Improved power distribution cabinet installation structure
By introducing a quick-installation mechanism into the distribution cabinet, and using components such as T-shaped shafts, rotating sleeves, and limiting protrusions, tool-free installation of the cabinet body, base, and top cover is achieved. This solves the problems of high workload and low efficiency caused by the use of tools in existing technologies, and improves the convenience and efficiency of installation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 杜红亚
- Filing Date
- 2025-02-28
- Publication Date
- 2026-04-24
AI Technical Summary
The existing power distribution cabinet installation structure requires tools, which increases the workload and difficulty for operators and reduces installation efficiency and convenience.
The quick-assembly mechanism, including a T-shaped shaft, rotating sleeve, limiting protrusion, limiting insertion hole, horizontal slide rail, and anti-deviation slider, enables tool-free quick assembly between the cabinet, base, and top cover. Stable fixation is achieved through the cooperation of the limiting protrusion and locking components.
This reduces the installation workload and difficulty for operators, and improves the installation efficiency and convenience of the distribution cabinet.
Smart Images

Figure CN224164516U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of power distribution cabinet structure technology, and in particular to an improved power distribution cabinet installation structure. Background Technology
[0002] Low-voltage switchgear is a product used for converting and configuring electrical energy. It is used in power distribution systems with a rated current of 50Hz AC and a rated voltage of 380V for power, lighting, and distribution energy conversion and control. This product features strong breaking capacity, good dynamic and thermal stability, flexible electrical schemes, convenient combination, strong series compatibility and practicality, and novel structure.
[0003] like Figure 4 As shown, this is the installation structure of the previous generation of distribution cabinets. The base and top cover are fixed to the cabinet body by a combination of multiple sets of studs and hexagonal nuts. When assembling the distribution cabinet with this structure, operators need to use tools. Due to the limited space inside the cabinet, it is easy for operators to cause movement interference when using tools to reach into the cabinet. This not only increases the workload and difficulty of the actual assembly of the distribution cabinet, but also reduces the efficiency and convenience of the distribution cabinet installation.
[0004] In view of this, it is particularly important to design and manufacture a power distribution cabinet installation structure that enables tool-free and quick installation between the cabinet body, base and top cover, and to apply it in the actual combination and installation operation of power distribution cabinets. Utility Model Content
[0005] The purpose of this utility model is to solve the problem that the previous generation of power distribution cabinet installation structure, which used studs and hexagonal nuts, required tools to be used during the combination and installation of the power distribution cabinet, thus increasing the workload and difficulty of the actual installation operation. Therefore, an improved power distribution cabinet installation structure is proposed.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] An improved power distribution cabinet installation structure includes a cabinet body, a base located at the lower end of the cabinet body, a top cover located at the upper end of the cabinet body, and a cabinet door rotatably installed at the front end of the cabinet body. A quick-assembly mechanism for tool-free quick assembly and fixation of the cabinet body to the base and the top cover is provided between the lower end of the cabinet body and the upper end of the base, and between the upper end of the cabinet body and the lower end of the top cover.
[0008] As a further description of the above technical solution:
[0009] The quick-installation mechanism includes a T-shaped shaft fixed at the four corners of the upper end of the base and the four corners of the lower end of the top cover, a rotating sleeve rotatably mounted on the T-shaped shaft and passing through the upper and lower ends of the cabinet, two limiting protrusions symmetrically fixed outside the rotating sleeve, and limiting insertion holes opened at the upper and lower ends of the cabinet and matching the rotating sleeve and the two limiting protrusions.
[0010] As a further description of the above technical solution:
[0011] A locking part for preventing the upper limit protrusion of the rotating sleeve from deflecting is provided between the upper end of the base and the lower end of the cabinet, and between the lower end of the top cover and the upper end of the cabinet.
[0012] As a further description of the above technical solution:
[0013] The locking part includes a horizontal slide rail fixed at the four corners of the upper end of the base and the four corners of the lower end of the top cover and facing the rotating sleeve, an anti-deviation slider movably installed inside the horizontal slide rail and facing the rotating sleeve, and a limiting groove formed on the anti-deviation slider for accommodating the limiting protrusion.
[0014] As a further description of the above technical solution:
[0015] A helical compression spring is installed between the horizontal slide rail and the anti-deviation slider, and a gripping hole is provided in the middle of the anti-deviation slider.
[0016] As a further description of the above technical solution:
[0017] Positioning cones that penetrate the cabinet are fixedly connected to the upper left and right sides of the base and the lower left and right sides of the top cover. Conical holes corresponding to the positions of the positioning cones are opened at the lower end of the cabinet and on the lower left and right sides.
[0018] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:
[0019] In this utility model, the original power distribution cabinet installation structure has been scientifically and rationally improved. A T-shaped shaft, a rotating sleeve, a limiting protrusion, a limiting insertion hole, a horizontal slide rail, and an anti-deviation slider are set between the base, the top cover, and the cabinet. When the limiting protrusion on the rotating sleeve at the upper end of the base and the lower end of the top cover is adjusted to coincide with the limiting insertion hole on the cabinet, the cabinet can be positioned and fixed between the base and the top cover. After rotating the limiting protrusion on the rotating sleeve by 90°, the limiting groove on the anti-deviation slider can be engaged with the limiting protrusion. At this time, the cabinet is stably assembled and fixed between the base and the top cover. This structure can realize tool-free quick assembly operation between the cabinet, the base, and the top cover, effectively reducing the workload and difficulty of operators in the actual installation of the power distribution cabinet, thereby improving the efficiency and convenience of the actual installation of the power distribution cabinet. Attached Figure Description
[0020] Figure 1 This is a three-dimensional disassembly diagram of an improved power distribution cabinet installation structure proposed in this utility model;
[0021] Figure 2 This is a schematic diagram of the overall assembled structure of this utility model;
[0022] Figure 3 This is a partial sectional view of the cabinet and base in this utility model;
[0023] Figure 4 This is a schematic diagram of the installation structure of the previous generation of distribution cabinets in the existing technology.
[0024] Legend:
[0025] 1. Cabinet body; 101. Limiting insertion hole; 102. Conical hole; 2. Base; 3. Top cover; 4. Cabinet door; 5. T-shaped shaft; 501. Rotary sleeve; 502. Limiting protrusion; 6. Positioning cone; 7. Horizontal slide rail; 8. Anti-deviation slider; 801. Limiting groove; 802. Grip hole; 9. Helical compression spring. Detailed Implementation
[0026] 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 skilled in the art without creative effort are within the protection scope of the present utility model.
[0027] Please see Figure 1-4 This utility model provides a technical solution: an improved power distribution cabinet installation structure, including a cabinet body 1, a base 2 set at the lower end of the cabinet body 1, a top cover 3 set at the upper end of the cabinet body 1, and a cabinet door 4 rotatably installed at the front end of the cabinet body 1. A quick-assembly mechanism for tool-free quick assembly and fixation of the cabinet body 1 to the base 2 and the top cover 3 is provided between the lower end of the cabinet body 1 and the upper end of the base 2, and between the upper end of the cabinet body 1 and the lower end of the top cover 3.
[0028] Specifically, such as Figure 1-3As shown, the quick-installation mechanism includes T-shaped shafts 5 fixed at the four corners of the upper end of the base 2 and the four corners of the lower end of the top cover 3; a rotating sleeve 501 rotatably mounted on the T-shaped shafts 5 and passing through the upper and lower ends of the cabinet 1; two limiting protrusions 502 symmetrically fixed to the outside of the rotating sleeve 501; and limiting insertion holes 101 opened at the upper and lower ends of the cabinet 1 and matching the rotating sleeve 501 and the two limiting protrusions 502. A locking part is provided between the upper limit protrusion 502 of the rotating sleeve 501 and between the lower end of the top cover 3 and the upper end of the cabinet 1 to prevent the rotation of the upper limit protrusion 502. When the rotating sleeve 501 and the two limit protrusions 502 pass through the limit insertion hole 101, the two limit protrusions 502 are rotated and adjusted to intersect with the limit insertion hole 101, which can restrict the degree of freedom of the cabinet 1 in the Z-axis direction between the base 2 and the top cover 3, thereby locking the cabinet 1 between the base 2 and the top cover 3.
[0029] Specifically, such as Figure 1-3 As shown, the locking part includes a horizontal slide rail 7 fixed at the four corners of the upper end of the base 2 and the four corners of the lower end of the top cover 3 and facing the rotating sleeve 501, an anti-deviation slider 8 movably installed inside the horizontal slide rail 7 and facing the rotating sleeve 501, and a limiting groove 801 opened on the anti-deviation slider 8 for accommodating the limiting protrusion 502. When the limiting groove 801 on the anti-deviation slider 8 is adjusted and slid into the limiting protrusion 502 on the rotating sleeve 501, the deflection of the rotating sleeve 501 on the T-shaped shaft 5 can be restricted, thereby preventing the limiting protrusion 502 on the rotating sleeve 501 from being accidentally rotated under force to coincide with the limiting insertion hole 101 on the cabinet 1, thereby improving the stability of the cabinet 1, the base 2 and the top cover 3 after assembly.
[0030] A spiral compression spring 9 is installed between the horizontal slide rail 7 and the anti-deviation slider 8. Under normal conditions, the anti-deviation slider 8 generates an elastic compression force in the direction of the rotating sleeve 501, which allows the limiting groove 801 on the anti-deviation slider 8 to be continuously and stably engaged with the limiting protrusion 502 on the rotating sleeve 501. A gripping hole 802 is provided in the middle of the anti-deviation slider 8, which is convenient for the operator to grip and slide the anti-deviation slider 8.
[0031] Specifically, such as Figure 1-3 As shown, positioning cones 6 that penetrate the cabinet 1 are fixedly connected to the upper left and right sides of the base 2 and the lower left and right sides of the top cover 3. Conical holes 102 corresponding to the positions of the positioning cones 6 are opened at the lower end and the lower left and right sides of the cabinet 1. The setting of the conical holes 102 and the positioning cones 6 facilitates the positioning and installation operation between the cabinet 1, the base 2 and the top cover 3, and facilitates the positioning of the rotating sleeve 501 and the limiting protrusion 502 through the limiting insertion hole 101 on the cabinet 1, thereby improving the convenience and installation accuracy of the power distribution cabinet assembly and installation operation. On the other hand, it improves the effect of restricting the X-axis and Y-axis degrees of freedom after the cabinet 1, the base 2 and the top cover 3 are assembled.
[0032] Working principle: When using the distribution cabinet, the first step is to hold and rotate the rotating sleeve 501 on the base 2 and the top cover 3, and rotate the limiting protrusion 502 on the rotating sleeve 501 to coincide with the limiting insertion hole 101 on the cabinet body 1. The second step is to align the tapered hole 102 at the lower end of the cabinet body 1 with and insert it into the positioning cone 6 on the base 2. Then, the lower door hinge of the cabinet door 4 can be inserted into the base 2. The third step is to position and fasten the top cover 3 between the upper end of the cabinet body 1 and the cabinet door 4. Fourth step, rotate the rotating sleeve 501 90°. At this time, the limiting protrusion 502 can be rotated and adjusted to abut against the inner wall of the lower or upper end of the cabinet 1. At this time, the cabinet 1 is initially fixed between the base 2 and the top cover 3. Finally, the limiting groove 801 on the anti-deviation slider 8 on the base 2 and the top cover 3 is positioned and fastened to the limiting protrusion 502 on the rotating sleeve 501. This can perform anti-deviation locking treatment on the entire rotating sleeve 501, thus completing the tool-free quick assembly operation between the cabinet 1, the base 2 and the top cover 3.
[0033] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. An improved power distribution cabinet mounting structure, comprising a cabinet body (1), a base (2) arranged at the lower end of the cabinet body (1), a top cover (3) arranged at the upper end of the cabinet body (1), and a cabinet door (4) rotatably mounted at the front end of the cabinet body (1), characterized in that, A quick-assembly mechanism is provided between the lower end of the cabinet (1) and the upper end of the base (2), and between the upper end of the cabinet (1) and the lower end of the top cover (3) for tool-free quick assembly and fixation of the cabinet (1) to the base (2) and the top cover (3).
2. The improved power distribution cabinet mounting structure according to claim 1, wherein, The quick-installation mechanism includes a T-shaped shaft (5) fixed at the four corners of the upper end of the base (2) and the four corners of the lower end of the top cover (3), a rotating sleeve (501) rotatably mounted on the T-shaped shaft (5) and passing through the upper and lower ends of the cabinet (1), two limiting protrusions (502) symmetrically fixed outside the rotating sleeve (501), and limiting insertion holes (101) opened at the upper and lower ends of the cabinet (1) and matching the rotating sleeve (501) and the two limiting protrusions (502).
3. The improved power distribution cabinet mounting structure according to claim 2, wherein, A locking part for preventing the upper limit protrusion (502) of the rotating sleeve (501) from deflection is provided between the upper end of the base (2) and the lower end of the cabinet (1) and between the lower end of the top cover (3) and the upper end of the cabinet (1).
4. The improved power distribution cabinet mounting structure according to claim 3, wherein, The locking part includes a horizontal slide rail (7) fixed at the four corners of the upper end of the base (2) and the four corners of the lower end of the top cover (3) and facing the rotating sleeve (501), an anti-deviation slider (8) movably installed inside the horizontal slide rail (7) and facing the rotating sleeve (501), and a limiting groove (801) opened on the anti-deviation slider (8) for accommodating the limiting protrusion (502).
5. The improved power distribution cabinet mounting structure according to claim 4, wherein, A helical compression spring (9) is installed between the horizontal slide rail (7) and the anti-deviation slider (8), and a gripping hole (802) is provided in the middle of the anti-deviation slider (8).
6. The improved power distribution cabinet mounting structure according to claim 1, wherein The upper left and right sides of the base (2) and the lower left and right sides of the top cover (3) are fixedly connected with positioning cones (6) that penetrate the cabinet (1). The lower end of the cabinet (1) and the lower left and right sides are provided with conical holes (102) corresponding to the positions of the positioning cones (6).