JPH01120732U - - Google Patents

Description

[Brief explanation of the drawing]

Figures 1 to 4 show an embodiment of the present invention; Figure 1 is a front view of the blocking rod attached to the L-shaped frame member of a steel tower; Figure 2a is an enlarged sectional view of the fixing lock; 2
Figure b is an exploded sectional view of Figure 2a, Figure 3a is an enlarged front view of one of the fixing fittings, Figure 3b is a side view of Figure 3a seen from the left side, Figure 4a is FIG. 4b is a side view of FIG. 4a seen from the right side; FIG. 5 is a side view showing another embodiment of the other fixture; FIG. 6 is a side view of FIG. FIG. 7 is a schematic perspective view showing an attached state of a conventional example, and FIG. 7 is a front view showing another conventional example. 1...High voltage transmission tower, 2...Power line support arm, 3...Danger prevention cutoff bar, 4...Large diameter pipe,
5...Small diameter pipe, 6...Lock for fixing the telescopic length at a desired position, 6a, 6b...Fixing lock member, 7, 8...Fixing metal fitting, 9...One touch type fixing metal fitting, 10... ...Large diameter ring for fitting the tip of a large diameter pipe, 11...Small diameter ring for penetrating a small diameter pipe, 12...Step part, 13...Cylinder body, 14...Male cylinder for fitting, 15...Male cylinder for fitting A large diameter female ring that accepts the 17... step, 18... cylindrical body, 19... screw.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A safety cut-off rod installed on the power transmission line support arm of a high-voltage transmission tower, which is expanded and contracted by the axial fitting and sliding movement of a large-diameter pipe and a small-diameter pipe. A lock is formed to be freely formed and to fix the extendable length at a desired position, and a lock is provided spanning the tip of the large-diameter pipe and a portion near the fitting part of the small-diameter pipe; The rear end of the large-diameter pipe of the above-mentioned shutoff rod is fixed to a fixing bracket attached to one of the two opposing frame members of the arm, so that the shutoff rod can rotate horizontally and vertically about the fixing bracket. A high-voltage power transmission tower, characterized in that it is formed to be freely rotatable in the vertical direction, and is further provided with a one-touch type fixing fitting for fixing the tip of the small-diameter pipe to a fixing fitting attached to the other of the frame members. Shutoff rod for preventing danger. (2) The large diameter ring for fitting the tip of the large diameter pipe and the small diameter ring for penetrating the small diameter pipe are connected to each other via a step, and the outer circumferential diameter of the small diameter ring side of the cylinder body is reduced to form a male cylinder for fitting. and the small diameter ring for penetrating the pipe is formed into an eccentric ring to obtain a fixed locking member, while the large diameter female ring for receiving the male fitting cylinder and the small diameter ring for penetrating the small diameter pipe are formed in a stepped portion. The small diameter ring for penetration is formed into an eccentric ring to obtain a fixed lock member, and when both fixed lock members are fitted and integrated, both small diameter rings are formed. Claim 1, wherein the small-diameter pipe is inserted into the ring when it is in a perfect circle state, and then one of the fixed lock members is rotated and crimped onto the small-diameter pipe, thereby fixing both fixed lock members together. Hazard prevention cut-off rod for high-voltage power transmission line towers.