A cable joint for a branch box
Patent Information
- Application Number
- CN202522294010.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-30
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-10-30
AI Technical Summary
Traditional cable connectors are time-consuming and labor-intensive to install and remove inside the branch box, and the hidden locking components make it difficult to quickly locate faults, thus prolonging maintenance time.
It adopts a locking pin mechanism with male and female heads. Through the cooperation of the dial and the locking block, the pin rod is automatically locked or unlocked by the return spring, realizing quick connection and separation. The operation is simple and requires no tools.
It significantly reduces the operation time of cable joints, and is especially suitable for rapid cable splicing and maintenance in confined spaces, thus improving maintenance efficiency.
Smart Images

Figure CN224935346U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of cable connectors for branch boxes, and specifically relates to a cable connector for branch boxes. Background Technology
[0002] A cable connector for a branch box is an electrical accessory specifically designed for use in power branch boxes to connect or branch cables. Its main function is to mechanically fix and electrically connect the ends of different cables in the power distribution node of the branch box, ensuring that electrical energy can be safely and reliably distributed from the main cable to the branch cable, or to achieve the connection and transition between different cables.
[0003] Currently, the installation and removal of traditional cable connectors require tools (such as wrenches and screwdrivers) and precise alignment. Inside the confined space of a branch box, operators must repeatedly adjust the connector angle to achieve tightening, which is not only time-consuming and labor-intensive but also prone to damage due to improper operation. Furthermore, some connectors have concealed locking mechanisms, making it difficult to quickly locate the problem in case of malfunction, requiring complete disassembly for maintenance and extending power outage repair time. Therefore, those skilled in the art have provided a cable connector for branch boxes to solve the aforementioned problems. Utility Model Content
[0004] The purpose of this utility model is to provide a cable connector for a branch box that is simple in structure and reasonably designed in order to solve the above problems.
[0005] This utility model achieves the above-mentioned objective through the following technical solution: It includes a male connector and a female connector, which are rotatably engaged by a locking pin mechanism. The input end of the female connector is electrically connected to a cable. A connecting ring is fixedly installed on the side wall of the male connector. Locking grooves are jointly formed on the top and bottom of the connecting ring and the male connector. The locking pin mechanism includes locking blocks rotatably connected to the top and bottom of the other side wall of the female connector. Rotation grooves are formed on the top and bottom of the female connector, located on one side of each of the two locking blocks. One end of each locking block rotatably penetrates the inner side wall of the corresponding rotation groove. A dial is rotatably connected to the inner side wall of each of the two rotation grooves. One end of each locking block is fixedly connected to the side wall of the corresponding dial. The two locking blocks and the two locking grooves respectively cooperate and are fixed by pins.
[0006] As a further optimization of this utility model, the two locking blocks are symmetrically distributed, the two locking grooves are symmetrically distributed, and a through groove is fixedly opened on one side wall of each of the two locking grooves. The two pins are respectively slidably connected to the inner side wall of the corresponding through groove.
[0007] As a further optimization of this utility model, a return spring is fixedly installed on the side wall of each of the two through slots, and the two pins are respectively fixedly installed on the other side wall of the corresponding return spring.
[0008] As a further optimization of this utility model, the side walls of the two locking blocks are provided with pin holes that cooperate with the corresponding pins, and the corresponding pins slide through the corresponding pin holes.
[0009] As a further optimization of this utility model, the two pins respectively penetrate the two side walls of the corresponding locking blocks and are engaged with the inner side wall of the corresponding locking groove.
[0010] As a further optimization of this utility model, pull plates that penetrate the top and bottom of the corresponding through slots are fixedly installed at the top and bottom positions of the two reset springs, respectively, and an adjustment ring that is fixedly connected to the two pull plates is slidably sleeved on the outer side wall of the male head.
[0011] The beneficial effects of this utility model are as follows:
[0012] 1. This utility model achieves initial positioning through the cooperation of the dial wheel and the locking block, and then automatically completes the locking by driving the pin rod with the help of the return spring. The entire connection process can be completed quickly by simply rotating the dial wheel. When separating, pulling the adjustment ring will simultaneously drive the pull plate to pull out the pin rod, and rotating the dial wheel in the opposite direction will separate the male and female heads. There is no need to disassemble multiple parts, which greatly shortens the operation time. It is especially suitable for scenarios where the space inside the branch box is limited and cable splicing or maintenance needs to be completed quickly.
[0013] 2. In this utility model, the pin and the return spring on the inner side wall of the through groove form an elastic drive structure: During installation, simply push the adjusting ring to drive the pull plate to compress the return spring, which will cause the pin to retract into the through groove. After the locking block is embedded in the locking groove, release the adjusting ring, and the return spring will automatically push the pin into the pin hole to complete the fixation. Disassembly can be performed by reversing the operation, and no tools are required throughout the process. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall axonometric structure of this utility model;
[0015] Figure 2 This is a frontal view of the partially exploded structure of this utility model;
[0016] Figure 3 This is a rear-view partial exploded structure diagram of this utility model;
[0017] Figure 4 This is a utility model Figure 3 Enlarged structural diagram at point A in the diagram;
[0018] Figure 5 This is a utility model Figure 4Enlarged structural diagram at point B in the diagram;
[0019] Figure 6 This is a schematic diagram of the connection structure between the male and female connectors of this utility model.
[0020] In the diagram: 1. Male connector; 2. Female connector; 3. Cable; 4. Adjusting ring; 5. Locking block; 6. Connecting ring; 7. Locking groove; 8. Pin hole; 9. Pin rod; 10. Through groove; 11. Return spring; 12. Pull plate; 13. Dial wheel; 14. Rotating groove. Detailed Implementation
[0021] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.
[0022] Example 1
[0023] like Figure 1 , Figure 2 , Figure 3 , Figure 6 As shown, a cable connector for a branch box comprises two parts: a male connector 1 and a female connector 2. The male connector 1 and the female connector 2 are rotatably engaged by a locking pin mechanism. The input end of the female connector 2 is electrically connected to a cable 3 for transmitting power signals. A connecting ring 6 is fixedly installed on the side wall of the male connector 1. The connecting ring 6 and the top and bottom of the male connector 1 are respectively provided with locking grooves 7. The two locking grooves 7 are symmetrically distributed and serve as the engagement carrier of the locking pin mechanism.
[0024] like Figures 1-6 As shown, the locking pin mechanism includes locking blocks 5 rotatably connected to the top and bottom of the other side wall of the male head 2. The two locking blocks 5 are also symmetrically distributed and respectively cooperate with the two locking grooves 7. The side walls of the two locking blocks 5 and the side walls of the two locking grooves 7 are respectively provided with pin holes 8. The pin holes 8 cooperate with pin rods 9. The two pin rods 9 are respectively slidably connected to the inner side wall of the through groove 10 fixedly opened on the side wall of the corresponding locking groove 7. The male head 1 and the female head 2 are fixed by the pin rods 9 passing through the pin holes 8 on the two side walls of the corresponding locking blocks 5.
[0025] like Figures 1-6As shown, rotating grooves 14 are respectively provided at the top and bottom of the sub-head 2 and on one side of the two locking blocks 5. One end of each locking block 5 rotatably passes through the inner wall of the corresponding rotating groove 14. The inner walls of the two rotating grooves 14 are respectively rotatably connected to the dials 13. One end of each locking block 5 is fixedly connected to the side wall of the corresponding dial 13. When it is necessary to rotate the locking block 5, rotating the dial 13 will drive the locking block 5 to rotate in the rotating groove 14, thereby causing the locking block 5 to engage or disengage from the locking groove 7.
[0026] like Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 As shown, a return spring 11 is fixedly installed on the side wall of the through groove 10, and a pin 9 is fixedly installed on the other side wall of the return spring 11. The return spring 11 provides a continuous clamping force for the pin 9. Pull plates 12 are fixedly installed at the top and bottom positions of the two return springs 11, respectively. The pull plates 12 pass through the top and bottom of the corresponding through groove 10. An adjusting ring 4 is slidably sleeved on the outer side wall of the male head 1. The adjusting ring 4 is fixedly connected to the two pull plates 12. By sliding the adjusting ring 4, the two pull plates 12 can be moved synchronously, thereby controlling the extension and retraction of the pin 9.
[0027] It should be noted that when this utility model is in use: during the connection process, the sub-head 2 establishes an electrical connection with the cable 3 through the input end, providing a basic path for power transmission. The operator rotates the dial 13 in the top and bottom rotating grooves 14 of the sub-head 2. Since one end of the locking block 5 is fixedly connected to the side wall of the dial 13, the rotation of the dial 13 will drive the locking block 5 to rotate synchronously in the rotating groove 14. When the locking block 5 rotates to the position corresponding to the locking groove 7 on the connecting ring 6 on the side wall of the male connector 1, continue to rotate the dial 13 so that the locking block 5 is engaged in the symmetrically distributed locking groove 7, completing the initial positioning. At this time, the return spring 11 in the through groove 10 is in a naturally extended state. Its elastic force pushes the pin 9 to slide along the inner side wall of the through groove 10, passing through the pin hole 8 on the side wall of the locking block 5 and the locking groove 7, and firmly locking the locking block 5 in the locking groove 7, thereby realizing the mechanical fixation of the male connector 1 and the female connector 2, ensuring the stability of the connection between the two, and providing a solid physical basis for the transmission of electrical energy from the female connector 2 to the male connector 1.
[0028] When it is necessary to separate the male connector 1 and the female connector 2, the operator pulls the adjusting ring 4 sleeved on the outer wall of the male connector 1. Since the adjusting ring 4 is fixedly connected to the pull plate 12 at the top and bottom of the through groove 10, the movement of the adjusting ring 4 will drive the pull plate 12 to move synchronously. The pull plate 12 then pulls the return spring 11 on the side wall of the through groove 10, causing the return spring 11 to undergo elastic deformation and contract. At the same time, it drives the pin 9 to slide in the opposite direction along the inner side wall of the through groove 10 and be pulled out from the pin hole 8, releasing the lock on the locking block 5. Then, the dial 13 is rotated in the opposite direction, driving the locking block 5 to rotate out from the locking groove 7, realizing the separation of the male connector 1 and the female connector 2, which facilitates the maintenance or replacement of the cable connector.
[0029] The above-described embodiments are merely examples of several implementations of this utility model. The descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model patent. It should be noted that for those skilled in the art, several modifications and improvements can be made without departing from the concept of this utility model, and these all fall within the protection scope of this utility model.
Claims
1. A cable connector for a branch box, characterized in that: Includes a male connector (1) and a female connector (2), which are rotatably engaged by a locking pin mechanism. The input end of the female connector (2) is electrically connected to a cable (3). A connecting ring (6) is fixedly installed on the side wall of the male connector (1). The top and bottom of the connecting ring (6) and the male connector (1) are respectively provided with locking grooves (7). The locking pin mechanism includes a locking block (5) rotatably connected to the top and bottom of the other side wall of the female connector (2). The top of the female connector (2) Rotating grooves (14) are respectively provided at the bottom and on one side of the two locking blocks (5). One end of the two locking blocks (5) respectively rotates through the inner side wall of the corresponding rotating groove (14). The inner side wall of the two rotating grooves (14) is rotatably connected to a dial wheel (13). One end of the two locking blocks (5) is fixedly connected to the side wall of the corresponding dial wheel (13). The two locking blocks (5) and the two locking grooves (7) respectively cooperate and are fixed by a pin (9).
2. A cable connector for a branch box according to claim 1, characterized in that: The two locking blocks (5) are symmetrically distributed, the two locking grooves (7) are symmetrically distributed, and a through groove (10) is fixedly opened on one side wall of each of the two locking grooves (7). The two pins (9) are slidably connected to the inner side wall of the corresponding through groove (10).
3. A cable connector for a branch box according to claim 2, characterized in that: Both of the through slots (10) are fixedly installed with return springs (11) on their side walls, and the two pins (9) are fixedly installed on the other side wall of the corresponding return springs (11).
4. A cable connector for a branch box according to claim 3, characterized in that: The side walls of the two locking blocks (5) are provided with pin holes (8) that cooperate with the corresponding pins (9), and the corresponding pins (9) slide through the corresponding pin holes (8).
5. A cable connector for a branch box according to claim 4, characterized in that: The two pins (9) pass through the two side walls of the corresponding locking blocks (5) and are engaged with the inner side wall of the corresponding locking grooves (7).
6. A cable connector for a branch box according to claim 5, characterized in that: The top and bottom positions of the two reset springs (11) are respectively fixedly installed with pull plates (12) that pass through the top and bottom of the corresponding through slots (10), and the outer side wall of the male head (1) is slidably fitted with an adjusting ring (4) that is fixedly connected to the two pull plates (12).
