High-low voltage complete power distribution cabinet with safety isolation
By introducing isolation and contact mechanisms into high and low voltage switchgear, and using hydraulic oil to drive the contact plate to buffer external forces, the problem of damage to the switchgear when subjected to external force collisions is solved, and safety is improved.
Patent Information
- Application Number
- CN202520343357.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-28
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2035-02-28
AI Technical Summary
Existing high and low voltage switchgear is easily damaged by external impacts when outdoors, lacks safety isolation functions, and reduces safety.
A high- and low-voltage switchgear with isolation and contact mechanisms was designed. Safety isolation is achieved through isolation fences, top covers and protective doors, and hydraulic oil is used to drive contact rods and contact plates to buffer external force collisions, thus achieving safety isolation.
It effectively prevents damage to the distribution cabinet from external impacts, improves the safety of the distribution cabinet, and achieves better safety isolation.
Smart Images
Figure CN223927932U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of high and low voltage distribution cabinet technology, specifically, to a high and low voltage complete distribution cabinet with safety isolation. Background Technology
[0002] High and low voltage switchgear are power distribution equipment used in power supply systems for power distribution, control, metering, and cable connection. Generally, power supply bureaus and substations use high-voltage switchgear, which is then stepped down by transformers to the low-voltage side, leading to low-voltage switchgear. From the low-voltage switchgear, the power is distributed to various distribution panels, control boxes, and switch boxes. These are devices that integrate switches, circuit breakers, fuses, buttons, indicator lights, meters, wires, and other protective devices to achieve the designed functional requirements. High and low voltage switchgear are generally installed outdoors, therefore, safety isolation devices are required to protect them.
[0003] However, existing technologies still have many shortcomings in practical use. For example, high and low voltage switchgear is easily subjected to external impacts outdoors, and it cannot provide a safe isolation function for high and low voltage switchgear. This leads to damage to the high and low voltage switchgear when subjected to external impacts, reducing the safety of the high and low voltage switchgear. Utility Model Content
[0004] The purpose of this utility model is to provide a high- and low-voltage switchgear with safety isolation, which solves the problem that the existing technology's ability to safely isolate high- and low-voltage switchgear leads to damage to the switchgear when subjected to external impact.
[0005] This utility model provides the following technical solution: a high and low voltage complete set of distribution cabinet with safety isolation, including a base, a distribution cabinet body is fixedly installed on the top of the base, an isolation mechanism for protecting the distribution cabinet body is provided on the outer side of the base near the distribution cabinet body, and abutment mechanisms for abutting the isolation mechanism are provided at both ends on the inner side of the isolation mechanism.
[0006] As a preferred embodiment of the above technical solution, the isolation mechanism includes an isolation fence, the bottom end of which is fixedly installed on the top of the base, and a top cover is fixedly installed on the top of the isolation fence. Protective doors are installed on both sides of the outer wall of the top cover via hinges.
[0007] The above technical solution provides safety isolation to the outside of the distribution cabinet body through the isolation fence, top cover, and two sets of protective doors. Opening the two sets of protective doors facilitates the maintenance of the distribution cabinet body by staff.
[0008] As a preferred embodiment of the above technical solution, the bottom ends of both sets of protective doors are connected to both sides of the outer wall of the base through hinges, the two sets of protective doors cover the outer wall of the isolation fence, and the surfaces of both sets of protective doors are fitted with latches through hinges.
[0009] The above technical solution locks the two sets of protective doors by using locks and latches.
[0010] As a preferred embodiment of the above technical solution, the plurality of abutment mechanisms include a plurality of abutment seats, each of the plurality of abutment seats having a cavity inside, each of the plurality of abutment seats having an abutment rod inserted into the cavity, and a piston being fixedly connected to one end of each of the plurality of abutment rods near the cavity.
[0011] Through the above technical solution, the continuously injected hydraulic oil contacts several sets of pistons to move in parallel within several sets of chambers, which in turn drives several sets of contact rods to move in parallel.
[0012] As a preferred embodiment of the above technical solution, each of the several sets of contact seats has an outlet at one end near one of the several sets of chambers, and a connecting channel is provided at one end of each of the several sets of contact seats near one of the several sets of outlets. A ball check valve is installed inside each of the several sets of connecting channels by a spring. An inlet is provided through one end of each of the several sets of contact seats near one of the several sets of connecting channels, and a blocking block is inserted into the inside of each of the several sets of inlets.
[0013] Through the above technical solution, the staff removes several sets of blocking blocks and injects hydraulic oil into several sets of inlets. The output force of the hydraulic oil flow pushes several sets of ball check valves away from the output ends of several sets of inlets, so that the hydraulic oil can be injected into the interior of several sets of connecting channels through several sets of inlets. The hydraulic oil inside the several sets of connecting channels is injected into the interior of several sets of chambers through several sets of outlets. It should be noted that when the hydraulic oil is injected into the interior of several sets of chambers, it is stored in the interior of several sets of chambers near the side of several sets of pistons.
[0014] As a preferred embodiment of the above technical solution, an abutment plate is fixedly installed at one end of the several sets of abutment rods away from the several sets of pistons, and the end of the several sets of abutment plates away from the several sets of abutment rods contacts the inner wall of the isolation fence.
[0015] Through the above technical solution, the pressure of hydraulic oil inside several chambers contacts several sets of pistons, several sets of contact rods, and several sets of contact plates, which facilitates the buffering of the impact force on the isolation fence, thereby enabling the isolation fence to better protect the main body of the power distribution cabinet.
[0016] As a preferred embodiment of the above technical solution, a support plate is fixedly installed on the top of each of the several sets of abutment seats, and the side of each of the several sets of support plates near the inner wall of the isolation fence is fixedly connected to the inner wall of the isolation fence by bolts.
[0017] The above technical solution involves fixing several sets of support plates to the inner wall of the isolation fence, which facilitates the protection of the inner wall of the isolation fence by the several sets of support plates.
[0018] Compared with the prior art, the beneficial effects of this utility model are:
[0019] This utility model provides safe isolation for the power distribution cabinet body by setting up an isolation mechanism. By setting up an anti-collision mechanism to protect the power distribution cabinet body from the squeezing force generated by external impact, the isolation mechanism can better protect the power distribution cabinet body. This achieves the function of safely isolating the power distribution cabinet body, solves the problem of damage to the power distribution cabinet body when subjected to external impact, and improves the safety of the power distribution cabinet body. Attached Figure Description
[0020] Figure 1 This is a three-dimensional structural diagram of a high- and low-voltage switchgear with safety isolation.
[0021] Figure 2 This is a schematic diagram of the isolation mechanism structure of a high- and low-voltage switchgear with safety isolation.
[0022] Figure 3 This is a schematic diagram of the contact mechanism structure of a high- and low-voltage switchgear with safety isolation.
[0023] Figure 4 for Figure 3 Enlarged structural diagram at point A in the middle.
[0024] In the diagram: 1. Base; 2. Distribution cabinet body; 3. Isolation mechanism; 301. Isolation fence; 302. Top cover; 303. Protective door; 304. Lock; 4. Contact mechanism; 401. Contact seat; 402. Chamber; 403. Contact rod; 404. Piston; 405. Outlet; 406. Connection channel; 407. Ball check valve; 408. Inlet; 409. Blocking block; 410. Contact plate; 411. Support plate. Detailed Implementation
[0025] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.
[0026] like Figures 1-4As shown, this utility model provides a technical solution: a high and low voltage complete distribution cabinet with safety isolation, including a base 1, a distribution cabinet body 2 fixedly installed on the top of the base 1, an isolation mechanism 3 for protecting the distribution cabinet body 2 is provided on the outer side of the base 1 near the outer side of the distribution cabinet body 2, the isolation mechanism 3 includes an isolation fence 301, the bottom end of the isolation fence 301 is fixedly installed on the top of the base 1, a top cover 302 is fixedly installed on the top of the isolation fence 301, and protective doors 3 are installed on both sides of the outer wall of the top cover 302 through hinges. 03. The bottom ends of the two sets of protective doors 303 are connected to both sides of the outer wall of the base 1 through hinges. The two sets of protective doors 303 cover the outer wall of the isolation fence 301. The surfaces of the two sets of protective doors 303 are equipped with latches 304 through hinges. The isolation fence 301, the top cover 302 and the two sets of protective doors 303 provide safety isolation to the outside of the power distribution cabinet body 2. Opening the two sets of protective doors 303 facilitates the maintenance of the power distribution cabinet body 2 by the staff. The two sets of protective doors 303 are locked by the locks and latches 304.
[0027] As one implementation method in this embodiment, such as Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, the inner sides of the isolation mechanism 3 are provided with abutting mechanisms 4 at both ends for abutting the isolation mechanism 3. Several sets of abutting mechanisms 4 include several sets of abutting seats 401. Each set of abutting seats 401 has a chamber 402 inside. Each set of chambers 402 has an abutting rod 403 inserted into it. A piston 404 is fixedly connected to one end of each abutting rod 403 near the chamber 402. Each set of abutting seats 401 has an outlet 405 inside one end near the chamber 402. Each set of abutting seats 401 has a connecting channel 406 near the outlet 405. A ball check valve 407 is installed inside each connecting channel 406 via a spring. The several sets of abutting seats 401... 01. An inlet 408 is provided at one end of several sets of connecting channels 406. A blocking block 409 is inserted into each of the inlets 408. A contact plate 410 is fixedly installed at the end of each set of contact rods 403 away from the pistons 404. The end of each contact plate 410 away from the contact rods 403 contacts the inner wall of the isolation fence 301. A support plate 411 is fixedly installed at the top of each set of contact seats 401. The side of each support plate 411 closest to the inner wall of the isolation fence 301 is fixedly connected to the inner wall of the isolation fence 301 by bolts. Hydraulic oil is injected into the inlets 408 by workers removing the blocking blocks 409. The flowing output force pushes several sets of ball check valves 407 away from the output ends of several sets of inlets 408, facilitating the injection of hydraulic oil into the interior of several sets of connecting channels 406 through the several sets of inlets 408. The hydraulic oil inside the several sets of connecting channels 406 is then injected into the interior of several sets of chambers 402 through several sets of outlets 405. It should be noted that when the hydraulic oil is injected into the several sets of chambers 402, it is stored in the interior of the several sets of chambers 402 near the several sets of pistons 404. The continuously injected hydraulic oil causes the several sets of pistons 404 to move parallel within the several sets of chambers 402. The parallel movement of the several sets of pistons 404 drives the several sets of abutment plates 410 through the several sets of abutment rods 403. When the contact plates 410 are fully in contact with the outer wall inside the isolation fence 301, the injection of hydraulic oil into the chambers 402 stops. This helps to fix the force of the contact plates 410 against the outer wall inside the isolation fence 301. At the same time, the blocking blocks 409 are re-inserted into the inlets 408, and the elastic force of the springs drives the ball check valves 407 to reset. The reset ball check valves 407 are locked at the output ends of the inlets 408, which helps to block the output ends of the inlets 408 and prevent the hydraulic oil injected into the chambers 402 from leaking out through the inlets 408.
[0028] Working Principle: When the high and low voltage switchgear is installed outdoors, the outside of the switchgear body 2 is safely isolated by the isolation fence 301, the top cover 302, and two sets of protective doors 303. Opening the two sets of protective doors 303 facilitates maintenance of the switchgear body 2. The two sets of protective doors 303 are locked by the locks and latches 304. By removing several sets of blocking blocks 409, hydraulic oil is injected into several sets of inlets 408. The output force of the hydraulic oil pushes several sets of ball check valves 407 away from the output ends of the inlets 408, facilitating... Hydraulic oil is injected into several sets of connecting channels 406 through several sets of inlets 408. The hydraulic oil inside the connecting channels 406 is then injected into several sets of chambers 402 through several sets of outlets 405. It is important to note that when the hydraulic oil is injected into the chambers 402, it is stored in the chambers 402 near the pistons 404. The continuously injected hydraulic oil causes the pistons 404 to move parallel within the chambers 402. The parallel movement of the pistons 404, through several sets of abutment rods 403, drives several sets of abutment rods. Plate 410 abuts against the outer wall of the inner side of the isolation fence 301. When several sets of abutting plates 410 are fully in contact with the outer wall of the inner side of the isolation fence 301, the injection of hydraulic oil into the several sets of chambers 402 is stopped. This is to fix the force of the several sets of abutting plates 410 against the outer wall of the inner side of the isolation fence 301. At the same time, several sets of blocking blocks 409 are re-inserted into the several sets of inlets 408, and the elastic force of several sets of springs drives several sets of ball check valves 407 to reset. The reset ball check valves 407 are then locked into the several sets of inlets 408. The output end of the barrier is designed to block the output ends of several sets of inlets 408, preventing the hydraulic oil injected into the chamber 402 from leaking out through the inlets 408. When the barrier 301 is impacted by an external force, the pressure of the hydraulic oil inside the several sets of chambers 402 abuts against several sets of pistons 404, several sets of abutment rods 403, and several sets of abutment plates 410, which helps the abutment plates 410 to buffer the impact force on the barrier 301. This allows the barrier 301 to better isolate the power distribution cabinet body 2, thus achieving the function of safely isolating the power distribution cabinet body 2.
[0029] The above embodiments are only used to illustrate the technical solution of this utility model, and are not intended to limit it.
Claims
1. A high- and low-voltage switchgear with safety isolation, comprising a base (1), characterized in that: The top of the base (1) is fixedly installed with the power distribution cabinet body (2). The base (1) is provided with an isolation mechanism (3) for protecting the power distribution cabinet body (2) on the outside. The two ends of the inner side of the isolation mechanism (3) are provided with abutting mechanisms (4) for abutting the isolation mechanism (3).
2. A high- and low-voltage switchgear with safety isolation as described in claim 1, characterized in that: The isolation mechanism (3) includes an isolation fence (301), the bottom end of which is fixedly installed on the top of the base (1), and a top cover (302) is fixedly installed on the top of the isolation fence (301). Protective doors (303) are installed on both sides of the outer wall of the top cover (302) through hinges.
3. A high- and low-voltage switchgear with safety isolation as described in claim 2, characterized in that: The bottom ends of both sets of protective doors (303) are connected to both sides of the outer wall of the base (1) through hinges. The two sets of protective doors (303) cover the outer wall of the isolation fence (301). The surfaces of both sets of protective doors (303) are fitted with latches (304) through hinges.
4. A high- and low-voltage switchgear with safety isolation as described in claim 1, characterized in that: The several sets of abutting mechanisms (4) include several sets of abutting seats (401), each set of abutting seats (401) has a cavity (402) inside, each set of abutting rods (403) is inserted into the cavity (402), and a piston (404) is fixedly connected to one end of each set of abutting rods (403) near the cavity (402).
5. A high- and low-voltage switchgear with safety isolation as described in claim 4, characterized in that: Each of the several sets of contact seats (401) has an outlet (405) inside one end near one of the several sets of chambers (402). Each of the several sets of contact seats (401) has a connecting channel (406) inside one end near one of the several sets of outlets (405). Each of the several sets of connecting channels (406) has a ball check valve (407) installed inside one of the several sets of contact seats (401) through one end near one of the several sets of connecting channels (406). Each of the several sets of inlets (408) has a plug (409) inserted inside one of the several sets of inlets (408).
6. A high- and low-voltage switchgear with safety isolation as described in claim 4, characterized in that: A contact plate (410) is fixedly installed at one end of the several sets of contact rods (403) away from the several sets of pistons (404), and the end of the several sets of contact plates (410) away from the several sets of contact rods (403) is in contact with the inner wall of the isolation fence (301).
7. A high- and low-voltage switchgear with safety isolation as described in claim 4, characterized in that: Each of the several sets of abutment seats (401) has a support plate (411) fixedly installed on its top end. The side of each of the several sets of support plates (411) near the inner wall of the isolation fence (301) is fixedly connected to the inner wall of the isolation fence (301) by bolts.