JPH0246533Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] The present invention is a float valve in which the operating force of an operating handle installed on the side wall of a washing water storage tank is transmitted to the float valve via a chain. It concerns the chain-connected structure of

[Conventional technology]

The structure of a conventional float valve is shown in FIG. As shown in the figure, a cleaning water storage tank 1
A float valve 2 is attached to the bottom of the tank. The float valve 2 has a float ball pedestal 6 attached to a mounting hole 3 at the bottom of the tank via a gasket 4 and a nut 5, and is seated on the pedestal 6 to open and close an outlet 7 of the pedestal 6. It consists of a float ball 8.
An inverted conical valve seat 9 is provided on the upper side of the pedestal 6, and a float ball 8 is provided in the outlet 7.
A radial guide 10 is provided to guide the lifting and lowering movement of the holder. 11 is an overflow pipe. An annular stopper 12 is attached in the middle of the overflow pipe 11 to restrict the upper limit position of the float ball 8. The upper side of the float ball 8 is connected to an operating handle 14 via a C-shaped chain 13, and a guide bar 15 that is inserted through the hole 10a of the guide 10 is attached to the lower side. There is.

For example, when the operating handle 14 is operated when flushing the toilet bowl, the float ball 8 is pulled up via the chain 13, and the float ball 8 moves away from the valve seat 9 and rises due to buoyancy, and is hooked onto the stopper 12. once held. As a result, the outflow port 7 is opened, and the wash water stored in the tank 1 flows from the outflow port 7 toward the toilet bowl, cleaning the inner surface of the toilet bowl. When the height of the cleaning water in the tank decreases, the float ball 8 also lowers, and eventually seats on the valve seat 9 due to the suction force of the cleaning water flowing through the outlet 7. Thereafter, a predetermined amount of cleaning water is stored in the tank 1 by water supply from a not-shown ball tap, and is on standby for next use.

[Problem that the invention attempts to solve]

However, in the case of the conventional C-shaped chain 13, the chain 13 itself becomes entangled when the operation handle 14 is operated vigorously or when assembled and shipped.
As the overall length of the chain 13 became shorter, the float ball 8 was always separated from the valve seat 9, leaving the outlet 7 open. For this reason, there was a drawback that the amount of wasted washing water used increased. In addition, in the case of the C-shaped chain 13, the wire diameter must be increased in order to obtain a certain degree of tensile strength.
When the wire diameter is increased, the length between individual chains (pitch)
The drawback was that P was long and the amount of washing water could not be finely adjusted. Incidentally, by reducing the wire diameter of the chain 13, the pitch P can be shortened, so that the amount of washing water can be finely adjusted. However, in this case, there was a problem that the tensile strength was insufficient and the chain 13 would break when the operating handle 14 was operated vigorously. Furthermore, water pressure is always acting on the float ball 8, and the normal pressure is 0.5 kgf, and when it is high, a force of 1 to 2 kgf is applied. Therefore, there was a problem in that the float ball 8 cracked and broke at the connecting portion between the chain 13 and the float ball 8. This problem of cutting is likely to occur when the wire diameter is made small, and it is necessary to consider the problem of cutting the chain 13 and the problem of tearing and breaking the float ball 8 at the same time.

[Purpose of invention]

The present invention has been made to improve and eliminate the above-mentioned problems of the conventional art, and is intended to provide a chain connection structure for this type of float valve that can perform reliable and stable operation.

[Means for solving problems]

The means of the present invention for solving the above problems are as follows:
It has a structure in which a float valve installed at the bottom of the wash water storage tank and an operating handle installed on the side wall of the tank are connected by a chain, and a cylindrical bulge is formed on the upper side of the float ball. A rigid cylindrical locking tool is fitted onto the bulge, and the locking tool and the bulge are connected with a pin or the like, and the other end of the chain connected to the operating handle is connected to the bulge. It is connected to the locking tool via a pin material, a connector, etc.

[Effect]

As is clear from the embodiment shown in FIGS. 1 to 3, by connecting the locking device 20 attached to the float ball 18 and the operating handle 14 with the chain 19,
Since the operating force is directly transmitted to the locking device 20, the float ball 18 will not be torn or broken as in the prior art. Also, by using the ball chain 19,
It is possible to prevent the chain itself from becoming entangled, and the float valve 22 is not always open. That is, it is possible to provide a functionally superior float valve 22.

〔Example〕

The configuration of the present invention will be explained below based on the embodiments shown in the drawings. Note that the same reference numerals as in the conventional case represent the same members.

FIG. 1 is a longitudinal sectional view of a wash water storage tank 1 showing an embodiment of the present invention. As shown in the figure, in this embodiment, a cylindrical bulge 21, which is shown enlarged in FIG. A rigid cylindrical locking tool 20 is externally attached to the holder 21 in a forced fit state. After installation, the pin material 23 is inserted through the screw fitting etc., and the bulging part 21 and the locking tool 20 are attached.
and is fixed. A pin member 25 is fitted through the upper side wall 24 of the locking member 20 by screw fitting or the like, and a connector 26 shown in FIG. 3 is attached to the pin member 25. One end of the chain 19 is connected to the slot 27 of the connector 26 by caulking or the like so as not to come off. The other end of the chain 19 is connected to the operating handle 14, as shown in FIG.

With such a connection structure between the float ball 18 and the operating handle 14, the operating force of the operating handle 14 is directly transmitted to the locking tool 20, and is transmitted via the inner peripheral surface joint of the locking tool 20 and the pin material 23. The signal is transmitted to the float ball 18. Therefore, the float ball 18 can receive the operating force on the entire surface of the contact part with the locking tool 20 and the joint part with the pin material 23, and the stress is dispersed, so that the float ball 18 can There is no possibility that the connection part 18 will be torn or broken. This is also because the diameter of the pin material 23 is much larger than in the case of a conventional C-shaped chain, and stress is not locally concentrated. Furthermore, the ball chain 19 is designed to be able to rotate mutually between the balls, and can release twisting etc. by itself.
There is no tangle of the chain itself, and there is no accident such as shortening of the overall length of the chain 19. For this reason, the float valve 22
There is no such thing as being in a constantly open state. Furthermore, in the case of the bead chain 19, since the length (pitch) between the beads is shorter than that of a conventional C-shaped chain, it is possible to finely adjust the overall length of the bead chain 19. That is, the amount of washing water can be finely adjusted.

By the way, the present invention is not limited to the above-described embodiment, and the shape and size of the rigid locking device 20 and the manner of coupling the chain 19 and the locking device 20 can be changed as appropriate. .

[Effect of idea]

As explained above, in the present invention, the chain connecting the float ball and the operating handle does not get entangled, so the overall length of the chain does not become short and the float ball does not remain open. Reliable opening and closing of the valve is possible. Furthermore, since the pitch of the beads is very short, the overall length of the beads can be finely adjusted, and the amount of washing water can be finely adjusted. Furthermore, since the operating force of the operating handle is transmitted to the float ball through the surface contact with the rigid locking tool and the pin connection, there is no possibility of the connecting part of the float ball being torn or broken as in the past. .

[Brief explanation of drawings]

FIG. 1 is a vertical cross-sectional view of a wash water storage tank showing an embodiment of the present invention, FIG. 2 is an enlarged vertical cross-sectional view of a locking device, and FIG. 3 is a perspective view showing the relationship between a connector and a chain. FIG. 4 is a longitudinal sectional view showing a conventional wash water storage tank. 1...Storage tank, 22...Float valve, 14
...Operation handle, 19... Ball chain, 18... Float ball, 20... Locking tool, 23... Pin material,
26...Connector.

Claims (1)

[Scope of utility model registration request] It has a structure in which a float valve installed at the bottom of the wash water storage tank is connected by a chain to an operation handle installed on the tank side wall, etc., and a cylindrical bulge is formed on the upper side of the float ball. A rigid cylindrical locking tool is fitted onto the bulge, and the locking tool and the bulge are connected with a pin or the like, and the other end of the chain connected to the operating handle is connected to the bulge. A chain connection structure for a float valve, characterized in that it is connected to the locking tool via a pin material, a connector, etc.