CN205389012U - Intelligent power distribution coils earthing device - Google Patents

Abstract

The utility model discloses an intelligent switchboard grounding device, which relates to the technical field of electrical equipment. An intelligent switchboard grounding device, comprising a fixing seat, a fixing plate is arranged on the top of the cavity, a first connecting rod and a second connecting rod are symmetrically arranged on the fixing plate, a third connecting rod is arranged on the first connecting rod, and one end of the third connecting rod passes through The first hinged shaft is hinged to the first connecting rod, the first threaded hole is set on the first hinged shaft, the fourth connecting rod is set on the second connecting rod, one end of the fourth connecting rod is hinged to the second connecting rod through the second hinged shaft, A second threaded hole is provided on the second hinge shaft, the first threaded hole and the second threaded hole are screwed with a screw, the bottom end of the third connecting rod and the fourth connecting rod are hinged, and the bottom end of the connecting plate is provided with a grounding rod. At least two wires are arranged on the ground rod, and a terminal clamp is arranged on the wires. The beneficial effect of the utility model lies in that the utility model has a simple structure, can be conveniently and firmly connected with the earth, is convenient to use, and has good safety performance.

Description

An intelligent switchboard grounding device

technical field

The utility model relates to the technical field of electrical equipment, in particular to an intelligent switchboard grounding device.

Background technique

The switchboard, also known as the power distribution cabinet, is a device for concentrating, switching and distributing electric energy. The switchboard is generally composed of a cabinet, a switch (circuit breaker), a protection device, a monitoring device, an electric energy meter, and other secondary components. Installed in power stations, substations and power customers with large power consumption. The "Electricity Safety Work Regulations" stipulates that "when the equipment is strictly confirmed to have no voltage, the maintenance equipment should be grounded immediately and the three-phase short circuited." The power supply station is currently responsible for the maintenance and repair of all power distribution voltage levels below 10kV within the jurisdiction. When the 0.4kV power distribution switch is stopped, because the existing 0.4kV grounding wire is relatively large, when the switchboard and low-voltage line are overhauled, the equipment in the switchboard must be grounded, and the grounding wire can only be hung on the knife switch at the upper end of the air switch. The grounding wire cannot be hung at the lower end of the air switch, because the air switch must be disconnected when the power is off, so the upper end and the lower end of the air switch are not connected. Suspending the grounding wire at the upper end of the air switch can only ensure the protection of the operators when the dark power suddenly appears at the upper end, but cannot ensure the protection of the operators when the power suddenly appears at the lower end. The existing switchboard grounding device is inconvenient to make it firmly connected to the earth, inconvenient to use, and prone to potential safety hazards.

Contents of the invention

In order to solve the deficiencies in the prior art, the utility model provides an intelligent switchboard grounding device, which has a simple structure, can be conveniently connected firmly with the ground, is convenient to use, and has good safety performance.

In order to achieve the above object, the utility model is realized through the following technical solutions: an intelligent switchboard grounding device, including a fixing seat, a cavity is arranged inside the fixing seat, and a perforation is arranged at the bottom of the fixing seat, and the perforation communicates with the cavity, A fixed plate is arranged on the top of the cavity, and a first connecting rod and a second connecting rod are arranged symmetrically on the fixed plate, and the first connecting rod and the second connecting rod are evenly hinged on the fixed plate, and the first connecting rod is away from the fixed One end of the plate is provided with a third connecting rod, and one end of the third connecting rod is hinged to the first connecting rod through a first hinge shaft, and a first threaded hole is arranged on the first hinge shaft, and the first threaded hole is perpendicular to the first A hinge shaft, the end of the second connecting rod away from the fixed plate is provided with a fourth connecting rod, one end of the fourth connecting rod is hinged with the second connecting rod through the second hinge shaft, and the second connecting rod is arranged on the second hinge shaft. A threaded hole, the second threaded hole is perpendicular to the second hinge axis, the pitch of the second threaded hole is the same as that of the first threaded hole, and the thread is opposite, and the screw rod is screwed inside the first threaded hole and the second threaded hole, A wrench is provided at one end of the screw, and the wrench is located outside the fixed seat. A connecting plate is hinged between the bottom ends of the third connecting rod and the fourth connecting rod. A grounding rod is arranged at the bottom end of the connecting plate, and the grounding rod passes through the The perforation is exposed outside the fixing seat, at least two wires are arranged on the grounding rod, and a terminal clamp is arranged on the wires.

The wiring clip is an alligator clip.

There are three wires.

The wires are braided copper wires.

The wrench is an insulated wrench.

Compared with the prior art, the beneficial effects of the utility model are:

1. The utility model drives the screw to rotate by turning the wrench, the screw rotates to move the first hinged shaft and the second hinged shaft, and the movement of the first hinged shaft and the second hinged shaft drives the third connecting rod and the fourth connecting rod to move, thereby The connecting plate moves up and down, and the connecting plate drives the grounding rod to move up and down, so that the connecting rod is firmly connected to or separated from the ground, flexible and convenient to use, simple and labor-saving.

2. The wiring clip is an alligator clip, which has a strong clamping force and is not easy to slip off, so as to ensure the reliability of the ground wire connection.

3. There are three wires, and there are three clamps on the three wires. The three clamps clamp the three-phase wires at the internal terminals of the low-voltage switch. The grounding rod is connected to the earth to form a protective grounding, which is safe and reliable.

4. The wire is copper braided wire, which has good flexibility and is easy to carry. At the same time, the welding connection method will not cause poor contact. The grounding resistance is far less than the required 4 ohms to ensure the reliable connection of the grounding wire.

5. The wrench is an insulated wrench, which prevents the staff from getting an electric shock and improves the safety of the device.

Description of drawings

Accompanying drawing 1 is a structural representation of the utility model.

Labels shown in the accompanying drawings: 1, fixed seat; 2, cavity; 3, perforation; 4, fixed plate; 5, first connecting rod; 6, second connecting rod; 7, third connecting rod; 8, the first 1. hinged shaft; 9. fourth connecting rod; 10. second hinged shaft; 11. screw; 12. wrench; 13. connecting plate; 14. ground rod;

detailed description

The utility model will be further described in conjunction with the accompanying drawings and specific embodiments. It should be understood that these embodiments are only used to illustrate the present utility model and are not intended to limit the scope of the present utility model. In addition, it should be understood that after reading the content taught by the utility model, those skilled in the art can make various changes or modifications to the utility model, and these equivalent forms also fall within the scope defined by the appended claims of the application.

An intelligent switchboard grounding device, comprising a fixing base 1 , a cavity 2 is arranged inside the fixing base 1 , and a perforation 3 is arranged at the bottom of the fixing base 1 , and the perforation 3 communicates with the cavity 2 . The top of the cavity 2 is provided with a fixed plate 4, and the first connecting rod 5 and the second connecting rod 6 are symmetrically arranged on the fixed plate 4, and the first connecting rod 5 and the second connecting rod 6 are evenly connected to the fixed plate 4, One end of the first connecting rod 5 away from the fixed plate 4 is provided with a third connecting rod 7, one end of the third connecting rod 7 is hinged with the first connecting rod 5 through the first hinge shaft 8, and on the first hinge shaft 8 The first threaded hole is set, the first threaded hole is perpendicular to the first hinge shaft 8, the second connecting rod 6 is provided with a fourth connecting rod 9 at one end away from the fixed plate 4, and one end of the fourth connecting rod 9 passes through the first Two articulated shafts 10 are hinged with the second connecting rod 6, and the second threaded hole is set on the second articulated shaft 10, and the second threaded hole is perpendicular to the second articulated shaft 10, and the second threaded hole and the first screw thread The pitch of the holes is the same and the threads are opposite. The first threaded hole and the second threaded hole are screwed with a screw 11. One end of the screw 11 is provided with a wrench 12, and the wrench 12 is located outside the fixed seat 1. The third connecting rod 7 and the bottom end of the fourth connecting rod 9 hinged connecting plate 13, the bottom end of the connecting plate 13 is provided with a grounding rod 14, the grounding rod 14 is exposed outside the fixing base 1 through the perforation 3, on the grounding rod 14 At least two wires 15 are arranged, and a terminal clip 16 is arranged on the wires 15 .

When the utility model is in use, the fixed seat is placed on the ground, and then the screw is driven to rotate by turning the wrench. The rotation of the screw makes the first hinge shaft and the second hinge shaft move, and the movement of the first hinge shaft and the second hinge shaft drives the third The connecting rod and the fourth connecting rod move, so that the connecting plate moves up and down, and the connecting plate drives the grounding rod to move up and down, so that the connecting rod is firmly connected to the ground, which is flexible and convenient to use, simple and labor-saving, and connects the terminal clamp to the grounding wire of the low-voltage switch box , After the grounding rod is connected to the earth, connect it to the grounding wire of the low-voltage switch box with a clamp to form a protective grounding, which is safe and reliable; The separation of the earth is simple and labor-saving.

As an optimization, the terminal clip 16 is an alligator clip, which has a strong clamping force and is not easy to slip off, so as to ensure the reliability of the connection of the grounding wire.

As an optimization, there are three wires 15, and there are three clamps on the three wires, the three clamps clamp the three-phase wires at the internal terminals of the low-voltage switch, and the grounding rod is connected to the earth to form a protective ground, which is safe and reliable.

As an optimization, the wire 15 is a braided copper wire. The braided copper wire has good flexibility and is easy to carry. At the same time, the welding connection method will not cause poor contact. The grounding resistance is far less than the required 4 ohms, so as to ensure reliable connection of the grounding wire.

As an optimization, the wrench 12 is an insulated wrench, which prevents workers from getting an electric shock and improves the safety of the device.

Example 1:

An intelligent switchboard grounding device, comprising a fixing base 1 , a cavity 2 is arranged inside the fixing base 1 , and a perforation 3 is arranged at the bottom of the fixing base 1 , and the perforation 3 communicates with the cavity 2 . The top of the cavity 2 is provided with a fixed plate 4, and the first connecting rod 5 and the second connecting rod 6 are symmetrically arranged on the fixed plate 4, and the first connecting rod 5 and the second connecting rod 6 are evenly connected to the fixed plate 4, One end of the first connecting rod 5 away from the fixed plate 4 is provided with a third connecting rod 7, one end of the third connecting rod 7 is hinged with the first connecting rod 5 through the first hinge shaft 8, and on the first hinge shaft 8 The first threaded hole is set, the first threaded hole is perpendicular to the first hinge shaft 8, the second connecting rod 6 is provided with a fourth connecting rod 9 at one end away from the fixed plate 4, and one end of the fourth connecting rod 9 passes through the first Two articulated shafts 10 are hinged with the second connecting rod 6, and the second threaded hole is set on the second articulated shaft 10, and the second threaded hole is perpendicular to the second articulated shaft 10, and the second threaded hole and the first screw thread The pitches of the holes are the same and the threads are opposite. The first threaded hole and the second threaded hole are screwed with a screw 11. One end of the screw 11 is provided with a wrench 12. The wrench 12 is located outside the fixing seat 1. The wrench 12 is insulated Wrench to prevent staff from electric shock and improve the safety of the device. A connecting plate 13 is hinged between the bottom ends of the third connecting rod 7 and the fourth connecting rod 9, the bottom end of the connecting plate 13 is provided with a grounding rod 14, and the grounding rod 14 is exposed outside the fixing seat 1 through the perforation 3, There are three wires 15 arranged on the ground rod 14, and there are three clamps 16 on the three wires. The three wire clips clamp the three-phase wires at the internal terminals of the low-voltage switch, and the ground rod is connected to the earth to form a protective ground. ,Safe and reliable. The wire 15 is a braided copper wire. The braided copper wire has good flexibility and is easy to carry. At the same time, the welding connection method will not cause poor contact. The grounding resistance is far less than the required 4 ohms, so as to ensure the reliable connection of the grounding wire. The connecting clip 16 is an alligator clip, and the clamping force of the alligator clip is relatively strong and is not easy to slip off, so as to ensure the reliability of the connection of the grounding wire.

Claims (5)

1. null1. an intelligent power distribution dish grounding device，It is characterized in that: include fixing seat (1)，Described fixing seat (1) is internal arranges cavity (2)，Described fixing seat (1) bottom arranges perforation (3)，Described perforation (3) connects with cavity (2)，Described cavity (2) top arranges fixing plate (4)，Described fixing plate (4) is symmetrical arranged head rod (5) and the second connecting rod (6)，Described head rod (5) and the second connecting rod (6) are all hinged with fixing plate (4)，Described head rod (5) arranges the 3rd connecting rod (7) away from one end of fixing plate (4)，Described 3rd connecting rod (7) one end is hinged by the first jointed shaft (8) and head rod (5)，Described first jointed shaft (8) arranges the first screwed hole，Described first screwed hole is perpendicular to the first jointed shaft (8)，Described second connecting rod (6) arranges the 4th connecting rod (9) away from one end of fixing plate (4)，Described 4th connecting rod (9) one end is hinged by the second jointed shaft (10) and the second connecting rod (6)，Described second jointed shaft (10) arranges the second screwed hole，Described second screwed hole is perpendicular to the second jointed shaft (10)，The pitch of described second screwed hole and the first screwed hole is identical、Screw thread is contrary，Be spirally connected in described first screwed hole and the second screwed hole screw rod (11)，Described screw rod (11) one end arranges spanner (12)，It is outside that described spanner (12) is positioned at fixing seat (1)，Be articulated and connected between described 3rd connecting rod (7) and the 4th connecting rod (9) bottom plate (13)，Described connecting plate (13) bottom arranges earth brace (14)，It is outside that described earth brace (14) is exposed to fixing seat (1) through perforation (3)，Described earth brace (14) is upper arranges at least two wires (15)，Described wire (15) arranges ramp (16).
2. 2. a kind of intelligent power distribution dish grounding device according to claim 1, it is characterised in that: described ramp (16) is alligator clamp.
3. 3. a kind of intelligent power distribution dish grounding device according to claim 1, it is characterised in that: described wire (15) is three.
4. 4. a kind of intelligent power distribution dish grounding device according to claim 1, it is characterised in that: described wire (15) is copper litz wire.
5. 5. a kind of intelligent power distribution dish grounding device according to claim 1, it is characterised in that: described spanner (12) is Insulation spanner.