JP2017055471A - Draining device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a draining device which is capable of effectively delaying corrosion of an anchor clamp holding a wire and may also be easily fitted even to an existing wire.SOLUTION: The draining device consists of two split members holding a wire in a lateral direction. In each of the split members, an engage groove for receiving the wire is formed on an opposing surface which opposes the other split member and a first semi-conical surface and a second semi-conical surface are continuously formed on an outer peripheral surface in an axial direction of the engage groove. The first semi-conical surface is constituted while extending from the engage groove at a predetermined tilt angle with respect to the engage groove, and the second semi-conical surface is formed continuously to the first semi-conical surface and constituted while extending at a larger tilt angle than the tilt angle of the first semi-conical surface, such that drainage is made excellent. On the second semi-conical surface, a plurality of guide grooves are provided in parallel from a boundary with the first semi-conical surface to an outer edge while extending substantially in parallel with the opposing surface, thereby promoting the downward movement of water.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a draining device that is attached to a linear body such as an electric wire and blocks and drops the water flowing through the linear body, and more particularly to a draining device that enhances the draining effect by promoting the fall due to the gravity of water. .

  As shown in FIG. 5, a tension transmission line tower 100 that stretches and supports an electric wire has a tension clamp 110 that holds the electric wire 102 on both sides of the armrest 101 and a tensile insulator 120. The electric wire 102 is attached via

  More specifically, the electric wire 102 installed between the steel towers is gripped near the end by the retention clamp 110 and is inserted through the retention clamp 110 so that the end extends downward and extends downward. The end of the jumper wire 103 is connected to the end, and the jumper wire 103 is suspended on the side of the tower 100 with the wire 102 stretched on both sides of the tower 100 via the retaining clamp 110 and the insulator device 120. I am trying to make an electrical connection.

The retention clamp 110 is, for example, a bolt tightening type, and includes a wire support portion 111 that is curved in a circular arc shape along the electric wire 102, and has a U-shaped cross section on a curved surface along the electric wire of the wire support portion 111. An electric wire receiving groove is formed. Then, the electric wire 102 is held in the electric wire receiving groove, and the electric wire 102 is pressed against the electric wire support portion 111 by a fastening member 112 such as a bolt from the open side of the electric wire receiving groove and is gripped.
The insulator device 120 is configured by combining a plurality of members such as the tension insulators 121, the arc horn 122, and the connection hardware 123.

  By the way, the above-mentioned retention clamp 110 is classified into two types, a forward suspension clamp 110-1 and a reverse suspension clamp 110-2, according to the gradient of the electric wire due to the difference in height between adjacent towers. At locations where the height difference between the towers is large, rainwater flows along the electric wire 102 and flows toward the lower steel tower. Therefore, the reverse suspension clamp 110-2 has a larger amount of rainwater in contact with the forward suspension clamp 110-1. Become.

  For this reason, even if it is the clamp 110 installed in the same period, the reverse suspension clamp 110-2 has the problem that the progress of deterioration by corrosion is accelerated compared with the forward suspension clamp 110-1.

  In order to cope with such corrosion, it is considered to provide a rainwater discharge groove for discharging rainwater that has entered into the wire receiving groove of the wire support portion 111 provided in the retaining clamp 110 to the outside. (See Patent Document 1).

JP 2002-223518 A

  However, even if a rainwater discharge groove is provided in the wire receiving groove, the amount of rainwater guided to the retention clamp 110 through the electric wire 102 is not reduced, so that a lot of rainwater is supplied to the retention clamp 110. In addition, in the portion outside the electric wire support part 111 that is not in contact with the electric wire 102, the effect of the rainwater discharge groove cannot be expected, so that it corrodes at the same speed as before. Thus, a sufficient corrosion prevention effect was not obtained.

  In addition, in order to provide a rainwater discharge groove in the wire receiving groove, it is necessary to temporarily remove the existing retention clamp 110 and attach a retention clamp in which the rainwater discharge groove is formed. is not.

  The present invention has been made in view of such circumstances, and can effectively delay the corrosion of the retaining clamp, and can be easily attached to a linear body such as an existing electric wire. The main problem is to provide a device.

  In order to achieve the above object, a draining device according to the present invention is a draining device attached to a linear body and blocking and dropping the water flowing through the linear body. Each of the divided members is formed with an engaging groove for receiving the linear body on the facing surface facing the other divided member, and the engaging groove is formed on the outer peripheral surface. A first semiconical surface and a second semiconical surface are continuously formed along the axial direction, and the first semiconical surface is inclined from the engagement groove to the engagement groove by a predetermined inclination angle. The second half-conical surface is formed subsequent to the first half-conical surface, and is extended at an inclination angle larger than the inclination angle of the first half-conical surface. And the two divided members are fixed by a coupling means with the linear body sandwiched therebetween. It is.

Accordingly, the linear body is sandwiched between the two divided members so that the first half-conical surface is located above the second half-conical surface with respect to the linear body having a gradient, and the state sandwiched by the coupling means is fixed. For example, a draining device can be immediately attached to a linear body such as an existing electric wire.
And in the state where the draining device is attached to the linear body, the water flowing along the linear body from the upper side flows along the first semiconical surface when reaching the draining device. It begins to flow downward along a surface with a larger gradient than the shape, and then flows downward through a surface with a larger gradient when it reaches the second semi-conical surface. It will be easy to do.

Here, a plurality of guide grooves extending substantially parallel to the facing surface from the boundary with the first half-conical surface to the outer edge may be provided in parallel on the second half-conical surface.
In such a configuration, by attaching the facing surface of the dividing member along the vertical direction, the water approaching the second semiconical surface can be guided downward along the guide groove, and the draining device It is possible to promote the downward movement of the water flowing along the surface of the water.

  In addition, when the two split members are attached to the linear body with their facing surfaces substantially vertical, water may flow downstream through the gap between the split members. Therefore, it is preferable that an elastic member is interposed between the two divided members so as to be airtight.

In addition, each of the divided members has a partially flat outer peripheral surface opposite to the side facing the other divided member, and a through hole through which the bolt constituting the connecting means is inserted is opened on the flat surface. It is good to let them.
According to such a configuration, even when a bolt is used as the coupling means, the work is performed on a flat surface, the coupling work can be performed easily and reliably, and a stable coupled state can be obtained. .

  As described above, according to the draining device of the present invention, it is constituted by two divided members sandwiched from the side with respect to the linear body, and each divided member is lined on the opposite surface facing the other divided member. An engaging groove for receiving the shaped body is formed, and a first semiconical surface and a second semiconical surface that are continuous along the axial direction of the engaging groove are formed on the outer peripheral surface, and the first semiconical surface is formed The engaging groove extends from the engaging groove with a predetermined inclination angle, and the second semiconical surface extends at an inclination angle larger than the inclination angle of the first semiconical surface. Since the two divided members are fixed by the coupling means with the linear member sandwiched therebetween, it can be easily attached to a linear member such as an existing electric wire, and The water flowing along the linear body gradually approaches a vertical surface with a two-stage semi-conical surface and can be dropped. Kusuru it can, it is possible to eliminate the water flowing to the downstream side of the draining device. As a result, if it is installed on the electric wire on the upper side of the retention clamp, corrosion of the retention clamp can be effectively delayed.

  In addition, a plurality of guide grooves that extend substantially parallel to the opposing surface from the boundary with the first half cone surface to the outer edge are arranged in parallel on the second half cone surface, so that the water is transmitted through the guide groove. It is easy to guide the water downward, the downward flow of water is promoted, and water can be dropped more effectively.

  Further, when attaching the two divided members to the linear body with the respective facing surfaces being substantially vertical, the elastic members are interposed between the two divided members so as to be airtightly attached, thereby flowing between the divided members. Water can be eliminated, and water flowing downstream can be blocked more effectively.

  Furthermore, each of the divided members has a partially flat outer peripheral surface opposite to the side facing the other divided member, and a through hole through which a bolt constituting the coupling means is inserted is opened on the flat surface. By doing so, the operation of attaching the draining device is facilitated, and the tightening state of the bolt is not insufficient, and a stable attachment state can be ensured.

FIG. 1 is a view showing a state in which a draining device according to the present invention is attached in the vicinity of an electric wire clamp. FIG. 2 is a view showing a state in which the draining device according to the present invention is attached to an electric wire, wherein (a) is a side view thereof, (b) is a view seen from the axial direction of the electric wire, and (c) is a perspective view thereof. FIG. FIG. 3 is a diagram illustrating a configuration example of the guide groove provided in the second taper portion of the water draining device. FIG. 4 is a diagram for explaining a state in which a draining device according to the present invention is attached to an inclined electric wire to block and drop water. FIG. 5 is a diagram illustrating a state in which the electric wires are attached to the steel tower.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

In FIG. 1, the state which provided the draining device 1 which concerns on this invention in the upper side vicinity of the reverse suspension clamp 110-2 of the electric wire 102 which consists of the hard copper stranded wire inclined and installed between the steel towers is shown.
The electric wire 102 is gripped and fixed to a retention clamp 110, and the retention clamp 110 is attached to a brace of a steel tower (not shown) via a tension insulator 120.

The retention clamp 110 is, for example, a bolt-clamping type formed of a metal material, and includes a wire support portion 111 that is bent in an arc shape along the wire 102, and the wire support portion 111 includes the wire 102. An electric wire receiving groove 113 having a U-shaped cross section is formed. On the open side of the wire receiving groove 113 of the wire support portion 111, a tightening member 112 is provided for tightening the electric wire 102 laid in the wire receiving groove 113 from the open side of the wire receiving groove 113. This clamping member 112 is clamped between the electric wire support part 111 by the holding metal fitting 114 which clamps the electric wire 102 to the electric wire support part 111, this holding metal fitting 114 is clamped by the bolt 115 and the nut 116, and the electric wire 102 is electric wire The support unit 111 is pressed and held and fixed. In this example, the tightening member 112 is provided at three locations along the wire receiving groove 113.
The insulator device 120 is also known per se, and is configured by combining the tension insulators 121, the arc horn 122, and the connection hardware 123.

  The draining device 1 is attached to a portion of the electric wire 102 located above the retention clamp 110 (the portion of the electric wire 102 slightly away from the retention clamp 110 with respect to the direction of the water flowing through the electric wire). Yes.

  As shown in FIG. 2, the water draining device 1 is configured by two divided members 2 that sandwich an electric wire from the side, and each divided member 2 has a facing surface facing the other divided member. 3 is formed with an engaging groove 4 for receiving the electric wire 102.

  A first half-conical surface 5 and a second half-conical surface 6 are formed continuously along the axial direction of the engagement groove 4 on the outer peripheral surface of each divided member 2.

  The first semi-conical surface 5 is formed by a tapered curved surface extending from the engagement groove 4 to the engagement groove 4 at a predetermined inclination angle. That is, the tip is formed with a radius of curvature equal to that of the engaging groove 4, the end is formed with a larger radius of curvature, and the intermediate portion is formed so that the radius of curvature gradually increases gradually from the tip to the end. .

  On the other hand, the second semiconical surface 6 is formed following the first semiconical surface 5, and is a tapered curved surface extending at an inclination angle larger than the inclination angle of the first semiconical surface 5. It consists of That is, the end of connection with the first half-conical surface 5 coincides with the radius of curvature of the end of the first half-conical surface 5, and the end of the first end is abruptly widened, and the end is formed with the largest radius of curvature. .

Further, a plurality of guide grooves 10 extending from the boundary with the first half-conical surface 5 to the outer edge and extending substantially parallel to the facing surface 3 are formed on the second half-conical surface 6 of each divided member 2. It is installed side by side. As shown in FIG. 3, the guide groove 10 has a groove width (W1) of about 1 mm, and the width (W2) between adjacent guide grooves 10 and the guide groove 10 is also about 1 mm. It is formed to the extent.
The range where the guide groove 10 is formed may be formed on the entire second semi-conical surface 6, but in this example, when the draining device 1 (dividing member 2) is attached to the electric wire 102. It is formed in a part of the lower side.

  Further, the outer peripheral surface of each divided member 2 on the side opposite to the side facing the other divided member 2 (the side opposite to the facing surface 3) is partially formed on the flat surface 20. In this example, a flat surface 20 is formed in parallel with the facing surface 3 from the intermediate portion of the first semiconical surface 5 to the end of the second semiconical surface 6. A through hole 22 for inserting the fastening bolt 21 into the flat surface 20 is formed.

  The through holes 22 are formed at two locations on both sides of the engagement groove 4 so as not to interfere with the engagement groove 4. When the fastening bolt 21 is inserted through the through hole 22 of the pair of split members 2 from one split member 2 with the electric wire 102 sandwiched between the two split members 2, the tip protrudes from the other split member 2. The nuts 23 are screwed into the front ends of the fastening bolts 21 to fasten the divided members 2. The fastening bolt 21 and the nut 23 constitute a coupling means for fixing the two divided members 2 with the electric wire 102 interposed therebetween.

Further, when the electric wires are sandwiched between the opposing surfaces so that the electric wires are accommodated in the engaging grooves of the two divided members, the elastic member 30 is interposed therebetween so that no gap is formed between the divided members. .
As shown in FIG. 2B, the elastic member 30 is, for example, a rubber-like sheet shaped to match the shape of the facing surface 3 of the divided member 2, and both sides of the engaging groove 4 of the divided member. Are formed in a shape that can be in close contact with the entire facing surface, and a through hole 31 is formed at a position aligned with the through hole 22 of the split member 2.

  Accordingly, the two divided members 2 sandwich the electric wire 102 with the respective facing surfaces 3 substantially vertical, and the elastic member 30 is interposed between the through holes 22 and 31 between the upper side and the lower side of the electric wire 102. While aligning the positions, the outer edge of the elastic member 30 is sandwiched while matching the outer edge of the divided member 2, the fastening bolt 21 is inserted into the through holes 22 and 31 of the divided member 2 and the elastic member 30, and the nut 23 is screwed together. When the two members are tightened, the two divided members 2 are fixed in an airtight manner via the elastic member 30.

  According to the above configuration, the first semi-conical surface 5 is located above the second semi-conical surface 6 in the portion of the electric wire 102 that is above (upstream) the reverse hanging clamp 110-2. As shown in FIG. 4, the water flowing along the electric wire from the upper side flows along the surface of the first semi-conical surface 5 when the water draining device 1 is reached. When the second semi-conical surface 6 is reached thereafter, the surface with a larger gradient flows downward. The water that flows down through it is easy to fall.

  In addition, since a plurality of guide grooves 10 (grooves extending in parallel with the facing surface 3) extending in the vertical direction are formed in the lower part of the second semi-conical surface 6, the second semi-conical surface 6 reaches the second semi-conical surface 6. The water can be easily guided downward and can be quickly moved downward, and the fall of the water flowing along the surface of the draining device 1 can be promoted.

  Further, since the elastic member 30 is interposed between the two divided members 2 so as to be airtightly attached, the flow from the draining device 1 to the electric wire on the downstream side through the gap between the two divided members 2 Therefore, it is possible to reliably block water to be guided, and to reliably block water guided to the reverse hanging clamp 110-2. As a result, corrosion of the retaining clamp 110 can be effectively delayed.

  In the above configuration example, an example of a bolt tightening type is shown as a clamp, but even when a wedge-type retention clamp is used, the same effect can be obtained by attaching a similar draining device. It becomes.

DESCRIPTION OF SYMBOLS 1 Draining device 2 Dividing member 4 Engaging groove 5 1st semi-conical surface 6 2nd semi-conical surface 10 Guide groove 20 Flat surface 21 Fastening bolt 23 Nut 30 Elastic member 102 Electric wire

Claims (4)

A draining device that is attached to a linear body and intercepts and drops the water flowing through the linear body,
It is constituted by two divided members sandwiched from the side with respect to the linear body,
Each of the divided members forms an engaging groove for receiving the linear body on the facing surface facing the other divided member,
Forming a first semi-conical surface and a second semi-conical surface continuously along the axial direction of the engaging groove on the outer peripheral surface;
The first half-conical surface is configured to extend from the engagement groove with respect to the engagement groove at a predetermined inclination angle, and the second half-conical surface is configured to have an inclination angle of the first half-conical surface. Configured to extend at a larger inclination angle,
The draining device, wherein the two divided members are fixed by a coupling means in a state where the linear body is sandwiched therebetween.   The second semi-conical surface is provided with a plurality of guide grooves extending in parallel with the opposing surface from the boundary with the first semi-conical surface to the outer edge. Item 10. A draining apparatus according to item 1.   The said two division member is attached to the said linear body in the state which made each said opposing surface substantially vertical, and it is airtightly attached | interposed with an elastic member interposed between them. The draining device as described.   Each of the divided members has a partially flat outer surface opposite to the side facing the other divided member, and a through hole through which the bolt constituting the coupling means is inserted is opened on the flat surface. The draining device according to any one of claims 1 to 3, wherein the draining device is provided.

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