JP6561740B2 - Uninterruptible instrument replacement device - Google Patents

Description

  The present invention relates to an uninterruptible meter replacement device for replacing an watt-hour meter without uninterruptible power.

  Conventionally, when replacing a watt-hour meter for replacement, repair, inspection, etc., if the electric wire is removed from the watt-hour meter, power is not supplied to the customer's house, and a power failure has been forced to replace the watt-hour meter. In order to solve such an inconvenience, an uninterruptible tool that makes it possible to replace a watt hour meter without an uninterruptible power is known (for example, refer to Patent Document 1).

  This uninterruptible tool is provided with a plurality of electric wire insertion portions into which the electric wires can be inserted into the tool body, and is provided with a rod-shaped receiving member that closes the opening of the electric wire insertion portion, and each electric wire inserted into each electric wire insertion portion is It fixes by pinching | pinching between the front-end | tip of each holding member for electric wires, and a receiving member. In this state, the insulation of each electric wire is broken with a push-off electrode and electrically connected. Here, an insertion hole is formed in the tool body so as to penetrate each electric wire insertion portion along the side edge from one side surface to the other side surface at the distal end portion of the pressing member insertion portion for inserting the electric wire pressing member. The two receiving members are respectively inserted into the insertion holes from the left and right to close the openings of all the wire insertion portions.

JP 2014-098562 A

  By the way, because the distance and space from the side of the tool body to the side wall of the meter box of the watt hour meter is narrow, when inserting the receiving member into the insertion hole, it is difficult to insert the receiving member due to the side wall of the instrument box interfering There is. In particular, since the one and right receiving members are long, it is difficult to insert them into the insertion holes. For this reason, it is necessary to pull up the charged watt-hour meter or electric wire when inserting it, which may cause the electric wire to loosen and come off the watt-hour meter, or the watt-hour meter may fall off and be damaged. was there.

  On the other hand, even when the watt-hour meter is not stored in the meter box (for example, a totalizer), the distance / space between the watt-hour meter and its surroundings may be narrow. In such a case, peripheral objects may interfere with each other and it may be difficult to insert the receiving member into the insertion hole, or even an uninterruptible tool may not be used.

  Therefore, an object of the present invention is to provide an uninterruptible instrument replacement device in which a receiving member can be easily and surely inserted.

  In order to solve the above-mentioned problems, the invention of claim 1 is characterized in that each of the partition walls partitioning each of the wire insertion portions is provided with a plurality of wire insertion portions into which a plurality of wires connected to the watt hour meter can be inserted in a comb shape. An insertion hole is formed through the portion, a rod-shaped receiving member is inserted into the insertion hole, and the electric wire is positioned between the receiving member and the electric wire insertion portion. An uninterruptible instrument replacement device that breaks the coating and is electrically connected, wherein the insertion hole of the partition wall portion located at least on the side end has an introduction portion opened from a side edge of the partition wall portion, The receiving member can be inserted from the introduction portion.

  According to a second aspect of the present invention, in the uninterruptible instrument replacement device according to the first aspect, the receiving member is provided with a first engaging portion, and the partition portion located at the side end has a second engaging portion. And the first engaging portion and the second engaging portion can be engaged with each other in a state where the receiving member is inserted into the insertion hole.

  According to the first aspect of the present invention, the receiving member is inserted into the insertion hole of the partition wall portion located at the side end from the introduction portion at the side edge of the partition wall portion. That is, the rod-shaped receiving member can be inserted into the insertion hole from the side, and there is no need to insert the receiving member into the insertion hole from the tip. For this reason, even when the side wall of the instrument box is close and the working space is narrow, the instrument box does not get in the way, and the receiving member can be easily and quickly inserted into the insertion hole.

  As a result, there is no need to pull up the electric wire, etc., and it is possible to reduce the electric shock when the electric wire is disconnected and the watt-hour meter is dropped and damaged, thereby improving safety. In addition, since the receiving member can be reliably inserted regardless of the work environment, the watt-hour meter replacement work by the uninterruptible meter replacement device can be more reliably performed.

  According to the invention of claim 2, since the first engaging portion of the receiving member and the second engaging portion of the partition wall can be engaged with the receiving member inserted into the insertion hole, the receiving member is It is possible to prevent the insertion member from being inserted or removed from the introduction portion of the insertion hole, and to properly maintain the insertion state of the receiving member.

It is a perspective view which shows the state which has arrange | positioned the uninterruptible meter replacement apparatus which concerns on embodiment of this invention in the watt-hour meter. It is the figure which looked at the state before attaching the receiving member of the uninterruptible instrument replacement apparatus of FIG. 1 from the lower side. It is the figure which looked at the state after attaching the receiving member of the uninterruptible instrument replacement apparatus of FIG. 1 from the lower side. It is the figure which looked at the state before attaching the receiving member of the uninterruptible instrument replacement apparatus of FIG. 1 from the right side. It is the figure which looked at the state after attaching the receiving member of the uninterruptible instrument replacement | exchange apparatus of FIG. 1 from the right side.

  The present invention will be described below based on the illustrated embodiments.

  1 to 5 show an embodiment of the present invention, and FIG. 1 is a perspective view showing a state in which an uninterruptible instrument replacement device 1 according to this embodiment is arranged in a watt-hour meter 101. The uninterruptible meter replacement device 1 is a device for replacing the watt-hour meter 101 without an uninterruptible power supply, and has the same configuration as a known uninterruptible tool except for the insertion hole 23 and the engaging portions 41 and 42. First, the outline will be described.

  A plurality of electric wire insertion portions 21 into which a plurality of electric wires 102 connected to the watt hour meter 101 can be inserted are provided in a tip shape of the apparatus main body 2 in a comb shape. That is, as shown in FIG. 2, a wire insertion portion 21 opened in a U-shape from the front end edge of the apparatus main body 2 is continuously formed side by side, and adjacent wire insertion portions 21 are partitioned by a partition wall portion 22. Yes.

  An insertion hole 23 is formed through each partition wall 22, and rod-shaped receiving members 31 and 32 can be inserted into the insertion hole 23. The receiving members 31 and 32 are made of electrical insulation, and are connected to the apparatus main body 2 via a connecting string 33. In this embodiment, one (right side in the figure) of the first receiving member 31 is the other (in the figure). It is longer than the second receiving member 32 on the left side).

  On the other hand, in the apparatus main body 2, electric wire pressing members (not shown) are arranged so as to be able to press the electric wires 102 so as to face the electric wire insertion portions 21. Then, as shown in FIG. 3, the receiving members 31, 32 are inserted into the insertion holes 23 and the electric wires 102 are positioned between the receiving members 31, 32 and the electric wire insertion portion 21. The uninterruptible meter replacement device 1 is attached to the watt hour meter 101 by sandwiching the electric wire 102 between the electric wire holding member and the electric wire holding member. At this time, the front end portion of the apparatus main body 2 is in contact with the back plate 103 a of the meter box 103 of the watt-hour meter 101.

  Further, in the apparatus main body 2, a push-off electrode (not shown) is disposed so as to be movable forward and backward with respect to the electric wire 102 so as to face each electric wire insertion portion 21. Then, the electric wire 102 is positioned between the receiving members 31 and 32 and the electric wire insertion portion 21, and each push-off electrode is connected to the electric wire 102 side with the electric wires 102 sandwiched between the receiving members 31 and 32 and the electric wire holding member. Advance to. Thereby, each push-off electrode breaks the coating of each electric wire 102, and the uninterruptible instrument replacement device 1 and each electric wire 102 are electrically connected.

  In such a configuration, the insertion hole 23 of the partition wall portion 22 located at least at the side end has an introduction portion 231 opened from the side edge of the partition wall portion 22, and the receiving members 31 and 32 are inserted from the introduction portion 231. It can be inserted. That is, in this embodiment, the short second receiving member 32 can be inserted into the insertion hole 23 from the distal end of the second receiving member 32 without being obstructed by the side wall 103b of the instrument box 103, but is long. The first receiving member 31 is obstructed by the side wall 103 b of the instrument box 103, and it is difficult to insert the first receiving member 31 into the insertion hole 23 from the tip of the first receiving member 31. Therefore, the insertion hole 23 of the partition wall portion 22 located at the right end of the apparatus main body 2 and the insertion hole 23 of the partition wall portion 22 adjacent to the partition wall portion 22 (second from the right) are as shown in FIG. In addition, it has a key shape (inverted L shape).

  Specifically, in a state where the watt-hour meter 101 is arranged vertically, an introduction portion 231 that opens from the lower end edge (side edge) 22a of the partition wall portion 22 and extends vertically upward, and communicates with the introduction portion 231 to the back side. A mounting portion 232 extending horizontally is provided on the front end side of the apparatus main body 2. Then, the first receiving member 31 can be inserted from the introduction portion 231 so that the first receiving member 31 can be accommodated in the mounting portion 232. The insertion hole 23 of the other partition wall 22 is a closed hole (round hole) having no opening, and the insertion hole 23 and the mounting portion 232 are formed at the same position (coaxial).

  Accordingly, when the first receiving member 31 is inserted into each insertion hole 23, first, as shown in FIG. 2, the first receiving member 31 is inserted into the right end and the insertion hole 23 of the partition wall 22 adjacent thereto. The member 31 is inserted into the introduction portion 231 from the side (side surface on the distal end side). Next, the distal end side of the first receiving member 31 is accommodated in the mounting portion 232, and the first receiving member 31 is moved to the left side as shown in FIG. 22 is inserted into the insertion hole 23.

  Here, the right end and the insertion hole 23 of the partition wall 22 adjacent thereto are key-shaped because the length of the first receiving member 31 and the work space (from the side surface of the apparatus body 2 to the side wall 103b of the instrument box 103). This is because the first receiving member 31 can be inserted into the introducing portion 231 without the side wall 103b being obstructed if only the two insertion holes 23 are made into a key shape in consideration of distance and space.

  On the other hand, when the second receiving member 32 is inserted into each insertion hole 23, the tip of the second receiving member 32 is opposed to the insertion hole 23 of the partition wall portion 22 on the left end, and the second receiving member 32 is It is moved to the right side and sequentially inserted into the insertion hole 23.

  The first receiving member 31 is provided with a first engaging portion 41, the partition wall portion 22 located on the right end is provided with a second engaging portion 42, and the first receiving member is inserted into each insertion hole 23. In a state where 31 is inserted, the first engaging portion 41 and the second engaging portion 42 can be engaged.

  That is, as shown in FIGS. 2 and 5, the terminal 4 attached to one end of the connecting string 33 is screwed to the base end surface (end surface on the opposite end side) of the first receiving member 31. The terminal 4 is configured by an annular crimp terminal at the tip end to be screwed, and a cylindrical crimp portion to which the connecting string 33 is crimped and connected is a first engaging portion 41. On the other hand, as shown in FIGS. 4 and 5, the second engagement portion 42 is a square block-shaped piece, which is the back side of the introduction portion 231 of the partition wall portion 22 located at the right end (the front end side of the apparatus main body 2). ) Projecting outward from the partition wall 22.

  Then, as described above, in the state where the first receiving member 31 is inserted into each insertion hole 23 and the proximal end side of the first receiving member 31 is accommodated in the mounting portion 232, the first engaging portion 41 is positioned on the back side of the second engaging portion 42. As a result, the first engaging portion 41 and the second engaging portion 42 are engaged with each other, and the first receiving member 31 is less likely to be detached from the mounting portion 232.

  As described above, according to the uninterruptible instrument replacement device 1, the introduction portion 231 of the lower end edge (side edge) 22 a of the partition wall portion 22 is inserted into the insertion hole 23 of the partition wall portion 22 adjacent to the right end. The first receiving member 31 is inserted. That is, the rod-shaped first receiving member 31 can be inserted into the insertion hole 23 from the side (side surface), and it is not necessary to insert the first receiving member 31 into the insertion hole 23 from the tip. For this reason, even when the side wall 103b of the instrument box 103 is close and the working space is narrow, the instrument box 103 etc. does not get in the way, and the first receiving member 31 can be easily and quickly inserted into the insertion hole 23. It becomes possible to do.

  As a result, there is no need to pull up the electric wire 102 and the like, and the electric shock due to the electric wire 102 being disconnected and the watt-hour meter 101 dropping off and being damaged are alleviated and the safety is improved. Further, since the receiving members 31 and 32 can be reliably inserted regardless of the work environment, the replacement work of the watt hour meter 101 by the uninterruptible meter replacement device 1 can be more reliably performed.

  In addition, since the insertion hole 23 of the right end and the partition 22 adjacent to the right end has a key shape (inverted L shape), the first receiving member 31 is unlikely to be detached from the insertion hole 23. Moreover, with the first receiving member 31 inserted into the insertion hole 23, the first engaging portion 41 of the first receiving member 31 and the second engaging portion 42 of the partition wall portion 22 are engaged. Thus, the first receiving member 31 is prevented from slipping out from or being displaced from the introducing portion 231 of the insertion hole 23. As a result, the insertion state of the first receiving member 31 can be properly maintained.

  Although the embodiment of the present invention has been described above, the specific configuration is not limited to the above embodiment, and even if there is a design change or the like without departing from the gist of the present invention, Included in the invention. For example, in the above embodiment, the introduction portion 231 is provided only in the right end of the apparatus main body 2 and the insertion hole 23 of the adjacent partition wall portion 22, but depending on the length of the receiving members 31 and 32, the work space, and the like. In addition, the introduction portion 231 may be provided in the insertion hole 23 of the partition wall portion 22 on the left end or the other insertion hole 23.

  Moreover, although the case where the two receiving members 31 and 32 were provided was demonstrated, depending on the number of the electric wires 102, the magnitude | size of the instrument box 103, etc., you may provide only one receiving member. Further, the first receiving member 31 may be fixed by connecting the first engaging portion 41 and the second engaging portion 42.

DESCRIPTION OF SYMBOLS 1 Uninterruptible instrument replacement apparatus 2 Apparatus main body 21 Electric wire insertion part 22 Bulkhead part 23 Insertion hole 231 Introduction part 232 Mounting part 31, 32 Receiving member 4 Terminal 41 First engagement part 42 Second engagement part 101 Electric energy Total 102 Electric wire 103 Instrument box

Claims (2)

A plurality of electric wire insertion portions into which a plurality of electric wires connected to the watt hour meter can be inserted are provided in a comb shape, and an insertion hole is formed through each partition wall portion partitioning each electric wire insertion portion. An uninterruptible instrument replacement device for inserting a rod-shaped receiving member and electrically connecting the wire covering member with a push-off electrode while the wire is positioned between the receiving member and the wire insertion portion. Because
The insertion hole of the partition wall portion positioned at least on the side end has an introduction portion opened from a side edge of the partition wall portion, and the receiving member can be inserted from the introduction portion.
An uninterruptible instrument replacement device. A first engaging portion is provided on the receiving member, and a second engaging portion is provided on the partition located at the side end;
With the receiving member inserted into the insertion hole, the first engaging portion and the second engaging portion are engageable.
The uninterruptible instrument replacement device according to claim 1.

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