JP3086190B2 - Valve housing - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a valve housing, and more particularly to a valve housing which can easily be adjusted in height and does not require excavation work on a road surface when adjusting the height.

[0002]

2. Description of the Related Art For example, a gate valve for temporarily stopping the flow of tap water is provided in the middle of a water pipe laid underground. Opening and closing of the gate valve is performed by inserting an open / close tool into a valve housing 1 vertically embedded on the gate valve and operating the open / close tool from the ground.

As shown in FIG. 5, a valve housing 1 is vertically buried above a partition valve in the ground, an outer cylinder 2 having an inner surface formed with a female screw 2A, and inserted into the outer cylinder 2. External thread 3 on outer surface
A is formed of an inner cylinder 3 formed with A and a closing lid 4 for closing an upper end opening of the inner cylinder 3. The inner cylinder 3 and the outer cylinder 2 are screwed together by a female screw 2A and a male screw 3A. ing.

[0004] The valve housing 1 constructed as described above is buried vertically on the gate valve so that the upper surface of the closing lid 4 coincides with the road surface 5. In some cases, the valve housing 1 is buried under the road surface 5 or the upper part of the valve housing 1 projects above the road surface 5 due to land subsidence or the like.

[0005] When a step is formed between the valve housing 1 and the road surface 5 as described above, there is a possibility that noise or vibration may be generated by passing the vehicle. Therefore, when a step occurs between the valve housing 1 and the road surface 5, it is essential to adjust the height of the valve housing 1 so that the step is eliminated.

Conventionally, the height of the valve housing 1 is adjusted by excavating a road surface 5 around the valve housing 1 and screwing the inner cylinder 3 into the outer cylinder 2.
Was performed by rotating.

[0007]

However, the above-mentioned conventional one-valve housing has the following problems.
In order to rotate the inner cylinder 3, the road surface 5 around the valve housing 1
Need to dig up. In addition, after the height adjustment of the valve housing 1 is completed, it is necessary to backfill the excavated portion and re-pave. Thus, adjusting the height of the valve housing 1 requires a great deal of time and cost. After a long time, the inner cylinder 3
And the outer cylinder 2 adhered to each other due to rust, and the inner cylinder 3 could not be easily turned.

Accordingly, it is an object of the present invention to provide a valve casing which can easily perform height adjustment and does not require excavation work on a road surface during height adjustment.

[0009]

According to the first aspect of the present invention,
A valve housing buried in the ground, comprising an outer cylinder fixed vertically on the gate valve, an inner cylinder fitted in the outer cylinder, and a closing lid for closing an upper end opening of the inner cylinder. At
The inner cylinder has a jack bolt vertically screwed to the inner cylinder in the inner cylinder, and a lower end of the jack bolt abuts on a bottom portion of the outer cylinder, thus rotating the jack bolt. Has a road surface turning prevention metal fitting which presses a road surface around the inner cylinder when the inner cylinder rises and lowers with respect to the outer cylinder and prevents the road surface from being turned up; The bolt has a length protruding from the inner cylinder, and the jack bolt is characterized in that it is hinged with the road surface turning prevention metal fitting.

According to a second aspect of the present invention, a rust scraping blade for scraping rust generated on an outer peripheral surface of the inner cylinder when the inner cylinder is raised and lowered is formed on an inner peripheral surface of the outer cylinder. It is characterized by the following.

According to a third aspect of the present invention, a rattling preventing weight for preventing rattling of the opening / closing lid due to vibration of a road surface or the like is swingably suspended at the center of the lower surface of the opening / closing lid. Is characterized by the fact that

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an embodiment of the valve housing of the present invention will be described with reference to the drawings. FIG. 1 is a sectional view showing a valve housing of the present invention buried underground, and FIG.
FIG. 3 is a cross-sectional view showing another valve case of the present invention buried in the ground, and FIG. 4 is a plan view showing a road surface turning prevention metal fitting in another valve case of the present invention. FIG.

1 to 4, reference numeral 6 denotes a valve housing of the present invention, 7 denotes an outer cylinder which is vertically fixed on a gate valve (not shown), and 8 denotes an outer cylinder 7 fitted into the outer cylinder. The inner cylinder 9 is a closing lid for closing the upper end opening of the inner cylinder 8, and the 10 is a plurality of jack bolts that vertically hinge with the bottom 8 </ b> A of the inner cylinder 8 in the inner cylinder 8. The lower end of the jack bolt 10 is in contact with a concave portion 7B formed on the bottom 7A of the outer cylinder 7.

With such a configuration, for example,
Since the inner cylinder 8 is buried under the road surface 5 due to the resurfacing of the road surface 5 or the like, when it is necessary to raise the inner cylinder 8 to the height of the resurfacing road surface, the closing lid 9 is opened and the jack bolt rotating tool ( (Not shown) is inserted into the inner cylinder 8, and the jack bolt 10 is rotated. The jack bolt 10 is
And the lower end of the jack bolt 10 is
When the jack bolt 10 is rotated, the inner cylinder 8 rises vertically with respect to the outer cylinder 7 and the inner cylinder 8 is in close contact with the roadbed.
There is a possibility that the road surface may be turned up with the rise of the inner cylinder. As shown in FIG. 3 and FIG.
It is preferable to provide a road surface turning prevention metal fitting 12 that presses the road surface around the inner cylinder 8 when the vehicle rises. Road surface turning prevention bracket 12
Is a flange 12A which is brought into contact with a road surface around the inner cylinder 8.
And a nut 12B with which the jack bolt 10 is fitted. In this case, the pitches of the screws at which the jack bolts 10 formed on the inner cylinder 8 and the road surface turning metal fitting 12 hinge are equal. In addition, jack bolt 10
Has a length protruding from the inner cylinder 8.

According to the road surface turning prevention metal fitting 12, since the flange 12A presses the road surface around the inner cylinder 8 when the inner cylinder 8 is raised, it is possible to prevent the road surface from being turned up due to the rising of the inner cylinder 8. Can be.

If the rust scraping blade 7C is formed on the upper inner peripheral surface of the outer cylinder 7, the rust generated on the outer peripheral surface of the inner cylinder 8 when the inner cylinder 8 moves up and down can be scraped off. Therefore, the inner cylinder 8 can be more smoothly moved up and down. Rust scraping blade 7
C is formed at intervals in the circumferential direction of the outer cylinder 7,
Between the rust scraping blades 7C, rust discharging grooves 7D for discharging the rust scraped are formed along the axial direction of the outer cylinder 7.

If the weight 11 is suspended at the center of the lower surface of the closing lid 9 so as to swing freely, the road surface 5 vibrates due to the passage of a car or the like, whereby the closing lid 9 rattles or rises and comes off. There is no danger of it.

[0018]

As described above, the present invention has the following useful effects. An outer cylinder fixed vertically on the gate valve, an inner cylinder fitted into the outer cylinder, and a closing lid for closing an upper end opening of the inner cylinder, in a valve housing buried in the ground, By providing a jack bolt whose lower end abuts the outer cylinder and hinges with the inner cylinder, by simply rotating the jack bolt,
The inner cylinder can be raised and lowered with respect to the outer cylinder. Therefore,
Unlike the conventional valve case, it is not necessary to dig a road surface around the valve case, and by providing a road surface turning prevention metal fitting, it is possible to prevent the road surface from being turned up due to the rise of the inner cylinder. . By forming a rust scraping blade on the inner peripheral surface of the outer cylinder, rust generated on the outer peripheral surface of the inner cylinder can be scraped off when the inner cylinder is raised and lowered, so that the inner cylinder can be raised and lowered more smoothly. Can be. If the weight is hung on the lower surface of the closing lid so as to be swingable, the road surface vibrates due to the passage of a vehicle or the like, and thereby, there is no possibility that the closing lid is rattled or floats and comes off.

[Brief description of the drawings]

FIG. 1 is a sectional view showing a valve housing of the present invention buried underground.

FIG. 2 is an end view taken along line AA of FIG. 1;

FIG. 3 is a sectional view showing another valve housing of the present invention buried underground.

FIG. 4 is a plan view showing a road surface turning prevention metal fitting in another valve housing of the present invention.

FIG. 5 is a partial sectional view showing a conventional valve housing.

[Explanation of symbols]

 1: conventional valve housing 2: outer cylinder 2A: female screw 3: inner cylinder 3A: male screw 4: closing lid 5: road surface 6: valve housing of the present invention 7: outer cylinder 7A: bottom 7B: recess 7C: rust scraping Blade 7D: Rust discharging groove 8: Inner cylinder 8A: Bottom 9: Closure lid 10: Jack bolt 11: Weight for preventing rattling 12: Road surface turning prevention metal fitting 12A: Flange 12B: Nut

Claims (3)

(57) [Claims] An outer cylinder vertically fixed on the gate valve;
An inner cylinder fitted into the outer cylinder, and a closing lid for closing an upper end opening of the inner cylinder, in a valve housing buried in the ground, in the inner cylinder, perpendicular to the inner cylinder. It has a jack bolt to be screwed, the lower end of the jack bolt abuts on the bottom of the outer cylinder, and thus, by rotating the jack bolt, the inner cylinder moves up and down with respect to the outer cylinder, and When the inner cylinder rises, a road surface turning prevention metal fitting for pressing the road surface around the inner cylinder to prevent the road surface from turning is provided, and the jack bolt has a length protruding from the inner cylinder. Wherein the jack bolt is hinged to the road surface turning prevention metal fitting. 2. A rust-scraping blade for scraping rust generated on an outer peripheral surface of the inner cylinder when the inner cylinder is moved up and down is formed on an inner peripheral surface of the outer cylinder. Item 1
The described valve housing. 3. A rattling preventing weight for preventing rattling of the opening / closing lid due to vibration of a road surface or the like is swingably suspended at the center of the lower surface of the opening / closing lid. The valve housing according to any one of claims 1 to 2,