JPH02106029U - - Google Patents

Description

[Brief explanation of drawings]

Figures 1 and 2 are schematic perspective views of the water supply gate valve and drainage gate valve that constitute the rice field gate valve of this invention, and Figures 3 and 4 are front views and diagrams of the drainage gate valve. A vertical cross-sectional view, FIG. 5 is a front view of a mounting pile with an arrowhead, FIG. 6 is a front view of a partially broken water supply gate valve, and FIG.
It is a top view of a rice field showing an example of arrangement of gate valves in a rice field. 10: Paddy field gate valve, 12: Water supply gate valve, 14: Drainage gate valve, 16: Gate body, 18: Pipe assembly, 20,
21, 22: Vertical auxiliary plate of gate body, board, bottom plate, 24: Mounting stake, 26: Mounting hole, 28, 3
0: Side wall, bottom of rice field, 36: Piping (water supply pipe, drain pipe), 38: Pipe adapter, 40: Connecting pipe, 42: Elbow pipe, 44: Rotation angle display of elbow pipe, 48: Valve case, 50:
Valve means (ball valve), 52: biasing means (compression spring), 54: water supply channel, 56: drainage channel, 58: stopper.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) (a) A gate body that can be attached to a rice field, a pipe adapter that can be connected to a water supply pipe on the side wall of the rice field, and a rotatable elbow pipe that is attached to the gate body. The pipe assembly includes a check valve that closes the upper end opening of the elbow pipe, a biasing means that presses the check valve toward the valve seat, and an outflow hole that accommodates the valve means and biasing means. A valve case attached to the upper end of the pipe, a water supply gate valve equipped with (b) a gate body that can be attached to a rice field, a pipe adapter that can be connected to a drain pipe on the side wall of a rice field, a rotatable elbow pipe, and A pipe assembly is attached to the gate body, and a scale indicating the opening height of the upper end of the elbow pipe, which moves up and down according to the rotation of the elbow pipe, is written on the gate body. A rice field gate valve that combines a drainage gate valve that rotates and adjusts the opening height of the upper end of the elbow pipe to adjust the drainage water level. (2) A pipe assembly that includes a gate body that can be attached to a rice field, a pipe adapter that can be connected to a water supply pipe on the side wall of a rice field, and a rotatable elbow pipe that is attached to the gate body; a check valve that closes the upper end opening; a biasing means that presses the check valve toward the valve seat; a valve case that has an outflow hole, houses the valve means and the biasing means, and is attached to the upper end of the elbow pipe; Water supply gate valve with (3) The rice field gate valve according to claim 1 or 2, wherein the valve case is provided with a stopper for tightly fixing the check valve to the valve seat. (4) The rice field gate valve according to any one of claims 1 to 3, wherein the check valve is a ball valve and the biasing means is a compression spring. (5) A gate body that can be attached to a rice field, a pipe adapter that can be connected to a drainage pipe on the side wall of a rice field, and a pipe that has a rotatable elbow pipe and is attached to the gate body. A scale indicating the opening height of the top end of the elbow pipe that moves up and down as it rotates is written on the gate body, and by rotating the elbow pipe and adjusting the opening height of the top end of the elbow pipe, the water level of the drainage can be adjusted. Drainage gate valve.