JPH082192Y2 - Underground movable fire hydrant - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to improvement of digestive taps, especially underground digestive taps.

[Conventional technology]

Generally, two types of digestion plugs used for digestion work and drainage work in drainage pipes are roughly classified into above-ground type and underground type, and are usually used for digestion activities near road intersections and branch points. It is installed in a convenient place. In recent years, underground fire-stops have become the mainstream in areas other than the regions where a large amount of snow is expected due to the obstacles to traffic and the beauty of the city.

However, although this underground fire hydrant is usually hidden underground, if the road surface becomes high due to pavement etc., the connection with the hose will be deeper than the ground,
When performing a digestive activity, the work of connecting the hose takes time and labor, which is not suitable for emergency situations.

[Purpose of device]

The present invention was made by paying attention to the above-mentioned problems of the conventional technology. By solving these problems, a part of the water pipe constituting the digestive tap is made a movable pipe that can be moved up and down. It is an object of the present invention to provide an underground movable digestive tap in which a connection portion with a hose is provided at the upper end opening of the movable pipe, and the installation height position of the movable pipe can be adjusted according to the condition of the road surface. .

[Means for solving the problem]

In order to achieve this object, the underground movable digestion plug according to the present invention is provided with a movable pipe having an upper end protruding from the fixed pipe connected to a water distribution pipe, and a protruding portion of the movable pipe. Is equipped with a drop stopper, and the height position adjusting collar of the movable tube composed of a pair of arc-shaped members is detachably interposed on the drop stopper.

[Action]

With the above configuration, when the road surface becomes high due to painting or the like, the movable tube may be pulled up and an adjustment collar having a number or height suitable for the purpose may be attached or added. It is not necessary to remove the parts such as the connection part with the hose attached to the upper end opening. On the contrary, even if the road surface becomes low, the adjusting collar can be easily removed without the above-mentioned trouble.

〔Example〕

Next, an embodiment of the present invention will be described in detail with reference to FIGS.

FIG. 1 is a longitudinal sectional view of an underground movable digestive tap embodying the present invention, FIG. 2 is a sectional view taken along the line AA in FIG. 1, and FIG. 3 is a sectional view in FIG. It is a sectional view taken along the line B.

In these figures, 1 is a water pipe (not shown) and a curved pipe 2
It is a fixed tube connected through. A guide ridge 3 having a rectangular cross-section along the axial direction is integrally formed at a substantially central position on the inner peripheral surface of the fixed tube 1, and the guide ridge 3 and the guide ridge 3 have an angular position of about 90 degrees. A locking projection 4 having substantially the same width as the guide projection 3 is also integrally formed, and the upper surface of the locking projection 4 is located above the upper surface of the guide projection 3 by about 10 mm. Further, a lower flange 5 is attached around the lower end opening of the fixed pipe 1, while an upper flange 7 having a bush 6 fitted in the central portion on the upper end opening.
Are arranged, and the upper flange 7 and the lower flange 5 are
A protective tube 8 is attached between the end edges of the structure to protect the mechanism from earth pressure and the like.

Further, reference numeral 9 in the drawing denotes a movable pipe, which is disposed in the fixed pipe 1 in a state of being fitted to the bush 6 described above, and the upper end portion of which is projected above the upper flange 7. There is. A guide plate 10 whose outer peripheral surface is in sliding contact with the inner peripheral surface of the fixed tube 1 is fixed around the lower end opening of the movable tube 9, and the guide groove 11 corresponding to the above-mentioned guide ridge 3 is fixed to the guide plate 10. Also, an escape groove 12 is formed to avoid collision with the locking projection 4 when the movable tube 9 is pulled up.
Further, a drop stopper 13 is fitted to a portion of the movable pipe 9 which is projected upward from the upper flange 7 through a U packing 14, and a hose is provided around the upper end opening of the movable pipe 9. It becomes a connection part and a holder of the base described later.
15 is fitted and the holder 15 is fitted with ring bolts 16 and 16 which serve as knobs at the time of work. Adjusting collars 17, 17 for adjusting the height position of the movable tube 9 are interposed between the holder 15 and the drop stopper 13, and the adjusting collars 17 are provided at both ends with tightening pieces as shown in FIG. The pair of arc-shaped members 17a and 17a are integrally formed, and the fastening pieces 17a and 17a are fixed to the outer peripheral surface of the movable tube 9 by bolting or can be removed.

Further, a step recess 15a is formed on the upper surface of the holder 15 described above, and a base 18 is fitted and fixed in the step recess 15a. The base 18 has a receiving portion 18a formed on the inner surface, and the base 19 is fitted to the receiving portion 18a with the lower end edge abutting.
A retaining ring 20 is fitted on the peripheral surface of the mouthpiece 19, and the upper opening is normally closed by a lid 21.

The underground movable digestive tap according to this embodiment is configured as described above. Here, the operation will be explained. When the lid on the ground surface (not shown) is opened and the ring bolts 16 and 16 are lifted until the mouthpiece 19 comes out to the ground, the movable tube 9 moves along with the movement. Move upwards. In this movement, in addition to the outer peripheral surface of the guide plate 10 slidingly contacting the inner peripheral surface of the fixed tube 1, the combination of the guide ridge 3 and the guide groove 11 provides a linear movement even if the pulling force is slightly offset. Will be things. At that time, the movable tube 9 is pulled up by the escape groove 12 until the guide groove 11 is disengaged from the guide protrusion 3, and the guide plate 10
The upper surface of the bush contacts the lower end surface of the bush 6 and is stopped. When the movable tube 9 is interlocked by rotating the position of the ring bolts 16 and 16 by 90 degrees after this stop, the lower surface of the guide plate 10 rides on the upper end surface of the guide protrusion 3 and the movable tube 9 is prevented from falling by its own weight. Thus, the state in which the base 19 is projected to the ground is maintained. At the same time, the guide groove 11 engages with the locking projection 4, so that the rotation of the movable tube 9 is suppressed.

Further, by interposing the adjusting collars 17 and 17 between the drop stopper 13 and the holder 15, even if the road surface becomes high due to pavement or the like, the adjusting collars 17 and 17 are divided into a pair of arc-shaped members. Therefore, it is possible to add components such as the base 19 and holder 15 on the movable tube 9 without the need to remove them. Conversely, when the road surface becomes low, it can be removed and the height position can be adjusted. The work is extremely easy.

[Effect of device]

As described above, according to the underground movable fire hydrant according to the present invention, even if the height of the road surface changes due to painting or the like, it is not necessary to remove the parts such as the connection part with the hose and its holder. In addition, the adjusting collar can be easily attached and detached, and the height position of the movable pipe, that is, the height position of the connection portion with the hose can be freely adjusted in conformity with the height of the road surface.

[Brief description of drawings]

FIG. 1 is a longitudinal sectional view of an underground movable digestive tap embodying the present invention, FIG. 2 is a sectional view taken along the line AA in FIG. 1, and FIG. 3 is a sectional view taken along the line BB. FIG. 1 …… Fixed tube, 3 …… Guide ridge, 4 …… Locking projection 6 …… Bush, 90 …… Movable tube, 10 …… Guide plate 11 …… Guide groove, 12 …… Escape groove 13 …… Drop Stopper, 15 …… Holder 16 …… Ring bolt, 17 …… Adjust collar 19 …… Clasp

Claims (1)

[Scope of utility model registration request] 1. A fixed pipe connected to a drain pipe is provided with a movable pipe having an upper end protruding from the fixed pipe, and a drop stopper is provided on a protruding portion of the movable pipe, and a pair of stoppers are provided on the drop stopper. An underground movable digestive tap, characterized in that a height position adjusting collar of the movable tube made of the arc-shaped member is detachably interposed.