Three-dimensional layered modular distribution box with quick assembly structure

Abstract

The invention discloses a three-dimensional layered modular distribution box with a quick assembly structure, and belongs to the technical field of distribution boxes, and the three-dimensional layered modular distribution box with the quick assembly structure comprises an inner container assembly, an assembly frame is installed outside the inner container assembly, and a shell assembly is installed outside the assembly frame. An isolation cabinet door is installed at the end, close to an opening of the inner container assembly, of the splicing frame, a rapid installation assembly is installed at the end, away from the isolation cabinet door, of the inner container assembly, and an element installation frame is fixedly connected to the inner side of the inner container assembly. According to the invention, through a three-layer complete modular structure of the inner container, the frame and the shell, prefabrication in a factory is realized, box body final assembly can be completed only through one-time insertion and one-time pressing on site, the average assembly time is greatly shortened compared with the traditional time, and rapid and modular whole flow and tool minimization of the distribution box from wall body installation, box body structure assembly to internal element adjustment are realized; and the installation efficiency and the flexibility are obviously improved.

Description

Technical Field

[0001] This invention belongs to the field of distribution box technology, specifically relating to a three-dimensional layered modular distribution box with a rapid assembly structure. Background Technology

[0002] Distribution boxes are the core control and distribution units of modern building electrical systems, and their technological development closely follows the evolution of electrical energy applications and safety requirements. From the initial simple knife switches and fuses to the later widely used air circuit breakers, their core technologies have always revolved around the two core functions of overload protection and short-circuit protection, aiming to automatically disconnect faulty circuits and prevent electrical fires and equipment damage.

[0003] With the rapid development of prefabricated buildings, data centers, and new energy microgrids, traditional welded or bolted integrated distribution boxes have revealed their limitations. Long on-site installation cycles are a significant drawback. Cabinets, mounting plates, and incoming / outgoing line units must be assembled, drilled, and tapped individually on-site, resulting in long average installation times and significant dependence on construction skill. Furthermore, the single-cavity structure leads to mixed distribution of strong and weak current lines, incoming / outgoing lines, and component areas, resulting in poor heat dissipation. Especially with future expansion requiring replacement of the entire box, redundant investment is inevitable. Additionally, component maintenance necessitates the removal of the entire mounting plate or sidewall, leading to widespread power outages and failing to meet the maintenance requirements of single-circuit maintenance while ensuring uninterrupted power supply to other circuits. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a three-dimensional layered modular distribution box with a rapid assembly structure.

[0005] The technical solution adopted to solve the above technical problems is: a three-dimensional layered modular distribution box with a quick assembly structure, including an inner liner assembly, an assembly frame installed on the outside of the inner liner assembly, outer shell assemblies installed on the left and right sides and the top and bottom ends of the assembly frame, an isolation cabinet door installed on the end of the assembly frame near the opening of the inner liner assembly, a quick installation assembly installed on the end of the inner liner assembly away from the isolation cabinet door, a component mounting bracket fixedly connected to the inside of the inner liner assembly, a support frame fixedly connected to the side of the component mounting bracket away from the inner liner assembly, and two decorative panels installed on the surface of the support frame away from the component mounting bracket.

[0006] Furthermore, the inner liner assembly includes an inner liner main board, with an inner liner outer shell fixedly connected to each of the four sides of the inner liner main board, and a back outer shell fixedly connected to one end of the inner liner main board.

[0007] Through the above technical solution, the inner liner assembly is integrated into a semi-enclosed, expandable load-bearing frame: the inner liner main board and the four sides of the inner liner outer shell are stamped and riveted into a basin-shaped structure in one go, ensuring both the geometric accuracy in the depth direction of the cavity and forming a continuous grounding conductor; the rear outer shell is fastened to the inner liner main board without tools via quick-locking fasteners, forming a complete hexahedron. This structure allows for modular installation of guide rails, busbars, and prefabricated cables before leaving the factory. On-site, the entire inner liner can be simply pushed into the assembly frame for positioning, requiring no additional fasteners, significantly shortening the construction cycle and reducing the risk of human error.

[0008] Furthermore, the assembly frame includes several corner sleeves and several shaping rods. The two ends of the shaping rods are respectively slidably connected to different corner sleeves. The corner sleeves and shaping rods constitute a frame structure. The inner sides of the corner sleeves and shaping rods are respectively attached to the outer sides of the inner liner and outer shell.

[0009] Through the above technical solution, the inner side of the frame is reserved with positioning ribs, which fit precisely with the guide groove on the outer side of the inner shell, realizing blind insertion guidance and three-sided automatic centering of the inner shell components, and ensuring that the busbar socket is aligned with the corresponding socket.

[0010] Furthermore, several of the inner liner shells are jointly fixedly connected to the outside of the outer shell, and several second cable management holes are arranged in a matrix in the middle of the inner liner main board, while a first cable management hole is provided in the middle of the inner liner shell located at the bottom.

[0011] The above technical solution forms a multi-layer structure, ensuring the strength of the distribution box assembly. At the same time, the matrix arrangement of the second cable management holes and the first cable management holes forms a multi-dimensional cable routing network, allowing prefabricated cables to freely branch in three directions, realizing the layering and staggering of strong and weak currents, and reducing cross interference.

[0012] Furthermore, vent pipes are respectively provided at the top and bottom of the middle of the inner shell on both sides. Several turntables are rotatably connected through each vent pipe, and these turntables are arranged in a symmetrical vertical array. A square fan blade is fixedly connected between two turntables at the same height. A cylinder is fixedly connected to the side of each turntable away from the square fan blade. A pull frame is slidably connected to the outside of the vent pipe. First sliding grooves are provided on both sides of the pull frame, and these first sliding grooves engage with and slidably connect to the cylinder. Extension strips are fixedly connected to the ends of the pull frame that are close to each other. A linkage bar is rotatably connected to the end away from the pull frame. A U-shaped block is rotatably connected to the linkage bars on the same side. A limiting slide bar is fixedly connected to the middle of the end of the U-shaped block near the linkage bar. A limiting sleeve is slidably connected through the middle of the limiting slide bar. The limiting sleeve is fixedly connected to the inner shell. A trapezoidal spring is provided between the end of the limiting slide bar away from the U-shaped block and the limiting sleeve. A T-shaped block is rotatably connected to the end of the U-shaped block away from the limiting slide bar. The middle of the T-shaped block is rotatably connected to the back shell. The end of the T-shaped block away from the U-shaped block is attached to the quick-installation assembly.

[0013] Through the above technical solution, the symmetrically arranged turntables and square fan blades on both sides of the vent pipe constitute a multi-stage air valve. When the degree of contact between one end of the T-block and the quick-installation component changes, the other end of the T-block pulls the U-block to move. Since the U-block is connected to the pull frame through the linkage strip and extension strip, it drives the pull frame to form an up-and-down linear motion. Thus, the first slide groove drives the cylinder, causing the turntables in the upper and lower arrays to rotate synchronously. The fan blade angle switches from the natural convection position to the closed position. The opening and closing of the air duct can be completed with zero additional power, saving energy and reducing noise.

[0014] Furthermore, the inner liner motherboard has several mounting strips fixedly connected to the middle part of one end of the back shell, and the mounting strips have clips fixedly connected to their surfaces, which slidably engage with the quick-installation assembly.

[0015] Through the above technical solution, the junction area between the inner liner motherboard and the rear shell forms an integrated slide rail locking interface. The cross-section of the locking block is inverted T-shaped, which is matched with the T-slot of the wall panel of the quick-installation component. It automatically centers when inserted, meeting the electrical clearance requirements for hot-plugging, and eliminating the need for on-site calibration.

[0016] Furthermore, the outer shell assembly includes several external partitions, and square clips are fixedly connected to the four corners of one side surface of each of the external partitions. The square clips are slidably connected to the top corner sleeves. Two vents are provided at the top and bottom of the middle of the surface of the external partitions on both sides, and the vents correspond one-to-one with the vent pipes. A third cable management hole is provided at the middle of the bottom external partition.

[0017] Through the above technical solution, the square clips and the top corner sleeve adopt a through-sliding structure. The partition is positioned by inserting four clips at the same time. The vent and the inner liner vent pipe are coaxially connected to achieve seamless connection of the air duct. This maintains natural convection and prevents foreign objects from entering. The third cable management hole and the first and second cable management holes of the inner liner form a three-dimensional cable routing network, which supports the vertical entry and lateral branching of the prefabricated cables at the bottom, separates strong and weak currents, reduces electromagnetic interference, and is compatible with the rapid addition of subsequent expansion cables.

[0018] Furthermore, several of the top corner sleeves are threadedly connected to long screws, which are threadedly connected to the isolation cabinet door and the back shell, respectively. The threaded ends of the long screws are threadedly connected to the surface of the reinforcing ribs. The top corner sleeves are slidably connected to positioning inserts, which are slidably connected to the shaping rod and the square clip, respectively.

[0019] Through the above technical solution, multiple long screws pass through the isolation cabinet door and the back shell and engage with the reinforcing ribs. The three points in a line press the three major components of the assembly frame, inner liner and cabinet door into one. The positioning inserts pass horizontally through the top corner sleeve, the shaping rod and the square clip. Shear force replaces traditional welding and improves torsional strength.

[0020] Furthermore, the component mounting bracket includes a convex plate, the two sides of which are fixedly connected to the inner liner main board, and the two sides of the convex plate away from the inner liner main board are fixedly connected to a support frame. The support frame can be opened as needed. Positioning grooves are respectively provided on both sides of the middle of the convex plate, and toothed grooves are provided on both sides of the positioning grooves. A hollow sleeve is slidably connected to the inner side of the positioning groove. An electrical component clip is fixedly connected to one end of the hollow sleeve at the same height. A straight plate is slidably connected to the inner side of the hollow sleeve. A first spring is provided between the straight plate and the hollow sleeve. A toothed rack is provided on both sides of the straight plate. The toothed rack is slidably connected to the hollow sleeve and is slidably engaged with the toothed groove.

[0021] Through the above technical solution, the convex plate, the inner liner main board, and the support frame are rigidly connected at three points to form a three-dimensional T-beam structure. The positioning groove has built-in toothed grooves, and the electrical component clips slide at any height in the grooves through hollow sleeves. When the straight plate is pressed, the toothed strips disengage from the toothed grooves, and the clips can slide freely up and down to achieve stepless adjustment. This solves the pain point that traditional fixed hole spacing cannot be compatible with components from different brands. The support frame can be opened on-site to form free combination of long and short sides with the convex plate, and is compatible with horizontal busbars, vertical cable trays, and side-mounted accessories, achieving true three-dimensional layering, modularization, rapid assembly, and rapid maintenance.

[0022] Furthermore, the quick-installation assembly includes a wall-mounting panel that slides into contact with a T-shaped block. Mounting holes are fixedly connected to the four sides of the wall-mounting panel, and these mounting holes are fixedly connected to the wall via bolts. A mounting bracket is fixedly connected to both sides of the middle of the wall-mounting panel. Wide plates are rotatably connected to the upper and lower ends of the mounting brackets. A narrow plate is rotatably connected to the end of the wide plate away from the mounting bracket. A square frame is rotatably connected to the end of the narrow plate away from the wide plate. A sliding rod is rotatably connected to the middle of the end of the narrow plate near the circular sleeve. A circular sleeve is slidably connected to the end of the sliding rod away from the narrow plate. A second spring is provided between the inner side of the circular sleeve and the sliding rod. The end of the circular sleeve away from the sliding rod is rotatably connected to the mounting bracket. Several T-slots are provided on the surface of the square frame, and these T-slots slidably engage with the mounting block.

[0023] The above technical solution features mounting holes on all four sides of the wall panel, allowing for pre-positioning with the wall using expansion bolts. Subsequent installation of the enclosure eliminates the need for further measurement and drilling, thus removing the need for on-site secondary calibration. The sliding rod, circular sleeve, and second spring form a damping and reset mechanism, providing continuous clamping force to ensure a tight fit between the T-block and the wedge-shaped surface of the wall panel. The beneficial effects of this invention are as follows: 1. This invention utilizes a fully modular three-layer structure consisting of an inner liner, a frame, and an outer shell, enabling prefabrication in the factory. On-site assembly can be completed simply by inserting and pressing the casing, significantly reducing the average assembly time compared to traditional methods. Furthermore, it achieves tool-free rapid assembly, thereby significantly reducing construction costs and human error.

[0024] 2. This invention utilizes an integrated mechanism of ventilation pipe, fan blades, and T-shaped block to synchronously convert the fit between the inner liner assembly and the quick-installation assembly into the opening and closing of the air duct. When the airflow is strong, the fit between the inner liner assembly and the quick-installation assembly changes, causing the tail of the T-shaped block to rotate under pressure. This rotation is then driven by the U-shaped block, linkage bar, and extension bar to make the pull frame move in a straight line. The first sliding groove of the pull frame drives the cylinder, causing the array of fan blades on the ventilation pipe to synchronously close from the natural convection position to the sealed position. This completes the air duct switching with zero additional power, avoiding the bypassing of hot and cold air.

[0025] 3. This invention adopts a pre-installed wall panel + elastic arm and T-slot buckle design, which enables error-adaptive hanging and self-locking clamping between the box and the building base, completely eliminating secondary operations such as on-site measurement, drilling, and calibration. It provides a highly reliable, repeatable, and fully life-cycle maintainable power distribution solution for scenarios such as data centers and prefabricated buildings that require rapid deployment and frequent expansion. Attached Figure Description

[0026] Figure 1 This is a first schematic diagram of the overall structure of the present invention; Figure 2 This is a second schematic diagram of the overall structure of the present invention; Figure 3 This is a first schematic diagram of the inner liner assembly structure of the present invention; Figure 4 This is a second schematic diagram of the inner liner assembly structure of the present invention; Figure 5 This is a third schematic diagram of the inner liner assembly structure of the present invention; Figure 6 This is a schematic diagram of the structure of a single housing component of the present invention; Figure 7 This is a schematic diagram of the three-dimensional structure of the assembly frame of the present invention; Figure 8 yes Figure 7 Enlarged view of point A in the middle; Figure 9 This is a first schematic diagram of the three-dimensional structure of the component mounting bracket of the present invention; Figure 10 This is a second schematic diagram of the three-dimensional structure of the component mounting bracket of the present invention; Figure 11 yes Figure 10 Enlarged view of point B in the middle; Figure 12 This is a three-dimensional structural diagram of the quick-installation component of the present invention; Figure 13 This is a partial cross-sectional view of the interior of the quick-installation component of the present invention.

[0027] Reference numerals: 1. Inner liner assembly; 101. Inner liner main board; 102. Back cover; 103. Inner liner cover; 104. First cable management hole; 105. Second cable management hole; 106. Reinforcing rib; 107. Locking block; 108. Mounting strip; 109. Vent pipe; 110. Turntable; 111. Square fan blade; 112. Pull frame; 113. First slide groove; 114. Cylinder; 115. T-block; 116. U-block; 117. Linkage strip; 118. Extension strip; 119. Limiting sleeve; 120. Trapezoidal spring; 121. Limiting slide bar; 2. Isolation cabinet door; 3. Outer shell assembly; 301. External partition; 302. Vent outlet; 303. Third cable management 304. Hole; 4. Square clip; 4. Component mounting bracket; 401. Convex plate; 402. Positioning groove; 403. Electrical component clip; 404. Straight plate; 405. Gear groove; 406. Hollow sleeve; 407. First spring; 408. Rack; 5. Support frame; 6. Decorative panel; 7. Quick installation assembly; 701. Wall panel; 702. Mounting hole plate; 703. Clip seat; 704. T-slot; 705. Wide plate; 706. Round sleeve; 707. Thin plate; 708. Slide rod; 709. Second spring; 710. Square frame; 8. Assembly frame; 801. Top corner sleeve; 802. Shaping rod; 803. Long screw; 804. Positioning insert. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0029] like Figures 1 to 13 As shown, this embodiment of a three-dimensional layered modular distribution box with a rapid assembly structure includes an inner liner assembly 1, an assembly frame 8 installed on the outside of the inner liner assembly 1, outer shell assemblies 3 installed on the left and right sides and the top and bottom ends of the assembly frame 8, an isolation cabinet door 2 installed on the end of the assembly frame 8 near the opening of the inner liner assembly 1, a rapid installation assembly 7 installed on the end of the inner liner assembly 1 away from the isolation cabinet door 2, a component mounting bracket 4 fixedly connected to the inside of the inner liner assembly 1, a support frame 5 fixedly connected to the side of the component mounting bracket 4 away from the inner liner assembly 1, and two decorative panels 6 respectively installed on the surface of the support frame 5 away from the component mounting bracket 4. In the actual installation process, the inner liner assembly 1 and the assembly frame 8 are pre-assembled first. Through the one-time stamping and riveting process of the inner liner main board 101 and the back shell 102, and the cooperation of the positioning rib guide groove of the inner liner shell 103 and the assembly frame 8, high-precision blind insertion positioning is achieved. Subsequently, the square clip 304 of the outer casing assembly 3 is inserted into the top corner sleeve 801 to complete the rapid positioning of the outer partition 301. At this time, the vent 302 and the inner liner vent pipe 109 are automatically aligned to form a seamless air duct system. During the component installation stage, the positioning groove 402 of the convex plate 401 and the meshing mechanism of the hollow sleeve 406 enable stepless height adjustment of the electrical component clip 403. Combined with the on-site opening design of the support frame 5, it can accommodate electrical components of different brands and specifications. Finally, the pre-assembled enclosure is fixed to the wall surface through the wall-mounting plate 701 of the quick-installation assembly 7. The T-block 115 engages with the wedge-shaped surface of the card seat 703. Under the action of the damping mechanism composed of the slide rod 708, the round sleeve 706, and the second spring 709, the enclosure is automatically and adaptively mounted to the building base. This assembly process, through modular pre-assembly and mechanical guiding mechanism, significantly reduces on-site construction difficulty and quality risks.

[0030] like Figures 3 to 5As shown, the inner liner assembly 1 includes an inner liner main board 101, with inner liner outer shells 103 fixedly connected to its four sides. A back shell 102 is fixedly connected to one end of the inner liner main board 101. Several inner liner outer shells 103 are externally fixedly connected to reinforcing ribs 106. Several second cable management holes 105 are arranged in a matrix in the middle of the inner liner main board 101. A first cable management hole 104 is provided in the middle of the bottom inner liner outer shell 103. Ventilation pipes 109 are respectively provided at the top and bottom of the middle of the inner liner outer shells 103 on both sides. Several cable management holes 105 are rotatably connected to the sides of the vent pipes 109. A turntable 110 is arranged symmetrically in an up-down array. A square fan blade 111 is fixedly connected between two turntables 110 at the same height. A cylinder 114 is fixedly connected to the side of the turntable 110 away from the square fan blade 111. A pull frame 112 is slidably connected to the outside of the vent pipe 109. A first sliding groove 113 is provided on both sides of the pull frame 112. The first sliding groove 113 is engaged and slidably connected with the cylinder 114. When the T-shaped block 115 is pressed, it rotates around the rotation point between itself and the back shell 102, pushing the U-shaped block 116 connected to it to move into the box. The U-shaped block 116 pulls the pull frame 112 in a linear motion outside the vent pipe 109 via the linkage bar 117 and extension bar 118. The first sliding groove 113 on the pull frame 112 drives the cylinder 114 to rotate, which in turn drives the turntable 110 and the square fan blade 111 fixed thereon to rotate synchronously, switching the fan blades from the open state to the closed state, temporarily closing the air duct of the vent pipe 109 to prevent dust from entering the housing during installation. This process is completed automatically by mechanical linkage and requires no additional operation.

[0031] like Figures 3 to 5 As shown, extension strips 118 are fixedly connected to the ends of pull frames 112 that are close to each other. Linkage strips 117 are rotatably connected to the ends of extension strips 118 that are away from pull frames 112. A U-shaped block 116 is rotatably connected between the linkage strips 117 on the same side. A limiting slide strip 121 is fixedly connected to the middle of the end of the U-shaped block 116 near the linkage strip 117. A limiting sleeve 119 is slidably connected through the middle of the limiting slide strip 121. The limiting sleeve 119 is fixedly connected to the inner shell 103. The limiting slide strip 121 is slidably connected to the middle of the U-shaped block 116. A trapezoidal spring piece 120 is provided between the end and the limiting slide sleeve 119. A T-shaped block 115 is rotatably connected to the end of the U-shaped block 116 away from the limiting slide strip 121. The middle part of the T-shaped block 115 is rotatably connected to the back shell 102. The end of the T-shaped block 115 away from the U-shaped block 116 is in contact with the quick-installation component 7. Several installation strips 108 are fixedly connected to the middle part of the end of the inner liner main board 101 of the back shell 102. A locking block 107 is fixedly connected to the surface of the installation strip 108. The locking block 107 is slidably engaged with the quick-installation component 7.

[0032] like Figure 6As shown, the outer shell assembly 3 includes several external partitions 301. Square clips 304 are fixedly connected to the four corners of one side surface of the external partitions 301. The square clips 304 are slidably connected to the top corner sleeves 801. Two vents 302 are provided at the top and bottom of the middle of the surface of the external partitions 301 on both sides. The vents 302 correspond one-to-one with the vent pipes 109. A third cable management hole 303 is provided at the middle of the bottom external partition 301.

[0033] like Figures 7 to 8 As shown, the assembly frame 8 includes several corner sleeves 801 and several shaping rods 802. The two ends of the shaping rods 802 are slidably connected to different corner sleeves 801. The corner sleeves 801 and shaping rods 802 form a frame structure. The inner sides of the corner sleeves 801 and shaping rods 802 are respectively attached to the outer side of the inner shell 103. Long screws 803 are threaded through the surface of the corner sleeves 801. The long screws 803 are threaded through the cabinet door 2 and the back shell 102 respectively. The through end of the long screws 803 is threaded through the surface of the reinforcing rib 106. Positioning inserts 804 are slidably connected through the corner sleeves 801. The positioning inserts 804 are slidably connected through the shaping rods 802 and square clips 304 respectively. Inserting the positioning inserts 804 allows them to pass through the corner sleeves 801, shaping rods 802 and square clips 304, thereby enhancing the overall structural stability and torsional strength.

[0034] like Figures 9 to 11 As shown, the component mounting bracket 4 includes a convex plate 401. The two sides of the convex plate 401 are fixedly connected to the inner liner main plate 101. The two sides of the convex plate 401 away from the inner liner main plate 101 are fixedly connected to a support frame 5. The support frame 5 can be opened as needed. Positioning grooves 402 are respectively provided on both sides of the middle of the convex plate 401. Toothed grooves 405 are provided on both sides of the positioning grooves 402. A hollow sleeve 406 is slidably connected inside the positioning grooves 402. An electrical component clip 403 is fixedly connected to one end of the hollow sleeves 406 at the same height. A straight plate 404 is slidably connected to the inner side of the sleeve 406. A first spring 407 is provided between the straight plate 404 and the hollow sleeve 406. A rack 408 is provided on both sides of the straight plate 404, and the rack 408 is slidably connected to the hollow sleeve 406. The rack 408 slidably engages with the toothed groove 405. Electrical components can be installed on the electrical component retaining strip 403. When the installation height of the electrical component needs to be adjusted, simply press the straight plate 404 to compress the first spring 407, causing the rack 408 to disengage from the toothed groove 405 on the convex plate 401. At this time, the hollow sleeve 406 and the fixed electrical component retaining strip 403 can be slid together and moved along the positioning groove 402 to the desired height. Releasing the straight plate 404 allows the rack 408 to re-engage with the toothed groove 405 under the action of the first spring 407, completing the positioning. This stepless adjustment function solves the limitations of traditional fixed mounting hole spacing.

[0035] like Figures 12 to 13 As shown, the quick-installation component 7 includes a wall-mounting panel 701, which slides into contact with a T-shaped block 115. Mounting holes 702 are fixedly connected to the four sides of the wall-mounting panel 701, and the mounting holes 702 are fixedly connected to the wall surface via bolts. A mounting bracket 703 is fixedly connected to both sides of the middle of the wall-mounting panel 701. Wide plates 705 are rotatably connected to the upper and lower ends of the mounting bracket 703. A narrow plate 707 is rotatably connected to the end of the wide plate 705 away from the mounting bracket 703. A square frame 710 is rotatably connected to the end of the narrow plate 707 away from the wide plate 705. A slide rod 708 is rotatably connected to the middle of one end of the circular sleeve 706 near the circular sleeve 707. The end of the slide rod 708 away from the thin plate 707 is slidably connected to the circular sleeve 706. A second spring 709 is provided between the inner side of the circular sleeve 706 and the slide rod 708. The end of the circular sleeve 706 away from the slide rod 708 is rotatably connected to the card holder 703. Several T-slots 704 are provided on the surface of the square frame 710. The T-slots 704 slidably engage with the card block 107. The inner liner assembly 1 is aligned with the T-slots 704 of the quick-installation assembly 7 via the card block 107 on its back and pushed parallel to the wall. The card block 107 slides into the T-slots 704, achieving initial guidance and positioning of the inner liner assembly 1.

[0036] The working principle of this embodiment is as follows: During construction, the quick-installation component 7 is first fixed to the wall: expansion bolts are used to pass through the mounting hole plate 702 to firmly install the wall panel 701 in the predetermined position, and then the main body of the box is quickly assembled.

[0037] The inner liner assembly 1 is aligned with the T-slot 704 of the quick-installation assembly 7 via the locking block 107 on its back and pushed parallel to the wall. The locking block 107 slides into the T-slot 704, achieving initial guidance and positioning of the inner liner assembly 1. During this process, the end of the T-block 115 on the back shell 102 of the inner liner assembly 1 contacts and is pressed against the surface of the wall panel 701.

[0038] When pressed, the T-shaped block 115 rotates around the point of rotation between itself and the back shell 102, pushing the U-shaped block 116 connected to it to move into the box. The U-shaped block 116 pulls the pull frame 112 to move linearly outside the vent pipe 109 through the linkage bar 117 and the extension bar 118.

[0039] The first slide groove 113 on the pull frame 112 drives the cylinder 114 to rotate, which in turn drives the turntable 110 and the square fan blades 111 fixed on it to rotate synchronously, switching the fan blades from the open state to the closed state, temporarily closing the air duct of the ventilation pipe 109 to prevent dust from entering the housing during installation. This process is completed automatically by mechanical linkage and requires no additional operation.

[0040] Insert the assembly frame 8 into the front of the box body, so that the inner side of its top corner sleeve 801 and shaping rod 802 fits against the outer side of the inner liner shell 103, thus completing the positioning of the frame.

[0041] The square clip 304 of the outer shell assembly 3 is inserted from the side into the corresponding top corner sleeve 801 of the assembly frame 8 to achieve quick installation of the outer shell. The vent 302 on the outer shell assembly 3 is automatically aligned with the vent pipe 109 of the inner liner assembly 1.

[0042] Insert the positioning strip 804 so that it passes through the top corner sleeve 801, the shaping rod 802 and the square retaining strip 304 to enhance the overall structural stability and torsional strength.

[0043] Close the isolation cabinet door 2 and screw in the long screw 803 from the front. The long screw 803 passes through the isolation cabinet door 2, the top corner sleeve 801, and the back shell 102 in sequence, and finally connects with the reinforcing rib 106 of the inner liner assembly 1 by thread, thus tightly pressing the three major components of the cabinet door, frame, and inner liner into a whole.

[0044] After the enclosure is installed in place, the continuous pressure of the T-block 115 against the quick-installation assembly 7, along with the elastic force of the trapezoidal spring 120, secures the entire enclosure firmly to the wall. If environmental factors such as wind or vibration cause a slight displacement of the enclosure, the pressure change in the T-block 115 will be fed back to the square fan blade 111 in real time through the aforementioned linkage mechanism, finely adjusting the air duct opening to achieve dynamic sealing.

[0045] Electrical components can be mounted on the component retaining strip 403. When adjusting the mounting height of the component, simply press the straight plate 404 to compress the first spring 407, causing the rack 408 to disengage from the toothed groove 405 on the convex plate 401. At this point, the hollow sleeve 406 and the fixed component retaining strip 403 can be slid together and moved along the positioning groove 402 to the desired height. Releasing the straight plate 404 allows the rack 408 to re-engage with the toothed groove 405 under the action of the first spring 407, completing the positioning. This stepless adjustment function overcomes the limitations of traditional fixed mounting hole spacing.

[0046] Cables can be introduced and distributed through the matrix of the first cable management hole 104, the second cable management hole 105, and the third cable management hole 303 on the outer casing, achieving a three-dimensional, layered, and strong and weak current separation cable routing method to reduce interference.

[0047] In summary, this invention enables rapid, modular, and tool-minimized operation of the entire process of the distribution box, from wall installation and box structure assembly to internal component adjustment, significantly improving installation efficiency and flexibility.

[0048] The above description is merely a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention.

Claims

1. A three-dimensional layered modular distribution box with a rapid assembly structure, comprising an inner liner assembly (1), characterized in that: An assembly frame (8) is installed on the outside of the inner liner assembly (1). An outer shell assembly (3) is installed on the left and right sides and the top and bottom ends of the assembly frame (8). An isolation cabinet door (2) is installed on the end of the assembly frame (8) near the opening of the inner liner assembly (1). A quick-installation assembly (7) is installed on the end of the inner liner assembly (1) away from the isolation cabinet door (2). A component mounting bracket (4) is fixedly connected to the inside of the inner liner assembly (1). A support frame (5) is fixedly connected to the side of the component mounting bracket (4) away from the inner liner assembly (1). Two decorative panels (6) are installed on the surface of the support frame (5) away from the component mounting bracket (4). The inner liner assembly (1) includes an inner liner main board (101), and an inner liner outer shell (103) is fixedly connected to each of the four sides of the inner liner main board (101). A back shell (102) is fixedly connected to one end of the inner liner main board (101). The assembly frame (8) includes several corner sleeves (801) and several shaping rods (802). The two ends of the shaping rods (802) are respectively slidably connected to different corner sleeves (801). The corner sleeves (801) and shaping rods (802) constitute a frame structure. The inner sides of the corner sleeves (801) and shaping rods (802) are respectively attached to the outer side of the inner shell (103).

2. A three-dimensional layered modular distribution box with a rapid assembly structure according to claim 1, characterized in that, A number of inner liner shells (103) are fixedly connected to a reinforcing rib (106) on their exteriors. A number of second cable management holes (105) are arranged in a matrix in the middle of the inner liner main plate (101). A first cable management hole (104) is provided in the middle of the bottom inner liner shell (103). Vent pipes (109) are respectively provided at the top and bottom of the middle of the inner liner shells (103) on both sides. A number of turntables (110) are rotatably connected through both sides of the vent pipes (109). The turntables (110) are arranged in a symmetrical vertical array. A square fan blade (111) is fixedly connected between two turntables (110) at the same height. A cylinder (114) is fixedly connected to the side of the turntable (110) away from the square fan blade (111). A pull frame (112) is slidably connected to the outside of the vent pipe (109). A first sliding groove (113) is provided on both sides of the pull frame (112). The first sliding groove (113) is engaged and slidably connected with the cylinder (114).

3. A three-dimensional layered modular distribution box with a rapid assembly structure according to claim 2, characterized in that: The pull frame (112) has extension strips (118) fixedly connected to its close-to-each end. A linkage strip (117) is rotatably connected to the end of each extension strip (118) away from the pull frame (112). A U-shaped block (116) is rotatably connected between the linkage strips (117) on the same side. A limiting slide strip (121) is fixedly connected to the middle of the U-shaped block (116) near the linkage strip (117). A limiting sleeve (119) is slidably connected through the middle of the limiting slide strip (121). The limiting sleeve (119) is fixedly connected to the inner shell (103). A trapezoidal spring piece (120) is provided between the end of the limiting strip (121) away from the U-shaped block (116) and the limiting sleeve (119). A T-shaped block (115) is rotatably connected to the end of the U-shaped block (116) away from the limiting strip (121). The middle part of the T-shaped block (115) is rotatably connected to the back shell (102). The end of the T-shaped block (115) away from the U-shaped block (116) is attached to the quick-installation assembly (7).

4. A three-dimensional layered modular distribution box with a rapid assembly structure according to claim 1, characterized in that, The inner liner motherboard (101) is provided with a back shell (102) with a number of mounting strips (108) fixedly connected to the middle part of one end. The mounting strips (108) are fixedly connected to the surface of the mounting blocks (107), and the mounting blocks (107) are slidably engaged with the quick-installation assembly (7).

5. A three-dimensional layered modular distribution box with a rapid assembly structure according to claim 1, characterized in that, The outer shell assembly (3) includes several external partitions (301). Square clips (304) are fixedly connected to the four corners of one side surface of several external partitions (301). The square clips (304) are slidably connected to the top corner sleeve (801). Two vents (302) are provided in the middle of the surface of the external partitions (301) on both sides. The vents (302) correspond one-to-one with the vent pipes (109). A third cable management hole (303) is provided in the middle of the external partition (301) at the bottom.

6. A three-dimensional layered modular distribution box with a rapid assembly structure according to claim 1, characterized in that, Several of the top corner sleeves (801) are threaded with long screws (803) through their surfaces. The long screws (803) are threaded to the isolation cabinet door (2) and the back shell (102) respectively. The through end of the long screws (803) is threaded to the surface of the reinforcing rib (106). The top corner sleeves (801) are slidably connected with positioning inserts (804). The positioning inserts (804) are slidably connected to the shaping rod (802) and the square clip (304) respectively.

7. A three-dimensional layered modular distribution box with a rapid assembly structure according to claim 1, characterized in that, The component mounting bracket (4) includes a convex plate (401), the two sides of which are fixedly connected to the inner liner main plate (101), and the two sides of the convex plate (401) away from the inner liner main plate (101) are fixedly connected to a support frame (5). The support frame (5) can be opened as needed. Positioning grooves (402) are respectively provided on both sides of the middle part of the convex plate (401), and toothed grooves (405) are provided on both sides of the positioning grooves (402). A hollow sleeve is slidably connected to the inner side of the positioning grooves (402). (406) An electrical component clip (403) is fixedly connected to one end of the hollow sleeve (406) at the same height. A straight plate (404) is slidably connected to the inside of the hollow sleeve (406). A first spring (407) is provided between the straight plate (404) and the hollow sleeve (406). A rack (408) is provided on both sides of the straight plate (404). The rack (408) is slidably connected to the hollow sleeve (406) through it. The rack (408) is slidably engaged with the tooth groove (405).

8. A three-dimensional layered modular distribution box with a rapid assembly structure according to claim 1, characterized in that, The quick-installation assembly (7) includes a wall-mounting panel (701), which slides against a T-shaped block (115). Mounting holes (702) are fixedly connected to the four sides of the wall-mounting panel (701), and the mounting holes (702) are fixedly connected to the wall surface via bolts. A mounting bracket (703) is fixedly connected to both sides of the middle portion of the wall-mounting panel (701). Wide plates (705) are rotatably connected to the upper and lower ends of the mounting bracket (703). A narrow plate (707) is rotatably connected to the end of the wide plate (705) away from the mounting bracket (703), and the narrow plate (707) is located away from the wide plate (705). One end of the square frame (710) is rotatably connected to the other end of the square frame (707). A slide rod (708) is rotatably connected to the middle of the end of the thin plate (707) near the round sleeve (706). The end of the slide rod (708) away from the thin plate (707) is slidably connected to the round sleeve (706). A second spring (709) is provided between the inner side of the round sleeve (706) and the slide rod (708). The end of the round sleeve (706) away from the slide rod (708) is rotatably connected to the card seat (703). Several T-slots (704) are provided on the surface of the square frame (710). The T-slots (704) are slidably engaged with the card block (107).

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