Low-voltage power distribution cabinet framework structure

By designing detachable support plates and snap-fit ​​mechanisms, the problem of installing and fixing the low-voltage distribution cabinet frame structure was solved, enabling flexible adjustment of the height of electrical components and adaptive installation.

CN224138569UActive Publication Date: 2026-04-17JIANGXI ZHONGYI ELECTRIC TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGXI ZHONGYI ELECTRIC TECH CO LTD
Filing Date
2025-05-17
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

The existing low-voltage distribution cabinet frame structure is fixed and not easy to adjust in a flexible manner, making it difficult to accommodate the installation of electrical components of different heights and sizes.

Method used

Design a skeleton structure including a support plate, a fixing plate, a connecting plate, and a grid plate. The support plate can be detached and installed by fastening rods and snap-fit ​​mechanisms, and the height of the grid plate can be adjusted by elastic snap-fit ​​posts and springs to achieve flexible installation of electrical components.

Benefits of technology

It enables the detachable assembly of the skeleton structure and the flexible adjustment of the height of electrical components, improving the flexibility and adaptability of installation.

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Abstract

The utility model relates to the technical field of low-voltage power distribution cabinets, in particular to a low-voltage power distribution cabinet framework structure which comprises supporting plates, clamping holes are formed in the side faces of the supporting plates, fixing plates are fixed to the upper ends and the lower ends of the supporting plates, and connecting plates are connected among the four supporting plates and located at the top ends of the fixing plates. And a supporting frame is mounted at the top end of the connecting plate. The beneficial effects are that the springing plate is ejected by the spring, the springing plate drives the clamping columns to pass through the guide holes and to be inserted into the clamping holes in the surfaces of the supporting plates, so that the grid plate is clamped and installed among the four supporting plates, and the grid plate can be moved up and down along the supporting plates according to the height size of an electrical element; and through clamping installation between the clamping columns and the clamping holes, the height of the grid plate is adjusted to flexibly install the electrical elements.
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Description

Technical Field

[0001] This utility model relates to the field of low-voltage distribution cabinet technology, and in particular to a low-voltage distribution cabinet frame structure. Background Technology

[0002] Low-voltage switchgear and control equipment, commonly known as low-voltage switch cabinets or low-voltage distribution cabinets, refers to complete sets of electrical installations with AC and DC voltages below 1000V.

[0003] In low-voltage distribution cabinets, the frame is usually composed of multiple metal profiles to strengthen support and install electrical components. The frame is usually assembled and fixed by welding.

[0004] For example, the prior art Chinese patent publication number "CN213151257U" provides a low-voltage distribution cabinet frame structure, including vertical steel, longitudinal steel and horizontal steel. The top and bottom of one side are provided with multiple sets of tenon grooves, and the two sides of the tenon grooves are provided with tenon holes. The top of the tenon groove is provided with a through hole, and the inside of the through hole is provided with a bolt. Both ends of the longitudinal steel are fixed with multiple sets of fixing blocks that cooperate with the tenon grooves.

[0005] The device works by inserting a fixing block into a mortise, making the mortise hole and the mating mortise hole on the fixing block communicate. Then, a limiting post is inserted into the mortise hole and the mating mortise hole, so that the limiting post fixes the fixing block in the mortise. Then, with the fixing of bolts and threaded holes, the vertical steel, horizontal steel and longitudinal steel are further fixed, making the frame more stable. Moreover, by using the vertical steel, horizontal steel and longitudinal steel to fix each other, the frame formed by the vertical steel, horizontal steel and longitudinal steel is the same length as the vertical, horizontal and longitudinal length of the inside of the distribution cabinet, which plays a supporting role for the inside of the distribution cabinet.

[0006] The existing low-voltage distribution cabinet frame structure has relatively fixed connections between frame structures inside the distribution cabinet, which is not convenient for disassembly and assembly of multiple frames. Moreover, when installing electrical components inside the distribution cabinet, the frame structure is relatively fixed, which is not convenient for flexible height adjustment and proper installation of electrical components of different heights and sizes.

[0007] Therefore, a low-voltage distribution cabinet frame structure is proposed. Utility Model Content

[0008] The purpose of this utility model is to solve the shortcomings of existing frame structures, which have relatively fixed installation, are not convenient for flexible height adjustment, and are not convenient for the reasonable installation of electrical components of different heights and sizes. Therefore, a low-voltage distribution cabinet frame structure is proposed.

[0009] To achieve the above objectives, this utility model provides the following technical solution:

[0010] A low-voltage distribution cabinet frame structure is designed, including a support plate with snap-fit ​​holes on its side. Fixed plates are fixed to the upper and lower ends of the support plate. A connecting plate is connected between the four support plates at the top of the fixed plates. A support frame is installed at the top of the connecting plate. A grid plate is detachably installed between the four support plates. A snap-fit ​​mechanism is provided between the grid plate and the support plate. The snap-fit ​​mechanism includes a snap-fit ​​post, the outer end of which inserts into the snap-fit ​​hole, and the inner end of which is fixed with a spring plate. The spring plate is elastically installed on both sides of the bottom end of the grid plate.

[0011] Furthermore, the support plate is vertically arranged and has an L-shaped cross-section, while the fixing plate is a rectangular plate structure and is horizontally arranged, with a first connecting hole on its surface. The first connecting hole is a threaded hole structure.

[0012] Furthermore, the connecting plate is a rectangular plate structure, with its two ends overlapping the inner side of the fixed plate. The two ends of the connecting plate have second connecting holes, which are aligned vertically with the first connecting holes. The four connecting plates are combined to form a rectangular frame structure.

[0013] Furthermore, a fastening rod passes through the internal threads of the first connecting hole and the second connecting hole. The fastening rod is a threaded rod structure, and a pad is fixed to its top end. The pad abuts against the top end of the connecting plate.

[0014] Furthermore, a mounting post is fixed at the top center of the pad, and a third connecting hole is opened at the outer end of the support frame. The mounting post slides through the third connecting hole. The mounting post is a threaded post structure and is vertically arranged.

[0015] Furthermore, a nut is connected to the top of the surface of the mounting column, and the nut presses against the top of the support frame. The support frame has an X-shaped structure, with a hinged column connected in the middle.

[0016] Furthermore, the grid plate is a rectangular plate structure and is horizontally arranged, with elastic grooves at the bottom of both sides. The elastic groove is a long rectangular groove structure with guide holes at both ends. The snap-fit ​​post slides through the guide holes, and the elastic plate is elastically installed inside the elastic groove and abuts against the inner end of the guide hole.

[0017] Furthermore, a spring is connected to the inner side of the elastic plate and the inner end of the elastic groove. The spring is horizontally arranged. Mounting rods are uniformly fixed inside the elastic groove. The mounting rods are horizontally arranged. Insertion holes are uniformly opened on the surface of the elastic plate. The mounting rods slide through the insertion holes. The mounting rods and the springs are spaced apart.

[0018] The low-voltage distribution cabinet frame structure proposed in this utility model has the following advantages:

[0019] 1. This utility model uses fastening rods and fixing plates to fasten the support plates at the four corners inside the distribution cabinet, which facilitates disassembly and installation. Furthermore, four connecting plates are installed at the upper and lower ends between the four support plates using fastening rods. The upper and lower ends between the four support plates can be tightened and supported by the outer end of the movable support frame, keeping the upper and lower ends of the support plates stable and facilitating the assembly and installation of the frame structure inside the distribution cabinet.

[0020] 2. This utility model features a detachable grid plate installed between four support plates. Electrical components are installed through the grid plate. On both sides of the bottom end of the grid plate, springs push against a spring plate. The spring plate drives the snap-fit ​​pins through guide holes and inserts them into snap-fit ​​holes on the surface of the support plates, thereby snapping the grid plate between the four support plates. In this way, the height of the grid plate can be moved up and down along the support plates according to the height of the electrical components. The snap-fit ​​installation between the snap-fit ​​pins and snap-fit ​​holes allows for flexible installation of electrical components by adjusting the height of the grid plate. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This utility model Figure 1 A schematic diagram of the support plate and support frame;

[0023] Figure 3 This utility model Figure 1 A schematic diagram of the support plate and snap-fit ​​holes;

[0024] Figure 4 This utility model Figure 1 A schematic diagram of the fastening rod and connecting plate;

[0025] Figure 5 This utility model Figure 1 A schematic diagram of the support frame section;

[0026] Figure 6 This utility model Figure 1 A schematic diagram of the grid plate and the snap-fit ​​post;

[0027] Figure 7 This utility model Figure 1 A schematic diagram of the grid panel section;

[0028] Figure 8 This utility model Figure 1 A schematic diagram of the locking pin and spring plate.

[0029] In the diagram: 1. Support plate; 2. Connecting plate; 3. Grid plate; 4. Support frame; 5. Fixing plate; 6. Snap-fit ​​hole; 7. Snap-fit ​​post; 8. Fastening rod; 9. Hinge post; 10. First connecting hole; 11. Mounting post; 12. Nut; 13. Second connecting hole; 14. Pad; 15. Third connecting hole; 16. Elastic groove; 17. Mounting rod; 18. Spring; 19. Guide hole; 20. Insertion hole; 21. Spring plate. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0031] Example 1

[0032] Please see Figures 1 to 8 The diagram shows a low-voltage distribution cabinet frame structure, including a support plate 1, with snap-fit ​​holes 6 on the side of the support plate 1, and fixing plates 5 fixed at the upper and lower ends of the support plate 1. A connecting plate 2 is connected between the four support plates 1 and at the top of the fixing plate 5. A support frame 4 is installed at the top of the connecting plate 2. A grid plate 3 is detachably installed between the four support plates 1, and a snap-fit ​​mechanism is provided between the grid plate 3 and the support plate 1.

[0033] The snap-fit ​​mechanism includes a snap-fit ​​post 7, the outer end of which is inserted into a snap-fit ​​hole 6, and the inner end of which is fixed with a spring plate 21. The spring plate 21 is elastically installed on both sides of the bottom end of the grid plate 3.

[0034] The support plate 1 is vertically set and has an L-shaped cross-section. The fixing plate 5 is a rectangular plate and is set horizontally. The surface of the fixing plate has a first connecting hole 10, which is a threaded hole.

[0035] The connecting plate 2 is a rectangular plate structure, with its two ends overlapping the inner side of the fixing plate 5. The two ends of the connecting plate 2 have second connecting holes 13, which are aligned vertically with the first connecting holes 10. The four connecting plates 2 are combined to form a rectangular frame structure.

[0036] The internal threads of the first connecting hole 10 and the second connecting hole 13 pass through a fastening rod 8. The fastening rod 8 is a threaded rod structure, and a pad 14 is fixed at its top end. The pad 14 abuts against the top end of the connecting plate 2.

[0037] A mounting post 11 is fixed at the top center of the pad 14. A third connecting hole 15 is opened at the outer end of the support frame 4. The mounting post 11 slides through the third connecting hole 15. The mounting post 11 is a threaded post structure and is set vertically.

[0038] A nut 12 is connected to the top of the surface of the mounting column 11. The nut 12 presses against the top of the support frame 4. The support frame 4 has an X-shaped structure, with a hinged column 9 connected in the middle.

[0039] The support plates 1 are fastened to the four corners inside the distribution cabinet by fastening rods 8 and fixing plates 5, which facilitates disassembly and installation. Furthermore, four connecting plates 2 are installed at the upper and lower ends between the four support plates 1 by fastening rods 8, and the upper and lower ends between the four support plates 1 can be tightened and supported by the outer end of the movable support frame 4, so as to keep the upper and lower ends of the support plates 1 stable and facilitate the assembly and installation of the frame structure inside the distribution cabinet.

[0040] Example 2

[0041] Please see Figures 1 to 8 The diagram shows a low-voltage distribution cabinet frame structure, including a support plate 1, with snap-fit ​​holes 6 on the side of the support plate 1, and fixing plates 5 fixed at the upper and lower ends of the support plate 1. A connecting plate 2 is connected between the four support plates 1 and at the top of the fixing plate 5. A support frame 4 is installed at the top of the connecting plate 2. A grid plate 3 is detachably installed between the four support plates 1, and a snap-fit ​​mechanism is provided between the grid plate 3 and the support plate 1.

[0042] The snap-fit ​​mechanism includes a snap-fit ​​post 7, the outer end of which is inserted into a snap-fit ​​hole 6, and the inner end of which is fixed with a spring plate 21. The spring plate 21 is elastically installed on both sides of the bottom end of the grid plate 3.

[0043] The grid plate 3 is a rectangular plate structure and is set horizontally. It has elastic grooves 16 at the bottom of both sides. The elastic grooves 16 are long rectangular groove structures with guide holes 19 on the outer sides of both ends. The locking post 7 slides through the guide holes 19. The elastic plate 21 is elastically installed inside the elastic groove 16 and abuts against the inner end of the guide hole 19.

[0044] A spring 18 is connected to the inner side of the spring plate 21 and the inner end of the elastic groove 16. The spring 18 is horizontally set. Mounting rods 17 are evenly fixed inside the elastic groove 16. The mounting rods 17 are horizontally set. Insertion holes 20 are evenly opened on the surface of the spring plate 21. The mounting rods 17 slide through the insertion holes 20. The mounting rods 17 and the spring 18 are spaced apart.

[0045] The spring 18 pushes the spring plate 21, which in turn drives the snap-fit ​​pin 7 through the guide hole 19 and into the snap-fit ​​hole 6 on the surface of the support plate 1, thereby snapping the grid plate 3 between the four support plates 1. In this way, the height of the grid plate 3 can be moved up and down along the support plate 1 according to the height of the electrical components, and the height of the grid plate 3 can be adjusted by snapping the snap-fit ​​pin 7 and the snap-fit ​​hole 6 to flexibly install the electrical components.

[0046] Working method: The support plates 1 are fastened and installed at the four corners inside the distribution cabinet by fastening rods 8 and fixing plates 5, which facilitates disassembly and installation. Moreover, four connecting plates 2 are installed at the upper and lower ends between the four support plates 1 by fastening rods 8, and the upper and lower ends between the four support plates 1 can be tightened and supported by the outer end of the movable support frame 4, so as to keep the upper and lower ends of the support plates 1 stable and facilitate the assembly and installation of the frame structure inside the distribution cabinet.

[0047] A grid plate 3 can be detachably installed between four support plates 1. Electrical components are installed through the grid plate 3. At the bottom of the grid plate 3, springs 18 push the spring plate 21. The spring plate 21 drives the snap-fit ​​post 7 to pass through the guide hole 19 and insert into the snap-fit ​​hole 6 on the surface of the support plate 1, thereby snapping the grid plate 3 between the four support plates 1. In this way, the height of the grid plate 3 can be moved up and down along the support plate 1 according to the height of the electrical components. The snap-fit ​​installation between the snap-fit ​​post 7 and the snap-fit ​​hole 6 allows for flexible installation of electrical components by adjusting the height of the grid plate 3.

[0048] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A low voltage switchgear skeleton structure comprising support plates (1), characterized in that: The side of the support plate (1) has a snap-fit ​​hole (6), and the upper and lower ends of the support plate (1) are fixed with a fixing plate (5). A connecting plate (2) is connected between the four support plates (1) and at the top of the fixing plate (5). A support frame (4) is installed at the top of the connecting plate (2). A grid plate (3) is detachably installed between the four support plates (1). A snap-fit ​​mechanism is provided between the grid plate (3) and the support plate (1). The snap-fit ​​mechanism includes a snap-fit ​​post (7), the outer end of which is inserted into the snap-fit ​​hole (6), and the inner end of which is fixed with a spring plate (21). The spring plate (21) is elastically installed on both sides of the bottom end of the grid plate (3).

2. A low voltage switchgear framework structure according to claim 1, characterized in that: The support plate (1) is vertically arranged and has an L-shaped cross-section. The fixing plate (5) is a rectangular plate structure and is horizontally arranged. A first connecting hole (10) is opened on its surface. The first connecting hole (10) is a threaded hole structure.

3. The low-voltage distribution cabinet frame structure according to claim 2, characterized in that: The connecting plate (2) is a rectangular plate structure, with its two ends overlapping the inner side of the fixing plate (5). The two ends of the connecting plate (2) have second connecting holes (13), which are aligned vertically with the first connecting hole (10). The four connecting plates (2) are combined to form a rectangular frame structure.

4. A low voltage switchgear framework structure according to claim 3, characterized in that: The internal threads of the first connecting hole (10) and the second connecting hole (13) are threaded through a fastening rod (8). The fastening rod (8) is a threaded rod structure, and a pad (14) is fixed at its top end. The pad (14) abuts against the top end of the connecting plate (2).

5. A low voltage switchgear framework structure according to claim 4, characterized in that: The top center of the pad (14) is fixed with a mounting post (11), and the outer end of the support frame (4) is provided with a third connecting hole (15). The mounting post (11) slides through the third connecting hole (15). The mounting post (11) is a threaded post structure and is vertically arranged.

6. A low voltage switchgear framework structure according to claim 5, characterized in that: The top of the mounting column (11) is connected to a nut (12), which presses against the top of the support frame (4). The support frame (4) has an X-shaped structure with a hinge column (9) connected in the middle.

7. A low voltage switchgear framework structure as claimed in claim 1, wherein: The grid plate (3) is a rectangular plate structure and is horizontally arranged. It has elastic grooves (16) at the bottom of both sides. The elastic groove (16) is a long rectangular groove structure with guide holes (19) on the outer sides of both ends. The snap-fit ​​post (7) slides through the guide hole (19). The elastic plate (21) is elastically installed inside the elastic groove (16) and abuts against the inner end of the guide hole (19).

8. A low voltage switchgear framework structure according to claim 7, characterized in that: A spring (18) is connected to the inner side of the elastic plate (21) and the inner end of the elastic groove (16). The spring (18) is horizontally arranged. An installation rod (17) is uniformly fixed inside the elastic groove (16). The installation rod (17) is horizontally arranged. Insertion holes (20) are uniformly opened on the surface of the elastic plate (21). The installation rod (17) slides through the insertion hole (20). The installation rod (17) and the spring (18) are spaced apart.

Citation Information

Patent Citations

  • Framework structure of low-voltage power distribution cabinet

    CN213151257U