Outdoor combined cable branch box

Abstract

The application relates to the technical field of cable branch boxes, and particularly discloses an outdoor combined cable branch box, which comprises a branch box assembly, the branch box assembly comprises a bottom box, three wire guide holes for the passage of cables are arranged in the bottom of the bottom box, a protective tube is fixedly installed at the position corresponding to the wire guide hole in the bottom of the bottom box, a top box is arranged at the top of the bottom box, four groups of moving tables are symmetrically arranged on the outer wall of the bottom box, and a limiting frame is slidably installed at the top of the moving table; after assembly, the cable is pulled to the outside of the bottom box, the cable is temporarily limited by using the limiting support mechanism, subsequent operations such as stripping of the protective layer of the cable are facilitated for the operator, after the operation is completed, the stripped cable core wire is connected with the joint in the top box, after the connection is completed, the moving table is placed in the bottom box, and the limiting support mechanism can support the connection between the cable core wire and the joint in the top box, so that the problem that the connection is broken due to the falling of the cable under the long-term action of gravity is avoided.

Description

Technical Field

[0001] This invention relates to the field of cable branch box technology, and more particularly to an outdoor combined cable branch box. Background Technology

[0002] Cable branch boxes are used only for cable branching. Their main function is to split or transfer cables.

[0003] Cable distribution boxes installed outdoors require pulling cables from underground cable trenches into the distribution box. After stripping the cable sheath, the cable core inside the sheath is then connected to the inlet and outlet connectors inside the distribution box. This process requires manual pulling of the cable and the use of tools to strip the sheath, which is inconvenient. Furthermore, the cable is prone to slipping down due to gravity. Additionally, once the cable core is connected to the connector and put into use, the cable may sag due to its own weight or ground subsidence. This can cause the connection between the cable core and the connector to crack due to prolonged sag, affecting the normal use of the distribution box. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing an outdoor combined cable branch box.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An outdoor modular cable branch box includes a branch box assembly. The branch box assembly includes a base box with three wire openings at the bottom for cables to pass through. Protective tubes are fixedly installed at the bottom of the base box corresponding to the wire openings. A top box is provided on the top of the base box. Four sets of movable platforms are symmetrically arranged on the outer wall of the base box. Limiting frames are slidably installed on the top of the movable platforms. A connecting rod 1 is movably installed on the side of the movable platform away from the base box. A connecting rod 2 is movably installed on the connecting rod 1. An installation assembly 1 is provided between the connecting rod 1 and the connecting rod 2. An installation plate is fixedly installed at the end of the connecting rod 1 away from the connecting rod 2. A connecting rod 3 is rotatably installed on the installation plate. A connecting rod 4 is provided on the connecting rod 3. A limiting support mechanism including a telescopic rod and an installation seat is provided between the two horizontal installation plates.

[0007] The two sets of telescopic rods are fixedly installed on one side of the two sets of horizontal mounting plates that are close to each other. Three sets of mounting seats are provided between the two sets of mounting plates. A hollow box is fixedly installed on the top of the mounting seat. A rotating shaft is rotatably installed on the top of the hollow box. A ratchet and a pawl are rotatably installed inside the hollow box. A connecting frame is fixedly installed on the rotating shaft. A push block is slidably installed on the connecting frame. A spring three is fixedly installed between the connecting frame and the push block. The two ends of the spring three are fixedly connected to the connecting frame and the push block, respectively. A clamping plate one is rotatably installed on the connecting frame. A clamping plate two is rotatably installed on the side of the connecting frame opposite to the clamping plate one. A drive rod is rotatably installed on both the clamping plate one and the clamping plate two. One end of the drive rod is rotatably connected to the push block.

[0008] Preferably, the connecting assembly includes a comb tooth frame one, which is fixedly installed on a comb tooth frame one on one side, and a comb tooth frame two is fixedly installed on a movable platform on the other side. The comb tooth frame two is slidably connected to the comb tooth frame one, and the comb teeth on the comb tooth frame one and the comb tooth frame two are staggered. Both the comb tooth frame one and the comb tooth frame two are provided with threaded holes at equal intervals, and bolts are threaded into the threaded holes. The comb tooth frame one and the comb tooth frame two are fixed by bolt threads.

[0009] Preferably, the mounting base in the middle position is fixedly connected to the telescopic ends of the two sets of telescopic rods, and the mounting bases on both sides are provided with through holes, through which the telescopic ends of the telescopic rods pass and extend to the outside of the through holes.

[0010] Preferably, an intermediate shaft one is fixedly installed on the mounting plate on one side, and an intermediate shaft two is fixedly installed on the mounting plate on the other side. The included angle between intermediate shaft one and intermediate shaft two is 180°. Movable blocks are fixedly installed on all three sets of mounting seats. Two through holes are opened on the movable blocks. Intermediate shaft one and intermediate shaft two both pass through the through holes on the movable blocks and extend to the outside of the through holes.

[0011] Preferably, the limiting support mechanism further includes side rings. Four sets of side rings are fixedly installed on both sides of two sets of movable blocks located on both sides. The side rings are slidably connected to the corresponding intermediate shaft one and intermediate shaft two. Cable ties are fixedly installed on the side rings. The cable ties on one side of the movable block are sleeved with the intermediate shaft, and the cable ties on the other side of the movable block are sleeved with the intermediate shaft two.

[0012] Preferably, the installation component one includes a rotating block one, which is fixedly installed on the connecting rod two. An extension short shaft one is fixedly installed at the bottom of the rotating block one. The extension short shaft one is rotatably installed on the connecting rod one. A torsion spring is sleeved on the extension short shaft one. A groove is provided on the connecting rod one. The extension short shaft one extends all the way to the inside of the groove and is rotatably installed inside the groove. A synchronization groove one is provided on the outer circular wall of the extension short shaft one. A limit block one is slidably installed inside the groove on the connecting rod one. A slot is provided on the rotating block one at the position corresponding to the limit block one. A synchronization shaft one is fixedly installed on the side of the limit block one near the extension short shaft one. The synchronization shaft one is slidably installed inside the synchronization groove one. An anti-detachment block one is slidably installed inside the groove on the connecting rod one. Two slots adapted to the anti-detachment block one are provided on the limit block one. A spring four is fixedly installed on the connecting rod one. One end of the spring four is fixedly connected to the anti-detachment block one.

[0013] Preferably, the second mounting component includes a rotating block, which is fixedly mounted on the connecting rod, and the connecting rod has a groove. An extension short shaft is fixedly mounted on the rotating block, and the extension short shaft is rotatably mounted on the connecting rod. The extension short shaft extends into the groove and is rotatably mounted inside the groove. A synchronization groove is formed on the outer circular wall of the extension short shaft. A locking block is slidably mounted inside the groove on the connecting rod, and a synchronization shaft is fixedly mounted on the locking block. The synchronization shaft is slidably connected to the synchronization groove. A locking slot is formed on the rotating block corresponding to the locking block. An anti-detachment block is slidably mounted inside the groove on the connecting rod. Two locking slots that match the anti-detachment block are formed on the extension short shaft. A spring is fixedly mounted on the connecting rod, and one end of the spring is fixedly connected to the anti-detachment block.

[0014] Preferably, a fixing ring plate is fixedly installed on the outer wall of the bottom box near the top position, and a closed groove is opened on the top of the fixing ring plate. An installation ring plate is fixedly installed on the outer wall of the top box near the bottom position. The installation ring plate is in contact with the fixing ring plate. Threaded holes are opened at equal intervals on both the installation ring plate and the fixing ring plate. Bolts are threaded inside the threaded holes. A connecting ring plate is fixedly installed on the bottom of the top box, and the connecting ring plate is in contact with the inner wall of the closed groove.

[0015] Preferably, the two sets of moving platforms in the horizontal direction are connected to each other by a connecting component, the limiting frame is slidably installed inside the moving platform, and a spring is fixedly installed inside the moving platform, with the top end of the spring fixedly connected to the limiting frame.

[0016] Preferably, a connecting sleeve shaft is fixedly installed on the side of each of the two sets of transverse moving platforms that are far apart from each other. Connecting rod one and connecting rod two are movably connected to the connecting sleeve shaft. A movable sleeve shaft is slidably installed on the connecting sleeve shaft. The movable sleeve shaft is movably connected to connecting rod three and connecting rod four. A spring two is fixedly installed inside the connecting sleeve shaft. One end of the spring two is fixedly connected to the movable sleeve shaft.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] This invention, equipped with a moving platform, a limiting frame, and connecting components, allows for on-site assembly of the branch box assembly. The distance between the moving platform and the limiting frame is adjusted via the connecting components, enabling auxiliary positioning during assembly. After the base box is installed on a concrete pier above the foundation pit, the cable is pulled from the cable trench into the base box. The top box is then assembled with the base box. After assembly, the cable is pulled to the outside of the base box, and a limiting support mechanism is used to temporarily limit its position, facilitating subsequent operations such as stripping the cable's protective layer. After these operations, the exposed cable core is connected to the connector inside the top box. Once wiring is complete, the moving platform is placed inside the base box, and the limiting support mechanism supports the connection between the cable core and the connector inside the top box, preventing the cable from breaking due to long-term weight-bearing.

[0019] This invention incorporates connecting components. During the splicing of branch box components, a moving platform and a limiting frame assist in the splicing and limiting. After the cable is pulled, a limiting support mechanism is used to limit the cable. When the branch box is used subsequently, the limiting support mechanism supports the cable core wire connection. The distance between the two sets of moving platforms can be adjusted laterally by sliding comb frame one and comb frame two, facilitating the placement of the limiting support mechanism both outside and inside the branch box component.

[0020] This invention utilizes a limiting support mechanism to pull the cable from the underground cable trench and guide it into the bottom box. Temporary fixing tools (such as clamps) are used to temporarily secure the free end of the cable inside the bottom box. After the top box and bottom box are assembled, the cable is pulled out from the bottom box. By adjusting the clamps on the three sets of hollow boxes, the cable is clamped and limited, facilitating the operator's stripping of the cable's protective layer. During subsequent wiring, a moving platform is placed inside the bottom box, and the three sets of hollow boxes and the connecting rod of the intermediate shaft are adjusted to support the connection point between the cable core and the joint inside the top box, preventing the cable from breaking due to long-term weight-bearing. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of an outdoor combined cable branch box proposed in this invention;

[0022] Figure 2 This is a schematic diagram of the structure of the middle branch box assembly of an outdoor combined cable branch box proposed in this invention;

[0023] Figure 3This is a schematic diagram of the state of the limiting support mechanism in an outdoor combined cable branch box proposed in this invention when limiting the cable.

[0024] Figure 4 This is a schematic diagram showing the state of the limiting support mechanism in an outdoor combined cable branch box according to the present invention when it supports the cable.

[0025] Figure 5 This is a schematic diagram of the limiting support mechanism in an outdoor combined cable branch box proposed in this invention;

[0026] Figure 6 for Figure 5 Enlarged view of point A in the middle;

[0027] Figure 7 This is a schematic diagram of the installation of clamp plate one and clamp plate two in an outdoor combined cable branch box proposed in this invention;

[0028] Figure 8 This is a schematic diagram of the installation of the drive rod in an outdoor combined cable branch box proposed in this invention;

[0029] Figure 9 This is a schematic diagram of the installation of connecting rod one and connecting rod two in an outdoor combined cable branch box proposed in this invention;

[0030] Figure 10 This is a schematic diagram of the installation of the movable sleeve shaft in an outdoor combined cable branch box proposed in this invention;

[0031] Figure 11 This is a schematic diagram of the installation of a first component in an outdoor combined cable branch box according to the present invention.

[0032] Figure 12 for Figure 11 Enlarged view of point B in the middle;

[0033] Figure 13 is a schematic diagram of the installation component two in an outdoor combined cable branch box proposed in this invention;

[0034] Figure 14 for Figure 13 Enlarged diagram of point C in the middle.

[0035] In the diagram: 1. Branch box assembly; 11. Bottom box; 12. Top box; 13. Protective pipe; 14. Mounting ring plate; 15. Connecting ring plate; 16. Fixing ring plate; 17. Enclosed slot; 2. Moving platform; 21. Limiting frame; 22. Comb tooth frame one; 23. Comb tooth frame two; 24. Spring one; 25. Connecting sleeve shaft; 26. Movable sleeve shaft; 27. Spring two; 3. Connecting rod one; 31. Connecting rod two; 4. Connecting rod three; 41. Connecting rod four; 5. Mounting plate; 51. Telescopic rod; 52. Intermediate shaft one; 53. Intermediate shaft two; 54. Mounting base; 541. 542. Movable block; 543. Side ring; 544. Cable tie; 545. Hollow box; 55. Rotating shaft; 551. Connecting frame; 552. Spring three; 553. Clamping plate one; 554. Clamping plate two; 555. Push block; 556. Drive rod; 6. Rotating block one; 61. Extension short shaft one; 62. Synchronous groove one; 63. Synchronous shaft one; 64. Limiting block one; 65. Anti-detachment block one; 66. Spring four; 7. Rotating block two; 71. Extension short shaft two; 72. Synchronous groove two; 73. Synchronous shaft two; 74. Locking block; 75. Anti-detachment block two; 76. Spring five. Detailed Implementation

[0036] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0037] Reference Figure 1-14An outdoor modular cable branch box includes a branch box assembly 1, which includes a base box 11. The base box 11 has a hollow structure and is fixedly installed on a cement block above a foundation pit by fasteners. Three cable entry ports are provided at the bottom of the base box 11 for cables to pass through. A protective tube 13, which is a hollow tubular structure, is fixedly installed at the bottom of the base box 11 corresponding to the cable entry ports. A top box 12 is provided at the top of the base box 11. A fixing ring plate 16 is fixedly installed on the outer wall of the base box 11 near the top. A closing groove 17, which is a rectangular annular groove, is provided at the top of the fixing ring plate 16. The outer wall of the top box 12... A mounting ring plate 14 is fixedly installed near the bottom, fitting snugly against a fixed ring plate 16. Both the mounting ring plate 14 and the fixed ring plate 16 have equally spaced threaded holes, with bolts threaded into the holes. A connecting ring plate 15 is fixedly installed at the bottom of the top box 12, fitting snugly against the inner wall of the enclosed groove 17. Four sets of movable platforms 2 are symmetrically arranged on the outer wall of the bottom box 11. Two sets of movable platforms 2 are connected to each other via connecting components. A limit frame 21 is slidably installed on the top of each movable platform 2, extending into the interior of the movable platform 2. The limit frame 21 is slidably installed inside the movable platform 2. A spring 24 is fixedly installed, with its top end fixedly connected to a limiting frame 21. Four sets of limiting frames 21 on both sides can limit the mounting ring plate 14 and the fixed ring plate 16, assisting in the assembly of the branch box assembly 1. A connecting rod 3 is movably installed on the side of the moving platform 2 away from the base box 11. A connecting rod 31 is movably installed on the connecting rod 3. An installation component 1 is provided between the connecting rod 3 and the connecting rod 31, connecting the connecting rod 3 and the connecting rod 31. An installation plate 5 is fixedly installed on the end of the connecting rod 3 away from the connecting rod 31. A limiting support mechanism is provided between the two horizontal installation plates 5. The limiting and supporting mechanism is used for limiting the cable connection and supporting the cable joint position when the branch box is used. A connecting rod 3 4 is rotatably installed on the mounting plate 5. A connecting rod 41 is provided on the connecting rod 3 4. A connecting sleeve shaft 25 is fixedly installed on the side of the two sets of transverse moving platforms 2 that are far apart from each other. The connecting rod 1 3 and the connecting rod 2 31 are movably connected to the connecting sleeve shaft 25. A movable sleeve shaft 26 is slidably installed on the connecting sleeve shaft 25. The movable sleeve shaft 26 is movably connected to the connecting rod 3 4 and the connecting rod 41. A spring 27 is fixedly installed inside the connecting sleeve shaft 25. One end of the spring 27 is fixedly connected to the movable sleeve shaft 26.Equipped with a moving platform 2, a limiting frame 21, and connecting components, the branch box assembly 1 is assembled on-site. The distance between the moving platform 2 and the limiting frame 21 is adjusted using the connecting components to assist in positioning during assembly. After the bottom box 11 is installed on the concrete pier above the foundation pit, the cable is pulled from the cable trench into the bottom box 11. Then, the top box 12 is assembled with the bottom box 11. After assembly, the cable is pulled to the outside of the bottom box 11, and a limiting support mechanism is used to temporarily limit the cable, facilitating subsequent operations such as stripping the cable's protective layer. After these operations, the exposed cable core is connected to the connector inside the top box 12. After wiring, the moving platform 2 is placed inside the bottom box 11, and the limiting support mechanism supports the connection between the cable core and the connector inside the top box 12, preventing the cable from breaking due to long-term weight-bearing.

[0038] Furthermore, the connecting assembly includes a comb tooth holder 22, which is fixedly mounted on one side of the comb tooth holder 22. A comb tooth holder 23 is fixedly mounted on the movable platform 2 on the other side. The comb tooth holder 23 is slidably connected to the comb tooth holder 22. The comb teeth on the comb tooth holder 22 and the comb tooth holder 23 are staggered. Both the comb tooth holder 22 and the comb tooth holder 23 have threaded holes at equal intervals. Bolts are threaded into the threaded holes. The comb tooth holder 22 and the comb tooth holder 23 are connected by bolts. The cable is fixed in place. By setting up connecting components, the moving platform 2 and the limiting frame 21 are used to assist in the splicing and limiting of the branch box assembly 1 during splicing. After the cable is pulled, the limiting support mechanism is used to limit the cable. When the branch box is used laterally, the limiting support mechanism is used to support the cable core wire connection. The distance between the two sets of moving platforms 2 can be adjusted by the sliding comb frame 1 22 and comb frame 23, which facilitates the placement of the limiting support mechanism outside and inside the branch box assembly 1.

[0039] As an optimized solution for an outdoor combined cable branch box according to the present invention, the limiting support mechanism includes telescopic rods 51. Two sets of telescopic rods 51 are fixedly installed on one side of two sets of horizontal mounting plates 5 that are close to each other. Three sets of mounting seats 54 are arranged between the two sets of mounting plates 5. The mounting seat 54 in the middle position is fixedly connected to the telescopic ends of the two sets of telescopic rods 51. The mounting seats 54 on both sides have through holes. The telescopic ends of the telescopic rods 51 pass through the inside of the through holes and extend to the outside of the through holes. An intermediate shaft 52 is fixedly installed on one side of the mounting plate 5, and a central shaft 52 is fixedly installed on the other side of the mounting plate 5. A second intermediate shaft 53 is fixedly installed. The included angle between the first intermediate shaft 52 and the second intermediate shaft 53 is 180°. Movable blocks 541 are fixedly installed on each of the three sets of mounting bases 54. Two through holes are formed on each movable block 541. The first intermediate shaft 52 and the second intermediate shaft 53 pass through the through holes in the movable block 541 and extend to the outside of the through holes. Side rings 542 are fixedly installed on both sides of the two sets of movable blocks 541 located on either side. The side rings 542 are slidably connected to the corresponding first intermediate shaft 52 and second intermediate shaft 53. Cable ties 543 are fixedly installed on the side rings 542. The movable blocks on one side... Cable tie 543 on block 541 is sleeved with intermediate shaft 1 52. When cable tie 543 is tightened, cable tie 543 is secured to intermediate shaft 2 53. Cable tie 543 on the other side of movable block 541 is sleeved with intermediate shaft 2 53. When cable tie 543 is tightened, cable tie 543 is secured to intermediate shaft 1 52. A hollow box 544 is fixedly installed on the top of mounting base 54. A rotating shaft 55 is rotatably installed on the top of hollow box 544. A ratchet and a pawl are rotatably installed inside hollow box 544. The ratchet is fixedly connected to the rotating shaft 55 through a connecting round shaft. The pawl can limit the ratchet. A connecting frame 551 is fixedly installed on the rotating shaft 55. A push block 555 is slidably installed on the connecting frame 551. A spring 3 552 is fixedly installed between the connecting frame 551 and the push block 555. The two ends of the spring 3 552 are fixedly connected to the connecting frame 551 and the push block 555 respectively. A clamping plate 1 553 is rotatably installed on the connecting frame 551. A clamping plate 2 554 is rotatably installed on the side of the connecting frame 551 opposite to the clamping plate 1 553. A drive rod 556 is rotatably installed on both the clamping plate 1 553 and the clamping plate 2 554. One end of the drive rod 556 is rotatably connected to the push block 555.By setting up a limiting support mechanism, the cable is pulled out from the underground cable trench and pulled into the bottom box 11. Temporary fixing tools (such as clamps) are used to temporarily fix the free end of the cable inside the bottom box 11. After the top box 12 is spliced ​​with the bottom box 11, the cable is pulled out from inside the bottom box 11. By adjusting the clamps 553 and 554 on the three sets of hollow boxes 544, the cable is clamped and limited, facilitating the operator to peel off the protective layer of the cable. During subsequent wiring, the moving platform 2 is placed inside the bottom box 11, and the connecting rod 3 of the three sets of hollow boxes 544 and the intermediate shaft 53 is adjusted to support the connection point between the cable core and the joint inside the top box 12, preventing the cable from falling and breaking at the connection point due to long-term gravity.

[0040] As an optimized solution for an outdoor combined cable branch box according to the present invention, the installation component includes a rotating block 6, which is fixedly installed on a connecting rod 31. An extension short shaft 61 is fixedly installed at the bottom of the rotating block 6 and rotatably mounted on the connecting rod 31. A torsion spring is sleeved on the extension short shaft 61. A groove is provided on the connecting rod 3, and the extension short shaft 61 extends into the groove and is rotatably mounted inside it. A synchronization groove 62 is provided on the outer circular wall of the extension short shaft 61. The synchronization groove 62 is an arc-shaped groove. A limiting block 64 is slidably installed inside the groove on the connecting rod 3. The limiting block 64 can slide up and down and move to the outside of the groove. A latch is provided on the rotating block 6 corresponding to the position of the limiting block 64. After the limiting block 64 slides upward to its position, it latches into the latch. A synchronization shaft 63 is fixedly installed on the side of the limiting block 64 near the extension short shaft 61 and slidably mounted on it. Inside the synchronous slot 62, after the limiting block 64 slides down to its position, it can contact the connecting sleeve shaft 25 when the connecting rod 3 slides to limit the sliding of the connecting rod 3. The anti-detachment block 65 is slidably installed inside the groove on the connecting rod 3. The limiting block 64 has two slots that are adapted to the anti-detachment block 65. The anti-detachment block 65 can be inserted into the slots on the limiting block 64. The connecting rod 3 is fixedly installed with a spring 66, one end of which is fixedly connected to the anti-detachment block 65. By setting the installation component 1, when the limiting support mechanism is used to limit and support the cable when the cable protective layer is stripped, the connecting rod 3 and the connecting rod 31 are fully opened and in the same straight line to raise the limiting support mechanism, which is convenient for limiting the cable when the cable protective layer is stripped. When the branch box is used later, the connecting rod 31 is in a folded state to lower the limiting support mechanism, which is convenient for supporting the connection between the cable core and the joint.

[0041] As an optimized solution for an outdoor combined cable branch box according to the present invention, the installation component two includes a rotating block two 7, which is fixedly installed on a connecting rod three 41. A groove is provided on the connecting rod three 4. An extension short shaft two 71 is fixedly installed on the rotating block two 7. The extension short shaft two 71 is rotatably installed on the connecting rod three 4. The extension short shaft two 71 extends all the way to the inside of the groove and is rotatably installed inside the groove. A synchronization groove two 72 is provided on the outer circular wall of the extension short shaft two 71. A locking block 74 is slidably installed inside the groove on the connecting rod three 4. A synchronization shaft two 73 is fixedly installed on the locking block 74. The synchronization shaft two 73 is slidably connected to the synchronization groove two 72. A locking slot is provided on the rotating block two 7 corresponding to the position of the locking block 74. After the locking block 74 slides upward into place, it locks into the inside of the locking slot. An anti-detachment block two 75 is slidably installed inside the groove on the connecting rod three 4. Two anti-detachment blocks two 75 are provided on the extension short shaft two 71. The adapter has a bayonet, and a spring 76 is fixedly installed on the connecting rod 3 4. One end of the spring 76 is fixedly connected to the anti-detachment block 2 75. By setting the installation component 2, when the cable is stripped of its protective layer using the limiting support mechanism, the connecting rod 1 3 and the connecting rod 2 31 are fully extended and aligned in a straight line to raise the limiting support mechanism. The connecting rod 3 4 and the connecting rod 4 41 are also fully extended and aligned in a straight line. The connecting rod 3 4 and the connecting rod 4 41 can support the connecting rod 1 3, the connecting rod 2 31, and the limiting support mechanism. When the branch box is used later, the connecting rod 2 31 is folded down to lower the limiting support mechanism. The connecting rod 1 3 and the connecting rod 2 31 are folded down, and the connecting rod 3 4 and the connecting rod 4 41 are folded down. The connecting rod 3 4 and the connecting rod 4 41 can support the connecting rod 1 3, the connecting rod 2 31, and the limiting support mechanism.

[0042] When using this invention, first install the bottom box 11 on the cement block above the foundation pit, and ensure that the protective pipe 13 can be inserted into the reserved hole on the cement block, and use fasteners to fix the bottom box 11 on the cement block.

[0043] Use pulling tools to pull the cable out of the underground cable trench and pull it until it passes through the protective pipe 13 and enters the bottom box 11. Use temporary fixing tools to fix the free end of the cable.

[0044] Pull out the two horizontal moving platforms 2, and use bolts to fix the comb frame 1 22 and comb frame 23. The two moving platforms 2 can fit against the outer wall of the bottom box 11. At this time, use lifting equipment to lift and assemble the top box 12. When the top box 12 is lowered to connect with the bottom box 11, use the four sets of limit frames 21 on both sides of the connecting rod to assist the connection of the top box 12. The limit frames 21 on both sides can limit and guide the top box 12 from both sides. At the same time, use spring 1 24 to connect with the limit frame 21. The limit frame 21 is in a flexible connection state to avoid the top box 12 from shifting its lifting position and hard collision and squeezing with the limit frame 21.

[0045] After the top box 12 is aligned, the connecting ring plate 15 is inserted into the closed groove 17. The mounting ring plate 14 and the fixing ring plate 16 are threaded together with bolts to complete the splicing and installation of the branch box assembly 1. Then, the connecting rod 1 3 is pulled until the connecting sleeve shaft 25 slides into the interior of the connecting rod 2 31, and the connecting rod 1 3 is rotated and adjusted to an appropriate angle. Then, the movable sleeve shaft 26 is pressed to retract into the interior of the connecting sleeve shaft 25, and the connecting rod 3 4 and the connecting rod 4 41 are rotated to an appropriate angle so that they can effectively support the connecting rod 1 3 and the connecting rod 2 31. The two sets of mounting seats 54 on both sides are moved closer to the middle. A set of mounting bases 54 are installed, and the corresponding cable ties 543 are tightened to limit the mounting bases 54. Then, the clamps 1 553 and 2 554 in the middle position are rotated to make them in a horizontal state. The cable is pulled outward through the clamps 1 553 and 2 554 in the middle position. The clamps 1 553 and 2 554 limit the cable under the action of the spring 3 552. The clamps 1 553 and 2 554 in the two sides are rotated to make them in a longitudinal state so that they can clamp and limit the cable from both sides. Then the operator can perform operations such as peeling off the cable protective layer.

[0046] After the cable protective layer is stripped, the three cable cores wrapped in the protective layer are connected to the joint inside the top box 12. The moving platform 2 is moved to the bottom box 11. The distance between the two sets of moving platforms 2 in the lateral direction is adjusted to adapt to the internal size of the bottom box 11. The sliding connecting rod 1 3 is moved until the connecting sleeve shaft 25 is inside the connecting rod 1 3. The connecting rod 2 31 is then moved to fold towards the side closer to the connecting rod 1 3. At the same time, the anti-detachment block 1 65 is pulled to disengage from the limiting block 1 64. Then the connecting rod 2 31 can be rotated. At the same time as the connecting rod 2 31 is moved, the extended short shaft 1 61 rotates. The limiting block 1 64 moves towards the inside side of the connecting rod 1 3 with the cooperation of the synchronous groove 1 62 and the synchronous shaft 1 63. When the limiting block 1 64 moves into place, the anti-detachment block 1 65 is used to limit the limiting block 1 64. At this time, the limiting block 1 64 can slide and limit the connecting sleeve shaft 25 from inside the connecting rod 1 3. Then the connecting rod 1 3 can be rotated to an appropriate angle.

[0047] Simultaneously, press the movable sleeve shaft 26 to retract it into the interior of the connecting sleeve shaft 25, and rotate the connecting rod three 4 and the connecting rod four 41. Move the connecting rod four 41 to fold it. At the same time, pull the anti-detachment block two 75 to separate it from the locking block 74. When the connecting rod four 41 is moved, the locking block 74 moves and separates from the rotating block two 7 under the cooperation of the synchronous shaft two 73 and the synchronous groove two 72. After the connecting rod four 41 is moved and folded, the connecting rod three 4 is used to effectively support the connecting rod one 3.

[0048] Slide the two sets of mounting seats 54 on both sides to the appropriate position, and tighten the cable tie 543 to limit the mounting seat 54. Rotate and adjust the clamps 553 and 554 on the three sets of mounting seats 54 to the appropriate angle. Adjust the connecting rod 3 to the appropriate angle so that the three cable cores in the cable pass through the interior of the corresponding clamps 553 and 554, so that the clamps 553 and 554 support the connection of the cable cores.

[0049] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

[0050] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. An outdoor modular cable branch box, comprising a branch box assembly (1), characterized in that: The branch box assembly (1) includes a base box (11), with three wire openings at the bottom of the base box (11) for cable passage. A protective tube (13) is fixedly installed at the bottom of the base box (11) corresponding to the wire openings. A top box (12) is provided on the top of the base box (11). Four sets of moving platforms (2) are symmetrically arranged on the outer wall of the base box (11). A limit frame (21) is slidably installed on the top of the moving platform (2). A connecting rod (3) is movably installed on the side of the moving platform (2) away from the base box (11). Connecting rod 1 (3) is movably mounted with connecting rod 2 (31). A mounting assembly 1 is provided between connecting rod 1 (3) and connecting rod 2 (31). A mounting plate (5) is fixedly mounted on the end of connecting rod 1 (3) away from connecting rod 2 (31). Connecting rod 3 (4) is rotatably mounted on mounting plate (5). Connecting rod 4 (41) is provided on connecting rod 3 (4). A limiting support mechanism including telescopic rod (51) and mounting seat (54) is provided between the two horizontal mounting plates (5). Two sets of telescopic rods (51) are fixedly installed on one side of two sets of horizontal mounting plates (5) that are close to each other. Three sets of mounting seats (54) are provided between the two sets of mounting plates (5). A hollow box (544) is fixedly installed on the top of the mounting seat (54). A rotating shaft (55) is rotatably installed on the top of the hollow box (544). A ratchet and a pawl are rotatably installed inside the hollow box (544). A connecting frame (551) is fixedly installed on the rotating shaft (55). A push block (555) is slidably installed on the connecting frame (551). 1) A spring three (552) is fixedly installed between the push block (555) and the spring three (552). The two ends of the spring three (552) are fixedly connected to the connecting frame (551) and the push block (555) respectively. A clamping plate one (553) is rotatably installed on the connecting frame (551). A clamping plate two (554) is rotatably installed on the side of the connecting frame (551) opposite to the clamping plate one (553). A drive rod (556) is rotatably installed on both the clamping plate one (553) and the clamping plate two (554). One end of the drive rod (556) is rotatably connected to the push block (555). The installation assembly includes a rotating block (6), which is fixedly mounted on a connecting rod (31). An extension short shaft (61) is fixedly mounted on the bottom of the rotating block (6). The extension short shaft (61) is rotatably mounted on the connecting rod (3). A torsion spring is sleeved on the extension short shaft (61). A groove is provided on the connecting rod (3). The extension short shaft (61) extends into the groove and is rotatably mounted inside the groove. A synchronization groove (62) is provided on the outer circular wall of the extension short shaft (61). A limit block is slidably mounted inside the groove on the connecting rod (3). (64), a slot is provided on the rotating block (6) corresponding to the position of the limiting block (64), and a synchronous shaft (63) is fixedly installed on the side of the limiting block (64) near the extension short shaft (61). The synchronous shaft (63) is slidably installed inside the synchronous groove (62). An anti-detachment block (65) is slidably installed inside the groove on the connecting rod (3). Two slots are provided on the limiting block (64) that are compatible with the anti-detachment block (65). A spring (66) is fixedly installed on the connecting rod (3). One end of the spring (66) is fixedly connected to the anti-detachment block (65). It also includes a second mounting component disposed between the third (4) and the fourth (41) of the connecting rod. The second mounting component includes a second rotating block (7), which is fixedly mounted on the fourth (41). The third (4) of the connecting rod has a groove. An extension short shaft (71) is fixedly mounted on the second rotating block (7). The extension short shaft (71) is rotatably mounted on the third (4) of the connecting rod. The extension short shaft (71) extends all the way to the inside of the groove and is rotatably mounted inside the groove. A synchronization groove (72) is provided on the outer circular wall of the extension short shaft (71). The third (4) of the connecting rod has a groove (72) on the fourth (41) of the connecting rod. A locking block (74) is slidably installed inside the groove on the connecting rod (74). A synchronous shaft (73) is fixedly installed on the locking block (74). The synchronous shaft (73) is slidably connected to the synchronous groove (72). A slot is opened on the rotating block (7) corresponding to the locking block (74). An anti-detachment block (75) is slidably installed inside the groove on the connecting rod (4). Two slots are opened on the extension short shaft (71) that are compatible with the anti-detachment block (75). A spring (76) is fixedly installed on the connecting rod (4). One end of the spring (76) is fixedly connected to the anti-detachment block (75). A connecting sleeve shaft (25) is fixedly installed on the side of each of the two sets of moving platforms (2) that are far apart from each other. Connecting rod one (3) and connecting rod two (31) are movably connected to the connecting sleeve shaft (25). A movable sleeve shaft (26) is slidably installed on the connecting sleeve shaft (25). The movable sleeve shaft (26) is movably connected to connecting rod three (4) and connecting rod four (41). A spring two (27) is fixedly installed inside the connecting sleeve shaft (25). One end of the spring two (27) is fixedly connected to the movable sleeve shaft (26).

2. The outdoor combined cable branch box according to claim 1, characterized in that: The two sets of moving platforms (2) are connected to each other by a connecting component. The connecting component includes a comb tooth frame one (22). The comb tooth frame one (22) is fixedly installed on one side of the comb tooth frame one (22), and a comb tooth frame two (23) is fixedly installed on the moving platform (2) on the other side. The comb tooth frame two (23) is slidably connected to the comb tooth frame one (22). The comb teeth on the comb tooth frame one (22) and the comb tooth frame two (23) are staggered. The comb tooth frame one (22) and the comb tooth frame two (23) are provided with threaded holes at equal intervals. Bolts are threaded inside the threaded holes. The comb tooth frame one (22) and the comb tooth frame two (23) are fixed by bolt threads.

3. The outdoor combined cable branch box according to claim 1, characterized in that: The mounting base (54) in the middle position is fixedly connected to the telescopic ends of the two sets of telescopic rods (51). The mounting bases (54) on both sides are provided with through holes, and the telescopic ends of the telescopic rods (51) pass through the inside of the through holes and extend to the outside of the through holes.

4. An outdoor combined cable branch box according to claim 3, characterized in that: A central shaft 1 (52) is fixedly installed on one side of the mounting plate (5), and a central shaft 2 (53) is fixedly installed on the other side of the mounting plate (5). The included angle between the central shaft 1 (52) and the central shaft 2 (53) is (180)°. Movable blocks (541) are fixedly installed on all three sets of mounting seats (54). Two through holes are opened on the movable blocks (541). The central shaft 1 (52) and the central shaft 2 (53) both pass through the through holes on the movable blocks (541) and extend to the outside of the through holes.

5. An outdoor combined cable branch box according to claim 1, characterized in that: The limiting support mechanism also includes side rings (542). Four sets of side rings (542) are fixedly installed on both sides of two sets of movable blocks (541) located on both sides. The side rings (542) are slidably connected to the corresponding intermediate shaft one (52) and intermediate shaft two (53). Cable ties (543) are fixedly installed on the side rings (542). The cable ties (543) on one side of the movable block (541) are sleeved with the intermediate shaft one (52), and the cable ties (543) on the other side of the movable block (541) are sleeved with the intermediate shaft two (53).

6. An outdoor combined cable branch box according to claim 1, characterized in that: A fixing ring plate (16) is fixedly installed on the outer wall of the bottom box (11) near the top. A closed groove (17) is opened on the top of the fixing ring plate (16). An installation ring plate (14) is fixedly installed on the outer wall of the top box (12) near the bottom. The installation ring plate (14) fits against the fixing ring plate (16). Threaded holes are opened at equal intervals on both the installation ring plate (14) and the fixing ring plate (16). Bolts are threaded inside the threaded holes. A connecting ring plate (15) is fixedly installed on the bottom of the top box (12). The connecting ring plate (15) fits against the inner wall of the closed groove (17).

7. An outdoor combined cable branch box according to claim 1, characterized in that: The limiting frame (21) is slidably installed inside the moving platform (2), and a spring (24) is fixedly installed inside the moving platform (2). The top of the spring (24) is fixedly connected to the limiting frame (21).

Images