Comprehensive distribution box with fixed clamping protection device

Abstract

The invention relates to the technical field of power distribution cabinets, and discloses a comprehensive power distribution box with a fixed clamping protection device, which comprises a power distribution box body, the left side of the front part of the power distribution box body is provided with a limiting assembly, and the left and right sides of the interior of the power distribution box body are both provided with dust removal assemblies. The power distribution box comprises a power distribution box body, the upper side and the lower side of the interior of the power distribution box body are each provided with two conducting bar assemblies, the left side and the right side of the inner wall of the power distribution box body are each provided with an adjusting assembly, and the sides, close to each other, of the two adjusting assemblies are provided with locking assemblies; the anti-reset assembly is used for preventing the door of the distribution box from being accidentally closed in severe weather. After the fan is started, the fan drives the connecting shaft to rotate, dust and impurities are prevented from being accumulated in the box, the problem that the insulating property is reduced due to dust is avoided, faults such as tripping and burning caused by overheating can be avoided, and the service life of elements is prolonged.

Description

Technical Field

[0001] This invention relates to the field of power distribution cabinet technology, and in particular to a comprehensive power distribution box with a fixed clamping protection device. Background Technology

[0002] A distribution cabinet is a closed or semi-closed metal cabinet that integrates electrical components such as circuit breakers, contactors, and relays. Electrical connections between components are achieved through copper busbars or cables. It is installed in building power distribution rooms or equipment sites and can distribute 380V or 220V power, control the on / off state of circuits, and detect current and voltage parameters. It also has overload or short-circuit protection functions and is the core equipment for power system distribution and control. When integrated distribution boxes are used in scenarios with frequent vibration, high risk of external force collisions, bumpy installation environments, or when long-term stable fixation of internal components is required, and it is necessary to prevent component loosening that could lead to short circuits, open circuits, or other faults, integrated distribution boxes with fixing and clamping protection devices are used.

[0003] The core function of an integrated distribution box equipped with a fixed clamping protection device is to securely limit the internal components through a clamping structure, preventing components from loosening due to vibration during equipment operation or minor external impacts. This also prevents problems such as open circuits and short circuits caused by poor contact. In addition, when a circuit experiences overload, leakage, or other faults, the protective components inside the box can respond quickly, achieving initial isolation of the faulty line and preventing the fault from spreading and affecting the entire power system. This buys time for troubleshooting and comprehensively ensures the safety and stability of the power system.

[0004] In existing technologies, most mainstream distribution box doors adopt a single positioning mode. Single positioning devices are mostly fixed by a single slot or damping, and only support fixed angles such as 90 degrees. This makes it difficult to adapt to different work space requirements. This design has a very high risk of positioning failure under external interference, such as collisions at the construction site or the effects of wind outdoors, which can easily cause the box door to close accidentally. The safety hazards caused by the accidental closure of the box door are particularly prominent: the operator's hands are easily pinched, and more seriously, it can cause short circuits in the circuit being worked on, damage to testing instruments, and even electric shock accidents. At the same time, the repeated opening and closing of the box door will interrupt the work process, reduce maintenance efficiency, and easily delay the time for fault handling in emergency repair scenarios. Summary of the Invention

[0005] The purpose of this invention is to provide an integrated distribution box with a fixed clamping protection device, which solves the problem that most mainstream distribution box doors in the prior art adopt a single positioning mode.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a comprehensive distribution box with a fixed clamping protection device, comprising a distribution box body, a limit component installed on the front left side of the distribution box body, dust removal components installed on both the left and right sides of the interior of the distribution box body, two conductive busbar components installed on both the upper and lower sides of the interior of the distribution box body, adjustment components installed on both the left and right sides of the inner wall of the distribution box body, and a locking component provided on the adjacent side of the two adjustment components;

[0007] The limiting component includes two support blocks and an anti-reset component. The rear sides of the two support blocks are fixedly connected to the front left side of the distribution box. A fixed shaft is fixedly connected to the adjacent side of the two support blocks. A hinge is sleeved on the outside of the fixed shaft. A box door is fixedly connected to the front side of the hinge. A transmission component is provided inside the box door. The anti-reset component is used to lock the opening angle of the box door.

[0008] Preferably, the anti-reset assembly includes two support blocks 2. The front side of the support blocks 2 is fixedly connected to the inside of the door. A rotating shaft is rotatably connected to the adjacent side of the two support blocks 2. A pawl is fixedly connected to the outside of the rotating shaft. A reset spring is fixedly connected to the front side of the pawl. A ratchet is fixedly connected to the outside of the fixed shaft.

[0009] Preferably, the transmission assembly includes a rotating shaft, the outside of which is rotatably connected to the inside of the door, a driving bevel gear fixedly connected to the rear side of the rotating shaft, a driven bevel gear fixedly connected to the outside of the rotating shaft, a rotating handwheel fixedly connected to the outside of the rotating shaft, the outside of the driving bevel gear and the outside of the driven bevel gear being meshed, and the outside of the pawl engaging with the outside of the ratchet.

[0010] Preferably, the dust removal assembly includes a fan, which is externally and fixedly connected to the inside of the distribution box. A connecting shaft is fixedly connected to the inside of the fan, and a connecting column is fixedly connected to the outside of the connecting shaft. Movable plates are hinged to both ends of the connecting column. Guide rails are fixedly connected to the left and right sides of the distribution box. Two guide blocks are installed on the inner wall of the guide rails. Two square connecting plates are installed on the outside of the guide blocks. Square openings and square guide grooves are opened inside the square connecting plates. A brush is fixedly connected to one side of the square connecting plates. Dust covers are installed on the left and right sides of the distribution box.

[0011] Preferably, the busbar assembly includes a copper base, with the opposite sides of multiple copper bases fixedly connected to the inner walls of the upper and lower sides of the distribution box. Multiple miniature springs are installed inside the copper base, and phosphor bronze spring pieces are installed on the top of two of the miniature springs. A V-shaped protrusion is fixedly connected to the rear side of the phosphor bronze spring pieces.

[0012] Preferably, the adjustment assembly includes square columns, with the far sides of the two square columns installed on the inner walls of the left and right sides of the distribution box. An adjustment rod is rotatably connected inside the square column, and eccentric wheels are fixedly connected to the front and rear sides of the adjustment rod. A rotating handwheel is installed on the front side of the eccentric wheel, and a limit sleeve is threadedly connected to the outside of the eccentric wheel. A sliding adjustment plate is slidably connected inside the square column, and an aluminum alloy guide rail is installed on the near side of the two sliding adjustment plates.

[0013] Preferably, the locking assembly includes a square frame, the outside of which is detachably connected to one side of the two aluminum alloy guide rails. Electrical components are installed inside the square frame. A release button is slidably connected inside the square frame. A sliding plate is installed behind the release button. Multiple telescopic springs are fixedly connected to the rear of the sliding plate. A T-shaped groove is formed inside the sliding plate. A T-shaped slider is slidably connected inside the T-shaped groove. Rotating columns are rotatably connected to the left and right sides inside the square frame. Claws are fixedly connected to the outside of the rotating columns.

[0014] Preferably, the outer side of the movable plate is slidably connected to the inner wall of the square guide groove, and the outer side of the connecting column is in contact with the inner wall of the square opening.

[0015] Preferably, one side of the brush contacts the inner wall of the dust cover, the opposite sides of the two connecting shafts are rotatably connected to the inner walls of the two dust covers, the front side of the return spring is fixedly connected to the rear side of the box door, and the rear side of the hinge is fixedly connected to the front left side of the distribution box.

[0016] Preferably, the outer side of the eccentric wheel is in contact with the outer side of the sliding adjustment plate, the outer side of the aluminum alloy guide rail is slidably connected to the inside of the square column, the rear side of the limiting sleeve is in contact with the front side of the square column, the outer sides of the two sliding plates are slidably connected to the left and right sides inside the square frame, and the rear side of the pawl is hinged to the front side of the T-shaped slider.

[0017] In summary, the present invention has at least one of the following beneficial technical effects:

[0018] 1. This invention features a door that rotates around itself when opened. During this rotation, a pawl moves, and under the elastic force of a return spring, the pawl remains engaged with the ratchet, thus locking the door's opening angle. This allows the door to be firmly secured in scenarios such as mine vibrations and construction site collisions, completely avoiding risks such as hand pinching and short circuits caused by accidental closure. It provides a strong safety barrier for live-line work. In terms of operation, no one needs to hold the door; a single person can complete wiring, testing, and other operations, improving work efficiency. In terms of adaptability, it is compatible with different installation environments, whether in a narrow electrical room or an open outdoor area. The operating field of vision can be optimized by adjusting the angle, adapting to various maintenance needs.

[0019] 2. After the invention is started by the fan, the fan drives the connecting shaft to rotate. During operation, the connecting shaft drives the connecting column to rotate, and the movable plates hinged at both ends of the connecting column move accordingly. The movable plates slide in the square guide groove of the square connecting plate. At the same time, the connecting column cooperates with the square opening for guidance, driving the square connecting plate to move back and forth along the guide rail through the guide block. The brush on one side of the square connecting plate is in close contact with the inner wall of the dust cover, thereby preventing the accumulation of dust and impurities in the box, avoiding the problem of reduced insulation performance caused by dust, and also avoiding faults such as tripping and burnout caused by overheating, thus extending the service life of the components.

[0020] 3. This invention rotates the second handwheel to drive the adjusting rod and the external eccentric wheel to rotate. The eccentric wheel, through contact with the sliding adjusting plate, pushes it to slide along the square column, thereby driving the aluminum alloy guide rail to adjust its lateral position. The spacing adjustment function allows the distribution box to be compatible with electrical components of different specifications, eliminating the need to replace the box due to changes in component models, reducing equipment procurement costs. At the same time, the spacing adjustment can optimize the component layout, avoid mutual interference of large components, reserve sufficient operating space for copper busbar connection and cable wiring, reduce the risk of wire crossing and entanglement, and, together with the anti-loosening characteristics of the fixed clamping device, ensure the stability of component and line connection under vibration environment, reducing the incidence of short circuit and open circuit faults. Attached Figure Description

[0021] Figure 1 This is a perspective view of the present invention;

[0022] Figure 2 This is a schematic diagram of the limiting component of the present invention;

[0023] Figure 3 for Figure 2 Enlarged view of point A in the image;

[0024] Figure 4 This is a schematic diagram of the adjustment component of the present invention;

[0025] Figure 5 for Figure 4 Enlarged view of point B in the image;

[0026] Figure 6 for Figure 4 Enlarged view of point C in the image;

[0027] Figure 7 This is a schematic diagram of the aluminum alloy guide rail structure of the present invention;

[0028] Figure 8 This is a schematic diagram of the locking component of the present invention.

[0029] The components include: 1. Distribution box; 2. Limiting assembly; 21. Support block one; 22. Fixed shaft; 23. Ratchet; 24. Hinge; 25. Box door; 26. Support block two; 27. Rotating shaft; 28. Pawl; 29. ​​Return spring; 210. Transmission assembly; 211. Driven bevel gear; 212. Driving bevel gear; 213. Rotating shaft; 214. Rotating handwheel one; 215. Anti-reset assembly; 3. Dust removal assembly; 31. Fan; 32. Connecting shaft; 33. Connecting column; 34. Moving plate; 35. Guide rail; 36. Guide block; 37. Square connecting plate; 38. Square opening. 39. Square guide groove; 310. Brush; 311. Dust cover; 4. Conductive busbar assembly; 41. Copper base; 42. Miniature spring; 43. Phosphor bronze spring; 44. V-shaped protrusion; 5. Adjustment assembly; 51. Square column; 52. Adjustment rod; 53. Eccentric wheel; 54. Rotary handwheel II; 55. Limit sleeve; 56. Sliding adjustment plate; 57. Aluminum alloy guide rail; 6. Locking assembly; 61. Square frame; 62. Electrical component; 63. Release button; 64. Sliding plate; 65. Telescopic spring; 66. T-shaped slide groove; 67. T-shaped slider; 68. Rotating column; 69. Claw. Detailed Implementation

[0030] The following is in conjunction with the appendix Figure 1 To be continued Figure 8 The present invention will be further described in detail below.

[0031] Please see the appendix Figure 1 Appendix Figure 4 and attached Figure 6 This invention provides a comprehensive power distribution box with a fixed clamping protection device, including a power distribution box body 1. A limit component 2 is installed on the front left side of the power distribution box body 1. Dust removal components 3 are installed on both the left and right sides inside the power distribution box body 1. Two conductive busbar components 4 are installed on both the upper and lower sides inside the power distribution box body 1. Adjustment components 5 are installed on both the left and right sides of the inner wall of the power distribution box body 1. A locking component 6 is provided on the side of the two adjustment components 5 that is close to each other.

[0032] Please see the appendix Figure 2 and attached Figure 3The limiting component 2 includes two support blocks 21 and an anti-reset component 215. The anti-reset component 215 is used to prevent the distribution box door from closing accidentally in bad weather. The anti-reset component 215 is used to lock the opening angle of the box door 25, eliminating the risk of the box door 25 closing violently due to wind and injuring maintenance personnel. This greatly improves the safety and convenience of outdoor operations. The rear side of the two support blocks 21 is fixedly connected to the front left side of the distribution box 1. The two support blocks 21 are fixedly connected to a fixed shaft 22 on the adjacent side. The fixed shaft 22 can support the entire weight of the box door 25 and guide it to rotate smoothly along a predetermined trajectory. At the same time, it provides a stable installation position for the ratchet 23 to ensure the accurate realization of the limiting function. The fixed shaft 22 is fitted with a hinge 24. The hinge 24 ensures that the box door 25 opens smoothly without jamming. At the same time, it can ensure that the box door 25 fits tightly with the edge of the box when closed. The front side of the hinge 24 is fixedly connected to the box door 25. The transmission component 210 is installed inside the box door 25.

[0033] The transmission assembly 210 achieves precise control of the position of the pawl 28, thereby facilitating the unlocking of the door 25 from its limit state. The anti-reset assembly 215 includes two support blocks 26, which are fixed inside the door 25 to ensure that the position of the mechanism remains unchanged when the pawl 28 engages or disengages with the ratchet 23, preventing locking failure or transmission jamming due to force deviation. The front side of the support blocks 26 is fixedly connected to the inside of the door 25. A rotating shaft 27 is rotatably connected to the adjacent side of the two support blocks 26. The rotating shaft 27 rotates flexibly between the support blocks 26, directly acting on the pawl 28 with the rotational torque transmitted from the driven bevel gear 211, causing the pawl 28 to complete the lifting or lowering action. The pawl 28 is fixedly connected to the outside of the rotating shaft 27. The pawl 28 uses its special tooth structure at its end to unidirectionally engage with the ratchet under the action of spring force. A rigid stop is formed in the tooth groove of the wheel 23 to restrict the closing direction movement of the box door 25. A return spring 29 is fixedly connected to the front side of the pawl 28. The return spring 29 continuously provides the pawl 28 with a pressing force in the direction of the ratchet 23, ensuring that the pawl 28 always remains engaged when no unlocking operation is performed, and preventing the locking mechanism from failing even in a vibration environment. The external fixed connection of the fixed shaft 22 is the ratchet 23. The ratchet 23 is rigidly connected to the fixed shaft 22. The tooth design on its surface allows the pawl 28 to slide in the opening direction and lock in the closing direction. With the help of the pawl 28, the automatic positioning function of the box door 25 after opening at any angle is realized. The transmission component 210 includes a rotating shaft 213, which runs through the inside and outside of the box door 25. As a direct component for the operator to input control commands, it can smoothly transmit the rotation of the rotating handwheel 214 to the driving bevel gear 212.

[0034] The external rotating shaft 213 is rotatably connected to the inside of the door 25. A driving bevel gear 212 is fixedly connected to the rear side of the rotating shaft 213. The driving bevel gear 212 is fixed to the end of the rotating shaft 213. Through vertical meshing with the driven bevel gear 211, the horizontal rotational motion is converted into vertical driving force, realizing a 90-degree change in the operating direction and optimizing the internal space layout. The external rotating shaft 27 is fixedly connected to the driven bevel gear 211. The driven bevel gear 211 receives power from the driving bevel gear 212 and drives the rotating shaft 27 to rotate synchronously. The precise tooth surface machining ensures the smoothness and efficiency of the transmission, ensuring that the operator only needs to apply a small force to overcome the spring resistance and lift the pawl 28. The rotating shaft 213 is fixedly connected to the outside of the rotating handwheel 214, which is installed on the outside of the box door 25. The outside of the driving bevel gear 212 is meshed with the outside of the driven bevel gear 211. The outside of the pawl 28 is engaged with the outside of the ratchet 23. The front side of the return spring 29 is fixedly connected to the rear side of the box door 25, and the rear side of the hinge 24 is fixedly connected to the front left side of the distribution box 1.

[0035] Specifically, this device utilizes the one-way anti-reverse engagement between the ratchet 23 on the fixed shaft 22 and the pawl 28 on the rotating shaft 27, as well as the reversing drive of the bevel gear set in the transmission assembly 210, to realize the automatic windproof safety limit and convenient manual unlocking functions of the distribution box door 25. When the door 25 is opened, the return spring 29 continuously presses the pawl 28 to engage with the ratchet 23, establishing a rigid interlocking structure to resist wind force and prevent the door 25 from accidentally rebounding and injuring maintenance personnel. When it is necessary to close, the rotating handwheel 214 is rotated to drive the active bevel gear 212 to mesh with the driven bevel gear 211, driving the rotating shaft 27 to rotate and lift the pawl 28 to disengage it from the ratchet 23. Thus, the locking state is easily released without direct contact with the internal mechanical structure, significantly improving the safety and operational efficiency of the distribution box 1 during outdoor operations.

[0036] Please see the appendix Figure 1 Appendix Figure 2 and attached Figure 5The dust removal component 3 includes a fan 31, which serves as the power source for the dust removal component 3. When powered on, the fan operates at high speed, generating a strong airflow. This airflow not only removes the heat accumulated inside the distribution box 1, reducing the operating temperature of the components, but also provides external fixed connection to the fan 31 within the distribution box 1. A connecting shaft 32 is fixedly connected internally to the fan 31, and a connecting column 33 is fixedly connected externally to the connecting shaft 32. The connecting column 33 drives a moving plate 34 through rotational motion. Its length and installation angle determine the travel distance of the brush 310, ensuring that the cleaning range covers the ventilation area of ​​the dust cover 311. Moving plates are hinged at both ends of the connecting column 33. Plate 34, the movable plate 34 slides back and forth in the square guide groove 39, serving as the transmission medium between the connecting column 33 and the square connecting plate 37. It can smoothly push the square connecting plate 37 to move along the guide rail 35, reducing the frictional resistance in mechanical transmission. The left and right sides of the distribution box 1 are fixedly connected with guide rails 35. The guide rails 35 are firmly installed on the side wall of the distribution box 1, providing a precise guide reference for the up and down movement of the cleaning component, restricting the freedom of the moving parts, preventing the cleaning component from shaking or derailing during operation, and ensuring the straightness of the running trajectory. Two guide blocks 36 are installed on the inner wall of the guide rail 35.

[0037] Two square connecting plates 37 are mounted on the outside of the guide block 36. These square connecting plates 37 serve as the main load-bearing structure, transmitting power from the drive mechanism to the brush 310, ensuring synchronization between the cleaning action and the operation of the fan 31. Square openings 38 and square guide grooves 39 are provided inside the square connecting plates 37. These guide grooves restrict the moving plate 34 to slide only horizontally, eliminating the horizontal component force generated when the connecting column 33 rotates. This ensures that the square connecting plate 37 is only subjected to vertical driving force, guaranteeing the singularity and stability of the cleaning action. A brush 310 is fixedly connected to one side of the square connecting plate 37, with the bristles of the brush 310 in close contact with the inner surface of the dust cover 311. The surface is physically scraped away during reciprocating motion to remove dust and lint adhering to the ventilation holes, preventing the mesh from clogging and affecting heat dissipation efficiency, and keeping the air intake channel unobstructed. Dust covers 311 are installed on both the left and right sides of the distribution box 1. The dust covers 311 cover the heat dissipation ventilation openings. Their dense mesh structure can effectively block large particles of dust, insects and debris from entering the distribution box 1 while allowing air to circulate. The outside of the moving plate 34 is slidably connected to the inner wall of the square guide groove 39. The outside of the connecting column 33 is in contact with the inner wall of the square opening 38. One side of the brush 310 is in contact with the inner wall of the dust cover 311. The far sides of the two connecting shafts 32 are rotatably connected to the inner walls of the two dust covers 311.

[0038] Specifically, this device utilizes the rotational power generated by the operation of the fan 31, and through the combined transmission of the connecting shaft 32, connecting column 33 and moving plate 34 in the square guide groove 39 and square opening 38, the rotational motion is converted into the vertical reciprocating linear motion of the square connecting plate 37 along the guide slide rail 35, realizing the integrated operation of heat dissipation and dust removal. While the fan 31 circulates airflow to reduce the temperature of the distribution box 1, it drives the brush 310 to automatically scrape the inner wall of the dust cover 311, effectively eliminating the hidden danger of dust clogging the ventilation opening, and ensuring the heat dissipation efficiency and operational stability of the distribution box in a high dust environment.

[0039] Please see the appendix Figure 6 The conductive busbar assembly 4 includes a copper base 41. The opposite sides of multiple copper bases 41 are fixedly connected to the upper and lower inner walls of the distribution box 1. Multiple miniature springs 42 are installed inside the copper base 41. The miniature springs 42 installed inside the copper base 41 can continuously provide constant vertical pressure. Even when the material undergoes slight deformation due to long-term use or temperature changes, they can compensate for gaps and ensure that the conductive contacts always maintain sufficient contact pressure. Phosphor bronze springs 43 are installed on the top of two miniature springs 42. The phosphor bronze springs 43 can generate elastic deformation when the wire is inserted to adapt to different wire diameters and prevent poor contact caused by frequent insertion and removal. A V-shaped protrusion 44 is fixedly connected to the rear side of the phosphor bronze spring 43. The V-shaped protrusion 44 increases the contact pressure with the surface of the wire through its shape, preventing the wire from easily falling off when subjected to external tension.

[0040] Specifically, through the continuous elastic compensation provided by the miniature spring 42 and the adaptive deformation capability of the phosphor bronze spring 43, combined with the embedded mechanical engagement of the V-shaped ridge 44 on the surface of the conductor, the automatic tensioning and anti-loosening function of the electrical connection is realized. It can flexibly adapt to conductors of different diameters to ensure contact area, and effectively resist external tension to prevent poor contact, thereby ensuring the stability and safety of high current transmission at the copper base 41.

[0041] Please see the appendix Figure 7The adjusting assembly 5 includes two square columns 51. The opposite sides of the two square columns 51 are mounted on the inner walls of the left and right sides of the distribution box 1. An adjusting rod 52 is rotatably connected inside each square column 51, passing through the interior of the column and transmitting rotational torque to drive the eccentric wheel 53 to rotate. Eccentric wheels 53 are fixedly connected to the front and rear sides of the adjusting rod 52. The eccentric wheels 53 convert rotational motion into radial thrust, which moves the guide rail by changing the position of the contact point with the sliding adjusting plate 56. A rotating handwheel 54 is mounted on the front side of the eccentric wheel 53. A limiting sleeve 55 is threadedly connected to the outside of the eccentric wheel 53. The limiting sleeve 55 generates axial friction through thread tightening. The eccentric wheel 53 and the adjusting rod 52 are pressed and fixed on the square column 51 to prevent the adjusting rod 52 from rotating during equipment operation vibration, ensuring that the set installation position remains unchanged for a long time. The sliding adjusting plate 56 is slidably connected inside the square column 51. The sliding adjusting plate 56 slides inside the square column 51 under the push of the eccentric wheel 53, and directly drives the aluminum alloy guide rail 57 to move as the force transmitter. The aluminum alloy guide rail 57 is installed on the adjacent side of the two sliding adjusting plates 56. The outside of the eccentric wheel 53 is in contact with the outside of the sliding adjusting plate 56. The outside of the aluminum alloy guide rail 57 is slidably connected inside the square column 51. The rear side of the limiting sleeve 55 is in contact with the front side of the square column 51.

[0042] Specifically, by rotating the handwheel 54 to drive the adjusting rod 52 and the eccentric wheel 53 to rotate, the rotational motion is converted into a radial force that pushes the sliding adjusting plate 56 to translate within the square column 51 using the cam principle. This achieves the stepless fine-tuning function of the installation depth of the aluminum alloy guide rail 57. Combined with the threaded locking mechanism of the limit sleeve 55, it can flexibly adapt to the installation requirements of electrical components 62 of different sizes and specifications, and ensure that the adjusted position remains stable during equipment vibration. This significantly improves the flexibility of the internal space utilization and the assembly accuracy of the distribution box 1.

[0043] Please see the appendix Figure 8The locking assembly 6 includes a square frame 61, which is detachably connected to the exterior of two aluminum alloy guide rails 57 on adjacent sides. An electrical component 62 is installed inside the square frame 61. A release button 63 is slidably connected inside the square frame 61. A sliding plate 64 is installed behind the release button 63. The sliding plate 64 transmits the linear thrust of the release button 63 to the T-shaped slider 67 and is responsible for resetting under the action of a spring. Multiple telescopic springs 65 are fixedly connected to the rear of the sliding plate 64. The telescopic springs 65 are in a pre-compressed state, always providing a reset thrust to the sliding plate 64, ensuring that the pawl 69 is always in an open locking state when the button is not pressed, preventing the square frame 61 from falling off the guide rail due to accidental vibration. A T-shaped groove 66 is formed inside the sliding plate 64. Inside 64, a T-shaped slider 67 is slidably connected to the T-shaped groove 66. The sliding of the T-shaped slider 67 in the groove directly drives the tail of the pawl 69, converting the linear displacement of the sliding plate 64 into the torsional torque of the rotating column 68, and precisely controlling the opening and closing angle of the pawl 69. The left and right sides of the inside of the square frame 61 are rotatably connected to the rotating column 68, which supports the pawl 69 and allows it to rotate around a fixed axis, ensuring that the movement trajectory of the pawl 69 is fixed and can accurately engage or disengage from the slot of the aluminum alloy guide rail 57, maintaining the structural strength of the locking mechanism. The pawl 69 is fixedly connected to the outside of the rotating column 68, and the pawl 69 serves as the final execution latch. The two sliding plates 64 are slidably connected to the outside of the left and right sides of the inside of the square frame 61, and the rear side of the pawl 69 is hinged to the front side of the T-shaped slider 67.

[0044] Specifically, the locking component 6 utilizes the linear drive of the release button 63 and the sliding plate 64, and through the linkage guidance of the T-shaped slide groove 66 and the T-shaped slider 67, the thrust is converted into the torsional torque of the rotating column 68, realizing the quick locking and releasing function of the claw 69 on the aluminum alloy guide rail 57. Combined with the automatic reset and pre-tightening of the telescopic spring 65, it greatly simplifies the replacement and maintenance process of the modular components inside the distribution box.

[0045] Working principle: When the door 25 is opened, the door 25 rotates around the fixed shaft 22. During the rotation, the pawl 28 moves. Under the elastic force of the return spring 29, the pawl 28 remains engaged with the ratchet 23, thereby locking the opening angle of the door 25 and preventing the door 25 from closing arbitrarily during maintenance. When it is necessary to adjust or close the door 25, it is controlled by the transmission component 210. Rotating the rotating handwheel 214 drives the rotating shaft 213 to rotate. The driving bevel gear 212 on the rear side of the rotating shaft 213 drives the meshing driven bevel gear 211 to rotate, thereby causing the rotating shaft 27 to drive the pawl 28 to disengage from the ratchet 23. After the limit is released, the state of the door 25 can be freely adjusted.

[0046] To ensure a clean operating environment for the components inside the distribution box 1, after the fan 31 is started, the fan 31 drives the connecting shaft 32 to rotate. During operation, the connecting shaft 32 drives the connecting column 33 to rotate, and the movable plate 34 hinged at both ends of the connecting column 33 moves accordingly. The movable plate 34 slides in the square guide groove 39 of the square connecting plate 37. At the same time, the connecting column 33 cooperates with the square opening 38 for guidance, driving the square connecting plate 37 to move back and forth along the guide rail 35 through the guide block 36. The brush 310 on one side of the square connecting plate 37 is in close contact with the inner wall of the dust cover 311, and the dust cover 311 is cleaned in the reciprocating motion to prevent dust from clogging the ventilation opening. The airflow circulation of the fan 31 realizes heat dissipation inside the distribution box 1.

[0047] The conductive busbar assembly 4 provides a stable conductive connection inside the distribution box 1. When the wire is inserted into the through hole inside the copper base 41, the wire will squeeze the phosphor bronze spring 43. The phosphor bronze spring 43 compresses the miniature spring 42. The miniature spring 42 inside provides continuous elastic force to the phosphor bronze spring 43, keeping the phosphor bronze spring 43 pressed against the inserted conductive component. The V-shaped protrusion 44 on the rear side of the phosphor bronze spring 43 enhances the tightness of contact with the conductive component, improves the elastic clamping effect, and prevents the conductive component from loosening.

[0048] In the adjustment assembly 5, rotating the second handwheel 54 drives the adjustment rod 52 and the external eccentric wheel 53 to rotate. The eccentric wheel 53 pushes the sliding adjustment plate 56 to slide along the square column 51 through contact, thereby driving the aluminum alloy guide rail 57 to adjust the lateral position to adapt to the installation requirements of electrical components 62 of different specifications. After the position is determined, the position of the adjustment rod 52 is locked by the threaded connection between the limit sleeve 55 and the eccentric wheel 53, fixing the adjustment rod 52 to prevent it from rotating.

[0049] In the locking assembly 6, the electrical component 62 is installed inside the square frame 61. In its natural state, the telescopic spring 65 pushes the sliding plate 64 forward. The sliding plate 64 drives the rotating column 68 to rotate through the cooperation of the T-shaped groove 66 and the T-shaped slider 67, causing the claw 69 to open outward and engage with the positioning structure of the aluminum alloy guide rail 57, thereby locking the square frame 61. When disassembly is required, press the release button 63 to push the sliding plate 64 backward, compress the telescopic spring 65, and drive the rotating column 68 to rotate in the opposite direction, causing the claw 69 to retract. Once the lock is released, the square frame 61 and the internal electrical component 62 can be removed.

Claims

1. A comprehensive distribution box with a fixed clamping protection device, comprising a distribution box body (1), characterized in that, A limit component (2) is installed on the front left side of the power distribution box (1). Dust removal components (3) are installed on both the left and right sides inside the power distribution box (1). Two conductive busbar components (4) are installed on both the upper and lower sides inside the power distribution box (1). Adjustment components (5) are installed on both the left and right sides of the inner wall of the power distribution box (1). A locking component (6) is provided on the side of the two adjustment components (5) that are close to each other. The limiting component (2) includes two support blocks (21) and an anti-reset component (215). The rear sides of the two support blocks (21) are fixedly connected to the front left side of the distribution box (1). A fixed shaft (22) is fixedly connected to the adjacent side of the two support blocks (21). A hinge (24) is sleeved on the outside of the fixed shaft (22). A box door (25) is fixedly connected to the front side of the hinge (24). A transmission component (210) is provided inside the box door (25). The anti-reset component (215) is used to lock the opening angle of the box door (25).

2. A comprehensive distribution box with a fixing clamping protection device according to claim 1, characterized in that, The anti-reset assembly (215) includes two support blocks (26). The front side of the support blocks (26) is fixedly connected to the inside of the door (25). A rotating shaft (27) is rotatably connected to the adjacent side of the two support blocks (26). A pawl (28) is fixedly connected to the outside of the rotating shaft (27). A reset spring (29) is fixedly connected to the front side of the pawl (28). A ratchet (23) is fixedly connected to the outside of the fixed shaft (22).

3. A comprehensive distribution box with a fixing clamping protection device according to claim 2, characterized in that, The transmission assembly (210) includes a rotating shaft (213), which is rotatably connected to the inside of the door (25). A driving bevel gear (212) is fixedly connected to the rear side of the rotating shaft (213). A driven bevel gear (211) is fixedly connected to the outside of the rotating shaft (27). A rotating handwheel (214) is fixedly connected to the outside of the rotating shaft (213). The outside of the driving bevel gear (212) and the outside of the driven bevel gear (211) are meshed. The outside of the pawl (28) is engaged with the outside of the ratchet (23).

4. A comprehensive distribution box with a fixing clamping protection device according to claim 2, characterized in that, The dust removal assembly (3) includes a fan (31), which is externally fixedly connected to the inside of the distribution box (1). A connecting shaft (32) is fixedly connected inside the fan (31), and a connecting column (33) is fixedly connected to the outside of the connecting shaft (32). A movable plate (34) is hinged to both ends of the connecting column (33). Guide rails (35) are fixedly connected to both sides of the distribution box (1). Two guide blocks (36) are installed on the inner wall of the guide rails (35). Two square connecting plates (37) are installed on the outside of the guide blocks (36). A square opening (38) is opened inside the square connecting plate (37). A square guide groove (39) is opened inside the square connecting plate (37). A brush (310) is fixedly connected to one side of the square connecting plate (37). Dust covers (311) are installed on both sides of the distribution box (1).

5. A comprehensive distribution box with a fixing clamping protection device according to claim 1, characterized in that, The conductive bus assembly (4) includes a copper base (41), and the opposite sides of the multiple copper bases (41) are fixedly connected to the upper and lower inner walls of the distribution box (1). Multiple miniature springs (42) are installed inside the copper bases (41), and phosphor bronze spring pieces (43) are installed on the top of two of the miniature springs (42). A V-shaped protrusion (44) is fixedly connected to the rear side of the phosphor bronze spring pieces (43).

6. A comprehensive distribution box with a fixing clamping protection device according to claim 1, characterized in that, The adjustment assembly (5) includes a square column (51). The two square columns (51) are mounted on the inner walls of the left and right sides of the distribution box (1) on opposite sides. An adjustment rod (52) is rotatably connected inside the square column (51). An eccentric wheel (53) is fixedly connected to the front and rear sides of the adjustment rod (52). A rotating handwheel (54) is installed on the front side of the eccentric wheel (53). A limit sleeve (55) is threadedly connected to the outside of the eccentric wheel (53). A sliding adjustment plate (56) is slidably connected inside the square column (51). An aluminum alloy guide rail (57) is installed on the adjacent side of the two sliding adjustment plates (56).

7. A comprehensive distribution box with a fixing clamping protection device according to claim 6, characterized in that, The locking assembly (6) includes a square frame (61), the outside of which is detachably connected to the two aluminum alloy guide rails (57) on the same side. An electrical component (62) is installed inside the square frame (61). A release button (63) is slidably connected inside the square frame (61). A sliding plate (64) is installed on the rear side of the release button (63). A plurality of telescopic springs (65) are fixedly connected to the rear side of the sliding plate (64). A T-shaped groove (66) is opened inside the sliding plate (64). A T-shaped slider (67) is slidably connected inside the T-shaped groove (66). Rotating columns (68) are rotatably connected to the left and right sides inside the square frame (61). A claw (69) is fixedly connected to the outside of the rotating column (68).

8. A comprehensive distribution box with a fixing clamping protection device according to claim 4, characterized in that, The outer side of the movable plate (34) is slidably connected to the inner wall of the square guide groove (39), and the outer side of the connecting column (33) is in contact with the inner wall of the square opening (38).

9. A comprehensive distribution box with a fixing clamping protection device according to claim 4, characterized in that, One side of the brush (310) is in contact with the inner wall of the dust cover (311), the two connecting shafts (32) are rotatably connected to the inner walls of the two dust covers (311) on opposite sides, the front side of the return spring (29) is fixedly connected to the rear side of the box door (25), and the rear side of the hinge (24) is fixedly connected to the front left side of the distribution box (1).

10. A comprehensive distribution box with a fixing clamping protection device according to claim 7, characterized in that, The outer side of the eccentric wheel (53) is in contact with the outer side of the sliding adjustment plate (56), the outer side of the aluminum alloy guide rail (57) is slidably connected to the inner side of the square column (51), the rear side of the limiting sleeve (55) is in contact with the front side of the square column (51), the outer sides of the two sliding plates (64) are slidably connected to the left and right sides of the inner side of the square frame (61), and the rear side of the claw (69) is hinged to the front side of the T-shaped slider (67).

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