CN219575490U - Indoor isolator with ground connection function - Google Patents

Abstract

The utility model relates to an indoor isolating switch with a grounding function, which comprises an isolating switch and a grounding mechanism, wherein the isolating switch consists of a lower outgoing line plate, an upper outgoing line plate and an isolating blade, and is characterized in that: the grounding mechanism consists of a grounding bracket, a grounding copper bar and a copper bar connecting plate, wherein the lower end of the grounding bracket is fixed on the cabinet body, the grounding copper bar is fixed at the upper end of the grounding bracket, and the grounding copper bar is connected with a grounding point of the cabinet body through a wire; when the upper end of the isolating blade is separated from the upper outlet plate and the isolating switch is in a disconnecting state, the upper end of the isolating blade is in contact connection with the grounding copper bar. The indoor isolating switch can effectively avoid injury to the life safety of maintenance personnel when power is transmitted accidentally and short circuit is caused artificially, and also solves the uncertainty caused by the fact that the grounding wire is hung at the lower opening (namely the lower outlet plate) of the isolating switch.

Description

Indoor isolator with ground connection function

Technical Field

The utility model relates to an indoor isolating switch, in particular to an indoor isolating switch with a grounding function.

Background

The isolating switch is the most used electric appliance in the high-voltage switch electric appliance, plays an isolating role in a circuit, has a simple working principle and structure, but has high requirement on working reliability due to large use amount and has larger influence on safe operation of users. At present, a normal GN19 series isolating switch has no grounding function, and when a user overhauls equipment, after power failure and electricity inspection, a grounding wire is often required to be hung at the lower opening of the isolating switch so as to prevent a circuit from accidentally transmitting power, or cause circuit short circuit or grounding artificially, trip the circuit switch and ensure the life safety of overhaulers. This approach is not only cumbersome to service, but also has certain safety hazards.

Disclosure of Invention

In order to overcome the defects of the technical problems, the utility model provides the indoor isolating switch with the grounding function.

The indoor isolating switch with the grounding function comprises an isolating switch and a grounding mechanism, wherein the isolating switch is fixed on a switch base in a cabinet body and consists of a lower wire outlet plate, an upper wire outlet plate and an isolating blade, the upper wire outlet plate and the lower wire outlet plate are respectively fixed at the upper end and the lower end of the switch base through insulators, and the lower end of the isolating blade is hinged on the lower wire outlet plate; the method is characterized in that: the grounding mechanism consists of a grounding bracket, a grounding copper bar and a copper bar connecting plate, wherein the grounding bracket is obliquely arranged, the lower end of the grounding bracket is fixed on the cabinet body, the grounding copper bar is fixed at the upper end of the grounding bracket, and the grounding copper bar is connected through the copper bar connecting plate; the grounding copper bar is connected with a grounding point of the cabinet body through a wire; when the upper end of the isolating blade is separated from the upper outlet plate and the isolating switch is in a disconnecting state, the upper end of the isolating blade is in contact connection with the grounding copper bar.

The indoor isolating switch with the grounding function comprises a bottom flat plate and a vertical plate, wherein the vertical plate is fixed on the bottom flat plate and is vertical to the bottom flat plate; first bolt holes are formed in two ends of the bottom flat plate, second bolt holes are formed in the copper bar connecting plate, the bottom flat plate is fixed to the grounding support through the first bolt holes in one end, and the first bolt holes in the other end of the bottom flat plate are connected with the second bolt holes through bolts.

The indoor isolating switch with the grounding function comprises an opening and closing driving mechanism for controlling the opening and closing of the isolating switch, wherein the opening and closing driving mechanism consists of an operating rod, a rotating shaft and an insulating pull rod, the rotating shaft is rotatably arranged on a switch base, a fixing sheet is fixed on the rotating shaft, and the tail end of the operating rod is connected with one end of the rotating shaft; one end of the insulating pull rod is hinged on the fixing sheet, and the other end is hinged on the isolating blade.

The beneficial effects of the utility model are as follows: the indoor isolating switch with the grounding function is characterized in that a grounding mechanism consisting of a grounding bracket, a grounding copper bar and a copper bar connecting plate is arranged in a cabinet body where the isolating switch is arranged, the grounding copper bar is fixed at the upper end of the grounding bracket, and the grounding copper bar is connected with a grounding point of the cabinet body through a wire; after the movable contact at the upper end of the isolating blade of the isolating switch is separated from the upper wire outlet plate, the movable contact of the isolating blade is in contact connection with the grounding copper bar, so that the isolating blade and the lower wire outlet plate are in a grounding state, the damage to the life safety of an maintainer caused by accidental power transmission and artificial short circuit at the moment can be effectively avoided, and the uncertainty caused by the fact that the grounding wire is hung at the lower port (namely the lower wire outlet plate) of the isolating switch is solved.

Drawings

Fig. 1 is a front view of a control cabinet provided with an indoor isolating switch with a grounding function according to the present utility model;

FIG. 2 is a right side view of a control cabinet provided with an indoor isolating switch with grounding function of the present utility model;

FIG. 3 is a cross-sectional view taken along section A-A of FIG. 2;

fig. 4 and 5 are perspective views of a control cabinet provided with an indoor isolating switch with a grounding function according to the utility model;

fig. 6 is a partial enlarged view of the area B in fig. 4.

In the figure: the novel high-voltage power supply comprises a cabinet body 1, a switch base 2, a lower wire outlet plate 3, an upper wire outlet plate 4, a separation blade 5, a grounding bracket 6, a grounding copper bar 7, a copper bar connecting plate 8, an insulator 9, a bottom plate 10, a vertical plate 11, a first bolt hole 12, a second bolt hole 13, an operating rod 14, a rotating shaft 15, an insulating pull rod 16 and a fixing sheet 17.

Description of the embodiments

The utility model will be further described with reference to the drawings and examples.

As shown in fig. 1 and 2, front views of a control cabinet provided with an indoor isolating switch having a grounding function according to the present utility model are respectively shown, and fig. 4 and 5 are both perspective views thereof, and fig. 3 is a cross-sectional view of section A-A of fig. 2. The indoor isolating switch with the grounding function is composed of an isolating switch and a grounding mechanism, wherein the isolating switch is arranged on a switch base 2 in a cabinet body 1 and is composed of an upper outgoing line plate 3, a lower outgoing line plate 4, an isolating blade 5 and a switching-on/off driving mechanism for driving the isolating switch to switch on/off. Because the three-phase alternating current is controlled, the three upper outlet plates 3, the isolating blades 5 and the lower outlet plates 4 are all shown, the upper outlet plates 3 and the lower outlet plates 4 are fixed at the upper end and the lower end of the switch base 2 through insulators 9, the lower ends of the isolating blades 5 are hinged to the lower outlet plates 3 and are fixed contacts, the upper ends of the isolating blades 5 are movable contacts, when the switch is closed, the movable contacts of the isolating blades 5 are in contact connection with the upper outlet plates 3, and when the switch is opened, the movable contacts of the isolating blades 5 are separated from the upper outlet plates 3.

The grounding mechanism comprises a grounding support 6, grounding copper bars 7 and copper bar connecting plates 8, the grounding support 6 is obliquely arranged, the lower end of the grounding support 6 is fixed on the cabinet body 1, the upper end of each grounding copper bar 7 is fixed on the grounding support 6, the grounding copper bars are connected with grounding points of the cabinet body through wires, and the three grounding copper bars 7 are connected through the copper bar connecting plates 8, so that good connection conductivity between the grounding copper bars 7 and the grounding support 6 can be guaranteed, and firmness of connection of the copper bars 7 is guaranteed. When the isolating switch is in the disconnecting state, the movable contact of the isolating blade 5 is in contact connection with the grounding copper bar 7, so that the isolating blade 5 and the lower outlet plate 3 are grounded through the grounding copper bar 7.

As shown in fig. 6, which shows a partially enlarged view of the region B in fig. 4, the base copper bar 7 shown is composed of a bottom plate 10 and a riser 11, the riser 11 being fixed to the bottom plate 10, the riser 11 being perpendicular to the bottom plate 10. The first bolt holes 12 are formed in the two ends of the bottom plate 10, the second bolt holes 13 are formed in the copper bar connecting plate 8, the first bolt holes 12 at one end of the bottom plate 10 are fixed at the upper end of the grounding bracket 6 through bolts, and the second bolt holes 13 at the other end are connected with the second bolt holes 13 through bolts.

The opening and closing driving mechanism is composed of an operating rod 14, a rotating shaft 15 and an insulating pull rod 16, wherein the rotating shaft 15 is rotatably arranged on the switch base 2, the tail end of the operating rod 14 is connected with one end of the rotating shaft 15, and a fixing piece 17 is fixed on the rotating shaft 15. One end of the insulating pull rod 16 is hinged with the fixing piece 17, and the other end is connected with the middle part (or the middle part is inclined downwards) of the isolating blade 5, so that the rotating shaft 15 is controlled to rotate through the operating rod 14, and the movable contact of the isolating blade 5 can be contacted with or separated from the upper outlet plate 4, so that the opening and closing operation of the isolating switch can be realized.

After the grounding support 6, the grounding copper bar 7 and the copper bar connecting plate 8 are processed, the grounding support 6 is fixed on the shell of the cabinet body 1, and the grounding copper bar 7 can be well contacted when the movable contact of the isolating switch is disconnected. The grounding copper bars 7 are fixed to the grounding support 7 using bolts, and then the copper bar connecting plates 8 are installed. After the installation is finished, debugging a lower isolating switch to ensure that the movable contact of the isolating switch can be well contacted with the grounding copper 7 bars; and a grounding wire is led out by utilizing the grounding copper bar 7 and is connected to the equipment grounding point, and the connection is firm by using bolts. After the grounding mechanism is installed, an operating handle of the isolating switch is directly operated, after the isolating switch is disconnected, a movable contact of the isolating switch is directly connected to the grounding copper bar 7, and the closing and grounding mechanical interlocking of the isolating switch is ensured through the movable contact of the isolating switch, so that the operating convenience and safety of operators are ensured.

Claims (3)

1. The indoor isolating switch with the grounding function comprises an isolating switch and a grounding mechanism, wherein the isolating switch is fixed on a switch base (2) in a cabinet body (1), the isolating switch is composed of a lower wire outlet plate (3), an upper wire outlet plate (4) and an isolating blade (5), the upper wire outlet plate and the lower wire outlet plate are respectively fixed at the upper end and the lower end of the switch base through insulators (9), and the lower end of the isolating blade is hinged on the lower wire outlet plate; the method is characterized in that: the grounding mechanism consists of a grounding bracket (6), a grounding copper bar (7) and a copper bar connecting plate (8), wherein the grounding bracket is obliquely arranged, the lower end of the grounding bracket is fixed on the cabinet body, the grounding copper bar is fixed at the upper end of the grounding bracket, and the grounding copper bar is connected through the copper bar connecting plate; the grounding copper bar is connected with a grounding point of the cabinet body through a wire; when the upper end of the isolating blade is separated from the upper outlet plate and the isolating switch is in a disconnecting state, the upper end of the isolating blade is in contact connection with the grounding copper bar.

2. The indoor isolating switch with grounding function as in claim 1, wherein: the grounding copper bar (7) consists of a bottom flat plate (10) and a vertical plate (11), wherein the vertical plate is fixed on the bottom flat plate and is vertical to the bottom flat plate; first bolt holes (12) have all been seted up at the both ends of end flat board, have seted up second bolt hole (13) on copper bar connecting plate (8), and end flat board is fixed in on ground connection support (6) through the first bolt hole of one end, and the first bolt hole of end flat board other end is connected with the second bolt hole through the bolt.

3. An indoor isolating switch with grounding function according to claim 1 or 2, characterized in that: the switch comprises a switch-on/off driving mechanism for controlling the switch-on/off of the isolating switch, wherein the switch-on/off driving mechanism consists of an operating rod (14), a rotating shaft (15) and an insulating pull rod (16), the rotating shaft is rotatably arranged on a switch base (2), a fixing piece (17) is fixed on the rotating shaft, and the tail end of the operating rod is connected with one end of the rotating shaft; one end of the insulating pull rod is hinged on the fixing sheet, and the other end is hinged on the isolating blade (5).