JPS5842545Y2 - Frame for underground burial - Google Patents

Description

[Detailed description of the invention] This invention relates to a frame for underground installation that receives various underground valves such as water pipes and gas pipes, and is particularly placed and fixed on the lower frame, with its upper surface facing the ground surface. Concerning the improvement of Kamizusa.

As is well known, various types of frames buried underground consist of a cylindrical lower frame that receives various valves located underground, and an upper frame that is placed and fixed on this lower frame. After adjusting the vertical position (raising) of this upper frame with respect to the lower frame so that the upper part with the opening/closing lid faces the ground surface, the area around it is backfilled with earth and sand, concrete, asphalt, etc., and is fixed to the ground surface. being done.

By the way, in order to prevent this upper frame from lifting due to shocks caused by passing vehicles, the cylindrical outer part is tapered in diameter toward the bottom, or a flange is provided that projects outward from the outer part. There is.

However, although it is true that such conventional sills can prevent uplifting, if, for example, there is a deviation in the relative height between the sills and the ground surface due to road construction, it is necessary to dig up a large area around the sills. Therefore, the height of the upper ladder had to be adjusted.

The present invention is designed to be able to adjust the height of the upper azure without digging around the upper azure when there is a deviation in the height direction between the upper azure and the ground surface. The outer surface of the hollow annular upper cassava is tapered in diameter toward the bottom, and the lower surface is an inner flange that does not protrude outward from the outer surface. , is characterized in that the lower frame is fixed to this flange portion.

The invention will now be described with reference to the illustrated embodiments.

The upper frame 10 of the present invention is placed and fixed on a telescopic lower frame 1, and the lower frame 1 includes a base frame 2 with open upper and lower surfaces, a middle cylinder 3 standing upright on the base frame 2, and It consists of an outer cylinder 4 that is screwed into a middle cylinder 3, and an outer flange 5 is integrally provided at the upper end of the outer cylinder 4.

The upper frame 10 has an upper surface portion 11. It is formed into a hollow annular shape having an outer surface portion 12, a lower surface portion 13, and an inner surface portion 14, and the upper surface portion 11 has a large number of protrusions 16 within a shallow groove 15.

The protrusion 16 serves as a non-slippery, and the groove 15 can be filled with resin concrete, colored resin mortar, etc. to make it more noticeable.

Further, a slope 17 is formed on the outer circumference of the surface of the upper surface portion 11, and slopes gently downward toward the outer circumference.

As will be described in detail later, this slope 17 is formed by the roller ends, claws, etc. that are formed on the outer side surface 12 of the upper layer 10 when rolling asphalt or the like.
This is effective in preventing the concrete, asphalt, etc. on the outside of the upper frame from sinking and preventing the upper frame 10 from floating even if cracks or the like occur in the asphalt or concrete due to long-term vehicle traffic.

The outer surface portion 12 is formed into a tapered shape whose diameter decreases toward the bottom, and its lower end is connected to an inwardly flange-shaped lower surface portion 13 extending inward from the outer surface portion 12.

Since the lower surface portion 13 is formed in a quadrilateral shape with a diagonal length shorter than the diameter of the upper surface portion 11, the outer surface portion 12
The inclination is steepest in the middle part of the quadrilateral, and has an arc shape with a bulging central part, and has a gentle slope at the corners of the quadrilateral.

The lower surface portion 13 therefore does not protrude outward from the outer surface portion 12.

Further, a stopper 1 extending downward is provided on the outer periphery of this lower surface portion 13.
8 is provided in a protruding manner, and the outer flange 5 of the outer cylinder 4 is fitted into this stopper 18.

19 is a pole that integrates the outer flange 5 of the lower surface part 13)
-20 insertion hole.

Note that the lower surface portion 13 may have a polygonal shape other than a quadrangular shape or any other arbitrary shape.

The inner surface portion 14 hangs down from the inner peripheral edge of the upper surface portion 11 for supporting the opening/closing lid 21, and has a tapered shape whose diameter decreases toward the bottom. 22 are configured.

23 is a stepped portion formed midway in the height direction of the inner side surface portion 14;
Reference numeral 24 denotes a hinge locking piece having an insertion hole 26 for the hinge 25 of the lid.

Therefore, in the underground burial frame with the above configuration, underground valves such as gate valves and water utilization valves are located in the base frame 2 of the telescopic lower frame 1, and the outer 7 lunges 5 of the outer cylinder 4 are connected to the upper frame 10. 20 is inserted into the stopper 18 protruding from the lower surface 13 of the upper frame 10, and is tightened to the bag-like nut 20' provided on the lower surface of the outer flange 5. 1 top frame 10
will be placed and fixed.

The bolt 20 can be inserted into the insertion hole 19 from the opening 22 of the upper frame 10.

Since the vertical movement of the upper frame 10 can be adjusted by rotating the outer cylinder 4 with respect to the inner cylinder 3, it goes without saying that the upper surface part 11 can be made at the same height as the ground surface a during construction. After pouring earth and sand, concrete, asphalt, etc. around the frame, the height of the upper surface part 11 can be easily adjusted.

That is, the outer surface portion 12 of the upper Azusa 10 has a tapered shape whose diameter decreases toward the lower part, and the lower surface portion 13 is an inner flange portion that does not protrude outward from the outer surface portion 12. Therefore, when raising the road, the upper frame There are no protrusions that are an obstacle to raising and lowering the upper frame 10, unlike conventional products, so digging around the upper frame 10 is unnecessary or minimal.

Note that when concrete 1- or asphalt is poured up to the height of the upper surface part 11, the concrete, asphalt 1-
A part of the slope 17 covers the upper surface of the slope 17 to enhance the integrity with the upper frame 10.

Therefore, it is possible not only to prevent the concrete or asphalt placed on the outer periphery of the upper frame from sinking, but also to prevent the upper bezel from lifting up when a vehicle passes over the upper bezel.

The slope 17 also has the effect of reducing the possibility that the roller ends, claws, etc. will get caught on the upper sill 10 during compaction or the like.

Note that the upper frame of this proposal can be applied even when the lower frame is not a retractable frame.

Figure 3 shows an example of this, in which anchor bolts 8 are attached to outer flanges 7 at the upper end of a non-stretchable lower frame 6 made of concrete, etc.
The upper frame 10 is fixed onto the lower frame 6 by passing the bolts 8 through insertion holes 19 formed in the lower frame 13 of the upper frame 10.

The height of the upper frame 10 can be adjusted by inserting a height adjustment plate 9, an example of which is shown in FIG. 4, between the lower frame 6 and the upper frame 10.

Reference numeral 9a indicates a groove through which the bolt 8 is inserted, which is formed in the adjustment plate 9.

In summary, in this invention, the outer surface of the upper azure in the underground burial frame has a tapered shape whose diameter decreases toward the lower part, and the lower surface is an inward flange. After that, when adjusting the height of the upper casing, there is no part that obstructs the vertical movement of the upper casing, and therefore the excavation range around the upper frame is minimized to facilitate construction. Can be done.

Furthermore, by forming a slope that slopes downward toward the outer periphery on the outer periphery of the upper surface, concrete or asphalt placed on the slope can integrate the ground and the upper cassava.

[Brief explanation of the drawing]

The drawings all show embodiments of the present invention, and Fig. 1 is a plan view of the upper Azusa, with one half seen from above and the other half seen from below, and Fig. 2 a cross section taken along line II-II in Fig. 1. 3 are sectional views similar to FIG. 2 showing another embodiment of the present invention, and FIG. 4 is a perspective view of the height adjusting plate. 1.6...Lower frame, 10...Upper frame, 1
1... Upper surface part, 12... Outer surface part, 1
3...Lower surface part, 14...Inner surface part, 1
7... Slope, 21... Open/close lid.

Claims (1)

[Scope of utility model registration request] A lower frame that receives various underground valves for water, gas, etc.
In the frame body, which is placed and fixed on the upper part of the lower frame and is composed of an upper part having an opening/closing lid, the upper frame is integrated with the upper surface facing the ground, the outer surface, the lower surface, and the inner surface for the opening/closing lid. The outer surface part has a tapered shape whose diameter decreases from the top to the bottom, and the lower surface part is an inner flange part that does not protrude outward from the outer surface part. A frame for underground burial, characterized in that the lower frame is fixed to the inner flange.