JPH0589568U - Drain plug device - Google Patents

Abstract

(57) [Abstract] [Purpose] To ensure the watertightness of the drain plug so that it can be easily rotated with a little force. [Structure] A shaft 4 is hung vertically from the lower surface of a drain plug 2. A plug support member 5 that protrudes in a direction orthogonal to the shaft 4 is provided below the shaft 4. Stopper support member 5
A height adjusting member 6 on which is mounted is provided in a drain pipe 7 communicating with the drain port 1. The height adjusting member 6 is provided with a descending step portion 8 for changing the mounting height of the plug support member 5 to position the drain plug 2 at the drain port 1 in a closed state. An ascending step portion 9 is provided to lift the drain plug 2 upward so as to open the drain port 1.
It is a drain plug device in which a descending step portion 8 and an ascending step portion 9 are connected continuously by an inclined portion 10. A seal protrusion 3 which makes line contact along the upper inner peripheral surface of the drainage port 1 when the drainage port 1 is closed by the drainage plug 2.
0 is projected from the peripheral end surface of the drain plug 2.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a drain plug device installed at a drain port of a vanity or sink.

[0002]

[Prior Art]

 Conventionally, a drain plug of a bowl body such as a vanity or a sink may be provided with a drain plug so that water can be stored in the bowl body. By operating the operation knob provided in the section, the operating members such as the kick lever and the release connected to the drain plug are operated, and thereby the drain plug is moved up and down to close or open the drain port. You can do it.

[0003]

[Problems to be solved by the device]

 However, in the conventional example as described above, it is necessary to provide a mounting hole for the operation knob in the bowl body, and a kick lever or release for interlocking the operation knob and the drain plug is provided on the back side of the bowl body. However, the structure of the main body of the bowl body and the mechanism for moving the drain plug are complicated, and there are problems such as deterioration of productivity, price increase, washbasin design, and deterioration of maintainability. For this reason, the applicant has come to think of a device in which the drain plug can be moved up and down to open and close the drain port by rotating the drain plug itself without using a complicated structure. As shown in FIG. 6, a shaft 4 vertically extends from the lower part of the drain plug 2 as shown in FIG. 6, and the plug support member 5 is provided at the lower end of the shaft 4 in a direction orthogonal to the shaft 4. Is provided so that the tip of the plug support member 5 is locked to locking step portions 8 and 9 formed on the inner wall of the drainage port 1 at different height positions. The drainage plug 2 is moved up and down to open or close the drainage port 1 by moving the drainage plug 2 up and down by changing the locking position of the plug body supporting member 5 to the locking step portions 8 and 9 having different height positions. You can do it. Since it is necessary to seal the drain plug 2 and the drain port 1 in a watertight manner, an O ring 41 is provided as a seal member 40 on the outer peripheral end of the drain plug 2, and the O ring 41 drains water. By contacting the inner wall surface of the mouth 1, watertightness is ensured. However, since the O-ring 41 is in contact with the inner wall surface of the drainage port 1 with a large contact area, a large force is required when rotating the drainage plug 2 in the closed state. Therefore, there is a problem that it is difficult to perform the turning operation.

The present invention is intended to solve the above-mentioned problems, and an object of the present invention is to provide a drain plug device that can easily rotate the drain plug with a little force while ensuring water tightness. To do.

[0005]

[Means for Solving the Problems]

 In the present invention, in order to achieve the above object, a finger hook 3 for horizontally rotating the drain plug 2 is provided on the upper surface of the drain plug 2 arranged at the drain port 1, and the finger hook 3 is provided below the lower surface of the drain plug 2. A shaft 4 is hung vertically toward the shaft 4, and a stopper body supporting member 5 projecting in a direction orthogonal to the shaft 4 is provided at a lower portion of the shaft 4, and a height adjusting member 6 on which the stopper body supporting member 5 is mounted is provided at a drain port 1. A descending step portion 8 provided in the drainage pipe 7 communicating with the drainage pipe 7 and changing the mounting height of the plug support member 5 on the height adjusting member 6 to position the drainage plug 2 in the drainage port 1 in a closed state; When a rising step portion 9 for lifting the drain plug 2 upward is provided so as to open the drainage port 1 and the descending step portion 8 and the rising step portion 9 are connected continuously by the inclined portion 10, the drain plug 2 When the drainage port 1 is closed, drain the seal protrusion 30 that makes line contact with the inner peripheral surface of the upper portion of the drainage port 1. It is obtained by projecting from the second peripheral surface.

[0006]

[Action]

 Then, by placing a finger on the finger rest 3 and horizontally rotating the drain plug 2 to position the plug support member 5 on the rising step 9 of the height adjusting member 6, the drain plug 2 is lifted upward. As a result, the drainage port 1 can be opened, and the drainage plug 2 can be lowered by locating the stopper body supporting member 5 on the descending step portion 8 of the height adjusting member 6 to the drainage port 1 in the closed state. It can be located and the drain 1 can be closed. The watertightness between the drain plug 2 and the drainage port 1 is ensured by the seal projection 30 which is in line contact with the inner peripheral surface of the upper portion of the drainage port 1, and further the seal projection 30. Since it is in line contact with the inner peripheral surface of the drainage port 1, the turning operation of the drainage plug 2 can be performed with a small force, and the turning operation of the drainage plug 2 can be easily performed.

[0007]

【Example】

 Hereinafter, the present invention will be described in detail with reference to the illustrated embodiments. The drain plug device is provided on a bowl body 11 such as a vanity or sink, and as shown in FIG. 1, a height adjusting member 6 provided in a drain pipe 7 continuous with the drain port 1. And a drain plug 2 arranged in the drain port 1, and a plug support member 5 arranged below the drain plug 2.

A protrusion 3 a is provided on the upper surface of the drain plug 2 so as to extend between the end portions, and a finger hook 3 for gripping the drain plug 2 with a finger and horizontally rotating the drain plug 2 is formed by the protrusion 3 a. There is. From the peripheral end surface of the drain plug 2, a seal projection 30 is provided so as to make a line contact along the inner peripheral surface of the upper portion of the drain port 1 when the drain port 1 is closed by the drain plug 2. The seal projection 30 is provided so as to project outward from the peripheral end portion of the annular seal member 40 having elasticity as shown in FIG. 3, and the annular seal member 40 is provided as shown in FIG. It is engaged with a recess 15 provided at the peripheral end of the drainage tap 2. Here, the sealing projection 30 is in a state of protruding outward from the peripheral end surface of the drain plug 2, and when the drain outlet 1 is closed by the drain plug 2, the sealing projection 30 is elastically deformed and the drain outlet is closed. Line contact is made along the inner surface of the upper part of 1.

A shaft 4 vertically extends from the lower surface of the drain plug 2, and a plug support member 5 is provided at the lower end of the shaft 4 in a direction orthogonal to the shaft 4. The plug body supporting member 5 has a cross section formed in a home base shape, and a projecting dimension in both sides is approximately the same as or slightly shorter than the inner diameter of the drainage pipe 7. Here, the shaft 4 located between the plug body support member 5 and the drain plug 2 may be provided with a hair catcher for capturing hair or dust flowing into the drain port 1. The height adjusting member 6 provided in the drainage pipe 7 is formed in a tubular shape so that it can be arranged along the inner surface of the drainage pipe 7, and the upper end surface of the height adjusting member 6 has a plug body supporting member 5 The end is placed. The height adjusting member 6 changes the mounting height of the plug support member 5 to move the drainage plug 2 up and down, and the drainage plug 2 can be fixed at a predetermined height. The portion 8 is provided by a notch, and the ascending step portion 9 and the descending step portion 8 are continuous with each other at the inclined portion 10. The descending step portion 8 is for lowering the mounting position of the plug body supporting member 5 to position the drain plug 2 in the drainage port 1 in the closed state, and the ascending step portion 9 is for mounting the plug body supporting member 5. This is for raising the installation position and lifting the drain plug 2 upward to open the drain port 1.

In the illustrated embodiment, the ascending step portion 9 and the descending step portion 8 are provided at one place, but the present invention is not limited to this and a plurality of them are provided. The opening state of the drainage port 1 by the drain plug 2 can be adjusted to a plurality of stages by providing a plurality of stages. Then, when the drain plug 2 is horizontally rotated by placing a finger on the finger hook 3 and the drain plug 2 is rotated, the plug support member 5 is rotated, and the rotating plug support member 5 is shown in FIG. As shown in FIG. 1, the slanted portion 10 is slid from the descending step portion 8 to be placed on the ascending step portion 9 as shown in FIG. 1 (b), whereby the drain plug 2 is moved upward. It will be fixed in this state, and the drainage port 1 will be open. Here, when moving the stopper support member 5 from the descending step portion 8 to the ascending step portion 9, since the descending step portion 8 and the ascending step portion 9 are in a continuous state by the inclined portion 10, the stopper body supporting member 5 is supported. The member 5 slides on the upper end surface of the inclined portion 10 so that the drain plug 2 can be smoothly rotated. Further, when the drain port 1 is closed from the open state shown in FIG. 1B, the drain plug 2 is further rotated to move the plug support member 5 over the ascending step portion 9 to the descending step portion 8. This means that the drain plug 2 is located at the drain port 1 and the drain port 1 is closed as shown in FIG. 1 (a). Here, the drain plug 2 may be rotated in one direction or may be rotated in the opposite direction after the height is adjusted. It can be adjusted. The drain plug 2 that closes the drain port 1 is designed to ensure water tightness by the sealing projection 30 protruding from the peripheral end face being in contact with the upper inner peripheral surface of the drain port 1. However, since the seal projection 30 is in line contact with the inner peripheral surface of the upper portion of the drainage port 1, the drain plug 2 can be rotated with a small force without requiring a large force. The turning operation of the drain plug 2 via the portion 3 can be easily performed.

FIG. 5 shows another embodiment, in which the seal projection 30 is formed to have a substantially U-shaped cross section. In this case as well, when the drainage port 1 is closed by the drainage plug 2, the seal projection 30 makes a line contact along the inner peripheral surface of the upper part of the drainage port 1, and the same effect as the above-described embodiment can be obtained. It is something that can be done.

[0012]

[Effect of the device]

 As described above, according to the present invention, the finger hook portion for horizontally rotating the drain plug is provided on the upper surface of the drain plug disposed at the drain port, and the shaft is vertically hung downward from the lower surface of the drain plug. A plug support member that protrudes in a direction orthogonal to the shaft is provided on the plug, and a height adjustment member on which the plug support member is placed is provided in a drain pipe that communicates with the drainage port. It is equipped with a descending step part that changes the mounting height of the drain to position the drain plug at the drain port in a closed state, and an ascending step part that lifts the drain plug upward to open the drain port. In a drain plug device in which a step part and an inclined part are connected continuously, a sealing protrusion that makes line contact along the upper inner peripheral surface of the drain port when the drain port is closed by the drain plug projects from the peripheral end face of the drain plug. The drain plug is rotated horizontally by the finger hook. The drain plug can be vertically moved and fixed by locking the plug support member to either the rising step or the falling step of the height adjustment member, and opening or closing the drain port. It does not require a complicated structure such as a pop-up mechanism, and the mounting holes and operation knobs that are provided in the bowl are not required, which can reduce the cost and the design of the bowl. However, the watertightness is ensured between the drain plug and the drain port by the seal protrusion that makes line contact along the upper inner peripheral surface of the drain port, while improving the maintainability. Furthermore, since the seal projection is in line contact with the inner peripheral surface of the drain port, the drain plug can be rotated with a small force, and the drain plug can be easily rotated. It is.

[Brief description of drawings]

1A and 1B show an embodiment of the present invention, in which FIG. 1A is a sectional view showing a state in which a drain port is closed, and FIG. 1B is a sectional view in a state in which a drain port is opened.

FIG. 2 is a partially enlarged sectional view of the above.

3A and 3B show a sealing member, FIG. 3A is a plan view, and FIG. 3B is a partially cutaway front view.

FIG. 4 is a partially enlarged sectional view of a portion A in FIG. 3 (b).

FIG. 5 is a partially cutaway front view showing another embodiment of the seal member.

FIG. 6 is a cross-sectional view of a conventional example with a part thereof omitted.

[Explanation of symbols]

 1 Drain Port 2 Drain Plug 3 Finger Hook 4 Shaft 5 Plug Supporting Member 6 Height Adjusting Member 7 Drain Pipe 8 Downward Step 9 Upward Step 10 Inclination 30 Sealing Protrusion

Claims (1)

[Scope of utility model registration request] 1. A finger hook portion for horizontally rotating the drain plug is provided on an upper surface of the drain plug arranged at the drain outlet, and a shaft is hung vertically downward from a lower surface of the drain plug, and a shaft is provided at a lower portion of the shaft. A plug supporting member that protrudes in a direction orthogonal to each other is provided, and a height adjusting member on which the plug supporting member is mounted is provided in a drain pipe communicating with the drain port, and the plug supporting member is mounted on the height adjusting member. A descending step portion that changes the height to position the drain plug in the closed state at the drain port and an ascending step portion that lifts the drain plug upward to open the drain port are provided, and the descending step portion and the ascending step portion are provided. In a drain plug device consisting of a slanted portion, the drain plug has a sealing projection that makes line contact with the inner peripheral surface of the upper part of the drain plug when the drain plug blocks the drain plug. Stopper device.