Mechanical interlocking power distribution cabinet safety isolation mechanism

Abstract

The utility model discloses a kind of mechanical interlocking power distribution cabinet safety isolation mechanism, belong to mechanical interlocking power distribution cabinet safety isolation mechanism technical field, its technical scheme main points include cabinet, the inside of the cabinet is provided with locking assembly, the left side of cabinet inner wall is fixedly connected with auxiliary assembly, the front side of the cabinet is rotatably connected with shielding door;The locking assembly includes groove, the inner wall of the groove is rotatably connected with protection plate, the rear side of the protection plate is fixedly connected with electromagnetic plate, the rear side of the groove inner wall is equipped with hidden groove for cooperation with electromagnetic plate, the inner wall of the hidden groove is fixedly connected with magnetic stripe for cooperation with electromagnet, the front side of the protection plate is fixedly connected with pull-out block, the auxiliary assembly includes connecting plate, the front side of the connecting plate is fixedly connected with electromagnet, can solve the structure of the existing majority of mechanical interlocking power distribution cabinet More complex, inconvenient maintenance problem.

Description

Technical Field

[0001] This utility model relates to the technical field of safety isolation mechanisms for mechanical interlocking power distribution cabinets, and in particular to a safety isolation mechanism for mechanical interlocking power distribution cabinets. Background Technology

[0002] A mechanically interlocked safety isolation mechanism for distribution cabinets is a safety protection device installed inside the distribution cabinet that achieves "operational constraints" through a purely mechanical structure. Its core function is to enforce and regulate the operating logic of the distribution cabinet, preventing accidents caused by personnel misoperation while the power is on. It can establish a mandatory relationship of "operation only after power is cut off, and operation must be performed before power is cut off" through precise linkage of mechanical components. For example, the mechanical interlocking structure will only unlock when the power supply to the distribution cabinet is completely cut off, allowing the cabinet door to be opened for maintenance or adjustment of internal components. Conversely, if the cabinet door is not completely closed or the drawer is not pushed tightly, the interlocking mechanism will jam the power switch or operating handle, preventing it from being switched on. At the same time, some mechanisms can also achieve multi-component linkage constraints to avoid risks such as electric shock and short circuits caused by improper operation of a single link. It is a key mechanical protection structure to ensure the safe operation of distribution cabinets and regulate personnel operation, and is especially suitable for power distribution scenarios with high reliability requirements and the need to avoid the impact of electrical component failures.

[0003] To address the aforementioned issues, existing patents offer solutions. However, most existing mechanical interlocking distribution cabinets have complex structures, making them inconvenient to maintain.

[0004] To address this, a mechanical interlocking distribution cabinet safety isolation mechanism is proposed. Utility Model Content

[0005] The purpose of this utility model is to provide a safety isolation mechanism for mechanical interlocking distribution cabinets, which can solve the problem that most existing mechanical interlocking distribution cabinets have complex structures and are inconvenient to maintain.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a mechanical interlocking distribution cabinet safety isolation mechanism, including a cabinet body, a locking component is provided inside the cabinet body, an auxiliary component is fixedly connected to the left side of the inner wall of the cabinet body, and a shielding door is rotatably connected to the front side of the cabinet body;

[0007] The locking assembly includes a groove, a protective plate rotatably connected to the inner wall of the groove, an electromagnetic plate fixedly connected to the rear side of the protective plate, a hidden groove for cooperating with the electromagnetic plate opened on the rear side of the inner wall of the groove, a magnetic strip for cooperating with the electromagnet fixedly connected to the inner wall of the hidden groove, and a pull block fixedly connected to the front side of the protective plate.

[0008] Preferably, the auxiliary component includes a connecting plate, an electromagnet is fixedly connected to the front side of the connecting plate, and a magnetic block is provided on the front side of the electromagnet.

[0009] Preferably, a spring rod is fixedly connected to the front side of the magnetic block, and a circular sleeve is fixedly connected to the front side of the spring rod, which is fixedly connected to the rear side of the protective plate.

[0010] Preferably, the surface of the electromagnet is provided with a buffer sleeve, and the buffer sleeve is made of rubber.

[0011] Preferably, a square groove is provided on the front side of the cabinet, and a pluggable connecting wire is provided on the inner wall of the square groove. The pluggable connecting wire is connected to a magnetic strip and an electromagnet.

[0012] Preferably, a square plate is slidably connected inside the square groove, and an adjustment groove is provided on the front side of the square plate.

[0013] Preferably, auxiliary grooves are provided on the left and right sides of the inner wall of the square groove, and auxiliary blocks that cooperate with the auxiliary grooves are fixedly connected to the left and right sides of the square plate.

[0014] Preferably, the bottom of the cabinet is fixedly connected to a support leg, and the bottom of the support leg is fixedly connected to an anti-slip plate.

[0015] Preferably, a mounting bracket is fixedly connected to the inner wall of the cabinet, and a mounting plate is slidably connected inside the mounting bracket.

[0016] Preferably, the front side of the circular sleeve is provided with a sliding groove, and the rear side of the magnetic block is fixedly connected with a sliding rod that cooperates with the sliding groove.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. In terms of structural simplification and ease of maintenance, the core locking function of this application is achieved through a simplified electromagnetic-mechanical combination of "electromagnetic plate + magnetic strip + electromagnet + magnetic block", which replaces the complex gear and multi-link transmission structure of the traditional mechanism, reduces the transmission parts that are easy to wear and jam, and reduces the structural complexity.

[0019] 2. In this application, the key electrical connections are designed with pluggable connecting wires. During maintenance, there is no need to disassemble the entire mechanism. The wires can be plugged in and unplugged simply by sliding the square plate. With the precise matching structure of the auxiliary block and auxiliary slot, and the sliding rod and sliding groove, the location of the component can be quickly located in case of failure, which greatly reduces the difficulty of maintenance. Attached Figure Description

[0020] Figure 1 This is an overall structural diagram of the safety isolation mechanism of the mechanical interlocking distribution cabinet of this utility model;

[0021] Figure 2 This is a schematic diagram of the locking component of this utility model;

[0022] Figure 3 This is a schematic diagram of the structure of the auxiliary component of this utility model;

[0023] Figure 4 This is a schematic diagram showing the segmentation of a partial component of this utility model;

[0024] Figure 5 This utility model Figure 4 Enlarged diagram of point A in the middle.

[0025] In the diagram, 1. Cabinet; 2. Locking assembly; 201. Groove; 202. Protective plate; 203. Electromagnetic plate; 204. Hidden groove; 205. Magnetic strip; 206. Pull-out block; 3. Auxiliary assembly; 301. Connecting plate; 302. Electromagnet; 303. Magnetic block; 304. Spring rod; 305. Round sleeve; 306. Buffer sleeve; 4. Covering door; 5. Square groove; 6. Plug-in connecting wire; 7. Square plate; 8. Adjustment groove; 9. Auxiliary groove; 10. Auxiliary block; 11. Support leg; 12. Anti-slip plate; 13. Mounting bracket; 14. Mounting plate; 15. Slide groove; 16. Slide rod. 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figure 1-5 The present invention provides the following technical solution:

[0028] A mechanical interlocking distribution cabinet safety isolation mechanism includes a cabinet body 1, a locking component 2 is provided inside the cabinet body 1, an auxiliary component 3 is fixedly connected to the left side of the inner wall of the cabinet body 1, and a shielding door 4 is rotatably connected to the front side of the cabinet body 1.

[0029] The locking component 2 includes a groove 201, a protective plate 202 rotatably connected to the inner wall of the groove 201, an electromagnetic plate 203 fixedly connected to the rear side of the protective plate 202, a hidden groove 204 for cooperating with the electromagnetic plate 203 is opened on the rear side of the inner wall of the groove 201, a magnetic strip 205 for cooperating with the electromagnet 302 is fixedly connected to the inner wall of the hidden groove 204, and a pull block 206 is fixedly connected to the front side of the protective plate 202.

[0030] Cabinet 1 serves as the basic framework of the entire safety isolation mechanism, housing locking components 2, auxiliary components 3, and internal electrical components of the distribution cabinet. It provides installation support and a protective shell, protecting internal components from external environmental interference and providing a safe operating space for personnel. Locking component 2, the core protective structure, achieves safe locking of the distribution cabinet through electromagnetic and mechanical cooperation, preventing misoperation under energized conditions. A groove 201, located inside cabinet 1, provides space for the rotating installation of protective plate 202 while limiting its range of motion, ensuring precise blocking or unlocking. Protective plate 202 can rotate within the groove 201. When energized, it engages with magnetic strip 205 and electromagnet 302 to lock, blocking critical electrical components inside cabinet 1. After power failure, it can be opened for easy inspection or adjustment of internal components. Electromagnetic plate 203... The magnetic strip 205, fixed to the rear side of the protective plate 202, generates magnetism when energized, interacting with the magnetic strip 205 in the hidden groove 204 to enhance the locking effect of the protective plate 202 and ensure that the protective plate 202 will not be accidentally opened when energized. The hidden groove 204, located on the rear side of the inner wall of the groove 201, is used to accommodate the magnetic strip 205 and provides a corresponding adsorption space for the electromagnetic plate 203, making the magnetic attraction between the electromagnetic plate 203 and the magnetic strip 205 more stable and avoiding the exposure of components from affecting the locking effect. The magnetic strip 205, fixed to the inner wall of the hidden groove 204, works in conjunction with the electromagnetic plate 203 and the electromagnet 302. When energized, the magnetic attraction of the protective plate 202 achieves locking. When the power is off, the magnetism disappears, and the locked state is released. The pull block 206, fixed to the front side of the protective plate 202, provides a force point for the operator to pull the protective plate 202 after unlocking, realizing the opening or closing operation of the protective plate 202 and improving the ease of use.

[0031] Specifically, such as Figure 3 As shown, the auxiliary component 3 includes a connecting plate 301, an electromagnet 302 is fixedly connected to the front side of the connecting plate 301, and a magnetic block 303 is provided on the front side of the electromagnet 302.

[0032] Specifically, such as Figure 3 As shown, a spring rod 304 is fixedly connected to the front side of the magnetic block 303, and a round sleeve 305 is fixedly connected to the front side of the spring rod 304. The round sleeve 305 is fixedly connected to the rear side of the protective plate 202.

[0033] Specifically, such as Figure 3 As shown, a buffer sleeve 306 is provided on the surface of the electromagnet 302, and the buffer sleeve 306 is made of rubber.

[0034] In this embodiment: A connecting plate 301 is fixed to the left side of the inner wall of the cabinet 1, serving as the mounting carrier for the electromagnet 302. This ensures the electromagnet 302 is stably fixed inside the cabinet 1, guaranteeing accurate positioning and smooth engagement with the magnetic block 303. The electromagnet 302 is fixed to the front of the connecting plate 301. When energized, it generates magnetism to attract the magnetic block 303, assisting the locking of the protective plate 202. When de-energized, the magnetism disappears, releasing the magnetic block 303 and unlocking the device in conjunction with the locking assembly 2. This is the core power component of the electromagnetic locking system. By setting a magnetic block 303 to cooperate with the electromagnet 302, the magnetic attraction force is transmitted to the protective plate 202 to enhance the locking. By setting a spring rod 304 to connect the magnetic block 303 and the circular sleeve 305, the impact force during magnetic attraction is buffered and the magnetic block 303 is reset. By setting a circular sleeve 305 to connect the magnetic block 303 and the protective plate 202, the magnetic block 303 is positioned to ensure alignment with the electromagnet 302. By setting a buffer sleeve 306 to fit on the surface of the electromagnet 302, the rubber material reduces the wear and tear of the parts and reduces noise.

[0035] Specifically, such as Figure 4 As shown, a square groove 5 is provided on the front side of the cabinet 1. A pluggable connecting wire 6 is provided on the inner wall of the square groove 5. The pluggable connecting wire 6 is connected to the magnetic strip 205 and the electromagnet 302.

[0036] Specifically, such as Figure 4 As shown, a square plate 7 is slidably connected inside the square groove 5, and an adjustment groove 8 is provided on the front side of the square plate 7.

[0037] In this embodiment: a square slot 5 is provided to accommodate the pluggable connecting wire 6 and the square plate 7, providing space for their installation and movement. The pluggable connecting wire 6 connects the magnetic strip 205 and the electromagnet 302 to transmit power. The pluggable design facilitates maintenance. The square plate 7 is slidably connected to the square slot 5. When closed, it blocks the connecting wire from damage, and when opened, it facilitates plugging and unplugging the wire. An adjustment slot 8 is provided on the front side of the square plate 7, allowing the operator to apply force to facilitate sliding the square plate 7.

[0038] Specifically, such as Figure 5 As shown, auxiliary grooves 9 are provided on the left and right sides of the inner wall of the square groove 5, and auxiliary blocks 10 that cooperate with the auxiliary grooves 9 are fixedly connected to the left and right sides of the square plate 7.

[0039] Specifically, such as Figure 1 , Figure 2 As shown, the bottom of the cabinet 1 is fixedly connected to a support leg 11, and the bottom of the support leg 11 is fixedly connected to an anti-slip plate 12.

[0040] In this embodiment: by setting auxiliary groove 9 and auxiliary block 10, the inner walls of auxiliary block 10 and auxiliary groove 9 are in contact to facilitate the splicing of square plate 7 and square groove 5. By setting support leg 11, the cabinet 1 can be supported. By setting anti-slip plate 12, it is fixed to the bottom of support leg 11 to increase friction and prevent the cabinet 1 from sliding.

[0041] Specifically, such as Figure 2 As shown, a mounting bracket 13 is fixedly connected to the inner wall of the cabinet 1, and a mounting plate 14 is slidably connected inside the mounting bracket 13.

[0042] Specifically, such as Figure 3 As shown, a groove 15 is provided on the front side of the circular sleeve 305, and a slide rod 16 that cooperates with the groove 15 is fixedly connected to the rear side of the magnetic block 303.

[0043] In this embodiment: by setting up the mounting bracket 13, which is fixed to the inner wall of the cabinet 1, a sliding track and support are provided for the mounting plate 14. By setting up the mounting plate 14, the mounting bracket 13 is slidably connected to install electrical components. The position can be adjusted to adapt to different components. By setting up the slide groove 15 and the slide rod 16, the slide rod 16 is movably connected to the inner wall of the slide groove 15 to ensure that the magnetic block 303 and the electromagnet 302 are accurately aligned and move smoothly.

[0044] Working principle: Current is transmitted through the pluggable connecting wire 6 in the square slot 5 to the magnetic strip 205 of the locking component 2 and the electromagnet 302 of the auxiliary component 3. When the magnetic strip 205 is energized, it generates magnetism and attracts the electromagnet 203 on the back of the protective plate 202, firmly locking the protective plate 202 in the groove 201 and shielding the electrical components inside the cabinet 1. Simultaneously, the electromagnet 302 generates magnetism when energized, attracting the magnetic block 303 on its front side. The magnetic block 303 transmits the attraction force to the protective plate 202 through the spring rod 304 and the circular sleeve 305. 2. To further enhance the locking effect of the protective plate 202, even if the pull block 206 on the front side of the protective plate 202 is pulled, the protective plate 202 cannot be opened, preventing personnel from contacting internal components while the power is on. If maintenance or operation is required, the main power supply must be disconnected first. After the power is cut off, the magnetism of the magnetic strip 205 and the electromagnet 302 disappears, the attraction between the magnetic strip 205 and the electromagnet plate 203 is released, the electromagnet 302 releases the magnetic block 303, and the magnetic block 303, under the action of the reset elastic force of the spring rod 304, drives the circular sleeve 305 to move slightly backward, simultaneously releasing the magnetic block 303. In addition to the auxiliary locking of the protective plate 202, the operator can pull the protective plate 202 through the pull block 206 to rotate and open the protective plate 202 along the inner wall of the groove 201, exposing the internal electrical components for operation. During this process, the sliding groove 15 on the front side of the circular sleeve 305 cooperates with the sliding rod 16 on the rear side of the magnetic block 303 to ensure that the magnetic block 303 moves along a fixed trajectory when it is attracted or reset, avoiding deviation. The rubber buffer sleeve 306 on the surface of the electromagnet 302 can reduce the collision wear of the magnetic block 303 when it is attracted. The square plate 7 in the square groove 5 can... The sliding adjustment groove 8 allows for easy power-off when open and shields the connecting wires to prevent damage when closed. The cooperation between the auxiliary block 10 and the auxiliary groove 9 ensures smooth sliding of the square plate 7. In addition, the support legs 11 and anti-slip plate 12 at the bottom of the cabinet 1 ensure the stability of the cabinet 1. The mounting bracket 13 and mounting plate 14 on the inner wall can flexibly accommodate the installation of electrical components. The whole system achieves reliable isolation under energized conditions and ensures convenient operation after power failure through precise electromagnetic and mechanical linkage. At the same time, it solves the problems of complex structure and inconvenient maintenance of traditional mechanisms.

[0045] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A mechanical interlocking distribution cabinet safety isolation mechanism, comprising a cabinet body (1), characterized in that: The cabinet (1) is equipped with a locking component (2) inside, and an auxiliary component (3) is fixedly connected to the left side of the inner wall of the cabinet (1). A blocking door (4) is rotatably connected to the front side of the cabinet (1). The locking assembly (2) includes a groove (201), a protective plate (202) is rotatably connected to the inner wall of the groove (201), an electromagnetic plate (203) is fixedly connected to the rear side of the protective plate (202), a hidden groove (204) is provided on the rear side of the inner wall of the groove (201) to cooperate with the electromagnetic plate (203), a magnetic strip (205) to cooperate with the electromagnet (302) is fixedly connected to the inner wall of the hidden groove (204), and a pull block (206) is fixedly connected to the front side of the protective plate (202).

2. The safety isolation mechanism for a mechanically interlocked distribution cabinet according to claim 1, characterized in that: The auxiliary component (3) includes a connecting plate (301), an electromagnet (302) is fixedly connected to the front side of the connecting plate (301), and a magnetic block (303) is provided on the front side of the electromagnet (302).

3. The safety isolation mechanism for a mechanically interlocked distribution cabinet according to claim 2, characterized in that: A spring rod (304) is fixedly connected to the front side of the magnetic block (303), and a round sleeve (305) is fixedly connected to the front side of the spring rod (304). The round sleeve (305) is fixedly connected to the rear side of the protective plate (202).

4. The safety isolation mechanism for a mechanically interlocked distribution cabinet according to claim 2, characterized in that: The surface of the electromagnet (302) is provided with a buffer sleeve (306), and the buffer sleeve (306) is made of rubber.

5. The safety isolation mechanism for a mechanically interlocked distribution cabinet according to claim 1, characterized in that: The front side of the cabinet (1) is provided with a square groove (5), and the inner wall of the square groove (5) is provided with a pluggable connecting wire (6), which is connected to the magnetic strip (205) and the electromagnet (302).

6. The safety isolation mechanism for a mechanically interlocked distribution cabinet according to claim 5, characterized in that: A square plate (7) is slidably connected inside the square groove (5), and an adjustment groove (8) is provided on the front side of the square plate (7).

7. The safety isolation mechanism for a mechanically interlocked distribution cabinet according to claim 6, characterized in that: The square groove (5) has auxiliary grooves (9) on its left and right sides, and the square plate (7) has auxiliary blocks (10) fixedly connected to its left and right sides to cooperate with the auxiliary grooves (9).

8. The safety isolation mechanism for a mechanically interlocked distribution cabinet according to claim 1, characterized in that: The bottom of the cabinet (1) is fixedly connected to a support leg (11), and the bottom of the support leg (11) is fixedly connected to an anti-slip plate (12).

9. The safety isolation mechanism of a mechanical interlocking distribution cabinet according to claim 1, characterized in that: The inner wall of the cabinet (1) is fixedly connected to a mounting bracket (13), and a mounting plate (14) is slidably connected inside the mounting bracket (13).

10. A mechanical interlocking distribution cabinet safety isolation mechanism according to claim 3, characterized in that: The front side of the circular sleeve (305) is provided with a sliding groove (15), and the rear side of the magnetic block (303) is fixedly connected with a sliding rod (16) that cooperates with the sliding groove (15).

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