A wall-mounted multi-functional instrument box
By designing a wall-mounted multi-functional instrument box and using mounting brackets and hollow metal flexible hoses to connect the circuits, the problem of space limitation in the ring main unit was solved, and the addition of components and the convenience of observation and operation were realized.
Patent Information
- Application Number
- CN202522279511.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-28
- Publication Date
- 2026-11-06
- Estimated Expiration
- 2035-10-28
AI Technical Summary
Standardized ring main units cannot accommodate more intelligent components within limited space, especially in prefabricated substations where height requirements are stringent, making them unsuitable for practical engineering needs.
Design a wall-mounted multi-functional instrument box. It is connected to the ring main unit via a mounting bracket and the circuit is connected using hollow metal flexible tubing, thus realizing the wall-mounted installation of the instrument box and increasing the space for component storage.
The wall-mounted instrument box design increases the component capacity of the ring main unit, meeting actual engineering needs and facilitating observation and operation.
Smart Images

Figure CN224947175U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of power equipment, specifically to a wall-mounted multi-functional instrument box. Background Technology
[0002] As the demands of the new energy economy on urban power systems continue to increase, some aging power distribution systems urgently need upgrading. Ring main units (RMMs), with their advantages of standardization, flexible use, convenient installation, high cost-effectiveness, and small size, are gradually playing an important role in the renovation and upgrading of power distribution facilities. However, due to limitations in the size of old substations or distribution rooms, or the owner's requirements for intelligence, standardized RMMs cannot accommodate more intelligent components within the specified space. This is especially true when replacing RMMs in some prefabricated substations, where the height requirements for the RMMs are extremely stringent.
[0003] Therefore, a wall-mounted multi-functional instrument box was developed and designed. Utility Model Content
[0004] In order to overcome the above-mentioned defects of the prior art, the purpose of this utility model is to provide a wall-mounted multi-functional instrument box.
[0005] To achieve the purpose of this utility model, the technical solution adopted is as follows: A wall-mounted multi-functional instrument box, comprising: An instrument box body, the bottom of which is provided with a mounting bracket, which is fixed to the sealing plate of the instrument compartment of the ring main unit by fasteners; The top plate of the instrument box body is provided with several first mounting holes; The top plate of the instrument compartment of the ring main unit is provided with several second mounting holes; The circuit connecting the instrument box body to the instrument compartment of the ring main unit is connected by a hollow metal flexible tube passing through the first mounting hole and the second mounting hole.
[0006] In a preferred embodiment of this utility model, the instrument box body is mounted on the inner wall of the power distribution room via a mounting bracket.
[0007] In a preferred embodiment of the present invention, the mounting bracket is provided with a plurality of third mounting holes.
[0008] In a preferred embodiment of this utility model, the diameter of the first mounting hole is 20-22 mm.
[0009] In a preferred embodiment of this utility model, the diameter of the second mounting hole is 20-22 mm.
[0010] In a preferred embodiment of this invention, the diameter of the third mounting hole is 9-11 mm. Preferably, the diameter of the third mounting hole is 10 mm.
[0011] In a preferred embodiment of this utility model, the dimensions of the instrument compartment of the ring main unit are 420mm×280mm×350mm.
[0012] The beneficial effects of this utility model are as follows: This invention allows for convenient observation and operation by mounting a wall-mounted instrument box on the wall of the power distribution room. By adding the wall-mounted instrument box, the ring main unit can accommodate additional components, and its height is increased, greatly meeting the needs of practical engineering projects. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the structure of this utility model.
[0014] Figure 2 This is a schematic diagram of the installation of this utility model. Detailed Implementation
[0015] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. However, it should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit its scope. Furthermore, in the following descriptions, well-known structures and technologies have been omitted to avoid unnecessary confusion regarding the concept of this utility model.
[0016] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, terms such as "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0017] Currently, the standard instrument compartment size of a ring main unit is 420mm × 280mm × 350mm (width × depth × height). Due to the limitations of on-site installation space and the structure of the ring main unit itself, it is not possible to accommodate more components by increasing the height or depth of the instrument box. Therefore, if more components are to be installed, an additional instrument box must be added to the side of the ring main unit.
[0018] To overcome the above problems, this utility model discloses a wall-mounted multi-functional instrument box suitable for ring main units. It can be effectively applied to various compact ring main units, such as the DKJ2025-016 12kV compact environmentally friendly ring main unit.
[0019] like Figure 1 Or, as shown in Figure 2, a wall-mounted multi-functional instrument box includes an instrument box body 100, the entire instrument box body 100 being made of metal.
[0020] The bottom of the instrument box body 100 is provided with a mounting bracket 200. The mounting bracket 200 is fixed to the sealing plate 310 of the instrument compartment 300 of the ring main unit by threaded fasteners 210. Alternatively, the instrument box body 100 can be mounted on the inner wall 400 of the power distribution room via the mounting bracket 200 as needed. The mounting bracket 200 is provided with several third mounting holes 201. The diameter of the third mounting holes 201 is 9-11 mm. In this embodiment, the diameter of the third mounting holes 201 is 10 mm.
[0021] like Figure 1 ,pass Figure 1 The instrument compartment 100 body is installed in six 10mm diameter third mounting holes 201. The instrument compartment 100 body is used to accommodate various components. The bottom 102 of the instrument compartment 100 is mounted on the mounting bracket 200.
[0022] Key points combined Figure 2 A number of first mounting holes 1011 are provided on the top plate 101 of the instrument box body 100, and a number of second mounting holes 3011 are provided on the top plate 301 of the instrument room 300 of the ring network cabinet.
[0023] The diameter of the first mounting hole 1011 is 20-22 mm, and in this embodiment, the diameter of the first mounting hole 1011 is 21 mm.
[0024] The diameter of the second mounting hole 3011 is 20-22mm, and in the embodiment, the diameter of the first mounting hole 1011 is 21mm.
[0025] The circuit connecting the instrument box body 100 to the instrument compartment 300 of the ring main unit is connected by a hollow metal flexible tube 400 passing through the first mounting hole 1011 and the second mounting hole 3011.
[0026] The bottom of the wall-mounted instrument box body 100 is fixed to the mounting bracket 200, and the mounting bracket 200 is then connected to the sealing plate 310 of the instrument compartment 300 of the ring main unit by bolts.
[0027] The top of the wall-mounted instrument box body 100 has two first mounting holes 1011 with a diameter of 21mm, which are connected to the top plate 301 of the instrument room 300 of the ring main unit by metal flexible hoses. Several second mounting holes 3011 are provided inside the box body 100, and secondary wiring is run inside.
[0028] Furthermore, extending the flexible metal hose allows for the installation of the wall-mounted instrument box on the wall of the power distribution room, facilitating observation and operation by workers. By adding the wall-mounted instrument box, the ring main unit can accommodate additional components such as batteries and automatic transfer switches, while also increasing its height, greatly meeting the needs of practical engineering projects.
[0029] The above shows and describes the basic principles, main features, and advantages of this utility model.
[0030] Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope. All such changes and modifications fall within the scope of this utility model as defined by the appended claims and their equivalents.
Claims
1. A wall-mounted multi-functional instrument box, characterized in that, include: An instrument box body, the bottom of which is provided with a mounting bracket, which is fixed to the sealing plate of the instrument compartment of the ring main unit by fasteners; The top plate of the instrument box body is provided with several first mounting holes; The top plate of the instrument compartment of the ring main unit is provided with several second mounting holes; The circuit connecting the instrument box body to the instrument compartment of the ring main unit is connected by a hollow metal flexible tube passing through the first mounting hole and the second mounting hole.
2. The wall-mounted multi-functional instrument box as described in claim 1, characterized in that, The instrument box body is mounted on the inner wall of the power distribution room via a mounting bracket.
3. The wall-mounted multi-functional instrument box as described in claim 1, characterized in that, The mounting bracket is provided with several third mounting holes.
4. A wall-mounted multi-functional instrument box as described in claim 1, characterized in that, The diameter of the first mounting hole is 20-22 mm.
5. A wall-mounted multi-functional instrument box as described in claim 1, characterized in that, The diameter of the second mounting hole is 20-22 mm.
6. A wall-mounted multi-functional instrument box as described in claim 3, characterized in that, The diameter of the third mounting hole is 9-11 mm.
7. A wall-mounted multi-functional instrument box as described in claim 1, characterized in that, The dimensions of the instrument compartment of the ring main unit are 420mm×280mm×350mm.
