High-efficiency branching optimization mechanism of low-voltage cable branching box

Abstract

The invention discloses an efficient branching optimization mechanism of a low-voltage cable branching box, and belongs to the technical field of power distribution equipment, the efficient branching optimization mechanism comprises a branching box and a back plate assembled in the branching box, a lifting unit is assembled on the back plate, and the lifting unit is connected with a branching unit through a moving plate; through the arrangement of the branching unit and the distribution driving unit, after the cables enter the branching box, the ends of the cables to be branched penetrate into the threading seats at different positions, all the cables are driven by the lifting unit to move upwards together till the ends are located at the installation positions, then butt joint and fixation are carried out, butt joint does not need to be carried out one by one, and the work efficiency is improved. According to the cable branching device, the branching efficiency is greatly improved, meanwhile, the multiple positioning clamps can be kept at different heights through the distributed driving units in the moving process, and the cables are clamped and fixed from different positions by controlling the positioning clamps to move inwards together after installation, so that the stability and safety of the cables in the using process are guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of power distribution equipment, and in particular to a high-efficiency branching optimization mechanism for a low-voltage cable branching box. Background Art

[0002] A cable junction box is a device used to branch, connect and convert cable lines. It is mostly used outdoors. Cable junction boxes are divided into two categories according to their electrical structure: one category does not contain any switching equipment, and the box only has accessories for processing and connecting the cable ends. It has a relatively simple structure, a small size, and a single function. It can be called an ordinary junction box; the other category is that the box not only has the accessories of an ordinary junction box, but also contains one or more switching devices. It has a relatively complex structure, a large size, many connecting devices, and is difficult to manufacture with high cost. It can be called an advanced junction box.

[0003] Traditional low-voltage cable distribution boxes lack a branching mechanism, which causes the cable layout in the box to be disorganized and brings great inconvenience to maintenance operations. In addition, when the cables are connected to the box, workers are required to install them one by one, which is an inefficient process. What is more serious is that after the branching, the cables are usually only fixed at the connection points, while the rest of the cables are in an unconstrained free state, which is not conducive to the overall stability and safety of the cables. Summary of the invention

[0004] The purpose of the present invention is to solve the problem that when the cables are connected to the box, the workers need to install them one by one, which is an inefficient process. What is more serious is that the cables are usually only fixed at the connection points after branching, while the rest are in an unconstrained free state, which is not conducive to the overall stability and safety of the cables. An efficient branching optimization mechanism for a low-voltage cable branching box is proposed.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] The invention discloses a high-efficiency branching optimization mechanism for a low-voltage cable branching box, comprising a branching box and a back plate installed in the branching box, characterized in that a lifting unit is installed on the back plate, and the lifting unit is connected to a branching unit through a moving plate;

[0007] The wire splitting unit comprises a telescopic member fixed on the movable plate, a threading seat is inserted at the end of the telescopic member, a positioning clamp is slidably mounted at the bottom end of the threading seat, and a partial driving unit for driving the positioning clamp to move is assembled on the front of the back plate;

[0008] The division drive unit comprises a plurality of division rods rotatably connected to the back plate through a first bearing seat, three gears are fixedly sleeved on the plurality of division rods, a rack matched with the gears is fixedly mounted on the back of the positioning clamp, a first single-groove pulley and a double-groove pulley are fixedly sleeved on one of the division rods and the other five division rods, and the first single-groove pulley and the double-groove pulley are connected together through a plurality of first synchronous belts;

[0009] The threading seat follows the moving plate and moves the separated high-voltage cables upward simultaneously or separately to dock with the wiring terminals, and during the movement, drives the division rod to drive the gears at different positions to rotate, driving the rack to drive the positioning clamp to fix the cables at different heights multiple times.

[0010] As a further description of the above technical solution:

[0011] The branch rod comprises a bottom rod, a middle rod is sleeved on the bottom rod, a separation rod is sleeved on the middle rod, a top rod is sleeved on the separation rod, and the gears are respectively assembled on the bottom rod, the middle rod and the top rod.

[0012] As a further description of the above technical solution:

[0013] A lower linkage rod is fixedly sleeved on the outer surfaces of the plurality of middle rods, and an upper linkage rod is fixedly sleeved on the outer surfaces of the plurality of separation rods. A lower electric push rod is mounted on the back plate, and one end of the lower electric push rod is connected to the lower linkage rod. An upper electric push rod is fixed on the lower linkage rod via a mounting plate, and one end of the upper electric push rod is connected to the upper linkage rod.

[0014] As a further description of the above technical solution:

[0015] The top ends of the bottom rod and the middle rod are provided with short key grooves, the top ends of the inner walls of the middle rod and the separation rod are fixed with short key blocks matching the short key grooves, the top end of the separation rod is provided with a long key groove, and the inner wall of the top rod is fixed with a long key block matching the long key grooves.

[0016] As a further description of the above technical solution:

[0017] The back plate is provided with a plurality of through holes matched with the rack, a side wall of the through hole is provided with a mounting groove, a clamping column is connected in the mounting groove via a first spring, and the outer wall of the rack is provided with a plurality of limiting grooves matched with the clamping column.

[0018] As a further description of the above technical solution:

[0019] A connecting tube is inserted into the positioning clamp through a slot, a clip is fixed to one end of the connecting tube that penetrates into the positioning clamp, a connecting rod is connected to the connecting tube through a second spring, and a top plate is fixed to one end of the connecting rod;

[0020] A third spring is fixed on one side of the abutting plate, one end of the third spring is fixed to the back of the positioning clamp, and a push block is fixed on the front side of the back plate near the two through holes, so that when the positioning clamp moves inward, the abutting plate can be pushed inward by the push block, thereby enabling the connecting rod together with the connecting tube to push the clip and the cable against each other.

[0021] As a further description of the above technical solution:

[0022] The telescopic member comprises a positioning tube fixed to the back plate, both ends of the positioning tube are plugged with plug rods, and both sides of the threading seat are provided with connecting grooves adapted to the plug rods.

[0023] As a further description of the above technical solution:

[0024] Recovery grooves are provided on the tops of both sides of the threading seat, and an inclined clamping strip is connected to the recovery groove through a fourth spring. A connecting seat adapted to the threading seat is fixed to the top of the front of the back plate, and limiting clamping grooves adapted to the inclined clamping strip are provided on both sides of the connecting seat, and an upward inclined arc piece is fixed in the threading seat for driving the cable to move upward with it.

[0025] As a further description of the above technical solution:

[0026] A second single-groove pulley is rotatably connected to one side of the top of the back plate through a second bearing seat. The second single-groove pulley is connected to one of the double-groove pulleys through a second synchronous belt. A micro motor is connected to the bottom end of the second single-groove pulley, and the micro motor is fixed to the back plate.

[0027] As a further description of the above technical solution:

[0028] The back of the lifting unit is rotatably connected to the screw rod on the back plate through the third bearing seat, a guide rod is fixed to the other side of the back plate, a thread groove matching the screw rod is opened at one end of the movable plate, one end of the movable plate is threadedly sleeved on the screw rod through the thread groove, a through groove is opened at the other end of the movable plate, and the other end of the movable plate is sleeved on the guide rod through the through groove;

[0029] A servo motor is fixed at the bottom of the back plate, and the output end of the servo motor is spline-connected to the bottom end of the lead screw.

[0030] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0031] By setting up the branching unit and the distribution drive unit, it is achieved that after the cables enter the branching box, the ends of the cables to be branched are respectively inserted into the threading seats at different positions, and driven by the lifting unit, all the cables are moved upward together until the ends are in the installation position, and then docked and fixed without the need to dock one by one, which greatly improves the efficiency of the branching. At the same time, during the movement, the distributed drive unit can keep multiple positioning clamps at different heights, and after installation, the positioning clamps can be controlled to move inwards together, so that the cables are clamped and fixed from different positions, so that the stability and safety of the cables during use are guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It shows a schematic diagram of a structure provided in an embodiment of the present invention;

[0033] Figure 2 It shows a schematic diagram of a structure in a non-use state provided by an embodiment of the present invention;

[0034] Figure 3 It shows a structural schematic diagram of a use state provided by an embodiment of the present invention;

[0035] Figure 4 A schematic diagram of the structural disassembly of a segmented rod provided according to an embodiment of the present invention is shown;

[0036] Figure 5 The embodiment of the present invention provides Figure 2 The enlarged view of point A in the middle;

[0037] Figure 6 The embodiment of the present invention provides Figure 3 The enlarged view of point B in the middle;

[0038] Figure 7 It shows a schematic diagram of the structure of the interior of a threading seat after a part of the threading seat is cut open according to an embodiment of the present invention;

[0039] Figure 8 It shows a schematic diagram of the structure of a positioning clamp provided by an embodiment of the present invention after being partially cut away;

[0040] Fig. 9 A schematic diagram showing the installation position of a backplane provided according to an embodiment of the present invention is shown;

[0041] Fig.10 The embodiment of the present invention provides Figure 4 Enlarged view of point C in the middle;

[0042] Fig.11 The embodiment of the present invention provides Figure 4 Enlarged view of point D in the middle.

[0043] Legend:

[0044] 10. Junction box;

[0045] 20. Back panel;

[0046] 30. Lifting unit; 31. Screw rod; 32. Guide rod; 33. Servo motor; 34. Moving plate;

[0047] 40. Line distribution unit; 41. Telescopic member; 4101. Positioning tube; 4102. Insertion rod; 42. Threading seat; 43. Positioning clamp; 44. Perforation; 45. Clamping column; 46. Limiting groove; 47. Connecting tube; 48. Clip; 49. Top plate; 410. Third spring; 411. Push block; 412. Inclined clamping strip; 413. Connecting seat; 414. Upper inclined arc piece;

[0048] 50. Division drive unit; 51. Division rod; 511. Bottom rod; 512. Middle rod; 513. Separation rod; 514. Top rod; 52. Gear; 53. Rack; 54. First synchronous belt; 55. Lower linkage rod; 56. Upper linkage rod; 57. Lower electric push rod; 58. Upper electric push rod; 59. Micro motor. DETAILED DESCRIPTION

[0049] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0050] like Figure 1 - Fig.11 As shown, the present invention provides:

[0051] The invention discloses an efficient branching optimization mechanism for a low-voltage cable branching box, comprising a branching box 10 and a back plate 20 installed in the branching box 10 . The back plate 20 is equipped with a lifting unit 30 , and the lifting unit 30 is connected to a branching unit 40 via a moving plate 34 .

[0052] like Figure 1 , Figure 2 , Figure 3 and Fig. 9As shown, the line splitting unit 40 includes a telescopic member 41 fixed on the movable plate 34, and a threading seat 42 is inserted at the end of the telescopic member 41, and an upper inclined arc piece 414 is fixed in the threading seat 42 for driving the cable to move upward with it, and a positioning clamp 43 is slidably installed at the bottom end of the threading seat 42. Specifically, there are multiple positioning clamps 43, and the positioning clamp 43 located at the top is slidably connected to the threading seat 42, and the remaining positioning clamps 43 are sequentially connected to the sliding connection located above. At the same time, there are multiple upper inclined arc pieces 414, which form a circle, and the shape formed by the whole is conical, so that it has a unidirectional function. When the cable is inserted into the threading seat 42, under the action of the upper inclined arc piece 414, when the threading seat 42 moves upward, it will move upward with the cable through the upper inclined arc piece 414;

[0053] Preferably, a fixing bolt is threaded through the front surface of the threading seat 42, and the cable can be fixed by the fixing bolt after being inserted, so that the cable can move together when the threading seat 42 moves. At the same time, it can also be fixed in advance. When the threading seat 42 cooperates with the upper inclined arc piece 414 to drive the cable to move to the installation position and install it, the fixing bolt is tightened to fix the cable for the second time;

[0054] The back plate 20 is provided with a plurality of through holes 44 adapted to the rack 53, a side wall of the through hole 44 is provided with a mounting groove, a clamping column 45 is connected in the mounting groove via a first spring, and a plurality of limiting grooves 46 adapted to the clamping column 45 are provided on the outer wall of the rack 53;

[0055] Specifically, in the process of the threading seat 42 moving with the cable end, when the bottom positioning clip 43 moves to correspond to the bottom through hole 44, the micro motor 59 is started to control the division rod 51 to rotate, so that the division rod 51 drives the bottom gear 52 to rotate, so that the rack 53 of the bottom positioning clip 43 enters the bottom through hole 44. It is worth noting that when the rack 53 moves inward until the clamping column 45 is clamped in the first limiting groove 46, the bottom positioning clip 43 is separated from the positioning clip 43 above it, and at this time, the positioning clip 43 will not play a fixing role on the cable.

[0056] After the middle positioning clip 43 moves to the through hole 44 corresponding to the middle position, the lower electric push rod 57 needs to be started first to move the middle rod 512 together with the separation rod 513 and the top rod 514 upward until the middle rod 512 is separated from the bottom rod 511. At this time, after the micro motor 59 is started, the bottom rod 511 will not rotate with the separation rod 513. At this time, the gear 52 on the middle rod 512 drives the rack 53 on the middle positioning clip 43 to move into the through hole 44 until the clamping column 45 is clamped in the first limiting groove 46. At this time, the lower electric push rod 57 can be used to drive the middle rod 512 together with the separation rod 513 and the top rod 514 to move downward again and reset.

[0057] Then, when the uppermost positioning clamp 43 moves to be fed into the uppermost perforation 44 and is separated from the threading seat 42, the upper electric push rod 58 is started to push the separation rod 513 to separate from the middle rod 512. At this time, after the micro motor 59 is started again, the middle rod 512 and the bottom rod 511 will not rotate together. At this time, the gear 52 on the top rod 514 drives the rack 53 on the uppermost positioning clamp 43 to move into the perforation 44 until the clamping column 45 is clamped in the first limiting groove 46. At this time, the upper electric push rod 58 is started again to move the separation rod 513 downward and reset, so that the separation rod 513 is connected to the middle rod 512 again.

[0058] In addition, it should be noted that the middle gear 52 is twice as long as the other two gears 52, and when the middle rod 512 does not move upward (i.e., is not separated from the bottom rod 511), when the middle positioning clip 43 moves to correspond to the middle through hole 44, the middle gear 52 meshes with the rack 53 on the middle positioning clip 43, and after the middle rod 512 moves upward and separates from the bottom rod 511, the middle gear 52 moves upward with the middle rod 512, and when the middle rod 512 moves upward, the gear 52 moves upward with the middle rod 512. After the movement is completed, the gear 52 is still meshed with the rack 53 on the middle positioning clamp 43, and the upper part of the gear 52 is located on the side of the rack 53 on the uppermost positioning clamp 43. The rack 53 on the uppermost positioning clamp 43 is smaller than the rack 53 on the middle positioning clamp 43, that is, the gear 52 is not meshed with the uppermost rack 53, and when the gear 52 rotates, it only drives the rack 53 on the middle positioning clamp 43 to move;

[0059] like Figure 7 As shown, the tops of both sides of the threading seat 42 are provided with recovery grooves, and the recovery grooves are connected with an inclined clamping strip 412 through a fourth spring. A connecting seat 413 adapted to the threading seat 42 is fixed to the top of the front of the back plate 20, and both sides of the connecting seat 413 are provided with limit clamping grooves adapted to the inclined clamping strip 412;

[0060] Specifically, when the threading seat 42 moves to the top, it will engage with the connecting seat 413, and under the drive of the fourth spring, the inclined clamping strip 412 will be clamped into the limiting clamping groove, so that the threading seat 42 is fixed in the connecting seat 413 to prevent it from sliding downward when not in use.

[0061] like Figure 2 and Figure 7 As shown, the telescopic member 41 includes a positioning tube 4101 fixed to the back plate 20, and both ends of the positioning tube 4101 are plugged with plug rods 4102, and both sides of the threading seat 42 are provided with connection grooves adapted to the plug rods 4102;

[0062] Specifically, when the number of branched cables is less than the number of threading seats 42, for example, the number is two, the insertion rod 4102 in the threading seats 42 on both sides can be slid to one side to separate from one of the threading seats 42, or the insertion rod 4102 in the threading seat 42 at the middle position can be slid to one side to separate from the threading seat 42 at the middle position. For example, the threading seats 42 are numbered a, b, and c from left to right. By sliding out the insertion rods 4102 at different positions, different combinations of a, b, c, ab, ac, bc, and abc can be selected to follow the movable plate 34 to move upward to meet the needs of different numbers of branched cables, drive these cables to move upward for installation. Similarly, when it is necessary to inspect and repair cables at different positions after the cables are branched, the above method can be used to control the threading seats 42 at different positions to connect with the movable plate 34, so that the cables inside them move downward with the movable plate 34.

[0063] like Figure 1 Figure 2 , Figure 3 and Figure 6 As shown, the front of the back plate 20 is equipped with a division drive unit 50 for driving the positioning clamp 43 to move. The division drive unit 50 includes a plurality of division rods 51 rotatably connected to the back plate 20 through a first bearing seat, and three gears 52 are fixedly sleeved on the plurality of division rods 51. A rack 53 adapted to the gears 52 is fixedly sleeved on the back of the positioning clamp 43. A first single-groove pulley and a double-groove pulley are fixedly sleeved on one of the division rods 51 and the other five division rods 51, respectively. The first single-groove pulley and the double-groove pulley are connected together by a plurality of first synchronous belts 54.

[0064] The threading seat 42 follows the moving plate 34 and moves upward with the separated high-voltage cables simultaneously or separately to dock with the wiring terminals, and during the movement, it drives the division rod 51 to drive the gears 52 at different positions to rotate, driving the rack 53 to drive the positioning clamp 43 to fix the cables at different heights multiple times;

[0065] A second single-groove pulley is rotatably connected to one side of the top of the back plate 20 through a second bearing seat, the second single-groove pulley is connected to one of the double-groove pulleys through a second synchronous belt, a micro motor 59 is connected to the bottom end of the second single-groove pulley, and the micro motor 59 is fixed to the back plate 20;

[0066] Specifically, when the micro motor 59 is started, under the action of these pulleys and the synchronous belt, the plurality of branch rods 51 can be driven to move together.

[0067] like Figure 4 , Fig.10 and Fig.11As shown, the division rod 51 includes a bottom rod 511, a middle rod 512 is sleeved on the bottom rod 511, a separation rod 513 is sleeved on the middle rod 512, a top rod 514 is sleeved on the separation rod 513, and the gears 52 are respectively assembled on the bottom rod 511, the middle rod 512 and the top rod 514;

[0068] The outer surfaces of the plurality of middle rods 512 are commonly fixedly sleeved with a lower linkage rod 55, the outer surfaces of the plurality of separation rods 513 are commonly fixedly sleeved with an upper linkage rod 56, a lower electric push rod 57 is mounted on the back plate 20, one end of the lower electric push rod 57 is connected to the lower linkage rod 55, an upper electric push rod 58 is fixed to the lower linkage rod 55 through a mounting plate, one end of the upper electric push rod 58 is connected to the upper linkage rod 56;

[0069] The top of the bottom rod 511 and the middle rod 512 are provided with short key grooves, the top of the inner wall of the middle rod 512 and the separation rod 513 are fixed with short key blocks adapted to the short key grooves, the top of the separation rod 513 is provided with a long key groove, and the inner wall of the top rod 514 is fixed with a long key block adapted to the long key groove;

[0070] Specifically, when the middle rod 512 moves to the point where the short key block therein separates from the short key slot in the bottom rod 511, when the middle rod 512 rotates, the bottom rod 511 will not rotate together. Similarly, when the separation rod 513 moves to the point where the short key block therein separates from the short key slot in the middle rod 512, when the separation rod 513 rotates, the middle rod 512 will not rotate together. It is worth noting that during the upward and downward movement of the separation rod 513, the long key block in the top rod 514 is always in the long key slot in the separation rod 513, so that the top rod 514 can always rotate together with the separation rod 513.

[0071] like Figure 2 , Figure 3 and Figure 8 As shown, a connecting tube 47 is inserted into the positioning clip 43 through a slot, and a clip 48 is fixed to one end of the connecting tube 47 inserted into the positioning clip 43. A connecting rod is connected to the connecting tube 47 through a second spring, and a top plate 49 is fixed to one end of the connecting rod. A third spring 410 is fixed to one side of the top plate 49, and one end of the third spring 410 is fixed to the back of the positioning clip 43. A push block 411 is fixed between the two through holes 44 on the front side of the back plate 20, so that when the positioning clip 43 moves inward, the top plate 49 can be pushed inward by the push block 411, so that the connecting rod together with the connecting tube 47 can push the clip 48 to hit the cable.

[0072] When the cable is installed, the separation rod 513 and the middle rod 512 are in the initial state. At this time, the micro motor 59 is started, and the division rods 51 at all positions will rotate together, thereby causing the gears 52 at different positions to rotate together, so that the racks 53 at different positions continue to move inward with the positioning clamp 43. During the movement, the push block 411 will push the abutment plate 49 to move toward the positioning clamp 43. During the movement, the connecting rod is displaced together with the connecting tube 47, thereby pushing the clip 48 to abut against the outer wall of the cable in the positioning clamp 43, and the second spring and the third spring 410 play a role in preventing the clip 48 from abutting against excessive abutment.

[0073] like Figure 2 , Figure 3 and Fig. 9 As shown, the back of the lifting unit 30 is rotatably connected to the screw rod 31 on the back plate 20 through the third bearing seat, and a guide rod 32 is fixed to the other side of the back plate 20. A thread groove matching the screw rod 31 is opened at one end of the moving plate 34, and one end of the moving plate 34 is threadedly sleeved on the screw rod 31 through the thread groove. A through groove is opened at the other end of the moving plate 34, and the other end of the moving plate 34 is sleeved on the guide rod 32 through the through groove. A servo motor 33 is fixed to the bottom of the back plate 20, and the output end of the servo motor 33 is spline-connected to the bottom end of the screw rod 31.

[0074] Specifically, after the servo motor 33 is started, the screw rod 31 rotates, thereby driving the movable plate 34 to move upward with the threading seat 42 fixed on its surface by the insertion rod 4102 together with the positioning clamp 43, and the positioning clamp 43 is installed after it moves to the position.

[0075] Specifically, when the high-efficiency branching optimization mechanism of the low-voltage cable distribution box is working / in use:

[0076] 1. Preparation stage: Insert the cables to be tapped into the corresponding threading seats 42 respectively. According to the number of cables, the threading seats 42 can be used selectively. The sliding rod 4102 and the positioning tube 4101 are connected or separated to adapt to different numbers of cables, ensuring that the upper inclined arc piece 414 in the threading seat 42 can correctly guide the cables to move with the movement of the threading seat 42;

[0077] 2. Cable lifting: Start the servo motor 33 to drive the screw rod 31 to rotate. Since one end of the moving plate 34 is threadedly connected to the screw rod 31 and the other end is sleeved on the guide rod 32 through a through groove, the moving plate 34 will move up and down along the axis of the screw rod 31. As the moving plate 34 rises, the threading seat 42 and the cable thereon will also be lifted. At the same time, the upper inclined arc piece 414 will ensure that the cable can move smoothly with the threading seat 42.

[0078] 3. Preliminary fixation of the positioning clip 43: During the cable lifting process, when the bottom positioning clip 43 moves to a position corresponding to the through-holes 44 on the upper and lower sides of the back plate 20, the micro motor 59 is started, and the micro motor 59 drives the division rod 51 to rotate through the synchronous belt and the pulley, thereby driving the gear 52 to rotate, and the gear 52 meshes with the rack 53 on the back of the positioning clip 43, thereby driving the rack 53 (and the positioning clip 43) to move into the through-hole 44;

[0079] When the rack 53 moves into the through hole 44 and the clamping column 45 is clamped into the first limiting groove 46, the bottom positioning clip 43 completes the initial fixation;

[0080] For the middle and upper positioning clamps 43, it is necessary to control the up and down movement of the middle rod 512 and the separation rod 513 respectively through the lower electric push rod 57 and the upper electric push rod 58 to realize the engagement and drive of the gear 52 with the corresponding rack 53. Specifically, when the gear 52 on the middle rod 512 (or the separation rod 513) needs to engage with the corresponding rack 53, it is first lifted to a position separated from the lower rod by the electric push rod, and then the micro motor 59 is started to drive it. After the driving is completed, it is reset to the initial position by the electric push rod.

[0081] 4. Final fixation of the cable: When all the positioning clips 43 are moved into the corresponding through holes 44 and are initially fixed, the micro motor 59 is started again to rotate all the branch rods 51 together. At this time, the gears 52 at different positions will drive the corresponding racks 53 (and the positioning clips 43) to continue to move inward. During the movement, the push block 411 will push the abutting plate 49 (and the connecting rod and the connecting tube 47), thereby causing the clip 48 to abut against the outer wall of the cable, thereby achieving the final fixation of the cable;

[0082] 5. Fixing of the threading seat 42 and installation of the cable: When the threading seat 42 moves to the connecting seat 413 at the top of the back plate 20, the inclined clamping strip 412 will be clamped into the limiting clamping slot under the action of the fourth spring to fix the threading seat 42. At this time, the cable and the terminal can be connected and installed.

[0083] 6. Maintenance and overhaul: When maintenance and overhaul are required, the threading seat 42 and the movable plate 34 can be selectively connected or separated by sliding the plug rod 4102, and then the servo motor 33 is started to lower the movable plate 34, thereby driving the threading seat 42 and the cable thereon to descend to a position convenient for operation.

[0084] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A high-efficiency branching optimization mechanism for a low-voltage cable branching box, comprising a branching box (10) and a back plate (20) mounted in the branching box (10), characterized in that: The back plate (20) is equipped with a lifting unit (30), and the lifting unit (30) is connected to a branching unit (40) via a movable plate (34); The wire splitting unit (40) comprises a telescopic member (41) fixed on the movable plate (34); a threading seat (42) is inserted into the end of the telescopic member (41); a positioning clamp (43) is slidably mounted on the bottom end of the threading seat (42); and a partial driving unit (50) for driving the positioning clamp (43) to move is mounted on the front side of the back plate (20); The segmented driving unit (50) comprises a plurality of segmented rods (51) rotatably connected to the back plate (20) via a first bearing seat, three gears (52) being fixedly sleeved on the plurality of segmented rods (51), a rack (53) matching the gears (52) being fixedly sleeved on the back of the positioning clamp (43), a first single-groove pulley and a double-groove pulley being fixedly sleeved on one of the segmented rods (51) and the other five segmented rods (51), respectively, the first single-groove pulley and the double-groove pulley being connected together via a plurality of first synchronous belts (54); The threading seat (42) follows the moving plate (34) and moves upward with the separated high-voltage cables simultaneously or separately to dock with the wiring terminals. During the movement, the driving rod (51) drives the gears (52) at different positions to rotate, driving the rack (53) to drive the positioning clamp (43) to fix the cables at different heights multiple times.

2. The high-efficiency branching optimization mechanism of the low-voltage cable junction box according to claim 1 is characterized in that: The branch rod (51) comprises a bottom rod (511), a middle rod (512) is sleeved on the bottom rod (511), a separation rod (513) is sleeved on the middle rod (512), a top rod (514) is sleeved on the separation rod (513), and the gears (52) are respectively mounted on the bottom rod (511), the middle rod (512) and the top rod (514).

3. The high-efficiency branching optimization mechanism of the low-voltage cable junction box according to claim 2 is characterized in that: The outer surfaces of the plurality of middle rods (512) are commonly fixedly sleeved with a lower linkage rod (55), the outer surfaces of the plurality of separation rods (513) are commonly fixedly sleeved with an upper linkage rod (56), a lower electric push rod (57) is mounted on the back plate (20), one end of the lower electric push rod (57) is connected to the lower linkage rod (55), an upper electric push rod (58) is fixed to the lower linkage rod (55) via a mounting plate, one end of the upper electric push rod (58) is connected to the upper linkage rod (56).

4. The high-efficiency branching optimization mechanism of the low-voltage cable junction box according to claim 3 is characterized in that: The top ends of the bottom rod (511) and the middle rod (512) are provided with short key slots, the top ends of the inner walls of the middle rod (512) and the separation rod (513) are both fixed with short key blocks that match the short key slots, the top end of the separation rod (513) is provided with a long key slot, and the inner wall of the top rod (514) is fixed with a long key block that matches the long key slots.

5. The high-efficiency branching optimization mechanism of the low-voltage cable junction box according to claim 1 is characterized in that: The back plate (20) is provided with a plurality of through holes (44) adapted to match the rack (53); a side wall of the through hole (44) is provided with a mounting groove; a clamping column (45) is connected to the mounting groove via a first spring; and an outer wall of the rack (53) is provided with a plurality of limiting grooves (46) adapted to match the clamping column (45).

6. The high-efficiency branching optimization mechanism of the low-voltage cable junction box according to claim 1 is characterized in that: A connecting tube (47) is inserted into the positioning clamp (43) via a slot, and a clamping piece (48) is fixed to one end of the connecting tube (47) that penetrates into the positioning clamp (43). A connecting rod is connected to the connecting tube (47) via a second spring, and a top plate (49) is fixed to one end of the connecting rod. A third spring (410) is fixed to one side of the abutting plate (49), one end of the third spring (410) is fixed to the back of the positioning clamp (43), and a push block (411) is fixed between the two through holes (44) on the front of the back plate (20), so that when the positioning clamp (43) moves inward, the push block (411) can push the abutting plate (49) inward, thereby enabling the connecting rod together with the connecting tube (47) to push the clip (48) to abut against the cable.

7. The high-efficiency branching optimization mechanism of the low-voltage cable junction box according to claim 6 is characterized in that: The telescopic member (41) comprises a positioning tube (4101) fixed to the back plate (20), both ends of the positioning tube (4101) are plugged with insertion rods (4102), and both sides of the threading seat (42) are provided with connection grooves adapted to the insertion rods (4102).

8. The high-efficiency branching optimization mechanism of the low-voltage cable junction box according to claim 7 is characterized in that: The tops of both sides of the threading seat (42) are provided with recovery grooves, and an inclined clamping strip (412) is connected to the recovery groove via a fourth spring. A connecting seat (413) adapted to the threading seat (42) is fixed to the top of the front side of the back plate (20), and limiting clamping grooves adapted to the inclined clamping strip (412) are provided on both sides of the connecting seat (413). An upward inclined arc piece (414) for driving the cable to move upward with it is fixed in the threading seat (42).

9. The high-efficiency branching optimization mechanism of the low-voltage cable junction box according to claim 8 is characterized in that: A second single-groove pulley is rotatably connected to one side of the top of the back plate (20) via a second bearing seat, the second single-groove pulley is connected to one of the double-groove pulleys via a second synchronous belt, the bottom end of the second single-groove pulley is connected to a micro motor (59), and the micro motor (59) is fixed to the back plate (20).

10. The high-efficiency branching optimization mechanism of the low-voltage cable junction box according to claim 1, characterized in that: The back side of the lifting unit (30) is rotatably connected to a screw rod (31) on the back plate (20) via a third bearing seat, a guide rod (32) is fixed to the other side of the back plate (20), one end of the movable plate (34) is provided with a thread groove matching the screw rod (31), one end of the movable plate (34) is threadedly sleeved on the screw rod (31) via the thread groove, the other end of the movable plate (34) is provided with a through groove, and the other end of the movable plate (34) is sleeved on the guide rod (32) via the through groove; A servo motor (33) is fixed to the bottom of the back plate (20), and an output end of the servo motor (33) is spline-connected to the bottom end of the lead screw (31).

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