Distribution box structure
By using an arc-shaped mounting part and elastic locking limit components in the distribution box, combined with positioning strips and buckle blocks, the problems of inconvenient operation and insufficient protection caused by the simple structure of traditional distribution boxes are solved, and more stable and safer box cover opening and closing is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG DEMENG INTELLIGENT TECH CO LTD
- Filing Date
- 2025-06-05
- Publication Date
- 2026-05-12
AI Technical Summary
Traditional distribution boxes have a simple structure, but the freely movable cover hinders operation and is easily damaged, bent, or deformed, affecting opening and closing and the safety of electrical components.
Design a distribution box structure that uses an arc-shaped mounting part and elastic locking limit components, combined with positioning strips and buckle blocks, to achieve stable positioning and protection of the box cover, thereby enhancing protection and insulation.
It improves the protection and insulation of the distribution box, reduces the occurrence of loose or stuck box covers, protects the internal electrical components, and enhances the stability and safety of operation.
Smart Images

Figure CN224233185U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a distribution box, and more particularly to a distribution box structure. Background Technology
[0002] Distribution boxes are electrical equipment characterized by their small size, easy installation, unique technical performance, fixed location, unique configuration functions, lack of site restrictions, widespread application, stable and reliable operation, high space utilization, small footprint, and environmental benefits. The numerous parameters displayed in distribution box data generally describe the electrical wiring of low-voltage circuits, requiring the assembly of switching equipment, measuring instruments, protective electrical devices, and auxiliary equipment in enclosed or semi-enclosed metal cabinets or panels to form a low-voltage distribution box. During normal operation, circuits can be connected or disconnected manually or automatically. Traditional distribution boxes have a relatively simple structure, and the free movement of the box cover can hinder personnel operation or construction to some extent. Furthermore, the box cover is easily damaged, bent, or deformed, affecting subsequent opening and closing or directly damaging the internal electrical components. There is a lack of products with a refined and user-friendly design and improved structural protection. Utility Model Content
[0003] In view of the shortcomings of existing technology, this utility model provides a distribution box structure.
[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a distribution box structure, including a box body and a movable box cover, the box body having a compartment and an open opening, the box body having an operating surface facing the direction of personnel operation, the operating surface having an installation groove near the opening that connects to the compartment, the box cover having an installation part passing through the installation groove and fitting onto the outer edge of the opening, the installation part having an arc-shaped structure, the inner wall of the compartment having a limiting member that elastically locks and limits the installation part, the compartment having positioning strips on opposite sides of the opening, the positioning strips having positioning grooves and snap-fit blocks at the bottom of the positioning grooves, the box cover also having a main body connected to the installation part, the main body being connected to both ends of the installation part respectively, the main body being parallel and spaced apart, the main body of the box cover near the opening having a snap-fit surface corresponding to the positioning strip, the snap-fit surface being snapped and limited between the snap-fit block, the box body also having a hinged connecting and suspended stop strip that prevents the box cover from flipping.
[0005] The limiting member is a metal sheet with a bending angle greater than or equal to 120 degrees. The limiting member has a limiting point on the inner side of at least one end. The mounting part has a limiting groove on the outer side wall corresponding to the limiting point. The limiting point and the limiting groove are elastically engaged by the limiting member.
[0006] The limiting point is a hemispherical structure, and the limiting groove is an arc surface structure with a central angle greater than 90 degrees.
[0007] The fastening surface is an arc surface that protrudes into the compartment, and the fastening surface is provided with a corresponding recessed groove for the fastening block, and the recessed groove and the fastening block are fastened together.
[0008] The positioning groove is an inwardly recessed arc surface that mates with the fastening surface.
[0009] The limiting groove is provided in at least two positions, and the limiting groove covers two positions corresponding to the opening and closing states of the box cover.
[0010] The mounting groove wall is provided with a damping sleeve.
[0011] The lid also has a closed part that connects the two main parts, and the mounting part, the main parts and the closed part form a hollow inner cavity.
[0012] The projection of the closed part onto the operating surface is a concave shape.
[0013] The lid is provided with an opening and closing groove, which has an L-shaped structure and is rounded at the right-angle turn.
[0014] The beneficial effects of this utility model are as follows: The distribution box structure provided by this utility model adopts a box cover and box body connection structure with a larger contact surface, and with the help of elastic snap-fit to realize at least one opening and closing position adjustment, as well as a special protective positioning strip, which fully protects the internal electrical components, enhances protection, and also indirectly increases the air isolation layer, improves insulation, and prevents creepage hazards. Attached Figure Description
[0015] Figure 1 This is a front view structural diagram of the present utility model;
[0016] Figure 2 This is a partial top view of the structure of this utility model;
[0017] Figure 3 This is a schematic diagram of the closed part structure of this utility model. Detailed Implementation
[0018] like Figures 1-3As shown, a distribution box structure includes a box body 1 and a movable cover 2. The box body 1 has a compartment and an open opening 3. The box body 1 has an operating surface 4 facing the direction of personnel operation. The operating surface 4 has a mounting groove 5 near the opening 3 that connects to the compartment. The cover 2 has a mounting part 6 that passes through the mounting groove 5 and fits around the outer edge of the opening 3. The mounting part 6 has an arc-shaped structure. This structural design of the mounting part 6 facilitates rotation, and the design of the limiting member 8 facilitates gear adjustment. In this embodiment, it has both opening and closing positioning functions, but it is by no means limited to this. The arc-shaped structure also facilitates rotation and reduces friction loss. At the same time, it reduces other hinged accessories and reduces interference from factors such as loosening and jamming. During production, the sheet metal can be directly bent and fine-tuned without requiring extremely high precision. The box body 1 is also provided with a hinged connecting and suspended stop bar 7 that prevents the cover 2 from flipping. It hangs naturally on the outside of the cover 2 to prevent accidental opening if not fully closed.
[0019] The inner wall of the compartment is provided with a limiting member 8 that is elastically locked and limited by the mounting part 6. Positioning strips 9 are also provided on opposite sides of the compartment opening 3. Each positioning strip 9 has a positioning groove 10 and a snap-fit block 11 at the bottom of the positioning groove 10. The main body 12 of the box cover 2 near the compartment opening 3 has a corresponding snap-fit surface 13 for the positioning strip 9. The snap-fit surface 13 and the snap-fit block 11 are snapped together for limiting the position. This snap-fit provides auxiliary fixation. The design of the positioning strip 9 also enhances protection and increases impact resistance, especially for the location of the main control electrical components.
[0020] The cover 2 also has a main body 12 connected to the mounting part 6. The main body 12 is connected to both ends of the mounting part 6. The main body 12 is parallel to each other and has a gap. The main body 12 is equivalent to a double setting. Under the action of external force, the outer main body 12 will bend and deform first, which is also more conducive to protecting the inner main body 12.
[0021] The limiting member 8 is a metal sheet with a bending angle greater than or equal to 120 degrees. At least one end of the limiting member 8 has a limiting point 14 on its inner side. The mounting part 6 has a limiting groove 15 on its outer sidewall corresponding to the limiting point 14. The limiting point 14 and the limiting groove 15 are elastically engaged by the limiting member 8. This is a simple structural design; the elastic engagement of the metal sheet itself is sufficient for positioning. Even after prolonged use, if the elastic restoring force changes, the limiting member 8 can be reprocessed using tools to adapt it. Further details and limitations are not provided here. The angle design of the limiting member 8 facilitates adjustment using tools after opening the cover 2 and also improves contact with the mounting part 6. In terms of specific point design, it can be set at one end of the limiting member 8 as needed. Further details and limitations are not provided here. The limiting point 14 is a hemispherical structure, and the limiting groove 15 is an arc-shaped structure with a central angle greater than 90 degrees. The shape of the limiting point 14 facilitates contact and disengagement, requiring only sufficient external force and is also easy to process through spot welding or other methods.
[0022] The fastening surface 13 is an arc-shaped surface protruding into the compartment. The fastening surface 13 also has a corresponding recessed groove 16 for the latching block 11, which engages with the latching block 11. During manufacturing, the lid 2 can be made of sheet material or plate material using localized die-casting or other processes. The arc-shaped surface or recessed groove 16 design improves the positioning effect at this location; for example, the opening of the recessed groove 16 is slightly smaller than the latching block 11, thus improving usability. The positioning groove 10 is an arc-shaped surface that engages with the fastening surface 13 and is recessed inwards. Continuous and repetitive curved surfaces also enhance the structural strength and improve the protective effect.
[0023] The limiting groove 15 is provided with at least two, and the limiting groove 15 covers two positions corresponding to the opening and closing states of the cover 2, that is, a multi-point stop design. Under normal circumstances, this is not necessary; this is only an extended description to cover a specific process. The mounting groove 5 is provided with a damping sleeve 17 on its groove wall to increase a certain degree of sealing and damping effect. Slow opening and closing is beneficial to safe operation.
[0024] The lid 2 also has a closing part 18 connecting the two main body parts 12. The mounting part 6, the main body part 12, and the closing part 18 form a hollow inner cavity. This forms a relatively insulating air layer, improving safety protection and isolation, and also serving as a buffer zone against impacts. The projection of the closing part 18 onto the operating surface 4 is a U-shaped structure. This is not just planar reinforcement, but three-dimensional structural reinforcement, especially at the outward-facing end of the lid 2 when it is opened. The lid 2 is provided with an opening and closing groove 19, which has an L-shaped structure. The opening and closing groove 19 also has a rounded corner at the right angle. The design of the opening and closing groove 19 is a common design and also simplifies the structure.
[0025] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. At the same time, the basic principles, main features, and advantages of this utility model have been shown and described above, which should be understood by those skilled in the art.
Claims
1. A distribution box structure, comprising a box body and a movable box cover, wherein the box body has a compartment and an open opening, characterized in that, The box body has an operating surface facing the direction of personnel operation. The operating surface has an installation groove near the opening that connects to the compartment. The box cover has an installation part that passes through the installation groove and fits onto the outer edge of the opening. The installation part has an arc-shaped structure. The inner wall of the compartment has a limiting member that elastically locks and limits the installation part. The compartment also has positioning strips on opposite sides of the opening. The positioning strips have positioning grooves and snap-fit blocks at the bottom of the positioning grooves. The box cover also has a main body connected to the installation part. The main body is connected to both ends of the installation part. The main body is parallel to each other and spaced apart. The main body of the box cover near the opening has a snap-fit surface corresponding to the positioning strip. The snap-fit surface and the snap-fit block snap-fit and limit the movement. The box body also has a hinged baffle that hangs and prevents the box cover from flipping.
2. The distribution box structure as described in claim 1, characterized in that, The limiting member is a metal sheet with a bending angle greater than or equal to 120 degrees. The limiting member has a limiting point on the inner side of at least one end. The mounting part has a limiting groove on the outer side wall corresponding to the limiting point. The limiting point and the limiting groove are elastically engaged by the limiting member.
3. The distribution box structure as described in claim 2, characterized in that, The limiting point is a hemispherical structure, and the limiting groove is an arc surface structure with a central angle greater than 90 degrees.
4. A distribution box structure as described in claim 1, 2, or 3, characterized in that, The fastening surface is an arc surface that protrudes into the compartment, and the fastening surface is provided with a corresponding recessed groove for the fastening block, and the recessed groove and the fastening block are fastened together.
5. The distribution box structure as described in claim 4, characterized in that, The positioning groove is an inwardly recessed arc surface that mates with the fastening surface.
6. The distribution box structure as described in claim 3, characterized in that, The limiting groove is provided in at least two positions, and the limiting groove covers two positions corresponding to the opening and closing states of the box cover.
7. The distribution box structure as described in claim 1, characterized in that, The mounting groove wall is provided with a damping sleeve.
8. The distribution box structure as described in claim 1, characterized in that, The lid also has a closed part that connects the two main parts, and the mounting part, the main parts and the closed part form a hollow inner cavity.
9. A distribution box structure as described in claim 8, characterized in that, The projection of the closed part onto the operating surface is a concave shape.
10. The distribution box structure as described in claim 1, characterized in that, The lid is provided with an opening and closing groove, which has an L-shaped structure and is rounded at the right-angle turn.