Power switch mounting structure for modular switch cabinet

Abstract

The utility model relates to the technical field of switch cabinets, in particular to a power switch installation structure for a modular switch cabinet, which comprises a cabinet door, an installation hole site arranged on the cabinet door and a power switch arranged between the cabinet door and the installation hole site, and a rear frame body covering the rear end of the power switch is fixedly connected between the cabinet door and the rear end of the installation hole site. And a front frame body covering the front end of the power switch is movably mounted between the cabinet door and the front end of the mounting hole site. According to the utility model, the original power switch installation structure is scientifically and reasonably improved, and the rear frame body, the transverse slot, the middle sliding sheet, the one-way locking block, the front frame body, the transverse insertion block and the one-way locking groove are arranged between the cabinet door and the installation hole site, so that the power switch can be rapidly installed between the cabinet door and the installation hole site without tools; the workload and difficulty of the installation or disassembly operation of the power switch are effectively reduced, so that the convenience and efficiency of the fixed-point installation in the early stage and the disassembly and maintenance operation in the later stage of the power switch are improved.

Description

Technical Field

[0001] This utility model relates to the field of switchgear technology, and in particular to a power switch installation structure for modular switchgear. Background Technology

[0002] A switchgear is a type of electrical equipment. External power lines first enter the main control switch inside the cabinet, and then enter the branch control switches. Each branch circuit is configured according to its needs. Examples include instruments, automatic control systems, motor magnetic switches, various AC contactors, etc. Some switchgear also have high-voltage and low-voltage compartments, and are equipped with high-voltage busbars, such as in power plants. Some also have underfrequency load shearing features to protect the main equipment.

[0003] like Figure 4 As shown, this is the installation structure of the power switch in the previous generation of switchgear. The power switch is installed and fixed between the cabinet door and the mounting hole by mounting ribs and fasteners. When installing and disassembling the power switch, operators need to use tools. The entire process of installing and disassembling the power switch is labor-intensive and difficult, which is not convenient for the initial fixed-point installation of the power switch and the subsequent disassembly and maintenance operations.

[0004] In view of this, it is particularly important to design and manufacture a power switch installation structure that enables tool-free quick installation and removal of power switches, and improves the convenience and efficiency of power switch installation and removal operations, for application in switch cabinets. Utility Model Content

[0005] The purpose of this utility model is to solve the problem that the installation and removal of power switches in the previous generation of switch cabinets required operators to use tools, and the entire installation and removal process was inconvenient and inefficient. Therefore, a modular power switch installation structure for switch cabinets is proposed.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A modular switch cabinet power switch mounting structure includes a cabinet door, mounting holes on the cabinet door, and a power switch installed between the cabinet door and the mounting holes. A rear frame covering the rear end of the power switch is fixedly connected between the rear end of the cabinet door and the mounting holes. A front frame covering the front end of the power switch is movably installed between the front end of the cabinet door and the mounting holes. A sliding lock mechanism for tool-free limiting and fixing of the power switch between the rear frame and the front frame is provided between the left and right ends of the rear frame and the front frame.

[0008] As a further description of the above technical solution:

[0009] The sliding lock mechanism includes a rear stop block integrally fixed at the four corners of the rear end of the rear frame and abutting against the rear end face of the power switch; a front stop block integrally fixed at the four corners of the front end of the front frame and abutting against the front end face of the power switch; a horizontal insert block symmetrically fixed at the left and right ends of the front stop block and extending backward through the rear frame; a horizontal slot opened at the left and right ends of the rear frame and corresponding to the position of the horizontal insert block; and a spring lock part disposed between the rear frame and the horizontal insert block.

[0010] As a further description of the above technical solution:

[0011] The spring lock includes a central sliding piece integrally fixed to the middle of the left and right ends of the rear frame and located between two horizontal inserts, a one-way lock block symmetrically movable at the upper and lower ends of the central sliding piece and passing through the two horizontal inserts respectively, a folding spring piece installed between the central sliding piece and the one-way lock block, and a one-way lock groove opened on the horizontal insert and corresponding to the one-way lock block.

[0012] As a further description of the above technical solution:

[0013] The end of the one-way locking block facing the central sliding plate is fixedly connected to a handle that bends outward at a right angle.

[0014] As a further description of the above technical solution:

[0015] The power switch has internal threaded holes facing the rear stop block at each of the four corners at its rear end.

[0016] As a further description of the above technical solution:

[0017] The front end of the rear stop is fixedly connected to a limiting post that transitions with the internal threaded hole.

[0018] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0019] In this invention, the original power switch installation structure has been scientifically and rationally improved. A rear frame, a horizontal slot, a central sliding piece, a one-way locking block, a front frame, a horizontal insert block, and a one-way locking groove are set between the cabinet door and the mounting hole. The power switch can be pre-slid backward through the mounting hole into the space between the rear frame and the cabinet door. Then, the front frame is slid backward into the space between the mounting hole and the rear frame. Under the action of the folding spring, the two one-way locking blocks on the central sliding piece can simultaneously spring outward into the one-way locking grooves on the two horizontal insert blocks, thereby wrapping and fixing the power switch in multiple directions between the cabinet door, the rear frame, and the front frame. This structure allows the power switch to be installed quickly and without tools between the cabinet door and the mounting hole, effectively reducing the workload and difficulty of power switch installation or disassembly operations, thereby improving the convenience and efficiency of the initial fixed-point installation and the subsequent disassembly and maintenance operations of the power switch. Attached Figure Description

[0020] Figure 1 This is a simplified structural diagram of a power switch installation structure for a modular switchgear proposed in this utility model;

[0021] Figure 2 This is a three-dimensional right-side view of the disassembled state of this utility model;

[0022] Figure 3 This is a schematic diagram of the structure of the power switch, rear frame, and front frame assembled in this utility model;

[0023] Figure 4 This is a schematic diagram of the power switch installation structure of the previous generation of switchgear in the existing technology.

[0024] Legend:

[0025] 1. Cabinet door; 101. Mounting hole; 2. Power switch; 201. Internal screw hole; 3. Rear frame; 301. Rear stop block; 302. Limiting post; 303. Horizontal slot; 304. Central sliding piece; 305. Folding spring; 306. One-way locking block; 307. Handle; 4. Front frame; 401. Front stop block; 402. Horizontal insertion block; 403. One-way locking groove. 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: a power switch installation structure for a modular switch cabinet, including a cabinet door 1, mounting holes 101 opened on the cabinet door 1, and a power switch 2 installed between the cabinet door 1 and the mounting holes 101. A rear frame 3 covering the rear end of the power switch 2 is fixedly connected between the rear end of the cabinet door 1 and the mounting holes 101. A front frame 4 covering the front end of the power switch 2 is movably installed between the front end of the cabinet door 1 and the mounting holes 101. A sliding lock mechanism for tool-free limiting and fixing of the power switch 2 between the rear frame 3 and the front frame 4 is provided between the left and right ends of the rear frame 3 and the front frame 4.

[0028] Specifically, such as Figure 1-3As shown, the sliding lock mechanism includes a rear stop block 301 integrally fixed at the four corners of the rear end of the rear frame 3 and abutting against the rear end face of the power switch 2; a front stop block 401 integrally fixed at the four corners of the front end of the front frame 4 and abutting against the front end face of the power switch 2; a horizontal insert block 402 symmetrically fixed at the left and right ends of the front stop block 401 and extending backward through the rear frame 3; a horizontal slot 303 opened at the left and right ends of the rear frame 3 and corresponding to the position of the horizontal insert block 402; and a spring lock part disposed between the rear frame 3 and the horizontal insert block 402.

[0029] The spring-loaded locking mechanism includes a central sliding piece 304 integrally fixed to the middle of the left and right ends of the rear frame 3 and located between two horizontal insert blocks 402; a one-way locking block 306 symmetrically movable at the upper and lower ends of the central sliding piece 304 and passing through the two horizontal insert blocks 402 respectively; a folding spring piece 305 installed between the central sliding piece 304 and the one-way locking block 306; and a one-way locking groove 403 opened on the horizontal insert block 402 and corresponding to the one-way locking block 306. Under normal conditions, under the action of the elastic force of the folding spring piece 305, the one-way locking block 306 can always be elastically locked in the one-way locking groove 403, and the horizontal insert block 402 is one-way slid-locked and fixed in the horizontal slot 303.

[0030] Meanwhile, the end of the one-way locking block 306 facing the central sliding plate 304 is fixedly connected to a handle 307 that bends outward at a right angle, which makes it convenient for the operator to hold and press the one-way locking block 306. This allows the one-way locking block 306 to be manually slid inward away from the one-way locking groove 403 on the horizontal insert block 402, thereby realizing the unlocking operation between the rear frame 3 and the front frame 4.

[0031] Specifically, such as Figure 1 and Figure 2 As shown, the four corners at the rear end of the power switch 2 are provided with internal threaded holes 201 facing the rear stop block 301. The front end of the rear stop block 301 is fixedly connected with a limiting post 302 that transitions with the internal threaded hole 201. The internal threaded hole 201 was originally used for the installation and fixing of fasteners. In this application, the limiting post 302 is inserted into the internal threaded hole 201 of the power switch 2 through transitional fitting, so that the power switch 2 can be initially locked and fixed in the rear frame 3, thereby improving the stability of the structure of the power switch 2 installed between the cabinet door 1 and the rear frame 3.

[0032] Working principle: When using the power switch 2, it needs to be installed between the cabinet door 1 and the mounting hole 101. First, take the power switch 2, and slide it backward with its rear end facing towards the mounting hole 101 between the rear frame 3. When the limiting post 302 on the rear frame 3 is inserted into the internal screw hole 201 at the rear end of the power switch 2, the power switch 2 can be initially fixed between the cabinet door 1 and the rear frame 3. Next, the operator can take the front frame 4, align the horizontal insert block 402 on the front frame 4 backward, and insert it into the horizontal slot 303 of the rear frame 3. During this process, the central sliding plate 304... Under the contact pressure of the horizontal insert 402, the folding spring 305 can be slid inward and squeezed in advance. When the horizontal insert 402 is fully inserted into the horizontal slot 303, the one-way locking block 306 can be aligned with the one-way locking groove 403 on the horizontal insert 402 on the same vertical center line. Under the elastic force of the folding spring 305, the one-way locking block 306 can spring outward and lock into the one-way locking groove 403 of the horizontal insert 402, locking the horizontal insert 402 in the horizontal slot 303 of the rear frame 3. At this time, the power switch 2 can fix the cabinet door 1, the mounting hole 101, the rear frame 3 and the front frame 4 without tools.

[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. A power switch mounting structure for a modular switchgear, comprising a cabinet door (1), mounting holes (101) formed on the cabinet door (1), and a power switch (2) mounted between the cabinet door (1) and the mounting holes (101), characterized in that, A rear frame (3) covering the rear end of the power switch (2) is fixedly connected between the rear end of the cabinet door (1) and the mounting hole (101). A front frame (4) covering the front end of the power switch (2) is movably installed between the front end of the cabinet door (1) and the mounting hole (101). A sliding lock mechanism for tool-free positioning and fixing of the power switch (2) between the rear frame (3) and the front frame (4) is provided between the left and right ends of the rear frame (3) and the front frame (4).

2. The power switch installation structure for a modular switchgear according to claim 1, characterized in that, The sliding lock mechanism includes a rear stop block (301) integrally fixed at the four corners of the rear end of the rear frame (3) and abutting against the rear end face of the power switch (2), a front stop block (401) integrally fixed at the four corners of the front end of the front frame (4) and abutting against the front end face of the power switch (2), a horizontal insert block (402) symmetrically fixed at the left and right ends of the front stop block (401) and extending backward through the rear frame (3), a horizontal slot (303) opened at the left and right ends of the rear frame (3) and corresponding to the position of the horizontal insert block (402), and a spring lock part disposed between the rear frame (3) and the horizontal insert block (402).

3. The power switch installation structure for a modular switchgear according to claim 2, characterized in that, The spring lock includes a central sliding piece (304) integrally fixed to the middle of the left and right ends of the rear frame (3) and located between two horizontal inserts (402), a one-way locking block (306) symmetrically movable at the upper and lower ends of the central sliding piece (304) and passing through the two horizontal inserts (402) respectively, a folding spring piece (305) installed between the central sliding piece (304) and the one-way locking block (306), and a one-way locking groove (403) opened on the horizontal insert (402) and corresponding to the one-way locking block (306).

4. The power switch installation structure for a modular switchgear according to claim 3, characterized in that, The one-way locking block (306) is fixedly connected to a handle (307) that bends outward at a right angle to the end facing the central sliding plate (304).

5. The power switch installation structure for a modular switchgear according to claim 2, characterized in that, The power switch (2) has internal threaded holes (201) facing the rear stop block (301) at each of the four corners at the rear end.

6. The power switch installation structure for a modular switchgear according to claim 5, characterized in that, The front end of the rear stop (301) is fixedly connected to a limiting post (302) that is in transition fit with the internal threaded hole (201).

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