JP5105857B2 - Simple scaffolding device for insulator - Google Patents

Description

  The present invention relates to a simple scaffold device for an insulator that is attached to an insulator that is erected, and in particular, to maintain and inspect a line switch such as a circuit breaker or a disconnect switch used in a high voltage circuit such as a substation and its surroundings. The present invention relates to a simple scaffold device for an insulator.

  A line switch provided in a high-voltage circuit such as a substation is required to have high insulation, and thus is provided on an insulator group, and its main circuit switching unit is regularly inspected. For example, as shown in FIG. 7, a line switch 1 provided in a circuit through which a large current of 2000 A or more flows has an insulator 2 having a height of about 800 mm stacked in two stages on a gantry 3 at predetermined intervals. Arranged on nine insulator groups arranged in three rows and three columns.

  Such a line switch is passed to the insulators 2 and 2 installed on both sides with a rotation center on the insulators 2 and 2 provided upright in the center, and in a horizontal plane. The blade 4 has three blades 4 to be rotated, and each blade 4 is illustrated by a link mechanism (not shown) connected to an operation rod 6 driven by a driving device 5 disposed at a lower portion of the gantry 3. The open circuit state is synchronized with the closed circuit state rotated by 70 °.

  When maintaining and inspecting such a line switch 1 and its surroundings, for example, the operator 7 hangs a foot 7a on the flange-like portions of the upper and lower insulators 2 and 2 and connects to a waist belt. The body was supported by wrapping 9 between the upper insulator 2 and the upper flange, and the nine double-layered insulators 2 and 2 were being moved in sequence.

  By the way, a simple scaffolding that can be attached to a utility pole has been proposed for work such as replacement and repair of a communication line and a feeder line (overhead line).

  Patent Document 1 is made of a lightweight and high mechanical strength material, and a main body having a substantially square cross section, and a first hook that can be inserted into a scaffolding nail of an electric pole at the top of the main body, The lower part includes a second hook that can be engaged with a scaffolding nail of a utility pole, a scaffold provided in a direction perpendicular to a side surface of the body, and a band for fixing the body provided near the scaffold to the utility pole. A portable simple scaffold for power poles is described.

  Further, in Patent Document 2, a bolt receiving tube for inserting a scaffolding bolt of an electric pole is attached, and an auxiliary plate for attaching a back surface in the axial direction of one side of the electric pole is provided. A simple electric pole top scaffold is described in which upper and lower fastening bands to which male and female connectors are connected are respectively attached, and on the other hand, a straddle is shelved horizontally on the surface of the accessory plate.

Japanese Utility Model Publication No. 05-10642 Japanese Utility Model Publication No. 06-44954

  However, since the insulator is formed of ceramic as a material, there is a risk that it will be damaged when a hard member with poor elasticity comes into contact with it or gives an impact, and its shape is a large diameter portion and a small diameter portion. It is a special thing that taper continuously as a whole.

  Therefore, there is a demand for an apparatus that cannot attach a conventional simple scaffold as it is, and can securely attach the scaffold without damaging the insulator when it is attached to a standing insulator.

In the present invention, the means for solving the above-described problem is a simple scaffold device for an insulator, in which a scaffold portion is disposed on an insulator in which a large-diameter portion and a small-diameter portion arranged upright are continuous. A belt member that is flexible and is wound around the small-diameter portion of the insulator so that the length of the insulator can be adjusted, and can be fixed to the insulator; and the belt member is attached and formed of a hard material, When the belt member is wound around the small-diameter portion of the insulator , two mounting substrates are arranged around the large-diameter portion positioned above and below the small-diameter portion, and the mounting substrates are insulated from the mounting substrates. A scaffold member that extends in a substantially horizontal direction when arranged on the insulator, and is fixed to protrude to the insulator side of the mounting board, and when the belt member is wound around the small diameter portion of the insulator , the scaffold member is located above the small diameter portion. position That the the rubber spacer member to which the to the large-diameter portion elastic contact with the upwardly facing surface of which is positioned below the lower surface and the small diameter portion of the large diameter portion, the upper fixing point of the belt member of the insulator And an auxiliary fixing member that is connected to the scaffold member and supports the scaffold member upward.

According to the present invention, the insulator simple scaffold for the wrapped insulator belt member and the auxiliary fixing member is erected, two attachment substrate scaffolding plate member Ru extends substantially horizontally by the belt member is an insulating Since it is fixed to the insulator and supported by the auxiliary support member, the scaffold can be reliably disposed on the standing insulator without damaging the insulator.

  Hereinafter, embodiments of a simple scaffold device for an insulator according to the present invention will be described. FIG. 1 is a perspective view showing a configuration of a simple scaffold device for an insulator according to an embodiment of the present invention. A simple scaffolding device 100 for an insulator according to the present example includes a belt member 110 that is wound around a small-diameter portion of the insulator 2 so that the length of the insulator 2 can be adjusted and can be fixed to the insulator, and the belt member is attached to the rigid material. Are formed along the contour of the insulator and curved when the belt member 110 is wound around the insulator 2, and two attachment boards 130 arranged around the insulator 2, and attached to each attachment board 130. A scaffold plate member 140 that constitutes a scaffold member that extends substantially horizontally when the substrate 130 is disposed on the insulator 2, and a scaffold plate member 150 that is attached to the scaffold plate member 140 and on which the operator 7 places the foot 7 a. Prepare.

  In addition, a simple scaffold device 100 for an insulator according to the present example includes an auxiliary belt member 160 fixed above the fixing portion of the belt member of the insulator 2, and a connecting belt that connects the belt member and the auxiliary belt member. A member 170 is provided.

  The belt member 110 is a belt-like member made of a material having flexibility and a predetermined strength, for example, a nylon cloth, and has a strength capable of supporting an operator without being damaged by the insulator 2 when wound around the insulator 2. It is.

  In this example, the belt member 110 includes the belt length adjusting member 120 at the end of the cloth band 111, and the belt member 110 can be formed as an annular body. As shown in FIG. 5, the belt length adjusting member 120 is formed by forming a folded member 122 that connects the opposite sides of the belt length adjusting member 120 to a substantially square frame member 121.

  When the belt length adjusting member 120 is used to adjust the length of the cloth band 111 to adjust the size of the annular body formed by the belt member 110, one end of the cloth band 111 is connected to the folded member as shown in FIG. The other end of the cloth band 111 is attached from one side of the frame member 121 to the opposite side of the insertion frame member 121 and returned to the insertion side. Thereby, the cloth band 111 can be adjusted in length and is firmly fixed without deviating from the adjusted length.

  In this example, the belt length adjusting member having the above-described configuration is used. However, as long as the length of the cloth band 111 can be adjusted and fixed at an arbitrary position, the length adjusting device having another configuration can be used. May be used.

  Next, the attachment substrate 130 of the simple scaffold device 100 for an insulator, the scaffold plate member 140 and the scaffold plate member 150 constituting the scaffold member will be described. 2 is a plan view showing a mounting board, a scaffolding plate member and a scaffolding board material of the simple scaffolding device for an insulator shown in FIG. 1, and FIG. 3 is a mounting board and a scaffolding plate of the simple scaffolding device for an insulator shown in FIG. It is a figure which shows a member and a scaffold board | plate material, (a) is sectional drawing equivalent to the AA line in FIG. 2, (b) is sectional drawing equivalent to the BB line in FIG.

  As shown in FIGS. 2 and 3, the mounting board 130 includes a base 131 made of, for example, a stainless steel that is curved so as to follow the outer diameter of the insulator 2 to be mounted. The base 131 has two belt insertion holes 132 provided so that the cloth 111 can be inserted from the inside to the outside, and the cloth 111 provided on the surface side of the base 131 is inserted along the base 131. Two belt holding portions 133 that can be formed are formed.

  The attachment substrate 130 is attached to the belt member 110 by the cloth band 111 being inserted through the belt insertion hole 132 and the belt holding portion 133. In this example, the attachment board 130 is attached along the belt member 110 so that the position thereof can be changed. For this reason, it can apply to the insulator 2 of various diameters.

  In this example, the scaffold plate member 140 and the scaffold plate member 150 constitute a scaffold member. The scaffold plate member 140 is a plate member made of stainless steel having a rectangular cross section, and is welded and fixed to the base 131 of the mounting board 130, and is stretched in a substantially horizontal direction when the mounting board 130 is disposed on the insulator 2. It is arranged to be put out. In this example, the plate main body 141 is formed with a slide hole portion 142 for attaching the scaffold plate member 150 and a bolt insertion hole 143 into which the eye bolt 145 for attaching the connecting belt member 170 is inserted. In addition, a locking collar 144 for preventing the scaffold plate 150 from coming off is formed at the outer end of the plate body 141.

  In this example, two spacer members 135 are attached to the side of the attachment substrate 130 where the insulator 2 is in contact. The spacer member 135 is made of, for example, synthetic rubber that is elastically contacted with the insulator with a large frictional force. The spacer member 135 protrudes from the spacer body 136 having a rectangular cross section as shown in FIG. 3B. The mounting portion 137 is formed and has a substantially dovetail cross section.

  Further, in this example, the base 131 is provided with a dovetail-shaped locking groove 134 that fits the mounting portion 137 of the spacer member 135 along the arc of the mounting substrate 130. The spacer member 135 is attached to the attachment substrate 130 by fitting. Thereby, the deteriorated spacer member 135 can be replaced.

  In this example, when the simple insulator device 100 for an insulator is attached to the insulator 2, the spacer member 135 is in contact with the insulator 2, and the attachment substrate 130 is not in direct contact with the insulator 2, and the insulator 2 In addition to preventing damage, a large frictional force is generated between the spacer member 135 and the insulator 2 to securely fix the insulator scaffolding device 100 to the insulator 2.

  The scaffold board 150 includes a scaffold body 151 that covers the periphery of the plate body 141 of the scaffold plate member 140, and a slide bar 152 that is fixed inside the scaffold body 151 and is inserted into the slide hole 142. In this example, a non-slip groove 153 is formed on the upper surface of the scaffold body 151.

  In this example, due to the configuration of the scaffold plate member 140 and the scaffold plate member 150, the scaffold plate member 150 can be slid inward along the scaffold plate member 140 and disposed in a reduced manner. For this reason, the scaffolding plate member 140 and the scaffolding plate material 150 do not need to be bulky when storing, transporting, or mounting the simplified scaffold device 100 for an insulator.

  Moreover, the simple scaffold device 100 for an insulator according to this example includes an auxiliary belt member 160 and a connecting belt member 170 as auxiliary fixing members. The auxiliary belt member 160 is configured to be shorter than the belt member 110 and is fixed above the fixing portion of the belt member 110 of the insulator 2. The auxiliary belt member 160 includes a belt member 161 and an auxiliary belt length adjusting member 162. In this example, the belt member 161 has the same structure as the belt 111 and the auxiliary belt length adjusting member 162 has the same configuration as the belt length adjusting member 120.

  In the simple insulator scaffolding device 100 according to this example, the belt member 110 and the auxiliary belt member 160 are connected by two connecting belt members 170.

  The connecting belt member 170 is a so-called nylon sling made of nylon, and an upper ring portion 171 is formed at the upper end of the connecting belt member 170, and the auxiliary belt member 160 is inserted therein. A lower ring portion 172 is formed at the lower end of the connecting belt member 170, and a hook member 174 is attached via a shackle 173. The hook member 174 is provided with a detachment preventing member 175.

  In this example, the hook member 174 is locked to the ring portion of the eye bolt 145 fixed to the bolt insertion hole 143 of the scaffold plate member 140 with a nut 146.

  Thereby, the load concerning the belt member 110 can be distributed to the auxiliary belt member 160, and the simple scaffold device 100 for an insulator can be reliably attached to the insulator 2.

  Next, the case where the simple insulator device 100 for insulators according to this example is attached to the insulator 2 will be described. FIG. 6 is a perspective view showing a state where the simple scaffolding device for an insulator shown in FIG. 1 is attached to the insulator. In order to attach the simplified insulator device 100 for an insulator according to this example to the insulator 2 that is erected, first, the belt member 110 is firmly attached to the insulator 2 while the length thereof is adjusted by the belt length adjusting member 120. At this time, the belt member 110 is attached to the small diameter portion of the insulator 2 and attached so that the spacer members 135 of the attachment substrates 130 and 130 are in contact with the insulator 2.

  Next, the auxiliary belt member 160 is attached to the small diameter portion of the insulator 2 at a position above the attachment position of the belt member 110 and separated by a predetermined dimension. At this time, considering the length of the connecting belt member 170 that connects the belt member 110 and the auxiliary belt member 160, the connecting belt member 170 is tensioned so that the load of the belt member 110 is transmitted to the auxiliary belt member 160. The attachment position is selected.

  Note that a plurality of lengths of the connecting belt member 170 may be prepared, and the connecting belt member 170 may be changed depending on the state of the insulator 2 to which the simple insulator device 100 for insulator is attached. The auxiliary belt member 160 is attached to the insulator 2 with two connecting belt members 170 attached thereto.

  Then, the scaffold plate member 150 is pulled out from the scaffold plate member 140, the eye bolt 145 is inserted into the bolt insertion hole 143 and fixed with the nut 146, and the hook member 174 attached to the connecting belt member 170 is hooked on the eye bolt 145.

  The simple insulator device 100 for an insulator can be attached to the insulator 2 by the above procedure. Note that the order of attaching the belt member 110 and the auxiliary belt member 160 and the timing of drawing the scaffold plate 150 from the scaffold plate member 140 can be changed as appropriate.

  As described above, according to the simple insulator device 100 for an insulator according to the present example, the scaffold can be reliably disposed on the insulator that is erected without damaging the insulator.

  In the present invention, the connection belt member 170 has been described as having a fixed length or a plurality of lengths. However, the connection belt member 170 may be the same as the belt length adjustment member, for example. A known length adjusting device such as a structure or a belt winding device can be provided. In this case, after the belt member 110 and the auxiliary belt member 160 are attached to the insulator 2, the length of the connecting belt member 170 is increased. Since it can be adjusted, it is possible to cope with various situations with one type of connecting belt member 170, and it is possible to adjust the supporting force of the scaffold member by the connecting belt member.

It is a perspective view which shows the structure of the simple scaffold apparatus for insulators which concerns on embodiment of this invention. It is a top view which shows the attachment board | substrate, the scaffold plate member, and the scaffold board | plate material of the simple scaffold apparatus for insulators shown in FIG. It is a figure which shows the attachment board | substrate of the simple scaffold apparatus for insulators shown in FIG. 1, a scaffold plate member, and a scaffold board | plate material, (a) is sectional drawing equivalent to the AA line in FIG. 2, (b) is FIG. 3 is a cross-sectional view corresponding to the line BB in FIG. 2. It is a perspective view which shows the connection belt member of the simple scaffold apparatus for insulators shown in FIG. It is a perspective view which shows the belt member and length adjustment member of the simple scaffold apparatus for insulators shown in FIG. It is a perspective view which shows the state which attached the simple scaffold apparatus for insulators shown in FIG. 1 to the insulator. It is explanatory drawing which shows the maintenance operation | work of the apparatus with which the conventional insulator was attached.

Explanation of symbols

2 Insulator 100 Insulator Insulator Scaffolding Device 110 Belt Member 120 Belt Length Adjustment Member 130 Mounting Substrate 135 Spacer Member 140 Scaffold Plate Member (Scaffold Member)
150 Scaffolding board material (scaffolding member)
160 Auxiliary belt member (auxiliary fixing member)
170 Connecting belt member (auxiliary fixing member)

Claims (6)

A simple scaffold device for an insulator in which a scaffold portion is disposed on an insulator in which a large-diameter portion and a small-diameter portion that are arranged upright are continuous ,
A belt member that has flexibility and is wound around the small-diameter portion of the insulator so as to be adjustable in length, and can be fixed to the insulator;
The belt member is attached and is formed of a hard material, and when the belt member is wound around the small-diameter portion of the insulator , two attachments are arranged around the large-diameter portion positioned above and below the small-diameter portion. A substrate,
It protrudes and is fixed to the insulator side of the mounting substrate, and when the belt member is wound around the small diameter portion of the insulator, the large diameter portion is positioned above the small diameter portion and the downward surface of the small diameter portion is below the small diameter portion. A rubber spacer member elastically contacting the upward surface of the large-diameter portion located;
A scaffold member that is disposed on each of the mounting substrates and projects substantially horizontally when the mounting substrate is disposed on an insulator;
An auxiliary fixing member that is fixed above the fixing portion of the belt member of the insulator and connected to the scaffold member and supports the scaffold member upward;
A simple scaffold device for an insulator, comprising: 2. The mounting board is formed to be curved along the outer shape of the insulator, the scaffold member is disposed at a central portion, and the pair of spacer members are replaceably disposed at both side portions. The simple scaffold apparatus for insulators as described.   The insulation according to claim 1, wherein the scaffold member includes a scaffold plate member fixed to the mounting substrate, and a scaffold plate member slidably disposed on the scaffold plate member. A simple scaffold device for insulators. Said mounting substrate, said insulator is curved such that along the outer shape of the insulator simple scaffold for that claim 1, wherein along a belt member is disposed repositionable. The auxiliary fixing member has flexibility, is wound around the insulator so as to be adjustable in length, and is fixed above a fixing portion of the belt member of the insulator, and the auxiliary belt member And a connecting belt member for connecting the scaffold member. 5. The simplified scaffold device for an insulator according to claim 1.   6. The simple scaffolding device for an insulator according to claim 5, wherein the connecting belt member is provided with an adjusting device for adjusting an overall length.

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