JPH086978Y2 - Assembly structure of ascending tower prevention device - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates mainly to an assembling structure of an ascending tower preventive device for a high-voltage power transmission line or the like by using a steel tower overhanging shelf.

[0002]

2. Description of the Related Art For example, an iron tower for a high-voltage power transmission line is dangerous if an outsider, a child, or the like goes up, so that each leg (A1) of the iron tower (A) is conventionally arranged as shown in FIG. At the required height (usually a height of several meters), an ascending tower prevention device (B) is provided by a substantially horizontal shelf that projects outward.

There are various structures for the ascending tower preventive device (B), and for example, the utility model publication 5 proposed by the present applicant.
The ascending tower prevention device disclosed in Japanese Patent Publication No. 4-27240 has a substantially fan-shaped overhanging shelf frame formed by passing several arc-shaped rods between radially projecting frame plates, and a plane substantially circular shape around the legs. Part of the shelf is constructed by arranging the shelf so that it can be lifted up and down in a substantially horizontal direction. Is open.

[0004]

In the device for preventing ascending towers proposed above, the distance between the arc-shaped bars of the fan-shaped projecting shelf frames forming the shelves is about 200 mm, which is relatively wide. In that case, it may be relatively easy to pass through, which is dangerous. In order to prevent such passage, it is sufficient to narrow the interval between the arc-shaped bars of each overhanging shelf frame,
If the number of arc-shaped rods is increased in order to reduce this interval, one shelf frame itself becomes heavy, and it becomes difficult to carry out handling work such as transportation until it is attached to the legs of the tower or attachment work to the legs.

Therefore, in the present invention, in addition to the overhanging shelf frame, a through-passage-preventing panel formed by a required number of rods in a net-like shape is formed, and is attached to the legs of the tower of the ascending tower preventing device. At the time of assembling, the panel is attached to the overhanging shelf frame.

In this case, as a means for attaching the panel to the overhanging shelf frame, it is troublesome and time-consuming to join the panels by using, for example, a welding means, or to tie a required portion with a wire. Using a fastener having a complicated structure is troublesome and costly. Of course, there is a problem in safety in the case of a structure that can be easily removed.

Therefore, when the through-passage prevention panel formed separately from the overhanging shelf frame as described above is attached to the overhanging shelf frame by attaching, the connecting structure is as simple as possible. It is desired to be able to maintain a bonded state that can be done and cannot be easily released once bonded.

The present invention has been made in view of the above, and in an ascending tower preventive device including an overhanging shelf frame and a panel for preventing slip-out, which is different from the overhanging shelf frame, a work for assembling the panel to the overhanging shelf frame. It is an object of the present invention to provide an assembling structure of an ascending tower preventing device, which is easy to remove and cannot be easily detached once assembled, and which can maintain a good joined state.

[0009]

DISCLOSURE OF THE INVENTION The present invention for solving the above-mentioned problems is an assembly structure of an ascending tower preventing device by means of a substantially horizontal overhanging shelf provided at a required height position of the legs of a steel tower. A plurality of fan-shaped overhanging shelf frames formed by bridging a plurality of arc-shaped rods between a required number of frame plates that are radially connected and are connected to each other,
In addition to the overhanging shelf frame, an arc-shaped rod and a radial rod extending in the radial direction, and a through-passage prevention panel formed in a substantially fan-shaped net shape corresponding to each overhanging shelf frame, and the through-passage prevention panel, It is placed on the arc-shaped bar of the overhanging shelf frame, and at the intersection of the radial bar of the panel and the arc-shaped bar of the overhanging shelf frame, it has appropriate elasticity and both ends are opposite to each other. The hook formed as a hook-shaped locking part is straddled over one bar, and the locking parts at both ends are locked by the other bar so that it is connected to the overhanging shelf frame. It is characterized by.

[0010]

According to the assembling structure of the ascending tower preventing apparatus of the present invention described above, the panel for preventing passage is formed separately from the fan-shaped overhanging shelf frame, and is individually separated until it is attached to the legs of the tower. Since it can be stored, it is easy to carry and handle.

When assembling the ascending tower prevention device, the passage prevention panel is placed on the arc-shaped rod of the overhanging shelf frame connected to the legs of the steel tower, and the upper panel of the panel is placed. At the intersection of the radial rod and the arcuate rod of the overhanging shelf frame that is on the lower side, one of the radial rods is laid over the engagement tool, and the hook-shaped locking portions at both ends are engaged. It can be bent by utilizing the elasticity of itself and locked to the other arcuate rod, so that both rods can be tightened and coupled by the elastic force of the engaging device itself, and the panel can be easily assembled to the shelf frame. Can be attached. Moreover, once assembled as described above, it cannot be easily detached, and therefore, a safe tower rising prevention device can be assembled and constructed by a projecting shelf.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the engaging device of the present invention will be described with reference to the drawings.

FIG. 1 is used for assembling a pass-through prevention panel (20), which will be described later, on the overhanging shelf frame (10) in the tower rise prevention device (B) according to the present invention shown in FIGS. FIG. 2 is a perspective view showing a state where the rods are joined together by the engaging tool, FIG. 2 is a plan view of the same, and FIG. 3 is a perspective view of the engaging tool.

The engagement tool (1) is mainly made of a metal wire rod having a required length, such as stainless spring steel, which has appropriate elasticity and rigidity, and both ends thereof are formed in a substantially U-shape toward opposite sides. Two bars that are folded and crossed (a)
It is formed as hook-shaped engaging portions (2) and (3) that can be engaged with one of the rods in (b). Normally, as shown in FIG. 3, the whole is bent in a substantially V shape so that the engaging operation can be easily performed in a state of straddling one of the rods (a) or (b).

The length and bending degree of the engaging tool (1) are
Depending on the diameters of the intersecting rods (a) and (b), for example, as shown in the figure, the engaging portions (2) and (3) at both ends are engaged with the other rods while straddling one rod (a). It is set in (b) so that it can be locked by utilizing the inherent elasticity. Further, it is desirable that the engaging elastic force of the engaging tool (1) be such that it can be locked to the rods (a) and (b) by using a jig such as a screwdriver. For example, when using the stainless spring steel as a material,
A wire having a diameter of about 1.5 to 3.0 mm is preferably used.

The engaging member (1) may be bent in a substantially V shape or may be bent in a substantially arc shape. Further, depending on the thickness and elastic force of the metal wire rod, the metal wire rod may be bent and locked at the time of joining the rod members. Further, it is possible to implement by using a narrow strip plate-shaped metal material, and forming locking portions capable of locking with a bar material at both ends. It can also be formed of other materials such as a synthetic resin material.

The engaging portions (2) and (3) at both ends are not only U-shaped as shown in FIG. 3 but also U-shaped or substantially U-shaped as shown in FIGS. 4 and 5. It is also possible to form the hook into a letter-letter shape so that it can be engaged with the bar (a) or (b).

This engaging tool (1) is for connecting two bar members (a) and (b) that intersect with each other at their intersecting portions, and in a state of straddling one bar member (a). The hook-shaped locking part (2) at one end is locked to the other bar (b), and the locking part (3) at the other end is locked as shown by the chain line in FIG.
Is locked to the bar (b) using a jig (c) such as a driver by utilizing the elasticity of the engaging tool (1) itself. As a result, with the central portion of the engaging member (1) straddling one of the rods (a), the elastic force of the engaging member (1) itself pulls the other rod (b). , Both bars can be elastically tightened and firmly joined.

FIG. 6 shows an ascending tower prevention device (B) provided on a leg (A1) of a steel tower according to the present invention.

This ascending tower preventing device (B) is provided with a substantially horizontal overhanging shelf which is outwardly extended at a proper height position of a leg (A1) made of, for example, angle steel of a steel tower. A required number of fan-shaped overhanging shelf frames (10) connected to A1) and overhanging, and these overhanging shelf frames (10)
And a pass-through prevention panel (20) attached to the.

Each overhanging shelf frame (10) has a required number of frame plates (12) radially extending from the central portion (11).
And a plurality of arcuate rods (13) arranged in a radial direction at a predetermined interval between the frame plates (12). In addition to the panel (20) for preventing passage, a required number of arc-shaped rods (2) are provided separately from the projecting shelf frame (10).
1) and a required number of radial rods (22) extending in the radial direction are combined and configured in a substantially fan-shaped mesh. FIG. 7 shows one of the projecting shelf frames (10) and the panel (20) in a partially separated state. Until it is attached to the legs (A1) of the steel tower, the overhanging shelf frame (10) and the passage prevention panel (20) can be individually separated, so that the distance between the bars forming the panel (20) can be increased. Even though it is small, it is lightweight and easy to handle during transportation.

When the ascending tower prevention device (B) is assembled and constructed, the panel (20) is placed on the arc-shaped bar (13) of the overhanging shelf frame (10) connected to the legs, and At the intersection of the radial rods (22) located at both fan-shaped ends of the upper panel (20) and the arc-shaped rods (13) of the lower overhanging shelf frame (10), the engaging tool (1) described above. By the above, both rods are joined in the same manner as described above.

That is, the engaging tool (1) is laid over the radial bar (22) corresponding to the bar (a) in FIG.
Attach the hook-shaped locking part (2) at one end to the bar (b), respectively.
To the arc-shaped bar (13), and further hooking the hook-shaped locking part (3) at the other end to the arc-shaped bar (13), so that both bars (13) (22) The panel (20) can be attached to the overhanging shelf frame (10) by connecting the.

Particularly, the engaging portions (2) at both ends of the engaging tool (1)
Since (3) has a hook shape on the opposite side,
The central portion (1a) of the engaging tool (1) has an upper radial rod (2
Since it is engaged across 1) diagonally, it can be firmly joined in a well-balanced manner. Moreover, once attached as described above, it cannot be easily removed. Therefore, the ascending tower prevention device (B) with a safe overhang shelf can be configured.

(23) is a radial rod (2) of the panel (20)
The locking means attached to 2) locks the inner circumference of the arc-shaped bar (13) of the overhanging shelf frame (10) in the above-mentioned mounted state to prevent the panel (20) from moving outward. It is provided to regulate. In particular, if this locking means (23) is formed by a U-shaped member or an L-shaped member, it will be locked on the lower side of the arc-shaped rod (13).

In the ascending tower prevention device (B) of the illustrated embodiment, as a support structure of the overhanging shelf frame (10), as shown in an enlarged view in FIG. 8, a section L is sandwiched by legs (A1). The supporting bases (14) and (14) are shaped to face each other, and they are fixed to the leg (A1) by tightening them with a fastener such as a bolt or a nut.
The upright support plates (15) are fixed to the upper surfaces of the above, and the projecting shelf frames (10) are fastened to and supported by the support plates (15). Then, as means for fastening the overhanging shelf frame (10) to the supporting plate (15), mounting holes (16) are provided at two positions of the supporting plate (15), and a central portion (11) of the overhanging shelf frame (20) is provided. ) In the mounting hole (1
6) A through hole (17) is provided at a position corresponding to 6), and a bolt (18) penetrating the through hole (17) is attached to the support plate (16).
Nut (1) attached to the inner surface of the mounting hole (17)
It is configured to be fastened by being screwed to 9).

Further, one of the through holes (17) of the overhang shelf frame (10) is notched downward so that the bolts (18) are formed.
By slightly loosening the bolt, the other bolt (18) can be rotated substantially vertically as shown in FIG. 9 about its axis, which allows the tower operator to have a sufficient space to pass through. ing.

[0028]

As described above, according to the assembling structure of the ascending tower preventing apparatus of the present invention, the fan-shaped overhanging shelf frame connected to the legs of the tower and the passage preventing panel are separately formed. However, the panel can be easily and surely coupled to the overhanging shelf frame by the engagement tool having the hook-shaped locking portions at both ends, and can be easily assembled, and once assembled. It is possible to assemble and configure a tower rise prevention device by a safe overhang shelf that does not easily come off.

In particular, since the panel for preventing passage is formed separately from the fan-shaped overhanging shelf frame, these can be individually separated until they are attached to the legs of the tower, so that handling such as transportation is easy. Moreover, it is possible to form a safe tower rise prevention device by reducing the interval between the rods that form the passage prevention panel.

[Brief description of drawings]

FIG. 1 is a perspective view showing a coupled state of rod members by an engaging tool used in an ascending tower preventing apparatus according to an embodiment of the present invention.

FIG. 2 is a plan view of the above.

FIG. 3 is a perspective view of an engagement tool.

FIG. 4 is a perspective view illustrating another engagement tool.

FIG. 5 is a perspective view illustrating still another engagement tool.

FIG. 6 is a plan view showing the overall structure of an embodiment of an ascending tower prevention device of the present invention.

FIG. 7 is a perspective view in which one overhanging shelf frame and a panel are partially separated.

FIG. 8 is a partial perspective view showing a support structure for an overhanging shelf frame.

FIG. 9 is a front view showing a state in which the overhanging shelf frame is vertically rotated to partially open it.

FIG. 10 is a schematic front view of a power transmission tower provided with an ascending tower prevention device.

[Explanation of symbols]

 (A) ...... Steel tower (B) ...... Ascending tower prevention device (a) ...... Bar (b) ...... Bar (1) ...... Engagement tool (2) ...... Locking part (3) ...... Locking part (1a) ... Central part (10) ... Overhanging shelf frame (13) ... Arc rod (20) ... Pass-through prevention panel (21) ... Arc rod (22) ... Radial rod

Claims (1)

[Scope of utility model registration request] 1. An abbreviation provided at a required height position of legs of a steel tower
It is a device for preventing ascending towers with horizontal overhanging shelves,
Connect a plurality of frame plates between the required number of frame plates that are connected and extend radially.
A plurality of fan-shaped overhanging shelves formed by bridging arc-shaped rods;
Separately from the overhanging shelf frame, an arc-shaped rod and a radial shape that extends in the radial direction
Formed in a fan-like net shape corresponding to each overhanging shelf frame with a rod.
It comes with a through-passage prevention panel,
The stop panel is placed on the arc-shaped bar of the overhanging shelf frame.
And the radial bar of the panel and the arc of the overhanging shelf frame
At the intersection with the rod, it has appropriate elasticity and both ends
Are used as hook-shaped locking parts on opposite sides.
Lock the both ends by straddling one of the locking tools
Connected to the overhanging shelf frame by locking the part to the other rod
An assembling structure of an ascending tower prevention device, characterized in that