JPH0344858Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an opening/closing device for a low tank.

[Problems to be solved by conventional technology and ideas] Conventionally, in a low tank, water supply operation and drainage operation were each provided as independently formed devices, and these devices were each installed separately in the low tank. , each operates individually to supply and drain water as the amount of water in the low tank increases or decreases, i.e., the low tank drain valve is structured to be closed when all the water in the low tank is drained as the water level falls. The water supply valve has a structure in which the tip of a rod provided on the float is connected to the water supply valve, and when the water level in the low tank reaches a predetermined level, the water supply valve is closed as the float rises. Therefore, when draining a low tank, a certain amount of water stored in the tank is completely discharged in one drain operation with this kind of conventional low tank opening/closing device. It is not possible to adjust the amount of drainage as needed, making it impossible to save water, and the tank drain valve is operated by a chain, which often gets tangled and makes it impossible to open and close the drain valve. In addition, since the float does not have a guide, it moves sideways and comes into contact with the tank, making it unable to function normally and making it impossible to open and close the faucet.

In order to eliminate the above-mentioned drawbacks, the present invention opens the bottom surface, provides a water supply port on the top wall, and has a vertical hole and a plurality of through holes drilled from approximately the center height position to the bottom end in the side wall. a cylinder formed by a cylinder, a water supply valve installed at the upper end of the interior of the cylinder to open and close the water supply port, a tank drain plug, and a tank drain plug integrally formed at the lower end, and a water supply valve installed at the upper end of the inside of the cylinder to open and close the water supply port, and the tank drain plug is integrally formed at the lower end, and an operating lever that allows the tank drain plug to move up and down inside the cylinder; a float that moves up and down inside the cylinder; a stopper provided on the lower surface of the float; and an operation lever that engages the stopper of the float. The lever has a plurality of concave portions continuously provided on the inner surface of the lever, and when the low tank is full of water, the stopper is tilted downward at a predetermined angle to engage the tip of the stopper with the upper edge of the vertical hole of the cylinder. Provided is an opening/closing device for a low tank, in which the tip of the stopper is engaged with the concave part of the operating lever at a position where the stopper becomes horizontal as the float descends due to water reduction in the low tank; This allows complete water supply and drainage inside the tank and adjustment of the amount of drainage.

[Means for Solving the Problems] An example of the implementation of the present invention will be described below with reference to the drawings. A cylinder 9 is installed upright surrounding a drain port 3 provided in a low tank 1, and this cylinder 9 has an upper wall. The cylinder 9 is fixed to the bottom wall of the low tank 1 by surrounding the drain port 3 with the open bottom surface and standing upright. A valve chamber 14 partitioned by a partition wall 14a is formed, and a water supply valve 11 is provided in this valve chamber 14, and the water supply valve 11 has flanges 11b, 1 at both ends of a shaft portion 11a.
1b', and the water supply valve 11 connects to the shaft portion 11a through a communication port 14b provided in the partition wall 14a.
is inserted, one flange 11b opens and closes the water supply port, and the other flange 11b' opens and closes the communication port 14b.
The water supply valve 11 is installed so as to elastically keep the water supply port 10 closed by a spring 13 inserted into the shaft portion 11a, and the water supply valve 11 is installed on the side wall of the cylinder 9 from a substantially central height position. The operating lever 4, which is formed by vertically elongated holes 15, 15' drilled at the lower end and a plurality of through holes 1, and whose shaft rod is bent into a U-shape, has tank drain plugs 2 integrally at both ends. The operating lever 4 is installed so that the tank drain plug 2 can be moved up and down inside the cylinder 9 through the longitudinal hole 15 of the cylinder 9,
A float 7 that moves up and down is installed between a and the tank drain plug 2, and two stoppers 8 are pivotally installed on the underside of the float 7. The stopper 8 is tilted downward at an angle and spread out from each other in a figure eight shape.
The tip of the control lever 4 is positioned to engage with the longitudinal hole 15 of the cylinder 9, and the inner surface of the operating lever 4 is provided with a plurality of recesses 5 for engaging the stopper 8 of the float 7. 7, the stoppers 8 are pulled upward, and when the stoppers 8 are in a horizontal position, the tips of these stoppers 8 are locked in predetermined recesses 5 of the operating lever 4. Configure it as follows.

Reference numeral 17 denotes a guide tube for vertically guiding the operating lever 4 up and down along the longitudinal hole 15 of the cylinder 9, and is fixedly installed at a position on the extension line of the longitudinal hole 15 at the upper end of the side wall of the cylinder 9. The operating lever 4 is inserted so that it can be moved up and down.

[Function] Since the present invention has the above-described configuration, the inside of the cylinder 9 is connected to the water surface of the low tank 1 and the water surface inside the cylinder 1 through the many through holes 16 and the vertical holes 15 bored in the side wall. keep the same.

As shown in FIG. 3, the water supply port 10 is opened by pushing up the water supply valve 11 by the return force of a spring 13 provided in the water supply valve 11 provided in the valve chamber 14 and the buoyancy of the float 7. The flange 11b is brought into close contact with the water supply port 10 to shut off water. When the float 7 separates from the water supply valve 11 due to the descent of the float 7 as the water in the low tank 1 decreases, the water supply port 10
The water pressure acts to supply water while opening the water supply valve 11 against the return force of the spring 13.

To open and close the drain plug 2, as shown in FIG. 4, by pulling up the operating lever 4, the drain plug 2, which is integrally provided at the lower end of the operating lever 4 through the vertical hole 15, is opened and closed. When the cylinder 9 is removed from the drain port 3 and raised to a desired height, the cylinder 9 is opened, and when the float 7 descends as the water in the tank decreases, the two stoppers 8 move upward. was lifted up, and
When these stoppers 8 are positioned horizontally, the tips of the stoppers 8 are aligned with the longitudinal holes 1 of the cylinder 9.
5, the drain plug 2 is engaged with an arbitrary concave portion 5 of the operating lever 4, and the drain plug 2 is lowered within the cylinder by the weight of the float 7 as the float 7 descends, and the plug is closed at the same time as draining is completed. do.

The amount of water drained in one operation of opening and closing the drain plug 2 is determined by the magnitude of the operation of the operating lever 4. That is, if the movement of the operating lever 4 is small, the stopper 8 of the float 7 will engage with the recessed part 5 located above the operating lever 4, and the amount of water discharged will be small. The stopper 8 of 7 engages with the concave portion 5 at the lowest end of the operating lever 4 and can discharge the entire amount of water in the low tank 1. Therefore, by selecting the operating range of the operating lever 4, the amount of water discharged can be adjusted. can be adjusted freely.

[Effects of the invention] Therefore, the present invention provides a low tank opening/closing device in which a water supply device and a drainage device are installed as a unit inside a cylinder, and the water supply and drainage are operated by raising and lowering a float provided inside the cylinder. Compared to a low tank, the amount of water discharge can be selected very easily, making it easy to save water.Moreover, not only can the supply and drainage operation be performed completely reliably, but the float and operating lever are linked together, making it easy to save water. Since the drain port is formed in a structure that opens and closes, it has the advantage of being able to completely eliminate the problem of water leakage.

[Brief explanation of drawings]

The figures relate to the present invention: Figure 1 is a perspective view of the main body of the device, partially cut away, Figure 2 is a perspective view of the control lever with the drain valve integrated, and Figure 3 is a low tank full of water. Fig. 4 is a longitudinal cross-sectional view of the main body of the device shown in the state in which water is being drained, and Fig. 5 is a state in which the drain plug is closed when the water in the low tank is completely drained. FIG. 6 is an enlarged sectional view of essential parts showing the relationship between the stopper, the cylinder, and the operating lever. 1... Low tank, 2... Drain plug, 3... Drain port, 4... Operating lever, 5... Groove, 7... Float, 8... Stopper, 9... Cylinder, 10
... Water supply port, 11 ... Water supply valve, 15 ... Vertical hole,
16...Through hole.

Claims (1)

[Scope of utility model registration request] A cylinder having an open lower surface, a water supply port provided in the upper wall, and a vertically elongated hole drilled from approximately the center height position to the lower end and a plurality of through holes in the side wall, and an upper end inside the cylinder. A water supply valve installed in the cylinder to open and close the water supply port, a tank drain plug, and a tank drain plug integrated at the lower end, and the tank drain plug can be freely raised and lowered into the inside of the cylinder through a vertically elongated hole in the cylinder. an operating lever for lifting the cylinder; a float for lifting and lowering the inside of the cylinder;
The stopper has a stopper provided on the lower surface of the float, and a plurality of recesses continuously provided on the inner surface of the operating lever for engaging the stopper of the float, and the stopper In this state, tilt downward at a predetermined angle so that the tip of the stopper engages with the upper edge of the vertically elongated hole of the cylinder, and place the tip of the stopper in a position where the stopper becomes horizontal as the float descends due to water reduction in the low tank. An opening/closing device for a low tank, characterized in that the opening/closing device is arranged to engage with a recessed portion of an operating lever.