JP7039383B2 - Toilet connection pipe and toilet device - Google Patents

Description

The present invention relates to a toilet connection pipe and a toilet bowl device.

Conventionally, a toilet device including a toilet bowl cleaning tank and a drainage port forming member attached to the bottom of the toilet bowl cleaning tank to form a drainage port is known (see, for example, Patent Document 1). A cylindrical opening is formed at the bottom of the toilet bowl cleaning tank, and a drainage port forming member having a drainage port formed is fixed to the inside of the tubular opening via an O-ring.

Japanese Patent No. 5354521

The toilet bowl cleaning tank described in Patent Document 1 is configured by injection molding resin in a mold, but it is considered that the toilet bowl cleaning tank is molded by blow molding due to the demand for thinning of the toilet bowl cleaning tank. Be done.

However, when the toilet bowl cleaning tank is molded by blow molding, it is not possible to form a tubular opening at the bottom of the toilet bowl cleaning tank to hold the drainage port forming member in which the drainage port is formed. , Through holes are formed. Therefore, when the toilet bowl cleaning tank is molded by blow molding, a tubular member (cylindrical) for holding the drainage port forming member in which the drainage port is formed in the through hole formed at the bottom of the toilet bowl cleaning tank. It is necessary to attach the member). However, when a male screw is formed on the outer peripheral surface of the tubular member in order to fix the tubular member to the bottom of the toilet bowl cleaning tank, the outer peripheral surface of the tubular member is deformed by so-called "sink" due to the uneven thickness, and the O-ring is formed. Therefore, it becomes impossible to secure the seal between the inner peripheral surface of the tubular member and the drainage port forming member.

The present invention provides a toilet connection pipe and a toilet device that ensure a seal between a toilet connection pipe, which is a tubular member attached to a through hole at the bottom of a toilet cleaning tank, and a drainage port forming member. The purpose.

The present invention includes a tubular portion (for example, a tubular portion 464 described later) and a male screw portion (for example, a male screw portion 4641 described later) formed on the outer peripheral surface of the tubular portion, and the male screw portion is provided. It has a first O-ring portion (for example, a first O-ring portion 4642 described later) and a second O-ring portion (for example, a second O-ring portion 4643 described later) which are divided into two and adjacent to each other. The present invention relates to a toilet connecting pipe in which an O-ring (for example, an O-ring 26b described later) is arranged between the second male threads.

Further, the length between the first male threaded portion and the second male threaded portion in the axial direction of the tubular portion (for example, the height L1 described later) is the wire diameter of the O-ring (for example, the height described later). It is preferably longer than L2).

Further, a first nut (for example, a tightening nut 46b described later) is screwed and fixed to the first male threaded portion, and the height of the female threaded portion formed on the inner surface of the first nut (for example, the height described later). L3) is preferably larger than the length between the first male threaded portion and the second male threaded portion.

Further, a toilet device (for example, a toilet device described later) including a toilet body (for example, the toilet body 21 described later) and a washing water tank (for example, the toilet washing tank 4 described later) arranged above the toilet body. A drainage port forming member (for example, a connection socket 26 described later) provided at the bottom of the washing water tank of 1) and having a drainage port (for example, a drainage port 26f described later) formed is supported via the O-ring. It is preferable to do so.

Further, the present invention is provided in the toilet bowl main body (for example, the toilet bowl main body 21 described later), the washing water tank arranged above the toilet bowl main body (for example, the toilet bowl washing tank 4 described later), and the flush water tank. A toilet connecting pipe (for example, a valve seat seat 46 described later), a male screw portion formed on the outer peripheral surface of the toilet connecting pipe (for example, a male screw portion 4641 described later), and an inner circumference of the toilet connecting pipe. An O-ring (for example, O-ring 26b described later) provided on the surface and a drain port (for example, drain port 26f described later) are formed, and the drain port is supported by the toilet connecting pipe via the O-ring. A forming member (for example, a connection socket 26 described later) is provided, and the male threaded portion is divided into two and adjacent to each other with a first male threaded portion (for example, a first male threaded portion 4642 described later) and a second male threaded portion (for example, described below). The present invention relates to a toilet bowl device having a second male threaded portion (4643) described later and an O-ring (for example, an O-ring 26b described later) arranged between the first male threaded portion and the second male threaded portion.

Further, it is preferable that the washing water tank is made of a resin material formed by blow molding.

Further, the present invention includes a toilet bowl device (for example, a toilet bowl washing tank 4 described later) including a toilet bowl main body (for example, a toilet bowl main body 21 described later) and a washing water tank (for example, a toilet bowl washing tank 4 described later) arranged above the toilet bowl main body. A toilet connecting pipe (for example, a valve seat seat 46 described later) provided in a toilet device 1) described later, which is provided on a tubular portion (for example, a tubular portion 464 described later) and an outer peripheral surface of the tubular portion. An O-ring (for example, an O-ring 26b described later) provided with a formed male screw portion (for example, a male screw portion 4641 described later) and arranged on the inner peripheral surface of the tubular portion in the radial direction of the tubular portion. ), The portion of the outer peripheral surface of the tubular portion having the outer peripheral surface portion (for example, the outer peripheral surface portion 4644 described later) on which the male screw portion is not formed, and the male screw portion is in the axial direction of the tubular portion. The present invention relates to a toilet connecting pipe having a first male threaded portion (for example, a first male threaded portion 4642 described later) and a second male threaded portion (for example, a second male threaded portion 4643 described later) divided into at least two by the outer peripheral surface portion.

INDUSTRIAL APPLICABILITY According to the present invention, there is provided a toilet connecting pipe and a toilet device that ensure a seal between a toilet connecting pipe, which is a tubular member attached to a through hole at the bottom of a toilet cleaning tank, and a drainage port forming member. be able to.

It is a perspective view of the toilet bowl device which concerns on this invention. It is a perspective view which shows by disassembling a part of the toilet bowl cleaning apparatus of the toilet bowl apparatus which concerns on this invention. It is sectional drawing explaining the connection structure of the toilet bowl cleaning tank of the toilet bowl apparatus which concerns on this invention, and the toilet bowl main body. It is an enlarged sectional view explaining the connection structure of the toilet bowl cleaning tank of the toilet bowl apparatus which concerns on this invention, and the toilet bowl main body. It is a side view which shows the valve seat seat of the toilet bowl device which concerns on this invention. It is a side view which shows the appearance that the tightening nut was attached to the valve seat seat of the toilet bowl device which concerns on this invention. It is a lower perspective view which shows the valve seat seat of the toilet bowl device which concerns on this invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
As shown in FIG. 1, the toilet bowl device 1 shown in the present embodiment includes a toilet bowl 2 and a toilet bowl cleaning device 3. In the following description, the front-back direction when viewed from the user sitting on the toilet bowl 2 is referred to as the front-back direction. Further, the left-right direction when viewed from the user sitting on the toilet bowl 2 is the width direction. Further, the vertical direction along the vertical direction with respect to the floor surface on which the toilet bowl 2 is installed is defined as the vertical direction.

The toilet bowl 2 has a toilet seat 22 and a toilet lid 23 rotatably attached to the upper part of the toilet bowl main body 21, and a functional portion 24 of the toilet seat device. This toilet bowl 2 is a flush valve type toilet bowl, and as shown in FIGS. 2 and 3, has a spud 25 projecting upward on the upper surface 21a of the rear portion of the toilet bowl main body 21. As shown in FIG. 3, the spud 25 is attached to the washing water inflow port 21b formed in the toilet body 21 via the packing 25a and the nut 25b.

As shown in FIG. 1, the toilet bowl cleaning device 3 has a toilet bowl cleaning tank 4 and a tank cover 5 that covers the toilet bowl cleaning tank 4. A lever handle 5a for cleaning operation is provided on the side surface of the tank cover 5.
As shown in FIG. 2, the toilet bowl cleaning tank 4 includes a tank main body 41, an inner lid 42, a base plate 43, a dew-proof material 44, and a reinforcing frame 45. In FIG. 2, the toilet seat 22, the toilet lid 23, the functional unit 24, and the lever handle 5a are not shown.

The tank body 41 is a blow-molded product, and is composed of a resin member molded by blow molding. Since the tank body 41 does not need to be provided with a draft for removing the mold in the vertical direction unlike the injection molded product, the outer peripheral surface of the tank body 41 becomes a straight surface along the vertical direction and is on the floor surface. On the other hand, a side wall surface extending vertically can be formed. Therefore, the decrease in the tank volume due to the draft is small, and it is possible to secure a large tank volume as compared with the injection molded product. Washing water is stored inside the tank body 41, and known internal parts (not shown) for cleaning the toilet bowl are housed.
The inner lid 42 is screwed to the tank body 41 so as to cover the upper part of the tank body 41.

The base plate 43 is attached to the lower part of the tank body 41. The base plate 43 is made of a resin that is harder than the tank body 41, and has a planar shape substantially equal to the bottom surface shape of the tank body 41.

The mounting structure of the tank body 41 and the base plate 43 is shown in FIG. As shown in FIG. 3, a lower surface opening 412, which is a circular through hole, is formed on the bottom surface 411 of the tank body 41. A substantially cylindrical valve seat 46 as a connecting pipe is penetrated and fixed and mounted on the lower surface opening 412. The valve seat 46 is a component that constitutes the valve seat of a flapper valve (not shown), which is one of the internal components of the tank body 41, and has a flange portion 461 having a diameter larger than that of the lower surface opening 412. There is. The valve seat 46 is mounted from the inside of the tank body 41 so as to sandwich the flat packing 46a between the flange portion 461 and the tank body 41. The valve seat 46 integrally has a cylindrical portion 462 having a male screw portion 4641 (see FIG. 5 and the like) on the outer peripheral surface below the flange portion 461, and the cylindrical portion 462 is downward from the lower surface opening 412. It stands out. The valve seat 46 is attached to the tank body 41 by screwing a tightening nut 46b from the outside of the tank body 41 into a cylindrical portion 462 protruding from the lower surface opening 412.

On the other hand, a circular opening 431 is provided in the central portion of the base plate 43, and a cylindrical portion 462 of the valve seat seat 46 protruding from the lower surface of the tank body 41 is inserted into the opening 431.
Then, the tightening nut 46c is screwed into the cylindrical portion 462 protruding downward from the opening 431, so that the base plate 43 is sandwiched between the tightening nut 46c and the tank body 41. As a result, the base plate 43 is fixed to the lower part of the tank body 41.

A pair of projecting portions 432 are provided on the lower surface of the base plate 43 so as to sandwich the cylindrical portion 462 of the valve seat seat 46, and tightening bolts 433 are provided so as to project downward from the projecting portions 432. .. The protrusion 432 has a protrusion height comparable to the protrusion height of the cylindrical portion 462 of the valve seat seat 46 that protrudes from the lower part of the tank body 41. The tightening bolt 433 fixes the tank mounting plate 6 mounted on the upper surface 21a of the toilet body 21.

The tank mounting plate 6 has a rectangular plate-shaped plate main body 61 and a pair of bolt mounting legs 62 protruding upward from the upper surface of the plate main body 61. The plate body 61 is provided with a circular opening 63 between the pair of bolt mounting legs 62. The pair of bolt mounting legs 62 are provided corresponding to the positions of the pair of protrusions 432 of the base plate 43. The bolt mounting leg 62 has a protruding height similar to the protruding height of the spud 25 from the upper surface 21a of the toilet body 21.

The pair of tightening bolts 433 of the base plate 43 are fixed to the pair of bolt mounting legs 62 of the tank mounting plate 6 by nuts 433a, respectively. As a result, the tips of the pair of protrusions 432 of the base plate 43 and the tips of the pair of bolt mounting legs 62 of the tank mounting plate 6 come into contact with each other, and the tank mounting plate 6 is fixed to the base plate 43. The tank mounting plate 6 is placed on the upper surface 21a on the rear side of the toilet bowl body 21 by inserting the spud 25 into the opening 63. At this time, the lower surface of the base plate 43 (lower surface of the toilet bowl cleaning tank 4) 43a is arranged above the spud 25, and the entire spud 25 is sufficiently between the base plate 43 and the plate body 61 of the tank mounting plate 6. The height that can be accommodated is secured.

As shown in FIG. 3, the cylindrical portion 462 of the valve seat seat 46 protruding from the lower part of the tank body 41 and the spud 25 protruding from the upper surface 21a of the toilet body 21 have a drainage port 26f of the tank body 41 formed inside. It is connected by a cylindrical connection socket 26 as a drainage port forming member. The lower end side of the connection socket 26 is inserted inside the spud 25 and fixed by a cap nut 26a. The upper end side of the connection socket 26 is watertightly inserted into the inside of the cylindrical portion 462 of the valve seat seat 46 by an O-ring 26b. As a result, the washing water in the tank body 41 is supplied to the toilet body 21 via the cylindrical portion 462 of the valve seat seat 46, the connection socket 26, and the spud 25.

As shown in FIG. 2, the tank mounting plate 6 has a pair of through holes 64 corresponding to a pair of toilet seat mounting holes 21c provided on the upper surface 21a on the rear side of the toilet body 21. The tank mounting plate 6 is placed on the upper surface 21a of the toilet bowl body 21 so that the through hole 64 matches the toilet seat mounting hole 21c. Then, a pair of mounting bolts (not shown) projecting from the lower surface of the functional portion 24 of the toilet seat device penetrates the through hole 64 of the tank mounting plate 6 and is inserted into the toilet seat mounting hole 21c of the toilet body 21, and the toilet body 21 The functional portion 24 is fixed to the toilet bowl main body 21 by sandwiching and tightening with a nut (not shown). As a result, the tank mounting plate 6 is sandwiched between the functional portion 24 and the toilet bowl main body 21, and the toilet bowl cleaning tank 4 on the tank mounting plate 6 is fixed to the toilet bowl main body 21. At this time, since a height sufficient to accommodate the entire spud 25 is secured between the base plate 43 and the plate body 61 of the tank mounting plate 6, the upper surface 21a (tank) of the base plate 43 and the toilet body 21 is secured. A space portion accessible to the spud 25 is formed between the mounting plate 6 and the plate body 61).

Here, "accessible to the spud" means the spud 25 and the parts around the spud 25 (cylindrical portion 462 of the valve seat seat 46, tightening nut 46c, connection socket 26, cap nut 26a, nut 25b, tightening bolt). It includes not only being able to directly see the situation of 433, nut 433a, etc.), but also being able to directly operate the spud 25 and the parts surrounding the spud 25. As a direct operation on the spud 25 and the parts around the spud 25, a cap nut 26a for fixing the connection socket 26 and a nut 433a for the tightening bolt 433 are used as a tool for attaching or detaching the toilet bowl cleaning tank 4. Includes rotation operation.

The dew-proof material 44 is formed of a styrofoam resin or the like into a shape along the outer peripheral surface of the tank body 41. The dew-proof material 44 shown in the present embodiment is attached so as to sandwich the tank body 41 from the front-rear direction.

As shown in FIG. 2, the reinforcing frame 45 has a metal side frame member 451 arranged on both side surfaces of the toilet bowl cleaning tank 4 and a metal arranged so as to extend in the width direction on the front surface side of the toilet bowl cleaning tank 4. It has a reinforcing stay 452 made of metal. Both ends of the reinforcing stay 452 are connected to the left and right side frame members 451. The side frame members 451 are screwed to both end faces 43b (see FIG. 3) in the width direction of the base plate 43, respectively. The side frame member 451 is formed in a U-shape in a plan view.

The reinforcing frame 45 functions so that when the user leans against the toilet bowl cleaning device 3, the load is received and the load is not directly applied to the tank body 41. The load acting on the reinforcing stay 452 is transmitted to each side frame member 451 from both ends of the reinforcing stay 452. Since the side frame member 451 is fixed to the base plate 43 which is more robust than the tank body 41, the load transmitted from the reinforcing stay 452 can be effectively received.

The tank cover 5 has a front cover 51 that covers the front of the toilet bowl cleaning tank 4, a rear cover 52 that covers the sides and the rear of the toilet bowl cleaning tank 4, and an upper cover 53 that covers the upper side of the toilet bowl cleaning tank 4. ing. The rear cover 52 is screwed to the side frame members 451 provided on both sides of the toilet bowl cleaning tank 4. The front cover 51 and the upper cover 53 are detachably attached to the rear cover 52. As shown in FIG. 1, the front cover 51 and the rear cover 52 completely cover the front, side, and rear of the toilet bowl cleaning tank 4. As a result, the periphery of the spud 25 connected to the toilet bowl cleaning tank 4 is covered with the front cover 51 and the rear cover 52, so that the spud 25 is not exposed to the outside and the design is improved. The front cover 51 is attached to the rear cover 52 so as to be slidable up and down.

Next, the details of the valve seat 46 will be described. The valve seat 46 is made of resin and has an upper inflow portion 463 and a tubular portion 464 as shown in FIG. 5 and the like.

The upper inflow portion 463 has a main inflow cylinder portion 4631 and an overflow pipe connecting cylinder portion 4632. The main inflow cylinder portion 4631 is formed in a cylindrical shape having an opening 4631a whose upper end edge is shaped like a cylinder cut diagonally. The lower end of the main inflow cylinder portion 4631 is connected by being integrally molded with the upper end portion of the tubular portion 464. A flange portion 461 that protrudes outward in the radial direction of the main inflow cylinder portion 4631 is provided in a portion above the lower end portion of the main inflow cylinder portion 4631.

An overflow pipe connecting cylinder portion 4632 is connected to the side surface of the intermediate portion of the main inflow cylinder portion 4631. The overflow pipe connecting cylinder portion 4632 extends radially outward from the main inflow cylinder portion 4631 from the side surface of the intermediate portion of the main inflow cylinder portion 4631, and then parallel to the axis of the main inflow cylinder portion 4631, the main inflow. It extends to a position above the upper end of the tubular portion 4631.

The tubular portion 464 is formed in a cylindrical shape. A male screw portion 4641 is formed on the outer peripheral surface of the tubular portion 464, and no male screw or the like is formed on the inner peripheral surface of the tubular portion 464. It is composed of an inner peripheral surface portion 4646 (see FIG. 7) in which the curved surface remains as it is. The male threaded portion 4641 has a first male threaded portion 4642 and a second male threaded portion 4643 having the same pitch, outer diameter, effectiveness, valley diameter, thread angle, and helix angle, respectively. Therefore, the tightening nut 46b as the first nut, which will be described later, can be screwed into the first male threaded portion 4642 after being screwed into the second male threaded portion 4643 and moved upward.

As shown in FIG. 5, the first male threaded portion 4642 is located above the second male threaded portion 4643, that is, on the side closer to the upper inflow portion 463. The portion between the first male threaded portion 4642 and the second male threaded portion 4643 is composed of an outer peripheral surface portion 4644 in which the male threaded portion 4641 is not formed and the curved surface of the outer peripheral surface of the cylindrical tubular portion 464 remains as it is. Has been done.

A tightening nut 46b is screwed and fixed to the first male threaded portion 4642. Specifically, the upper end portion of the first male threaded portion 4642 is provided with a first nut flange portion 466b protruding outward in the radial direction from the upper end portion of the first male threaded portion 4642. As shown in FIG. 4, the upper surface of the first nut flange portion 466b is in contact with the lower surface (outer surface) of the bottom surface of the tank body 41. The upper surface (inner surface) of the bottom surface of the tank body 41 is in contact with the lower surface of the flat packing 46a arranged so as to surround the periphery of the through hole. The upper surface of the flat packing 46a is in contact with the lower surface of the flange portion 461. Therefore, the tightening nut 46b is screwed and fixed to the first male thread portion 4642 so that the bottom surface of the tank body 41 and the flat packing 46a are sandwiched between the first nut flange portion 466b and the flange portion 461. The valve seat seat 46 is fixed to the bottom surface of the tank body 41.

A tightening nut 46c as a second nut is screwed and fixed to the second male thread portion 4643. Specifically, the upper end portion of the second male threaded portion 4643 is provided with a second nut flange portion 466c protruding outward in the radial direction from the upper end portion of the second male threaded portion 4643. As shown in FIG. 4, the upper surface of the second nut flange portion 466c is in contact with the lower surface of the bottom surface of the base plate 43. As a result, the base plate 43 is supported by the valve seat seat 46 via the second nut flange portion 466c.

As shown in FIG. 4, a connection socket 26 is provided in the internal space of the valve seat 46 surrounded by the inner peripheral surface of the valve seat 46. The connection socket 26 has an upper supported portion 261 and a lower tubular portion 262, respectively, which are formed in a tubular shape. The inner peripheral surface of the upper supported portion 261 has the largest inner diameter in the uppermost portion of the upper supported portion 261, has a slightly smaller inner diameter than the upper inner diameter on the lower side thereof, and further has its inner diameter on the lower side thereof. It has a reduced diameter portion 261a whose inner diameter gradually decreases from the inner diameter immediately above.

An O-ring engaging groove formed so as to go around the outer peripheral surface of the upper supported portion 261 is formed on the outer peripheral surface of the upper supported portion 261, and the O-ring 26b is formed in the O-ring engaging groove. It is fitted and fixed to the upper supported portion 261.

As shown in FIG. 5, the position of the O-ring 26b fitted in the O-ring engaging groove is a position facing the outer peripheral surface portion 4644 in which the male screw portion 4641 is not formed in the radial direction of the tubular portion 464. be. That is, in the axial direction of the tubular portion 464 (vertical direction in FIG. 5), the outer peripheral surface portion 4644 on which the male screw portion 4641 is not formed faces each other from the upper end to the lower end of the O-ring 26b. The connection socket 26 is supported by the valve seat 46 in a state where the inner peripheral surface of the valve seat 46 and the upper supported portion 261 of the connection socket 26 are sealed by the O-ring 26b.

As shown in FIG. 5, in the axial direction (vertical direction in FIG. 5) of the tubular portion 464, the male threaded portion 4641 between the first male threaded portion 4642 and the second male threaded portion 4643 is not formed and has a cylindrical shape. The length L1 of the outer peripheral surface portion 4644 in which the curved surface of the outer peripheral surface of the tubular portion 464 remains as it is is longer than the wire diameter L2 of the O-ring 26b (the thickness of the O-ring 26b in the axial direction of the tubular portion 464). Further, the height of the female threaded portion formed on the inner surface of the tightening nut 46b in the axial direction of the tubular portion 464 (height between the uppermost portion and the lowermost portion of the female threaded portion formed on the inner surface of the nut 46b) L3 ( (See FIG. 6) is larger than the length L1 (see FIG. 5) of the outer peripheral surface portion 4644 of the tubular portion 464 in the axial direction.

As shown in FIG. 4, the lower tubular portion 262 has a cylindrical shape, and the upper end portion of the lower tubular portion 262 is connected by being integrally molded with the lower end portion of the upper supported portion 261. .. The lower portion of the lower tubular portion 262 is connected to the spud 25.

According to the toilet bowl device 1 of the present embodiment described above, the following effects are obtained.
The valve seat seat 46 as a connecting pipe for a toilet of the present embodiment includes a tubular portion 464 and a male screw portion 4641 formed on the outer peripheral surface of the tubular portion 464. In the radial direction of the tubular portion 464, the outer peripheral surface portion of the tubular portion 464 facing the O-ring 26b arranged on the inner peripheral surface of the tubular portion 464 has an outer peripheral surface portion 4644 on which the male screw portion 4641 is not formed. Have. The male threaded portion 4641 has a first male threaded portion 4642 and a second male threaded portion 4643 that are divided into two adjacent portions, and an O-ring 26b is arranged between the first male threaded portion 4642 and the second male threaded portion 4643. O-ring.

Further, the toilet device 100 of the present embodiment includes a toilet body 21, a toilet cleaning tank 4 arranged above the toilet body 21, a valve seat 46 as a connecting pipe provided in the toilet cleaning tank 4, and a valve. A male screw portion 4641 formed on the outer peripheral surface of the seat seat 46, an O-ring 26b provided on the inner peripheral surface of the valve seat seat 46, and a drain port are formed and supported by the valve seat seat 46 via the O-ring 26b. The connection socket 26 is provided.
The portion of the outer peripheral surface of the valve seat 46 facing the O-ring 26b in the radial direction of the valve seat 46 has an outer peripheral surface portion 4644 on which the male threaded portion 4641 is not formed. The male threaded portion 4641 has a first male threaded portion 4642 and a second male threaded portion 4643 that are divided into at least two by an outer peripheral surface portion 4644 in the axial direction of the valve seat seat 46.

The valve seat 46 is provided at the bottom of the toilet bowl cleaning tank 4 and supports the connection socket 26 in which the drain port is formed via the O-ring 26b.

Therefore, since the male screw portion is not formed on the outer peripheral surface of the tubular portion 464 facing the O-ring 26b, it is possible to suppress the occurrence of sink marks on the portion facing the O-ring 26b in the resin valve seat seat 46. It will be possible. Therefore, the O-ring 26b can be reliably sealed between the valve seat seat 46 and the connection socket 26.

Further, the length L1 of the outer peripheral surface portion 4644 in the axial direction of the tubular portion 464 is longer than the wire diameter L2 of the O-ring 26b. Therefore, it is possible to reliably suppress deformation due to sink marks on the inner surface of the valve seat 46 that the O-ring 26b abuts and seals. As a result, the sealing by the O-ring 26b can be performed more reliably.

Further, a tightening nut 46b is screwed and fixed to the first male threaded portion 4642, and the height L3 of the female threaded portion formed on the inner surface of the tightening nut 46b in the axial direction of the tubular portion 464 is the length of the outer peripheral surface portion 4644. It is larger than L1.

Therefore, the tightening nut 46b is screwed into the second male threaded portion 4643 and rotated to move upward, and after passing through the outer peripheral surface portion 4644, it is further rotated so that the lower part of the tightening nut 46b is the second male threaded portion. The upper part of the tightening nut 46b can be screwed to the first male thread portion 4642 in a state of being screwed to the 4643. That is, it is possible to prevent the tightening nut 46b from being screwed into neither the first male threaded portion 4642 nor the second male threaded portion 4643 between the first male threaded portion 4642 and the second male threaded portion 4643.

Therefore, when the tightening nut 46b is to be screwed into the first male threaded portion 4642, the tightening nut 46b idles at the position of the outer peripheral surface portion 4644 between the first male threaded portion 4642 and the second male threaded portion 4643, and the first It is possible to prevent it from becoming difficult to screw into the male screw portion 4642. As a result, the tightening nut 46b can be smoothly assembled to the first male threaded portion 4642.

The toilet bowl cleaning tank 4 is made of a resin material molded by blow molding. Therefore, at the bottom of the toilet bowl cleaning tank 4, it is not possible to form a cylindrical portion that supports the connection socket 26 in which the drain port 26f is formed, and an opening 412 is formed by a through hole. The valve seat seat 46 can be fixed to such a through hole to fix the connection socket 26.

Although the preferred embodiment of the toilet bowl device of the present invention has been described above, the present invention is not limited to the above-described embodiment and can be appropriately modified. For example, the valve seat 46 as a connecting pipe is fixed to the bottom of the toilet bowl cleaning tank 4 and used to support the connecting socket 26, but is not limited to this configuration. That is, the connecting pipe may be used for a portion other than the bottom of the wash water tank, or may be used for a portion other than the wash water tank.
Further, what is supported by the connection pipe does not have to be the connection socket 26. Further, the male threaded portion 4641 has two male threaded portions, a first male threaded portion 4642 and a second male threaded portion 4643, but is not limited to this configuration. Further, the first male threaded portion 4642 and the second male threaded portion 4643 are configured so that the first male threaded portion 4642 can be screwed, but the configuration is not limited to this.

Further, in the present embodiment, the toilet bowl device 1 is a floor-standing type toilet bowl device in which the toilet bowl 2 is installed on the floor surface f1, but the toilet bowl device 1 is not limited thereto. For example, it may be a so-called wall-mounted toilet device. In this case, the connection socket does not have a lower tubular portion, and the upper end of the cleaning pipe that extends upward from the wall side and bends upward and extends upward becomes the upper supported portion of the connection socket. It is inserted from the lower side and fixed to the upper supported portion by a nut.

1 Toilet bowl device 4 Toilet bowl washing tank (washing water tank)
21 Toilet bowl body 26 Connection socket (drainage port forming member)
26b O-ring 46 Valve seat (toilet connection pipe)
46b Tightening nut (first nut)
412 Bottom opening (opening)
464 Cylindrical part 4461 Male threaded part 4642 1st male threaded part 4634 2nd male threaded part 4644 Outer peripheral surface part L1 Length of outer peripheral surface part L2 O-ring wire diameter L3 Height of female threaded part formed on the inner surface of the first nut

Claims (7)

Cylindrical part and
A male screw portion formed on the outer peripheral surface of the tubular portion is provided.
The male threaded portion has a first male threaded portion and a second male threaded portion that are divided into two adjacent portions, and an O-ring is arranged between the first male threaded portion and the second male threaded portion.
The tubular portion holds the drainage port forming member in which the drainage port is formed inside the tubular portion via the O-ring.
The portion of the outer peripheral surface of the tubular portion facing the O-ring is a toilet connecting pipe having an outer peripheral surface portion on which the male screw portion is not formed. The toilet connection pipe according to claim 1, wherein the length between the first male threaded portion and the second male threaded portion in the axial direction of the tubular portion is longer than the wire diameter of the O-ring. A first nut is screwed and fixed to the first male thread portion.
The second aspect of claim 2, wherein the height of the female threaded portion formed on the inner surface of the first nut in the axial direction of the tubular portion is larger than the length between the first male threaded portion and the second male threaded portion. Connection pipe for toilet. Any of claims 1 to 3 that support the drainage port forming member provided at the bottom of the wash water tank of the toilet device including the toilet body and the wash water tank arranged above the toilet body. Toilet connection pipe described in Crab. Toilet bowl body and
The wash water tank located above the toilet bowl body,
The toilet connection pipe provided in the washing water tank and
The male threaded portion formed on the outer peripheral surface of the toilet connecting pipe,
An O-ring provided on the inner peripheral surface of the toilet connection pipe,
A drainage port forming member is provided, wherein a drainage port is formed and is supported by the toilet connection pipe via the O-ring.
The male threaded portion has a first male threaded portion and a second male threaded portion adjacent to each other, and the O-ring is arranged between the first male threaded portion and the second male threaded portion.
A tubular portion for holding the drainage port forming member in which the drainage port is formed is provided via the O-ring.
The portion of the outer peripheral surface of the toilet connecting pipe facing the O-ring is a toilet bowl device having an outer peripheral surface portion on which the male screw portion is not formed. The toilet bowl device according to claim 5, wherein the washing water tank is made of a resin material molded by blow molding. A toilet connecting pipe provided in a toilet device including a toilet body and a washing water tank arranged above the toilet body.
Cylindrical part and
A male screw portion formed on the outer peripheral surface of the tubular portion is provided.
In the radial direction of the tubular portion, the portion of the outer peripheral surface of the tubular portion facing the O-ring arranged on the inner peripheral surface of the tubular portion has an outer peripheral surface portion on which the male screw portion is not formed. ,
The tubular portion holds the drainage port forming member in which the drainage port is formed inside the tubular portion via the O-ring.
The male threaded portion is a toilet connecting pipe having a first male threaded portion and a second male threaded portion divided into at least two by the outer peripheral surface portion in the axial direction of the tubular portion.

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