JP2002061250A - Automatic drain cock device having manual open-close function - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily enable open-close operation by manual operation even when an automatic drain cock device gets trouble and is not operated. SOLUTION: A drain cock 10 is composed of a drain cock body 13, a sleeve 14 and a supporting shaft 11, the drain cock body 13 consists of a cock 15 and a cock shaft 16 and the drain cock body 13 is assembled integrally by inserting the sleeve 14 and connecting the cock shaft 16 to the supporting shaft 11 by a screw. A screw for the drain cock body 13 is loosened and elevated and a drain hole 5 is opened in the case of trouble as the drain cock 10 is left as it is closed. The sleeve 14 is removed and the drain hole 5 is closed by screwing the drain cock body 13 to the supporting shaft 11 in the case of trouble as the drain cock 10 is left as it is opened.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a motor-operated automatic drain valve installed in a bathtub or the like, and more particularly to an automatic drain valve having a manual opening / closing function that enables manual opening / closing even when the automatic drain valve fails. It relates to a device mechanism.

[0002]

2. Description of the Related Art An automatic drain plug device attached to the bottom of a bathtub or the like and opened and closed electrically by remote control is disclosed in JP-A-10-21.
No. 2747, which has been already filed and filed by the present applicant in Japanese Patent Application No. 2000-127098.

In such an automatic drain plug of the prior art, as shown in FIG. 6, a drain tube 6 defining a drain hole 5 is provided at the bottom 4 of a bathtub. A stopper guide tube 9 is provided, on which the supporting shaft 11 'of the stopper 10' shown in FIG. 6 (c) is provided so as to be vertically slidable. Then, as shown in FIG. 6 (b), the support shaft 11 ′ is driven upward by the wire 12 from below to open the drain plug 10 ′, and as shown in FIG. 6 (a),
When the wire 12 moves downward, the drain plug 10 ′ is configured to drop by its own weight and water pressure and close.

The driving force of the wire 12 in the linear direction is applied by a driving device that is remotely operated. For example, the driving device is configured such that a rotation driving force of a stepping motor or the like is applied to a linear motion converting device such as a screw mechanism. It is a device or the like in which a linear driving force is converted by a mechanism.

[0005]

A conventional automatic drainage plug operated by remote control uses a driving force of a stepping motor or the like. However, a stepping motor or a linear motion conversion mechanism breaks down, or a wire is not used. Due to various causes such as poor movement or power outage, a situation in which the automatic drain cock does not open or close while the closed or open automatic drain cock remains in the opened state is also assumed.

In such a case, even if the user of the bathtub requests the bathtub construction company to repair the bathtub, the bathtub cannot be used until a repair staff member arrives or the power outage is canceled. An object of the present invention is to solve such a conventional problem.

SUMMARY OF THE INVENTION It is an object of the present invention to provide an automatic drain plug device having a manual opening / closing function, which is obtained by adding a manual opening / closing function to an automatic drain plug so that a bathtub can be used even when the automatic drain plug fails. It is another object of the present invention to realize a manual opening / closing function with a very simple configuration.

[0008]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a drainage pipe attached to a drainage opening at the bottom of a tank, a drainage plug for opening and closing the drainage pipe, and a drainage plug attached to the drainage pipe. A drain guide tube having a cylindrical hole for supporting the support shaft of the drain plug so as to be slidable but non-rotatable, and a distal end portion inserted into the drain plug guide tube to remotely control the support shaft. An automatic drainage device with a manual opening / closing function comprising a wire for slidably driving by operation, wherein the drainage plug has a drainage plug main body and the support shaft, and the drainage plug main body is a plug. And a stopper shaft protruding from the center of the stopper. The stopper shaft and the support shaft are detachably connected to each other so as to be adjustable in length in the axial direction, and the drain plug body and the support shaft are integrally formed. To provide an automatic drainage device with a manual opening / closing function, which is characterized by being assembled in an automated manner That.

The plug shaft and the support shaft may be connected to each other by screws.

Further, in order to solve the above-mentioned problems, the present invention provides a drainage pipe attached to a drainage opening at the bottom of a tank, a drainage plug for opening and closing the drainage pipe, and a drainage pipe attached to the drainage pipe, A drain plug guide cylinder having a cylindrical hole for supporting the stopper's support shaft so as to be slidable but non-rotatable, and a distal end portion is inserted into the drain plug guide cylinder, and the support shaft is slid by remote control. An automatic drainage device with a manual opening / closing function comprising a wire for driving, wherein the drainage plug has a drainage plug main body, a sleeve, and the support shaft, and the drainage plug main body is a plug. And a plug shaft protruding from the center of the plug, and the plug shaft is inserted through the sleeve and connected to the support shaft so as to be detachable and axially adjustable in length with screws. The drain plug body and the support shaft are integrally assembled. It provides manual opening and closing function an automatic discharge valve device.

The outer surface of the support shaft and the cylindrical hole of the drain plug guide cylinder may be formed in the same square shape.

[0012] The distal end of the wire may be in contact with a support shaft, and the proximal end may be mounted on a remotely operable driving device for driving the wire in the axial direction.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of an automatic drainage device with a manual opening / closing function according to the present invention will be described with reference to the accompanying drawings. 1 to 5 are views for explaining an embodiment of an automatic drainage plug device with a manual opening / closing function according to the present invention.
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a diagram illustrating an automatic drainage plug device 1 with a manual opening / closing function of the present invention and an entire structure in which the automatic drainage plug device 1 is applied to a bathtub.

A bathtub 3 is provided in the bathroom 2.
The drainage plug device 1 with a manual opening / closing function is disposed on the bottom 4 of the device.
The drain plug device 1 with a manual opening / closing function is provided with a substantially cylindrical drain cylinder 6 defining a drain hole 5, a drain pipe 7 mounted so as to communicate the drain cylinder 6, and a bracket 8 in the drain cylinder 6. The drain shaft guide tube 9, the drain plug 10, and a part of the drain plug 10. The support shaft 11 slidable up and down in the guide tube 9 but not rotatable. And a driving wire 12 that is slidable in the direction and contacts the support shaft 11 of the drain plug to drive the support shaft 11 upward.

FIG. 2 shows the structure of the drain plug.
FIG. 2A is a top view thereof, and FIG.
3A illustrates an AA cross section. Further, FIG.
2B is a cross-sectional view taken along the line BB of FIG.
(D) is a figure which shows the cross section which decomposed | disassembled the drain plug 10 into the components.

The drain plug 10 is, as shown in FIG.
It is composed of three parts: a plug body 13, a sleeve 14, and a support shaft 11. The plug body 13 includes a disc-shaped plug 15 and a plug shaft 16 extending downward from the lower surface of the plug 15. A knob 17 is formed on the upper surface of the stopper 15.
The plug body 13 can be rotated in the opening direction and the closing direction by holding the 7. A male screw 18 is formed on the outer surface of the plug shaft 16.

The sleeve 14 has a hole having a diameter through which the plug shaft 16 can be inserted. The outer diameter of the sleeve 14 is substantially the same as that of the support shaft 11, and is formed in a hexagon like the support shaft 11. The support shaft 11 is formed with a screw hole 20 having an internal thread 19 formed on the inner surface thereof, so that the male screw 18 of the plug shaft 16 can be screwed therein. The outer surface of the support shaft 11 has a hexagonal shape (a corner other than a hexagonal shape), as shown in a cross section in FIG. It is slidable but non-rotatably inserted.
The drain plug 10 is formed by inserting the plug shaft 16 into the sleeve 14 and screwing it into the screw hole 20 of the support shaft 11 as shown in FIG.
It is assembled as shown in FIG.

FIG. 3 (a) is an enlarged view of a main part of the drain plug device 1. According to FIG.
And a flange portion 22 formed at the upper end thereof. The drainage tube 6 is inserted into a through hole formed in the bottom 4 of the bathtub 3, and the flange portion 22 contacts the bottom 4, whereby the drainage tube 6 is mounted on the bottom 4 of the bathtub 3.

A drainage guide tube 9 is attached to the inner wall of the drainage tube 6 via a bracket 8 at a position substantially coaxial with the drainage tube 6. This drain plug guide cylinder 9 has a support shaft 11
Is inserted in a slidable but non-rotatable (rotated) state, so that a hexagon having the same shape as the support shaft 11 (an angle other than a hexagon may be used if the support shaft 11 is the same shape). ) Is formed.

FIG. 3C is a sectional view taken along the line CC of FIG. 3A. As shown in FIG. 3C, the support shaft 11 of the drain plug 10 is a hexagonal Is slidable but non-rotatably inserted into the cylindrical hole. The support shaft 11 descends in the drain plug guide cylinder 9, and as shown in FIG. 3A, an annular protruding edge 23 formed on the lower surface of the plug 15 contacts the upper surface of the flange portion 22, and the drain hole 5 is formed. Can be closed, and when the support shaft 11 rises inside the drain plug guide cylinder 9, FIG.
As shown in FIG. 5, the stopper 15 is separated from the upper surface of the flange portion 22 so that the drain hole 5 can be opened.

The distal end 24 of the wire 12 is slidably inserted into the drain plug guide cylinder 9, contacts the lower end 25 of the support shaft 11, and can drive the drain plug 10 upward. When the wire 12 moves downward, the drain plug 10 can be lowered by its own weight or the water pressure in the bathtub.
In FIG. 1, the wire 12 is slidable in the guide tube 26 in the axial direction, is taken out of the drainage pipe 7 together with the guide tube 26, and is guided to the driving device 28 through the protection tube 27.

The driving device 28 includes a stepping motor 29
When the rotation drive shaft 30 of the stepping motor 29 rotates forward and backward, the elevating member 31 moves linearly only in the axial direction (up and down direction) without rotating.
The rotation drive shaft 30 and the elevating member 31 are configured to be screw-connected. The base end 32 of the wire 12 is attached to the lower end of the lifting member 31.

The stepping motor 29 operates an operation section 33 to open and close a switch 35 provided on a control board 34 so that non-operation and operation can be performed. The control board 34 and the stepping motor 29 are connected to a water heater 36. For example, a remote operation of the stepping motor 29 can be operated by a remote switch 38 of a remote controller 37 provided in the kitchen.

A magnet 39 is attached to the side surface of the elevating member 31. By detecting this by a proximity switch 40, the elevating state of the elevating member 31 is detected, the stepping motor 29 is stopped, and the stepping motor 29 is stopped. The configuration is such that the circuit can be switched from a normal rotation to a standby state where the rotation can be reversed.

(Operation) The operation of the automatic drainage plug device 1 with the manual opening / closing function according to the present invention having the above configuration will be described below. When the drain plug 10 of the automatic drain plug device 1 is closed to fill the bathtub 3 with water, by operating the switch 35 of the operation unit 33 or the remote switch 38 of the remote controller 37 in the kitchen, the stepping motor 29 to the rotary drive shaft 30 are turned right. Turn over.

Then, the elevating member 31 screwed to the rotary drive shaft 30 ascends and rises to some extent.
Is detected by the proximity switch 40, the driving of the stepping motor 29 is stopped, and the circuit is switched so that the stepping motor 29 is reversed when operated next.

When the elevating member 31 rises in this way, the wire 12 is pulled in the direction of ← in FIG. Then, the drain plug 10
The support shaft 11 of FIG.
As shown in (a), the annular protruding edge 23 formed on the lower surface of the plug 15 contacts the upper surface of the flange portion 22 of the drain plug guide tube 9 to close the drain hole 5.

Next, when the drain plug 10 is opened and the water in the bathtub 3 is drained from the drain hole 5 into the drain pipe 7, the operation unit 3
When the switch 35 of No. 3 or the remote switch 38 of the remote controller 37 in the kitchen is operated, the stepping motor 29 to the rotary drive shaft 30 are reversed, and the elevating member 31 descends to drive the drive wire 12 in the right direction. Then, the distal end portion 24 of the wire 12 drives the support shaft 11 upward, and moves the drain plug 10 upward. As a result, as shown in FIG.
And drain hole 5 is opened.

The above is the state in which the automatic drain plug device 1 with the manual opening / closing function is operating normally. However, the stepping motor 29, the rotary drive shaft 30, the elevating member 31
Or the like, a malfunction of the wire 12 in the guide tube 26, or various causes such as a power failure.
A manual operation will be described when a situation occurs in which the open / close operation is not performed while the device is closed or opened.

FIG. 4 shows that the automatic drain plug 10 having the manual opening / closing function fails and the drain plug 10 cannot be automatically opened in a state where the drain plug 10 is closed while water is filled in the bathtub 3. FIG. 7 is a diagram for explaining a manual operation in a case where the operation is not performed. FIG.
(A) shows a state in which the drain plug 10 does not move upward even when the switch 35 or the remote switch 38 of the operation unit 33 is operated while the drain plug 10 is closed.

In this case, the knob 17 of the plug 15 is pinched with a finger and rotated counterclockwise (see the opening direction in FIG. 2A). Then, the male screw 18 of the plug shaft 16 of the drain plug 10 is guided by the female screw 19 of the support shaft 11 and rises upward away from the support shaft 11. As a result, FIG.
As shown in (b), the drain plug 10 moves upward to be opened, and the water in the bathtub 3 can be drained from the drain hole 5.

FIG. 5 shows that the automatic drain plug 10 having the manual opening / closing function fails and the drain plug 10 is automatically opened and closed even when the water is to be filled in the bathtub 3. It is a figure for explaining a manual operation in a case where it cannot be performed. FIG. 5A shows a state in which the drain plug 10 does not move downward even when the switch 35 or the remote switch 38 of the operation unit 33 is operated while the drain plug 10 is open.

In the case of such a failure, the knob 17 of the plug 15 is rotated counterclockwise to move the plug shaft 16 upward with respect to the support shaft 11 as in FIG. Plug body 1
5 is removed from the support shaft 11 as shown in FIG.
Further, the sleeve 14 is also removed. In this state, the removed plug body 13 is directly screwed into the female screw 19 of the support shaft 11 without inserting the plug shaft 16 through the sleeve 14, and the plug body 13 is screwed to the support shaft 11.

Then, as shown in FIG. 5 (c), the plug body 13 can be screwed downward into the support shaft 11 by the length of the removed sleeve 14, so that the plug 15 of the drain plug 10 is drained. The upper surface of the flange portion 22 of the tube 6 can be abutted, and as a result, the drain plug 5 closes the drain hole 5.

In the above embodiment, the plug shaft 16 and the support shaft 11
Are screw-coupled to each other so that they can be disassembled and adjusted in length. However, even if they are not screw-coupled, for example, a pressing element (such as a ball) pressed by a spring may be locked by engaging a recess on the other side. (See Japanese Utility Model Publication No. 50-23721),
Needless to say, any connection structure such as bayonet connection (see Japanese Utility Model Publication No. 36-29731) that can be disassembled and whose length can be adjusted can be applied to the mutual connection structure of the plug shaft and the support shaft of the present invention.

Although the embodiments of the present invention have been described based on the embodiments, the present invention is not limited to the above-described embodiments, and various modifications may be made within the scope of the technical matters described in the claims. It goes without saying that there are embodiments.

[0037]

The automatic drainage device with a manual opening / closing function according to the present invention has the above-mentioned configuration, and therefore even if the automatic drainage device fails and stops operating, the manual opening / closing operation can be easily performed. In addition, since the drain plug has a very simple structure, it can be easily attached to an existing automatic drain plug device as well as a newly installed automatic drain plug device.

[Brief description of the drawings]

FIG. 1 is a view showing an embodiment of an automatic drainage device with a manual opening / closing function according to the present invention.

FIG. 2 is a diagram illustrating a configuration of a drain plug of an embodiment of an automatic drain plug device with a manual opening / closing function according to the present invention.

FIG. 3 is a diagram illustrating a configuration and a normal operation of an embodiment of an automatic drainage plug device with a manual opening / closing function according to the present invention.

FIG. 4 is a diagram for explaining an operation of the embodiment of the automatic drainage plug device with a manual opening / closing function according to the present invention when a failure occurs.

FIG. 5 is a view for explaining the operation of the embodiment of the automatic drainage plug device with a manual opening / closing function according to the present invention when a failure occurs.

FIG. 6 is a diagram illustrating a configuration of a conventional automatic drainage plug.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Automatic drain plug device with a manual opening / closing function 3 Bathtub 6 Drain tube 8 Bracket 9 Drain plug guide tube 10 Drain plug 11 Support shaft 12 Wire 13 Plug body 14 Sleeve 15 Plug 16 Plug shaft 17 Knob 18 Male screw 19 Female screw 22 Flange part 24 Wire End portion 26 guide tube 28 drive device 29 stepping motor 31 elevating member 33 operating portion 36 water heater 38 remote control

Claims (5)

[Claims] 1. A drainage pipe attached to a drainage opening at the bottom of a tank, a drainage plug for opening and closing the drainage pipe, and a drainage pipe attached to the drainage pipe and capable of sliding on a support shaft of the drainage plug. A manual operation comprising: a drainage guide tube having a cylindrical hole for supporting it so that it cannot be rotated; and a wire having a tip inserted into the drainage guide tube and slidingly driving the support shaft by remote control. An automatic drainage device with an opening and closing function, wherein the drainage plug has a drainage plug main body and the support shaft, and the drainage plug main body has a plug and a plug shaft protruding from a central portion of the plug. The plug shaft and the support shaft are detachably connected to each other so as to be adjustable in length in the axial direction, and the drain plug body and the support shaft are integrally assembled. Automatic drain valve with opening and closing function. 2. The automatic drainage plug device with a manual opening / closing function according to claim 1, wherein the plug shaft and the support shaft are connected to each other by screws. 3. A drainage pipe attached to a drainage opening at the bottom of the tank, a drainage plug for opening and closing the drainage pipe, and a drainage pipe attached to the drainage pipe and capable of sliding on a support shaft of the drainage plug. A manual operation comprising: a drainage guide tube having a cylindrical hole for supporting it so that it cannot be rotated; and a wire having a tip inserted into the drainage guide tube and slidingly driving the support shaft by remote control. An automatic drainage plug device with an opening / closing function, wherein the drainage plug has a drainage plug main body, a sleeve, and the support shaft, and the drainage plug main body is provided with a plug protruding from a central portion of the plug. A shaft, wherein the plug shaft is inserted through the sleeve and is detachably connected to the support shaft with a screw so that the length thereof can be adjusted in the axial direction, so that the drain plug main body and the support shaft are integrally formed. An automatic drainage device with a manual opening / closing function, characterized in that the device is assembled in a container. 4. The automatic drainage with a manual opening / closing function according to claim 1, wherein the outer surface of the support shaft and the cylindrical hole of the drain plug guide cylinder are formed in the same rectangular shape. Stopper device. 5. The device according to claim 1, wherein a distal end of the wire abuts on a support shaft, and a proximal end of the wire is mounted on a remotely operable driving device for driving the wire in an axial direction. An automatic drainage plug device with a manual opening / closing function according to 2, 3, or 4.