JP5252903B2 - Suspension insulator device - Google Patents

Description

  The present invention relates to a suspended insulator device provided with an arc horn that performs predetermined arc discharge in order to prevent destruction of the insulator due to lightning.

  Conventionally, as this type of suspended insulator device, there is provided an apparatus main body having an insulator, an arc horn for generating a predetermined arc discharge to prevent destruction of the insulator during a lightning strike, and an electric wire support portion for supporting the electric wire, and a steel tower. In some cases, the apparatus main body is connected to a support arm provided to the apparatus, and connection support means (a clevis, a mounting bracket, or the like) that supports the apparatus main body in a swingable manner (see, for example, Patent Document 1).

The suspension lever device is supported by the connection support means so as to be swingable, for example, by swinging the apparatus main body in a strong wind so that an excessive load is not applied to the connection support means. The support means can be prevented from being damaged.
Japanese Examined Patent Publication No. 7-24171 JP 2006-196396 A

  In the conventional hanging insulator device, when the device main body swings greatly during strong winds, the arc horn of the device main body may come into contact with the support arm and be deformed by the impact. If the arc horn is deformed, a desired arc discharge is not performed, and there is a possibility that the insulator is damaged during a lightning strike.

  Therefore, an object of the present invention is to provide a suspended lever device that can prevent the arc horn from being deformed even if the device main body swings and an impact is applied to the arc horn.

This invention is for solving said subject, Comprising: It has an insulator, the arc horn which generate | occur | produces predetermined arc discharge in order to prevent destruction of an insulator at the time of a lightning strike, and the electric wire support part which supports an electric wire provided with a device main body, the suspension insulator apparatus comprising a coupling support means and connecting the device body to a predetermined connecting position for supporting the main body swingably dated object preparative, said arc horn predetermined arc A main arc horn that generates electric discharge and an auxiliary arc horn for transferring the arc generated in the vicinity of the insulator to the main arc horn. In order to absorb this, an elastic part capable of elastic deformation is provided in the middle part or the base end part of the auxiliary arc horn .

  According to such a configuration, even if an impact is applied to the arc horn due to the swinging of the apparatus main body, the elastic portion is elastically deformed and buffered, whereby the arc horn can be prevented from being deformed due to the impact.

Further , according to this configuration, since the elastic part is provided in the auxiliary arc horn, even if an impact is applied to the auxiliary arc horn due to the swinging of the apparatus main body, the elastic part elastically deforms and cushions. Thus, deformation of the auxiliary arc horn due to this impact can be prevented.

  Further, the suspension lever device according to the present invention includes the main arc portion for picking up an arc generated in the vicinity of the lever and the support portion attached to the main body of the device and supporting the main body portion, and the elastic arc horn device according to the present invention. A configuration in which the portion is provided in the middle portion or the base end portion of the support portion can be employed.

  According to such a configuration, the main function of the main body part for transferring the arc to the main arc horn is not impaired, and even if the apparatus main body swings and an impact is applied to the auxiliary arc horn, Deformation of the auxiliary arc horn can be prevented by buffering due to elastic deformation of the provided coil spring.

  Moreover, the suspension lever apparatus according to the present invention may employ a coil spring for the elastic portion.

  According to such a configuration, by adopting a coil spring in the elastic portion, it becomes possible to absorb any impact from any direction with respect to the arc horn. It is possible to reliably prevent the horn from being deformed.

  According to the present invention, even if the apparatus main body swings and an impact is applied to the arc horn, deformation of the arc horn can be prevented.

  The best mode for carrying out the suspension lever apparatus according to the present invention will be described below with reference to the drawings. 1 to 3 show a first embodiment of a suspended lever apparatus.

  As shown in FIG. 1, the hanging insulator device 1 includes a porcelain insulator 2 and metal arc horns 31 (31 a, 31 b) and 32 that generate a predetermined arc discharge to prevent destruction of the insulator 2 during a lightning strike. (32a, 32b) and an apparatus main body 5 having an electric wire support part 4 for supporting an electric wire, and the apparatus main body 5 is connected to a predetermined mounting position of a steel tower, which is an object to be mounted, to which the suspended lever apparatus 1 is mounted. The apparatus main body 5 is provided with connection support means 6 for swingably supporting the apparatus main body 5. The apparatus main body 5 of the suspension insulator apparatus 1 is attached via a connection support means 6 to a support arm that extends in the left-right direction from the middle part of the steel tower.

  In the present embodiment, a plurality of insulators 2 are connected in series to form one elongated insulator series 7, and the arc horns 31 (31a, 31b), 32 (32a, 32b) are paired up and down. And provided at two places on one side (for example, the upper side) and the other side (for example, the lower side) of the insulator series 7, respectively. Further, the wire support portion 4 is provided on one side of the lever series 7, and the connection support means 6 is provided on the other side of the lever series 7.

  The apparatus main body 5 connects the insulator 2 at one end of the insulator series 7, one of the arc horns 31 and 32 (for example, the upper arc horns 31a and 32a) paired up and down, and the connection support means 6. A connecting tool (hereinafter referred to as “first connecting tool”) 11 is provided. The apparatus body 5 includes the insulator 2 at the other end of the insulator series 7, the other pair of upper and lower arc horns 31 and 32 (for example, the lower arc horns 31b and 32b), and the wire support portion 4. A connecting tool (hereinafter referred to as “second connecting tool”) 12 to be connected is provided.

  The 1st coupling tool 11 is comprised by the cross-shaped board member, and is provided with two protrusion parts which protrude in an up-down direction. Hereinafter, of these two projecting portions, the projecting portion 13 projecting upward is referred to as an “upper projecting portion”, and the projecting portion 14 projecting downward is referred to as a “lower projecting portion”. "

  Moreover, the 1st connection tool 11 is provided with two protrusion parts which protrude in the left-right direction orthogonal to an up-down direction. Hereinafter, of these two protrusions, the protrusion 15 that protrudes to the right is referred to as a “right protrusion”, and the protrusion 16 that protrudes to the left is referred to as a “left protrusion”. It is called “protrusion”.

  A connection hole (not shown) for connecting the connection support means 6 is formed in the upper projecting portion 13 of the first connector 11 so as to penetrate in the plate thickness direction. A connecting hole (not shown) for connecting the insulator 2 on one end side of the plate is formed so as to penetrate in the thickness direction. Further, the left and right projecting portions 15 and 16 of the first connector 11 are formed with a plurality of through holes 15a..., 16a.

  Similar to the first connector 11, the second connector 12 is also formed of a cross-shaped plate member, and includes upper and lower protrusions 13 and 14 and left and right protrusions 15 and 16. A connection hole (not shown) for connecting the insulator 2 on the other end side of the insulator series 7 is formed in the upper protrusion 13 of the second connector 12, and the wire support 4 is provided in the lower protrusion 14. A connection hole (not shown) for connection is formed. Further, a plurality of through holes 15b,..., 16b... Are formed in the left and right projecting portions 15, 16 of the second connector 12 (see FIG. 3).

  The wire support portion 4 is a clamp capable of gripping a high-voltage wire, for example, and has a connecting portion 21 connected to the second connector 12. The connecting portion 21 is formed with a connecting hole (not shown) for connecting to the lower projecting portion 14 of the second connector 12. The connecting hole of the connecting portion 21 and the connecting hole of the lower projecting portion 14 Are connected to each other by fastening the connecting portion 21 and the lower projecting portion 14 via fastening means such as bolts and nuts.

  The arc horns 31 (31a, 31b), 32 (32a, 32b) include a main arc horn 31 (31a, 31b) for generating a predetermined arc discharge, and an arc generated in the vicinity of the insulator 2 in the main arc horn 31 ( And auxiliary arc horn 32 (32a, 32b) for shifting to 31a, 31b). In the present embodiment, the apparatus main body 5 is provided with two pairs of upper and lower main arc horns 31a, 31b... And one pair of upper and lower auxiliary arc horns 32a and 32b.

  As shown in FIG. 1 and FIG. 2, two main arc horns 31a, 31a on the upper side (grounding side) attached to the first connector 11 among the upper and lower main arc horns 31a, 31b. Each is made of a long bar-shaped body made of metal, and has one end portion provided with connecting portions 33 a and 33 a connected to the first connector 11. A plurality of connection holes 34a, 34a,... For connecting the connection parts 33a, 33a to the first connector 11 are formed in the connection parts 33a, 33a.

  Of the main arc horns 31a, 31b, which are paired up and down, the two main arc horns 31b, 31b on the lower side (line side) attached to the second connector 12 are each made of a metal and have a long rod shape. It is comprised by the body, has the connection parts 33b and 33b connected with the 2nd connection tool 12 in the one end part, and the other end part is bent and it is comprised cyclically | annularly. A plurality of connecting holes 34b, 34b... For connecting these connecting portions 33b, 33b to the second connector 12 are formed in each connecting portion 33b, 33b.

  The auxiliary arc horn 32 includes an upper (ground side) auxiliary arc horn 32a attached to the first connector 11, and two lower (line side) auxiliary arc horns 32b and 32b attached to the second connector 12. The upper and lower pairs.

  The upper auxiliary arc horn 32 a includes a main body 35 configured in an annular shape, and a rod-shaped support 36 that fixes and supports the main body 35 to the first connector 11 of the apparatus main body 5.

  The main body 35 of the auxiliary arc horn 32a is for transferring the arc to the upper main arc horn 31a so that the arc generated near the insulator 2 is appropriately discharged by the main arc horns 31a and 31b. It is.

  The main body portion 35 is provided with two support portions 36 and 36. Each of the support portions 36 and 36 is formed in an elongated shape, and one end portion thereof is fixed to the main body portion 35, and a connection portion 37 connected to the first connection tool 11 is provided at the other end portion.

  The connecting portion 37 has a plate shape, and a plurality of (two in the illustrated example) connecting holes 37 a and 37 a for connecting to the first connector 11 are provided in the middle of the connecting portion 37 in the plate thickness direction. It has been. Each support portion 36 is provided along the radial direction of the annular main body portion 35a in plan view.

  An elastic part 41 is provided in the middle part of the upper auxiliary arc horn 32a to absorb the shock when the apparatus main body 5 swings and receives an impact. Specifically, the elastic part 41 is provided in the middle part of the support part 36. In the present embodiment, a coil spring is employed as the elastic portion 41.

  The upper main arc horns 31a, 31a and the upper auxiliary arc horn 32a are connected to the right protruding portion 15 of the first connector 11 by the connecting portion 33a of one main arc horn 31a and the one connecting portion 37 of the auxiliary arc horn 32a. The connecting hole 34a of the connecting part 33a and the connecting hole 37a of the connecting part 37 are aligned with the through hole 15a of the right protruding part 15, and these are fastened by fastening means such as bolts and nuts. Yes.

  Further, the left projecting portion 16 of the first connector 11 is sandwiched between the connecting portion 33a of the other main arc horn 31a and the other connecting portion 37 of the auxiliary arc horn 32a, and is connected to the connecting hole 34a of the connecting portion 33a. The connecting hole 37a of the portion 37 is aligned with the through hole 16a of the left projecting portion 16, and these are fastened by fastening means such as bolts and nuts, and the main arc horn 31a and the auxiliary arc horn 32a are thus connected to the first connection. It is attached to the tool 11.

  As shown in FIG. 3, of the pair of upper and lower auxiliary arc horns 32 a and 32 b, each of the lower two auxiliary arc horns 32 b and 32 b includes arcuate main body portions 43 and 43 and main body portions 43 and 43. Are supported by the second connector 12 and have support portions 44, 44. The support portions 44, 44 of each auxiliary arc horn 32b, 32b are formed in a rod shape, one end portion of which is fixed to the intermediate portion of the main body portions 43, 43, and the other end portion is connected to the second connector 12 in a plate shape. Connecting portions 45, 45 are provided. A plurality (two in the illustrated example) of connecting holes 45a and 45a for connecting to the second connector 12 are formed in the connecting portions 45 and 45 so as to penetrate in the plate thickness direction.

  The lower main arc horns 31b, 31b and the lower auxiliary arc horns 32b, 32b are connected to the right side of the second connector 12 by the connecting portion 33b of one main arc horn 31b and the connecting portion 45 of one auxiliary arc horn 32b. The projecting portion 15 is sandwiched, the coupling hole 34b of the coupling portion 33b and the coupling hole 45a of the coupling portion 45 are aligned with the through hole 15b of the right projecting portion, and these are fastened by fastening means such as bolts and nuts. Yes.

  Further, the connecting portion 33b of the other main arc horn 31b and the connecting portion 45 of the other auxiliary arc horn 32b sandwich the left protruding portion 16 of the second connector 12, and the connecting portion 34b is connected to the connecting hole 34b. The connecting hole 45a of the portion 45 is made to coincide with the through hole 16b of the left projecting portion 16, and these are fastened by fastening means such as bolts and nuts. Thus, the main arc horn 31b and the auxiliary arc horn 32b are second Attached to the connector 12.

  The lower two auxiliary arc horns 32b and 32b are provided so that the main body portions 43 and 43 sandwich the lower main arc horns 31, and the front end portions of the main body portions 43 and 43 can be attached to the main arc horn 31. It is attached to the second connector 12 in a state as close as possible. Further, the two main arc horns 31b and 31b are substantially circular in a plan view by providing the main body portions 43 and 43 so as to be symmetric with respect to the second connector 12.

  The upper main arc horns 31a and 31b having the above-described configuration are fixed to the end of the upper main arc horn 31a fixed to the first connector 11 and the second connector 12 when, for example, lightning strikes. A predetermined arc discharge is performed between the lower end of the main arc horn 31b and the annular end. The auxiliary arc horns 32a and 32b can transfer the arc generated in the vicinity of the insulator to the nearest main arc horns 31a and 31b.

  The connection support means 6 includes a first connection member (for example, clevis) 51 attached to the first connection tool 11 and a second connection member 52 connected to a support arm provided on the steel tower. The first connecting member 51 is connected to the upper projecting portion 13 of the first connecting member 11 via a connecting shaft (hereinafter referred to as “first connecting shaft”) 53, and the connecting shaft is connected to the first connecting member 11. It is connected to the surroundings so as to be relatively rotatable.

  The first connecting member 51 and the second connecting member 52 are connected via a connecting shaft (hereinafter referred to as “second connecting shaft”) 54, and the first connecting member 51 and the second connecting member 52 are The second connecting shaft 54 is connected to be relatively rotatable.

  The first connecting shaft 53 is provided so as to be substantially orthogonal to the second connecting shaft 54. The upper main arc horns 31 a and 31 a are provided so as to protrude in a direction along the axial direction of the second connecting shaft 54.

  The suspension insulator apparatus 1 is configured such that the apparatus main body 5 can swing around the first connection shaft 53 and the second connection shaft 54 by fixing the second connection member 52 to the support arm of the steel tower by a fixing means such as a bolt. It has become.

  More specifically, when the suspended insulator apparatus 1 according to the present embodiment is attached to a support arm of a steel tower, the first connection shaft 53 is provided along the protruding direction of the support arm, and the second connection shaft 54 is provided so as to be orthogonal to the protruding direction of the support arm.

  Therefore, even when the apparatus main body 5 swings around the second connecting shaft 54, the main arc horns 31a and 31a do not come into contact with the support arm. On the other hand, the main body portion of the upper auxiliary arc horn 32 a may come into contact with the support arm when the apparatus main body 5 is largely swung around the second connecting shaft 54.

  According to the suspended lever apparatus 1 having the above-described configuration, for example, even when the apparatus main body 5 is largely swung around the second connecting shaft 54 and the main body portion 35 of the auxiliary arc horn 32a contacts the support arm, the auxiliary arc The elastic portion 41 provided on the support portions 36, 36 of the horn 32a is elastically deformed, so that the impact when the auxiliary arc horn 32 comes into contact with the support arm can be absorbed (relaxed). It becomes possible to prevent the horn 32 from being deformed.

  Further, by providing the elastic portions 41, 41 in the middle of the support portions 36, 36 of the auxiliary arc horn 32a, the impact applied to the auxiliary arc horn 32a can be absorbed without impairing the main function of the main body portion 35. Can do.

  Moreover, even if an impact is applied to the auxiliary arc horn 32 from any direction by configuring the elastic portion 41 with a coil spring, this can be absorbed, and the suspended lever device 1 is capable of deforming the auxiliary arc horn 32. Can be surely prevented.

  4 and 5 show a second embodiment of the hanging lever device 1. As shown in FIG. 4, the hanging insulator apparatus 1 according to this embodiment is provided with four main arc horns 31 a, 31 b. Moreover, in this embodiment, the auxiliary | assistant arc horns 32a and 32b, the 1st connection tool 11, and the 2nd connection tool 12 are not provided in the apparatus main body 5. FIG. The apparatus main body 5 is configured by directly connecting the insulator series 7, the electric wire support 4, and the main arc horns 31a, 31b. In addition, the electric wire support part 4 employs a clamp with a counterweight.

  In the present embodiment, the connection support means 6 is connected to the insulator 2 on one end side of the elongated insulator 7 configured in a long shape, and the wire support portion 4 is provided on the insulator 2 on the other end of the insulator train 7. ing. Moreover, the suspended lever apparatus 1 according to the present embodiment can directly attach the main arc horns 31 a and 31 b to the lever series 7.

  That is, the four main arc horns 31a, 31a... Attached to one end portion (upper end portion) of the insulator series 7 are divided into two portions and are fixed to one support portion 61, respectively. The support portions 61, 61 provided with the two main arc horns 31 a, 31 a are connected to each other so as to be attached to the insulator series 7 of the apparatus body 5.

  Specifically, each of the support portions 61 and 61 has a plate shape having a circular arc shape in plan view, and the two support portions 61 and 61 are connected to each other at both ends of the support portions 61 and 61. Connecting portions 62, 62 are formed.

  Each connecting portion 62, 62 is formed with a through hole 64, 64 penetrating in the plate thickness direction. The through-hole 64 formed in the connecting portion 62 of the one support portion 61 and the through-hole 64 formed in the connecting portion 62 of the other support portion 61 are aligned and fastened by a fastening means such as a bolt / nut. Thus, the two support portions 61 and 61 are connected. At this time, the main arc horns 31, 31... Are directly attached to the apparatus body 5 by sandwiching the body of the insulator 2 located at one end of the insulator series 7 between the two support portions 61, 61. It is supposed to be.

  Further, the four main arc horns 31b, 31b... Provided at the other end (lower end) of the insulator series 7 are also used in the same configuration as the above four main arc horns 31, and the two support portions 61, The body 61 of the insulator 2 located at the other end of the insulator series 7 is sandwiched by 61 so as to be attached to the apparatus main body 5.

  The other points of this embodiment are the same as those of the first embodiment, and portions common to those of the first embodiment are denoted by common reference numerals and description thereof is omitted. Also in this embodiment, there exists an effect similar to 1st Embodiment.

  FIG. 6 shows a modification of the arc horns 31 and 32. In the present embodiment, the shape of the auxiliary arc horn 32a provided on the upper side of the apparatus body 5 is different from that of the first embodiment. In the first embodiment, the auxiliary arc horn 32a on the upper side of the apparatus main body 5 is provided with the annular main body 35. However, in this modification, the auxiliary arc horn 32a provided on the upper side of the apparatus main body 5 is used. Is constituted by two auxiliary arc horns 32a, 32a each having an arcuate main body 71.

  Support portions 72 and 72 are provided in the main body portions 71 and 71 of the auxiliary arc horns 32a and 32a, but the support portions 36 and 36 shown in the first embodiment are the radii of the annular main body portion 35. In contrast to being provided along the direction, in this modification, the support portions 72 and 72 are provided so as to be offset from the radial direction of the arcuate body portions 71 and 71 by bending the midway portions thereof. . In the middle part of the support parts 72, 72, an elastic part 41 is provided similarly to the auxiliary arc horn 32a shown in the first embodiment.

  In this modification, the main arc horn 31a provided on the upper side of the apparatus main body 5 is the same as that shown in the first embodiment. Moreover, the main arc horn 31a and the auxiliary arc horn 32b shown in FIG. 6 can be used for the main arc horn 31b and the auxiliary arc horn 32b provided on the lower side of the apparatus main body 5.

  For example, when the auxiliary arc horns 32a and 32a according to the present modification are used in the suspended insulator device 1 according to the first embodiment, and the suspended insulator device 1 is provided at the protruding end of the support arm of the steel tower, the device One of the two auxiliary arc horns 32a, 32a provided on the upper side (grounding side) of the main body 5 is provided at a position near the steel tower, and the other is provided near the protruding end of the support arm away from the steel tower. become.

  In such a case, even if the apparatus main body 5 is largely swung, the other auxiliary arc horn 32 is not in contact with the support arm and is elastic only to the auxiliary arc horn 32a provided near the steel tower. The part 41 may be provided.

  The present invention is not limited to the above embodiment, and various modifications and changes can be made.

  For example, in the above-described embodiment, the suspension insulator apparatus 1 in which the apparatus main body 5 is provided with the upper and lower two pairs of main arc horns 31a, 31b... Is not limited thereto, but the main arc horns 31a and 31b are moved up and down. It is good also as a pair or two or more pairs above and below three pairs. Similarly, the auxiliary arc horns 32a and 32b may be a plurality of pairs of three or more pairs.

  In the above embodiment, an example in which the elastic portion 41 is provided in the middle portion of the upper auxiliary arc horn 32a among the upper and lower pairs of auxiliary arc horns 32a and 32b (first embodiment), and the upper and lower pairs of main arc horns 31a. , 31b, etc., an example (second embodiment) in which the elastic portion 41 is provided on the upper main arc horn 31a is shown, but not limited thereto, the lower auxiliary arc horn 32b, the lower main arc You may make it provide the elastic part 41 in the horn 31b.

  In the said embodiment, although the coil spring was used as the elastic part 41 provided in the main arc horn 31a and the auxiliary | assistant arc horn 32a, it was not restricted to this, As the elastic part 41, a plate spring and other various elasticity are shown. A deformable element can be used. Moreover, you may make it comprise a part or all of each arc horn with the metal material which is easy to elastically deform.

  In the above embodiment, an example in which the elastic part 41 is provided in the middle part of the support parts 36 and 36 of the auxiliary arc horn 32a is shown, but not limited thereto, the elastic part 41 is provided in the middle part of the main body part 35. May be. Further, the elastic part 41 may be provided on both the main body part 35 and the support part 36.

  In the above-described embodiment, the suspension lever device including the arc horns 31 and 32 that protect the single lever string 7 configured by connecting the plurality of levers 2 is illustrated. The present invention can also be applied to those provided with arc horns 31, 32 for protecting 7, 7,.

  In said embodiment, although the steel tower was demonstrated to the example as an attachment target object of the suspension insulator apparatus 1, this invention is applicable not only to this but various structures provided with a high voltage electric wire, for example.

  In said embodiment, although the example which applied this invention to the suspension lever apparatus 1 provided with the main arc horns 31a and 31b and auxiliary | assistant arc horns 32a and 32b used as the upper and lower pairs was shown, it does not restrict to this but upper and lower pairs. When a further auxiliary arc horn is used in the middle of the arc horn, the present invention can be applied to this auxiliary arc horn. That is, the present invention is not limited to the case where the arc horns are vertically paired.

  In the above embodiment, the suspension lever device 1 is illustrated in which the elastic portion 41 is provided in the middle portion of the auxiliary arc horns 32a and 32b (for example, the middle portion of the support portion 36). May be provided at a position near the base end of the auxiliary arc horn, that is, the connecting portion 37 of the support portion 36 (or the connecting portion 45 of the support portion 44). Similarly, the elastic part 41 may be provided in the base end part (position near the connection parts 33a and 33b) of the main arc horns 31a and 31b.

It is a side view of the suspension lever apparatus which shows 1st Embodiment of this invention. It is a top view of the arc horn similarly provided in the upper side of an apparatus main body. It is a bottom view of the arc horn similarly provided in the lower side of an apparatus main body. It is a side view of the suspension lever apparatus which shows 2nd Embodiment of this invention. It is a top view of the arc horn similarly provided in the upper side of an apparatus main body. It is a top view which shows the modification of an arc horn.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Suspension lever apparatus, 2 ... Insulator, 4 ... Electric wire support part, 5 ... Apparatus main body, 6 ... Connection support means, 7 ... Insulator chain, 11 ... 1st connection tool, 12 ... 2nd connection tool, 13 ... Upper protrusion , 14 ... lower projecting part, 15 ... right projecting part, 15a ... through hole, 16 ... left projecting part, 16a ... through hole, 21 ... connecting part, 31 (31a, 31b) ... main arc horn, 32 (32a, 32b) ... Auxiliary arc horn, 33 (33a, 33b) ... connecting portion, 34a ... connecting hole, 34b ... connecting hole, 35 ... main body portion, 36 ... support portion, 37 ... connecting portion, 37a ... connecting hole, 41 ... elasticity , 43 ... body part, 44 ... support part, 45 ... connection part, 45a ... connection hole, 51 ... first connection member, 52 ... second connection member, 53 ... first connection shaft, 54 ... second connection shaft, 61 ... support part, 62 ... coupling part, 64 ... through hole, 71 ... main body part, 72 ... support part

Claims (3)

Insulator and the arcing horn for generating a predetermined arc discharge in order to prevent breakage of the insulator during lightning, provided with a device body having a wire supporting portion for supporting the wire, apparatus at a predetermined connecting position with the object preparative In a suspension lever device comprising a connection support means for connecting the main body and supporting the apparatus main body so as to be swingable,
The arc horn includes a main arc horn for generating a predetermined arc discharge, and an auxiliary arc horn for transferring an arc generated in the vicinity of the insulator to the main arc horn,
A suspension insulator characterized in that an elastic part that is elastically deformable is provided in the middle part or the base end part of the auxiliary arc horn in order to absorb the shock when the apparatus main body swings and the shock is applied to the arc horn. apparatus. The auxiliary arc horn includes a main body part for picking up an arc generated in the vicinity of the insulator, and a support part that is attached to the apparatus main body and supports the main body part, and the elastic part is a middle part or a base end of the support part The suspended lever apparatus according to claim 1 , which is provided in the section . The suspension lever device according to claim 1 , wherein the elastic portion is a coil spring.

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