JPH0726464Y2 - Drain plug device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to improvement of a drain plug device.

(Prior Art) B shown in FIG. 7 is a drain plug device (Application No. 2-10877) filed by the applicant of the present application on February 5, 1990.

This drain plug device B fits and fixes a substantially cylindrical drain port metal fitting 103 in the metal fitting mounting port 102 of the bottom 101 of the water tank, and at the bottom of this drain port metal fitting 103, a connection joint which becomes a joint of a drain pipe. 104 is screw-connected, and the drain port 10 of the drain port fitting 103 is connected.
5, a stopper lid 106 that is fitted in an openable and closable state up and down is held by a thrust lock mechanism 107 that is fixedly attached to a support body 110 that projects in the drainage port so that it can be opened and closed. The thrust lock mechanism 107 and the operating lever 108 installed at an arbitrary location are connected by a release wire 109, and the opening / closing of the stopper lid is remotely controlled by the operating lever. Then, the thrust lock mechanism 107 and the release wire are attached to the connection joint 104 of the thrust lock mechanism 107 by connecting and installing the connection joint 104 to the drain fitting 103 before connecting the connection joint 104 to the drain fitting 103. The feature is that 109 can be easily assembled.

(Problems to be Solved by the Invention) In the drain plug device B described above, the metal fitting mounting port 102 of the water tank bottom 101 is connected to the collar portion 1 of the upper edge of the drain metal fitting 103 in order to simplify the mounting structure.
03a and a flange 104a at the upper edge of the connecting joint are clamped from above and below to be fixed to the fitting mounting port 102 of the water tank.

However, when the water tank is pottery, the thickness dimension A of the metal fitting mounting port 102 often has a manufacturing error of about ± 6 mm. In particular, if an error occurs such that the dimension A becomes large, the connection joint 104 and the thrust lock mechanism 107 are fixed at the position moved downward. In this case, the stop position of the stopper lid 106, which is supported by the thrust lock mechanism 107 so as to be openable and closable up and down, also moves downward, and the opening area between the outer periphery of the stopper lid 106 and the upper edge of the drain outlet 105 decreases. Therefore, it may not be possible to secure sufficient drainage.

According to the present invention, in the drain plug device having the above-described structure, the plug cover opening means is provided by adjusting the opening position of the plug lid which is vertically displaced due to an error in the thickness of the metal fitting mounting opening. The objective is to secure a predetermined opening area and obtain the desired drainage amount.

(Means for Solving the Problems) In order to solve the above-mentioned problems, the drain plug device of the present invention is configured such that a substantially cylindrical drain outlet fitting is fitted in the fitting mounting opening at the bottom of the water tank, and Connect the fitting to be the fitting of the drainage pipe to the lower part by screwing, and hold the fitting attachment port at the bottom of the water tank with the flange part at the upper end of the drainage fitting and the flange at the upper end of the connection fitting, and the drainage opening of the drainage fitting. The plug lid, which is fitted in the state of being vertically openable and closable, is held so as to be locked in the opened and closed state by the thrust lock mechanism attached and supported inside the connection joint through the support body. In a drain plug device in which a release wire is used to connect with an operation lever installed at an arbitrary location and the opening / closing of the lid is remotely operated by the operation lever, the support body of the thrust lock mechanism can be moved vertically with respect to the inner circumference of the connection joint. To It is screwed.

(Operation) According to the above means, the drainage fitting and the connection joint are screwed together and fixed by holding the fitting fitting opening at the bottom of the water tank between the flanges of the upper edge portion from above and below. .

The thrust lock mechanism that locks the lid in the opened and closed states is mounted and supported inside the connection joint via the support,
The support is screwed onto the inner circumference of the connection joint so as to be vertically movable.

Therefore, when the support body is rotated, the thrust lock mechanism and the stopper lid are moved up and down in the drainage opening, so that the opening area of the drainage opening when the stopper lid is in the opened state is changed.

(Effects of the Invention) As described above, the present invention is configured such that the opening position of the stopper lid can be moved up and down by screwing the support body for mounting and supporting the thrust lock mechanism onto the inner circumference of the connection joint. It was done. Therefore, even if an error occurs in the thickness dimension of the metal fitting mounting opening at the bottom of the water tank and the opening position of the stopper lid is changed downward or upward, the stopper is opened by rotating the support in the forward and reverse directions. By adjusting the position of the plug up and down, it is possible to secure a constant opening area of the drainage port, and thereby a predetermined amount of drainage can be realized.

Further, since the thrust lock mechanism is mounted inside the connection joint as in the conventional one, the work of assembling the thrust lock mechanism and the release wire can be easily performed.

Embodiment An embodiment of the present invention will be described below with reference to the drawings.

Drain plug device shown in Figure 1 is intended to be installed against the drain outlet of the water tank of the washing unit a like example, water outlet fitting 1 and the to be mounted placed metal mounting opening a ₁ shampooing device a Installed on the connection joint 2 that fits and connects to the bottom of the metal fitting 1, the thrust lock mechanism 3 that holds the plug lid 4 that is fitted to the drainage port b so that it can be opened and closed vertically, and the upper edge surface a ₂ of the hair washer a. Release wire 5
The operating lever 6 for remotely operating the thrust lock mechanism 3 via a and 5b is basically configured.

The drainage fitting 1 is a tubular body having a drainage opening b formed therein by being fitted into the fitting fitting opening a ₁ at the bottom of the hair washer a, and fitted into the fitting fitting opening a ₁ from above. The metal fitting mounting opening a ₁ of the hair washer a is packed into the packing 8a by the collar portion 1a provided around the upper end opening of the drainage fitting 1 and the connection fitting 2 screwed on the outer circumference of the lower end of the fitting 1 and the flange portion 2a at the upper end. It is attached and fixed by holding it from above and below via 8b.

As described above, when the lower side of the drainage fitting 1 is tightened by using the upper end of the connection joint 2, a nut dedicated to tightening the fitting 1 is not required, and the number of parts can be reduced.

Further, a projection piece 1b to be inserted into a notch 10b of a support body 10 which will be described later is formed at one position of the lower end mouth edge of the drainage fitting 1.

The connection joint 2 threadedly connected to the lower portion of the drainage fitting 1 has a female screw portion 2b which is threadedly connected to the outer circumference of the lower end of the drainage fitting 1, as described above, to be relatively long. At the same time, the outer diameter of the metal fitting 1 is gradually reduced toward the lower part, and the drain pipe c is connected to the lower end of the metal fitting 1 to connect the drain port b and the drain pipe c.

A support body 10 for mounting and supporting the thrust lock mechanism 3 is screwed onto the threaded portion 2b on the inner circumference of the connection joint 2.

As shown in FIGS. 3 and 4, the support body 10 is a ring body in which a support piece 10a is projectingly formed at a position opposite to the inner peripheral portion, and the outer peripheral surface of the support body 10 is screwed into the screw portion 2b of the connection joint 2. Screw part 10c
And a notch 10b is provided at one location on the outer peripheral portion.

The support 10 is screwed into the upper end of the connection joint 2 and the female screw portion 2b before connecting the connection joint 2 to the drainage fitting 1, and the thrust lock mechanism 3 is screwed into the support member 10 with the screw 9. Stop and install.

In the thrust lock mechanism 3, a support shaft 3b that supports the stopper lid 4 from below is vertically slidably fitted along the center portion of the cylindrical outer case 3a, and is pushed and pulled by the lower end of the support shaft 3b. The rod 3c is connected, and further, the release wire 5a for connection is connected to the lower end of the push-pull rod 3c via the rotating portion 3e which is freely rotatable by 360 °. Then, the thrust lock mechanism 3 includes the support shaft 3b.
The push-pull rod 3c and the support shaft 3b are provided by the engaging structure 3d of the meshing body integrated with the meshing part formed on the inner peripheral surface of the outer case 3a.
Each time the release wires 5a and 5b are pushed, the spindle 3
b) is locked at the upper end (opening side) and the lower end (closing side).

A hair catcher 7 is provided in the drainage fitting 1. The hair catcher 7 is formed in a substantially mesh shape so that the hair etc. flowing into the drainage port b can be hooked, and can be slid up and down while the guide surface 7a formed on the peripheral surface is in contact with the inner circumference of the metal fitting 1. It is fitted inside and is supported from below by the support shaft of the thrust lock mechanism 3.

Further, the lower end of the support rod 4a of the plug lid 4 fitted to the drainage port b is fixed to the central portion of the hair catcher 7, and the hair catcher 7 is attached to the inner peripheral surface of the drainage fitting 1 as described above. The stopper lid 4 can be opened or closed by sliding vertically along the stopper lid 4.

Further, at the upper end of the support rod 4a, as shown in FIG. 5, a steady rest piece is formed by projecting three guide pieces from the central portion toward the outer periphery.
Each of the three guide pieces protruding from the center portion of the steady rest 11 to the outer periphery is attached to the inner surface of the drainage fitting 1 in the same manner as the guide surface 7a of the hair catcher 7 described above. By sliding vertically while making contact, the upper part of the support rod 4a is prevented from touching and the vertical movement of the stopper lid 4 is made smooth.

The release wire 5 that connects the thrust lock mechanism 3 and the operating lever 6 is provided with a push rod 3c of the thrust lock mechanism 3.
The drain wire 1 includes a release wire 5a for connection in the section from the lower end to the insertion hole 2c on the peripheral surface of the connection joint 2a and a connection release wire 5a on the operation lever 6 side.
After connecting the connection joint 2 with respect to, the outer pipes of both wires are screwed and connected at the connection point 5c protruding to the outside of the insertion hole 2c, and the wire wires are connected.

When connecting the connecting joint 2 to the drain fitting 1, the connecting end of the release wire 5a is projected from the insertion hole 2c of the connecting joint 2 as shown in FIG. 1
Insert the projection piece 1b at the lower end into the notch 10b of the support body 10 and latch it, and from the positional relationship in which the screw pitches of both 1 and 10 are matched,
The connection joint 2 is screwed onto the drainage fitting 1 while rotating, and tightened until the collar portion 2a of the fitting 2 comes into contact with the lower surface of the fitting fitting a ₁ of the hair washer a.

As described above, while the connection fitting 2 is being rotated, the drainage fitting 1 and the connection fitting 2 are screw-connected,
The support body 10 that supports the thrust lock mechanism 3 rotates integrally with the drainage port fitting 1 by the hooking engagement of the protrusion 1b and the notch 10b, and rotates together with the threaded portion of the fitting 1 and the screw portion of the connection joint 2.
It is screwed into 2b.

Then, connect the connection point 5c of the release wires 5a and 5b,
The thrust lock mechanism 3 and the operating lever 6 are connected via a release wire 5. Therefore, when the operation lever 6 is pushed, the support shaft 3b of the thrust lock mechanism 3 is locked at the upper end side to open the stopper lid 4, and when the operation lever 6 is pushed next, the support shaft 3b is unlocked. Move to the lower end, and the stopper lid 4 is closed.

In the drain plug device described above, the thrust lock mechanism 3 is attached and installed inside the connection joint 2. Therefore, for example, at the stage of manufacturing in a factory, the thrust lock mechanism 3 and the release wire 5a for connection are attached to the single connection joint 2. It is possible to complete the assembly work without trouble.

Thus, according to the drain plug device described above, the connection joint 2,
When the drainage fitting 1 is screwed and connected, the support 10 for supporting the thrust lock mechanism 3 is threadedly engaged with the female screw portion 2b of the connection joint 2 in a state of being attached to the lower end of the drainage fitting 1.

Therefore, the support body 10 serving as the fixed surface of the thrust lock mechanism 3
H between the upper surface and the bottom of the hair washer a is the metal fitting mounting port of the hair washer a
Even if an error occurs in the thickness dimension A of a ₁ and the tightening position of the connection joint 2 is vertically displaced, it can be maintained at a constant distance. As a result, the opening position of the stopper lid 4 supported by the thrust lock mechanism 3 so as to be movable up and down with a constant stroke is maintained at a predetermined height h, and the opening area of the drainage port b that determines the amount of drainage is kept constant. Can be secured.

In addition, the protrusion 1b of the drainage fitting 1 and the notch 10 of the support 10 described above.
The relationship with the hooking structure with b may be reversed.

The drain plug device described above is provided with the protrusion 1b of the drain fitting 1 and the support 1
0, the support 10 is integrated with the drainage fitting 1 by engaging with the notch 10b, so that the support 10 is kept at a constant distance from the bottom of the hair washer a with respect to the female thread 2b. The thrust lock mechanism 3 is maintained at a fixed mounting position by screwing.

However, in the above-mentioned support 10, the tool d is inserted from the upper side into the drainage port b from which the stopper lid 4 is drawn out as in the embodiment shown in FIG. 6, and the notch d formed at the lower end port of the tool d. ₁ to support 10
By rotating the screwing position of the supporting piece 10a in a state of being locked with respect to the supporting piece 10a, the screwing position of the supporting piece 10a is vertically moved to adjust the opening position of the stopper lid 4 to a predetermined value. May be maintained at height. In this case, the protrusion 1b and the notch 10b
The hooking structure with is unnecessary.

[Brief description of drawings]

1 is a vertical sectional front view showing a drain plug device embodying the present invention, FIG. 2 is a vertical sectional front view showing a drain port fitting and a connecting fitting before connection, FIG. 3 is a front view of a support, and FIG. Is a side view with the same support, FIG. 5 is a front view of a steady rest, FIG. 6 is a perspective view of a tool, and FIG. 7 is a vertical sectional front view showing a conventional drain plug device. In the figure, a: Hair washer (water tank), a ₁ : Metal fitting mounting port 1: Drainage fitting, 2: Connection fitting 3: Thrust lock mechanism 4: Stopper lid, 5: Release wire 6: Operation lever, 7: Hair catcher 10: Support

Claims (1)

[Scope of utility model registration request] 1. A drainage fitting having a substantially cylindrical shape is fitted in a fitting attachment opening at the bottom of a water tank, and a connection joint which serves as a joint of a drainage pipe is screwed to the lower portion of the drainage fitting to connect the drain fitting. The metal fitting port at the bottom of the water tank is held by the flange part at the upper end and the flange part at the upper end of the connection joint, and the plug lid that is fitted in the drain port of the above drainage port metal in a vertically openable / closable state is supported inside the connection joint. A thrust lock mechanism attached and supported through the body holds the open and closed state so that it locks, and this thrust lock mechanism is connected to an operation lever installed at an arbitrary location by a release wire to open and close the lid. In a drain plug device that is remotely operated by an operating lever, a structure in which a support body of the thrust lock mechanism is screwed so as to be vertically movable with respect to an inner circumference of a connection joint.