Efficient wire-splitting optimization mechanism for low-voltage cable distribution box

Abstract

The present invention discloses an efficient wire splitting and optimizing mechanism for a low-voltage cable tapping box, belonging to the technical field of distribution equipment. It includes a tapping box and a back panel assembled inside the tapping box. A lifting unit is assembled on the back panel, and the lifting unit is connected with a wire splitting unit through a moving plate. Through the arranged wire splitting unit and distributed driving unit, after the cable enters the tapping box, the end parts of the cables to be tapped are respectively inserted into the threading seats at different positions, and driven by the lifting unit, all the cables are driven to move upward together until the ends are in the installation positions, and then docking and fixing are carried out. There is no need to carry out docking one by one, which greatly improves the tapping efficiency. At the same time, during the moving process, the distributed driving unit can keep multiple positioning clips at different heights, and after installation, the positioning clips are controlled to move inward together to clamp and fix the cables from different positions, ensuring the stability and safety of the cables during use.

Description

Technical Field

[0001] The present invention relates to the technical field of distribution equipment, and particularly to an efficient wire-splitting optimization mechanism for a low-voltage cable distribution box. Background Art

[0002] A cable distribution box is a device used to tap, branch, connect, and convert circuits of a cable line. Most of them are used outdoors. The cable distribution box is divided into two categories according to its electrical composition: one is without any switch equipment, and there are only accessories for processing and connecting cable ends in the box. Its structure is relatively simple, the volume is small, and the function is relatively single, which can be called an ordinary distribution box; the other is that there are not only the accessories of the ordinary distribution box in the box, but also one or more switch devices. Its structure is more complex, the volume is larger, there are many connecting devices, the manufacturing technology is difficult, and the cost is high, which can be called an advanced distribution box.

[0003] The traditional low-voltage cable distribution box lacks a wire-splitting mechanism, which results in a chaotic layout of cables in the box, bringing great inconvenience to maintenance operations. In addition, when the cables are connected into the box, it is necessary for the staff to install them one by one, and this process is inefficient. More seriously, after the cables are split, they are usually fixed only at the connection points, and the rest are in an unconstrained free state. Such a situation 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 propose an efficient wire-splitting optimization mechanism for a low-voltage cable distribution box to solve the problems that when the cables are connected into the box, it is necessary for the staff to install them one by one, and this process is inefficient. More seriously, after the cables are split, they are usually fixed only at the connection points, and the rest are in an unconstrained free state. Such a situation is not conducive to the overall stability and safety of the cables.

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

[0006] An efficient wire-splitting optimization mechanism for a low-voltage cable distribution box includes a distribution box and a backboard assembled in the distribution box. The backboard is characterized in that a lifting unit is assembled on the backboard, and the lifting unit is connected with a wire-splitting unit through a moving plate;

[0007] The wire-splitting unit includes a telescopic member fixed on the moving plate. A wire-passing seat is inserted at the end of the telescopic member. A positioning clip is slidably installed at the bottom end of the wire-passing seat. A partial driving unit for driving the positioning clip to move is assembled on the front surface of the backboard;

[0008] The sub-driving unit includes multiple sub-rods rotatably connected to the back plate through a first bearing block. Three gears are fixedly sleeved on each of the multiple sub-rods. A rack adapted to the gears is fixed on the back of the positioning clip. A first single-groove pulley and a double-groove pulley are respectively fixedly sleeved on one of the sub-rods and the other five sub-rods. The first single-groove pulley and the double-groove pulley are connected together through multiple first synchronous belts;

[0009] The wire threading seat moves upward simultaneously or separately with the moving plate to dock with the wiring terminal while carrying the separated high-voltage cables. During the movement, it drives the gears at different positions to rotate by driving the sub-rods, and drives the rack to drive the positioning clip to fix the cables at different heights multiple times.

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

[0011] The sub-rod includes a bottom rod, a middle rod is sleeved on the bottom rod, a separation rod is sleeved on the middle rod, and a top rod is sleeved on the separation rod. The three 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 multiple middle rods together. An upper linkage rod is fixedly sleeved on the outer surfaces of the multiple separation rods together. A lower electric push rod is assembled on the back plate. 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 through a mounting plate. 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] Short key grooves are opened at the tops of the bottom rod and the middle rod. Short key blocks adapted to the short key grooves are fixed at the tops of the inner walls of the middle rod and the separation rod. A long key groove is opened at the top of the separation rod. A long key block adapted to the long key groove is fixed on the inner wall of the top rod.

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

[0017] Multiple through holes adapted to the rack are opened on the back plate. An installation groove is opened on one side wall of the through hole. A clamping column is connected in the installation groove through a first spring. Multiple limiting grooves adapted to the clamping column are opened on the outer wall of the rack.

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

[0019] A connecting pipe is inserted into the positioning clamp through a slot. A clamping piece is fixed at one end of the connecting pipe that penetrates into the positioning clamp. A connecting rod is connected in the connecting pipe through a second spring, and a pressing top plate is fixed at one end of the connecting rod.

[0020] A third spring is fixed on one side of the pressing top plate, and one end of the third spring is fixed to the back of the positioning clamp. A pushing block is fixed on the front of the back plate between two perforations. When the positioning clamp moves inward, the pushing block can push the pressing top plate to move inward, so that the connecting rod and the connecting pipe can push the clamping piece to press against the cable.

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

[0022] The telescopic member includes a positioning pipe fixed to the back plate. Plug rods are inserted at both ends of the positioning pipe, and connection grooves adapted to the plug rods are provided on both sides of the wire threading seat.

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

[0024] Recovery grooves are provided at the tops of both sides of the wire threading seat. Inclined surface clamping strips are connected in the recovery grooves through fourth springs. A connection seat adapted to the wire threading seat is fixed to the top of the front of the back plate. Limit card slots adapted to the inclined surface clamping strips are provided on both sides of the connection seat. An upper inclined arc piece for driving the cable to move upward together with it is fixed in the wire threading seat.

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

[0026] One side of the top of the back plate is rotatably connected to a second single-groove pulley 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 a lead screw on the back plate through a third bearing seat. A guide rod is fixed to the other side of the back plate. A threaded groove adapted to the lead screw is provided at one end of the moving plate. The one end of the moving plate is threadedly sleeved on the lead screw through the threaded groove. A through groove is provided at the other end of the moving plate. The other end of the moving plate is sleeved on the guide rod through the through groove.

[0029] A servo motor is fixed to 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] To sum up, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0031] Through the provided wire splitting unit and distributed driving unit, after the cable enters the tapping box, the end parts of the cables to be tapped are respectively inserted into the wire threading seats at different positions, and driven by the lifting unit, all the cables are driven to move upward together until the ends are in the installation positions, and then butt joint and fixation are carried out. There is no need to carry out butt joint one by one, which greatly improves the tapping efficiency. At the same time, during the moving process, the distributed driving unit can keep multiple positioning clamps at different heights, and after installation, the positioning clamps are controlled to move inward together to clamp and fix the cables from different positions, ensuring the stability and safety of the cables during use. Description of the Drawings

[0032] Figure 1 Shows a three-dimensional structural schematic diagram provided according to an embodiment of the present invention;

[0033] Figure 2 Shows a structural schematic diagram of the non-use state provided according to an embodiment of the present invention;

[0034] Figure 3 Shows a structural schematic diagram of the use state provided according to an embodiment of the present invention;

[0035] Figure 4 Shows a structural splitting schematic diagram of the branch rod provided according to an embodiment of the present invention;

[0036] Figure 5 Shows a [part] provided according to an embodiment of the present invention Figure 2 An enlarged view of part A in [figure];

[0037] Figure 6 Shows a [part] provided according to an embodiment of the present invention Figure 3 An enlarged view of part B in [figure];

[0038] Figure 7 Shows a schematic diagram of the internal structure after partial sectioning of the wire threading seat provided according to an embodiment of the present invention;

[0039] Figure 8 Shows a schematic diagram of the internal structure after partial sectioning of the positioning clamp provided according to an embodiment of the present invention;

[0040] Figure 9 Shows a schematic diagram of the installation position of the back plate provided according to an embodiment of the present invention;

[0041] Figure 10 Shows a [part] provided according to an embodiment of the present invention Figure 4 An enlarged view of part C in [figure];

[0042] Figure 11 Shows a [part] provided according to an embodiment of the present invention Figure 4 An enlarged view of part D in [figure].

[0043] Legend Explanation:

[0044] 10. Tap box;

[0045] 20. Backplane;

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

[0047] 40. Wire splitting unit; 41. Telescopic member; 4101. Positioning tube; 4102. Insertion rod; 42. Wire threading base; 43. Positioning clamp; 44. Perforation; 45. Clamping post; 46. Limiting groove; 47. Connecting tube; 48. Clip; 49. Supporting top plate; 410. Third spring; 411. Pushing block; 412. Inclined surface clamping strip; 413. Connecting seat; 414. Upper inclined arc plate;

[0048] 50. Sub - driving unit; 51. Sub - 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 Implementation Manner

[0049] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0050] As Figure 1 - Figure 11 shown, what the present invention provides:

[0051] An efficient wire splitting and optimization mechanism for a low - voltage cable tap box, including a tap box 10 and a backplane 20 assembled in the tap box 10. A lifting unit 30 is assembled on the backplane 20, and the lifting unit 30 is connected to a wire splitting unit 40 through a moving plate 34.

[0052] As Figure 1 、 Figure 2 、 Figure 3 and Figure 9As shown in the figure, the wire splitting unit 40 includes a telescopic member 41 fixed on the moving plate 34. A wire threading base 42 is inserted into the end of the telescopic member 41. An upper inclined arc plate 414 for driving the cable to move upward together with it is fixed inside the wire threading base 42. A positioning clip 43 is slidably installed at the bottom end of the wire threading base 42. Specifically, there are multiple positioning clips 43. The positioning clip 43 at the uppermost position is slidably connected to the wire threading base 42, and the remaining positioning clips 43 are sequentially slidably connected to the one above. At the same time, there are multiple upper inclined arc plates 414, which are arranged in a circle, and the overall shape formed is conical, making it have a one-way function. When the cable penetrates into the wire threading base 42, under the action of the upper inclined arc plate 414, when the wire threading base 42 moves upward, it will drive the cable to move upward together with the upper inclined arc plate 414;

[0053] Preferably, a set screw is threadedly inserted through the front surface of the wire threading base 42, which can be fixed by the set screw after the cable penetrates, so that the cable can move together when the wire threading base 42 moves. At the same time, it can also not be fixed in advance. When the wire threading base 42 drives the cable to move to the installation position and is installed in cooperation with the upper inclined arc plate 414, then tighten the set screw to perform secondary fixation on the cable;

[0054] A plurality of through holes 44 adapted to the rack 53 are opened on the back plate 20. An installation groove is opened on one side wall of the through hole 44. A clamping post 45 is connected in the installation groove through a first spring. A plurality of limiting grooves 46 adapted to the clamping post 45 are opened on the outer wall of the rack 53;

[0055] Specifically, during the process of the wire threading base 42 driving the end of the cable to move, when the lowermost positioning clip 43 moves to correspond to the lowermost through hole 44, start the micro motor 59 to control the rotation of the branch rod 51, and then the branch rod 51 drives the lowermost gear 52 to rotate, so that the rack 53 of the lowermost positioning clip 43 enters the lowermost through hole 44. It should be noted that when the rack 53 moves inward and the clamping post 45 is stuck into the first limiting groove 46, the lowermost positioning clip 43 is separated from the positioning clip 43 above it, and at this time the positioning clip 43 does not play a role in fixing the cable either;

[0056] When the middle positioning clip 43 moves to the through hole 44 at the corresponding middle position, first start the lower electric push rod 57 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, when the micro motor 59 is started, the bottom rod 511 will not rotate together 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 post 45 is stuck into 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 and reset;

[0057] Then, when the top positioning clip 43 moves into the top perforation 44 and separates from the wire threading base 42, start the upper electric push rod 58 to push the separation rod 513 to separate from the middle rod 512. At this time, after starting the micro motor 59, 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 top positioning clip 43 to move into the perforation 44 until the clamping post 45 is clamped into the first limiting groove 46. Then, start the upper electric push rod 58 again to move the separation rod 513 downward and reset it, so that the separation rod 513 is reconnected to the middle rod 512;

[0058] In addition, it should be noted that the middle gear 52 is twice the length of the other two gears 52. When the middle positioning clip 43 is displaced to correspond to the middle perforation 44 when the middle rod 512 has not moved upward (i.e., in the state of not being separated from the bottom rod 511), the middle gear 52 meshes with the rack 53 on the middle positioning clip 43. After the middle rod 512 moves upward and separates from the bottom rod 511, the middle gear 52 moves upward together with the middle rod 512. After the movement ends, the gear 52 still meshes with the rack 53 on the middle positioning clip 43. The upper part of this gear 52 will be located on one side of the rack 53 on the top positioning clip 43. Compared with the rack 53 on the middle positioning clip 43, the size of the rack 53 on the top positioning clip 43 is smaller than that of the rack 53 on the middle positioning clip 43. That is, this gear 52 does not mesh with the top rack 53. When this gear 52 rotates, it will only drive the rack 53 on the middle positioning clip 43 to move;

[0059] As Figure 7 shown, recovery grooves are provided at the tops on both sides of the wire threading base 42. In the recovery grooves, inclined surface clamping strips 412 are connected through the fourth spring. At the top of the front surface of the back plate 20, a connection seat 413 adapted to the wire threading base 42 is fixed. Limiting card slots adapted to the inclined surface clamping strips 412 are provided on both sides of the connection seat 413;

[0060] Specifically, when the wire threading base 42 moves to the top, it will be clamped with the connection seat 413, and under the drive of the fourth spring, the inclined surface clamping strips 412 are clamped into the limiting card slots, so that the wire threading base 42 is fixed in the connection seat 413 to prevent it from sliding downward by itself when not in use.

[0061] As Figure 2 and Figure 7 shown, the telescopic member 41 includes a positioning tube 4101 fixed to the back plate 20. Plug rods 4102 are inserted at both ends of the positioning tube 4101. Connection grooves adapted to the plug rods 4102 are provided on both sides of the wire threading base 42;

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

[0063] As Figure 1 Figure 2 、 Figure 3 and Figure 6 As shown in ,

[0063] , Figure 1 , Figure 2 , Figure 3 , Figure 6 , a partial driving unit 50 for driving the positioning clip 43 to move is assembled on the front surface of the back plate 20. The partial driving unit 50 includes multiple partial rods 51 rotatably connected to the back plate 20 through the first bearing seats. Three gears 52 are fixedly sleeved on each of the multiple partial rods 51. A rack 53 adapted to the gears 52 is fixed on the back surface of the positioning clip 43. A first single-groove pulley and a double-groove pulley are respectively fixedly sleeved on one of the partial rods 51 and the other five partial rods 51. The first single-groove pulley and the double-groove pulley are connected together through multiple first synchronous belts 54;

[0064] The wire threading seats 42 follow the moving plate 34 to drive the separated high-voltage cables to move upward simultaneously or separately to dock with the wiring terminals, and drive the gears 52 at different positions to rotate by driving the partial rods 51 during the movement, so as to drive the rack 53 to drive the positioning clip 43 to fix the cables at different heights multiple times;

[0065] One side of the top of the back plate 20 is rotatably connected with a second single-groove pulley through a second bearing seat. The second single-groove pulley is connected to one of the double-groove pulleys through a second synchronous belt. The bottom end of the second single-groove pulley is connected with a micro motor 59, 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 synchronous belts, multiple partial rods 51 can be driven to move together.

[0067] As Figure 4 、 Figure 10 and Figure 11As shown, the branch rod 51 includes a bottom rod 511, a middle rod 512 is sleeved on the bottom rod 511, a separating rod 513 is sleeved on the middle rod 512, a top rod 514 is sleeved on the separating rod 513, and three gears 52 are respectively assembled on the bottom rod 511, the middle rod 512 and the top rod 514;

[0068] A lower linkage rod 55 is fixedly sleeved on the outer surfaces of multiple middle rods 512, an upper linkage rod 56 is fixedly sleeved on the outer surfaces of multiple separating rods 513, a lower electric push rod 57 is assembled 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 on the lower linkage rod 55 through a mounting plate, and one end of the upper electric push rod 58 is connected to the upper linkage rod 56;

[0069] Short key grooves are formed at the tops of the bottom rod 511 and the middle rod 512, short key blocks adapted to the short key grooves are fixedly arranged at the tops of the inner walls of the middle rod 512 and the separating rod 513, a long key groove is formed at the top of the separating rod 513, and a long key block adapted to the long key groove is fixedly arranged on the inner wall of the top rod 514;

[0070] Specifically, when the short key block in the middle rod 512 is separated from the short key groove in the bottom rod 511 and the middle rod 512 rotates, the bottom rod 511 will not rotate together. Similarly, when the short key block in the separating rod 513 is separated from the short key groove in the middle rod 512 and the separating rod 513 rotates, the middle rod 512 will not rotate together. It should be noted that during the up and down movement of the separating rod 513, the long key block in the top rod 514 is always located in the long key groove in the separating rod 513, so that the top rod 514 can always rotate together with the separating rod 513;

[0071] As Figure 2 、 Figure 3 and Figure 8 shown, a connecting pipe 47 is inserted into the positioning clip 43 through a slot opened therein. One end of the connecting pipe 47 penetrating into the positioning clip 43 is fixed with a clip piece 48. A connecting rod is connected in the connecting pipe 47 through a second spring. One end of the connecting rod is fixed with a pressing top plate 49. A third spring 410 is fixed on one side of the pressing top plate 49. One end of the third spring 410 is fixed to the back of the positioning clip 43. A pushing block 411 is fixed on the front of the back plate 20 near the two perforations 44. When the positioning clip 43 moves inward, the pushing block 411 can push the pressing top plate 49 to move inward, so that the connecting rod together with the connecting pipe 47 can push the clip piece 48 to press against 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 Figure 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 lowermost positioning clip 43 moves to a position corresponding to the perforations 44 above and below the back panel 20, start the micro motor 59. The micro motor 59 drives the dividing rod 51 to rotate through a synchronous belt and a pulley, and then drives the gear 52 to rotate. 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 perforation 44;

[0079] When the rack 53 moves into the perforation 44 and the clamping post 45 snaps into the first limiting groove 46, the lowermost positioning clip 43 completes the preliminary fixation;

[0080] For the middle and upper positioning clips 43, the up and down movement of the middle rod 512 and the separating rod 513 needs to be controlled by the lower electric push rod 57 and the upper electric push rod 58 respectively to achieve the meshing and driving of the gear 52 and the corresponding rack 53. Specifically, when the gear 52 on the middle rod 512 (or the separating rod 513) needs to mesh with the corresponding rack 53, first lift it to a position separated from the lower rod by the electric push rod, then start the micro motor 59 for driving. After the driving is completed, reset it to the initial position by the electric push rod.

[0081] 4. Final fixation of the cable: When all the positioning clips 43 have moved into the corresponding perforations 44 and completed the preliminary fixation, start the micro motor 59 again to rotate all the dividing 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 moving inward. During the movement, the push block 411 will push the abutting top plate 49 (and the connecting rod and the connecting pipe 47), and then the clamping piece 48 will abut against the outer wall of the cable to achieve the final fixation of the cable;

[0082] 5. Fixation of the wire threading base 42 and cable installation: When the wire threading base 42 moves to the connecting seat 413 at the top of the back panel 20, the inclined surface clamping strip 412 will snap into the limit card slot under the action of the fourth spring to achieve the fixation of the wire threading base 42. At this time, the docking and installation work of the cable and the wiring terminal can be carried out.

[0083] 6. Maintenance and repair: When maintenance and repair are required, the wire threading base 42 and the moving plate 34 can be selectively connected or separated by sliding the insertion rod 4102, and then start the servo motor 33 to lower the moving plate 34, thereby driving the wire threading base 42 and the cable thereon to descend to a position convenient for operation.

[0084] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and 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 division 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 three 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 5 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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