JPS624574Y2 - - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to an improvement of a horizontal water lock device.

The terminal end edge 1a of the inlet side pipe 1 and the starting end edge 2a of the outlet side pipe 2 are made to face each other so as to taper downward to form a tapered connecting part 3', and this connecting part 3' has a tapered elasticity. A horizontal water lock device that can appropriately shut off and discharge water flowing from an inlet side pipe 1 to an outlet side pipe 2 by inserting and removing a water stop valve body 4 made of wood has been conventionally used for draining culverts in rice fields and fields. As shown in FIG. 1, a typical valve of this type has a tapered water stop valve body 4 made of an elastic material attached to a connecting part 3'.
In order to ensure that the water flowing from the inlet side pipe 1 side to the outlet side pipe 2 side can be shut off at that time, and to absorb manufacturing errors between the connecting part and the water stop valve body, the tapered shape is used. A recess 7 for receiving the tip of the water stop valve body 4 is formed in the bottom wall of the connecting portion 3', and a portion corresponding to the recess 7 is formed to protrude outside the bottom wall of the connecting portion 3'. has been done.

However, in such a structure, earth and sand often accumulate in the above-mentioned recesses and cause clogging, making it impossible to open and close the water stop valve.

In addition, in general, water lock devices require that not only the inlet and outlet pipes but also most of the other parts be buried underground, so the structure with a protrusion on the bottom wall of the connecting part as described above is not suitable. At present, improvements are desired in various respects, such as creating a water flow gradient during burial, and in terms of stability, this protrusion becomes a significant obstacle, making burial construction more difficult than expected.

The present invention was developed in view of these circumstances, and has a structure that does not have recesses on the bottom wall side of the connecting part that could cause clogging, or protrusions on the outside surface of the bottom wall that could impede construction. Moreover, it provides a horizontal water lock with a high water-stopping effect. A preferred embodiment of the present invention will be described below with reference to the accompanying drawings, in which 1 is an inlet pipe for flowing water into the main body of the water lock device;
is an outlet side pipe for draining water flowing into the device body to the outside, and the inlet side pipe 1 is connected to its bottom wall 1b.
is formed thicker than the bottom wall 2b of the outlet side pipe 2.

Here, thick means not only a substantially thick wall, but also the bottom wall itself may be hollow as shown in FIG. Furthermore, as shown in FIG. 5, the bottom wall on the inlet side may be slightly sloped so that it becomes higher as it approaches the terminal edge on the inlet side. Reference numeral 3 denotes a connecting part formed at the joining part of the inlet side pipe 1 and the outlet side pipe 2, and this connecting part 3 connects the terminal edge 1a of the inlet side pipe 1 and the outlet side pipe 2.
There is a slight gap 3a between the starting edge 2a and the bottom wall side.
The joint portions facing each other are tapered so as to taper downwardly so as to hold the joint portion 3, and a thick bottom wall 1b is formed on the inner side of the bottom wall of the tapered connecting portion 3. A step 5 is formed that descends from the inlet side tube 1 having a lower wall to the outlet side tube 2 having a thinner bottom wall 2b.

A water stop valve body 4 made of an elastic material and having a tapered shape corresponding to the shape of the connecting portion 3 is inserted into and removed from the tapered connecting portion 3 by moving the operating rod 6 up and down. This control lever 6
The space of the connecting part 3 is closed or opened by the vertical operation of the valve 1, so that water flowing out from the inlet pipe 1 through the outlet pipe 2 can be blocked and discharged.

Since the horizontal water lock device of the present invention is characterized by the structure embodied in the above embodiment, the operating rod 6 is lifted upward A as shown in FIG. When the water stop valve body 4 is pulled up from the space of the connecting part 3, there is only a slight step in the connecting part, so the flowing water is discharged smoothly, and even if there is dirt or sand mixed in the flowing water, it can be discharged as usual. Since there are no concave portions, there is no risk of sedimentation of earth and sand in the connecting portion 3.

Furthermore, when the operating rod 6 is pushed down in the downward direction B as shown in FIG. Even if there is an error in the manufacturing of the connecting part or the water stop valve body, the step 5 will ensure that there will be no gap at the end edge 1a of the inlet side pipe 1. Water can be stopped.

Furthermore, by simply providing the stepped portion 5 on the inner surface of the bottom wall of the connecting portion 3, there is no need to form a recess for receiving the tip of the water stop valve body 4 as in the conventional case, so the outer surface of the bottom wall is also flush. In addition to having unique effects such as good workability, the simple structure allows for mass production by injection molding, etc., which significantly contributes to cost reduction, resulting in improvements in terms of both function and price. We can provide horizontal water locks.

[Brief explanation of the drawing]

FIG. 1 is a vertical cross-sectional view showing an example of a conventionally known horizontal water lock, FIG. 2 is a vertical cross-sectional view of the main part of an embodiment of the horizontal water lock of the present invention when the valve is opened, and FIG. FIG. 4 is a longitudinal cross-sectional view of the main part of one embodiment of the horizontal water lock device of the present invention when the valve is closed; FIG. The figure is a longitudinal sectional view showing another embodiment of the inlet side pipe portion of the horizontal water lock device of the present invention. Explanation of symbols: 1...Inlet side pipe, 1a... Its terminal edge, 1b... Its bottom wall, 2... Outlet side pipe, 2a
... its starting edge, 2b... its bottom wall, 3... its connecting portion, 4... its water stop valve body, 5... its step.

Claims (1)

[Scope of utility model registration request] The terminal end edge of the inlet side pipe and the starting end edge of the outlet side pipe are opposed to each other so as to taper downward, forming a tapered connecting part, and a tapered water stop valve body made of an elastic material is attached to this connecting part. In a horizontal type water lock, the bottom wall of the inlet side pipe is connected to the bottom wall of the outlet side pipe, and the bottom wall of the inlet side pipe is connected to the bottom wall of the outlet side pipe. 1. A horizontal water lock device, characterized in that a step is formed on the bottom wall side of the connecting portion to drop from the inlet side tube side to the outlet side tube side by forming the connecting portion thicker.