JPH0246526Y2 - - Google Patents

Description

[Detailed description of the invention] "Purpose of the invention" (Field of industrial application) The present invention relates to a flush valve for a simple flush toilet, etc.

(Prior Art) FIGS. 4 and 5 show a conventional flash valve having the simplest configuration,
FIG. 4 is a side sectional view, and FIG. 5 is a partially cutaway front view. The flush valve is configured so that water, etc., flows only when the operating handle 5 as shown in FIG. . In other words, the simple flush toilet is equipped with a pump-type toilet tank underground, and the toilet tank has a limited capacity. Therefore, the amount of water supplied must be kept to the minimum necessary depending on the degree of dirt in the toilet bowl, the amount of filth, etc., and for this reason, the flush valve is used. The configuration of the flush valve will be briefly explained below. still,
The two-dot chain line indicated by the reference numeral 8 in FIG. 4 is the water supply chamber of the simple flush toilet, and the reference numeral 9 is a water conduit pipe that communicates the water supply chamber 8 with a low tank or the like (not shown).

As shown in FIG. 4, in the flash valve, the inside of the valve shell body 1 constituting its external shape is separated by a partition wall 2.
It is divided into a water stop chamber 1a and a water outlet chamber 1b. A portion of the partition wall 2 forming a vertical surface is an inner flange 2b forming a water inlet 2a in the center thereof. A valve seat plate 7 made of elastic rubber or the like is joined to the inner flange 2b, and the disc-shaped valve body 3 is pressed against a valve port 7a formed in the valve seat plate 7, so that the stop occurs. Water is cut off between the water chamber 1a and the water outlet chamber 1b. Further, a valve operating rod 3a is provided on the valve body 3 so as to protrude through the valve port 7a of the valve seat plate 7. The valve operating rod 3a has, as shown in FIG.
The driven rod 5a of the operating handle 5 is constructed in close proximity to each other. At the tip of the driven rod 5a,
An eccentric cam 6 as shown in FIG. 4 is attached. Therefore, when the operating handle 5 is rotated, the eccentric cam 6 causes the valve operating rod 3a of the valve body 3 to tilt. Therefore, the valve body 3 is separated from the valve seat plate 7, and water is allowed to flow.

(Problems to be Solved by the Invention) In the conventional flash valve, the assembly work of each component related to the valve body 3 was extremely troublesome. In other words, when assembling the valve body 3, the valve seat plate 7 is attached to the inner flange 2b of the valve shell body 1.
After joining, the valve body 3 is inserted into the valve port 7a of the valve seat plate 7, and then the spring 10 is interposed concentrically between the valve body 3 and the valve case 4. Then, the valve case 4 must be carefully screwed into the valve shell body 1. Moreover, the valve seat plate 7 could not be securely fixed unless the valve case 4 was screwed in to the innermost part of the valve shell 1. This kind of assembly work is performed at the time of factory shipment, etc.
The valve shell body 1 can be turned sideways or reversed freely, and this is possible if the valve body 3 is assembled so that the valve operating rod 3a faces downward. However, after the flash valve has been installed in a general household, etc., the valve body case 4 must be removed for maintenance etc.
Once removed, it was impossible to correctly mount the valve body 3 unless the valve shell body 1 was turned sideways.

The present invention was developed in view of the above-mentioned circumstances, and is a novel flush valve for simple flush toilets, etc., in which the various parts related to the valve body can be easily assembled during maintenance after installation. The purpose is to provide

"Structure of the invention" (Means for solving the problems) The gist of the flush valve of the present invention is that the valve shell body is interposed in the water supply channel to a simple flush toilet, etc.
A valve seat plate that is joined to an inner flange provided around the inside of the valve shell body to partition a water stop chamber and a water outlet chamber, and a valve body for closing a valve port that is bored in the valve seat plate. , a driven rod capable of tilting the valve operating rod by contacting the valve operating rod protruding from the valve body through the valve port of the valve seat plate; and an operation member attached to the outer end of the valve shell body of the driven rod. In the flush valve comprising a handle, the valve seat plate is pressed and fixed to the inner flange by a cylindrical valve case that is screwed onto the valve shell, and the valve body is inserted into the cylindrical hole of the valve case. It is pressed and biased by a spring or the like that is engaged with an adjustment bolt that is screwed inside.

(Function) This flush valve has a fixed structure of the valve seat plate,
The holding structure for the spring for pressing and biasing the valve body is provided separately. That is, the valve seat plate is fixed by screwing a cylindrical valve case onto the valve shell, and the spring is held so as to press and bias the valve body by screwing an adjustment bolt into the valve case. It is something that Therefore, even when the flush valve of the present invention is installed, in other words, the various parts related to the valve body can be easily and accurately assembled without taking the trouble of turning the valve shell sideways or inverting it. Further, since the adjustment bolt independently presses the spring, it is possible to adjust the biasing force of the spring by changing the degree of screwing of the adjustment bolt into the valve case. With conventional flush valves, such biasing force adjustment was not possible.

(Example) The present invention will be described below based on drawings showing examples thereof.

FIG. 1 is a side sectional view showing the flush valve. The most distinctive features of the flush valve of this invention are the valve case 11 that fixes the valve seat plate 7, and the adjustment bolt 14 that holds the spring 13 for pressing and biasing the valve body 12.
The point is that they are separate entities.

As shown in FIG. 1, the valve case 11 is formed into a cylindrical shape, and an external thread for screwing into the valve shell body 16 is carved on the outer surface of the cylinder. In addition, the valve case 1
The inner cylinder hole formed in 1 has an internal screw carved into the inner surface of one end (left side in the drawing), and the inner diameter of the other end (right side in the drawing) is enlarged to form a water flow chamber. 11a.

The adjustment bolt 14 is adapted to be screwed into an internal thread formed in the cylinder inner hole of the valve case 11, and has a fitting recess 1 for the spring 13 on the threaded end surface.
4a is recessed.

The other configuration of the flush valve of the present invention is almost the same as that of the conventional flush valve (see FIGS. 4 and 5), and the inside of the valve shell body 16 is separated by the inner flange 16c and the valve case 11. It is divided into a water stop chamber 16a and a water outlet chamber 16b.
Further, a valve seat plate 7 is joined to the inner flange 16c of the valve shell body 16, and the valve body 12 is pressed against the valve port 7a of the valve seat plate 7, so that the water stop chamber 16a and the water outlet chamber 16b are connected to each other. It is designed to stop water between.

Now, it is assumed that the flush valve of the present invention is installed in a water conduit 9 that communicates a water supply channel 8 of a simple flush toilet with a low tank (not shown) or the like. . Assume that it becomes necessary to remove the valve body 12 in order to replace the valve seat plate 7 or the like. In this case, first, adjust bolt 1
4 from the valve case 11, and take out the spring 13 at the same time. Next, attach the valve case 11 to the valve shell body 16.
The valve body 12 and the valve seat plate 7 can be taken out by unscrewing them. When assembling this, the valve seat plate 7 is joined to the inner flange 16c in the valve shell body 16, and the valve case 11 is attached to the valve shell body 16 with the valve body 12 inserted into the valve case 11. Screw in.
Moreover, after fitting the spring 13 into the fitting recess 14a of the adjusting bolt 14, the adjusting bolt 1
4 into the valve case 11.

As shown in FIG. 2, a flapper opening mechanism 20 is attached to the right side of the flush valve of the present invention. The flapper opening mechanism 20 converts the rotation of the operating handle 17 into linear power using a rack and pinion (not shown) housed in a gear case 21, and converts the linear power into linear power via a wire cable 22 or the like. As shown in the figure, the flapper valve for closing the discharge port of the simple flush toilet 23 (the weight 24 for holding the valve closed)
(only shown). In addition, the push button 25 is pushed to the opposite side of the operating handle 17.
The push button 25 is designed to protrude (see FIG. 2), and by pushing the push button 25, water can flow independently.

(Study of another aspect) In the embodiment, the valve operating rod 12a of the valve body 12 is tilted by rotating the operating handle 17, but it is possible to tilt the valve operating rod 12a by swinging using a lever structure. Alternatively, the valve operating rod may be tilted or pushed out using linear power from a push button. Therefore, the operating handle can be understood as a general concept of a handle for operating. In this way, the configuration and shape of the flush valve of the present invention can be changed as appropriate depending on the embodiment.

"Effects of the Invention" As is clear from the above explanation, according to the flush valve for a simple flush toilet or the like according to the present invention, parts related to the valve body can be assembled extremely easily and accurately. This is especially true when it comes to replacing springs due to corrosion. Furthermore, it has many excellent advantages, such as being able to adjust the biasing force of the spring that presses and biases the valve body.

[Brief explanation of drawings]

Figures 1 to 3 show the flush valve of the present invention, in which Figure 1 is a side sectional view, Figure 2 is a front sectional view, and Figure 3 is a perspective view of the flush valve installed in a simple flush toilet. , 4 and 5 show a conventional flush valve, in which FIG. 4 is a side sectional view and FIG. 5 is a partially cutaway front view. 7... Valve seat plate, 11... Valve case, 12... Valve body, 12a... Valve operating rod, 13... Spring,
14...adjustment bolt, 16...valve shell body, 16a...
...Water stop room, 16b...Water flow room, 16c...Inner tsuba,
17...operation handle, 17a...driven rod.

Claims (1)

[Scope of utility model registration request] A valve shell inserted in a water supply channel to a simple flush toilet, etc., and a valve seat plate joined to an inner flange provided around the inside of the valve shell to partition a water stop chamber and a water outlet chamber. and,
A valve body for closing a valve opening formed in the valve seat plate; and a driven member capable of tilting the valve operating rod by contacting with a valve operating rod protruding from the valve body through the valve opening of the valve seat plate. A flash valve comprising a rod and an operating handle attached to the outer end of the valve shell of the driven rod,
The valve seat plate is pressed and fixed to the inner flange by a cylindrical valve case that is screwed onto the valve shell body, and the valve body is engaged with an adjustment bolt that is screwed into the cylindrical hole of the valve case. A flush valve for a simple flush toilet, etc., characterized in that it is biased by a spring or the like fitted together.