CN105720391B - A kind of suspension earthing rod and its application method - Google Patents

Abstract

The invention discloses a suspended grounding post and a method for using the same, which relate to the field of electric machinery. The grounding column includes a conductive metal column, and an insulating layer is wrapped on the circumferential surface of the conductive metal column, and a plurality of annular grooves (3) are equally spaced on the axial surface of the insulating layer, and the depth of the annular grooves (3) is smaller than that of the insulating layer. The thickness of the insulating layer between two adjacent annular grooves (3) is provided with a section of conductive metal pillar without annular insulating layer, and two adjacent annular grooves (3) are sleeved with The stepped cylinder device, the stepped cylinder device includes two pairs of stepped cylinders corresponding to each other, and the two pairs of stepped cylinders are fit and fitted on the outer surface of the insulating layer between two adjacent annular grooves (3); the The suspended grounding wire can ensure that the wires drained to the ground have sufficient and effective contact area with it, avoiding the wires drained to the earth from slipping off the suspended grounding wire, and at the same time solve the problem of the suspension wire position of the staff in the work area.

Description

Suspended grounding post and method of use thereof

【Technical field】

The invention relates to the field of electric machinery, in particular to a suspended grounding post and a method for using the same.

【Background technique】

The grounding line is the line directly connected to the earth, and it can also be called a safety return line. When it is in danger, it will directly transfer the high voltage to the earth, which can be regarded as a lifeline. Among them, the grounding wire in the power system is an important tool to ensure the staff when there is an unexpected voltage on the equipment and lines that have been powered off. According to the regulations issued by the Ministry, the ground wire must be made of bare copper soft wire above 25mm2. The lower part of the existing distribution network grounding ring is connected with the bare part, which is easy to cause trees and metal objects to collide; at the same time, the contact point of the grounding ring is small, the grounding is unreliable and easy to shake, and the phenomenon of reverse power transmission is prone to occur, which is likely to cause casualties and Accidents that damage equipment occur.

In recent years, the indoor equipment has become fully enclosed in the central cabinet. This method not only ensures the personal safety of the staff, but also prevents the phenomenon of small animals from entering by mistake, and lays the foundation for safe work. However, although new changes have been made to the outdoor wire connection method, such as the heat-shrinkable insulation material on the busbar, holes are opened on the busbar, and the grounding ring is fixed by pre-embedded bolts, but because the grounding rings are in the same direction, the same phase location, and the contact area between the grounding ring and the grounding ring is small due to the soaking in the wind and rain all year round, and the hanging grounding wire is prone to fall off and rust, so that it cannot lead the current into the earth well, and there is a serious danger; More importantly, the long-term fixation of the grounding ring under the ventral side of the wire will easily lead to insufficient safety distance when passers-by carry heavy metal objects, which may cause discharge and cause personal injury to passers-by. At present, although such problems have not yet occurred in large numbers, there are a lot of hidden risks, and once an outbreak occurs, the consequences will be disastrous.

Therefore, in order to avoid such risks, a suspended grounding post has been developed, which not only solves the position of the staff's suspended grounding wire in the work area, but also ensures the effective contact area and safe and reliable contact point of the grounding wire.

【Content of invention】

In order to solve the above-mentioned problems in the prior art, the object of the present invention is to provide a suspended grounding post, which can ensure that the wires drained to the earth have a sufficient and effective contact area with it, and prevent the wires drained to the earth from The suspension grounding wire slips off, so that the unexpected voltage cannot be drained to the ground; at the same time, the position of the suspension grounding wire in the work area of the staff is solved; and the drainage wires of various shapes of hooks are satisfied.

In order to achieve the above object, the present invention adopts the following technical solutions to achieve.

A suspended ground post, the two ends of the ground post are respectively hung on the wires, the ground post includes a conductive metal post, the circumferential surface of the conductive metal post is wrapped with an insulating layer, and a plurality of Annular groove, the depth of the annular groove is less than the thickness of the insulating layer, wherein a section of conductor metal column without annular insulating layer is opened on the circumferential surface of the insulating layer between two adjacent annular grooves, and two adjacent The annular groove ferrule has a stepped cylinder device, and the stepped cylinder device includes two pairs of stepped cylinders corresponding to each other, and the two pairs of stepped cylinders are fitted on the outer surface of the insulating layer between two adjacent annular grooves superior.

A further improvement is: the stepped cylinder device includes a first stepped cylinder and a second stepped cylinder, and the inner surfaces of one end of the first stepped cylinder and the second stepped cylinder are respectively provided with a first annular baffle and a second circular baffle. A third annular baffle and a fourth annular baffle are respectively provided on the outer surface of the other end; wherein the first annular baffle and the second annular baffle are oppositely set in two adjacent grooves, and the first The stepped cylindrical barrel and the second stepped cylindrical barrel are respectively provided with a third stepped cylindrical barrel and a fourth stepped cylindrical barrel, and the inner surfaces of both ends of the third stepped cylindrical barrel are respectively provided with a fifth annular baffle and a sixth annular baffle, The ninth annular baffle and the tenth annular baffle are respectively arranged on the outer surface; the seventh annular baffle and the eighth annular baffle are respectively arranged on the inner surface of both ends of the fourth stepped cylinder, and the third annular baffle is respectively arranged on the outer surface. The eleventh annular baffle and the twelfth annular baffle; wherein, the fifth annular baffle and the seventh annular baffle are clamped on the third annular baffle and the fourth annular baffle respectively.

The further improvement is: the third stepped cylinder or the fourth stepped cylinder is covered with a fifth stepped cylinder, the inner surface of any end of the fifth stepped cylinder is provided with a thirteenth annular baffle, and the thirteenth annular baffle The ferrule is inserted between the ninth annular baffle and the tenth annular baffle or between the eleventh annular baffle and the twelfth annular baffle.

A further improvement is that: the length of the fifth stepped cylinder is smaller than the distance between the ninth annular baffle and the tenth annular baffle or the distance between the eleventh annular baffle and the twelfth annular baffle.

A further improvement is that round holes are provided at corresponding positions on the tenth annular baffle and the twelfth annular baffle.

A further improvement is that: the cross-sectional shape of the conductive metal pillar without the annular insulating layer is made into a hexagonal shape, a rectangular shape, an elliptical shape or a rectangular shape.

A further improvement lies in: a method for using a suspended grounding post based on the characteristics of the above suspended grounding wire, including the following steps:

Step 1: First make hooks at both ends of the suspended grounding column, and then hang the hooks on the power transmission wires;

Step 2: Remove the fifth stepped cylindrical barrel and expose the tenth annular baffle on the third stepped cylindrical barrel and the twelfth annular baffle on the fourth stepped cylindrical barrel, and then pass through the tenth annular baffle and the twelfth annular baffle Twelve annular baffles pull the third stepped cylindrical barrel and the fourth stepped cylindrical barrel in opposite directions to expose the conductor metal column without the annular insulating layer;

Step 3: According to the shape of the hook at one end of the wire used to hang the grounding post, select conductor metal posts with different cross-sectional shapes, and then hang them on the surface of the conductor metal post, and connect the other end of the wire to the ground;

Step 4: After the maintenance work is finished, put away the suspended grounding pole according to the reverse steps above.

Compared with the prior art, the present invention has remarkable technical effects.

1. A suspension grounding column of the present invention, a section of conductive metal column without an annular insulating layer is provided on the circumferential surface of the insulating layer between two adjacent annular grooves, wherein the cross section of the conductive metal column without the annular insulating layer The shape is made into a rectangular shape, a hexamorphic shape, an oval shape or a rectangular shape, which is convenient for connecting the hook at one end of the wire of the grounding post, and the cross-sectional shape of different shapes is selected according to the hook of different shapes, which ensures an effective contact area. At the same time, it is also convenient for the staff to hang and connect wires in the working area; at the same time, two adjacent annular groove ferrules are equipped with a stepped cylinder device, and the stepped cylinder device contains two pairs of stepped cylinders corresponding to each other. The cylindrical barrel fits and fits on the outer surface of the insulating layer between two adjacent annular grooves, and the stepped cylindrical barrel device protects the conductor metal column without the annular insulating layer.

2. There is a fifth stepped cylinder to prevent rainwater from leaking into the conductor metal column without an annular insulating layer when it is raining, so as to ensure the normal use of the conductor metal column.

3. The length of the fifth stepped cylinder is smaller than the distance between the ninth annular baffle and the tenth annular baffle or the distance between the eleventh annular baffle and the twelfth annular baffle. This ensures that the fifth stepped cylinder does not interfere with the opening of the third and fourth stepped cylinders.

4. Round holes are provided at corresponding positions on the tenth and twelfth annular baffles. It is convenient for the staff to stand under the grounding column to operate, and it is also convenient to lock through the hook inside the round hole to prevent the third stepped cylinder and the fourth stepped cylinder from being opened arbitrarily with the wind, and then rainwater will enter and affect later use.

【Description of drawings】

Fig. 1 is the overall schematic diagram of a kind of suspension ground wire of the present invention;

Fig. 2 is A-A sectional view shown in Fig. 1;

Fig. 3 is the B-B sectional view shown in Fig. 1;

Fig. 4 is the C-C sectional view shown in Fig. 1;

Fig. 5 is a D-D sectional view shown in Fig. 1 .

In the figure: 1-conductor metal post; 2-insulating layer; 3-annular groove; 4-first stepped cylinder; 400-first annular baffle; 410-third annular baffle; 5-second stepped cylinder Tube; 500-second annular baffle; 510-fourth annular baffle; 6-third stepped cylinder; 600-fifth annular baffle; 610-sixth annular baffle; 620-ninth annular baffle; 630-the tenth annular baffle; 7-the fourth stepped cylindrical tube; 700-the seventh annular baffle; 710-the eighth annular baffle; 720-the eleventh annular baffle; 8-the fifth stepped cylindrical tube; 800 - Thirteenth annular baffle.

【Detailed ways】

The present invention is described in further detail below in conjunction with accompanying drawing:

As shown in Fig. 1, a suspension ground post of the present invention includes a conductive metal post 1, an insulating layer 2 is wrapped on the circumferential surface of the conductive metal post 1, and a plurality of holes are arranged at equal intervals on the axial surface of the insulating layer 2 a ring groove 3, the depth of the ring groove 3 is less than the thickness of the insulating layer 2, wherein a section of conductor metal without the ring insulating layer 2 is opened on the circumferential surface of the insulating layer 2 between two adjacent ring grooves 3 Column 1, and two adjacent annular grooves 3 are sleeved with a stepped cylinder device. The stepped cylinder device includes two pairs of stepped cylinders corresponding to each other, and the two pairs of stepped cylinders are fitted in two adjacent rings. Grooves 3 between the outer 2 surfaces of the insulating layer. The heat-shrinkable material is covered on the surface of the lower semi-circumference of the conductor metal column without the annular insulating layer.

The stepped cylindrical barrel device includes a first stepped cylindrical barrel 4 and a second stepped cylindrical barrel 5, and a first annular baffle 400 and a second stepped cylindrical barrel 5 are respectively provided on the inner surfaces of one end of the first stepped cylindrical barrel 4 and the second stepped cylindrical barrel 5. Two annular baffles 500, the outer surface of the other end is respectively provided with a third annular baffle 410 and a fourth annular baffle 510; wherein the first annular baffle 400 and the second annular baffle 500 are oppositely set on two adjacent In the annular groove 3, the first stepped cylindrical barrel 4 and the second stepped cylindrical barrel 5 are respectively sleeved with a third stepped cylindrical barrel 6 and a fourth stepped cylindrical barrel 7, and the inner surfaces of both ends of the third stepped cylindrical barrel 6 are respectively provided with There is a fifth annular baffle 600 and a sixth annular baffle 610, and the ninth annular baffle 620 and the tenth annular baffle 630 are respectively arranged on the outer surface; The seven annular baffles 700 and the eighth annular baffle 710 are respectively provided with an eleventh annular baffle 720 and a twelfth annular baffle on the outer surface; wherein, the fifth annular baffle 600 and the seventh annular baffle 700 are respectively The ferrule is sleeved on the third annular baffle 410 and the fourth annular baffle 510 .

Wherein, the third stepped cylindrical barrel 6 or the fourth stepped cylindrical barrel 7 is covered with a fifth stepped cylindrical barrel 8, and the inner surface of any end of the fifth stepped cylindrical barrel 8 is provided with a thirteenth annular baffle 800, and the thirteenth stepped cylindrical barrel 8 is provided with a thirteenth annular baffle plate 800, and The annular baffle 800 is inserted between the ninth annular baffle 620 and the tenth annular baffle 630 or between the eleventh annular baffle 720 and the twelfth annular baffle.

Wherein, the length of the fifth stepped cylinder 8 is smaller than the distance between the ninth annular baffle 620 and the tenth annular baffle 630 or the distance between the eleventh annular baffle 720 and the twelfth annular baffle. This prevents the fifth stepped cylinder from affecting the opening and closing of the third stepped cylinder and the fourth stepped cylinder.

Wherein, the tenth annular baffle 630 and the twelfth annular baffle are provided with round holes at corresponding positions. The round hole is convenient for the staff to stand under the grounding column to operate. The third step cylinder and the fourth step cylinder can be closed through the hook through the round hole and then pulled. At the same time, the two can be locked through the round hole after closing. Together.

Among them, the first annular baffle, the second annular baffle, the third annular baffle, the fourth annular baffle, the fifth annular baffle, the sixth annular baffle, the seventh annular baffle, the eighth annular baffle, The materials of the ninth annular baffle, the tenth annular baffle, the eleventh annular baffle, the twelfth annular baffle and the thirteenth annular baffle can all be insulating materials, such as non-conductive rubber materials.

As shown in Fig. 2, Fig. 3, Fig. 4, and Fig. 5, the cross-sectional shape of the conductive metal pillar without the annular insulating layer is made into a hexagonal shape, a rectangular shape, an elliptical shape or a rectangular shape. The staff can choose the corresponding cross-sectional shape according to the different shapes of the hooks of the wires connected to the grounding post, so as to ensure sufficient contact surface, expand the effective contact surface, and prevent the wires connected to the grounding post from falling on the grounding post with strong wind , affecting the normal function of the grounding post.

Wherein, the method for using the suspended grounding post includes the following steps:

Step 1: First make hooks at both ends of the suspended grounding column, and then hang the hooks on the power transmission wires;

Second step: remove the fifth stepped cylinder 8 and expose the tenth annular baffle 630 on the third stepped cylinder 6 and the twelfth annular baffle on the fourth stepped cylinder 7, and then pass through the tenth annular baffle The baffle plate 630 and the twelfth annular baffle plate pull the third stepped cylinder 6 and the fourth stepped cylinder 7 in opposite directions to expose the conductor metal column without the annular insulating layer;

Step 3: According to the shape of the hook at one end of the wire used to hang the grounding post, select conductor metal posts with different cross-sectional shapes, and then hang them on the surface of the conductor metal post, and connect the other end of the wire to the ground;

Step 4: After the maintenance work is finished, put away the suspended grounding pole according to the reverse steps above.

The tool adopts the new technology method of fixing and hanging the grounding position, which strictly and effectively improves the contact surface of the grounding position and improves the service limit and safe service life of the grounding appliance. Improve the efficiency and effectiveness management requirements in the work.

The operation method of the tool regulates the technical requirements for the management of safety tools and the requirements for the use of grounding wires, effectively prevents unsafe phenomena from being accidentally touched by metal objects, trees, and other foreign objects, and effectively improves the service life of the grounding wire And use the quality of safe use, thereby improving the safety and reliability of operators in construction, ensuring and preventing safety precautions at the construction site. The project operability adaptation and power system promotion.

The above content is only to illustrate the technical ideas of the present invention, and cannot limit the protection scope of the present invention. Any changes made on the basis of the technical solutions according to the technical ideas proposed in the present invention shall fall within the scope of the claims of the present invention. within the scope of protection.

Claims (6)

1. a kind of suspension earthing rod, which is articulated on electric wire respectively, which is characterized in that including conductor metal column (1), be enclosed with insulating layer (2) in conductor metal column (1) peripheral surface, insulating layer (2) axial surface is first-class be equipped at intervals with it is multiple Annular groove (3), the depth of annular groove (3) are less than the thickness of insulating layer (2), wherein between two adjacent annular grooves (3) Insulating layer (2) peripheral surface on offer one section of conductor metal column (1) without annular insulating layer (2), and two are adjacent Annular groove (3) is covered with stepped cylindrical wound packages and sets, and it includes one-to-one two secondary ladder circle column casings that stepped cylindrical wound packages, which is set, And two secondary ladder circle column casing engagement sleeves on insulating layer (2) outer surface between two adjacent annular grooves (3)；

It includes the first ladder circle column casing (4) and the second ladder cylindrical drum (5), the first ladder circle column casing that stepped cylindrical wound packages, which is set, (4) and on one end inner surface of the second ladder cylindrical drum (5) first annular baffle (400) and the second ring baffle are respectively equipped with (500), third ring baffle (410) and fourth annular baffle (510) are respectively equipped on other end outer surface；

It is fabricated to hexagonal shape, rectangular shape, ellipse without the cross-sectional shape of the conductor metal column (1) of annular insulating layer (2) Circular shape or rectangular shape.

2. suspension earthing rod according to claim 1, which is characterized in that first annular baffle (400) and the second annular gear Plate (500) is sleeved in opposite directions in two adjacent annular grooves (3), the first ladder circle column casing (4) and the second ladder cylindrical drum (5) Third ladder circle column casing (6) and fourth order ladder cylindrical drum (7) are arranged with respectively, on the inner surface of third ladder circle column casing (6) both ends It is respectively equipped with the 5th ring baffle (600) and the 6th ring baffle (610), the 9th ring baffle is respectively equipped on outer surface (620) and the tenth ring baffle (630)；It is respectively equipped with the 7th ring baffle on the inner surface of fourth order ladder cylindrical drum (7) both ends (700) and the 8th ring baffle (710) the 11st ring baffle (720) and the tenth second ring baffle, are respectively equipped on outer surface； Wherein, the 5th ring baffle (600) and the 7th ring baffle (700) are fastened in third ring baffle (410) and Fourth Ring respectively On shape baffle (510).

3. suspension earthing rod according to claim 2, which is characterized in that third ladder circle column casing (6) or fourth order ladder circle The 5th ladder circle column casing (8) is arranged on column casing (7), the 5th ladder circle column casing (8) any one end inner surface is equipped with the 13rd Ring baffle (800), the 13rd ring baffle (800) be fastened in the 9th ring baffle (620) and the tenth ring baffle (630) it Between or the 11st ring baffle (720) and the tenth second ring baffle between.

4. suspension earthing rod according to claim 3, which is characterized in that the 5th ladder circle column casing (8) length is less than the 9th The distance between ring baffle (620) and the tenth ring baffle (630) or the 11st ring baffle (720) are kept off with the tenth second ring The distance between plate.

5. suspension earthing rod according to claim 2, which is characterized in that the tenth ring baffle (630) and the tenth second ring Corresponding position is equipped with circular hole on baffle.

6. the application method of the suspension earthing rod according to claim 1-5 any one, includes the following steps as follows：

The first step：Suspension earthing rod both ends are fabricated to hook respectively first, then hook is suspended on transmission pressure；

Second step：5th ladder circle column casing (8) is removed and exposes the tenth ring baffle on third ladder circle column casing (6) (630) and the tenth second ring baffle in fourth order ladder cylindrical drum (7), then pass through the tenth ring baffle (630) and the 12nd Third ladder circle column casing (6) and fourth order ladder cylindrical drum (7) are pulled open exposing without annular insulation by ring baffle round about The conductor metal column (1) of layer (2)；

Third walks：The conductor metal of varying cross-section shape is selected according to the hook-shaped of conducting wire one end of suspension earthing rod Column (1) is then articulated on conductor metal column (1) surface, the other end connection the earth of conducting wire；

4th step：After service work, suspension earthing rod is packed up by above-mentioned reverse procedure.