JPH0247467Y2 - - Google Patents

Description

[Detailed explanation of the invention] A. Purpose of the invention: In verifying the watertightness of a valve, water pressure is applied locally over the entire area between the pipe and the valve to verify watertightness.

(Industrial Application Field) The present invention relates to a watertight verification jig for products that require watertightness, such as gates and valves.

(Prior Art) Taking a dam gate as an example, the outline of the conventional method will be explained with reference to FIGS. 4 to 6. 1 is a dam body, 2 is a reservoir, 3 is a gate for flood control, 4 is a discharge pipe,
5 indicates a skin plate for watertightness, and 11 indicates a preliminary game. The tip of the gate must have a structure as shown in Figure 4 for watertightness. FIG. 6 shows a side view of the gate. In Figure 4, 6 is watertight rubber, 7
Reference numeral indicates a holding plate for fixing the rubber, 8 a rubber pedestal for placing the rubber, 9 a gate stringer, and 10 a bolt for attaching the rubber. Water on the upstream side can be stopped by the watertight rubber 6 hitting the surface of the discharge pipe 4.

(Problems to be solved by the invention) The time for installing the gate 3 is almost the same as the time for constructing the dam body 1. That is, the water in the reservoir 2 is bypassed and does not reach the altitude of the gate 3. Therefore, when the assembly of the gate 3 is completed, all that is required is to look around the rubber 6 and the discharge pipe 4 to confirm the watertightness of the gate 3. After that, the watertightness of the gate 3 cannot be confirmed unless the water in the reservoir 2 rises to a predetermined water level several months after the dam 1 is completed.
If a water leak is discovered at that time, the preliminary gate 1
The water on the upstream side of 1 was drained, and the contact between the rubber 6 and the discharge pipe 4 was adjusted using bolts 10. The problem is that the watertightness of the gate valve, which conventionally could not be confirmed until the water level of the reservoir 2 rises, is attempted to be improved by verifying the watertightness of the gate valve immediately after the product is completed.

B Structure of the idea (Means for solving the problem) In order to achieve the above objectives, we decided to devise a jig that can easily be adjusted on-site by applying water pressure to the upstream side of product parts that require watertightness. be.

(Example) Figures 1 to 3 show the configuration of the present invention. 12 is a water pipe with several water discharge holes on the watertight side. 1
3 is the hardware that holds the pipe 12 in place, 14 is the pipe 12
(In some cases, these may be omitted and watertightness may be achieved by the watertightness of the next filler 15.), 15 is for fixing the pipe 12 and hardware 13 and ensuring watertightness. A filler 16 is a wedge inserted between the metal fitting 17 adhered to the discharge pipe 4, the metal fitting 17a adhered to the skin plate 5, and the metal fitting 22 adhered to the metal fitting 13 to fix the metal fitting 13. . FIG. 3 shows the installed state of the pipe 12 from the upstream side, where 19 is a joint of the pipe 12, 20 is a water supply port for feeding water into the pipe 12, and 21 is a water discharge hole. 23 shows the joint of the hardware 13.

(Function) Water is supplied into the pipe 12 through the water supply hole 20 with a hose or the like. At this time, the designed water pressure can be obtained by raising the hose to a predetermined level and supplying water, but the pressure may also be increased using a pump. The supplied water fills the space 18, and the watertightness between the rubber 6 and the discharge pipe 4 can be confirmed.

C〓Effect of the idea〓 (1) Watertightness can be confirmed in advance.

(2) Since the water supply pipe 12 is small, the amount of water required is small. Considering that it takes several months to wait for the water level in the dam to rise in order to verify watertightness, the effect is enormous. (3) Since the water supply pipe 12 is provided with a joint 19, the length of the pipe can be adjusted according to manufacturing and installation accuracy, and watertightness of the jig itself can be ensured.
(4) Since the pipe 12 is made watertight with the adhesive 14, it is easy to handle, and the pipe 12 and its counterpart (discharge pipe 4 and skin plate 5) are made watertight.

[Brief explanation of drawings]

Fig. 1 is a sectional view showing the jig of the present invention, Fig. 2 is a view of the mounting state of the jig of the present invention viewed from upstream, and Fig. 3 is a sectional view showing the jig of the present invention.
The figure is a view of the water supply pipe viewed from upstream, FIG. 4 is a diagram showing the relative position of the discharge pipe and the valve, FIG. 5 is a conventional gate valve, and FIG. 6 is a side view of the gate valve. 3...Gate for flood control, 4...Discharge pipe, 5...Skin plate, 6...Watertight rubber, 9
... Gate stringer, 13 ... Hardware holding down pipe 12, 14 ... Adhesive or weld bead to fix pipe 12, 15 ... Filler, 16 ... Wedge, 17 ... Glued to discharge pipe Metal fittings, 19...
Pipe joint, 21...Water inlet, 23...Joint of hardware 13, 24...Watertight fitting.

Claims (1)

[Scope of utility model registration request] A jig for verifying watertightness between a discharge pipe wall and a valve includes a watertight metal fitting in which a pipe having a water discharge hole and a water supply port is attached to the inside of an L-shaped steel with a filler between the pipe wall and the valve. A watertight verification jig comprising: a fixture for the metal fitting;