JP7405407B2 - Power distribution equipment protective equipment - Google Patents

Description

The present invention relates to a power distribution equipment protector for protecting power distribution equipment by being attached to the arm of a utility pole to prevent snow cover and bird nesting.

BACKGROUND ART It has been known that snow covers power distribution equipment such as utility poles and wires, and birds nest there, which adversely affects power distribution equipment. Particularly in mountainous areas and cold regions, it is not easy to remove these substances, and an efficient method for protecting them is desired.

Patent Document 1 discloses a snow cap prevention device for an arm for supporting a utility pole, in which a cap shaped like a palm with a pointed top and opened diagonally downward on both sides is fixed upright on the arm. In this configuration, since the cap is a plate, there is a problem that it is susceptible to wind pressure.

Patent Document 2 describes a snow and ice formation prevention device for power transmission and distribution system equipment, which is connected to a heating wire buried in a heat storage body to prevent snow and ice formation by the heat of the heat storage body. Although this configuration is effective against snow accumulation, etc., it is expensive and requires maintenance because it requires electrical equipment, and it is not effective in preventing nest building.

Patent Document 3 describes deploying a screen on the side of a steel tower, but this is not a technology that prevents general utility poles from being covered with snow or from nesting.

Patent Document 4 discloses a device for preventing snow damage to objects in high places, and discloses a structure in which a swinging device that swings in the wind is provided at the top, and a flexible plastic net cover surrounding the objects in high places is connected to this swinging device. has been done. Although the present disclosure describes surrounding signals and utility poles with a mesh cover, installation is time-consuming, and it is difficult to use the live wire method, especially in power distribution equipment. There is also the problem that nesting becomes easier.

Jitsukaisho 61-184060 Japanese Patent Publication No. 58-127514 Utility Model Hei3-76964 Jitsukaisho 61-131451

The present invention was created to solve the problems of these conventional technologies, and provides a power distribution system that has a simple configuration, effectively prevents snow capping and nesting on utility poles, and that can be installed safely and easily. The purpose is to provide equipment protection equipment.

In order to solve the above problems, the present invention provides the following power distribution equipment protector.
According to a positional embodiment of the present invention, there is provided a power distribution equipment protector that is attached to an arm body horizontally installed on a utility pole in a substantially horizontal direction, and includes a detachable member that can be attached to and detached from the arm body using an indirect live wire tool; A power distribution equipment protector is provided that includes a support member extending upward from the member and a net-like member attached to the support member.

The detachable member may be fixed by bolting a U-shaped clamp wound around the upper surface, one side surface, and the lower surface of the square pipe-shaped arm body to an opening on the remaining one side surface.

The above-described detachable member may have a protruding rod-shaped grip portion that can be gripped by an insulating rod.

The above net-like member may be a resin net, and may have a width of 30 cm to 80 cm and a height of 30 cm to 80 cm. The size is particularly preferably in the range of 50 cm to 70 cm in width and 40 cm to 60 cm in height.

The height of the support member may be within a range of 40 cm to 90 cm. In particular, the height is preferably approximately 60 cm.

The present invention has the following effects.
By equipping the power distribution equipment protector with a detachable member so that it can be attached and detached using an indirect live-line tool, there is no need to stop power transmission, and installation and maintenance work can be performed easily. In particular, it is possible to work in difficult-to-access locations, such as mountainous areas, in sequence and in a short period of time, greatly increasing the feasibility of deployment.

By simply attaching the net-like member to the support member, it is possible to effectively prevent snow cover and nesting, and the simple structure makes it difficult to break and also contributes to cost reduction.

The size of the present invention is preferably within the range of 30 cm to 80 cm in width and 30 cm to 80 cm in height, but with this size, it is difficult to pass it through the gap on one side of the arm extending on both sides of the utility pole. The workability is favorable because it can be done. Moreover, the net-like member is not easily deformed and sufficient rigidity can be ensured.

Furthermore, it has been found that setting the height of the support member within the range of 40 cm to 90 cm is particularly effective because snow caps are less likely to occur.

FIG. 2 is a front view of the power distribution equipment protector according to the present invention. FIG. 2 is a plan view of a power distribution equipment protector according to the present invention. FIG. 2 is a right side view of the power distribution equipment protector according to the present invention. FIG. 3 is a diagram showing a state in which the power distribution equipment protector is gripped by an indirect live wire tool. FIG. 3 is a diagram showing a state in which the power distribution equipment protector is attached to an arm body. FIG. 3 is a diagram showing a state in which the power distribution equipment protector is attached to the power distribution equipment. It is a figure which shows another Example of the detachable member based on this invention. This is another embodiment of the power distribution equipment protector according to the present invention. This is another embodiment of the power distribution equipment protector according to the present invention.

Embodiments of the present invention will be described below based on examples shown in the drawings. Note that the embodiments are not limited to the following.
1 to 3 are a front view, a top view, and a right side view, respectively, of a power distribution equipment protector (1) according to the present invention.

The power distribution equipment protector (1) includes a detachable member (10), a column (20) which is a support member extending directly above the detachable member (10), and a mesh member (30) attached to the column (20). ).

The detachable member (10) is composed of a metal U-shaped clamp (11) and a bolt (12) that fastens the opening of the clamp (11).
As shown in FIG. 3, the clamp (11) is wound around the top surface (2a), one side surface (2b), and bottom surface (2c) of the square pipe-shaped arm body (2), and the remaining one side surface (2d). The opening is fastened and fixed with bolts (12).

The head (13) of the bolt is loosely fitted into the upper end of the clamp (11), and with the bolt expanded outward, the arm body (2) is sandwiched from the opening and the lower part of the bolt (12) is clamped. Pass it through the slit (15) at the bottom end of (11) and tighten the nut (14). As a result, the distance between the upper and lower sides of the clamp (11) is shortened and the clamp (11) is completely fixed to the arm body (2).

The above-mentioned clamp for attaching to the arm body (2) by an indirect live wire method is well known, and other known members may be used as the detachable member (10) in the present invention.
A feature of the present invention is that a strut (20) extends from such a removable member (10), and a net-like member (30) is further provided.

A long nut (17) for attaching the support column (20) is welded and fixed on the top surface of the upper side of the clamp (11) and vertically above the center of the cross section of the arm body (2). The long nut (17) has a length of 40 mm, and can be screwed into the support column with sufficient stability.

The strut (20) is composed of a strut body (22) and a plurality of plates and bolts that hold a mesh member (30). Then, after screwing the threaded portion (21) provided at the lower end of the support main body (22) into the long nut (17) of the detachable member (10), the fixing nut (18) is tightened to assemble.

In this embodiment, the strut main body (22) is entirely constructed of threaded bolts, and the portion above the fixing nut (18) is formed by wrapping a self-fusing tape. In order to prevent short circuits, the self-fusing tape is preferably made of an insulating material, and the area above the detachable member (10) is preferably completely insulated.
According to such a configuration, the present instrument can be manufactured at low cost, but the specific implementation method can be freely changed.

The strut body (22) has a length of 600 mm from the upper side of the clamp (11), and an upper plate (23a) with a height of 32 mm and a width of 200 mm is welded and fixed to the upper end of the strut body (22). 22) A lower plate (24a) of the same size is welded and fixed at an intermediate position, more specifically at a position 290 mm from the upper side of the clamp (11).

As the net-like member (30), a net made of resin, for example polypropylene, is attached to a second upper plate (23b) facing the upper plate (23a) and a second lower plate (24b) facing the lower plate (24a). Pinch and secure with bolts (25).
At this time, in order to prevent short circuits, it is desirable that not only the net but also each plate and bolt be made of an insulating material such as resin.

The net member (30) has a height of 500 mm and a width of 620 mm. This size is preferable for workability because it can be passed through the gap on one side of the arm body (2) extending on both sides of the utility pole. At the same time, it is a suitable size because the net-like member is difficult to deform and can ensure sufficient rigidity.

The bottom side of the net-like member (30) is 170 mm from the top side of the clamp (11). Since various members such as jumper wires and insulators are usually attached to the arm body (2), it is convenient to leave a height of 100 mm to 200 mm so as not to interfere with these members.
Particularly preferably, the distance between the bottom side of the net member (30) and the top side of the clamp (11) is 150 to 200 mm.

The size of the net-like member (30) is preferably within the range of 30 cm to 80 cm in width and 30 cm to 80 cm in height. In particular, a range of 50 cm to 70 cm in width and 40 cm to 60 cm in height is preferable for installation through gaps between utility poles, arm bodies, overhead wires, etc.

The height of the strut (20) is preferably within the range of 40 cm to 90 cm. If it is too long, it is likely to fall down due to wind pressure, etc., and if it is too short, the effects of the present invention cannot be fully exhibited. Based on these considerations, the present invention found that the above range is the optimum range.

Next, specific aspects of attaching the present invention will be explained.
FIG. 4 is a diagram showing a state in which the power distribution equipment protector is gripped by an indirect live wire tool. The present invention provides a power distribution equipment protector (1) that can be installed by a live wire construction method using an indirect live wire tool. In the illustration, the lower plate (24a) is grasped and lifted upward by the insulating rod (3).

In the figure, it can be seen that the bolt (12) of the detachable member (10) opens upwards to open the opening of the clamp (11). In this state, the clamp (11) is held between the arm body (2), the bolt (12) is swung downward, and the nut (14) is tightened to install the clamp (11).
Since all work can be done with insulated wires, a safe live wire construction method is realized.

As mentioned above, the support column (20) is located on the central axis of the cross section of the arm body (2), so it is well-balanced, does not easily fall over even when the clamp (11) is mounted on the insulated rod, and the bolt ( 12) is configured to be easily fixed.

FIG. 5 is a diagram showing a state in which the power distribution equipment protector (1) is attached to the arm body (2).
In this figure, the head (13) of the bolt (12) has a hexagonal shape cut on both the left and right sides, so that it can easily swing to the left in the figure, and when the nut (14) is turned, the bolt It can be seen that the upper end of the clamp (11) is bent upward and interferes with the head (13) so that the clamp (12) does not rotate together. Such a structure is also a particularly preferable structure when working with the indirect live wire method.
The structure of the bolt (12) is arbitrary, and may be a simple structure in which a square plate for preventing rotation is welded to the upper end of a bolt (12), for example, using a threaded bolt.

Furthermore, as shown in this figure, it is also important that the height is such that the insulator (26) attached to the arm body (2) and the net-like member (30) do not come into contact with each other.

FIG. 6 is a diagram showing a state in which the power distribution equipment protector (1) is attached to the power distribution equipment.
As power distribution equipment, an arm body (2) is generally installed horizontally on a utility pole (4), and the top of this utility pole (4), the arm body (2), the distribution line (5), A problem arises in that a large amount of snow accumulates on peripheral members such as jumper wires (6), causing deformation and failure of equipment. There is also the problem that crows and the like nest between the arm body (2) and the power distribution line (5) even outside of the winter season.

When the power distribution equipment protector (1) of the present invention is attached one on each side of the arm body (2) as shown in the figure, the snow will easily break and fall between the net-like members (30), and the snow will be covered with snow. can be significantly suppressed.
In particular, when snow adheres to the net member (30) to some extent and then falls in clumps, the snow accumulated on the arm body (2) and other surrounding members will also be caught up and fall, protecting the entire power distribution equipment. can.

In addition, from the viewpoint of preventing birds from nesting, it is difficult for birds to perch on the arm body (2), and the net-like member (30) sways in the wind, which also has the effect of keeping birds away. Especially in mountainous areas, removing nests takes a lot of effort, so installing this device can improve maintenance.

In the above embodiment, the removable member (10), the support column (20), and the mesh member (30) are each configured as separate members and fixed with bolts, etc., but some or all of these may be integrated. It is also possible to mold it. For example, the support member and the net-like member may be integrally molded from resin.
Alternatively, a frame may be arranged around the outer periphery of the net-like member, and the frame and the support member may be fixed.

Another embodiment of the detachable member (10) according to the present invention is shown in FIG.
In this embodiment, a rod-shaped gripping part (16) is provided to protrude horizontally from one side surface of the clamp (11).
The grip part (16) is made of an insulating rod and has a shape that is easy to grip, and can be firmly held at the height of the clamp (11), making it easier to attach it to the arm body (2).

Furthermore, since the clamp (11) can be pushed straight from the opposite side of the opening, it has the advantage of being easy to attach even when there is no margin in the U-shaped dimensions of the arm body (2) and the clamp (11).
The gripping portion (16) preferably has a thickness of about 10 mm and a length of about 50 mm.

The present invention is not limited to the configuration in which the support (20) and the net-like member (30) are connected by a plate or the like as described above, but may also be a structure in which the lower side of the net-like member and the support are fitted together, and the net-like member is attached to the upper end of the support. .

For example, as shown in FIG. 8, (a) the lower end of the mesh member has a male shape as shown in (b), and the upper end of the column has a female shape as shown in (c). It may also be provided with one for easy installation.

Alternatively, a structure may be adopted in which, for example, a part of the net-like member is used as an indicator member without using a support column as a supporting member. As shown in FIG. 9, (a) the net-like member has an extending portion partially extending downward from the lower side, and this extending portion serves as a pointing member and is fitted into the clamping portion of the detachable member attached to the arm body.

Furthermore, as shown in (c), by connecting the upper sides of the net-like member (a) with a connecting tool, it is possible to stably install the arm bodies when they are horizontally arranged in parallel.

The present invention provides a power distribution equipment protector having the above-described configuration that effectively prevents snow from accumulating on utility poles and nesting with a simple configuration, and which can be installed safely and easily. be.

1 Power distribution equipment protector 2 Arm body 3 Indirect live line tool 4 Utility pole 10 Attachment/detachment member 11 Clamp 12 Bolt 13 Bolt head 14 Nut 15 Slit 16 Gripping portion 17 Long nut 18 Fixing nut 20 Support 21 Threaded portion 22 Support main body 23a Upper plate 23b Second upper plate 24a Lower plate 24b Second lower plate 25 Bolt 26 Insulator 30 Net member

Claims (5)

A power distribution equipment protector attached to an arm body installed horizontally in a substantially horizontal direction on a utility pole,
a detachable member that can be attached to and detached from the arm body using an indirect live wire tool;
a support member extending upward from the detachable member;
A configuration including a net-like member attached to the support member,
The net-like member is a substantially flat plane that stands substantially perpendicularly along the longitudinal direction of the arm body directly above the arm body,
The removable member is fixed by bolting the U-shaped clamp that wraps around the upper surface, one side, and the lower surface of the square pipe-shaped arm body to the opening on the remaining one side.
A power distribution equipment protector characterized by: The support member is
a support main body that stands upright from the detachable member;
comprising an upper plate and a lower plate attached to the support body,
The mesh member is fixed to the upper plate and the lower plate.
The power distribution equipment protector according to claim 1. The power distribution equipment protector according to claim 1 or 2, wherein the detachable member has a protruding rod-shaped gripping portion that can be gripped by an insulating rod. The net-like member is a resin net,
The power distribution equipment protector according to any one of claims 1 to 3, wherein the width is within the range of 30 cm to 80 cm and the height is within the range of 30 cm to 80 cm. The power distribution equipment protector according to any one of claims 1 to 4, wherein the height of the support member is within a range of 40 cm to 90 cm.

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