JPH0246529Y2 - - Google Patents

Description

[Detailed description of the invention] "Purpose of the invention" (Field of industrial application) This invention relates to water storage tanks such as low tanks or high tanks installed in flush toilets (including Western-style toilets, Japanese-style toilets, urinals, etc.). More specifically, the present invention relates to a drive system for starting the supply of toilet bowl cleaning water, etc. to the flush toilet, that is, one equipped with a lifting valve device.

(Conventional Water Storage Tank) FIG. 3 is a front sectional view showing a low tank (hereinafter referred to as a water storage tank) installed in a Western-style toilet (not shown), etc., and reference numeral 1 inside the tank is a lifting valve device. Further, only the valve lifting device 1 is extracted and shown in FIG.

The valve lifting device 1 mainly includes a rotating tool 2 such as a rotary solenoid. In a rotary solenoid, the rotating shaft 2b rotates from the initial state by a set angle (approximately 60 to 80 degrees) in one direction due to the attractive force (or repulsive force) generated by the excitation of the electromagnet, and then de-energizes. As a result, the rotating shaft 2b is configured to return to its original initial state by a restoring force such as a spring (not shown). As shown in FIG. 4, the rotating shaft 2b of this rotating tool 2 has an arm 2a at its end.
is installed. The rotating tool 2 is fixed inside the tank such that the arm 2a extends laterally when the rotating shaft 2b is in the initial state. Further, a float valve 3 is suspended from the tip of the arm 2a via a chain 6. Therefore, when the rotating tool 2 is energized by an appropriate switching operation, the arm 2a rotates A, and the float valve 3, which is in close contact with the water supply valve seat 3a at the bottom of the tank, is pulled up and transferred to the flush toilet. Water for toilet bowl washing etc. will be sent.

By the way, the conventional water storage tank was designed to be able to manually supply toilet bowl flushing water and the like in case of an emergency such as a power outage or a malfunction of the lifting valve device 1. That is, as shown in FIG. 3, the tank side wall 8 is provided with an emergency operation handle 4 that projects outward from the tank. As shown in FIG. 4, an L-shaped operating rod 5 is connected to the back of the operating handle 4, and a midway portion of the chain 6 of the valve lifting device 1 is attached to the tip of the operating lever 5. A chain 7 connected to the chain 7 is suspended. In addition, below, the lift valve device 1
Regarding the chain 6, the upper side of the connection between the operating handle 4 and the chain 7 is referred to as an upper chain 6a, and the lower side of the connection is referred to as a lower chain 6b. Therefore, by rotating the operating handle 4 B, the chain 7 comes to pull up the lower chain 6b of the lifting valve device 1, and the float valve 3 moves to the water supply valve seat 3a.
lifted up from

(Problem to be Solved by the Invention) When the operating handle 4 is operated, the upper chain 6a of the valve lifting device 1 is bent into a smooth curved shape as the links forming the upper chain 6a slide against each other. . On the other hand, when the valve lifting device 1 is operated,
The chain 7 of the operating handle 4 now bends into a smooth curve. However, at this time, the bent chain sometimes became entangled with the other chain (the chain being pulled up). Further, since each chain 6a, 7 is constantly immersed in water stored in the tank, the links become difficult to slip against each other due to corrosion etc. after several years. Therefore, the upper chain 6a or the chain 7 was bent into an angular shape as a whole, and the links were intertwined with each other. Therefore, even if the arm 2a of the valve lifting device 1 or the operating rod 5 of the operating handle 4 is returned to its original standby position (designed water stop position), the float valve 3 remains lifted from the water supply valve seat 3a. Water was constantly flowing from the water storage tank to the flush toilet.
Further, as shown in FIG. 3, the chain 6 of the valve lifting device 1
Since the chain 7 of the operating handle 4 is connected to the middle part thereof, the upper chain 6a is considerably oblique to the vertical direction. Therefore, in order to lift the float valve 3 by a predetermined height, the arm 2a of the valve lifting device 1 must be swung more than the amount by which the float valve 3 is lifted.
1, it is necessary to use a large-sized rotating tool 2 with a large rotation angle and large torque. However, since the inside of the water storage tank is narrow, the lifting valve device 1 equipped with the large rotating tool 2 as described above is not suitable for other tank internal devices (for example, the ball tap 20 in FIG. 3,
The installation position, etc. has become limited due to the overflow pipe 21, etc.), which has also led to restrictions on the external shape of the water storage tank.

The present invention was developed in view of the above circumstances, and even after long-term use, accidents such as water flowing into the flush toilet will not occur.
Another object of the present invention is to provide a new water storage tank for flush toilets (hereinafter referred to as the "proposed tank") whose external shape is not limited by the installation of a lift valve device.

``Structure of the invention'' (Means for solving problems) The gist of the proposed tank is that it is equipped with a lifting valve device for swinging an arm with a float valve suspended at its tip upward from a water stop position. In water storage tanks for flush toilets such as low tanks or high tanks,
An emergency operating handle that protrudes outward from the tank is rotatably provided on the side wall of the tank, and a rotating base of the operating handle is provided eccentrically from the rotational axis of the rotating base, and is connected to the valve lift device. An eccentric rod is connected to the arm.

(Function) The eccentric operating rod that is connected to the arm of the valve lifting device is configured such that the connecting portion (contact portion) with the arm is eccentric from the rotation axis of the emergency operation handle. That is, by rotating the operating handle, the connecting portion of the eccentric rod moves in an arc, thereby swinging the arm of the valve lifting device upward. Therefore, the float valve suspended from the tip of the arm can be lifted from the water valve seat. Also, the operating handle does not itself have a chain for suspending the float valve. That is, in the tank of the present invention, since there is only one chain from which the float valve is suspended, the chain does not become bent in the first place, and there is no possibility of the chain becoming tangled. In addition, since there is only one chain for suspending the float valve, it is possible to position the tip of the arm in the valve lifting device directly above the float valve, so that the chain runs in the vertical direction. . Therefore, the amount of rocking of the arm tip by the valve lifting device is equal to the lifting amount of the float valve, and the valve lifting device can be made compact.

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

FIG. 1 is a plan sectional view showing the main parts of the tank of the present invention, in which reference numeral 9 indicates the front wall of the tank, and 8 indicates the right side wall of the tank. The most distinctive feature of this tank is that there is only one chain for suspending the float valve 3 (only the hanging fitting 6c is shown in the drawing), which extends through both the valve lifting device 10 and the emergency operation handle 4. It is in the point where it is.

The configuration of the valve lifting device 10 is substantially the same as that of the conventional valve lifting device 1 (see FIG. 3), and is mainly composed of a rotating tool 11. Also in this embodiment, a rotary solenoid is used for the rotating tool 11 as in the conventional case. The rotating tool 11 is attached to the tank front wall 9 via an L-shaped bracket 19, and a disc 12 is attached to the end of the rotating shaft 11a. An arm 2a on which a float valve 3 is suspended is attached to the disc 12. In other words,
In this rotating tool 11, the rotating direction of the disc 12 is opposite to that of the conventional rotating tool 2 (see FIG. 3).

The operating handle 4 is attached to the right side wall 8 of the tank and is designed to protrude outward from the tank (in the drawing, the lever portion of the operating handle 4 hangs directly below it, so the lever (parts not shown). A rotary base 4a in the shape of a round bar is integrally formed on the back surface of the operating handle 4, and the rotary base 4a is connected to the right side wall 8 of the tank.
It is fitted into a bearing 13 which is provided through the shaft. In other words, the operating handle 4 is rotatably held relative to the tank right side wall 8.

The eccentric operating rod 14 is obliquely connected to the rotating base 4a of the operating handle 4, and its tip 14a is eccentric from the rotating axis of the operating handle 4. Moreover, the eccentric action rod 14
The protruding end 14a is bent perpendicularly to the arm 2a of the valve lifting device 10, and is inserted into a connecting hole 2c bored in the middle of the arm 2a.

The rotating tool 11 of the valve lifting device 10 is a rotary solenoid as described above, and when it is not energized, the disc 12 can idle in only one direction along its rotating direction. There is. In other words, by rotating the operating handle 4, the tip 14a of the eccentric rod 14 moves upward in a circular arc on the vertical plane inside the tank, thereby pushing up the arm 2a. Therefore, the float valve 3 is lifted from the water supply valve seat 3a (see Fig. 3),
Water is supplied to the flush toilet.

(Study of Another Embodiment) FIG. 2 is a plan sectional view showing the main parts of the tank of the present invention in another embodiment. This embodiment shows a case where the lift valve device 15 is installed apart from the tank side wall 8.
The rotating shaft 16a of the rotating tool 16 in the valve lifting device 15 and the rotating axis of the operating handle 4 are arranged so as to be concentric with each other. The rotating tool 16 of the valve lifting device 15 has a rotating shaft 16a that passes through the main body of the rotating tool and projects to the back side (right side in the drawing) (indicated by reference numeral 16b). Also,
The eccentric rod 17 is bent into a crank shape, and a guide hole 17b for the back side rotation shaft 16b of the rotation tool 16 is bored in the center of the bent portion. The eccentric rod 17 is configured such that its tip 17a contacts the lower end edge of the arm 2a of the valve lifting device 15, and its guide hole 17b is inserted into the rotating shaft 16b of the rotating tool 16. In the operating handle 4 of this embodiment, the rotating base 4a is removable with a screw 18 or the like, and the rotating base 4a is integrally connected to the eccentric rod 17. In the tank of this embodiment, since the eccentric action rod 17 is supported at both ends by the operating handle 4 and the rotating tool 16, it has the advantage that a stable rotating state can be obtained. In addition, the arm 2a of the valve lifting device 15
Since the connection state between the tip end 17a of the eccentric action rod 17 is a mere contact state, there is also the advantage that the operation handle 4 does not move when the valve lifting device 15 is operated independently. .

By the way, in the tank of the present invention, the main component constituting the lifting valve device does not need to be a rotating tool such as a rotary solenoid. For example, a solenoid or a cylinder (not shown) in which a drive shaft linearly extends and retracts may be used. That is, the arm of the valve lifting device is swingably supported at the end opposite to the end on which the float valve is suspended, and the linear drive tool is fixed to the lower central portion of the arm. By arranging the drive shaft of the linear drive tool to face the lower end edge of the arm, the same effect as in each of the embodiments described above can be obtained. In this way, the configuration and shape of the tank of the present invention can be changed as appropriate depending on the embodiment.

"Effects of the invention" As is clear from the above explanation, the water storage tank for flush toilets according to the present invention does not cause accidents such as water being sent to the flush toilet and being left unused even after long-term use. do not have. Furthermore, since a small lifting valve device can be used, there are no limitations on the external shape of the tank. Furthermore, since the connecting structure between the emergency operating handle and the valve lifting device is simple, it is difficult to break down, and the connecting work is simple, and has many excellent advantages.

[Brief explanation of drawings]

Figure 1 is a plan sectional view showing the main parts of the proposed tank;
FIG. 2 is a plan sectional view showing the main parts of another embodiment;
FIG. 3 is a front sectional view showing a conventional water storage tank, and FIG. 4 is a perspective view showing a conventional lifting valve device. 1... Valve lifting device (conventional), 2... Rotating tool, 2a
... Arm, 2b, 11a, 16a ... Rotation axis,
3...Float valve, 4...Operation handle, 4a...
...Rotating base, 8... Tank side wall, 9... Tank front wall, 10, 15... Valve lift device, 14, 17... Eccentric action rod.

Claims (1)

[Scope of utility model registration request] In a water storage tank for a flush toilet, such as a low tank or a high tank, which is equipped with a lifting valve device for swinging an arm with a float valve suspended at the tip upward from a water stop position, a tank side wall protrudes outward from the tank. An emergency operation handle is rotatably provided, and an eccentric operating rod is connected to the rotation base of the operation handle, eccentric from the rotation axis of the rotation base and connected to the arm of the valve lifting device. A water storage tank for a flush toilet.