CN205123054U - Low -voltage distribution box - Google Patents

Abstract

The utility model relates to a low-voltage power distribution box, which includes a box body. A low-voltage knife melting switch is arranged in the box. At least two low-voltage lines are connected to the low-voltage knife-melting switch. Each low-voltage line is provided with a microcomputer protection device. There is a double-throwing knife switch on the low-voltage line, one end of the double-throwing knife switch is connected to the microcomputer protection device, the other end of the double-throwing knife switch is connected to the low-voltage line, and there is a grounding component connected to the double-throwing knife switch on the box. There is a partition assembly on the knife throw switch; the utility model has the advantages of controlling the conduction and disconnection of the low-voltage line through the double knife throw switch, which can reduce the power failure range of the low-voltage line in the distribution transformer area, improve the reliability of power supply, and the grounding component. Setting, during the maintenance of distribution transformers or low-voltage lines, can effectively reduce the workload of staff to hang low-voltage grounding wires and improve work efficiency. safety.

Description

A low voltage distribution box

technical field

The utility model relates to a low-voltage distribution box.

Background technique

At present, the low-voltage outlets of low-voltage distribution boxes in my power supply area are generally divided into two or more channels. Currently, for the maintenance of low-voltage distribution lines, the main knife switch in the distribution box must be opened, and all low-voltage outlets in the distribution transformer area must be opened. It is impossible to achieve selective power outages for lines. With the intensification of the construction of new rural electrification villages, the insulation ratio of low-voltage lines is gradually increasing. This makes it difficult for some stations to repair distribution transformers or lines. Choosing a suitable place to hang the grounding wire will lead to low work efficiency.

Utility model content

The technical problem to be solved by the utility model is to provide a low-voltage distribution box, which can effectively solve the defect of low working efficiency during maintenance of the existing low-voltage distribution lines.

In order to solve the above technical problems, the utility model is realized through the following technical solutions: a low-voltage power distribution box, including a box body, a low-voltage knife melting switch is arranged in the box, and at least two low-voltage lines are connected to the low-voltage knife melting switch. Each low-voltage line is equipped with a microcomputer protection device, and each low-voltage line is equipped with a double-throwing knife switch to control the conduction and disconnection of the low-voltage line. One end of the double-throwing knife switch is connected to the microcomputer protection device, and the other end of the double-throwing knife switch One end is connected to the low-voltage line, the box body is provided with a grounding component connected with the double-throwing knife switch, and the double-throwing knife switch is provided with a partition component to prevent the operation of the double-throwing knife switch.

Preferably, the partition assembly includes an isolation cover and an insulating partition, the isolation cover is movably connected to the double-throwing knife switch, the insulating partition is arranged on the isolation cover, and the blocking isolation of the double-throwing knife switch is realized by the isolation cover, and the setting of the insulating partition , the safety performance is improved, and the use effect is good.

Preferably, the double-throwing knife switch is provided with a chute, and the isolation cover is provided with a slide block matched with the chute, and a limit stop is provided in the chute, and the cooperation of the chute and the slide block facilitates the movement of the isolation cover. The effect is good, and the setting of the limit stopper can ensure the partition effect of the isolation cover.

Preferably, the grounding assembly includes a grounding bar and a grounding bolt, the grounding bolt is connected to the grounding bar through a wire, the grounding bar is provided with a contact connected to the double-throwing knife switch, the grounding bar and the grounding bolt are both arranged on the box, and the grounding effect is Yes, it can realize the grounding of the box and has good safety performance.

Preferably, the box body is provided with an indicating component, which can effectively prevent operator's misoperation during grounding, and has high safety performance.

Preferably, the indicating assembly includes an indicating plate and an LED warning light, the indicating plate is fixedly connected to the box body through rivets, and the LED warning light is set on the box body, and the indicating component can be selected and prompted according to different application occasions, and the safety performance is high , The sign is fixed on the box by rivets, and the fixing effect is good.

Preferably, the outer wall of the box body is provided with a groove for fixing the sign, the groove is movably connected with a sealing plate, and the sealing plate is provided with a control rod for controlling the movement of the sealing plate to prevent the sign from falling off. In the groove, the indicator board can not be infected by dust, which is convenient for the operator to observe. The control rod controls the movement of the sealing plate, which is easy to operate and has good use effect.

Preferably, the box body is provided with a guide rail for the movable sealing plate, and the guide rail is provided with a locking screw for locking the sealing plate in the guide rail, so as to facilitate the movement of the sealing plate, and the sealing plate is locked in the guide rail by the locking screw, which can To avoid the falling off of the sealing plate, it is convenient to prompt the operator and improve the safety performance.

Preferably, the box body is provided with a control power supply for controlling the LED warning light to be turned on and off, which is convenient for the operator to operate and has a good control effect.

In summary, the utility model has the advantages of controlling the conduction and disconnection of the low-voltage line through the double-throwing knife switch, which can reduce the power failure range of the low-voltage line in the distribution transformer area and improve the reliability of the power supply. When the substation or low-voltage line is overhauled, it can effectively reduce the workload of the staff to hang the low-voltage grounding wire, improve work efficiency, and the setting of the barrier component can realize the reliable locking of the low-voltage grounding, prevent misoperation, and ensure the safety of people and equipment.

Description of drawings

Below in conjunction with accompanying drawing, the utility model is further described:

Fig. 1 is the structural representation of a kind of low-voltage distribution box of the utility model;

Fig. 2 is a structural schematic diagram of the installation of the partition assembly and the double-throwing knife switch of the utility model;

Fig. 3 is a structural schematic diagram of the utility model grounding assembly;

Fig. 4 is a structural schematic diagram of the box body of the utility model.

detailed description

As shown in Figure 1, Figure 2, Figure 3, and Figure 4, a low-voltage distribution box includes a box body 1, and a low-voltage knife melting switch 10 is arranged in the box body 1, and at least two circuits are connected to the low-voltage knife melting switch 10 Low-voltage lines 2, each low-voltage line 2 is provided with a microcomputer protection device 3, each low-voltage line 2 is provided with a double-throwing knife switch 4 for controlling the conduction and disconnection of the low-voltage line 2, and one end of the double-throwing knife switch 4 is connected to the microcomputer The protection device 3 is connected, the other end of the double-throwing knife switch 4 is connected with the low-voltage line 2, the box body 1 is provided with a grounding component 5 connected with the double-throwing knife switch 4, and the double-throwing knife switch 4 is provided with a switch to prevent double-throwing knife 4. The partition assembly 6 for operation, as shown in Figure 2, the partition assembly 6 includes an isolation cover 60 and an insulating partition 61, the isolation cover 60 is movably connected to the double-throwing knife switch 4, and the insulating partition 61 is arranged on the isolation cover 60, Realize the blocking and isolation of the double-throwing knife switch through the isolation cover, the setting of the insulating partition improves the safety performance, and the use effect is good. The double-throwing knife switch 4 is provided with a chute 40, and the isolation cover 60 is provided with a chute 40. Cooperating slide block 63, chute 40 is provided with limit stopper 41, and the cooperation of chute and slide block is convenient to isolation cover activity, and effect is good, and the setting of limit stopper can guarantee the partition effect of isolation cover.

Referring to Fig. 3 again, the ground assembly 5 includes a ground bar 51 and a ground bolt 52, the ground bolt 52 is connected to the ground bar 51 through a wire 53, the ground bar 51 is provided with a contact 54 connected to the double-throwing knife switch 4, the ground bar and The grounding bolts are all arranged on the box body, the grounding effect is good, the grounding of the box body can be realized, and the safety performance is good.

Finally look at Figure 4, the box body 1 is provided with an indicator assembly 7, which can effectively prevent the operator from misoperation when grounding, and has high safety performance. The indicator assembly 7 includes an indicator plate 71 and an LED warning light 72, and the indicator plate 71 is fixed by rivets Connected to the box body 1, the LED warning light 72 is set on the box body 1, and the indication components can be selected according to different application occasions, with high safety performance, and the indicator board is fixed on the box body by rivets, and the fixing effect is good , the outer wall of the box body 1 is provided with a groove 11 for fixing the sign 71, the groove 11 is movably connected with a sealing plate 12, and the sealing plate 12 is provided with a control rod 13 for controlling the movement of the sealing plate 12, so as to prevent the indicator from falling off , the indicator board is set in the groove, which can prevent the indicator board from being infected by dust, and is convenient for the operator to observe. The control rod controls the movement of the sealing plate, which is easy to operate and has good use effect. There is a guide rail for the movable sealing plate on the box body 1 8. The guide rail 8 is provided with a locking screw 81 for locking the sealing plate in the guide rail, which facilitates the movement of the sealing plate. The sealing plate is locked in the guide rail through the locking screw, which can prevent the sealing plate from falling off and is convenient for prompting the operator. To improve the safety performance, the box body 1 is provided with a control power supply 9 for controlling the LED warning light 72 to be turned on and off, which is convenient for the operator to operate and has a good control effect.

When in use, when the equipment is running normally, the double-throwing knife switch 4 is closed upwards, so that the incoming line connected to the double-throwing knife switch 4 is connected to the low-voltage line 2. When the distribution transformer or the low-voltage line needs to be overhauled, the double-throwing knife switch 4 pull down to separate the double-throwing knife switch 4 from the incoming line, and control the double-throwing knife switch to connect with the grounding component 5, so that the low-voltage line 2 is powered off and reliably grounded, and then the double-throwing knife switch 4 is separated by sliding the isolation cover 60. Knife throwing switch 4 can not be operated when overhauling, and LED warning light 72 is energized by control power supply 9 then, and pulling sealing plate 12 makes indicator plate 71 remind operator, and the safety performance during overhauling is high.

In addition to the above-mentioned preferred embodiment, the utility model also has other implementation modes, those skilled in the art can make various changes and deformations according to the utility model, as long as they do not depart from the spirit of the utility model, all should belong to the appended rights of the utility model The scope defined by the requirement.

Claims (9)

1. A low-voltage distribution box, comprising a box body (1), a low-voltage knife melting switch (10) is arranged in the box body (1), and at least two low-voltage lines (2) are connected to the low-voltage knife melting switch (10) , each low-voltage line (2) is provided with a microcomputer protection device (3), which is characterized in that: each low-voltage line (2) is provided with a double-throwing knife switch (4) for controlling the conduction and disconnection of the low-voltage line (2) ), one end of the double-throwing knife switch (4) is connected with the microcomputer protection device (3), the other end of the double-throwing knife switch (4) is connected with the low-voltage line (2), and the box body (1) is provided with a double-throwing knife The grounding component (5) connected to the switch (4), and the double-throwing knife switch (4) are provided with a partition component (6) for preventing misoperation of the double-throwing knife switch (4). 2. A low-voltage distribution box according to claim 1, characterized in that: the partition assembly (6) includes an isolation cover (60) and an insulating partition (61), and the isolation cover (60) is movably connected to the double-throwing knife On the switch (4), the insulating partition (61) is arranged on the isolation cover (60). 3. A low-voltage distribution box according to claim 2, characterized in that: a chute (40) is provided on the double-throwing knife switch (4), and a chute (40) is provided on the isolation cover (60) The matched slide block (63) is provided with a limit stopper (41) in the chute (40). 4. A low-voltage distribution box according to claim 1, characterized in that: the grounding assembly (5) includes a grounding bar (51) and a grounding bolt (52), and the grounding bolt (52) and the grounding bar (51) pass through Wire (53) links to each other, is provided with the contact (54) that is connected with double throw knife switch (4) on the ground bar (51), and ground bar (51) and ground bolt (52) are all arranged on the casing. 5. A low-voltage distribution box according to claim 1, characterized in that: the box body (1) is provided with an indicating component (7). 6. A low-voltage distribution box according to claim 5, characterized in that: the indicator assembly (7) includes a sign (71) and an LED warning light (72), and the sign (71) is fixedly connected to the box by rivets On the body (1), the LED warning light (72) is arranged on the casing (1). 7. A low-voltage distribution box according to claim 6, characterized in that: the outer wall of the box (1) is provided with a groove (11) for fixing the sign (71), and on the groove (11) A sealing plate (12) is movably connected, and the sealing plate (12) is provided with a control rod (13) for controlling the activity of the sealing plate (12). 8. A low-voltage distribution box according to claim 7, characterized in that: the box body (1) is provided with a guide rail (8) for the movement of the sealing plate, and the guide rail (8) is provided with a locking sealing plate on the Locking screw (81) in the rail. 9. A low-voltage distribution box according to claim 6, characterized in that: the box body (1) is provided with a control power supply (9) for controlling the LED warning light (72) to be turned on and off.