CN214478653U - Interlocking structure for preventing misoperation of switch cabinet sealing plate - Google Patents

Abstract

The utility model discloses an interlocking structure of maloperation is prevented to cubical switchboard shrouding belongs to electrical switchgear technical field. Including last shrouding, back lower door, first screw and frame in the back, the crossbeam is installed to the frame upper end, the shrouding below is equipped with back lower door in the back, and the laminating is gone up between shrouding upper end and the crossbeam in the back, and the shrouding both sides are gone up through first fix with screw on the frame in the back, still include the interlocking subassembly. Through the utility model discloses an interlocking subassembly can realize after the cubical switchboard power transmission, and when the back lower door was not opened, the shrouding can not be forced to demolish through the instrument on the back, and only when the outage, the back lower door was removed with the interior interlock of cabinet, and the back lower door is opened the back, and the shrouding could be opened on the back to prevent to go up the shrouding maloperation in the back, ensure power consumption safety, simple structure, the interlocking is reliable, can extensively be used for various types of cubical switchboard.

Description

Interlocking structure for preventing misoperation of switch cabinet sealing plate

Technical Field

The utility model relates to a cubical switchboard shrouding prevents interlocking structure of maloperation belongs to electrical switch cabinet technical field.

Background

The switch cabinet is an electrical device, the external line of the switch cabinet firstly enters a main control switch in the cabinet and then enters a branch control switch, and each branch is arranged according to the requirement. Such as meters, automatic controls, magnetic switches of motors, various alternating current contactors, and the like, some of which are also provided with high-voltage chambers and low-voltage chamber switch cabinets, and high-voltage buses, such as power plants, and some of which are also provided with low-frequency load shedding for keeping main equipment.

The main function of the switch cabinet is to open and close, control and protect electric equipment in the process of power generation, power transmission, power distribution and electric energy conversion of an electric power system. The components in the switch cabinet mainly comprise a circuit breaker, an isolating switch, a load switch, an operating mechanism, a mutual inductor, various protection devices and the like. The classification methods of the switch cabinets are various, for example, the switch cabinets can be divided into movable switch cabinets and fixed switch cabinets by the installation mode of the circuit breaker; or according to different cabinet body structures, the cabinet body can be divided into an open type switch cabinet, a metal closed switch cabinet and a metal closed armored switch cabinet; the high-voltage switch cabinet, the medium-voltage switch cabinet, the low-voltage switch cabinet and the like can be divided according to different voltage grades. The method is mainly suitable for various occasions such as power plants, transformer substations, petrochemical industry, metallurgical steel rolling, light industrial textile, industrial and mining enterprises, residential districts, high-rise buildings and the like.

Current cubical switchboard is after the power transmission, because staff's maloperation leads to the back to go up the shrouding and is opened, and the staff exposes in the electrified environment of high pressure, causes the incident.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, an object of the utility model is to provide a cubical switchboard shrouding prevents interlocking structure of maloperation realizes that high tension switchgear prevents to miss the interlocking requirement of going into electrified compartment.

The utility model discloses the technical problem that will solve takes following technical scheme to realize:

an interlocking structure for preventing misoperation of a switch cabinet sealing plate comprises a rear upper sealing plate, a rear lower door, a first screw and a frame, wherein a cross beam is mounted at the upper end of the frame;

the interlocking assembly comprises a U-shaped bent plate, a second screw, a pin shaft and an L-shaped folded plate, the second screw is welded at the position, close to the outer edge, of the upper end of the rear upper sealing plate, the U-shaped bent plate is assembled with the rear upper sealing plate through the second screw, a notch is formed in the U-shaped bent plate, and the L-shaped folded plate is arranged at the lower end of the rear upper sealing plate;

the rear upper sealing plate is buckled on the pin shaft through a notch and is opened and closed with the cross beam;

the upper end of the rear lower door presses the L-shaped folded plate at the lower end of the rear upper sealing plate.

Preferably, the L-shaped flap is integrally formed with the rear upper closure panel.

As a preferred example, two U-shaped bent plates are installed at the upper end of the rear upper sealing plate, and two pins corresponding to the U-shaped bent plates are installed on the cross beam.

The utility model has the advantages that:

through the utility model discloses an interlocking subassembly can realize after the cubical switchboard power transmission, and when the back lower door was not opened, the shrouding can not be forced to demolish through the instrument on the back, and only when the outage, the back lower door was removed with the interior interlock of cabinet, and the back lower door is opened the back, and the shrouding could be opened on the back to prevent to go up the shrouding maloperation in the back, ensure power consumption safety, simple structure, the interlocking is reliable, can extensively be used for various types of cubical switchboard.

Drawings

Fig. 1 is a schematic view of the structure of the present invention;

FIG. 2 is a schematic cross-sectional view taken along line A-A of FIG. 1;

FIG. 3 is an enlarged view of the structure at B in FIG. 2;

fig. 4 is an enlarged schematic view of the structure at C in fig. 2.

In the figure: 1. a rear upper sealing plate; 2. a rear lower door; 3. a cross beam; 4. a first screw; 5. a U-shaped bent plate; 6. a second screw; 7. a pin shaft; 8. l-shaped folded plates.

Detailed Description

In order to make the technical means, the creation features, the achievement purposes and the functions of the present invention easy to understand and understand, the present invention is further explained by combining the following specific drawings.

As shown in fig. 1-4, an interlocking structure of cubical switchboard shrouding maloperation is prevented includes back upper seal plate 1, back lower door 2 and frame main part, and crossbeam 3 is installed to frame main part upper end, and 1 below of back upper seal plate is equipped with back lower door 2, and the laminating is gone up between 1 upper end of shrouding and the crossbeam 3 in the back, and 1 both sides of back upper seal plate are fixed on the frame through first screw 4, still include interlocking subassembly.

The interlocking assembly comprises a U-shaped bent plate 5, second screws 6, a pin shaft 7 and an L-shaped folded plate 8, two second screws 6 are welded to the upper end of the rear upper sealing plate 1 close to the outer edge, the two U-shaped bent plates 5 are assembled with the rear upper sealing plate 1 through the second screws 6, notches are formed in the U-shaped bent plates 5, the lower end of the rear upper sealing plate 1 is provided with the L-shaped folded plate 8, and the L-shaped folded plate 8 and the rear upper sealing plate 1 are of an integrated structure. Meanwhile, two pin shafts 7 are arranged on the rear upper cross beam 3 of the cabinet body frame. When shrouding 1 is gone up to the installation back, earlier utilize the notch of two U-shaped bent plates 5 to detain and hang on round pin axle 7 on crossbeam 3, recycle a plurality of first screws 4 and fix in the frame main part, then close back lower door 2, the lower extreme L shape folded plate 8 of shrouding 1 is gone up to the back is pushed down to the upper end of back lower door 2, when the outage opens the door like this, back upper shrouding 1 is owing to pushed down lower limit by back lower door 2, when dismantling the first screw 4 on left and right sides with the instrument, because lower limit L shape folded plate 8 and the effect of last U-shaped bent plate 5 knot on round pin axle 7, back upper shrouding 1 can not up four directions in the left and right sides and move, can't demolish promptly. Only when back lower door 2 is opened the back, can dismantle back upper seal board 1, realize the interlocking requirement that high tension switchgear prevented to miss entering electrified compartment, ensure the safety of power consumption.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the above-described embodiments, and that various changes and modifications may be made without departing from the spirit and scope of the invention, and such changes and modifications are intended to be included within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (3)

1. The interlocking structure for preventing misoperation of the switch cabinet sealing plate comprises a rear upper sealing plate (1), a rear lower door (2), first screws (4) and a frame, wherein a cross beam (3) is mounted at the upper end of the frame, the rear lower door (2) is arranged below the rear upper sealing plate (1), the upper end of the rear upper sealing plate (1) is attached to the cross beam (3), and two sides of the rear upper sealing plate (1) are fixed on the frame through the first screws (4), and the interlocking structure is characterized by further comprising an interlocking component;

the interlocking assembly comprises a U-shaped bent plate (5), a second screw (6), a pin shaft (7) and an L-shaped folded plate (8), the second screw (6) is welded at the position, close to the outer edge, of the upper end of the rear upper sealing plate (1), the U-shaped bent plate (5) is assembled with the rear upper sealing plate (1) through the second screw (6), a notch is formed in the U-shaped bent plate (5), and the L-shaped folded plate (8) is arranged at the lower end of the rear upper sealing plate (1);

a pin shaft (7) is mounted on the cross beam (3), and the rear upper sealing plate (1) is buckled on the pin shaft (7) through a notch and is opened and closed with the cross beam (3);

the upper end of the rear lower door (2) presses an L-shaped folded plate (8) at the lower end of the rear upper sealing plate (1).

2. A tamper-resistant interlocking structure for a switchgear enclosure as claimed in claim 1, wherein said L-shaped flap is integrally formed with said rear upper enclosure panel.

3. The interlocking structure for preventing the misoperation of the switch cabinet sealing plate as claimed in claim 1, wherein two U-shaped bent plates (5) are mounted at the upper end of the rear upper sealing plate (1), and two pin shafts (7) corresponding to the U-shaped bent plates (5) are mounted on the cross beam (3).

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