JP4745103B2 - Pipe type horizontal water tank - Google Patents

Description

  The present invention generally relates to vertical pipe horizontal water tanks. More specifically, the present invention relates to a vertical horizontal water tank that can reliably maintain a water stop state.

  Underground drainage is widely used as a drainage method for agricultural land. On the other hand, Minamata is known as a facility for adjusting the water level of farmland. FIG. 9 is a schematic view showing an example of a water tank generally called a horizontal pipe type water tank. In the horizontal pipe type horizontal water tank 30 shown in FIG. 9, a valve rod 34 having a valve 36 attached to the lower end is disposed in the protective tube 32, and the upper end 34 a of the valve rod 34 projects upward from the upper end of the protective tube 32. ing. An outlet tube (not shown) is attached to one of the T-shaped tubes 38 arranged at the lower end of the protective tube 32, and a mouth tube (not shown) is attached to the other. Then, from spring to autumn, the valve rod 34 is lowered to bring the valve 36 into contact with the valve seat 38a to bring it to a water stop state. At the time of harvesting in autumn, the valve rod 34 is raised to open the valve 36 to drain. Further, during the winter season, the valve rod 34 is raised to keep the valve 36 open.

  However, in the above-described water tank, there is a risk that the valve stem will fall due to the weight of snow during the winter season and the water will be stopped. Moreover, since the valve rod protrudes upward from the protective tube at the time of water stoppage, the valve rod may be damaged by being caught. Furthermore, if the valve stem protrudes from the protective tube, there is a risk that it will become an obstacle when mowing or the like.

  The present invention has been developed to overcome the above-described problems of the horizontal horizontal water tank in the prior art, and can reliably maintain the water stop state and does not interfere with the water stop state. The purpose is to provide a horizontal water tank.

  The vertical pipe type horizontal water tank according to claim 1 is a protective pipe, a valve rod disposed inside the protective pipe, a T-grip attached to the upper end, and a valve attached to the lower end, and the protective pipe A T-tube having a valve seat on which the valve is seated, a throat tube connected to one horizontal tube of the T-tube, and connected to the other horizontal tube of the T-tube The T-grip has a vertical portion fixed to the valve stem, and a horizontal portion extending in the opposite direction from the upper end of the vertical portion. Support bolts that can be pulled out are respectively disposed, and a pair of notches for hooking the support bolts are provided at locations facing the diameter direction of the upper end of the protective tube, The valve stem is lowered to seat the valve on the valve seat. Rod was elevated to is characterized in that it is configured as grabs the supporting bolt outwardly to maintain the open state of the valve is hooked respectively on the notch.

  A vertical pipe type horizontal water tank according to claim 2 of the present application is the water tank of claim 1, wherein the support bolt includes a bolt part including a head part and a shaft part, and a nut part inserted into the shaft part. A male thread is formed at a location adjacent to the head of the shaft, and a C-ring is attached to the tip of the shaft to prevent the bolt from falling off the nut. The nut portion is fixed to the horizontal portion of the T-grip, and the bolt portion is rotated so that the support bolt is pulled out or accommodated inward. It is a feature.

The vertical pipe horizontal water tank according to claim 3 of the present application is the water tank according to claim 2 , wherein the horizontal part of the T-grip is formed of a cylindrical pipe member, and the diameter of the nut part is The nut portion is selected to be equal to or slightly larger than the inner diameter of the horizontal portion, and the nut portion is tightly fitted to the horizontal portion by driving the nut portion into the horizontal portion. It is characterized by this.

  According to the present invention, in the drained state, there is no possibility that the valve stem will fall due to the weight of snow or the like and the water will stop. In addition, since the valve stem does not protrude upward from the protective tube in the drained state, there is no possibility of damaging the valve stem or interfering with farm work. Furthermore, in the water tank according to claim 3 of the present application, the support bolt can be easily and firmly fixed to the T-shaped grip.

  Next, with reference to the drawings, a vertical horizontal water tank according to a preferred embodiment of the present invention will be described in detail. FIG. 1 is a schematic view showing a drainage state of a vertical pipe type horizontal water tank according to a preferred embodiment of the present invention, and FIG. 2 shows a state where the vertical pipe type horizontal water tank of FIG. 1 is installed. It is a schematic diagram.

  1 and 2, a vertical horizontal water tank according to a preferred embodiment of the present invention generally indicated by reference numeral 10 includes a protective pipe 12. The protective tube 12 is a cylindrical tube and is formed of a synthetic resin material such as vinyl chloride.

  A valve rod 14 is disposed inside the protective tube 12. The valve stem 14 is usually a cylindrical tube member and is made of a synthetic resin material such as vinyl chloride. In the upper half of the valve stem 14, a plurality of water level adjustment holes (not shown) are provided, and a water level adjustment collar 16 having an inner diameter substantially the same as the outer diameter of the valve stem 14 is fitted. Then, the water level is adjusted by moving the water level adjusting collar 16 up and down to expose / close the water level adjusting hole. Such a water level adjusting mechanism is a known means.

  A T-shaped grip 18 is firmly attached to the upper end of the valve stem 14. The T-shaped grip 18 is composed of a horizontal portion 18a and a vertical portion 18b each formed of a cylindrical tube member, and has a T-shape as a whole. The horizontal portion 18a and the vertical portion 18b of the T-shaped grip 18 are formed of a synthetic resin material such as vinyl chloride.

  Support bolts 20 are disposed at both ends of the horizontal portion 18a of the T-shaped grip 18, respectively. The support bolt 20 has a bolt portion 20a and a nut portion 20b as best shown in FIG. The bolt portion 20a includes a head portion 20a1 and a shaft portion 20a2, and a male screw 20a3 is formed at a location adjacent to the head portion 20a1 of the shaft portion 20a. A nut portion 20b is inserted into the shaft portion 20a2 of the bolt portion 20a, and a C-ring 20c is attached to the tip of the shaft portion 20a so that the bolt portion 20a does not fall off from the nut portion 20b.

  The diameter of the nut portion 20b is selected to be equal to or slightly larger than the inner diameter of the horizontal portion 18a of the T-shaped grip 18. Thereby, by driving the nut portion 20b into the horizontal portion 18a, the nut portion 20b is tightly fitted to the horizontal portion 18a, and the support bolt 20 can be fixed to the T-shaped grip 18 easily and firmly.

  A pair of notches 12 a for hooking the horizontal portion 18 a of the T-shaped grip 18 is provided at the upper end of the protective tube 12 at a location facing the diameter direction. As a result, as will be described in detail later, when the valve stem 14 is pulled up, the support bolt 20 can be projected outward and hooked into the notch 12a (see FIG. 4).

  A valve 22 is attached to the lower end of the valve stem 14, and an O-ring is attached to the valve 22 so that water can be reliably stopped.

  A T-shaped tube 24 is disposed at the lower end of the protective tube 12. The T-shaped tube 24 has an inverted T-shape when viewed from the side, and the lower end of the protective tube 12 is fitted into the vertical tube 24a. In addition, one horizontal pipe 24b of the T-shaped tube 24 is connected to a culvert drainage pipe via a spout pipe and a connection socket, and the other horizontal pipe 24c of the T-shaped pipe 24 is connected to a spout pipe. . A valve seat 24 d on which the valve 22 is seated is provided inside the T-shaped tube 24.

  FIG. 8 is a view showing the lid 26 on the protective tube 12. The lid 26 is preferably formed of rubber or the like, and is connected to the upper end of the protective tube 12 via a connector 26a so as not to be lost when the lid 26 is removed. 8A shows a state where the cover 26 is covered with the protective tube 12, and FIG. 8B shows a state where the cover 26 is removed from the protective tube 12. As shown in FIG.

  The usage method of the vertical pipe type horizontal water tank 10 of the present invention configured as described above will be described. In the water stop state from spring to autumn, the valve rod 14 is lowered to keep the valve 20 in contact with the valve seat 24d. At this time, the upper end of the protective tube 12 is closed with a lid 26 so that foreign matter does not enter the protective tube 12. When the water tank 10 is to be drained (for example, in the harvest season or winter season), the lid 26 is removed, the valve stem 14 is raised, the support bolt 20 is rotated and pulled outward, and the notch 12a is pulled out. By hooking, the valve 22 can be kept open. Then, after opening the valve 22 in this way, the lid 26 is put on the upper end of the protective tube 12.

  The present invention is not limited to the above-described embodiments, and various modifications can be made within the scope of the invention described in the claims, and these are also included in the scope of the present invention. Needless to say, it is something.

It is sectional drawing which showed the drainage state of the vertical pipe type horizontal water tank which concerns on preferable embodiment of this invention. It is the schematic diagram which showed the state in which the vertical pipe type horizontal water tank of FIG. 1 is installed. It is an enlarged view about the part 3 of FIG. It is a perspective view of the location shown in FIG. It is the enlarged view which showed the T-shaped grip. It is the perspective view which showed the support bolt. It is sectional drawing which showed the water stop state of the vertical pipe type horizontal water tank of FIG. FIG. 8A is a view showing a state where a cover is put on the protective tube, and FIG. 8B is a view showing a state where the cover is removed from the protective tube. It is sectional drawing which showed the conventional vertical pipe type horizontal water tank.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Pipe-type horizontal water tank 12 Protection pipe 14 Valve rod 18 T-shaped grip 20 Support bolt 22 Valve 24 T-shaped pipe 26 Lid

Claims (3)

A protective tube, a valve rod disposed inside the protective tube, having a T-grip attached to the upper end and a valve attached to the lower end, and a valve seat disposed at the lower end of the protective tube and seated by the valve A horizontal pipe having a T-shaped pipe, a throat pipe connected to one horizontal pipe of the T-shaped pipe, and a spout pipe connected to the other horizontal pipe of the T-shaped pipe. ,
The T-grip has a vertical portion fixed to the valve stem and a horizontal portion extending in opposite directions from the upper end of the vertical portion;
Support bolts that can be pulled outward are respectively disposed at both ends of the horizontal portion,
A pair of notches for hooking the support bolt is provided at a location facing the diameter direction of the upper end of the protective tube,
When the water stops, the valve stem is lowered and the valve is seated on the valve seat.At the time of drainage, the valve stem is raised, and the support bolt is pulled out and hooked into the notch to open the valve. A water tank characterized in that it is configured to maintain. The support bolt has a bolt part composed of a head part and a shaft part, and a nut part inserted into the shaft part, and a male screw is formed at a location adjacent to the head part of the shaft part, A C-ring for preventing the bolt part from falling off from the nut part is attached to the tip of the shaft part, and the nut part is fixed to the horizontal part of the T-shaped grip, and the bolt part is rotated. The water tank according to claim 1, wherein the water tank is configured to pull the support bolt outward or to house the support bolt inward. The horizontal portion of the T-shaped grip is formed of a cylindrical tube member, and the diameter of the nut portion is selected to be equal to or slightly larger than the inner diameter of the horizontal portion, and the horizontal portion The water tank according to claim 2 , wherein the nut portion is configured to be tightly fitted to the horizontal portion by driving the nut portion into the portion.

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