CN217545245U - Splicing type secondary screen cabinet test terminal isolator - Google Patents

Abstract

The utility model relates to a secondary screen cabinet test terminal isolator that can splice, including insulating horizontal muscle, insulating perpendicular muscle, first insulating cylinder and the insulating cylinder of second, insulating perpendicular muscle upper end is connected with insulating horizontal muscle one end, the vertical setting of first insulating cylinder is perpendicular with insulating horizontal muscle, the insulating horizontal muscle other end is connected in first insulating cylinder lower extreme side, the vertical connection in first insulating cylinder lower extreme of the insulating cylinder of second, first recess has been seted up to the leading flank of first insulating cylinder, the trailing flank relative with the leading flank on the first insulating cylinder is equipped with the first lug with first concave in a wretched state looks adaptation. The isolator is good in insulation, simple in structure, convenient to operate, convenient to carry and capable of being repeatedly used.

Description

Splicing type secondary screen cabinet test terminal isolator

Technical Field

The utility model belongs to the electric power tool field, concretely relates to experimental terminal isolator of secondary screen cabinet that can splice.

Background

According to the examination regulations of relay protection and power grid safety automatic devices and the examination period and examination and acceptance time regulations of the point protection and safety automatic devices of the Fujian power-saving network, relay protection personnel need to regularly maintain and examine the operation state of the related secondary circuit of the secondary equipment. With the continuous improvement of the power grid architecture, the number of the transformer substations increases day by day, and the workload required by secondary equipment in the transformer substations also increases day by day. In order to ensure the isolation between the power failure overhaul equipment and the operation equipment, secondary safety measures are strictly required to be strictly executed in the work so as to ensure the safety of personnel and power grid equipment.

In the routine maintenance work of secondary equipment such as example inspection, transformation, defect elimination and the like, before the operation, in the process of executing secondary safety measures, the test terminals of the overhaul equipment, the adjacent screen cabinets and the test terminals of other operation equipment on the same screen need to be safely isolated, so that the misoperation of the equipment caused by mistaken touch on other operation equipment is prevented. Important circuits, typically current and voltage, need to be isolated, so that the isolating tool should effectively isolate the open gap between the device side and the cable side to prevent the metal tabs from re-closing due to loose screws. In the debugging and adding process, if the cable side and the device side loop are reconnected, current shunting is caused slightly, the protection fixed value cannot be accurately checked, secondary lateral primary side reverse power supply is possibly caused heavily, and the safety of the person and power grid equipment is not facilitated. Therefore, it is necessary to use a good insulated, effectively isolated secondary screen cabinet test terminal isolator tool.

Disclosure of Invention

An object of the utility model is to provide a secondary screen cabinet test terminal isolator that can splice, this isolator is insulating good, simple structure, portable easy-to-use, repeatedly usable.

In order to achieve the above object, the utility model adopts the following technical scheme: the utility model provides a secondary screen cabinet test terminal isolator that can splice, includes insulating horizontal muscle, insulating perpendicular muscle, first insulating cylinder and the insulating cylinder of second, insulating perpendicular muscle upper end is connected with insulating horizontal muscle one end, the vertical setting of first insulating cylinder is perpendicular with insulating horizontal muscle, the insulating horizontal muscle other end is connected in first insulating cylinder lower extreme side, the vertical connection of the insulating cylinder of second is in first insulating cylinder lower extreme, first recess has been seted up to the leading flank of first insulating cylinder, the trailing flank relative with the leading flank is equipped with the first lug with first concave trough looks adaptation on the first insulating cylinder.

Furthermore, the second insulating column is perpendicular to the lower bottom surface of the first insulating column, and the central axes of the first insulating column and the second insulating column are on the same straight line.

Furthermore, the first groove and the first bump are positioned at the same height of the first insulating column, the shape and the angle of the first groove and the first bump are the same, and the first groove and the first lug are vertically concave and convex along the front side surface and the back side surface of the first insulating cylinder respectively so as to ensure that two adjacent isolators can be firmly attached and assembled when being spliced.

Furthermore, the isolator is made of a silica gel material.

And the sum of the distance from the second insulating cylinder of the first isolator to the insulating vertical rib and the distance from the second insulating cylinder of the second isolator to the insulating vertical rib is equal to the distance between the cable side wire hole and the device side wire hole.

Compared with the prior art, the utility model discloses following beneficial effect has: this isolator simple structure, design benefit can make up in a flexible way and freely adjust quantity and realize effectively keeping apart secondary screen cabinet test terminal, use safe, effective, convenient, and repeatedly usable, the environmental protection reduces the material that keeps apart the step and consumes the cost.

Drawings

Fig. 1 is a schematic structural diagram of a test terminal in a power failure inspection state in the prior art.

Fig. 2 is another schematic structural diagram of a test terminal in a power failure inspection state in the prior art.

FIG. 3 shows a prior art operating condition A schematic diagram of a test terminal.

Fig. 4 is another structural diagram of a test terminal in an operating state in the prior art.

Fig. 5 is an external structural view of the isolator according to the embodiment of the present invention.

Fig. 6 is a perspective structural diagram of an isolator according to an embodiment of the present invention.

Detailed Description

The present invention will be further explained with reference to the drawings and the embodiments.

It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

As shown in fig. 1 to 4, the test terminals of the secondary cubicle include wiring holes 11, 21 respectively provided at the cable side 100 and the device side 200 and a metallic connecting piece 20 provided between the wiring holes 11, 21 at both sides, a disconnection gap 30 is provided between the cable side 100 and the device side 200, the metallic connecting piece 20 when the cable side 100 is electrically connected to the device side 2 covers the disconnection gap 30 and both ends thereof are electrically connected to both sides of the disconnection gap 30 to connect the cable side 100 and the device side 200, and the wiring holes 11 at the cable side 100, the wiring holes 21 at the device side 200 and the metallic connecting piece 20 are arranged in a vertical array in the secondary cubicle.

As shown in fig. 5 and 6, this embodiment provides a secondary screen cabinet test terminal isolator that can splice, including insulating horizontal muscle 1 of rectangular shape, the insulating muscle 2, first insulating column 4 and the insulating cylinder 3 of erecting of rectangular shape, insulating 2 upper ends of erecting the muscle is connected with insulating horizontal muscle 1 one end, and insulating vertical muscle 2 is the L type with insulating horizontal muscle 1 promptly and is connected, vertical setting of first insulating column 4 is and perpendicular with insulating horizontal muscle 1, the insulating horizontal muscle 1 other end is connected in first insulating column 4 lower extreme side, 3 vertical connections in first insulating column lower extreme of second insulating cylinder, first recess 6 has been seted up to the leading flank 41 of first insulating column 4, the trailing flank 42 relative with the leading flank on the first insulating column 4 is equipped with the first lug 5 with 6 looks adaptations of first recess.

In this embodiment, the second insulating column 3 is perpendicular to the bottom surface of the first insulating column 4, and the central axes of the first insulating column 4 and the second insulating column 3 are on the same straight line.

In this embodiment, the first groove 6 and the first bump 5 are located on the same height of the first insulating column 4, the shape and the angle of the first groove 6 and the first bump 5 are the same, and the first groove 6 and the first bump 5 are respectively perpendicular to be concave and convex along the front side and the back side of the first insulating column 4, so as to ensure that two adjacent isolators can be firmly attached and assembled when being spliced. Preferably, the first projection 5 has a first-step block 51 and a second-step block 52 with wide top and narrow bottom, and the first groove 6 has a first-step groove 61 and a second-step groove 62 with wide inside and narrow outside that are completely matched with the first mold 5, and a first concave 63 with the same height and width as the second-step block 52.

In this embodiment, the isolator adopts the silica gel material preparation, outside the insulating properties who guarantees the isolator, can also guarantee that second insulation cylinder 3 can with wiring hole zonulae occludens, be difficult to drop.

In this embodiment, the length distance between the second insulating column 3 on the insulating transverse bar 1 and the end of the other end of the insulating transverse bar 1 is set to be equal to the distance between the disconnection gap 30 and the wiring hole 11 on the cable side 100 in the actual secondary screen cabinet.

The utility model discloses a further embodiment, including two the isolator is first isolator and second isolator respectively, the distance sum of the second insulating cylinder to the insulating perpendicular muscle of first isolator and the distance of the second insulating cylinder to the insulating perpendicular muscle of second isolator equals the distance between cable side junction hole and device side junction hole.

When isolating the test terminal in the power failure maintenance state, the metal connecting sheet 20 does not connect the disconnection gap 30, the cable side 100 and the device side 200 are disconnected, at the moment, one side of the insulating transverse rib 1 faces downwards, the insulating vertical rib 2 is inserted into the disconnection gap 30, and the second insulating column 3 is inserted into the wiring hole 11 of the cable side 100 to realize isolation.

When the test terminal in the running state is isolated, the metal connecting sheets are connected with the disconnection gap, the other sides of the insulating transverse ribs of the first isolator and the second isolator face downwards, and the second insulating cylinders of the first isolator and the second isolator are respectively inserted into the wiring hole in the cable side and the wiring hole in the device side, so that isolation is realized.

When isolating a plurality of continuous terminals, the first mold 5 of one isolator is inserted in alignment with the first concave 63 of the first groove 6 of the other mold to make the two side faces of the two isolators tightly attached, and then the one isolator is rotated with the perpendicular bisector of the front side face 41 of the first insulating cylinder 4 as an axis to make the first mold 5 of one isolator completely contact with the two-stage stepped groove of the first groove 6 of the other mold. The isolators are firmly installed after combination and are not easy to fall off.

The utility model discloses a secondary screen cabinet test terminal isolator simple structure, portable light and handy, circulated reuse, the environmental protection reduces the material that keeps apart the step and consumes the cost, can realize the effective isolation of secondary screen cabinet test terminal, and isolator insulating properties is good, the reliability is high. The isolation that can nimble combination be applicable to different figure terminals, and the installation is firm between the isolator after the combination, is difficult for droing.

While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made without departing from the spirit and scope of the invention. However, any simple modification, equivalent change and modification made to the above embodiments according to the technical substance of the present invention still belong to the protection scope of the technical solution of the present invention.

Claims (5)

1. The utility model provides a secondary screen cabinet test terminal isolator that can splice, its characterized in that erects muscle, first insulating cylinder and second insulating cylinder including insulating horizontal muscle, insulation, insulating muscle upper end of erecting is connected with insulating horizontal muscle one end, the vertical setting of first insulating cylinder is perpendicular with insulating horizontal muscle, the insulating horizontal muscle other end is connected in first insulating cylinder lower extreme side, the vertical connection of second insulating cylinder is in first insulating cylinder lower extreme, first recess has been seted up to the leading flank of first insulating cylinder, the trailing flank relative with the leading flank on the first insulating cylinder is equipped with the first lug with first recess looks adaptation.

2. The splittable secondary screen cabinet test terminal isolator of claim 1, wherein the second insulating cylinder is perpendicular to the bottom surface of the first insulating cylinder, and the central axes of the first insulating cylinder and the second insulating cylinder are collinear.

3. The splicable secondary screen cabinet test terminal isolator of claim 1, wherein the first groove and the first bump are located at the same height of the first insulating cylinder, the shape and angle of the first groove and the first bump are the same, and the first groove and the first bump are vertically recessed and protruded along the front side and the back side of the first insulating cylinder, respectively, so as to ensure that two adjacent isolators can be firmly attached and assembled when being spliced.

4. The splicable secondary screen cabinet test terminal isolator of claim 1, wherein the isolator is made of silica gel.

5. The splicable secondary screen cabinet test terminal isolator according to any one of claims 1 to 4, comprising two isolators, namely a first isolator and a second isolator, wherein the sum of the distance from the second insulating cylinder of the first isolator to the insulating vertical rib and the distance from the second insulating cylinder of the second isolator to the insulating vertical rib is equal to the distance between the cable side wire hole and the device side wire hole.

Images