixedly connected to metal clamps (6). The tops of the two metal clamps (6) are fixedly connected to dustproof plates (7). The bottom of both dustproof plates (7) is in contact with the grounding terminal (2). The inner wall of the grounding terminal (2) is slidably connected to a sliding plate (8). The top of the sliding plate (8) is fixedly connected to an operating rod (9). Two through slots (10) are opened on the sliding plate (8). The inner walls of the two through slots (10) are in contact with two metal clamps (6) respectively. A driving block (11) is fixedly connected to the opposite side of the two metal clamps (6). Two inclined surfaces (12) are provided on the two driving blocks (11).
2. The quick-connect terminal for the grounding wire of the cable branch box according to claim 1, characterized in that: The top of the operating lever (9) is fixedly connected to a handle (13), and a rubber sleeve (14) is fixedly connected to the handle (13).
3. The quick-connect terminal for the grounding wire of the cable branch box according to claim 1, characterized in that: The inner wall of the through groove (10) is fitted with a frosted block (15), and one side of the frosted block (15) is in contact with the metal clamp (6).
4. The quick-connect terminal for the grounding wire of the cable branch box according to claim 1, characterized in that: The inner wall of the connecting groove (3) is fixedly connected to the limiting rod (16), and the connecting block (4) is sleeved on the limiting rod (16) and slidably connected to it.
5. The quick-connect terminal for the grounding wire of the cable branch box according to claim 1, characterized in that: Both sides of the grounding copper busbar (1) are threaded with screws (17), and the opposite ends of the two screws (17) are rotatably connected with adjustment plates (18). The opposite sides of the two adjustment plates (18) are in contact with two springs (5).