SMC low-voltage junction box

By introducing a flip adjustment component and a locking component into the SMC low-voltage distribution box, the problem that the flip assembly could not adapt to different door sizes has been solved, achieving more flexible installation and higher protection.

CN223797875UActive Publication Date: 2026-01-13ZHEJIANG DONGDIAN TRANSFORMER CO LTD
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Patent Information

Application Number
CN202520146078.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-22
Publication Date
2026-01-13
Estimated Expiration
2035-01-22

AI Technical Summary

Technical Problem

The existing flip-up assembly structure of SMC low-voltage distribution boxes cannot adapt to different door sizes, resulting in complicated production and installation, inconvenient disassembly, and poor protection.

Method used

The introduction of a flip adjustment mechanism and a locking mechanism allows for position adjustment of the flip shaft assembly, making door installation and removal more convenient, while the locking mechanism provides protection.

Benefits of technology

It simplifies the installation and adjustment process, improves versatility and flexibility, and enhances the protection and security of the cabinet door.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to an SMC low-voltage junction box. The technical problem to be solved by the utility model is to provide an SMC low-voltage junction box. According to the technical scheme, the junction box comprises a junction box body, a box body front cross beam, a first box door, a second box door and a turnover assembly, each of the first box door and the second box door comprises a box door main body, a spring limiting plate and a turnover shaft assembly, and the turnover shaft assembly comprises a box door turnover shaft which is telescopically arranged on the spring limiting plate. The box door overturning shaft comprises an overturning shaft body and an overturning shaft positioning column, and the overturning shaft positioning column is provided with a horizontally-penetrating overturning shaft locking opening. Compared with the prior art, the distribution box has the advantages that the turnover adjusting piece and the locking piece are introduced, the turnover adjusting piece can be installed at any position of the front cross beam of the box body according to needs, the position of the turnover shaft on the box door can be conveniently adjusted so as to adapt to different box door sizes, the adjustability greatly simplifies the installation and adjustment process of the distribution box, and the installation and adjustment efficiency is improved. And the flexibility and the universality are higher.
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Description

Technical Field

[0001] This utility model relates to an SMC low-voltage junction box. Background Technology

[0002] SMC low-voltage junction boxes are important devices widely used in power distribution and control systems, primarily for the connection, distribution, and protection of electrical wiring. An SMC low-voltage junction box includes a junction box body, a front crossbeam mounted on the body, a first door and a second door, and a flip assembly for flipping the first and second doors. Existing SMC low-voltage junction boxes typically have a fixed flip assembly structure, lacking the ability to adjust to different door sizes. In practical applications, due to varying customer needs, the size of the junction box and the design of the doors differ. With changes in box and door dimensions, traditional fixed flip devices cannot effectively adapt, resulting in the flip assembly's position not being adjustable with door size changes, leading to poor versatility. Different door sizes require different models of flip assemblies, increasing production and installation complexity and causing inventory management difficulties; existing flip devices also make door installation and disassembly complex. When maintenance, adjustment, or replacement of parts is required, traditional designs often make disassembly inconvenient, causing operational difficulties. The lack of a flexible installation mechanism and simple disassembly method reduces the efficiency of equipment maintenance; in addition, the overall protection of the flip-up assembly is poor, so improvements and optimizations are needed. Utility Model Content

[0003] To solve the above problems, the technical problem to be solved by this utility model is to provide an SMC low-voltage distribution box.

[0004] The technical solution adopted by this utility model SMC low-voltage junction box is characterized by including a junction box body, a front crossbeam of the junction box body, a first door and a second door, and a flip assembly for flipping the door. The first door and the second door each include a door body, a spring limiting plate and a flip shaft assembly. The flip shaft assembly includes a door flip shaft that is telescopically mounted on the spring limiting plate. The door flip shaft includes a flip shaft body and a flip shaft positioning post. The flip shaft positioning post is provided with a horizontally penetrating flip shaft lock slot.

[0005] The flip assembly includes a flip adjustment component and a locking component. The flip adjustment component includes an adjustment main board fixed on the front crossbeam of the housing. The upper and lower ends of the adjustment main board are bent vertically outward to form adjustment docking plates. The adjustment docking plates are provided with longitudinally penetrating docking holes for docking with the flip shaft positioning posts. The locking component includes a locking main board. The locking main board is provided with a locking plate corresponding to the docking plate positioning holes and for insertion into the flip shaft locking port.

[0006] The flip shaft assembly also includes a compression spring and connecting screws. The spring limiting plate includes a limiting plate mounting part welded to the main body of the door. The front and rear ends of the limiting plate mounting part are vertically bent to form a limiting plate stop. The limiting plate stop is provided with a limiting plate through hole that runs through the front and rear and is used for the door flip shaft to pass through.

[0007] The main body of the flip shaft is provided with a flip shaft limiting boss placed between the two limiting plate stops. The main body of the flip shaft is fixed to the limiting plate stops by the connecting screw. The compression spring is sleeved on the main body of the flip shaft, with one end abutting against the flip shaft limiting boss and the other end abutting against the limiting plate stops.

[0008] The locking element is detachably connected to the flip adjustment element.

[0009] The adjusting component docking plate is provided with an adjusting component elastic locking block. The upper and lower ends of the locking component main board are vertically bent to form a locking component mounting plate that wraps around the adjusting component docking plate. The locking component mounting plate is provided with a locking component slot corresponding to the adjusting component elastic locking block.

[0010] The front crossbeam of the housing is provided with front crossbeam adjustment holes at intervals. The main body of the adjustment component is provided with adjustment component fixing holes corresponding to the front crossbeam adjustment holes. The main body of the adjustment component is also provided with adjustment component reinforcing protrusions at both ends of the adjustment component fixing holes, which are connected to the front crossbeam adjustment holes.

[0011] The advantages of this SMC low-voltage distribution box are as follows: It incorporates a flip-adjustment component and a locking component. The flip-adjustment component can be installed at any position on the front crossbeam of the box as needed, allowing for easy adjustment of the position of the flip shaft on the box door to accommodate different door sizes. This adjustability greatly simplifies the installation and adjustment process of the distribution box, resulting in greater flexibility and versatility. The structural design of the flip shaft assembly makes door installation and disassembly more convenient and quick, facilitating internal maintenance. The locking component can lock the flip shaft of the box door, providing higher protection and preventing the flip shaft assembly from loosening or failing due to frequent use, thus enhancing safety. Attached Figure Description

[0012] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0013] Figure 1 This is the main view of the SMC low-voltage distribution box of this utility model;

[0014] Figure 2 This is a structural schematic diagram of the first door of this utility model;

[0015] Figure 3 yes Figure 2 Enlarged image;

[0016] Figure 4 This is a schematic diagram of the structure of the door flipping shaft of this utility model;

[0017] Figure 5 This is a schematic diagram of the structure of the flip-adjusting component of this utility model;

[0018] Figure 6 This is a structural schematic diagram of the locking component of this utility model;

[0019] Figure 7 This is a structural schematic diagram of the main body of the box door of this utility model;

[0020] Figure 8 yes Figure 7 Enlarged image;

[0021] Figure 9 This is a schematic diagram of the structure of the front crossbeam of the box body of this utility model. Detailed Implementation

[0022] like Figure 1-9 As shown, the SMC low-voltage distribution box of this utility model includes a distribution box body 1, a front crossbeam 2 provided on the distribution box body 1, a first door 3 and a second door 4, and a flip assembly 5 for flipping the doors. Both the first door 3 and the second door 4 include a door body 8, a spring limiting plate 9, and a flip shaft assembly 10. The flip shaft assembly 10 includes a door flip shaft 13 telescopically mounted on the spring limiting plate 9. The door flip shaft 13 includes a flip shaft body 15 and a flip shaft positioning post 16. The flip shaft positioning post 16 has a horizontally penetrating flip shaft lock slot 17. The flip assembly 5 includes a flip adjustment component 6 and a locking component 7. The flip adjustment component 6 includes an adjustment main plate 20 fixed on the front crossbeam 2 of the distribution box body. The upper and lower ends of the adjustment main plate 20 are bent vertically outward to form an adjustment docking plate 2. 1. The adjusting plate 21 is provided with longitudinally penetrating positioning holes 22 for docking with the flip shaft positioning post 16. The locking member 7 includes a locking main plate 25. The locking main plate 25 is provided with a locking locking plate 26 corresponding to the positioning holes 22 and for insertion into the flip shaft locking port 17. The flip adjusting member 6 and the locking member 7 are introduced. The flip adjusting member 7 can be installed at any position on the front crossbeam 2 of the box as needed, and the position of the box door flip shaft 13 on the box door can be easily adjusted to adapt to different box door sizes. This adjustability greatly simplifies the installation and adjustment process of the distribution box, and has higher flexibility and versatility. The locking member 7 can lock the box door flip shaft 13, providing higher protection and preventing the flip shaft assembly 10 from loosening or failing due to frequent use, thus improving safety.

[0023] The flip shaft assembly 10 also includes a compression spring 11 and a connecting screw 12. The spring limiting plate 9 includes a limiting plate mounting part 30 welded to the door body 8. The front and rear ends of the limiting plate mounting part 30 are vertically bent to form a limiting plate stop 31. The limiting plate stop 31 is provided with a limiting plate through hole 32 that runs through the front and rear and is used for the door flip shaft 13 to pass through. The flip shaft body 15 is provided with a flip shaft limiting boss 18 placed between the two limiting plate stops 31. The flip shaft body 15 is fixed to the limiting plate stops 31 by the connecting screw 12. The compression spring 11 is sleeved on the flip shaft body 15, with one end abutting against the flip shaft limiting boss 18 and the other end abutting against the limiting plate stop 31. The structural design of the flip shaft assembly 10 makes the installation and disassembly of the door more convenient and quick, and facilitates internal maintenance.

[0024] The locking member 7 is detachably connected to the flip-adjusting member 6, which facilitates the installation and removal of the box door and provides greater flexibility.

[0025] The adjusting component docking plate 21 is provided with an adjusting component elastic latch 23. The upper and lower ends of the locking component main plate 25 are vertically bent to form a locking component mounting plate 27 that wraps around the adjusting component docking plate 21. The locking component mounting plate 27 is provided with a locking component slot 28 corresponding to the adjusting component elastic latch 23.

[0026] The front crossbeam 2 of the housing is provided with front crossbeam adjustment holes 35 at intervals. The main adjustment board 20 is provided with adjustment fixing holes 36 corresponding to the front crossbeam adjustment holes 35. The main adjustment board 20 is also provided with adjustment reinforcement protrusions 37 at both ends of the adjustment fixing holes 36, which are connected to the front crossbeam adjustment holes 35.

[0027] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model are included within the protection scope of the present utility model.

Claims

1. An SMC low-voltage distribution box, characterized in that: The package includes a junction box body (1), a front crossbeam (2) on the junction box body (1), a first door (3) and a second door (4), and a flip assembly (5) for flipping the doors. The first door (3) and the second door (4) each include a door body (8), a spring limiting plate (9) and a flip shaft assembly (10). The flip shaft assembly (10) includes a door flip shaft (13) that can be telescopically mounted on the spring limiting plate (9). The door flip shaft (13) includes a flip shaft body (15) and a flip shaft positioning post (16). The flip shaft positioning post (16) is provided with a horizontally penetrating flip shaft lock (17). The flip assembly (5) includes a flip adjustment component (6) and a locking component (7). The flip adjustment component (6) includes an adjustment main board (20) fixed on the front crossbeam (2) of the housing. The upper and lower ends of the adjustment main board (20) are bent vertically outward to form an adjustment docking plate (21). The adjustment docking plate (21) is provided with longitudinal through holes (22) for docking with the flip shaft positioning post (16). The locking component (7) includes a locking main board (25). The locking main board (25) is provided with a locking locking plate (26) corresponding to the docking plate positioning hole (22) and for insertion into the flip shaft locking port (17).

2. The SMC low-voltage distribution box according to claim 1, characterized in that: The flip shaft assembly (10) also includes a compression spring (11) and a connecting screw (12). The spring limiting plate (9) includes a limiting plate mounting part (30) welded to the main body of the door (8). The limiting plate mounting part (30) is bent vertically at the front and rear ends to form a limiting plate stop (31). The limiting plate stop (31) is provided with a limiting plate through hole (32) that runs through the front and rear and is used for the door flip shaft (13) to pass through. The rotating shaft body (15) is provided with a rotating shaft limiting boss (18) placed between the two limiting plate stops (31). The rotating shaft body (15) is fixed on the limiting plate stops (31) by the connecting screw (12). The compression spring (11) is sleeved on the rotating shaft body (15) with one end abutting against the rotating shaft limiting boss (18) and the other end abutting against the limiting plate stops (31).

3. The SMC low-voltage distribution box according to claim 1, characterized in that: The locking member (7) is detachably connected to the flip adjustment member (6).

4. The SMC low-voltage distribution box according to claim 3, characterized in that: The adjusting component docking plate (21) is provided with an adjusting component elastic block (23). The upper and lower ends of the locking component main plate (25) are vertically bent to form a locking component mounting plate (27) that wraps around the adjusting component docking plate (21). The locking component mounting plate (27) is provided with a locking component slot (28) corresponding to the adjusting component elastic block (23).

5. The SMC low-voltage distribution box according to claim 1, characterized in that: The front crossbeam (2) of the housing is provided with front crossbeam adjustment holes (35) spaced apart. The main body of the adjustment component (20) is provided with adjustment component fixing holes (36) corresponding to the front crossbeam adjustment holes (35). The main body of the adjustment component (20) is also provided with adjustment component reinforcing protrusions (37) at both ends of the adjustment component fixing holes (36) that are connected to the front crossbeam adjustment holes (35).