Distribution box capable of preventing cable abrasion

Abstract

The invention discloses a power distribution box capable of preventing cable abrasion, and relates to the technical field of power distribution boxes, the power distribution box comprises a power distribution box body, grid strips are fixedly installed on a back plate of the power distribution box body in an array mode, second fixing holes are formed in the grid strips in an array mode, and an installation long plate is movably installed in the power distribution box body. And fixed partition plates are fixedly installed on the long installation plate in an array mode, the left side and the right side of each fixed partition plate are each fixedly provided with a set of extrusion type air bags and two sets of telescopic air bags, and a cable body is arranged between the two sets of fixed partition plates. According to the invention, the extrusion type air bag and the telescopic air bag which are limited by the limiting grooves are innovatively adopted as a core fixing mechanism, so that bionic self-adaptive flexible clamping of the cable is realized. Specifically, after being inflated, the extrusion type air bag can uniformly wrap the cable and provide surface contact pressure, so that stress concentration points caused by traditional rigid buckles or ribbons are thoroughly avoided, and a cable insulating layer is not damaged.

Description

Technical Field

[0001] This invention relates to the field of distribution box technology, specifically to a distribution box designed to prevent cable wear. Background Technology

[0002] As a key device for power distribution and management, the safety and reliability of the wiring inside the distribution box directly affects the stable operation of the entire power supply system. Currently, cables in the distribution box are typically introduced through inlet holes and initially organized and secured within the box using methods such as cable ties, fasteners, or cable trays. However, existing cable installation and management methods have several inherent defects. First, cable wear is a significant problem. During long-term operation, transformers, switches, and other equipment within the distribution box generate continuous vibrations, causing micro-friction between cables and the sharp edges of the inlet holes, metal partitions within the box, or other cables. This gradually wears down the insulation layer, leading to short circuits, leakage, and even fire risks. Second, the fixing methods are rigid and can cause damage. Common rigid clips or overly tight cable ties can easily create stress concentrations on the cable sheath, potentially becoming new wear points themselves. Furthermore, they are difficult to adapt to cables of different diameters during installation and cannot provide uniform and flexible clamping force.

[0003] Furthermore, the internal layout of existing distribution boxes is extremely fixed. The positions of mounting rails, components, and cable trays are all predetermined, lacking flexibility. When there are numerous components and complex cables inside the box, tangled "flying wires" easily occur, affecting not only aesthetics but also accelerating wear due to mutual interference and the difficulty in effectively securing and fixing the cables. At the same time, this rigid layout also causes significant inconvenience for later maintenance, cable additions, or replacements. Summary of the Invention

[0004] The purpose of this invention is to provide a distribution box that prevents cable wear, thereby solving the problems mentioned in the background art, such as cable wear caused by vibration and hard contact in the distribution box, and the low space utilization efficiency of existing cable bundling devices.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a distribution box for preventing cable wear, comprising a distribution box body, a grid strip fixedly installed in an array on the back plate of the distribution box body, a second fixing hole arrayed on the grid strip, an installation long plate movably installed inside the distribution box body, a fixing partition plate fixedly installed in an array on the installation long plate, a set of compression airbags and two sets of telescopic airbags fixedly installed on the left and right sides of the fixing partition plate, and a cable body disposed between the two sets of fixing partition plates; A pneumatic clamping mechanism, comprising a movable long slot, an air storage chamber, an airtight piston, and a movable air rod. The front side of the mounting plate is provided with a movable long slot and an air storage chamber. An airtight piston is movably inserted into the air storage chamber, and a movable air rod is fixedly installed on the airtight piston. A locking mechanism, comprising a fixed frame and a positioning block, wherein the fixed frame is disposed on one side of the airtight piston, and the positioning block is movably inserted within the fixed frame; The positioning mechanism includes a connecting side plate, a fixed side plate, and a first fixing block. The connecting side plates are movably arranged on the left and right sides of the mounting plate, and the fixed side plates are fixedly installed on both sides of the connecting side plate. Two sets of first fixing blocks are fixedly installed on the rear fixed side plate, and the first fixing blocks are inserted into the second fixing holes.

[0006] Preferably, the pneumatic clamping mechanism further includes a first venting groove, an air-transfer groove, a second venting groove, and a third venting groove. A sealing ring is fixedly installed on the outer side of the airtight piston, and the sealing ring is in contact with the inner wall of the air storage chamber. The movable air rod is movably inserted into the movable long groove. The right end of the air storage chamber has a first venting groove. The rear side of the mounting long plate has an air-transfer groove. The rear side of the mounting long plate has an array of second venting grooves. The position of the second venting groove is opposite to the position of the fixed partition. The fixed partition has a third venting groove. The compression airbag is connected to the air-transfer groove through the third venting groove and the second venting groove.

[0007] Preferably, the compression airbag and the telescopic airbag are connected, and the two sets of telescopic airbags are arranged on the front and rear sides of the compression airbag and the angle between them is obtuse. The fixed partition is T-shaped, and the compression airbag and the telescopic airbag are both housed on the left and right sides of the fixed partition.

[0008] Preferably, the pneumatic clamping mechanism further includes a limiting side plate, a limiting block, a guide block, an outer frame, an inner support rod, and a limiting groove. Two sets of limiting side plates are fixedly installed on the left and right sides of the fixed partition. Limiting blocks are fixedly installed on the upper and lower sides of the limiting side plates. A guide block is fixedly installed on one side of the limiting block. An outer frame is fixedly installed in an array on the upper and lower sides of the telescopic airbag. An inner support rod is fixedly installed inside the telescopic airbag. The inner support rod connects to the upper and lower outer frames. Limiting grooves are opened on the outer frame, and the limiting blocks are inserted into the limiting grooves.

[0009] Preferably, the locking mechanism further includes a movable ring, a fixed sleeve, a movable rod, a first spring, a movable groove, a positioning groove, and a sealing ring. The fixed frame is fixedly installed on the movable air rod. The movable ring is movably disposed within the fixed frame. The fixed sleeve is fixedly installed within the fixed frame. The movable rod is movably inserted into the fixed sleeve. The first spring is disposed within the fixed sleeve and abuts against the lower side of the movable rod. The movable rod is fixedly installed on the lower side of the movable ring. A positioning block is fixedly installed on the upper side of the movable ring. A movable groove is formed on the upper side of the fixed frame. The positioning block is movably inserted into the movable groove. Two sets of positioning grooves are formed on the upper side of the movable groove. The positioning block is engaged in the positioning groove. A sealing ring is fixedly installed on one side of the fixed frame.

[0010] Preferably, the positioning mechanism further includes limiting strips, racks, limiting grooves, connecting plates, shielding blocks, and gears. Two sets of limiting strips are fixedly installed on both the upper and lower sides of the mounting plate. Two sets of racks are movably installed on both the upper and lower sides of the mounting plate. Limiting grooves are opened in the racks, and the limiting strips are inserted into the limiting grooves. The racks are installed on the connecting side plates. Gears are rotatably installed on both the upper and lower sides of the mounting plate. The two sets of racks on the same side mesh with the gears. Two sets of connecting plates are fixedly installed on the upper and lower sides of the fixing frame. The connecting plates are fixedly installed on the racks on the front side. Shielding blocks are fixedly installed on both the upper and lower sides of the mounting plate.

[0011] Preferably, the positioning mechanism further includes a square sleeve rod, a square insert rod, a limiting rod, a second spring, a limiting groove, a first fixing hole, and an anti-slip pad. The square sleeve rod is fixedly installed on the rack, and a square insert rod is movably inserted into the square sleeve rod. The square insert rod is fixedly installed on the connecting side plate, and a limiting rod is fixedly installed inside the square sleeve rod. A second spring is sleeved on the limiting rod, and a limiting groove is opened inside the square insert rod. The limiting rod is movably inserted into the limiting groove. The front fixing side plate has two sets of first fixing holes, the size and position of which are adapted to the size and position of the first fixing block. An anti-slip pad is fixedly installed on the rear fixing side plate.

[0012] Preferably, a wire harness ring is provided between the two sets of grid strips, and a fixing tail block is fixedly installed at both ends of the wire harness ring. A second fixing block is fixedly installed on the fixing tail block, and the second fixing block is engaged in the second fixing hole.

[0013] Preferably, a locking pad is fixedly installed inside the wire harness ring. The locking pad is narrower at the front and wider at the back. A wire support ring is fixedly installed on the front side of the wire harness ring. The side of the fixing point between the wire support ring and the wire harness ring is an arc surface.

[0014] Preferably, each of the two sets of grid strips located in the upper left corner is provided with a long slot for placement, and the width of the long slot is adapted to the diameter of the second fixing hole.

[0015] Compared with existing technologies, the beneficial effects of this invention are as follows: 1. This invention innovatively adopts a compression-type airbag and a telescopic airbag, both limited by a limiting groove, as the core fixing mechanism, achieving a biomimetic adaptive flexible clamping of the cable. Specifically, the compression-type airbag, after inflation, can evenly wrap around the cable, providing surface contact pressure and completely avoiding stress concentration points caused by traditional rigid clips or cable ties, thus preventing damage to the cable insulation layer. At the same time, the telescopic airbags on both sides expand directionally under the guidance of the limiting side plates, forming a continuous and stable overall support matrix. This matrix can efficiently absorb and disperse the vibration energy from equipment operation, converting the harmful fretting friction of the cable into internal damping consumption of the entire flexible structure, greatly suppressing the wear process of the insulation layer from the root, and significantly improving the safety and reliability of the long-term operation of the power distribution system.

[0016] 2. This invention differs from the fixed and rigid internal layout of traditional distribution boxes. By introducing a modular three-dimensional installation platform constructed from grid strips, connecting side plates, and mounting long plates, it achieves spatial adaptability and management flexibility. This system allows the mounting long plates to be flexibly positioned in a two-dimensional plane and can be stacked to achieve vertical expansion, thus intelligently avoiding thick components such as switches and providing reliable intermediate support points for complex "flying wires." This "configurable on demand" capability not only maximizes the utilization of the box space, making the cable layout clear and orderly and avoiding mutual interference, but also simplifies and simplifies the initial installation of equipment and the subsequent addition of lines or maintenance and repair work, significantly reducing operation and maintenance costs and time. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure provided for an embodiment of the present invention; Figure 2 This is a structural schematic diagram of the mounting plate provided in an embodiment of the present invention; Figure 3 This is a schematic diagram of the structural separation at the clamping mechanism provided in an embodiment of the present invention; Figure 4 This is a schematic cross-sectional view of the square sleeve provided in an embodiment of the present invention; Figure 5 This is a front view of the structural cross-section at the mounting plate provided in an embodiment of the present invention; Figure 6 This is a schematic cross-sectional view of the locking mechanism provided in an embodiment of the present invention; Figure 7 This is a rear view of the structural cross-section at the mounting plate provided in an embodiment of the present invention; Figure 8 This is a schematic diagram of the structural separation at the compression airbag provided in an embodiment of the present invention; Figure 9 This is a schematic cross-sectional view of the retractable airbag provided in an embodiment of the present invention; Figure 10 This is a schematic diagram of the structure at the upper left corner of the back panel of the distribution box body provided in an embodiment of the present invention; Figure 11 This is a schematic diagram of the structure at the wire loop provided in an embodiment of the present invention; Figure 12 Provided for embodiments of the present invention Figure 8 A magnified view of part A in the diagram; Figure 13 Provided for embodiments of the present invention Figure 9 A magnified view of part B in the diagram.

[0018] In the diagram: 1. Distribution box body; 2. Grid strip; 3. Mounting plate; 4. Fixed partition; 5. Compression airbag; 6. Telescopic airbag; 7. Cable body; 8. Pneumatic clamping mechanism; 801. Movable slot; 802. Air chamber; 803. Airtight piston; 804. Movable air rod; 805. First vent slot; 806. Air passage slot; 807. Second vent slot; 808. Third vent slot; 809. Limiting side plate; 810. Limiting block; 811. Guide block; 812. Outer frame; 813. Inner support rod; 814. Limiting slot; 9. Locking mechanism; 901. Fixed frame; 902. Movable ring; 903. Fixed sleeve; 904. Movable rod; 905. First spring; 906. Movable slot ; 907, Positioning block; 908, Positioning groove; 909, Sealing ring; 10, Positioning mechanism; 1001, Limiting strip; 1002, Rack; 1003, Limiting slide groove; 1004, Square sleeve rod; 1005, Square insert rod; 1006, Limiting rod; 1007, Second spring; 1008, Limiting circular groove; 1009, Connecting side plate; 1010, Fixing side plate; 1011, First fixing hole; 1012, Anti-slip pad; 1013, First fixing block; 1014, Connecting plate; 1015, Shielding block; 1016, Gear; 11, Cable tie ring; 12, Second fixing hole; 13, Fixing tail block; 14, Second fixing block; 15, Cable support ring; 16, Cable locking pad; 17, Placement groove. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] Please see Figures 1-13 The present invention provides a technical solution: a distribution box for preventing cable wear, comprising a distribution box body 1, a grid strip 2 fixedly installed in an array on the back plate of the distribution box body 1, a second fixing hole 12 arrayed on the grid strip 2, an installation long plate 3 movably installed inside the distribution box body 1, a fixing partition 4 fixedly installed in an array on the installation long plate 3, a set of compression airbags 5 and two sets of telescopic airbags 6 fixedly installed on the left and right sides of the fixing partition 4, and a cable body 7 disposed between the two sets of fixing partitions 4; The pneumatic clamping mechanism 8 includes a movable long slot 801, an air storage chamber 802, an airtight piston 803, and a movable air rod 804. The front side of the mounting plate 3 is provided with a movable long slot 801 and an air storage chamber 802. An airtight piston 803 is movably inserted into the air storage chamber 802. A movable air rod 804 is fixedly installed on the airtight piston 803. The locking mechanism 9 includes a fixed frame 901 and a positioning block 907. The fixed frame 901 is located on one side of the airtight piston 803, and the positioning block 907 is movably inserted into the fixed frame 901. The positioning mechanism 10 includes a connecting side plate 1009, a fixed side plate 1010, and a first fixing block 1013. Connecting side plates 1009 are movably arranged on the left and right sides of the mounting plate 3, and fixed side plates 1010 are fixedly installed on both sides of the connecting side plate 1009. Two sets of first fixing blocks 1013 are fixedly installed on the rear fixed side plate 1010, and the first fixing blocks 1013 are inserted into the second fixing holes 12. This device clamps the cable body 7 using an airbag clamping method. Its characteristic is that the entire air circuit does not have air ports; the high-pressure expansion and negative-pressure containment of the airbag are achieved solely through the movement of the airtight piston 803. This results in good airtightness, making it less prone to leakage and loss of effectiveness during prolonged use. Furthermore, the combination of the compression airbag 5 and the telescopic airbag 6 achieves a claw-like fixing method. This fixing method is more stable than simply using airbag expansion and compression. Additionally, the telescopic airbag 6 itself has a combination of rigidity and flexibility. While ensuring flexible clamping, it also takes into account its own strength and limiting ability, increasing the durability of the equipment during use. In addition, the mounting plates 3 can be assembled at different heights through the positioning mechanism 10, increasing the utilization efficiency of the space inside the distribution box body 1. A cable tie ring 11 is also provided. With the pneumatic clamping mechanism 8 realizing the branch clamping, the cable tie ring 11 has the ability to fix the cable tie, so that the cable body 7 has a reliable and flexible fixing method for both branching and bundling, increasing the efficiency of space utilization inside the distribution box body 1.

[0021] Furthermore, the pneumatic clamping mechanism 8 also includes a first venting groove 805, an air-transfer groove 806, a second venting groove 807, and a third venting groove 808. A sealing ring is fixedly installed on the outer side of the airtight piston 803, and the sealing ring is in contact with the inner wall of the air storage chamber 802. The movable air rod 804 is movably inserted into the movable long groove 801. The right end of the air storage chamber 802 has a first venting groove 805. The rear side of the mounting long plate 3 has an air-transfer groove 806. The rear side of the mounting long plate 3 has an array of second venting grooves 807. The position of the second venting groove 807 is opposite to the position of the fixed partition 4. The fixed partition 4 has a third venting groove 808. The compression airbag 5 communicates with the air-transfer groove 806 through the third venting groove 808 and the second venting groove 807. A schematic diagram of this structure is shown below. Figure 5 , Figure 7 and Figure 8Through the movement of the airtight piston 803, the expansion and contraction of the compression airbag 5 and the telescopic airbag 6 can be realized. The entire air passage is closed, and it has good airtightness when maintaining the same state for a long time. The air in the air passage is not full, and the volume of the air is the capacity of the air storage chamber 802. When the airtight piston 803 is located on the left side of the air storage chamber 802, the compression airbag 5 and the telescopic airbag 6 are in a state of negative pressure contraction. When the airtight piston 803 is located on the right side of the air storage chamber 802, the compression airbag 5 and the telescopic airbag 6 are in a state of expansion. When the airtight piston 803 is not limited, the airtight piston 803 should be in the center of the air storage chamber 802 because of the air pressure balance. Furthermore, the compression airbag 5 and the telescopic airbag 6 are connected. Two sets of telescopic airbags 6 are positioned on the front and rear sides of the compression airbag 5, with an obtuse angle between them. The fixed partition 4 is T-shaped, and both the compression airbag 5 and the telescopic airbag 6 are housed on the left and right sides of the fixed partition 4. A schematic diagram of this structure is shown below. Figure 8 and Figure 9 Under negative pressure, both the compression airbag 5 and the telescopic airbag 6 retract to the left and right sides of the fixed partition 4, allowing the cable body 7 to be clamped between the fixed partition 4. Although the compression airbag 5 and the telescopic airbag 6 are both airbags and have interconnected air paths, their working principles are different. After the compression airbag 5 expands, it stabilizes the cable body 7 by surface contact compression. Its main function is to clamp the cable body 7 and absorb the vibration of the cable body 7, preventing the cable body 7 from making hard contact with the fixed partition 4 due to vibration. After the telescopic airbag 6 expands, it has a greater degree of deformation than the compression airbag 5. Its main function is to limit the cable body 7 in the front and back directions, and it also has the clamping ability through its own deformation, so that the cable body 7 will not detach from the limiting structure formed by the compression airbag 5 and the telescopic airbag 6, increasing the stability of the equipment during use. Furthermore, the pneumatic clamping mechanism 8 also includes limiting side plates 809, limiting blocks 810, guide blocks 811, outer frame 812, inner support rods 813, and limiting grooves 814. Two sets of limiting side plates 809 are fixedly installed on the left and right sides of the fixed partition 4. Limiting blocks 810 are fixedly installed on the upper and lower sides of the limiting side plates 809. A guide block 811 is fixedly installed on one side of the limiting block 810. The outer frame 812 is fixedly installed in an array on the upper and lower sides of the telescopic airbag 6. An inner support rod 813 is fixedly installed inside the telescopic airbag 6. The inner support rod 813 connects to the upper and lower outer frames 812. Limiting grooves 814 are opened on each of the outer frames 812, and the limiting blocks 810 are inserted into the limiting grooves 814. A schematic diagram of this structure is shown below. Figure 8 , Figure 9 , Figure 12 and Figure 13This structure reinforces the telescopic airbag 6 and guides its expansion and contraction. The advantage is that it makes the expansion and contraction path of the telescopic airbag 6 reliable. When under pressure, it can first extend to form a clamping shape, and then expand to clamp the cable body 7, increasing the stability of the equipment during use. In addition, this structure reduces the degree of deformation of the telescopic airbag 6, preventing it from folding up and down. Furthermore, due to the obstruction of the limit side plate 809 and the separation of the outer frame 812 and inner support rod 813, the bending amplitude generated when squeezed by the cable body 7 is reduced, and it will only bend on its own without rotating as a whole. Thus, during the clamping process, the telescopic airbag 6 will form a figure-eight clamping shape, increasing the stability of the cable body 7 when it is fixed. Furthermore, the locking mechanism 9 also includes a movable ring 902, a fixed sleeve 903, a movable rod 904, a first spring 905, a movable groove 906, a positioning groove 908, and a sealing ring 909. A fixed frame 901 is fixedly mounted on the movable gas spring 804. The movable ring 902 is movably disposed within the fixed frame 901. A fixed sleeve 903 is fixedly installed within the fixed frame 901. The movable rod 904 is movably inserted into the fixed sleeve 903. The first spring 905 is disposed within the fixed sleeve 903. The first spring 905 abuts against the lower side of the movable rod 904. The movable rod 904 is fixedly installed on the lower side of the movable ring 902. A positioning block 907 is fixedly installed on the upper side of the movable ring 902. A movable groove 906 is opened on the upper side of the fixed frame 901, and the positioning block 907 is movably inserted into the movable groove 906. Two sets of positioning grooves 908 are opened on the upper side of the movable long groove 801, and the positioning block 907 is engaged in the positioning groove 908. A sealing ring 909 is fixedly installed on one side of the fixed frame 901. A schematic diagram of this structure is shown below. Figure 6 This is the movement and limiting structure of the airtight piston 803. The advantage is that the user can complete the movement and limiting of the airtight piston 803 with one hand, which increases the convenience of using the equipment. This is also a special design for the airtight piston 803 to be in the center of the air storage chamber 802 under normal conditions, so as to avoid the airtight piston 803 from falling out of the hand and resetting due to air pressure during the movement, which increases the convenience of using the equipment. In addition, since the left side of the airtight piston 803 is in a negative pressure state when the airtight piston 803 moves to the right side, in order to prevent gas from entering the air storage chamber 802 from the insertion and installation point of the moving air rod 804 in the air storage chamber 802 due to a long-term negative pressure state, the sealing ring 909 further seals this part, which increases the airtightness of the equipment during use. Furthermore, the positioning mechanism 10 also includes a limiting strip 1001, a rack 1002, a limiting groove 1003, a connecting plate 1014, a shielding block 1015, and a gear 1016. Two sets of limiting strips 1001 are fixedly installed on the upper and lower sides of the mounting plate 3. Two sets of racks 1002 are movably installed on the upper and lower sides of the mounting plate 3. The racks 1002 have a limiting groove 1003 inside, and the limiting strips 1001 are inserted into the limiting grooves 1003. The racks 1002 are installed on the connecting side plate 1009. Gears 1016 are rotatably installed on the upper and lower sides of the mounting plate 3. The two sets of racks 1002 on the same side are meshed with the gears 1016. Two sets of connecting plates 1014 are fixedly installed on the upper and lower sides of the fixing frame 901. The connecting plates 1014 are fixedly installed on the racks 1002 on the front side. Shielding blocks 1015 are fixedly installed on the upper and lower sides of the mounting plate 3. A schematic diagram of the structure is shown below. Figure 2 and Figure 3 This structure allows the connecting side plate 1009 to be clamped between the grid strips 2 as the compression airbag 5 and the telescopic airbag 6 expand. In terms of installation sequence, when using this structure, the mounting plate 3 will be fixed on the grid strip 2 first, and then the compression airbag 5 and the telescopic airbag 6 will fully expand to clamp the cable body 7, realizing the one-step locking installation function and increasing the convenience of using the equipment. The presence of the shielding block 1015 can, on the one hand, shield the movable structure attached to the connecting side plate 1009 to avoid the problem of poor movement due to dust, etc., and on the other hand, it also provides a hand-held surface for the mounting plate 3, increasing the comfort of using the equipment. Furthermore, the positioning mechanism 10 also includes a square sleeve rod 1004, a square insert rod 1005, a limiting rod 1006, a second spring 1007, a limiting circular groove 1008, a first fixing hole 1011, and an anti-slip pad 1012. The square sleeve rod 1004 is fixedly installed on the rack 1002, and the square insert rod 1005 is movably inserted into the square sleeve rod 1004. The square insert rod 1005 is fixedly installed on the connecting side plate 1009, and the square sleeve rod 1004 is fixedly installed with… A limiting rod 1006 is provided, and a second spring 1007 is sleeved on the limiting rod 1006. A limiting circular groove 1008 is opened in the square insert rod 1005, and the limiting rod 1006 is movably inserted into the limiting circular groove 1008. The front fixed side plate 1010 has two sets of first fixing holes 1011, the size and position of which are adapted to the size and position of the first fixing block 1013. An anti-slip pad 1012 is fixedly installed on the rear fixed side plate 1010. A schematic diagram of this structure is shown below. Figure 3 and Figure 4This structure enables the connecting side plate 1009 to have elastic telescopic capabilities. On the one hand, the movement range of the movable air rod 804 is greater than the spacing between the grid bars 2, so the telescopic characteristics are used to accommodate the extra movement. On the other hand, the second spring 1007 can increase the pressure between the mounting plate 3 and the grid bars 2 during installation, thereby increasing the stability of the equipment during installation. In addition, this structure also allows the mounting plates 3 to be assembled with each other, realizing the three-dimensional utilization of the space inside the distribution box body 1. It also conforms to the current habit of workers to place lines with the same function on the same plane when wiring, increasing the functionality of the equipment and the efficiency of the utilization of the space inside the distribution box body 1. Furthermore, a wire harness 11 is provided between the two sets of grid strips 2. Fixed end blocks 13 are fixedly installed at both ends of the wire harness 11, and second fixing blocks 14 are fixedly installed on the fixing end blocks 13. The second fixing blocks 14 engage with the second fixing holes 12. A schematic diagram of this structure is shown below. Figure 10 and Figure 11 The inner diameter of the cable tie ring 11 is larger than the diameter of the cable body 7. The main function of the cable tie ring 11 is to bundle the cable body 7. The structure on the mounting plate 3 can fix and dampen the lines installed on the switch or current protector. However, in order to meet the needs of the line layout, the cable tie ring 11 is set to concentrate the cable body 7 and avoid mutual interference between the cable bodies 7 in space when they are installed. The cable tie ring 11 has the same flexible installation function as the mounting plate 3, realizing the flexible setting of branching and bundling of the wires in the distribution box body 1. This allows the cable body 7 to be designed with a high degree of freedom according to actual needs. In turn, the wear of the cable body 7 is reduced through reasonable design, and the stability of the equipment during use is increased. Furthermore, a locking pad 16 is fixedly installed inside the cable tie 11. The locking pad 16 is narrower at the front and wider at the back. A support ring 15 is fixedly installed on the front side of the cable tie 11. The side of the fixing point between the support ring 15 and the cable tie 11 is an arc surface. A schematic diagram of this structure is shown below. Figure 11 The function of the locking pad 16 is to press the wire. Through its own shape and the elasticity of the cable tie 11, the cable body 7 is concentrated towards the front of the center of the cable tie 11, so that the cable body 7 can be more stable within the cable tie 11. The existence of the support ring 15 is to deal with some situations that require the support of flying wires. The support ring 15 also extends the length of the cable tie 11. Users can also use the method of assembling two sets of cable tie rings 11 to squeeze and fix larger cable body bundles 7, which increases the functionality and adaptability of the equipment during use. Furthermore, each of the two sets of grid strips 2 located in the upper left corner has a long slot 17, the width of which matches the diameter of the second fixing hole 12. A schematic diagram of this structure is shown below. Figure 10This structure allows the cable tie ring 11 to be stored for easy use during installation, and the placement of the long slot 17 on the grid strip 2 at the corner increases the utilization efficiency of the internal space of the distribution box body 1.

[0022] Working principle: When using this invention, the cable body 7 to be fixed is placed between the fixed partitions 4, and then the fixed side plate 1010 is inserted between the grid strips 2. The first fixing block 1013 is aligned with the second fixing hole 12. Then, a finger is inserted between the movable finger rings 902, and the movable finger rings 902 are pressed down, causing the positioning block 907 to disengage from the positioning groove 908. The fixed frame 901 is moved laterally, causing the airtight piston 803 to move in the air storage chamber 802, pushing the gas through the first venting groove 805 into the air passage groove 806, and then through the second venting groove 806. 7 and the third vent groove 808 cause the compression airbag 5 and the telescopic airbag 6 to expand. When the telescopic airbag 6 expands, the limiting block 810 and the guide block 811 guide the outer frame 812 and the telescopic airbag 6 through the limiting groove 814 to expand in a directional manner, thereby forming a wrapping fixation on the cable body 7. The positioning block 907 is moved to the position aligned with the next set of positioning grooves 908, the movable ring 902 is released, the first spring 905 rebounds and causes the positioning block 907 to rise. The positioning block 907 engages in the positioning groove 908 to complete the limiting of the position of the airtight piston 803.

[0023] During the movement of the fixed frame 901, the front rack 1002 is driven to move. Through the meshing between the gear 1016 and another set of racks 1002, the other set of racks 1002 is driven to move, thereby driving the square sleeve rod 1004, the square insert rod 1005 and the connecting side plate 1009 to move. The connecting side plate 1009 will first contact the grid strip 2 and cause the first fixing block 1013 to engage in the second fixing hole 12. Then the square insert rod 1005 will retract into the square sleeve rod 1004 and compress the second spring 1007 to achieve fixation. The same principle applies to the assembly of the mounting plate 3.

[0024] When using the cable tie ring 11, place the cable body 7 in the cable tie ring 11, then pinch the cable tie ring 11 to insert the fixing end block 13 between the two sets of grid strips 2, and release the cable tie ring 11 so that the second fixing block 14 is inserted into the second fixing hole 12.

[0025] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0026] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A distribution box for preventing cable wear, comprising a distribution box body (1), wherein grid strips (2) are fixedly mounted in an array on the back plate of the distribution box body (1), characterized in that: The grid strip (2) is provided with a second fixing hole (12). The power distribution box body (1) is movably installed with a mounting plate (3). The mounting plate (3) is fixedly installed with a fixed partition (4). A set of compression airbags (5) and two sets of telescopic airbags (6) are fixedly installed on both the left and right sides of the fixed partition (4). A cable body (7) is provided between the two sets of fixed partitions (4). A pneumatic clamping mechanism (8) is provided, comprising a movable long slot (801), an air storage chamber (802), an airtight piston (803), and a movable air rod (804). The front side of the mounting plate (3) is provided with a movable long slot (801) and an air storage chamber (802). An airtight piston (803) is movably inserted into the air storage chamber (802), and a movable air rod (804) is fixedly installed on the airtight piston (803). Locking mechanism (9), the locking mechanism (9) includes a fixed frame (901) and a positioning block (907), the fixed frame (901) is disposed on one side of the airtight piston (803), and the positioning block (907) is movably inserted in the fixed frame (901). The positioning mechanism (10) includes a connecting side plate (1009), a fixed side plate (1010), and a first fixing block (1013). The connecting side plate (1009) is movably arranged on the left and right sides of the mounting plate (3). The fixed side plate (1010) is fixedly installed on both sides of the connecting side plate (1009). Two sets of first fixing blocks (1013) are fixedly installed on the rear side of the fixed side plate (1010). The first fixing block (1013) is inserted into the second fixing hole (12).

2. The distribution box for preventing cable wear according to claim 1, characterized in that: The pneumatic clamping mechanism (8) further includes a first venting groove (805), an air passage groove (806), a second venting groove (807), and a third venting groove (808). A sealing ring is fixedly installed on the outer side of the airtight piston (803), and the sealing ring is in contact with the inner wall of the air storage chamber (802). The movable air rod (804) is movably inserted into the movable long groove (801). The first venting groove (805) is opened at the right end of the air storage chamber (802). An air passage groove (806) is provided on the rear side of the mounting plate (3), and a second air passage groove (807) is provided on the rear side of the mounting plate (3). The position of the second air passage groove (807) is opposite to the position of the fixed partition (4). A third air passage groove (808) is provided on each of the fixed partitions (4). The compression airbag (5) is connected to the air passage groove (806) through the third air passage groove (808) and the second air passage groove (807).

3. The distribution box for preventing cable wear according to claim 1, characterized in that: The compression airbag (5) and the telescopic airbag (6) are connected. The two sets of telescopic airbags (6) are arranged on the front and rear sides of the compression airbag (5) and the angle between them is obtuse. The fixed partition (4) is T-shaped. The compression airbag (5) and the telescopic airbag (6) are both housed on the left and right sides of the fixed partition (4).

4. A distribution box for preventing cable wear according to claim 1, characterized in that: The pneumatic clamping mechanism (8) further includes a limiting side plate (809), a limiting block (810), a guide block (811), an outer frame (812), an inner support rod (813), and a limiting groove (814). Two sets of limiting side plates (809) are fixedly installed on the left and right sides of the fixed partition (4). Limiting blocks (810) are fixedly installed on the upper and lower sides of the limiting side plate (809). A guide block (811) is fixedly installed on one side of the limiting block (810). An outer frame (812) is fixedly installed on the upper and lower sides of the telescopic airbag (6). An inner support rod (813) is fixedly installed inside the telescopic airbag (6). The inner support rod (813) connects to the upper and lower outer frames (812). A limiting groove (814) is opened on each of the outer frames (812). The limiting block (810) is inserted into the limiting groove (814).

5. A distribution box for preventing cable wear according to claim 1, characterized in that: The locking mechanism (9) further includes a movable ring (902), a fixed sleeve (903), a movable rod (904), a first spring (905), a movable groove (906), a positioning groove (908), and a sealing ring (909). The fixed frame (901) is fixedly installed on the movable air rod (804). The movable ring (902) is movably disposed within the fixed frame (901). The fixed sleeve (903) is fixedly installed within the fixed frame (901). The movable rod (904) is movably inserted into the fixed sleeve (903). The first spring (905) is disposed within the fixed sleeve (903). The first spring (905) abuts against the lower side of the movable rod (904). The movable rod (904) is fixedly installed on the lower side of the movable ring (902). A positioning block (907) is fixedly installed on the upper side of the movable ring (902). A movable groove (906) is opened on the upper side of the fixed frame (901). The positioning block (907) is movably inserted into the movable groove (906). Two sets of positioning grooves (908) are opened on the upper side of the movable long groove (801). The positioning block (907) is engaged in the positioning groove (908). A sealing ring (909) is fixedly installed on one side of the fixed frame (901).

6. A distribution box for preventing cable wear according to claim 1, characterized in that: The positioning mechanism (10) further includes a limiting strip (1001), a rack (1002), a limiting groove (1003), a connecting plate (1014), a shielding block (1015), and a gear (1016). Two sets of limiting strips (1001) are fixedly installed on the upper and lower sides of the mounting plate (3), and two sets of racks (1002) are movably installed on the upper and lower sides of the mounting plate (3). The racks (1002) have limiting grooves (1003) inside them, and the limiting strips (1001) are inserted into the limiting grooves. Inside the groove (1003), the rack (1002) is mounted on the connecting side plate (1009). Gears (1016) are rotatably mounted on both the upper and lower sides of the mounting plate (3). Both sets of racks (1002) on the same side mesh with the gears (1016). Two sets of connecting plates (1014) are fixedly mounted on the upper and lower sides of the fixing frame (901). The connecting plates (1014) are fixedly mounted on the rack (1002) on the front side. Shielding blocks (1015) are fixedly mounted on both the upper and lower sides of the mounting plate (3).

7. A distribution box for preventing cable wear according to claim 6, characterized in that: The positioning mechanism (10) further includes a square sleeve rod (1004), a square insert rod (1005), a limiting rod (1006), a second spring (1007), a limiting circular groove (1008), a first fixing hole (1011), and an anti-slip pad (1012). The square sleeve rod (1004) is fixedly installed on the rack (1002), and the square insert rod (1005) is movably inserted into the square sleeve rod (1004). The square insert rod (1005) is fixedly installed on the connecting side plate (1009), and the limiting rod (1006) is fixedly installed inside the square sleeve rod (1004). The positioning rod (1006) is fitted with a second spring (1007). The square insert rod (1005) has a limiting groove (1008) inside. The limiting rod (1006) is movably inserted into the limiting groove (1008). The front fixed side plate (1010) has two sets of first fixing holes (1011). The size and position of the first fixing holes (1011) are adapted to the size and position of the first fixing block (1013). The rear fixed side plate (1010) is fixedly installed with an anti-slip pad (1012).

8. A distribution box for preventing cable wear according to claim 1, characterized in that: A wire harness ring (11) is provided between the two sets of grid strips (2). Fixed tail blocks (13) are fixedly installed at both ends of the wire harness ring (11). A second fixing block (14) is fixedly installed on the fixed tail block (13). The second fixing block (14) is engaged in the second fixing hole (12).

9. A distribution box for preventing cable wear according to claim 8, characterized in that: A locking pad (16) is fixedly installed inside the wire harness (11). The locking pad (16) is narrow at the front and wide at the back. A support ring (15) is fixedly installed on the front side of the wire harness (11). The side of the fixing point between the support ring (15) and the wire harness (11) is an arc surface.

10. A distribution box for preventing cable wear according to claim 1, characterized in that: The two sets of grid strips (2) located in the upper left corner are provided with placement slots (17), the width of which is adapted to the diameter of the second fixing hole (12).

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