CN220341776U - Large-scale switch cabinet anti-off-line structure applied to construction site - Google Patents

Abstract

The utility model discloses a large-scale switch cabinet anti-drop structure applied to a building site, which comprises a cabinet body, wherein a disconnecting switch is arranged in the cabinet body, a cable is further arranged in the cabinet body, the cable extends upwards from a bottom plate of the cabinet body to extend above the disconnecting switch, and a hook for placing the cable is arranged at the top of the cabinet body. A wire placing frame for placing cables is arranged on the side wall in the cabinet body. The wire placing frame is provided with at least two wire placing frames. The utility model can fix the cable in the switch cabinet, avoid the phase line falling state caused by vibration and has low potential safety hazard.

Description

Large-scale switch cabinet anti-off-line structure applied to construction site

Technical Field

The utility model relates to the technical field of switch cabinets, in particular to a large switch cabinet anti-off-line structure applied to a construction site.

Background

Switch cabinets are a common type of electrical equipment and large three-phase five-wire switch cabinets are often used on construction sites to connect and control the switches with thicker cables.

The three-phase five-wire system comprises three phase wires and a neutral wire of a three-phase power supply; and a ground line. The neutral line is the zero line. As shown in fig. 1, during the process of power connection, the cable 3 is led to a power distribution room through the low-voltage output of an external transformer and the ground of a neutral point, then three phase wires 12 in the cable 3 extend upwards from the ground to above a disconnecting switch 2 in a switch cabinet and are respectively connected with three binding posts at the top of the disconnecting switch 2, then the neutral wire 13 in the cable 3 is directly connected to a leakage protector 15 below the disconnecting switch 2, then the neutral wire 13 is led out to a ground wire 14 terminal in the switch cabinet by using another conducting wire as a ground wire 14 to protect a zero wire, a conducting wire connected with a zero wire terminal 17 is connected with a binding post corresponding to the binding post connected with the neutral wire 13 on the leakage protector 15, and each binding post below the disconnecting switch 2 is used for being respectively connected with a single conducting wire and then connecting the conducting wire with other devices.

After the existing three-phase five-wire switch cabinet is connected, as the connection between the phase wires 12 and the isolating switch 2 is not stable enough, and larger vibration is often generated on a construction site, the switch cabinet is easy to generate larger movement of the cable 3 after long-term vibration, so that the phase wires 12 in the cable 3 fall off from the binding post, and if the fallen phase wires 12 are contacted with other phase wires 12, short circuit is caused, and potential safety hazard is high.

Disclosure of Invention

The utility model aims to provide a large-scale switch cabinet anti-drop structure applied to a construction site, which can fix cables in a switch cabinet, avoid the phase line drop state caused by vibration and has low potential safety hazard.

In order to solve the technical problems, the utility model adopts the following scheme:

the utility model provides a be applied to large-scale cubical switchboard anticreep line structure in building site, includes the cabinet body, is equipped with isolator in the cabinet body, still is equipped with the cable in the cabinet body, and the cable upwards stretches into from cabinet body bottom plate and extends to isolator top, the internal top of cabinet is equipped with the couple that is used for placing the cable. The cable is fixed through the setting of couple, can be located the cable of isolating switch top to the cable, avoids the vibrations that the cable received directly to transmit to the phase line section on the isolator terminal to the phase line drops from the terminal on the isolator when avoiding owing to vibrations.

Further, the lowest end of the hook in the state that the hook is at the lowest position is positioned above the isolating switch. The fixing device has the effect of avoiding poor fixing effect on the cable caused by too low hook position.

Further, a wire placing frame for placing cables is arranged on the side wall in the cabinet body. The cable rack has the effect that the section, close to the side wall of the switch cabinet, of the cable can be fixed through the arrangement of the cable rack.

Further, the wire placing frame is provided with at least two wire placing frames. The fixing device has the effect of improving the fixing effect on the cable.

Furthermore, the wire placing frame is L-shaped.

Furthermore, the wire placing frame is U-shaped, and two ends of the wire placing frame are fixed on the inner side wall of the cabinet body.

Furthermore, the wire placing frame is made of insulating materials.

The utility model has the beneficial effects that:

1. through the setting of couple, can be located the cable of isolating switch top and fix, avoid the vibrations that the cable received directly to transmit to the phase line section on the isolator terminal to the phase line drops from the terminal on the isolator when avoiding owing to vibrations.

Drawings

FIG. 1 is a schematic diagram of the structure of a switchgear cabinet in the background art;

fig. 2 is a schematic view of the structure in the switchgear in embodiment 1;

fig. 3 is a schematic view of the structure in the switchgear in embodiment 2.

The reference numerals are explained as follows: 1. a cabinet body; 2. an isolating switch; 3. a cable; 4. a hook; 11. a wire rack; 12. a phase line; 13. a neutral line; 14. a ground wire; 15. a leakage protector; 16. a ground terminal; 17. and a zero line terminal.

Detailed Description

The present utility model will be described in further detail with reference to examples and drawings, but embodiments of the present utility model are not limited thereto.

In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "longitudinal", "lateral", "horizontal", "inner", "outer", "front", "rear", "top", "bottom", etc., are directions or positional relationships based on those shown in the drawings, or are directions or positional relationships conventionally put in use of the inventive product, are merely for convenience of describing the present utility model and for simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be construed as limiting the present utility model.

In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "configured," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Example 1

The utility model provides a be applied to large-scale cubical switchboard anticreep line structure in building site, as shown in fig. 2, including the cabinet body 1, be equipped with isolator 2 in the cabinet body 1, still be equipped with cable 3 in the cabinet body 1, cable 3 upwards stretches into from cabinet body 1 bottom plate and extends to isolator 2 top, the top is equipped with the couple 4 that is used for placing cable 3 in the cabinet body 1. The cable 3 that its effect is, through the setting of couple 4, can be located the cable 3 of isolator 2 top to cable 3 is fixed, avoids the vibrations that cable 3 received directly to transmit to on the phase line 12 section on the isolator 2 terminal to phase line 12 drops from the terminal on the isolator 2 when avoiding owing to vibrations.

Specifically, as shown in fig. 2, the lowest end of the hook 4 in the state where the hook 4 is at the lowest position is located above the isolating switch 2. The effect is that the fixing effect on the cable 3 is poor due to the fact that the position of the hook 4 is too low is avoided.

Specifically, as shown in fig. 2, a wire rack 11 for placing the cables 3 is disposed on a side wall in the cabinet body 1. The cable 3 can be fixed to the section adjacent to the side wall of the switch cabinet by arranging the cable placing frame 11.

Specifically, as shown in fig. 2, two wire-placing frames 11 are provided. This serves to enhance the fixing effect on the cable 3.

Specifically, as shown in fig. 2, the wire-placing frame 11 has an L shape.

Specifically, as shown in fig. 2, the wire-placing frame 11 is made of an insulating material.

The working principle of this embodiment is explained as follows: when the cable 3 is installed, the cable 3 sequentially passes through two wire placing frames 11 from bottom to top and then is bent and hung on the hook 4, then the three phase wires 12 are sequentially connected with three binding posts on the isolating switch 2 respectively, then the neutral wire 13 in the cable 3 is directly connected to the earth leakage protector 15 below the isolating switch 2, then the neutral wire 13 is led out to a ground wire 14 terminal in the switch cabinet by using another wire as a ground wire 14 to protect the neutral wire, the binding posts corresponding to the binding posts connected with the neutral wire 13 on the earth leakage protector 15 are connected with wires connected with the neutral wire terminal 17, and each binding post below the isolating switch 2 is used for being connected with separate wires and then connecting the wires with other equipment.

When the cable 3 positioned outside the switch cabinet is subjected to vibration generated by a construction site, and the vibration is transmitted into the switch cabinet, the cable 3 is always fixed on the wire placing frame 11 and the hook 4, obvious displacement cannot be generated, and the phase line 12 cannot be pulled to cause the phase line 12 to fall off from the binding post.

Example 2

As shown in fig. 3, the wire placing frame 11 is U-shaped and has two ends fixed on the inner side wall of the cabinet body 1.

The foregoing description of the preferred embodiment of the utility model is not intended to limit the utility model in any way, but rather to cover all modifications, equivalents, improvements and alternatives falling within the spirit and principles of the utility model.

Claims (7)

1. Be applied to large-scale cubical switchboard anticreep line structure in building site, including the cabinet body (1), be equipped with isolator (2) in the cabinet body (1), still be equipped with cable (3) in the cabinet body (1), cable (3) upwards stretch into from cabinet body (1) bottom plate and extend to isolator (2) top, its characterized in that: the top is equipped with couple (4) that are used for placing cable (3) in cabinet body (1).

2. The large-scale switch cabinet anti-off-line structure applied to construction sites according to claim 1, wherein: the lowest end of the hook (4) in the state that the hook (4) is at the lowest position is positioned above the isolating switch (2).

3. The large-scale switch cabinet anti-off-line structure applied to construction sites according to claim 1, wherein: a wire placing frame (11) for placing cables is arranged on the side wall in the cabinet body (1).

4. A large-scale switchgear anti-off-line structure applied to a construction site according to claim 3, characterized in that: the wire placing frame (11) is provided with at least two wire placing frames.

5. A large-scale switchgear anti-off-line structure applied to a construction site according to claim 3, characterized in that: the wire placing frame (11) is L-shaped.

6. A large-scale switchgear anti-off-line structure applied to a construction site according to claim 3, characterized in that: the wire placing frame (11) is U-shaped, and two ends of the wire placing frame are fixed on the inner side wall of the cabinet body (1).

7. A large-scale switchgear anti-off-line structure applied to a construction site according to claim 3, characterized in that: the wire placing frame (11) is made of insulating materials.