Modular power distribution box body structure capable of being assembled and spliced

Abstract

The utility model relates to electrical equipment installation technical field, concretely is a kind of modular power distribution box body structure of combinable splicing, including box unit, the left side wall outside integrally formed with the guide rail pedestal of longitudinal extension of box unit, main guide rail is fixedly installed on the guide rail pedestal, the right side wall outside of box unit is equipped with bearing frame, the sliding groove piece of sliding cooperation with main guide rail is fixedly installed in bearing frame, and the upper connecting portion with elastic buckle is equipped with in the top of box unit, the lower clamping groove portion that engages with elastic buckle is equipped with in the corresponding position of the bottom of box unit, and the edge of the front and back side wall of box unit is equipped with annular sealing platform for installing sealing element. This modular power distribution box body structure of combinable splicing can realize tool-free quick assembly and disassembly, improves installation efficiency, enhances the combination flexibility, is convenient for on-site adjustment and maintenance.

Description

Technical Field

[0001] This utility model relates to the field of electrical equipment installation technology, specifically to a modular distribution box structure that can be assembled and spliced. Background Technology

[0002] With the increasing complexity of modern building electrical systems, distribution boxes, as the core device for power distribution and control, are widely used in industrial, commercial, and civil buildings. To adapt to the installation requirements and load configurations of different occasions, distribution boxes are developing towards modularization and standardization. Modular design not only improves assembly efficiency but also facilitates later maintenance and expansion.

[0003] Existing modular distribution boxes typically employ a method of mounting holes on the side walls of the box and securing adjacent boxes together with bolts or connecting plates during multi-box assembly. This connection method requires specialized tools for tightening, making the installation process cumbersome and time-consuming, especially in space-constrained environments. Each assembly operation requires aligning the holes, inserting bolts, and tightening them individually, resulting in slow overall assembly speed and high labor costs. Furthermore, when the number of boxes needs to be adjusted or the layout rearranged, the bolts must be removed one by one, leading to poor repeatability and hindering rapid reconfiguration. This limits the flexibility and efficiency of the distribution box system in applications requiring frequent configuration changes. Utility Model Content

[0004] The purpose of this utility model is to provide a modular distribution box structure that can be assembled and spliced, so as to solve the problems mentioned in the background art that the current modular distribution box splicing relies on external connectors such as bolts, installation requires tools, operation is cumbersome and time-consuming, disassembly and assembly efficiency is low and it is not conducive to rapid reassembly.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a modular distribution box structure that can be assembled and spliced, including a box unit. A longitudinally extending guide rail base is integrally formed on the outer side of the left side wall of the box unit. A main guide rail is fixedly installed on the guide rail base. A bearing frame is provided on the outer side of the right side wall of the box unit. A sliding groove component that slides and engages with the main guide rail is fixedly installed in the bearing frame. An upper connecting part with an elastic buckle is provided on the top of the box unit. A lower locking groove part that engages with the elastic buckle is provided at a corresponding position on the bottom of the box unit. An annular sealing platform for installing sealing components is provided on the front and rear side wall edges of the box unit.

[0006] Preferably, the end of the main guide rail is provided with a radially enlarged locking head, the inside of the slide member is formed with an engaging step that matches the locking head at the end of the main guide rail, and the inlet end of the slide member is provided with a guide slope.

[0007] Preferably, the support frame is a metal insert with multiple columnar protrusions on its back, and the inside of the right side wall of the box unit has blind holes that correspond to and cooperate with the columnar protrusions.

[0008] Preferably, the top of the guide rail base is provided with a positioning tenon, and the bottom of the bearing frame is provided with a positioning groove that matches the positioning tenon.

[0009] Preferably, the upper connecting part is provided with a metal elastic sheet, the free end of the metal elastic sheet is inclined upward and backward, and the front end of the lower slot is provided with an inlet slope.

[0010] Preferably, the annular sealing platform is a continuous protrusion structure and is provided along the circumferential edges of the front and rear side walls of the housing unit.

[0011] Compared with existing technologies, the advantages of this utility model are as follows: the modular distribution box structure that can be assembled and disassembled without tools can achieve quick assembly and disassembly, improving installation efficiency, enhancing combination flexibility, and facilitating on-site adjustment and maintenance. This structure achieves rapid guidance and stable connection for horizontal splicing through the sliding insertion design of the main guide rail and the sliding groove component. The elastic snap-locking cooperation between the upper connecting part and the lower slot part achieves rapid fixing for vertical stacking. Combined with the positioning tenons and positioning grooves on the guide rail base and the bearing frame, the alignment accuracy during multi-box splicing is further improved. The annular sealing platform ensures the protective performance of the splicing gaps. The overall structure has strong linkage and is easy to assemble and disassemble, significantly improving the on-site assembly efficiency and usage flexibility of the modular distribution box. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the modular distribution box structure that can be assembled and spliced ​​according to the present invention.

[0013] Figure 2 This is a schematic diagram of the modular distribution box structure that can be assembled and spliced ​​according to the present invention.

[0014] Figure 3 This is a left-side view of the modular distribution box structure that can be assembled and spliced ​​according to this utility model.

[0015] Figure 4 This is a right-side view of the modular distribution box structure that can be assembled and spliced ​​according to this utility model.

[0016] In the figure: 1. Box unit; 2. Guide rail base; 21. Positioning tenon; 3. Main guide rail; 4. Bearing frame; 41. Positioning groove; 5. Sliding part; 6. Elastic buckle; 61. Metal elastic sheet; 7. Upper connecting part; 8. Lower slot part; 9. Annular sealing platform. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figure 1-3This utility model provides a technical solution: a modular distribution box structure that can be assembled and spliced, including a box unit 1. The box unit 1 is made of high-strength aluminum alloy material, which has good corrosion resistance and mechanical strength. A longitudinally extending guide rail base 2 is integrally formed on the outer side of the left side wall of the box unit 1. A main guide rail 3 with a "T" shaped cross section is fixedly installed on the guide rail base 2. The main guide rail 3 and the guide rail base 2 are reinforced and connected by rivets or high-strength bolts to ensure stability during repeated insertion and removal operations. A bearing frame 4 is provided on the outer side of the right side wall of the box unit 1. The inner surface of the bearing frame 4 is anodized to improve wear resistance and corrosion resistance. A "T" shaped sliding groove 5 that slides with the main guide rail 3 is fixedly installed inside the bearing frame 4. The entrance is equipped with a guide ramp, and the top of the housing unit 1 has an upper connecting part 7 with an elastic buckle 6. The elastic buckle 6 is made of stainless steel and has excellent elasticity and durability. The bottom of the housing unit 1 has a corresponding lower slot 8 that engages with the elastic buckle 6. The front and rear side walls of the housing unit 1 have annular sealing platforms 9 for installing seals. When multiple housing units 1 need to be horizontally spliced, the main guide rail 3 of one housing unit 1 is aligned with the entrance of the sliding groove 5 of another housing unit 1, and pushed in along the guide ramp. The main guide rail 3 slides in the sliding groove 5 until it is fully inserted, achieving quick docking without the need for bolts or connecting pieces for fixing, eliminating the need for tool operation. When stacking is required, the upper connecting part 7 of the upper housing unit 1 is aligned with the lower connecting part 8. The lower slot 8 of the square box unit 1 is pressed down vertically. The elastic buckle 6 undergoes elastic deformation under the guidance of the inclined surface, and automatically rebounds and locks after passing the lower slot 8, completing the vertical connection. At the same time, the annular sealing platform 9 presses the sealing strip during the splicing process to ensure the protective performance of the joint. The entire splicing process achieves multi-directional rapid locking, which is simple to operate and reliable to connect, significantly improving the installation efficiency. It solves the problems of existing technology where the splicing of distribution boxes relies on bolts, requires special tools, is cumbersome and time-consuming to install, is inconvenient to disassemble and assemble, and is difficult to quickly reassemble. It greatly enhances the application flexibility and maintenance convenience of modular distribution boxes in complex field environments and frequent adjustment scenarios. The end of the main guide rail 3 is provided with a radially enlarged locking head, and the internal forming of the sliding groove 5 is consistent with the end of the main guide rail 3. The locking head has a matching engagement step, and the inlet end of the slide rail 5 has a guide slope. In this structure, the locking head of the main guide rail 3 slides in along the guide slope at the inlet of the slide rail 5, and then engages with the engagement step inside the slide rail 5 to achieve positioning and self-locking, preventing the box from coming apart laterally and ensuring a firm and reliable splicing. The bearing frame 4 is a metal insert with multiple columnar protrusions on its back. The inside of the right side wall of the box unit 1 has blind holes that correspond to these columnar protrusions. The bearing frame 4 is fixed to the wall of the box unit 1 by heat fusion. This structure improves the connection strength and stability between the bearing frame 4 and the box by embedding the columnar protrusions on the back of the bearing frame 4 into the blind holes in the wall of the box unit 1 and achieving firm fixation by heat fusion, ensuring that the slide rail 5 is not easy to loosen or deform during repeated insertion and removal splicing.The service life of the overall structure is extended. The top of the guide rail base 2 is provided with a positioning tenon 21, and the bottom of the bearing frame 4 is provided with a positioning groove 41 that matches the positioning tenon 21. When two adjacent box units 1 are spliced, the positioning tenon 21 is inserted into the positioning groove 41 to achieve lateral pre-positioning. During the splicing of adjacent box units 1, this structure achieves rapid alignment guidance through the cooperation of the positioning tenon 21 and the positioning groove 41, effectively reducing the risk of misalignment when the main guide rail 3 and the sliding part 5 are connected, improving splicing efficiency and assembly accuracy. The upper connecting part 7 is provided with a metal elastic piece 61. The free end of the metal elastic piece 61 is tilted upward and backward, and the lower clamp is... The front end of the slot 8 is equipped with an inlet ramp. When the upper and lower cabinet units 1 are stacked, the inlet ramp of the lower slot 8 presses against the metal elastic sheet 61, causing it to deform elastically. Once in place, the metal elastic sheet 61 rebounds and engages with the lower slot 8, achieving rapid self-locking and ensuring a stable and reliable vertical connection. This facilitates quick installation and disassembly. The annular sealing platform 9 is a continuous raised structure, set along the circumferential edges of the front and rear side walls of the cabinet unit 1. When adjacent cabinet units 1 are spliced, the annular sealing platform 9 presses against the sealing strip, effectively preventing external dust and moisture from intruding through the splicing gaps, thus improving the overall protection level and environmental adaptability of the distribution box.

[0019] Working principle: When using this modular distribution box structure that can be assembled and spliced, firstly, two box units 1 are aligned side by side in a predetermined position, so that the main guide rail 3 of one box unit 1 is aligned with the entrance of the slide groove 5 of the other box unit 1, and pushed horizontally along the guide slope. The main guide rail 3 slides into the slide groove 5 until the locking head is engaged with the engagement step. At the same time, the positioning tenon 21 on the top of the guide rail base 2 is inserted into the positioning groove 41 at the bottom of the adjacent bearing frame 4, completing the horizontal splicing. When it is necessary to stack them vertically, the upper connecting part 7 of the upper box unit 1 is aligned with the lower slot part 8 of the lower box unit 1 and pressed down vertically. The metal elastic sheet 61 undergoes elastic deformation under the action of the guide slope at the front end of the lower slot part 8 and passes through the slot. Then it rebounds and resets and engages in the lower slot part 8, realizing vertical locking. After multiple box units 1 are spliced ​​horizontally or vertically, sealing strips are installed on the annular sealing platform 9 of each box. A continuous seal is formed by the pressing fit between adjacent boxes, thus completing a series of operations.

[0020] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A modular distribution box structure that can be assembled and connected, comprising a box unit (1), characterized in that: The outer side of the left side wall of the box unit (1) is integrally formed with a longitudinally extending guide rail base (2), and a main guide rail (3) is fixedly installed on the guide rail base (2). The outer side of the right side wall of the box unit (1) is provided with a bearing frame (4), and a sliding groove (5) that slides with the main guide rail (3) is fixedly installed in the bearing frame (4). The top of the box unit (1) is provided with an upper connecting part (7) with an elastic buckle (6), and the bottom of the box unit (1) is provided with a lower slot part (8) that engages with the elastic buckle (6). The front and rear side wall edges of the box unit (1) are provided with annular sealing platforms (9) for installing sealing elements.

2. The modular distribution box structure that can be assembled and connected according to claim 1, characterized in that: The main guide rail (3) has a radially enlarged locking head at its end, and the slide rail (5) has an engagement step inside that matches the locking head at the end of the main guide rail (3), and the slide rail (5) has a guide slope at its inlet end.

3. The modular distribution box structure that can be assembled and connected according to claim 1, characterized in that: The support frame (4) is a metal insert with multiple columnar protrusions on its back side. The right side wall of the box unit (1) has blind holes that correspond to and cooperate with the columnar protrusions.

4. The modular distribution box structure that can be assembled and connected according to claim 1, characterized in that: The top of the guide rail base (2) is provided with a positioning tenon (21), and the bottom of the bearing frame (4) is provided with a positioning groove (41) that matches the positioning tenon (21).

5. The modular distribution box structure that can be assembled and connected according to claim 1, characterized in that: The upper connecting part (7) is provided with a metal elastic sheet (61), the free end of the metal elastic sheet (61) is tilted upward and backward, and the front end of the lower slot part (8) is provided with an inlet slope.

6. The modular distribution box structure that can be assembled and connected according to claim 1, characterized in that: The annular sealing platform (9) is a continuous protruding structure and is set along the circumferential edges of the front and rear side walls of the box unit (1).

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