JPS625077Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to an improvement of a horizontal water lock in which a cap is screwed onto the tip of a tubular water lock body, and an underdrain drain pipe connection portion is provided at the base end. The purpose of this is to prevent damage to the ridge due to water leakage and the phenomenon of the lock main body slipping off due to pressure water.

As shown in Figure 3, this type of horizontal water lock is installed horizontally under a ridge so that the tip protrudes into the side gutter in order to drain excess groundwater collected by a culvert drainage pipe buried under the rice field into the side gutter. Although they were buried, the ridges were frequently damaged due to water leakage from the rice field, and the water lock itself often fell off due to pressure.

This invention was devised in view of the above, and
The present invention will be explained below based on the embodiment shown in the drawings. In the drawing, 1 is a water lock main body made of a hard synthetic resin pipe such as a polyvinyl chloride pipe, and 2 is a cap screwed onto the tip of the water lock main body 1. , which is used for adjusting the groundwater level; 3 is the underdrain drainage pipe connection part provided at the base end of the water lock body 1; and 4 is the outer periphery near the base end of the water lock body 1. It is a relatively wide flange that is stretched over the surface in the form of a collar, and is made of a circular or square plate made of hard synthetic resin. In the figure, 5 is a screw thread provided at the tip of the water lock body 1, 6 is a mounting string for the cap 2, 7 is an underdrain drainage pipe connection made of a corrugated pipe, etc., 8 is a field, and 9 is a screw thread provided at the tip of the water lock body 1.
10 indicates a ridge, and 10 indicates a side gutter.

As mentioned above, the present invention has a tubular water lock body 1.
The cap 2 is screwed onto the distal end of the cap, and the underdrain drain pipe connection section 3 is provided at the proximal end, and a relatively wide flange 4 is provided on the outer peripheral surface near the proximal end, making it easy to use. In this case, the main body 1 of the water lock is buried horizontally so that the flange 4 is vertically located below the ridge 9 and the cap 2 located at the tip protrudes into the gutter 10, as shown in FIG. The underdrain drain pipe 7 is connected to the underdrain drain pipe connection part 3 provided at the end.

Therefore, water leaking from the rice field does not flow out along the outer circumferential surface of the water lock body 1, which has become relatively porous, but is dispersed over a wide area at the flange 4 provided at the base end of the water lock body 1. Therefore, damage to the ridge 9 and the phenomenon of the water lock body 1 falling off can be prevented.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of the product, FIG. 2 is a sectional view of the same, and FIG. 3 is a diagram showing the product in use. 1... Water lock main body, 2... Cap, 3... Underdrain drain pipe connection part, 4... Collar part.

Claims (1)

[Scope of utility model registration request] In a horizontal water lock, in which a cap is screwed onto the tip of a tubular water lock body and a culvert drain pipe connection portion is provided at the base end, a circular plate or a square plate is installed on the outer peripheral surface near the base end of the water lock body. A horizontal type water lock with a relatively wide collar stretched like a collar.