JPH0128109Y2 - - Google Patents

Description

[Detailed description of the invention] A. Field of industrial application The present invention relates to a protective box installed around an agricultural hydrant that supplies water to rice paddies and fields.

B. Conventional technology Conventionally, a protection box made of concrete or asbestos is buried shallowly in the ground around agricultural water hydrants, and the water discharged from the hydrant is allowed to stagnate in the protection box. Water is supplied to rice fields and fields by overflowing. The function of this protection box is as follows.

a. Prevent fields from being dug up by the torrent of water released from water hydrants, thereby eliminating damage to rice crops, etc.

b. Protect standpipes and water taps leading from the water mains from external impact, and prevent the intrusion of garbage from outside.

c. Mark the location of the water tap.

Conventionally, a protective box having the above-mentioned function is made by digging a hole around the riser pipe 7 and the water tap 8, compacting the bottom with gravel and pouring concrete, as shown in Figure 6. There is the on-site installation type, in which a hole is made and concrete is poured in, and the type in which concrete is poured at the bottom of the hole and a ready-made concrete or asbestos protection box is installed on top of it, as shown in Figure 7. etc. are known.

C. Problems that the invention aims to solve In both of the above two types of protection boxes, since concrete must be poured, a curing period is required for the concrete, and the installation of the protection box or water supply must be started. It takes time to do so. In particular, the former type requires more man-hours than the latter type because it is constructed on-site. In the case of the former type, the protective box is generally rectangular;
If damaged by an external attack, dismantling and repair is impossible. On the other hand, in the case of the latter type, the protective box is generally circular, but the outer peripheral side surface is parallel to the axis of the box, so it takes time to disassemble and repair.

Furthermore, since the bottom of both types is poured with concrete, the riser pipe leading from the water main is fixed with concrete, so in the unlikely event that a lateral load or a vertical load due to ground subsidence is applied to the protection box. If this occurs, the impact on the standpipe can be significant, causing damage, and even affecting the water mains.

In addition, these conventional protection boxes for water faucets include
Since there is only one water outlet on the top end, water can only be supplied to one paddy field in one direction, for example, and if water is to be supplied to an adjacent paddy field, a water tap must be installed in the adjacent paddy field. Therefore, extra piping work will need to be carried out. Furthermore, a partition plate is used at the water outlet, but this partition plate only functions to open or shut off the water outlet, and therefore, little attention is paid to regulating the amount of water supplied. Maintaining a fixed amount of water in paddy fields, conserving water, regulating water temperature, and preventing runoff of removed fertilizers are being ignored.

In addition, conventional protective boxes for water faucets have low impact strength and bending strength, so they are easily damaged by external impact.Furthermore, the latter type of ready-made protective boxes require a considerable amount of space during transportation, loading, and storage. In particular, it is not possible to transport large quantities during transportation, which increases transportation costs.

The present invention is an attempt to solve the problems of the conventional technology as mentioned above.It is light in weight, can be constructed easily and in a short time, can be easily dismantled and repaired, and can reduce the load on the riser pipe. It satisfies conditions such as minimizing the impact, being able to supply water to both rice paddies or fields at the same time, being able to supply managed water if necessary, having high impact strength, and not taking up much space during transportation, loading, or storage. The purpose of the present invention is to provide a protective box for water faucets that contributes to cost reduction.

D. Means for Solving the Problems As a means for solving the above problems, the present invention provides a water faucet protection box that is roughly divided into two parts, each having a diameter that is tapered upward. It has a combination structure of a cylindrical main body having at least two water ports at the upper end and a pair of split ring-shaped bottom plates installed at the bottom end of this main body, and these main bodies and bottom plates are made of alkali-resistant fiber. It is constructed of reinforced concrete (hereinafter referred to as GRC) material.

E. Function To construct the protective box for a water faucet of the present invention, the pre-formed main body and bottom plate are transported to the construction site, and the two split bottom plates are each installed around the riser pipe of the water faucet. The main body is placed on this bottom plate to form a protective box. Water released from the hydrant stagnates in this protective box, then overflows from the water outlet and is supplied to the rice paddies and fields. In this case, since there are at least two water outlets, if a water tap is installed at the boundary between adjacent rice fields, water can be supplied to both rice fields simultaneously through each water outlet. Since the riser pipe of the hydrant and the bottom plate of the protection box are separated, even if the protection box is subjected to a lateral load or a vertical load due to ground subsidence, it will not have a direct effect on the riser pipe. Also a protective box
Because it is made of GRC, the bending strength is 2 to 4 times higher than that of unreinforced mortar, and the impact strength is 8 to 8.
On the other hand, compared to asbestos, the bending strength is almost the same, but the impact strength is 3 to 4 times higher, so the thickness of the protective box can be reduced to about 1/2 of that of conventional ones, and the weight is lower. significantly reduced. Furthermore, the main body functions to reduce the effects of external impact.

Furthermore, since the diameter of the main body is tapered upward, it is possible to fit the main bodies together, which saves space during storage and transport, and makes it easy to remove from the ground when disassembling and repairing. do.

F. Embodiments An embodiment of the present invention will be described with reference to the drawings.

In Figures 1 to 5, 1 is the main body of the water faucet protection box, 2 is the upper lid, and 3 is the upper bottom plate, all of which are made of concrete (GRC) reinforced with alkali-resistant glass fibers. The main body 1 is buried at a depth of about 20 cm underground and installed around a riser pipe 7 of a water supply pipe and a water tap 8. This main body 1 has a cylindrical shape, and its diameter is tapered upward. The size of the taper is not particularly limited, but it is preferably set to 1/5 to 1/6 or less. The inner diameter, thickness, height, etc. of the main body 1 are not particularly limited, as they can be changed depending on the installation location of the hydrant, the height of the hydrant, etc., but usually the upper end diameter is 300 to 500 mmφ. A material having a wall thickness of 10 to 20 mm and a height of approximately 500 to 600 mm is preferably used. Further, at the upper end of the main body 1, two water ports 4, 4 are provided which serve as outlets for the stagnant water supply inside the protection box. The installation locations of the water ports 4, 4 can be appropriately selected depending on the situation of the rice paddies or fields to be watered, and are not particularly limited, but it is common and preferable to install them diametrically opposite each other. A partition plate 6 is fitted into the water ports 4, 4 to turn the water supply on and off. Therefore, in order to attach the partition plate 6, it is preferable to make the outer circumferential side of the water spout slightly thicker and to reinforce it. This water outlet 4,
At the lower end of 4, management water ports 5, 5 are provided which are connected to the lower end and are further cut out downwardly. The locations of the management water ports 5, 5 may be anywhere as long as they are at the lower ends of the water ports 4, 4, and are not particularly limited. Further, the cross-sectional shape of the water ports 5, 5 is not particularly limited, and may be semicircular or square on the triangular ground shown.

Note that the shape of the main body 1 is not limited to a circle, and as long as it is cylindrical, it may be elliptical, square, polygonal, etc., and can be selected depending on the circumstances of the installation location.

As shown in the figure, the lid 2 can be attached to the main body 1 by providing a flange 1a on the inner circumference of the upper end of the main body 1 and fitting the lid 2 into the flange 1a.
There is a method of providing a frame portion around the circumferential portion of the frame portion and covering the main body 1, but there is no particular limitation.

The bottom plate 3 is made up of a pair of flat plates 3, 3 in the shape of a ring divided into two parts. Each bottom plate 3 is provided with a cutout portion along the outer periphery of the riser pipe 7 of the water supply piping on the inside thereof, and the inner diameter of this cutout portion is set to be slightly larger than the outer diameter of the riser pipe 7. Further, the outer diameter of the bottom plate 3 is set larger than the outer diameter of the main body 1. When installing the bottom plates 3, 3 around the riser pipe 7, if water is allowed to stagnate in the gap between the inner circumference of the bottom plate 3 and the riser pipe 7, water will enter through the gap and cause the bottom plate to stagnate. In order to prevent this, there is a danger that the bottom plates 3 and 3 may be dug down, and the bottom plates 3 and 3 may shift laterally for some reason and come into contact with the riser pipe 7.
In order to prevent damage to the parts, it is preferable to fit an elastic ring (not shown) made of rubber or synthetic resin. The bottom plates 3, 3 serve to stably arrange the main body 1, and eliminate the need for concrete pouring at the bottom as in the past.

G. Effects of the invention The present invention has the above-mentioned configuration and operation, thereby achieving the following effects.

a. There is no need to pour concrete at the bottom where the water faucet protection box will be installed, and the protection box can be installed at any time and water supply can be started immediately.

b The main body has a taper, so it can be easily pulled out of the ground for disassembly and repair.
Repairs or replacements can be done in a short time. Additionally, since they have a taper, they can be fitted and stacked, and do not require a large amount of space during transportation or storage, reducing transportation costs by about half compared to conventional products.

c Since at least two water ports are provided on the upper end of the main unit, water can be supplied in different directions, so one water tap can be connected to two adjacent rice fields, etc.
Water can be supplied from the stand at the same time, and there is no need for piping work to install another water tap, which is required in the conventional system, resulting in cost savings.

d If the riser pipe led from the water supply main and the ring-shaped bottom plate are installed in a non-contact state, for example via an elastic ring, the protection box may be subjected to lateral loads and vertical loads due to ground subsidence. Even in the past, the impact on the riser pipe is minimized and damage to the riser pipe is prevented.

e Since the entire structure is made of GRC, it is light in weight, making it easy to transport and install, improving work efficiency.

f) Due to its high mechanical strength, especially impact strength, damage during transportation and construction is significantly reduced, and even after installation, it is well protected from external impact and can be used stably for a long time. Even in the unlikely event of damage, the entire protective box will never be split.

g. Cost reductions can be achieved in various aspects such as construction, transportation, storage, etc., and overall cost reductions are significantly greater than conventional products.

h As shown in the example, when a water outlet for management is further provided at the lower end of the water outlet, a small amount of stable water can be continuously supplied to rice fields etc. even after the upper water outlet is shut off with a partition plate. This makes it possible to conserve water by keeping the amount of water in the rice fields constant, controlling the water temperature in the rice fields, and preventing the runoff of fertilizers that were removed earlier.

i Since the bottom plate is composed of a pair of split ring-shaped bottom plates, when installing a protective box at a water faucet installation location, the pair of bottom plates can be placed around the faucet without removing the faucet. The protective box can be easily installed by attaching it from both sides.
Also, when replacing the cylindrical body or bottom plate, this can be done with the water tap still in place. In addition, since this pair of bottom plates allows the cylindrical body to move freely in the lateral direction, even if a lateral load is applied to the cylindrical body, it will not damage the riser pipe of the faucet just by moving itself. Less is.

[Brief explanation of the drawing]

FIG. 1 is an exploded front view, partially in cross section, of an embodiment of the present invention; FIG. 2 is an exploded perspective view of the same embodiment;
FIG. 3 is an enlarged perspective view of the partition plate mounting portion of the main body in the same embodiment, FIG. 4 is an enlarged plan view of the partition plate mounting portion of the main body, and FIG. FIG. 6 is a cross-sectional view of one type of conventional water faucet protection box, and FIG. 7 is a cross-sectional view of another type of conventional water faucet protection box. 1...Body, 2...Lid, 3...Bottom plate, 4...Water spout, 5...Administrative water spout, 6...Partition plate, 7...Rise pipe, 8...Water faucet.

Claims (1)

[Claims for Utility Model Registration] 1. A cylindrical body whose diameter tapers upward and has at least two water ports at the top end, and a two-split ring installed at the bottom end of the body. 1. A protective box for a water faucet, comprising a pair of bottom plates having a shape, the main body and the bottom plate being made of a concrete material reinforced with alkali-resistant glass fiber. 2. The water faucet protection box according to claim 1, wherein the water spout has a management water spout connected to the water spout at its lower end. 3. The protective box for a water faucet according to claim 1 or 2, wherein both side edges of the water spout have thick wall portions for fitting a partition plate. 4. The protective box for a water faucet according to claim 1, wherein each of the bottom plates is provided with a notch along the outer periphery of the rising portion of the faucet.