JP2007287785A - Device for hanging transformer, and method for installing transformer by hanging - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a device for hanging a transformer in which a hanging belt is prevented easily and surely from slipping out of the transformer, and to provide a method for installing a transformer equipped with the device for hanging a transformer by using a hanging belt. <P>SOLUTION: The device for hanging a transformer comprises a plurality of receiving members 12 provided on the outer circumference at the upper portion of a transformer body 2 oppositely to the radial direction, a plurality of retaining members 14 located at the outer circumferential positions on the upper surface of a lid member 4 corresponding to the receiving members 12, and a clip member 17 engaging with the receiving member 12. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a device for suspending a transformer and a method for suspending and installing a transformer.

  Conventionally, when installing electric devices such as transformers and switches (hereinafter referred to as “transformers”), one or two hanging belts are hung on the transformer, The transformer is suspended by moving the hook on the suspension belt and installed at a predetermined position.

  For example, when installing a transformer on a pillar, use a suspension belt with both ends formed in a ring shape, hang the ring portion of the suspension belt on the receiving portion of the transformer, and then the suspension belt In order to prevent the belt from coming off from the receiving portion, the ring portion of the hanging belt and the receiving portion are fixed with a bind line, a squeezing tool or the like. Incidentally, the transformer of 5 kVA type is about 60 kg, and that of 50 kVA type is about 260 kg, which is considerably heavy.

  However, when the transformer is suspended using the suspension belt as described above and installed on the upper part of the utility pole, it takes time and effort to fix the suspension belt using a binding wire or a drawing tool. It takes. Also, if the transformer is hung only by the hanging belt without using a binding wire or a drawing tool, the hanging belt will come off from the receiving part of the transformer, and a considerably heavy transformer will fall as described above. It is dangerous to do.

  The present invention has been made in view of the above situation, and when suspending an electrical device such as a transformer, the transformer suspension for easily and reliably preventing the suspension belt from coming off from the transformer. It is an object of the present invention to provide a transformer hanging installation method in which a lowering device and a transformer including the transformer hanging device are installed using a belt for hanging.

  A transformer suspension device according to the present invention is a transformer suspension device that suspends a transformer having a transformer body and a lid member provided on the upper portion of the transformer body. A plurality of receiving members provided facing each other, a plurality of holding members which are placed at positions corresponding to the receiving members on the outer periphery of the upper surface of the lid member and can be joined to the receiving members, and a clip member which engages with the receiving members It is characterized by having.

  The clip member has a protruding portion that is formed by bending an elongated metal plate into a substantially U shape, bending the inside of both sides sandwiching the center portion of the U shape inward, and a magnet member inside the center portion. Further, it is characterized by further comprising a fall prevention string.

  The transformer suspended installation method of the present invention is a transformer suspended installation method in which a transformer having a transformer body and a lid member provided on the upper portion of the transformer body is suspended and installed using a suspension belt. A plurality of holding members provided at positions corresponding to the receiving members on the outer periphery of the upper surface of the lid member are joined to a plurality of receiving members provided radially opposite to the upper outer periphery of the transformer body. The ring portions provided at both ends of the lowering belt are hooked on receiving members, the clip members are engaged with the receiving members, and the transformer is hung by the hanging belt and installed at a predetermined position.

  The clip member is formed by bending a long and thin metal plate into a substantially U shape, having a protruding portion bent inward at substantially the middle of both sides sandwiching the center portion of the U shape, and having a magnet member inside the center portion. It is equipped with a string for prevention.

  According to the transformer hanging device of the present invention, the clip member engages with the receiving member and restricts the movable range of the hanging belt hung on the receiving member, so that the hanging belt is detached from the receiving member. This can be easily and reliably prevented.

  The clip member is substantially U-shaped, has a projecting portion and a magnet member, and further includes a drop-preventing string, so that the clip member is prevented from falling off the receiving member, and the hanging belt is detached from the receiving member. This can be prevented more reliably.

  According to the method of the present invention, by engaging the clip member with the receiving member in a state where the ring portion of the hanging belt is hooked on the receiving member, the moving of the hanging belt with the clip member hooked on the receiving member is possible. Since the range is limited, it is possible to easily and reliably prevent the suspension belt from being detached from the receiving member when the transformer is suspended.

  As shown in FIG. 1, a transformer suspension device 1 includes a transformer 4 having a transformer main body 2 and a lid member 3 provided on the upper part of the transformer main body 2, and a radial direction on an upper outer periphery of the transformer main body 2. Are provided with a plurality of receiving members 12, a holding member 14 placed at a position corresponding to the receiving member on the outer periphery of the lid member 4, and a hanging belt 6.

  The receiving member 12 and the holding member 14 are joined by a fixing bolt 15 and a fixing pin 18, whereby the lid member 4 is fixed to the transformer body 2. Generally, the receiving member 12 and the holding member 14 are provided in three sets for a transformer of 10 kVA or less and four sets for a transformer of 10 kVA or more.

  As shown in FIG. 2, the receiving member 12 is integrally cast with the transformer body 2 so as to protrude outward on the outer peripheral surface of the transformer body 2, or is attached by welding. The steel plate is bent in a substantially U shape, and is composed of two side surface portions 21a and 21b and a connecting portion 22 that connects these side surface portions 21a and 21b at the lower portion. The side portions 21a and 21b have a notch 23 at a position where the upper edge portion of the connecting portion 22 is located, a through hole 24 through which the fixing pin 18 is passed substantially at the center, and a hanging belt at the lower portion. 6 is provided with an arcuate recess 25 for multiplying 6.

  As shown in FIGS. 2 and 3, the holding member 14 has a substantially L-shaped side surface, and includes a horizontal portion 31 extending in the horizontal direction and a vertical portion 32 extending in the vertical direction. A through hole 36 for passing the fixing bolt 15 is provided on the upper surface of the horizontal portion 31.

  As shown in FIG. 4, the clip member 17 is formed by bending an elongated metal plate into a substantially U shape, and includes a center portion 52 and a pair of side portions 51 a and 51 b. Protruding portions 53a and 53b that are bent in a mountain shape or an arc shape are provided on the inner side of each side portion 51a and 51b. Further, a magnet member 57 is attached to the inside of the central portion 52, and a through hole 58 for connecting the fall prevention string 59 is provided in one of the side portions 51a and 51b.

  As shown in FIG. 5, the fixing pin 18 includes a shaft portion 18 b and a stop ring 20. The shaft portion 18b has a head portion 18a at one end and a screw hole 19 for screwing the fixing bolt 15 at the substantially center, and a stop ring 20 is screwed to the other end. The fixing bolt 15 has a threaded portion 16 that is threaded at the bottom.

  A method for joining the lid member 4 to the transformer body 2 will be described.

  First, the fixing pin 18 is attached to the receiving member 12. As shown in FIG. 2, the shaft 18 b of the fixing pin 18 is passed through the through hole 24 of the receiving member 12, and the retaining ring 20 is screwed to the tip of the shaft 18 b, whereby the fixing pin 18 is received by the receiving member 12. Mounted on.

  Next, the lid member 4 is placed on the transformer body 2, the restraining member 14 is placed at a position corresponding to the receiving member 12 on the upper surface of the lid member 4, and the back surface of the flat portion 35 of the horizontal portion 31 of the restraining member 14 is placed. By holding the lid member 4 in contact with the upper surface of the lid member 4 and passing the fixing bolt 15 through the through hole 36 of the holding member 14 in this state and screwing the screw portion 16 into the screw hole 19 of the fixing pin 18. The holding member 14 is attached to the receiving member 12. Similarly, the lid member 4 is fixed to the transformer body 2 by attaching the restraining members 14 to all the receiving members 12 attached to the transformer body 2.

  Next, the suspension belt 6 used to suspend the transformer will be described with reference to FIG.

  The hanging belt 6 is knitted into a string shape or a belt shape with a flat cross section by a strong fiber material. Ring portions 6a and 6b having an annular shape are provided at both ends, and are reinforced by reinforcing members 7, respectively. Moreover, although not shown in figure, it may be divided into three forks from the center part and a ring part may be provided at each end. When the suspension belt 6 suspends the transformer 1, the ring portions 6 a and 6 b are hooked on the recess portion 25 of the member 12.

  Finally, a method for suspending the transformer with the suspension belt will be described.

  First, as shown in FIG. 1, the ring portions 6 a and 6 b at both ends of the hanging belt 6 are respectively hung on the recessed portions 25 of the receiving members 12 on both sides. In this case, the ring portions 6 a and 6 b of the hanging belt 6 need to be securely hooked on the recess portion 25 of the receiving member 12.

  Next, the clip member 17 is inserted from the lateral direction, and the connecting portion 22 of the receiving member 12 is inserted to the back so that both side portions 51a and 51b of the clip member 17 are sandwiched. At this time, the clip member 17 is attached to a position where the side portion 51a sandwiches the connecting portion 22 of the receiving member 12 from above and the side portion 51b sandwiches from below, and the side portion 51b closes the recessed portion 25 of the receiving member 12. In addition, the magnet member 57 provided on the inner side of the center portion 52 is pushed into the back to the position where it is magnetically attached to the connecting portion 22. Thereby, the clip member 17 has its side portion 51a pressed downward on the upper edge portion of the connecting portion 22 of the receiving member 12 by its elastic force, and the side portion 51b has the lower edge portion of the connecting portion 22 of the receiving member 12 and Since the lower surface of the receiving member 12 is pressed upward, the clip member 17 is prevented from being detached from the attachment position. Further, since the magnet member 57 provided inside the center portion 52 of the clip member 17 is magnetically attached to the recess 25 of the receiving member 12, the clip member 17 is connected to the connecting portion 22 of the receiving member 12. The clip member 17 is further restrained from being detached from its attachment position. Then, by attaching the clip member 18 to the receiving member 12 in this way, the recessed portion 25 of the receiving member 12 is closed by the side portion 51b of the clip member 17, so that the ring portions 6a and 6b of the hanging belt 6 are The movable range is limited to the recessed portion 25 and cannot be removed. Furthermore, since the fall prevention string 59 is attached, there is no fear of dropping and losing.

  Finally, a substantially intermediate portion of the suspension belt 6 is suspended by a crane hook 8, and the transformer 1 is installed at a predetermined location.

  With the above operation, it is possible to easily and reliably prevent the suspension belt 6 hung on the receiving member 12 of the transformer 1 from coming off. In addition, the clip member 17 is simply inserted into and attached to the ring portions 6a and 6b of the hanging belt 6 hung on the receiving member 12 of the transformer 1, and does not require the operator's skill.

  When the transformer body 2 has four receiving members 12, the holding members 14 are similarly attached to the remaining two receiving members 12, and the second suspension belt is attached to the receiving member 12 as the preceding belt. It is possible to attach the crossing portions of these two suspension belts 6 on the hooks 8 of the crane and suspend the transformer 1 by the crane and install the transformer 1 in a predetermined position above the utility pole. it can.

  Although one embodiment has been described above, the present invention is not limited to this, and various modifications and changes can be made.

It is a front view which shows the state which hung the belt for suspension on the transformer. FIG. 2 is an exploded view showing a receiving member and a holding member of the transformer of FIG. 1. It is a side view which shows the receiving member and holding member of FIG. It is a perspective view which shows the clip member of an Example. It is a perspective view which shows the fixing bolt and fixing pin of an Example. It is a front view which shows the hanging belt of an Example.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Transformer, 2 ... Transformer main body, 4 ... Cover member, 6 ... Hanging belt, 6a, 6b ... Ring part, 8 ... Hook, 12 ... Receiving member, 14 ... Holding member, 15 ... Fixing bolt, 16 DESCRIPTION OF SYMBOLS ... Screw part, 17 ... Clip member, 18 ... Fixing pin, 19 ... Screw hole, 20 ... Stop ring, 21a, 21b ... Side part, 22 ... Connection part, 23 ... Notch, 24 ... Through-hole, 25 ... Indentation Part, 31 ... flat part, 32 ... vertical part, 33a, 33b ... side part, 34 ... front part, 35 ... plane part, 36 ... through hole, 51a, 51b ... side part, 52 ... center part, 53a, 53b ... Projection, 58... Through hole, 57... Magnet member, 59.

Claims (8)

A transformer hanging device for hanging a transformer having a transformer body and a lid member provided on the upper portion of the transformer body,
A plurality of receiving members provided radially opposite to the upper outer periphery of the transformer body;
A plurality of holding members that are placed at positions corresponding to the receiving members on the outer periphery of the upper surface of the lid member and can be joined to the receiving members, respectively;
A transformer suspension device comprising a clip member engaged with the receiving member. In the transformer suspension device according to claim 1,
The said clip member has a protrusion part which bent the elongate metal plate to the substantially U shape, and bent the inner part of the both sides which pinch | interpose the center part of this U shape inside. The transformer hanging device according to claim 2,
The transformer suspension device, wherein the clip member has a magnet member inside the center portion. In the transformer suspension device according to any one of claims 1 to 3,
The clip suspending device according to claim 1, wherein the clip member is provided with a fall prevention string. A transformer hanging installation method for hanging and installing a transformer having a transformer body and a lid member provided on the upper portion of the transformer body using a belt for suspension,
To the plurality of receiving members provided in a radial direction on the upper outer periphery of the transformer body, a plurality of holding members placed at positions corresponding to the receiving members on the upper surface outer periphery of the lid member, respectively,
Hang ring portions provided at both ends of the hanging belt on the receiving member,
Engaging a clip member with the receiving member;
A transformer hanging installation method, wherein the transformer is suspended by the suspension belt and installed at a predetermined position. In the transformer hanging installation method according to claim 5,
The said clip member is a transformer hanging installation method characterized by bending the elongate metal plate into a substantially U shape, and having the protrusion part which bent the inner part of the both sides which pinch | interpose the center part of this U shape inside. In the transformer hanging installation method according to claim 5 or 6,
The said clip member has a magnet member inside the said center part, The transformer hanging installation method characterized by the above-mentioned. In the transformer hanging installation method according to any one of claims 5 to 7,
The transformer hanging installation method, wherein the clip member is provided with a fall prevention string.

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