JPH10165322A - Rain plug opening/closing device for water tank - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve reliability of operation and durability by facilitating a structure of a drain plug opening/closing device which alternately repeats to open/close a drain port by every time of pushing the drain plug. SOLUTION: This device is provided with a one-way cam 9 which has a projecting part (a), a lock part (b), and a gentle slope (c) on either one of a support, shaft member 7 of a drain plug 6 or a raising/lowering guide member 8 for guiding the raising/lowering of the support shaft member, and a contact 10 which is engaged with the one-way cam 9 on the other. In applying a pushing pressure, a drain pod is closed by the drain plug at a position where the contact. 10 is locked to the lock part of the one-way cam 9 and in applying the pushing pressure in the next, the contact 10 disengaged with the lock part is opened in an unlocked position so that the support shaft member 7 and the drain plug 6 are raised to an open position.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drain cock opening / closing device for raising and lowering a drain cock provided at the bottom of a water tank to open and close a drain port. The feature is that the drain port is opened and closed alternately each time the button is pressed.

[0002]

2. Description of the Related Art A conventional drain cock opening / closing device which alternately opens and closes a drain tap every time a drain tap is pressed is disclosed in, for example, Japanese Utility Model Publication No. 61-1827 and Japanese Utility Model Publication 3-9.
587 publication.

[0003]

The above-mentioned prior art device utilizes a horizontal meshing motion between a fixed saw-toothed cam ring and a rotatable saw-toothed cam ring, so that the structure is complicated and the operation is difficult. However, there is a defect that lacks certainty and durability.

[0004] Therefore, in this type of drain plug device, it has been a problem to be solved to simplify the structure, to obtain the reliability of operation, and to provide durability. .

[0005]

SUMMARY OF THE INVENTION Accordingly, the present invention provides a drain cock opening / closing device in which a drain cock provided at the bottom of a water tank is raised and lowered to open and close a drain port. A support shaft is provided on one of a support shaft member and an elevating guide member which is provided in a drain plug attached to the drain port and which is fitted to the support shaft member to guide the support shaft member up and down. A groove-like one-way cam having a protrusion, a hook, and a gentle slope provided at an appropriate position along the ascending and descending direction of the member is provided. On the other hand, the drain plug is opened and closed by engagement with the one-way cam. And a restoring spring is provided between the elevating guide member and the support shaft member to constantly bias the two members apart from each other, so that the drain plug is pressed once. Close and open the drain alternately for each operation There is provided a discharge valve opening and closing device configured aquarium as benefit.

The drain cock opening / closing device constructed as described above, when the drain cock in the open state as shown in FIG. 1 is pushed to the maximum against the restoring spring and released, the restoring process following the stroke shown in FIG. The contact is hooked on the hook of the one-way cam, and the drain plug at the upper end of the support shaft is hooked at the closed position of the drain port. The support shaft, which has been released by being hooked, returns to the position shown in FIG. 1 and keeps the drain port open.

The drain plug device of the present invention repeats the above operation, and alternately opens and closes the drain port every time the drain plug is pressed. According to the present invention configured as described above and configured to operate as described above, a durable drainage plug device having a simple structure, high reliability of operation, and durability compared to conventional products can be obtained. Can be The present invention has solved the above-mentioned problems as described above.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings. In the figure, 1 is a water tank, 2 is a drain port opened at the bottom of the water tank 1, 3 is a drain plug fitted to the drain port 2, 4 is an elbow type mounted between the drain plug 3 and the drain pipe 5. 6 is a drain plug which is fitted from above the drain plug fitting 3 to open and close the drain port 2, 7 is a supporting shaft member which is integrally hung from the center of the back surface of the drain plug 6 to raise and lower the drain plug 6, Reference numeral 8 denotes an elevating guide member provided inside the drain plug 3 to guide the support shaft member 7 up and down.

A groove 9 is provided on one of the support shaft member 7 and the elevating guide member 8 and controls the drain port 2 to be opened and closed alternately each time the drain plug 6 is pressed. The one-way cam 10 has a bifurcated contact 11 provided on the other member so as to engage with the one-way cam 9 and set the open / close position of the drain plug 6. The one-way cam 11 has a support shaft member 7 and a lifting guide member 9. And a coil-shaped restoring spring which is urged in a direction for always separating the two members 9 and 10 from each other.

In the first embodiment shown in FIG. 1, the up-and-down guide member 8 has an upper end supported by a support seat 12 extending from the inner surface of the drain plug 3, and a connecting pipe connected to a lower portion of the drain plug 3. The one-way cam 9 is provided on the inner surface of the elevating guide member 8. The one-way cam 9 is provided on the inner surface of the elevating guide member 8. The bifurcated contact 10 that engages with the one-way cam 9 is rotatably attached by a pin shaft 13 provided on a lower side surface of the support shaft member 7.

In the second embodiment shown in FIG. 2, the lowering guide member 8 is supported at its lower end by a support seat 12 provided at the bottom of the connecting pipe 4 connected to the lower part of the drainage plug 3. The one-way cam 9 is provided on the inner surface of the elevating guide member 8. The one-way cam 9 is provided on the inner surface of the elevating guide member 8. The bifurcated contact 10 that engages with the one-way cam 9 is rotatably attached by a pin shaft 13 provided on a lower side surface of the support shaft member 7.

In a third embodiment shown in FIG. 3, a one-way cam 9 is provided on an inner surface of a cylindrical portion 14 which is continuously and integrally hung below a support shaft member 7, and an elevating guide member 8 is provided with a drain plug 3 The bifurcated contact element 1 is provided in a column shape on a support seat 12 extending from the inner surface of the cylindrical member 14 so as to be fitted to the inner surface of the cylindrical portion 14 and engages with the one-way cam 9.
Numeral 0 is attached by a pin shaft 13 provided on the upper side surface of the lifting guide member 8.

In a fourth embodiment shown in FIG. 4, a one-way cam 9 is provided on an inner surface of a cylindrical portion 14 which is continuously and integrally hung below a support shaft member 7, and a vertically moving guide member 8 is provided with a drain plug 3 A bifurcated type which is provided upright in a columnar shape on a support seat 12 provided at the bottom of the connecting pipe 4 connected to the lower part of the connecting pipe 4 and is fitted to the inner surface of the cylindrical portion 14 and engages with the one-way cam 9. The contact 10 is mounted on a pin shaft 13 provided on an upper side surface of the lifting guide member 8.

Next, the opening and closing operation of the drain plug 6 by the one way cam 9 and the contact 10 provided in each embodiment will be described with reference to FIG. As shown in FIG. 5A, when the contact 10 is vertically engaged at the upper end of the one-way cam 9, the support shaft member 7 of each embodiment is separated from the lifting guide member 8 at the maximum. The drain plug 6 is being raised and urged by the restoring spring 11 to open the drain port 2.

When the drain plug 6 is pushed down against the restoring spring 11, as shown in FIG. 5 (b), one end of the bifurcated contact 10 is fitted to the projection a provided at the bottom of the one-way cam 9. When the hand is tilted and released, and the hand that has been depressed is released, the other end of the contact 10 comes into contact with the engaging portion b provided on one side of the one-way cam 9 in the upward stroke, and FIG. As shown in FIG. 7, the contact 10 is hooked on the hook b. The drain plug 6 of each embodiment is set such that the hooked position is the closed position of the drain port 2.

Next, when the drain plug 6 is pressed for opening, the contact 10 moves in the descending stroke to the gentle slope of the one-way cam 9 provided on the side edge opposite to the hook b. The other end is guided by the portion c and descends while changing the posture to the side, and the protrusion a
Without reaching the bottom of the one-way cam 9 as shown in FIG.

At this time, when the hand that depresses the drain plug 6 is released, the contact 10 that changes its posture to the side and rises,
(e) As shown in (e), it is inverted by coming into contact with the hook portion b, and is inclined in the opposite direction to the previous one, and the other end is gradually raised by guiding the other end to the gentle slope portion c to continue rising. In FIG.
Return to the position shown in (a) and maintain the open state.

The one-way cam 9, the contact 10 and the restoring spring 11, which operate as described above, are connected to the respective support shaft members 7.
The drainage plug device of each embodiment provided with the lift guide member 8 repeatedly performs an operation of alternately opening and closing the drainage port 2 every time the drainage plug 6 is pressed.

The present invention is mainly provided in a water tank, such as a wash basin, which is relatively shallow and easily accessible to a drain cock, but it is needless to say that the present invention can also be applied to a bath tub or the like. Also, the design of the support shaft member 7, the elevating guide member 8, the one-way cam 9, the contact 10 and the restoring spring 11 may be changed in accordance with the gist of the present invention, and it is needless to say that the present invention is not limited to the illustrated embodiment. Nor.

[0020]

According to the present invention constructed as described above and operated as described above, a drain plug having a simple structure, high reliability of operation and high durability as compared with conventional products. There is a very good effect that the device can be obtained.

[Brief description of the drawings]

FIG. 1 is a partially cutaway elevational view showing a first embodiment of the present invention.

FIG. 2 is a partially cutaway elevation view of a second embodiment.

FIG. 3 is a partially cutaway elevational view of a third embodiment.

FIG. 4 is a partially cutaway elevational view of the fourth embodiment.

5 (a), 5 (b), 5 (c), 5 (d) and 5 (e) are explanatory views showing the operation of the one-way cam, the contact and the restoring spring.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 water tank 2 drain port 3 drain plug 4 connecting pipe 5 drain pipe 6 drain plug 7 support shaft member 8 elevating guide member 9 one way cam 10 contact 11 restoring spring 12 support seat 13 pin shaft 14 cylinder portion a protrusion b lock Part c gentle slope

Claims (5)

[Claims] 1. A drain cock opening / closing device in which a drain cock provided at a bottom of a water tank is moved up and down to open and close a drain port.
A support shaft member that hangs down from the back surface of the drain plug, and an elevating guide that is provided in a drain plug fitting attached to the drain port and that fits with the support shaft member to guide the support shaft member up and down. One of the members is provided with a groove-like one-way cam in which a projection, a hook, and a gentle slope are disposed at appropriate positions along the elevating direction of the support shaft member, and the other is engaged with the one-way cam. In some cases, a bifurcated contact for holding the drain plug in the closed position and the open position is provided, and a restoring spring that constantly urges the two members between the elevating guide member and the support shaft member in a direction to separate the two members is provided. A drain plug opening / closing device for a water tank, wherein the drain plug is alternately closed or opened each time the drain plug is pressed once. 2. The elevating guide member, the upper end of which is supported by a support seat extending from the inner surface of the drain plug, is suspended in a connecting pipe connected to a lower portion of the drain plug, and the one-way cam is provided. 2. The water tank according to claim 1, wherein the bifurcated contact for engaging with the one-way cam is provided on a lower portion of the support shaft member. Drain tap opening and closing device. 3. The one-way cam, wherein the lifting guide member is supported at a lower end by a support seat provided at a bottom of a connecting pipe connected to a lower portion of the drain plug, and is erected below the drain plug. 2. The water tank according to claim 1, wherein the bifurcated contact for engaging with the one-way cam is provided on a lower portion of the support shaft member. Drain tap opening and closing device. 4. The one-way cam is provided on an inner surface of a cylindrical portion that hangs continuously below the support shaft member, and the elevating guide member is provided on a support seat extending from an inner surface of the drainage plug. The bifurcated contact, which is provided upright in a columnar shape and is fitted to the inner surface of the cylindrical portion and engages with the one-way cam, is attached to an upper portion of the elevating guide member. The drain valve opening / closing device for a water tank according to claim 1, wherein 5. The one-way cam is provided on an inner surface of a cylindrical portion that continuously hangs below a lower portion of the support shaft member, and the elevating guide member is a bottom portion of a connecting pipe connected to a lower portion of the drain plug. The bifurcated contact, which is provided upright on the support seat provided in the shape of a column and is fitted to the inner surface of the cylindrical portion and engages with the one-way cam, is mounted on the upper part of the elevating guide member. 2. The drainage cock opening / closing device for a water tank according to claim 1, wherein