JPH0414929B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application This invention relates to a livestock watering system for supplying water to cattle and the like, and particularly to one that uses geothermal heat to prevent freezing in cold regions.

BACKGROUND ART Electric heaters have been commonly used to prevent freezing of livestock water supply systems in cold regions. For example, on pages 253-254 of ``Illustrated Livestock Facilities'' co-authored by Shigeru Ozaki and Koji Hirokawa, published by Nogyo Tosho Co., Ltd. in April 1969, ``Structure of a water dispenser equipped with a heater to prevent freezing (US Department of Agriculture)'' is shown. has been done.

That is, in the above-mentioned document, referring to FIG. 5, (1) the water pipe 11 is buried below the frozen layer, the rising part is buried up to 1 m below the frozen layer, and passed through the earthen pipe 13 with a diameter of 15 to 30 cm. (2) It is efficient to install the heater at the bottom of the aquarium. In this case, the heater should be equipped with a thermostat to keep the water temperature at 7 to 10 degrees Celsius, and the heater should also be moisture-proofed to prevent electric shock. Ground for prevention. (3) Make the water tank an insulated structure, and attach a spring-loaded lid where the cows can put their mouths. It is stated above.

Furthermore, to explain Figure 5, 17 is a concrete base of at least 1.8m square, 18 is an automatic water supply frame with some parts omitted, 19 is gravel, 21 is a water stop valve, 23 is a heater wire, and 24 is underground. A distribution cable, 26 is a conduit, 27 is a switchbox, 28 is a telephone pole, and 29 is an overhead wire for power transmission. 3
1 is a ground wire, which connects the ground terminal of the switch box 27 (not shown) and the iron rod 3 buried underground.
It is connected to 2.

On the other hand, there are also water supply devices that do not use electric heaters. U.S. Patent No. 3,745,977 (1973) “Cattle and Hog
Watering Apparatus) is one example.
6 and 7, the present invention shows a circular aquarium 42 (the figure shows a part of the vertical cross section) in which heat insulating materials 50 and 54 are attached to the outer periphery, the inside of the bottom, and the back surface of the top lid 52, respectively. At the center, an insulating cylinder 58 with an open bottom and a sealed top passes through the upper lid 52 and protrudes into the circular water tank 42.
8 and an appropriate number (4 to 5
water supply device 10 whose bottom surface is visible at the bottom of the aquarium,
It is disposed so as to penetrate through the upper lid 52. The water supply device 10 is an upright cylindrical container 12 with a circular drinking spout 14 on the top surface and an open bottom surface.The hollow part of the hollow outer shell 22 is filled with a heat insulating material 25, and the inside of the hollow outer shell is The water chamber is now 30. The disc-shaped float valve 16 is housed in the water chamber 30, and its upper surface is always in close contact with the lower periphery of the circular hole drinking spout 14 due to buoyancy, but when the livestock pushes it with their mouth, the water in the water chamber 30 leaks. When the user releases his or her mouth, the circular hole drinking spout 14 automatically closes due to buoyancy. The wire mesh 34 is fixed horizontally in the water chamber 30 to prevent the float valve 16 from falling from the bottom of the upright cylindrical container 12 when the water supply device 10 is attached to the circular water tank 42.

In the figure, 20 is a water level, 46 is a control valve, 48 is a water pipe connected to an appropriate water source, 60 is a float, 62
64 is a connecting rod, 64 is an operating lever, and 66 and 70 are water supply branch pipes connected to the control valve 46, which automatically replenish the amount of water that has decreased due to drinking by livestock up to a water level of 20.

In short, the above invention includes a circular water tank 42, an upper lid 5
2. The upright cylindrical container 12 and the insulating cylinder 58 are made to have an insulating structure, and when the livestock is not drinking water, the round hole drinking spout 14 is closed with the float valve 16 to prevent outside cold air from entering the circular water tank 42. This prevents the water in the tank from freezing.

Problems to be Solved by the Invention By the way, the above-mentioned livestock water supply system using an electric heater can reliably prevent freezing, but it requires an electricity bill of several tens of thousands of yen per month and is prone to leakage and electric shock. There was a problem with it being dangerous. On the other hand, those that attempt to prevent freezing by creating an insulating structure for the water tank without using an electric heater,
It is economical to use as there is no need for electricity, but since the drinking water in the water tank is not heated at all, some kind of means to more reliably prevent freezing has been desired.

Furthermore, in livestock water supply systems, the inside of the tank becomes dirty sooner than expected due to food particles dropped from the mouths of livestock when drinking water. Therefore, the water supply system for livestock must be able to easily clean the inside of the tank.

SUMMARY OF THE INVENTION Therefore, the present invention aims to provide a water supply system for livestock that has a water supply tank with an insulated structure, uses inexpensive soil temperature as a heating energy source to prevent freezing, and allows the interior of the tank to be easily cleaned. This is the purpose.

Measures to solve the problem It is known that deep dug wells hardly freeze even in the coldest seasons. This is because when the temperature drops below the freezing depth, the ground temperature becomes positive and the water is warmed. As shown in actual measurements in Examples described later, the soil temperature becomes 4° C. or higher when the temperature is approximately 1 m below the freezing depth.

The present invention improves a known water supply tank with an insulated structure, uses the ground temperature below the freezing depth as a heat source to prevent freezing, and also makes cleaning the inside of the tank simple and easy. will be explained with reference to FIGS. 1 to 3, which correspond to embodiments. That is,
Water storage tank 3 filled with a heat insulating material 43 inside a box-shaped hollow shell
The upper surface of the opening of 5 is removably covered with an upper lid 36 filled with a heat insulating material 44 in a plate-like hollow shell body in which an appropriate number of round drinking holes 59 are bored, and the round drinking holes 59 are closed in the water storage tank 35. A recess 41 is formed in the center of the tank bottom in which the float valve 61 is housed so that it can float and sink, and the inner and outer bottom plates of the hollow shell are respectively used as a ceiling plate and an open bottom. An overflow pipe 47 that penetrates the center of the plate and has a lower end protruding into the recess 41 and an upper end that opens above the full tank water level a, and a ball tap 55 are attached to regulate the full tank water level a. The water supply pipes 53 are respectively set upright in the water tank 35, and the water supply tank 33 is equipped with a drain pipe 49 communicating from the bottom of the tank to the outside of the peripheral wall. This water tank 33 is horizontally fixed to the upper surface of the central part of a concrete base 77 buried in the ground with the upper surface protruding horizontally above the ground, and the upper end is fixed to the upper surface of the concrete base 77 below the recessed portion 41. Underground greenhouse shafts 80 and 9 are open, penetrate vertically through the concrete base 77, reach below the freezing depth at the lower end, and have an insulating cylinder 78 fitted therein between the upper end and the freezing depth.
1 was established. Furthermore, a water pipe 86 connected to an appropriate water supply source is connected to the underground greenhouse shaft 80, 91 from below the freezing depth.
The lower end of the water supply pipe 53 and the upper end of the water supply pipe 86 are connected to communicate with each other so as to supply water to the water tank 33.

Function The present invention provides water supply tank 33 by the above-mentioned means.
Water is supplied from the water supply pipe 86 to the water supply pipe 53 through the water supply pipe 53, and the ball tap 5 attached to the water supply pipe 53
5, the water level is always kept at the full water level a. Since the water tank 33 is horizontally fixed to the horizontal upper surface of the concrete base 77,
The float valve 61 is raised and lowered so that it does not shift to one side, and the circular hole drinking spout 59 is reliably opened and closed.
The upper surface of the upper lid 36 is leveled so that livestock can easily drink water. The float valve 61 allows the livestock to drink the water in the tank by pushing it with their mouth, and when they finish drinking and let go of their mouth, it automatically comes into close contact with the lower edge of the circular hole drinking spout 59 due to buoyancy, and the water outside the tank is released. Prevents cold air from entering the tank. Furthermore, the heat insulating materials 43 and 44 filled in the hollow shells of the water tank 35 and the upper lid 36 keep the drinking water in the water tank 33 warm and prevent cold air from outside the tank from entering the tank.

By removing the upper lid 36, which removably covers the upper surface of the opening of the water tank 35, the upper surface of the water tank 35 is opened, making it easier to clean the inside of the tank. Then, the drain pipe 49 drains water contaminated by cleaning, small dust, etc. to the outside of the water tank 35.

An underground hot water shaft 8 whose lower bottom reaches below the freezing depth and a heat insulating cylindrical body 78 is fitted between the upper end and the freezing depth.
0.91, since the air inside the mine is warmed by the geothermal heat at the bottom with a positive temperature, it produces a natural ventilation effect similar to that of a chimney, and the warm air passes through the overflow pipe 47 and is connected to the water surface in the water tank 35. Top lid 3
6 and warms the drinking water in the water tank 35 during this rise. Warm air rising above the drinking water also warms the drinking water from the surface.
At this time, the heat insulating cylindrical body 78 prevents the warm air from being cooled down to below zero degrees, although the ground temperature is negative between the ground and the depth of freezing. Moreover, on the other hand, the overflow pipe 4
7 becomes an overflow pipe when the ball tap 55 malfunctions and exceeds the full water level a, and the overflowing water falls into the underground greenhouse shaft.

Furthermore, the upper surface of the ceiling plate of the recessed part 41 formed at the lower bottom of the water tank 33 is in contact with the drinking water in the water tank 35, and below the recessed part 41 there is an underground greenhouse shaft 80, Since the upper end of the opening 91 is located, warm air inside the mine passes through the ceiling plate and warms the drinking water in the water tank 33 to prevent it from freezing. That is, the recessed portion 41 functions as a type of tank bottom heater. As mentioned above, underground greenhouse mines 80 and 91
The purpose of this is to raise air warmed by geothermal heat at the bottom of the mine, thereby warming the drinking water in the water tank 33 through the overflow pipe 47 and the recess 41, thereby preventing it from freezing.

Embodiments Embodiments of the present invention will be described below with reference to the drawings.
In FIGS. 1 to 3, the water supply tank 33 is formed into a rectangular box shape by removably covering the open upper surface of the water storage tank 35 with an upper lid 36. 37,
... are latch fittings generally called snap locks, which are arranged on each of the four peripheral walls of the water tank 33.
The upper cover 36 is removably connected to the upper cover 36. The above-mentioned water storage tank 35 has an inner box 38 and an outer box 39 whose upper ends are aligned at the same height, and the inner box 38 is housed in the outer box 39 in a double structure with equally spaced spaces between the front, the left, the right, and the bottom. A top plate 40 is welded horizontally to the upper part of the outer periphery of the inner box 38 and the inner periphery of the outer box 39 through both end faces thereof to form a rectangular box-shaped hollow shell. The fixed plate of the inner box 38 is used as a ceiling plate on the lower side, and the bottom plate of the outer box 39 is opened to form the recessed part 4.
1 was formed. This recessed part 41 is designed to have a cross-sectional area as large as possible, and in this embodiment has a cylindrical shape with the short side of the inner box 38 having a diameter. Although not shown, the recess portion 41 may be formed by using the entire bottom plate of the inner box 38 as a ceiling plate. A sponge gasket 45 is sandwiched between the lower surface of the upper lid 36 and the upper surface plate 40 of the water tank 35 to prevent drinking water from leaking between the two. The illustrated water tank 35 has an inner depth of 30 cm, a width of 50 cm, a length of 110 cm, and a water storage capacity of approximately 150 cm.
The hollow shell has a thickness of about 15 cm, and the inside of the shell is filled with a heat insulating material 43.

Next, 47 is an overflow pipe, and the inner box 3
8 vertically penetrates the center of the bottom plate of the inner box 38, its lower end projects into the recess 41, its upper end opens midway between the full water level a of the water tank 35 and the lower surface of the upper lid 36, and its base extends through the bottom plate of the inner box 38. is fixed to. Reference numeral 49 designates a drain pipe whose inlet is fixed to the bottom plate near the inner circumferential wall of the inner box 38, and is provided so as to penetrate the circumferential wall of the water tank 35 and drain the drinking water in the water tank 35. A water stop plug 51 is removably screwed onto the outlet of the drain pipe 49.

The water supply pipe 53 penetrates the bottom plate of the inner box 38 near the overflow pipe 47 and is fixed to the bottom plate vertically, has a lower end protruding into the recess 41, and has a ball tap 55 attached to the upper end. 56 is a float of the ball tap 55, which is adapted to regulate the full water level a of the water tank 33. A dustproof wire mesh 57 is bent into a U shape so as to surround the water supply pipe 53 and the ball tap 55, and the open end of the U shape is attached to the inner periphery of the water tank 35, so that the food particles dropped from the mouths of livestock when drinking water are removed. This prevents the ball tap 55 from malfunctioning.

The upper lid 36 is provided with a circular drinking spout 59 at an appropriate distance from the center of the flat hollow shell to the left and right, and the hollow shell is filled with a heat insulating material 44.
The float valve 61 is formed into a flat spherical body by welding two one-shaped plates with a diameter slightly larger than the circular drinking spout 59 with their end faces facing each other. The float valve 61 includes a protrusion 63 fixed to one place of the welded part and a protrusion 93 fixed to the lower surface of the upper lid 36.
It is connected to the top lid 36 in a floating and sinking manner (see the dashed line in FIG. 3) via a flexible string 94 such as a chain that connects both ends to the upper lid 36, and the upper surface periphery is the lower peripheral edge of the circular drinking spout 59. Due to buoyancy, they are becoming close to each other. Although not shown, the float valve 61
Alternatively, the outer periphery of the welded portion may be attached to the lower surface of the upper lid 3 via a hinge, and the round drinking spout 59 may be opened and closed in a vertically pivotable manner. The float valve 61 also includes a plug 6 that injects water into the inner cavity so that the buoyancy can be adjusted to an appropriate level for livestock to push with their mouths.
5 was screwed onto the bottom surface.

The thickness of the central portion of the upper lid 36 is approximately 15 cm, and the diameters of the circular drinking spout 59 and the float valve 61 are approximately 35 cm and 45 cm, respectively. Insulation material 43, 44
is polyurethane foam or polystyrene foam.

Next, FIG. 8 is an enlarged front view of the latch fitting 37,
FIG. 9 is a longitudinal sectional view taken along the line CC in FIG. 8.

In both figures, the bracket 67 and the latch holder 75 are fixed vertically oppositely at the upper center of the four circumferential walls of the water storage tank 35 and the lower center of the four circumferential walls of the upper lid 36, respectively, and the bracket 67 has a protrusion 68 in the center. is vertically protruded, and the latch lever 6 is attached to this protrusion 68.
The head part 9 is attached to a pin 71, and the tail part is provided so as to turn in the direction of the arrow a. Further, a forked arm part of a latch piece 72 whose lower part is a forked arm part is fitted onto the intermediate part from the head of the latch lever 69, and the tips of both arms are attached to the latch lever 69. The head of the latching piece 72 has a latching portion 74 formed by bending the side facing the top cover 36 downward at a right angle, and a latching holder 75 and an upper end of the central portion. It protrudes outward and then is bent upward at a right angle to form a hook receiving portion 76, so that the hook portion 74 and the hook receiving portion 76 engage with each other.

The solid line in FIG. 9 indicates that the latch portion 74 of the latch piece 72 engages with the latch receiver 76 of the latch receiver 75, and the water storage tank 35
This figure shows the state in which the upper lid 36 is attached. In this state, the pin 73 that pivotally connects the latch piece 72 to the latch lever 69 is in a position closer to the bracket 67 than the pin 71, and the pin 73 automatically passes through the center of the pin 71. The hanging piece 72 extends outward beyond the hanging line so that it does not come off the latch receiver 75. And the latch lever 6
When 9 is turned by hand in the direction of the arrow a, the latch piece 72 is lifted up by the pin 73 as shown by the dashed line, and the latch part 74 can be removed from the latch receiver part 76 as shown by the arrow b. It's summery. That is, the latch fittings 37, . . . allow the upper lid 36 to be easily attached to and removed from the water tank 35 by one-touch operation of the latch lever 69.

Next, as shown in FIGS. 1 to 3 again, the concrete base 77 is buried at an appropriate depth underground with the top surface slightly higher than the ground surface and horizontal, and the water tank 33 is placed horizontally in the center and fixed. It is something to do. 8
3, ... are anchor plates fixed to the lower center of the four peripheral walls of the water tank 35, 84, ... are anchor bolts buried in the concrete base 77, 85 are nuts screwed onto the anchor bolts 84, and the water tank 33 is fixed to a concrete base 77.

Reference numeral 80 denotes an underground greenhouse shaft, in which a recess 41 is provided below the recess 41 formed at the bottom of the water tank 33.
The upper surface of the concrete base 77 is provided with an open upper surface having a cross-sectional area approximately the same as that of the upper surface of the concrete base 77, and a heat insulating cylinder 78 is fitted on the inner periphery from the upper end to the freezing depth. It is formed underground to a height of 1 m or more. Reference numeral 79 denotes a cylindrical body made of a stainless steel plate, and a heat insulating material is pasted on the outer periphery of the cylindrical body 79 to serve both to reinforce the heat insulating cylinder 78 and to protect the inner circumferential surface.

81 and 82 are concrete pipes that are connected vertically below the recessed part 41 to form the underground greenhouse shaft 80, and are JIS standard A5330 unreinforced concrete pipes (nominal diameter 600, effective length 1000 mm). The heat insulating material around the outer periphery of the stainless steel plate cylinder 79 is made of foamed urethane with a thickness of about 5 cm. Since the underground greenhouse mine 80 has concrete pipes 81 and 82 connected to each other, the bottom of the mine reaches approximately 2 meters underground, which is approximately twice the freezing depth in a fairly cold region, such as the Tokachi region of Hokkaido. Although not shown, if the recess 41 is formed into a rectangular tube shape with the entire bottom plate of the inner box 38 of the water storage tank 35 serving as a ceiling plate as described above, the underground greenhouse shaft will have a rectangular tube shape. concrete pipes connected together.

Next, the water pipe 86 is connected to a suitable water supply source,
It is set up in the underground greenhouse shaft 80 from below the freezing depth, and the upper end is connected to the lower end of the water supply pipe 53 via a clip 88 by a flexible tube 87. The hose 89 has its upper end connected to the lower end of the overflow pipe 47 via a hose band 90, and is suspended in the underground greenhouse shaft 80 with its lower end almost at the freezing depth. The air is kept warm to some extent and raised to the overflow pipe 47.

FIG. 4 shows an underground greenhouse shaft 91 of another embodiment,
In this case, the freezing depth is similar to underground greenhouse shaft 80, but the portion below that depth gradually expands as it goes downward, and the bottom of the shaft is at least one point below the freezing depth.
It is set to m. Concrete pipe 81 in the diagram
is the same as the above-mentioned underground hot water pit 80, and the truncated conical concrete pipe 92 has an inner diameter of the upper part and about twice the inner diameter of the lower part. This underground greenhouse shaft 91 may also be made into a prismatic cylindrical shape as in the case of the underground greenhouse shaft 80 when the recessed portion 41 is square cylindrical as described above. Furthermore, although underground greenhouse shaft 91 is somewhat troublesome to bury, it has the advantage of increasing the area of the bottom of the shaft where geothermal heat is utilized. After that, the water supply pipe 86, flexible tube 87, and water supply pipe 5 in FIG.
3. The overplow pipe 47, hose 89, etc. are the same as in the case of FIG.

Next, the results of a test that confirmed the antifreeze effect of the water supply device of the present invention will be described.

Exam date and time: February 6, 1986, 4:00 pm to February 7, 1986, 9:00 am.

Location: At a private ranch in Kunikofu, Kitami region, Hokkaido, 4-
This is a D-shaped house where 20 heifers, 6 months old and 20 to 20 months old, are kept.

Test equipment: A rectangular water tank with an internal volume of 150 and two round drinking holes as explained in the example, an underground greenhouse shaft with a concrete pipe inner diameter of 60 cm, a bottom depth of approximately 1.9 m from the ground surface, and an underground greenhouse shaft with an inner diameter of 60 cm. A water pipe was installed from approximately 2 meters into the center of the underground greenhouse shaft. The soil at the bottom of the mine was volcanic ash, and there was no spring water inside the mine.

Temperature measuring device: Self-recording resistance thermometer. Use an alcohol thermometer to measure water temperature.

Temperature measurement points: A Temperature outside the building B Temperature inside the building (at a point 2.5m above the floor) C Wall edge at the bottom end of the underground greenhouse shaft D Midpoint of the underground greenhouse shaft (near the bottom end of the insulating cylinder) H
Water surface test results of the water tank: (1) Temperature of tap water February 6, 1986, 4:00 p.m.: 4℃ February 7, 1986, 9:00 a.m.: 3.5℃ (2) Measurement Temperature at point A. Outside the building... 9:00 am on February 7th, -23℃ B. Inside the building... -13°C at the same time as above C. Wall edge at the bottom end of the underground greenhouse shaft Between 5:00 pm and 7:00 pm on February 6th, 4 ~5℃,
The temperature reached a steady value of 5°C.

D. Midway point of underground greenhouse shaft Steady value at 4℃ at the same time as C.

E Upper end of underground hot water pit Steady value at 4℃ at the same time as C.

Water surface in the water tank February 7th at 9:00 a.m. It was 3.5℃, the same as tap water.

(3) Earthen floor inside the building It was completely frozen.

As described above, the livestock water supply system according to the present invention can maintain a positive water temperature close to the ground temperature in an underground hot water pit, completely preventing freezing, even after a day and a night at considerably low sub-zero temperatures. We were able to. This test was conducted inside the building with both float valves removed, but it is assumed that a float valve is necessary outside the building where there is wind, and that doing so would prevent freezing even outside the building. did it.

Effects of the Invention As explained above, the livestock water supply device of the present invention supplies drinking water from below the freezing depth to the water supply pipe from the water supply pipe set up in the underground greenhouse mine to the water supply tank at a specified water level using a ball tap. Water can be automatically supplied to the animal, and the livestock can drink water by opening and closing the round hole drinking spout using a float valve, thereby enabling labor-saving management of water supply. In addition, the upper lid that covers the top of the opening of the water tank is attached to the water tank with a latch that can be easily engaged and removed with a single touch, making it extremely easy to remove and clean the inside of the water tank. can. and,
Since the water tank is equipped with a drain pipe, dirty water and small garbage generated during cleaning can be drained out of the water tank, allowing fresh drinking water to be supplied to livestock.

Furthermore, the water tank is a hollow shell filled with insulation material, and when the livestock is not drinking water, a float valve seals the round hole drinking spout, preventing cold air from outside the tank from entering the tank. and can be terminated. In particular, the present invention provides an underground greenhouse shaft that penetrates the center of a concrete base on which a water supply tank is mounted and fixed, and whose resistance reaches below the freezing depth, and a water storage shaft that corresponds to the upper end opening of the underground greenhouse shaft. A recess is provided at the bottom of the tank so that the drinking water in the tank comes into contact with the ceiling plate, and water is stored through the center of the ceiling plate so that the lower end protrudes into the recess and the upper end opens above the water surface. Since the tank is equipped with an overflow pipe installed vertically inside the tank, the underground greenhouse shaft raises the air warmed by the geothermal heat at the bottom of the mine, and the warm air that rises passes through the recess from the bottom of the water tank to the drinking water in the tank. By warming the water and then warming the drinking water from the water surface while it is rising up the overflow pipe and after it rises above the water surface, it is possible to prevent the water tank from freezing during the winter in cold regions. Moreover, since the present invention utilizes geothermal heat once installed, it is possible to prevent freezing without incurring heating costs, and to obtain a water supply system for livestock that is completely free from the risk of electrical leakage.

In addition, the overflow pipe becomes an overflow pipe when the water level of the water tank exceeds the full water level due to a malfunction of the ball tap, and the overflow pipe falls to the bottom of the underground greenhouse shaft and permeates into the ground, so the livestock water supply system cannot be used. It is possible to prevent unexpected situations from occurring due to overflowing water. In particular, raising heifers using the cold balloon method requires a water supply device that can prevent freezing, and the present invention can provide a water supply device suitable for the above method.

[Brief explanation of drawings]

FIG. 1 is a partially cutaway plan view of the livestock water supply device according to the present invention, FIG. 2 is a partially cutaway vertical sectional view taken along line A-A in FIG. 1, and FIG. 1 is a partly omitted vertical cross-sectional view taken along line B-B in FIG. 1, and FIG. 4 is a partially omitted vertical cross-sectional view showing the main parts of another embodiment.
FIG. 5 is a perspective view of an example of a conventional livestock water supply device with main parts cut away and some parts omitted; FIG. 6 is a vertical side view showing a part of another conventional livestock water supply device; The figure is an enlarged side view with one part taken out and partially cut away in Figure 6, Figure 8 is a front view of the latch fitting in the device of the present invention, and Figure 9 is a view taken along the line C--C in Figure 8. In the cross-sectional view, the state during operation is shown by a dashed line. 33...Water tank, 35...Water tank, 36...Top lid, 37...Latching fitting, 41...Recessed portion, 43,
44...Insulation material, 47...Overflow pipe,
49...Drain pipe, 53...Water supply pipe, 55...
...Ball tap, 59...Round hole drinking spout, 61...
Float valve, 77... Concrete base, 78
...Insulating cylindrical body, 79... Stainless steel plate cylindrical body, 8
0,91...Underground greenhouse mine, 86...Water pipe, 87
...Flexible tube, 88...Clip,
94...Flexible string, a...Full water level.

Claims (1)

[Scope of Claims] 1. A box-like hollow shell body filled with a heat insulating material 43 is filled with a heat insulating material 44 inside a plate-like hollow shell body in which an appropriate number of circular drinking holes 59 are bored at the opening top surface of the water tank 35. A float valve 61 that closes the round hole drinking spout 59 is housed in the water storage tank 35 so as to be able to float and sink freely, and the inner and outer bottom plates of the hollow shell are placed in the center of the tank bottom, respectively. A recessed part 41 is formed as a plate and an open bottom, and the recessed part 41 penetrates the center part of the ceiling plate, and the lower end protrudes into the recessed part 41, and the upper end is above the full water level a. An overflow pipe 47 that opens to the water tank 35 and a water supply pipe 53 equipped with a ball tap 55 that regulates the full water level a are installed in the water tank 35, and a drain pipe that leads from the bottom of the water tank 35 to the outside of the peripheral wall. A concrete base 7 in which a water tank 33 having a water tank 49 is buried underground with the upper surface horizontally protruding above the ground.
7 is fixed horizontally to the upper surface of the central part of the concrete base 77, and its upper end opens to the upper surface of the concrete base 77 below the recessed part 41, passes through the concrete base 77 vertically, and the lower end reaches below the freezing depth, and from the upper end Under the freezing depth, underground greenhouse shafts 80 and 91 with insulating cylinders 78 fitted therein are provided, and water pipes 86 connected to a suitable water supply source are connected to the underground greenhouse shaft 8 from below the freezing depth.
0.91, and the lower end of the water supply pipe 53 and the upper end of the water supply pipe 86 are connected in communication to supply water to the water tank 3. 2. The upper lid 36 is attached to the water tank 35 by one-touch locking/detachable latches 37 disposed between the four circumferential walls of the water tank 35 and the upper lid 36, respectively. The livestock watering device described. 3. The livestock water supply device according to claim 1, wherein the recessed portion 41 is such that the entire or part of the inner bottom plate of the box-shaped hollow shell of the water storage tank 35 serves as a ceiling plate. 4. The livestock water supply device according to claim 1, wherein the heat insulating cylindrical body 78 is a stainless steel plate cylindrical body 79 with a heat insulating material attached to the outer periphery.