JPH0712458Y2 - Drain plug device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to a drain plug device used in a bathtub, a washbasin, or the like. More specifically, it relates to an improvement in the structure relating to the size of the drain plug device.

[Prior Art] Conventionally, as a drain plug device, for example, one shown in FIG. 3 is known.

In this conventional drain plug device, a support member 2 is fitted and fixed to a mounting hole 12 formed in a bottom portion 11 of a tank 1 such as a bathtub to form a drain port 3. Is configured to open and close.

The opening / closing of the stopper lid 4 is performed by remote control, and a linear body 15a such as a wire connected to an operation unit (not shown) provided at a spaced position such as the upper edge of the tank 1 is connected. The release 5 which is wrapped with the outer tube 15 is adapted to open and close the stopper lid 4 through the support shaft 6 and the guide tube 7.

The support shaft 6 is fixed to the lower portion of the stopper lid 4, and the tip of the release 5 is connected to the lower end thereof.

The release 5 is provided with a mounting body 25 screwed to the bottom of the guide tube 7 at the tip of the outer tube 15 described above.
The plunger 35, which is integrated with the linear body 15a from the inside, protrudes and retracts toward the support shaft 6.

The guide cylinder 7 is fixed to the support member 2 and supports the support shaft 6 so as to be vertically movable.

In addition, between the support shaft 6 and the guide cylinder 7, a thrust lock mechanism that locks the support shaft 6 at one end side of its up-and-down movement path and then unlocks this lock to enable alternate continuous up-and-down movement (Fig. (Not shown) is meshingly assembled.

[Problems to be Solved by the Invention] In detail, such a drain plug device includes an outer tube 15
The mounting body 25 provided at the tip is screwed to the bottom of the guide cylinder 7, and the plunger 35 and the outer tube are mounted in the mounting body 25.
The linear body 15a in 15 is integrally connected to the mounting body 25
If the sliding resistance of the inner space is increased, the linear body 15 of the curved arrangement portion
Since the plunger 35 does not return to the predetermined position only by the return spring force of the release 5 synergistically with the sliding resistance of a, the plunger through hole 25a in the mounting body 25 is made larger and the sliding resistance at that portion is increased. I try not to occur.

Therefore, when a large reaction force (3 kg to 5 kg) generated from the water pressure and the operating pressure at the time of opening the support shaft 6 against the water pressure acting on the stopper lid 4 acts on the plunger 35, the space inside the mounting body 25 described above becomes large. Due to the clearance of a certain plunger through hole 25a, the same plunger 35 is inclined and bent outward from the axial line of the support shaft 6 around the connecting portion with the linear body 15a, and the thrust lock mechanism (not shown) is bent. There was a problem that would hinder smooth operation.

Further, since a thrust lock mechanism (not shown) is meshed between the support shaft 6 and the guide cylinder 7, the tip of the release 5 has to be connected to the lower end of the support shaft 6, and as a result, The length ha from the lower part of the guide cylinder 7 to the curved disposition part of the release 5 becomes long, and accordingly, the mounting height Ha from the bottom 11 of the tank 1 to the bottom of the support member 2 becomes high, so that construction and transportation are possible. There is also a problem in that various inconveniences occur in terms of the above.

The present invention has been made to solve such a problem, and its purpose is to extend the length from the lower portion of the guide cylinder to the curved disposition portion of the release without impairing the smooth operation of the thrust lock mechanism. It is an object of the present invention to provide a drain plug device that can be shortened in height to reduce the mounting height.

[Means for Solving the Problems] In order to achieve the above-mentioned object, the drain plug device according to the present invention employs the following means.

That is, a stopper lid that opens and closes the drain outlet, a support shaft provided at the bottom of the stopper lid, and a guide tube that supports the support shaft so as to be vertically movable,
A release that applies vertical power to the support shaft and an alternate continuous vertical motion that is engaged between the support shaft and the guide cylinder and locks the support shaft at one end of its vertical movement path and then releases this lock. In a drain plug device having a thrust lock mechanism that enables a guide hole, the support shaft is provided with an insertion hole extending in the axial direction from its lower end, and the base of a cylindrical plunger guide integrally provided at the release tip is guided. The gist is that it is detachably attached to the bottom of the cylinder and the plunger guide is inserted into the insertion hole.

[Operation] According to the above technical means, there is the following operation.

The support shaft is smoothly moved in the vertical direction via a plunger guide inserted into an insertion hole extending in the axial direction from the lower end of the support shaft. Also, the plunger guide linearly guides the plunger that tries to tilt with a large reaction force when opening the support shaft that raises the support shaft against the water pressure acting on the cap lid, and smooth operation of the thrust lock mechanism such as buckling is performed. It does not create a factor that hinders

In addition, the release tip plunger inserted through the insertion hole is connected above the lower end of the support shaft, so that the mounting height Ha can be reduced.

[Advantage of the Invention] As described above, according to the present invention, the support shaft is provided with the insertion hole extending in the axial direction from the lower end thereof, and the base of the cylindrical plunger guide integrally provided at the release tip is provided at the bottom of the guide cylinder. Removably attached, insert the plunger guide into the insertion hole,
The plunger guide linearly guides the plunger that tries to tilt with a large reaction force at the time of opening, which raises the support shaft against the water pressure acting on the cap lid, so that it does not buckle or tilt. Since it guides you in a straight line,
The thrust lock mechanism can always be operated smoothly.

Moreover, as a result of the support shaft being supported by the plunger guide inserted into the insertion hole, the support shaft is 2 with respect to the top and bottom of the guide cylinder.
Since it is supported so that it can move vertically in a stable manner, highly accurate vertical movement is expected, and durability reliability can be greatly improved.

Further, since the length is shortened and the mounting height is lowered, the protruding portion from the tank such as a bathtub is reduced, and it is possible to prevent various problems in terms of construction, transportation, etc. from occurring. .

[Embodiment] An embodiment of the drain plug device according to the present invention will be described below.

1 and 2 show an embodiment of the drain plug device according to the present invention.

In this embodiment, the basic structure of the conventional example shown in FIG. 3 is used as it is, and the support shaft 6 and the release 5 are used.
It is characterized by the improvement of the linkage structure with.

That is, as shown in FIG. 1, the support shaft 6 is formed with an insertion hole 61 extending from the lower end thereof in the axial direction of the inside, and the plunger 51 at the tip of the release 5 is inserted into the insertion hole 61.

The plunger 51 at the tip of the release 5 is inserted into the insertion hole 61 so as to be fitted in the thin tubular plunger guide 52, and the lower portion of the plunger guide 52 is fixed to the lower surface 71 of the guide cylinder 7 by screw engagement. Has been done.

Further, the release 5 is curved and arranged directly below the guide cylinder 7. Such a structure of the insertion hole 61 and the like can be easily modified by improving the surroundings of the support shaft 6 of an existing product such as the conventional example shown in FIG.

The guide tube 7 is provided with a flange 72 on the upper part thereof, and the flange 72 is detachably attached to the support member 2 with a screw 73 for easy maintenance and inspection.

Further, FIG. 1 shows a thrust lock mechanism 8 which is not shown in FIG. 3 of the above-mentioned conventional example.

This thrust lock mechanism 8 is a fixed ring on the support shaft 6 side.
81, the rotating ring 82, and the guide portion 83 on the guide cylinder 7 side are engaged with each other.

The fixing ring 81 is fixed to the support shaft 6, has serrated teeth at the upper portion, and has several protrusions on its side portions.

The rotary ring 82 is rotatably fitted to the support shaft 6,
The lower part has serrated teeth that match the serrated teeth of the fixing ring 81, and has several protrusions on its side parts.

The guide portion 83 is formed on the inner wall of the guide cylinder, and has a groove into which the protrusions of the fixed ring 81 and the rotary ring 82 are inserted, and serrated teeth. For this reason, by pushing the support shaft 6 by the plunger 51 at the tip of the release 5, the support shaft 6 can be locked at one end side of its vertical movement path, and then the lock can be unlocked alternately and continuously. (Not shown)
By this operation, the stopper lid 4 fixed to the upper end 62 of the support shaft 6 via the release 5 can be alternately opened and closed.

According to such an embodiment, since the plunger 51 at the tip of the release 5 has entered the support shaft 6 together with the plunger guide 52, the support shaft 6 is raised against the water pressure acting on the stopper lid 4. The plunger guide 52 linearly guides the plunger 51, which tends to tilt with a large reaction force when the plug is opened, so that the plunger 51 does not buckle or tilt, so that the thrust lock mechanism 8 is always smooth. Can be activated. As a result of the support shaft 6 being supported by the plunger guide 52 inserted into the insertion hole 62, the support shaft 6 is stably supported vertically at two points with respect to the top and bottom of the guide cylinder 7, High-precision vertical motion is expected, and durability and reliability can be greatly improved. The release 5 can be curvedly arranged directly below the guide cylinder 7, and the length hb from the lower portion 71 of the guide cylinder 7 to the curved arrangement portion of the release 5 is shorter than the length ha of the conventional example. The mounting height Hb from the bottom 11 of the tank 1 to the bottom of the support member 2 is lower than the mounting height Ha of the conventional example.

For this reason, not only the smooth operation of the thrust lock mechanism 8 can be expected, but also the protruding portion of the tank 1 to the outside is reduced, and damage caused by touching during transportation, inconvenience of packaging, etc. is eliminated, and at the time of construction. It is no longer necessary to adjust the height of the legs 13 of the tank 1 and it is possible to prevent various problems in terms of construction, transportation and the like due to the projection of the tank 1 to the outside.

[Brief description of drawings]

FIG. 1 is a sectional view showing a first embodiment of a drain plug device according to the present invention, FIG. 2 is a sectional view including a peripheral portion of FIG. 1, and FIG. 3 is an enlarged sectional view showing a conventional example. DESCRIPTION OF SYMBOLS 1 ... Tank, 51 ... Plunger 3 ... Drainage port, 61 ... Insertion hole 4 ... Stopper lid, 74 ... Guide part 5 ... Release, 52 ... Plunger guide 6 ... Support shaft, 7 ... Guide tube 8 ... Thrust lock mechanism

Claims (1)

[Scope of utility model registration request] 1. A stopper lid for opening and closing a drainage port, a support shaft provided at a lower portion of the stopper lid, a guide cylinder for supporting the support shaft so as to be vertically movable, and a release for applying vertical power to the support shaft. Drainage with a thrust lock mechanism that is engaged between the support shaft and the guide tube and that locks the support shaft at one end of its vertical movement path and then releases the lock In the stopper device, an insertion hole extending in the axial direction from the lower end of the support shaft is provided, and the base of a cylindrical plunger guide integrally provided at the release tip is detachably attached to the bottom of the guide cylinder. Is inserted into the insertion hole.