JP6752424B2 - Valve body of valve member - Google Patents

Description

The present invention relates to a valve member that closes a drain port of a tank body, and more particularly to a valve body of a valve member that closes the drain port by covering the drain port.

Conventionally, in order to treat the drainage generated inside the tank body such as a bathtub or a washbasin, a drainage port is provided on the bottom surface of the tank body, and the drainage is discharged from this drainage port to the sewage side via a piping member. Is widely known.
In such a tank body, a method of opening and closing a drain port by using a valve member is known when water is stored in the tank body.
As a configuration of the valve member, there is a method of simply molding the whole with a rubber block according to the shape of the drain port, but as another method, a disk shape using a hard resin such as ABS resin or polypropylene is used. A method of molding a valve body is known.
The conventional valve member will be described below.
The valve member described in Patent Document 1 is composed of the valve body described below and is connected to a drain port provided with a remote-controlled drain plug device (in this conventional example, the valve member is composed of only the valve body. Therefore, the valve member and the valve body are the same).
The valve body is a disk-shaped member that closes the drain port by covering the drain port from above, and is composed of an upper part of the valve body which is a cover and a lower part of the valve body.
The upper part of the valve body is a disk-shaped member forming an arc that is circular in a plan view and almost flat in a side view, and is provided with a plurality of claws toward the center at the edge of the disk.
The lower part of the valve body is a substantially disk-shaped member, and the upper surface substantially matches the inner surface of the upper part of the valve body, and a slit portion is provided at a position corresponding to the claw part of the upper part of the valve body at the edge of the disk. A fitting portion is provided in the center of the lower surface, and a cylindrical guide portion is provided around the fitting portion.
Each member of the valve body configured as described above is a valve body in which the upper part of the valve body and the lower part of the valve body are fitted and connected by fitting the claw portion of the upper part of the valve body into the slit portion of the lower part of the valve body. It is configured as.

The valve member described in paragraph 0002 is connected to the drain port described below.
The drainage port is an opening provided on the bottom surface of the tank body such as a bathtub or a washbasin, and is connected to a pipe on the sewage side via a drainage pipe, and drainage in the tank body passes through the drainage port and the drainage pipe. , Drained to the sewage side.
Further, the drainage port of this conventional example is provided with a remote-controlled drainage plug device that opens and closes the drainage port by operating an operation unit located at a position away from the drainage port.
The remote-controlled drain plug device is provided in a drain port, and has a valve shaft whose tip is fitted with a fitting portion of a valve body, an operating portion for accommodating the valve shaft so as to be able to move forward and backward, and draining the operating portion. It consists of a support member that supports the inside of the mouth and a release wire that transmits the operation of the operation unit to the valve shaft.
Further, by fitting the fitting portion of the valve body to the tip of the valve shaft, the outer peripheral surface of the support member is in contact with the inner peripheral surface of the guide portion, and the drainage port as described above is subjected to. The valve body is attached.

By operating the operation unit of the remote-controlled drain plug device in the valve member and drain port configured as described above, either ascending or descending operation can be selected with respect to the valve shaft in the drain port. Can be done.
The valve body (valve member) attached to the tip of the valve shaft rises along with the valve shaft when the valve shaft rises, and opens the drain port away from the drain port. When the drain port is opened, the water discharged or drained water in the tank is discharged from the drain port to the sewage side through the drain pipe.
When the valve shaft descends, the valve body descends along with the valve shaft and closes so as to cover the drain port. As a result, when water is discharged in the tank, the water can be stored in the tank.
In this way, the drainage port can be opened and closed remotely by operating the operating body of the operation unit located away from the drainage port and the valve member.

For the following reasons, the valve body of the valve member described in Patent Document 1 is composed of two upper and lower members.
Resin molding is performed by applying a high pressure to the resin in a molten state at a high temperature and injecting the resin into the mold, opening the mold after the resin has cooled, and removing the resin from the mold.
Since the temperature at the completion of molding is lower than that at the start of molding, the molded product shrinks due to cooling of the material at the completion of molding. This shrinkage shrinks by the same percentage, but because the molded product has a difference in thickness, the molded product does not shrink by the same width as a whole, and the actual shrinking width of each part changes depending on the difference in thickness. ..
For example, when molding a convex molded product, if the thickness of the left and right parts in the vertical direction is 100 mm, the central part is 200 mm, and the shrinkage rate is 1% on the mold, the left and right parts of the molded product are left and right. The vertical thickness of the portion is 99 mm, while the central portion is 198 mm. If the whole is reduced by the same width (for example, 1 mm), the shape on the mold can be accurately reproduced regardless of the dimensions, but as mentioned above, due to the difference in the wall thickness of the resin, there is a certain place. The width of shrinkage changes to 2 mm in some places and 1 mm in some places, making it difficult to accurately reproduce the shape on the mold. When a dent that did not exist on the mold is formed on the surface of the molded product due to such a difference in the wall thickness of the molded product, the formed dent portion is called a “sink”.
When the valve body is molded as an integral member by resin molding, it is necessary to form a fitting portion or the like in the lower part of the valve body, so that a difference in wall thickness occurs in the vertical direction of the valve member, which causes a difference in wall thickness. A sink mark will occur on the upper surface of the valve body. The upper surface of the valve body is a portion that is particularly noticeable to the user of the tank body and is required to have a design, and it is not preferable that the design is deteriorated by the occurrence of sink marks in this portion.
Therefore, the valve body is composed of the upper part (cover) of the valve body and the lower part of the valve body, and the upper part of the valve body has a uniform wall thickness to prevent sink marks, that is, a part that is noticeable to the user. The design of the upper surface of the upper part of the valve body is good.

JP 2013-119769

In the valve member described in Patent Document 1, the valve body is composed of an upper part (cover) of the valve body and a lower part of the valve body in order to improve the design of the valve body against sink marks, and this is a claw portion. It is used as an integral member by fitting and connecting with the slit part.
Actually, the fact that the valve body is composed of two members, the upper part of the valve body and the lower part of the valve body, not only eliminates the sink marks on the upper surface of the valve body and enhances the design, but also the valve body and the lower part of the valve body. This method is adopted even when an undercut structure is provided.
By the way, the direction of the fitting connection between the upper part of the valve body and the lower part of the valve body is the vertical direction with reference to the state where the drainage port is closed at the completion of construction.
On the other hand, when the valve body opens and closes the drain port, the direction of stress applied to the valve body is also in the vertical direction with respect to the drain port. Therefore, when the valve body is moved up and down to open and close the drain port, the mating between the claw and the slit is released due to the stress and impact applied to the valve body, and the upper part of the valve body and the lower part of the valve body are released. There was a problem that and may be separated.
This is not limited to the valve body of the valve member used in the remote-controlled drain plug device.
When closing the drainage port, whether it is a remote-controlled drainage plug device or when working with the valve body in hand, place the valve body above the drainage port and move it downward to the drainage port. Close the mouth. In addition, when opening the drain port, the valve body arranged at the drain port is moved upward to drain water, regardless of whether the remote-controlled drain plug device is used or the valve body is held in the hand for work. Open your mouth.
In this way, the direction of the action (stress) applied to the valve body to open and close the drain port is the direction for fitting and connecting the upper part of the valve body and the lower part of the valve body regardless of the presence or absence of the remote-controlled drain plug device. Since it is the same as the above, there is a problem that the valve body is separated into the upper part of the valve body and the lower part of the valve body in the normal use of the valve member.
The present invention has been invented in view of the above problems, and provides a valve body of a valve member capable of easily and surely connecting an upper part of the valve body and a lower part of the valve body in the valve body of the valve member. ..

The present invention according to claim 1 is a valve member that closes a drain port provided on the bottom surface of the tank body, and the valve member is provided with a valve body that covers the drain port, and the valve body is provided with the valve body. It is composed of a substantially flat plate-shaped valve body upper portion having an engaging portion and a substantially flat plate-shaped valve body lower portion having an engaged portion that engages with the engaging portion, and is engaged with the engaging portion. engaging portion is engaged is performed by rotation, I rotational locking structure der, in the valve body of the valve member, the valve body lower portion, a through hole penetrating the valve body lower portion, the inner periphery of the through hole The valve body of the valve member is characterized in that a fitting portion having a shape that the mold cannot be removed from only one of the through holes is provided on the surface along the peripheral edge .
Regarding "a fitting portion in which the mold cannot be removed from only one of the through holes", "a fitting portion in which the mold cannot be removed from only one of the through holes" means that the fitting portion is When molding the lower part of the valve body by resin molding, the mold inside the through hole is moved downward as it is after molding, or a part of the mold such as rotation is operated in the substantially horizontal direction, and then the lower part of the valve body is formed. Even if it is attempted to be pulled out from the mold, the uneven shape of the fitting portion becomes an obstacle and the mold in the portion above the fitting portion cannot be pulled out downward.

According to the second aspect of the present invention, in the valve body of the valve member, a holding portion made of a non-rotating body-shaped portion is provided on either one or both of the upper part of the valve body and the lower part of the valve body of the valve member. The valve body of the valve member according to paragraph 0008.
The "rotating body shape" referred to here is a shape obtained by rotating one cross-sectional shape around an arbitrary axis, and the "non-rotating body shape" is a shape different from the above-mentioned rotating body shape. It points to. Even if it partially has a rotating body shape, if any of the whole includes a shape that is not a rotating body shape, the whole shape is a non-rotating body shape (note that the portion that is a rotating body shape). In most cases, if there are only a few parts that are not in the shape of a rotating body, or if the function is the same as the shape of a rotating body, it is described as "approximately the shape of a rotating body").

According to the third aspect of the present invention, in the valve body of the valve member, the upper part of the valve body or the lower part of the valve body of the valve member is a substantially rotating body centered on the rotation axis of the rotation lock in a portion other than the holding portion. The valve body of the valve member according to paragraph 0009 , which is characterized by having a shape.

The present invention according to claim 4 is characterized in that, in the valve body of the valve member, the rotation lock structure is a fitting structure in which the engagement cannot be disengaged after the engagement is completed. The valve body of the valve member according to any one of paragraphs 0010 .

In the present invention according to claim 1, in the valve body of the valve member, the valve body is composed of the upper part of the valve body and the lower part of the valve body, and the fitting connection between the upper part of the valve body and the lower part of the valve body is engaged by rotation. It has a rotation lock structure. Even if the valve member including the valve body is moved in the vertical direction with respect to the drain port when opening and closing the drain port, the direction of the operation / stress applied to the valve body is the vertical reciprocating linear direction, whereas the valve body The direction of the mating connection between the upper part and the lower part of the valve body is the rotation direction, and the directions are clearly different. Further, when this valve member is attached to the drain port and used, the direction of operation of the valve member including the valve body is the vertical direction, whereas the direction of the rotation lock is the direction of rotation parallel to the horizontal plane. Since the direction of stress on the rotation lock differs by 90 degrees, even if the valve member including the valve body moves up and down due to opening and closing, no stress acts in the direction of releasing the rotation lock of the upper part of the valve body and the lower part of the valve body, and the rotation lock Is not released, and the upper part of the valve body and the lower part of the valve body are not separated.
Further, a through hole is provided in the lower part of the valve body, and a fitting portion in which the mold cannot be removed from only one of the through holes is provided in the through hole. When the valve body is integrally molded, not from the upper part of the valve body and the lower part of the valve body, a hole for fitting the valve shaft (naturally, it opens only below the valve body and is above the valve body). The fitting portion provided along the inner peripheral edge of (not opened) may have a shape in which the mold cannot be removed from only one of the through holes. However, in the present invention, since the valve body is composed of the upper part of the valve body and the lower part of the valve body, a portion provided in the through hole of the lower part of the valve body and having a shape that cannot be removed downward is provided. By forming the fitting portion so as not to have a shape that cannot be removed from above the through hole, the fitting portion can be formed without any trouble in the through hole. By using this fitting portion, for example, a valve shaft can be fitted and attached to the through hole.
According to the second aspect of the present invention, in the fitting connection between the upper part of the valve body and the lower part of the valve body by the rotation lock, the holding portion is provided on either one or both of the upper part of the valve body and the lower part of the valve body, so that the rotation When locking, the rotation work can be easily performed. This configuration of the holding portion functions particularly effectively when the portion other than the holding portion has a rotating body shape as in claim 3 .
In the invention according to claim 4 , the connection between the upper part of the valve body and the lower part of the valve body is fitted and killed so that the upper part of the valve body and the lower part of the valve body do not separate after the connection.

It is sectional drawing of the valve body of 1st Example. It is a perspective view from above which shows the member structure of the valve body of 1st Example. It is a perspective view from the bottom which shows the member composition of the valve body of 1st Example. It is sectional drawing at the AA position of FIG. 1 which shows the assembly procedure of a valve body. It is sectional drawing at the AA position of FIG. 1 which shows the assembly procedure of a valve body. It is sectional drawing at the AA position of FIG. 1 which shows the assembly procedure of a valve body. It is sectional drawing which shows the valve member of 1st Example. It is sectional drawing which shows the member structure of the valve member of 1st Example. It is sectional drawing which shows the drainage pipe which adopted the valve member of 1st Example, and cut out a part. It is (a) the perspective view from the lower part and (b) the bottom view of the lower part of the valve body of another Example. It is (a) the perspective view from the lower part and (b) the bottom view of the lower part of the valve body of another Example. It is a perspective view from the bottom which shows the member composition of the valve body of another Example.

The first embodiment of the present invention will be described below with reference to the drawings.
The valve body 1 of the valve member B of the first embodiment of the present invention shown in FIGS. 1 to 9 is composed of the following members and is arranged at a drain port H provided with a remote-controlled drain plug device. Will be done.
The valve member B described in the first embodiment of the present invention is composed of the valve body 1, the valve shaft 2, and the hair catcher 3 described below.
The valve body 1 is a disk-shaped member that closes the drain port H by covering the drain port H from above, and is described below in the valve body upper portion 6, the valve body lower portion 8, the annular packing 11, and the annular packing 11. Consists of.
The valve body upper portion 6 is a disk-shaped member forming an arc that is nearly circular in a plan view and flat in a side view, and as a whole, forms a substantially rotating body shape centered on the central axis of the upper cylinder portion 6a described later. The "abbreviated" rotating body shape is used because the engaging portion 7 and the marker portion 10 described later do not match the rotating body shape, but at the time of assembly, the engaging portion 7 is arranged inside the valve body 1. Since it cannot be touched and the marker portion 10 is formed by minute dents, it does not cause any effect or influence beyond visual recognition. Therefore, the valve body upper portion 6 can be treated in the same manner as the rotating body shape in terms of functionality such as weight balance and design shape.
Further, in the vicinity of the edge of the disk of the valve body upper portion 6, an upper cylinder portion 6a forming a cylindrical shape from the lower surface of the disk is provided, and on the inner surface of the upper cylinder portion 6a, four rotation locks are provided along the peripheral edge. The engaging portion 7 for performing the above is provided.
The engaging portion 7 will be described in detail. When viewed from the central axis direction, the engaging portion 7 is provided with a guide portion 7a having a substantially L-shape and a guide portion 7a below the guide portion 7a, as shown in FIG. It is composed of an upper wedge portion 7b having a triangular shape when viewed from the bottom.
The engaging portion 7 has an undercut shape. That is, if the mold inside the valve body upper portion 6 is moved downward as it is after molding and is attempted to be pulled out from the valve body upper portion 6, the upper portion of the engaging portion 7 cannot be pulled out. However, as is clear from FIG. 3 and the like, among the circumferences of the upper cylinder portion 6a, the circumference of the portion not having the guide portion 7a is larger than the circumference of the portion having the guide portion 7a. By rotating the mold inside the upper portion 6 and rotating the mold portion located above the guide portion 7a to a position where the guide portion 7a does not exist, the mold inside the valve body upper portion 6 can be pulled out downward. it can.
The valve body lower portion 8 is a member having a substantially disk shape and a substantially cylindrical shape below the valve body lower portion 8, and as a whole, forms a substantially rotating body shape centered on the central axis of the lower tubular portion 8a described later. The "abbreviated" rotating body shape is used because the engaged portion 9, the holding portion 4, and the marker portion 10, which will be described later, do not match the rotating body shape. However, when assembled, the engaged portion 9 is a valve body. Since it is arranged inside the 1 and cannot be touched, and the marker portion 10 is formed by a minute dent, the effect / influence beyond visual recognition is not produced. The holding portion 4 is also below the valve body 1 and is provided symmetrically with respect to the central axis. Therefore, the valve body upper portion 6 can be treated in the same manner as the rotating body shape in terms of functionality such as weight balance and design shape.
Further, a lower cylindrical portion 8a having a cylindrical shape is provided on the upper surface of the disk portion of the lower portion 8 of the valve body.
The lower tubular portion 8a is configured to abut on the inner surface of the upper tubular portion 6a, to be exact, the side surface of the guide portion 7a at the time of assembly, and the lower tubular portion 8a is inserted into the upper tubular portion 6a. , The lower tubular portion 8a can be rotated on the inner surface along the outer surface of the upper tubular portion 6a.
Further, the outer surface of the upper tubular portion 6a is provided with engaged portions 9 that engage with the engaging portions 7 at four locations along the peripheral edge.
To elaborate on the engaged portion 9, the engaged portion 9 is located above the guide portion 7a of the engaging portion 7 at the time of mating connection, and is located on one side surface (direction in which rotation proceeds during rotation lock). ) And a linear rib piece 9a along the peripheral edge of the lower tubular portion 8a that abuts on the lower surface, and a lower wedge that is provided below the rib piece 9a and that engages with the upper wedge portion 7b and has a triangular shape in the bottom view. It is composed of a part 9b.
Further, in the center of the cylindrical portion of the lower portion 8 of the valve body, a through hole 5 penetrating vertically is provided in which the valve shaft 2 described later is inserted, and the inner peripheral surface of the through hole 5 is provided with the entire circumference along the peripheral edge. Is provided with a ridge portion 5a as a fitting portion.
The ridge portion 5a has an undercut shape with respect to the lower part of the valve body lower portion 8. That is, if the mold inside the through hole 5 of the lower part of the valve body 8 is moved downward as it is after molding and is to be pulled out from the lower part of the valve body 8, the upper part of the ridge portion 5a cannot be pulled out. It has become. Since the ridge portion 5a is formed over the entire circumference, unlike the case of the engaging portion 7, it is impossible to rotate the mold and then pull it downward, but the through hole 5 is the lower part of the valve body. Since it penetrates to the upper part of 8, the mold can be pulled out without any problem by taking out the upper surface portion of the ridge portion 5a from above the upper portion 6 of the valve body.
Further, at the lower end of the cylindrical portion of the lower portion 8 of the valve body, a holding portion 4 formed of a flat surface having a central axis of the lower tubular portion 8a of the lower portion 8 of the valve body as a symmetrical axis and a part of the arc cut out in a plane is provided. Be prepared.
Further, each lower surface of the valve body upper portion 6 and the valve body lower portion 8 is provided with a marker portion 10 having a triangular shape represented by a recess having a depth of about 0.2 mm at the peripheral edge portion. The marker portion 10 is provided at a position where the rotation lock is completed when the upper portion 6 of the valve body and the lower portion 8 of the valve body are connected and fitted by rotating the marker portion 10 to a position where the triangular vertices of the marker portion 10 face each other. Become.
The annular packing 11 is a ring-shaped packing arranged on the outer surface of the upper tubular portion 6a of the upper portion 6 of the valve body, and includes a fin portion 11a on the outer surface that is in watertight contact with the peripheral edge of the drain port H. It becomes.
The valve shaft 2 is a metal rod-shaped member, and a concave groove portion 2a that fits with a ridge portion 5a provided in a through hole 5 of the valve body 1 is provided at the upper end thereof, and a hair catcher 3 is provided on a side surface thereof. A stopper is provided so as to stop at an intermediate position of the valve shaft 2.
The hair catcher 3 is a member having a function as a guide for collecting hair, dust and the like in drainage and preventing the valve body 1 and the valve shaft 2 from tilting when moving up and down, and the center thereof. Is provided with a hole, and the hole is penetrated through the valve shaft 2 so as to slidably move with respect to the side surface of the valve shaft 2.
The outer surface of the outer ring comes into contact with the inner surface of the drain port H when the construction is completed.
Further, as a tool for assembling the valve body 1 of the valve member B, although not shown, a wrench member having a U-shaped portion at the end of the rod-shaped body is used. The width of the parallel portion of the U-shaped portion of the wrench member is substantially the same as the width of the flat surfaces of the holding portion 4, and the U-shaped portion is slightly wider.

The valve member B described in paragraph 001 4 is connected to the drain port H described below.
The drainage port H is an opening provided on the bottom surface of the tank body such as a bathtub or a washbasin, and is connected to a pipe on the sewage side via a drainage pipe, and drainage in the tank body is connected to the drainage port H and the drainage pipe. It is discharged to the sewage side via.
Further, the drainage port H of the present embodiment is provided with a remote-controlled drainage plug device that opens and closes the drainage port H by operating the operation unit S located at a position away from the drainage port H.
The remote-controlled drain plug device is provided in the drain port H and has a support shaft J whose tip is arranged below the valve shaft 2 of the valve member B, and an operation for freely advancing and retreating the support shaft J. It is composed of a portion M and a release wire R that transmits the operation of the operation portion S to the support shaft J.

Each member of the valve member B configured as described in paragraph 001 4 is assembled as follows and arranged at the drain port H described in paragraph 001 5 .
First, the valve body 1 is assembled by the following procedure.
First, the annular packing 11 is arranged on the outer surface of the upper tubular portion 6a of the valve body upper portion 6.
Next, the upper portion 6 of the valve body and the lower portion 8 of the valve body are fitted and connected by a rotary lock.
Specifically, the lower cylinder portion 8a of the valve body lower portion 8 is inserted into the upper cylinder portion 6a of the valve body upper portion 6, and the valve body is in a state where the lower end of the upper cylinder portion 6a is in contact with the valve body lower portion 8. While fixing the upper part 6, the lower part 8 of the valve body is rotated. At this time, the lower portion 8 of the valve body can be easily rotated with respect to the upper portion 6 of the valve body by fitting the holding portion 4 of the lower portion 8 of the valve body into the U-shaped portion of the wrench member and rotating the lower portion 8.
When the lower portion 8 of the valve body is rotated with respect to the upper portion 6 of the valve body, the engaging portion 7 of the upper portion 6 of the valve body engages with the engaged portion 9 of the lower portion 8 of the valve body due to the engagement of the rotation lock.
By engaging the rotary lock, the following 1. To 4. The lower part 8 of the valve body is fitted and connected to the upper part 6 of the valve body for the above reason.
1. The lower end of the upper cylinder portion 6a abuts on the upper surface of the valve body lower portion 8, and the valve body lower portion 8 is fixed so as not to move further upward with respect to the valve body upper portion 6.
2. The rib piece 9a of the engaged portion 9 moves above the horizontal portion of the guide portion 7a of the engaging portion 7 by rotation, and the lower surface of the rib piece 9a abuts on the upper surface of the guide portion 7a, thereby lowering the valve body. The 8 is fixed so as not to move downward with respect to the upper portion 6 of the valve body.
3. One end of the rib piece 9a of the engaged portion 9 (the end portion on the direction side in which the rotation proceeds when the rotation is locked) abuts on the side surface of the vertical portion of the guide portion 7a of the engaging portion 7 by rotation. The lower part 8 of the valve body is fixed to the upper part 6 of the valve body so as not to move in the direction in which the rotation proceeds.
4. By engaging the upper wedge portion 7b and the lower wedge portion 9b, the valve body lower portion 8 is fixed so as not to move in the direction in which the rotation returns with respect to the valve body upper portion 6.
The engagement between the upper wedge portion 7b and the lower wedge portion 9b will be described in detail below with reference to FIGS. 4 to 6. In FIGS. 4 to 6, the annular packing 11 is not shown.
FIG. 4 is a cross-sectional view taken along the line AA of FIG. 1 in a state where the lower tubular portion 8a of the lower valve body 8 is inserted into the upper tubular portion 6a of the valve body upper portion 6.
From the state of FIG. 4, by fixing the valve body upper part 6 and rotating the valve body lower part 8 counterclockwise in the drawing, the inclined surface of the upper wedge portion 7b of the valve body upper part 6 becomes the valve body as shown in FIG. It abuts on the inclined surface of the lower wedge portion 9b of the lower portion 8.
When the rotation is further advanced, the inclined surface of the upper wedge portion 7b overcomes the inclination of the lower wedge portion 9b of the valve body lower portion 8, and the ends of the upper wedge portion 7b and the lower wedge portion 9b come into contact with each other as shown in FIG. Engage in this way. As a result, the lower portion 8 of the valve body is fixed so as not to move in the direction in which the rotation returns with respect to the upper portion 6 of the valve body.
In addition, the above 1. To 4. Since the engaging portion 7 and the engaged portion 9 are both inside the valve body 1, it cannot be directly visually confirmed whether or not the fixing work of the above is completed, but the upper wedge portion 7b determines the lower wedge portion 9b. It can be confirmed by visually observing the sound and feel when crossing the valve body and the movement of the triangular vertices of the marker portions 10 provided on the valve body upper part 6 and the valve body lower part 8 to opposite positions. ..
In the fitting connection between the upper valve body 6 and the lower valve body 8 by the rotation lock, the engagement between the upper wedge portion 7b and the lower wedge portion 9b is because there is no slit or the like for generating elasticity in both wedge portions. Very strong engagement. Even if there is no slit or the like, the upper wedge portion 7b engages beyond the lower wedge portion 9b at the time of rotation lock when moving with the triangular inclined surface as a guide, the upper cylinder portion 6a and the lower cylinder portion 8a. This is due to the bending of the entire surface, which is harder than the elasticity generated by providing a slit or the like. In this way, since the upper wedge portion 7b is forcibly crossed with respect to the lower wedge portion 9b, a strong stress is required for rotation. Therefore, when the wrench member is fitted into the holding portion 4 and rotated, a strong stress can be easily applied, and the work becomes easy. Further, it is practically impossible to rotate the valve body lower portion 8 in the return direction (direction in which the lower portion 8 of the valve body is rotated clockwise in FIGS. 4 to 6) after engagement because the function of the guide by the inclined surface does not occur. .. As a result, once the fitting connection by the rotation lock is performed, it becomes impossible to release the fitting connection of the rotation lock of the valve body upper part 6 and the valve body lower part 8. That is, the fitting connection by the rotation lock of the valve body upper part 6 and the valve body lower part 8 has a fitting and killing structure in which the fitting connection cannot be released after the fitting connection is completed.
When the rotation lock of the valve body upper part 6 and the valve body lower part 8 is completed, the upper part of the annular packing 11 is sandwiched between the valve body upper part 6 and the lower part is sandwiched between the valve body lower part 8 (that is, the valve body upper part). 6 and the lower part of the valve body 8 form a groove portion), and the annular packing 11 will not come off unless it is intentionally elastically deformed and removed from the valve body 1.
In this way, the assembly of the valve body 1 of this embodiment is completed.
Next, after inserting the valve shaft 2 into the hair catcher 3, the valve shaft 2 is inserted into the through hole 5 of the valve body 1, and the concave groove portion 2a of the valve shaft 2 is attached to and detached from the ridge portion 5a of the valve body 1. By freely fitting, the assembly of the valve member B as shown in FIG. 7 is completed.
The valve member B assembled as described above is arranged in the drain port H. At this time, the lower end of the valve shaft 2 is arranged so as to be located above the support shaft J. When the valve member B is arranged in the drain port H, the valve shaft 2 can be easily arranged so as to be located on the support shaft by the hair catcher 3 that functions as a guide.

By operating the operation unit of the remote-controlled drain plug device in the valve member B and the drain port H configured as described above, the support shaft in the drain port H selects either an ascending or descending operation. can do.
When the support shaft J rises, the lower end of the valve shaft 2 of the valve member B comes into contact with the tip of the support shaft J, and the valve shaft 2 and the valve member B rise, so that the valve body 1 is separated from the drain port H and drained. Open the mouth H. When the drainage port H is opened, the water discharged or drainage in the tank is discharged from the drainage port H to the sewage side via the drainage pipe P.
Further, when the support shaft J is lowered, the valve body 1 and the valve shaft 2 are also lowered along with the support shaft J, and the valve body 1 is closed so as to cover the drain port H. At this time, the fin portion 11a of the annular packing 11 comes into watertight contact with the peripheral edge of the upper edge of the drain port H, so that a watertight connection can be made. As a result, when water is discharged in the tank, the water can be stored in the tank.
In this way, the drainage port H can be opened and closed remotely by operating the operating body of the operation unit located away from the drainage port H and the valve member B.

In the valve body 1 of the valve member B configured as described above, the upper surface of the valve body upper portion 6 has a thick portion as the upper tubular portion 6a, but the other portions have a uniform wall thickness. Therefore, the sink mark structure described in the conventional example is unlikely to occur, and the design can be kept good.
Further, although the through hole 5 of the valve body lower part 8 has an undercut structure with respect to the lower part of the valve body lower part 8, since the upper part of the valve body lower part 8 is open, there is no problem in molding. ..
The direction of operation of the valve body 1 is the vertical direction based on the state in which the drain port H is closed at the completion of construction, but the fitting connection between the valve body upper part 6 and the valve body lower part 8 of the valve body 1 is Based on the state where the drain port H is closed, the direction of rotation by the rotation lock, that is, the movement in the horizontal direction, is perpendicular to the direction of operation of the valve body 1, and the direction and operation of releasing the rotation lock. Since the directions are different, the rotation locks of the valve body upper part 6 and the valve body lower part 8 are not released even if the valve body 1 is opened and closed. In particular, in this embodiment, the fitting connection between the valve body upper portion 6 and the valve body lower portion 8 has a fitting and killing structure using the engagement of the upper wedge portion 7b and the lower wedge portion 9b, and the fitting connection is released. Since this is not possible, the structure is such that the fitting connection between the valve body upper portion 6 and the valve body lower portion 8 is not released more reliably.

Examples of the present invention are as described above, but the present invention is not limited to the above examples, and can be freely changed without changing the gist.
For example, the valve body 1 is composed of the valve body upper part 6 and the valve body lower part 8 for the purpose of design in the above-mentioned conventional example, and for the design property and the undercut shape solution of the ridge portion 5a of the valve body lower part 8 in the embodiment. However, the reason why the valve body 1 is composed of the valve body upper part 6 and the valve body lower part 8 is not limited to the above reason, and the weight is adjusted by arranging a weight inside the valve body 1 or the like. There is no limitation on the reason why the valve body 1 is composed of the valve body upper part 6 and the valve body lower part 8 such as for changing the material between the valve body lower part 8 and the valve body upper part 6.
Further, in the above embodiment, the valve member B is composed of the valve body 1, the valve shaft 2, and the hair catcher 3, but the present invention is not limited to the above embodiment, and the valve body is as in the conventional example. The valve member B may be configured from only 1 or may be configured by adding a member other than the above.
Further, in the above embodiment, the valve member B including the valve body 1 is arranged at the drain port H provided with the remote-controlled drain plug device, but the valve member B of the present invention is limited to the above embodiment. It may be used for a drainage port H that is not provided with a remote-controlled drainage plug device and has only an opening.
When the valve body 1 of the valve member B of the present invention is adopted for the drain port H not provided with such a remote-controlled drain plug device, a mounting portion is provided on the upper surface of the valve body 1 to connect the chain body, and the chain is connected. It is preferable to remove the valve body 1 from the drain port H by pulling up the valve body 1 using the body.
Further, the portion where the holding portion 4 is provided is not limited to the lower portion 8 of the valve body, and the holding portion 4 may be provided in the upper portion 6 of the valve body, for example, the attachment portion for attaching the chain body described above. ..
Further, the shape of the holding portion 4 is not limited in any way. For example, instead of the two parallel flat surfaces provided on the substantially cylindrical shape of the above embodiment, the shape of the holding portion 4 is formed on the substantially cylindrical shape as shown in FIG. A surface having a regular polygonal regular polygonal shape when viewed from the bottom is provided as a holding portion 4, or as shown in FIG. 11, instead of the side surface of a protruding portion such as a substantially cylindrical shape, the surface is positive below the lower portion 8 of the valve body. A polygonal recessed portion may be formed and this recessed portion may be used as the holding portion 4.
In another embodiment in which the valve body lower portion 8 shown in FIGS. 10 and 11 is adopted, the configuration of the valve body lower portion 8 other than the holding portion 4 is the same as in the first embodiment. Further, the assembling method and the usage method are the same as those in the first embodiment except that a jig or a member suitable for the shape of each holding portion 4 is used instead of the wrench member.
Further, as shown in FIG. 12, the holding portion 4 is removed from the lower portion 8 of the valve body, and instead, a plurality of vertical grooves are provided on the side surface of the upper tubular portion 6a of the upper portion 6 of the valve body to form the holding portion 4, and the holding portion 4 has a plurality of vertical grooves. The upper portion 6a of the valve body may be rotated by using a wrench member that meshes with each other. In this case, the lower part 8 of the valve body is fixed and the upper part 6 of the valve body is rotated to lock the rotation. Therefore, it is necessary to attach the annular packing 11 after the connection fitting of the valve body upper part 6 and the valve body lower part 8 by the rotation lock is completed.
In another embodiment in which the valve body upper part 6 and the valve body lower part 8 shown in FIG. 12 are adopted, a vertical groove which is a holding part 4 of the valve body lower part 6 is provided, and a holding part from the valve body lower part 6 is provided. The configuration is the same as that of the first embodiment except that 4 is omitted. Further, the assembly method and the usage method are almost the same as those in the first embodiment except that a jig or member suitable for the shape of the holding portion 4 is used instead of the wrench member (in the assembly of the valve body 1, the lower part of the valve body). 8 is fixed, the upper portion 6 of the valve body is rotated to lock the rotation, and then the annular packing 11 is attached, which is different from the first embodiment).
If the upper part 6 of the valve body and the lower part 8 of the valve body are all formed into a rotating body shape, it may be difficult to hold and rotate the member even when a strong stress is required for rotation. By providing the holding portion 4 composed of the non-rotating body-shaped portion in the valve body upper part 6 or the valve body lower part 8, it becomes easy to apply rotation to the valve body upper part 6 and the valve body lower part 8, and the rotation lock is used. The mating connection can be easily and surely performed.
Further, in the above embodiment, the valve shaft 2 for the remote control type drain plug device is fitted in the through hole 5 of the valve body 1, but the present invention is not limited to the above embodiment. A shaft body for simply fixing the hair catcher 3 to the valve body 1 or a shaft portion provided on the top surface of the tank body is provided, and when the valve body 1 is not used (when the drain port H is not blocked), the shaft is provided. It can be used for various methods such as connecting to a unit and using it as a storage place.

1 Valve body 2 Valve shaft 2a Concave groove 3 Hair catcher 4 Holding part 5 Through hole 5a Protruding part 6 Valve body upper part 6a Upper cylinder part 7 Engagement part 7a Guide part 7b Upper wedge part 8 Valve body lower part 8a Lower cylinder part 9 Engagement part 9a Rib piece 9b Lower wedge part 10 Marker part 11 Circular packing 11a Fin part B Valve member H Drainage port J Support shaft M Actuating part P Drainage pipe R Release wire S Operation part

Claims (4)

A valve member that closes the drainage port provided on the bottom of the tank body.
The valve member is provided with a valve body that covers the drain port and is provided with a valve body.
The valve body,
The upper part of the valve body, which has a substantially flat plate shape with an engaging part,
A substantially flat plate-shaped lower part of the valve body having an engaged portion that engages with the engaging portion, and
Consists of
Engaging portion and the engaged portion is engaged is performed by rotation, I rotational locking structure der,
In the valve body of the valve member
A through hole is provided in the lower part of the valve body to penetrate the lower part of the valve body.
The inner peripheral surface of the through hole is provided with a fitting portion having a shape in which the mold cannot be removed from only one of the through holes along the peripheral edge.
A valve body of a valve member , which is characterized in that . In the valve body of the valve member
The valve body of the valve member according to claim 1, wherein a holding portion made of a non-rotating body-shaped portion is provided on either one or both of the upper part of the valve body and the lower part of the valve body of the valve member . In the valve body of the valve member
Valve top or the valve body lower portion of the valve member, in a portion other than the holding portion, about the rotation axis of the rotary lock, characterized in that a substantially rotating body shape, the valve member according to claim 2 Valve body . The valve body of the valve member according to any one of claims 1 to 3 , wherein the rotary lock structure is a fitting structure in which the engagement cannot be disengaged after the engagement is completed. ..

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