A T-junction box avoiding cable tangling
By setting through holes, slots, and limiting mechanisms on the T-junction box body, the problem of cables getting tangled inside the box is solved, enabling rapid cable installation and positioning, and improving operational convenience and protection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- AVIC CHANGSHA DESIGN & RES INST CO LTD
- Filing Date
- 2022-12-07
- Publication Date
- 2026-04-28
AI Technical Summary
In existing T-junction boxes, cables are prone to tangling inside the box, making installation complicated and disassembly inconvenient.
The T-junction box body is equipped with through holes, slots, mounting plates, and limiting mechanisms, including detachable connecting plates, limiting rods, and return springs. Combined with the clips and fixing brackets on the bottom plate and side plates, it enables rapid installation and positioning of cables.
It enables quick disassembly and installation of cables, avoids cables from getting tangled inside the enclosure, and provides effective protection and position adjustment functions.
Smart Images

Figure CN115864262B_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of T-junction box technology, and particularly relates to a T-junction box that avoids cable tangling. Background Technology
[0002] T-junction boxes use copper busbars to connect cables inside the box to distribute power. They are suitable for high-rise buildings, industrial plants, and engineering experimental bases.
[0003] Chinese utility model patent CN209748170U discloses a T-junction box, which includes a box body, side plates, a cover plate, and phase bars. A top cover is welded to the top of the box body, a bottom plate is welded to the bottom, and side plates are welded to both sides of the box body. The side plates have bent structures on their edges. The back of the box body has evenly distributed raised holes. Insulators are installed inside the raised holes, and PE bars are evenly installed outside the raised holes. The insulators and PE bars are fixed to the back of the box body with M5×10 bolts. Phase bars are vertically installed on the insulators with M6×16 bolts. The side plates, top cover, and bottom plate of this T-junction box all adopt an integrated bent structure, eliminating the need to weld triangular plates or any fasteners during cover plate installation, thus reducing production costs. Furthermore, since the efficiency of bending using CNC equipment is much greater than that of welding, the production efficiency of the box body is improved. However, it is inconvenient to disassemble the part of the cable that passes through the T-junction box during use. The cable installation operation is complicated and cumbersome, and the cables are easy to get tangled together inside the box, making it inconvenient to position the cables. Summary of the Invention
[0004] The purpose of this invention is to provide a T-junction box that avoids cable tangling, thereby solving the technical problem that cables are easily tangled together inside the box.
[0005] To solve the above-mentioned technical problems, the specific technical solution of the present invention is as follows:
[0006] A T-junction box for preventing cable tangling, the T-junction box includes a T-junction box body, at least one terminal board is provided on the back plate of the T-junction box body, and through holes are provided on both the upper and lower end faces of the T-junction box body, the through holes communicating with the inner cavity of the T-junction box body.
[0007] The through hole has a slot on the side facing the box door for cables to enter and exit the through hole. The slot is provided with a mounting plate, and the mounting plate has connecting plates on both sides. The connecting plates are detachably connected to the T-junction box body.
[0008] The bottom plate of the T-junction box body is provided with multiple sets of limiting mechanisms. The limiting mechanism includes a first locking block and a second locking block arranged opposite to each other. There is a gap between the first locking block and the second locking block. The first locking block, the second locking block and the bottom plate of the bottom plate together form a cable accommodating space.
[0009] The inner wall of the side plate of the T-junction box body is provided with a fixing frame, and multiple connecting slots are provided on the fixing frame. A connecting cylinder is engaged inside the connecting slot. A third locking block is provided at one end of the connecting cylinder, and a fourth locking block is provided at the other end of the connecting cylinder.
[0010] Therefore, this invention provides a slot on the side of the through hole facing the box door, and a detachable connecting plate on the slot, which allows for quick disassembly of the part of the cable passing through the T-junction box, facilitating cable installation. Limiting mechanisms and fixing brackets are provided on the bottom plate and side plate of the T-junction box body, which can effectively adjust the position of the positioning cable according to different cable connection requirements, effectively limit the cable, prevent the cable from getting tangled inside the box, and protect the cable.
[0011] Furthermore, the mounting plate has an L-shaped cross-section, and the side of the mounting plate near the through hole forms part of the through hole wall.
[0012] Furthermore, the connecting plate has a slot on its upper surface, and the bottom plate has a limiting member that cooperates with the connecting plate. The limiting member includes a limiting rod that is rotatably connected to the bottom plate. A return spring is sleeved on the outer periphery of the limiting rod, and a first limiting block is provided at the top of the limiting rod. The first limiting block passes through the slot and fixes the connecting plate on the bottom plate.
[0013] Furthermore, the slot is a non-circular slot, and the shape of the first limiting block matches the shape of the slot.
[0014] Furthermore, the connecting groove includes a horizontally opened square groove, one end of which extends outward to the outer end of the fixing frame, and the other end of which connects to a cylindrical groove located below the side of the square groove. A connecting cylinder is engaged with the cylindrical groove.
[0015] Furthermore, the fourth locking block is connected to the connecting cylinder via a second limiting block slot, and a connecting block is provided between the third locking block and the connecting cylinder. The cross-section of the third limiting block is L-shaped.
[0016] Furthermore, the limiting mechanisms are arrayed on the upper surface of the base plate.
[0017] The T-junction box of the present invention, which avoids cable tangling, has the following advantages:
[0018] 1) The T-junction box of the present invention allows for quick disassembly of the portion through which the cable passes, facilitating cable installation. It can also effectively adjust the position of the cable according to different cable connection requirements, effectively limiting the cable and preventing it from getting tangled inside the box, thus protecting the cable.
[0019] 2) The T-junction box of the present invention is provided with an installation plate, a connecting plate and a first limiting block. The first limiting block is rotatably connected to the lower part of the box body through a reset spring. Rotating the first limiting block connects the installation plate and the box body through a slot, and connects the connecting plate and the first limiting block through a slot. The part of the cable passing through the T-junction box can be quickly disassembled, which facilitates the installation of the cable.
[0020] 3) The T-junction box of the present invention is provided with a connecting groove, a fourth locking block and a third limiting block. The connecting groove is evenly distributed on the fixing frame. The connecting groove and the fourth locking block are connected by a locking groove. The connecting cylinder slides on the outside of the second limiting block. The connecting cylinder and the connecting groove are engaged and connected, which can fix the connecting block and the third limiting block. It can effectively adjust the position of the positioning cable according to different cable connection requirements.
[0021] 4) The T-junction box of the present invention is provided with a first locking block and a second locking block. The first locking block and the second locking block are arranged in an array at the bottom of the box. The first locking block and the second locking block with an L-shaped cross section are symmetrically distributed with each other, which can effectively limit the cable and prevent the cable from getting tangled in the box, thus protecting the cable. Attached Figure Description
[0022] Figure 1 This is a schematic diagram of the T-junction box body structure of the present invention;
[0023] Figure 2 This is a schematic diagram of the mounting plate structure of the present invention;
[0024] Figure 3 This is a schematic diagram of the fixing frame structure of the present invention;
[0025] Figure 4 for Figure 1 Enlarged view of point A in the middle.
[0026] The markings in the diagram are as follows: 1. T-junction box body; 2. Box door; 3. Mounting plate; 4. Connecting plate; 41. Slot; 5. Return spring; 6. First limiting block; 7. Fixing frame; 8. Connecting groove; 9. Fourth locking block; 10. Second limiting block; 11. Connecting cylinder; 12. Connecting block; 13. Third limiting block; 14. Back plate; 15. Wiring board; 16. First locking block; 17. Second locking block; 18. Through hole; 19. Limiting component; 20. Limiting rod; 21. Square groove; 22. Cylindrical groove. Detailed Implementation
[0027] To better understand the purpose, structure, and function of this invention, the invention will be described in further detail below with reference to the accompanying drawings.
[0028] like Figure 1As shown, a T-junction box for avoiding cable tangling in this embodiment includes a T-junction box body 1. At least one wiring board 15 is provided on the back plate 14 of the T-junction box body 1. Both the upper and lower end faces of the T-junction box body 1 are provided with through holes 18, and the through holes 18 communicate with the inner cavity of the T-junction box body 1.
[0029] like Figure 1 and Figure 2 As shown, the through hole 18 has a slot on the side facing the door 2 for cables to enter and exit the through hole 18. A mounting plate 3 is provided on the slot. The mounting plate 3 has an L-shaped cross-section, and the side of the mounting plate 3 near the through hole 18 forms part of the through hole wall. Connecting plates 4 are provided on both sides of the mounting plate 3. The connecting plates 4 are detachably connected to the T-connector box body 1. A slot 41 is provided on the upper surface of the connecting plate 4. A limiting member 19 that cooperates with the connecting plate 4 is provided on the upper surface of the base plate. The limiting member 19 includes a limiting rod 20 rotatably connected to the base plate. A return spring 5 is sleeved on the outer periphery of the limiting rod 20. A first limiting block 6 is provided at the top of the limiting rod 20. The first limiting block 6 can pass through the slot 41, and the connecting plate 4 is fixed to the base plate by rotating the position of the first limiting block 6. The slot 41 can be a non-circular slot such as a strip slot, an oblong slot, or a triangular slot. The shape of the first limiting block 6 matches the shape of the slot 41.
[0030] Specifically, such as Figure 1 and Figure 2 As shown, rotate the door 2 on the T-junction box body 1 to adjust its position. Pass the cable through the through hole 18 at the top of the T-junction box body 1 and connect the cable to the junction box 15. Then, pass the cable through the through hole 18 at the bottom of the T-junction box body 1. Next, rotate the limiting member 19 at the bottom of the T-junction box body 1 to compress the return spring 5 wound around the outside of the first limiting block 6, making the first limiting block 6 and the slot 41 on the connecting plate 4 parallel to each other. When the mounting plate 3 is connected to the limiting member 19 at the bottom of the T-junction box body 1, pass the first limiting block 6 through the slot 41, release the first limiting block 6, and the elastic force of the return spring 5 pushes the first limiting block 6 back to its original position, making the first limiting block 6 and the connecting plate 4 perpendicular to each other, thus limiting the connection plate 4 and fixing the mounting plate 3 inside the T-junction box body 1. The mounting plate 3 at the top of the T-junction box body 1 is installed in the same way.
[0031] like Figure 1 and Figure 4As shown, the bottom plate of the T-junction box body 1 is provided with multiple sets of limiting mechanisms. The limiting mechanisms are arrayed on the bottom plate surface and can effectively limit the cable. The limiting mechanism includes a first locking block 16 and a second locking block 17 arranged symmetrically to each other. There is a gap between the first locking block 16 and the second locking block 17. The longitudinal section of the first locking block 16 and the second locking block 17 is L-shaped. The first locking block 16, the second locking block 17 and the bottom plate surface together form a cable receiving space.
[0032] like Figure 1 and Figure 3 As shown, the inner wall of the side plate of the T-shaped junction box body 1 is provided with a fixing frame 7. Multiple connecting slots 8 are provided on the fixing frame 7, and the cross-section of each connecting slot 8 is a polygonal structure. The polygonal structure includes a horizontally opened square slot 21. One end of the square slot 21 extends outward from the fixing frame 7, and the other end of the square slot 21 connects to a cylindrical slot 22. A connecting cylinder 11 is engaged with the cylindrical slot 22 located below the square slot 21. One end of the connecting cylinder 11 is provided with a third locking block 13, and the other end is provided with a fourth locking block 9. The fourth locking block 9 is connected to the connecting cylinder 11 via a second limiting block 10. A connecting block 12 is provided between the third locking block 13 and the connecting cylinder 11. The cross-section of the third limiting block 13 is L-shaped. Specifically, the fourth locking block 9 is inserted into the connecting slot 8. The fourth locking block 9, with an L-shaped longitudinal section, is slotted into the connecting slot 8. The fourth locking block 9 slides in the connecting slot 8, and the connecting block 12 slides on the fourth locking block 9. The connecting cylinder 11 fixed on the connecting block 12 slides outside the second limiting block 10 connected to it, so that the connecting cylinder 11 and the connecting slot 8 are engaged and connected, thus fixing the connecting block 12. The inner side of the connecting block 12 is centrally symmetrically fixed with a third limiting block 13. The cable is passed through the third limiting block 13. The two third limiting blocks 13, with an L-shaped cross section, can limit the cable. The connecting slots 8 are equally spaced in the fixing frame 7. The number and height of the fourth locking blocks 9 can be adjusted according to the needs of the cable, which is highly flexible.
[0033] It is understood that the present invention has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of the invention. Furthermore, under the teachings of the present invention, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of the invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of the present invention.
Claims
1. A T-junction box for preventing cable tangling, comprising a T-junction box body (1), wherein at least one terminal block (15) is provided on the back plate (14) of the T-junction box body (1), and through holes (18) are provided on both the upper and lower end faces of the T-junction box body (1), wherein the through holes (18) communicate with the inner cavity of the T-junction box body (1); characterized in that: The through hole (18) has a slot on the side facing the box door (2) for the cable to enter and exit the through hole (18). The slot is provided with a mounting plate (3). The mounting plate (3) is provided with connecting plates (4) on both sides. The connecting plates (4) are detachably connected to the T-junction box body (1). The bottom plate of the T-junction box body (1) is provided with multiple sets of limiting mechanisms. The limiting mechanism includes a first locking block (16) and a second locking block (17) arranged opposite to each other. There is a gap between the first locking block (16) and the second locking block (17). The first locking block (16), the second locking block (17) and the bottom plate together form a cable accommodating space. The inner wall of the side plate of the T-connector body (1) is provided with a fixing frame (7), and multiple connecting slots (8) are provided on the fixing frame (7). A connecting cylinder (11) is engaged and connected inside the connecting slot (8). A third locking block (13) is provided at one end of the connecting cylinder (11), and a fourth locking block (9) is provided at the other end of the connecting cylinder (11). The connecting groove (8) includes a horizontally opened square groove (21). One end of the square groove (21) extends to the outer end of the fixing frame (7), and the other end of the square groove (21) is connected to a cylindrical groove (22). The cylindrical groove (22) is located on the lower side of the square groove (21), and a connecting cylinder (11) is engaged with the cylindrical groove (22). The fourth card block (9) is connected to the connecting cylinder (11) through the slot of the second limiting block (10), and a connecting block (12) is provided between the third card block (13) and the connecting cylinder (11). The cross-section of the third card block (13) is L-shaped.
2. The T-junction box for preventing cable tangling according to claim 1, characterized in that, The mounting plate (3) has an L-shaped cross-section, and the side of the mounting plate (3) near the through hole (18) forms part of the through hole wall.
3. The T-junction box for preventing cable tangling according to claim 1, characterized in that, The connecting plate (4) has a slot (41) on its upper surface. The upper surface of the base plate is provided with a limiting member (19) that cooperates with the connecting plate (4). The limiting member (19) includes a limiting rod (20) that is rotatably connected to the base plate. A return spring (5) is sleeved on the outer periphery of the limiting rod (20). A first limiting block (6) is provided at the top of the limiting rod (20). The first limiting block (6) passes through the slot (41) and fixes the connecting plate (4) on the base plate.
4. The T-junction box for preventing cable tangling according to claim 3, characterized in that, The slot (41) is a non-circular slot, and the shape of the first limiting block (6) matches the shape of the slot (41).
5. The T-junction box for preventing cable tangling according to claim 1, characterized in that, The limiting mechanisms are arranged in an array on the upper surface of the base plate.
Citation Information
Patent Citations
T-junction box
CN209748170U
Threading plate and T connection box
CN219371996U