JPS5930016Y2 - Traffic signal sensor support tube connection device - Google Patents

Description

[Detailed explanation of the idea] This invention relates to a connection device for a traffic signal sensor support tube.

When attaching the base of the tube 2 to the utility pole 1 using a utility pole band 3 or the like so that it protrudes horizontally, and attaching the traffic signal sensor 4 to the tip, the thin tube 2a is generally connected to the thick tube 2 in a flexible manner. be.

The object of this invention is to obtain a device that connects the connecting device simply and reliably and firmly.

That is, as shown in the figure, a split cylinder 5 with a conical outer surface and a split groove 6 is provided.
is fitted into the thin tube 2a, and a nut 10 is provided by passing the hook bolts 9, 9 through the holes 8 of the diametrically symmetrical projecting ears 7, 7 provided on the split tube 5.

Hook pole l-9 is inserted into the hole 11 provided diametrically symmetrically in the thick pipe 2.
When the nut 10 is tightened, the split tube 5 is pushed into the mouth 21) of the thick tube 2, and the diameter of the split tube 5 is reduced by the action of its conical outer surface, tightly tightening the thin tube 2a and connecting the tubes 2 and 2a. do.

Since the present invention has the above-mentioned configuration, when the necks 1 to 10 are loosened and the split tube 5 is pulled out, the split tube 5 opens elastically and releases the tightening of the thin tube 2a.

The hook bolt 9 needs to be pulled out only a small amount, so the hook bolt 9 is inserted into the hole 1.
1, that is, the split tube 5 can remain attached to the mouth of the thick pipe 2.

In this state, the thin tube 2a is moved back and forth to determine the position of the sensor 4 at its tip.

Therefore, even if the inner diameter of the thick tube 2 and the outer diameter of the thin tube 2a are set so that there is a sufficient gap to prevent them from rubbing during the above-mentioned back-and-forth movement, the thin tube 2a is moved back and forth using the split tube 5 as a guide, so that the thin tube does not move. Work is carried out smoothly without any communication.

Further, during transportation, by pushing the thin tube 2a into the thick tube and holding the nut 10 with the split tube 5, there is no risk of the thin tube accidentally popping out.

Furthermore, the split tube 5 and the hook bolt 9 can remain attached to the thick pipe 2 at all times as described above, but when disassembling it for stock, etc., simply loosen the nut 10 greatly and remove the hook bolt 9 from the hole 11. This has advantages such as easy disassembly and assembly of the thick pipe 2.

Details of the illustrated embodiment are as follows.

The liner 12 is fixed to the outer surface of the inner end of the thin tube 2a, and the push screws 13 are screwed into the thick tube 2 or the nut 14 welded to the thick tube 2 in diametrically symmetrical directions, and the thin tube 2a is held down by both 12j3. It is possible to support 2a straight.

15. 16 is a hanging metal fitting, 17 is a hanging rod, 18 is a turnbuckle, and 19 is a steadying metal fitting attached horizontally to the utility pole below the metal fitting 3 on the back of the utility pole with respect to the thick pipe 2. The steady rest rods 20 are stretched horizontally between the right and left metal fittings 16 in a ■ shape, and together with the hanging rods 17 at the -L section, the thick pipe 2
constitutes a steady rest.

[Brief explanation of drawings]

Fig. 1 is a side view of the sensor support tube, Fig. 2 is a partially cutaway front view of the proposed connection device, Fig. 3 is a cross-sectional view taken along the line 3-3 in Fig. 2,
Figure 4 is a front view of the split tube. 1 is a utility pole, 2 is a large tube, 2a is a thin tube, 4 is a sensor, 5 is a split tube, 7 is a protruding ear, 9 is a hook bolt, 10 is a oak 1-1
11 has a hole for the hook.

Claims (1)

[Scope of utility model registration request] Insert the thin tube with the sensor attached into the thick tube with the circuit board fixed to the utility pole, insert the conical outer surface of the split tube fitted into the thin tube into the mouth of the large tube, and insert the protruding ear holes provided diametrically symmetrically in the split tube. A connection device for a traffic signal sensor support tube, in which a hook bolt passed through the hole is hooked into a hole in the large tube, and then tightened with a nut.