JP5979581B2 - Cleaning mouth fixing structure - Google Patents

Description

The present invention relates to a flush toilet, an invention relates particularly flush toilet having a cleaning port.

2. Description of the Related Art Conventionally, flush toilets are provided that have a cleaning port that communicates with a drainage channel in order to remove the foreign matter without removing the toilet when the drainage channel is clogged. As an example, a flush toilet disclosed in Patent Document 1 can be cited. The flush toilet disclosed in Patent Document 1 has a short cylindrical cleaning port that protrudes rearward in a state communicating with the drainage channel, and this cylindrical cleaning port is integrated with the toilet. It is made of pottery. By providing the cleaning port in this manner, a space for arranging a container for receiving sewage in the drainage channel flowing out from the cleaning port at the time of inspection or the like can be secured below the cleaning port. In addition, the fixing flange which closely_contact | adheres a cleaning port lid | cover is integrally formed in the front-end | tip of a cleaning port, and a cleaning port cover is fixed to the fixing flange with a some volt | bolt and nut.

Usually, a flush toilet with the above structure is manufactured by bonding a cylindrical slurry and a thin annular slurry formed separately from the toilet body to a slurry formed in the shape of the toilet body. Is done.

JP 2002-302987 A

However, the flush toilet with the cylindrical cleaning port formed integrally in this way is a slurries formed into the shape of the toilet body and the respective shapes and sizes of the slurries adhered to the toilet body in the manufacturing process. In addition, due to the difference in the degree of drying caused by the difference in the amount of moisture contained, there was a problem that cracks were easily formed on the bonded surfaces during firing and the yield was poor.

In order to solve this problem, a method of separately attaching a cylindrical cleaning port to the flush toilet after firing is conceivable. As an example, there is a method in which a cylindrical member is inserted into a communication hole communicating with the drainage channel of the toilet body after firing, and this is fixed to the toilet body. However, in this method, due to the surface roughness of the pottery caused by the variation in the shrinkage rate during firing of the toilet bowl body made of earthenware, when fixing the cylindrical member to the toilet bowl body, drainage channels and There is a risk of creating a gap communicating with the outside, which makes it easier for sewage to leak out.

The present invention has been made to solve the above problems, the cleaning openings for fixing the cylindrical cleaning port projecting from the flush toilet sidewall in a state communicating with the drainage channel in the porcelain flush toilet fixed It is an object of the present invention to provide a cleaning port fixing structure having a high watertightness.

A flush toilet equipped with a cleaning port fixing structure according to the present invention includes a bowl portion for receiving filth, an ascending pipeline rising from below the bowl portion, and a descending pipeline descending from the end of the ascending pipeline. A drainage channel, and a communication hole that communicates the drainage channel with the outside is provided on the upper side of the descending pipeline, and the cylinder projects from the sidewall of the drainage channel in a state that the communication hole communicates with the drainage channel. In the flush toilet in which the cleaning port is fixed, the first pinching member provided on the outer periphery of the cleaning port located in the drainage channel with the cleaning port being inserted into the communication hole, and the side wall A second thread having a thread that can be screwed into a thread provided on the outer peripheral surface of the cleaning port that protrudes to the outside, and is screwed to the cleaning port so as to be movable from one end side to the other end side of the protruding cleaning port. The sandwiching member is sandwiched between the side wall and the first sandwiching member and the side wall, and the outer periphery is inclined. And the side wall and the cleaning port so that the sewage in the drainage channel is not leaked to the outside. an elastic member having contact portions which can contact the watertight, the scissors write or condition, cleaning port, characterized in that it is clamped fixed in the communicating hole.

In the thus constructed present invention, by adjusting the amount of movement of the second clamping wear member screwed movably from one end to the other end of the cleaning port protruding to the outside from the flush toilet side The force for sandwiching the elastic member between the first pinching member and the second pinching member can be adjusted. This enables adjustment of the pressure acting on the contact portion adherable watertight side wall of the flush toilet having its resilient member. In particular, since the second pinching member moves on the basis of screwing, it is possible to make continuous adjustments instead of stepwise adjustments. Even if it is the surface of this, suitable pressure can be made to act on an elastic member so that the clearance gap which leaks sewage outside may not arise between the surface and an elastic member. Further, since the axis of the cleaning port is guided by the inclined outer peripheral surface of the packing so as to coincide with the central axis of the communication hole, the cleaning port is fixed in a state of being inclined with respect to the surface of the side wall. Can be prevented. Furthermore, since the elastic member has a close contact portion that can be water-tightly attached to the cleaning port, it is possible to prevent sewage from leaking between the cleaning port and the elastic member. Therefore, even when fixing the cylindrical cleaning port to flush toilet after firing, it is possible to realize a high water tightness.

Preferably, in the present invention, the elastic member includes an annular base portion, and a rib that is provided on each of the upper surface and the inner peripheral surface of the base portion in a circumferential shape and forms a close contact portion at a tip portion thereof. The cross section is configured such that the width becomes smaller as it is closer to the side wall or the cleaning port .

In the present invention configured as this, the rib cross-section with a contact portion, which is formed so that as the smaller closer to the flush toilet sidewall or cleaning opening, the more contact portions close to the side wall or cleaning opening washing contact area is small and the toilet sidewall or cleaning opening, because its easy correspondingly subjected to large pressure, the adhesion portion is easily deformed. Therefore, even for ceramic surfaces and cleaning openings that tend to have irregularities on the surface, due to the ease of deformation of this close contact portion, the close contact portion is more likely to be in close contact with the surface of the pottery or cleaning opening, so it is more reliable. Water tightness can be realized.

According to the fixing structure of the cleaning opening of the present invention, even when fixing the cylindrical cleaning port projecting from the flush toilet sidewall in a state communicating with the drainage channel in the porcelain flush toilet, particularly high watertightness Can be realized.

The longitudinal section of the flush toilet before the cleaning mouth is fixed. The rear view of the flush toilet which has the fixing structure of the cleaning mouth which concerns on 1st Embodiment of this invention. Sectional drawing of the fixing structure part of the cleaning mouth which concerns on 1st Embodiment of this invention. The exploded view of the fixing structure part of the cleaning mouth which concerns on 1st Embodiment of this invention. The top view of the packing with a rib in 1st Embodiment of this invention. The enlarged view of the rib cross section in 1st Embodiment of this invention. The exploded view of the closure structure part of the cleaning mouth in a 1st embodiment of the present invention. Sectional drawing of the fixing structure part of the cleaning mouth which concerns on 2nd Embodiment of this invention. The exploded view of the fixing structure part of the cleaning mouth which concerns on 2nd Embodiment of this invention.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 is a longitudinal sectional view of a flush toilet before the cleaning port is fixed. As shown in FIG. 1, the flush toilet 2 has a bowl portion 8 for receiving filth and a drainage pipe 4 (drainage) connected below the bowl part 8, and the drainage pipe 4 is a bowl It consists of a rising pipe 10 rising from below the part 8 and a lowering pipe 12 descending from the end of the rising pipe 10. A communication hole 6 that communicates the drainage channel with the outside is provided on the upper side of the descending pipeline 12.

FIG. 2 is a rear view of the flush toilet having the cleaning port fixing structure according to the first embodiment of the present invention, and FIG. 3 is a sectional view of the cleaning port fixing structure portion. FIG. 4 is an exploded view of the fixing structure of the cleaning port.

  Since the fixing structure of the cleaning port of this embodiment is a combination of the members shown in FIG. 4, each of these members will be described.

Reference numeral 14 denotes a cylindrical member (corresponding to a cleaning port in the claims) having a flange 14a (first pinching member) at one end, and from the one end side where the flange 14a is not provided on the outer periphery thereof. A male screw 14b is formed over a predetermined distance. The cylindrical member 14 is made of stainless steel. 16 is a packing having a trapezoidal cross-sectional shape, and has an inclined outer peripheral surface as shown in FIG. As shown in FIG. 5, ribs 18b and 18c are provided on the upper surface and inner peripheral surface of the annular base portion 18a so as to be circumferential, and are made of an elastic material such as rubber having high water tightness and elasticity. It is an attached packing (elastic member). Reference numeral 20 denotes a washer that accommodates the ribbed packing 18, and reference numerals 22 and 24 denote hexagonal nuts that have an internal thread on the inner peripheral surface thereof that engages with an external thread 14 b formed on the cylindrical member 14.

  Next, a procedure for attaching each member in FIG. 4 will be described. First, the packing 16 is fitted from the one end side where the male screw 14b of the cylindrical member 14 is formed in a direction in which the outer diameter is increased toward the flange 14a. And this cylindrical member 14 is inserted in the communicating hole 6 from the one end side in which the external thread 14b was formed through the descending pipe line 12 from the bottom part of the flush toilet 2. At this time, the inclined outer peripheral surface of the packing abuts on the peripheral edge of the communication hole 6 on the drain pipe line 4 side as shown in FIG. 3, and a part of the cylindrical member 14 is outside the side wall 2 a of the flush toilet 2. It will be in a state of protruding from the surface.

  Subsequently, the packing 18 with ribs is accommodated in the recess 20a of the washer 20, and the washer 20 is fitted to the cylindrical member 14 protruding from the side wall 2a so that the rib 18b of the packing 18 with ribs contacts the outer surface of the side wall 2a. Include. Then, the female screw 22a of the hex nut 22 (second pinching member) is screwed into the male screw of the cylindrical member 14 from the tip of the cylindrical member 14, and the hex nut 22 is tightened. As a result, the washer 20 containing the packing 16 and the ribbed packing 18 is clamped by the flange 14a of the cylindrical member 14 and the hexagonal nut 22 with the side wall 2a at the periphery of the communication hole 6 of the flush toilet 2 interposed therebetween. 14 will be in the state fixed to the flush toilet 2. At the time of this tightening, the axial center of the cylindrical member 14 is guided by the inclined outer peripheral surface of the packing 16 so as to coincide with the central axis of the communication hole 6, so that the cylindrical member 14 is in contact with the surface of the sidewall 2 a It is hardly fixed in an inclined state, and the magnitude of the pressure acting between the rib 18b and the side wall 2a can be adjusted by adjusting the tightening force at this time.

  Finally, another hex nut 24 is screwed from the tip of the cylindrical member 14 and tightened to the previously attached hex nut 22. As a result, the hexagon nut 22 can be prevented from loosening due to the influence of vibration or the like.

Thus, in the flush toilet in which the cylindrical member 14 is fixed, the packing 16 is damaged in the periphery of the communication hole 6 (for example, pottery) by the large pressure applied between the periphery of the communication hole 6 and the flange 14a (for example, It functions to buffer the force so that it does not crack.

Here, the behavior of the ribs 18b and 18c of the packing 18 with ribs during the tightening will be described. FIG. 6 is an enlarged view of the cross section of the rib 18b. As shown in FIG. 6, the close contact portion 18d that can be in close contact with the surface of the side wall 2a of the rib 18b is formed in an arc shape in cross section. The closer to, the smaller the cross-sectional width of the rib 18b. Therefore, the closer to the side wall 2a, the greater the pressure acting on the close contact portion 18d, and the close contact portion 18d is easily deformed. Therefore, even if the object to which the rib 18b is in close contact is a pottery that is likely to have irregularities on the surface due to shrinkage errors during firing, the above-described tightening force by the flange 14a and the hexagon nut 22 is adjusted, and the rib 18b By applying an optimum pressure to the side wall 2a, the rib 18b is deformed so as to be adapted to the unevenness of the surface of the pottery over the entire circumference, and the rib 18b is in close contact with the side wall 2a. Similarly, the other rib 18c also has high adhesion to the cylindrical member 14 because the tip cross section is formed in an arc shape. As described above, since the ribs 18b and 18c have high adhesion to the toilet bowl surface and the outer surface of the cylindrical member 14, respectively, the ribs 18b and 18c are generated from the drain pipe 4 between the packing 16 and the periphery of the communication hole 6. Thus, it is possible to reliably prevent the sewage that has passed through the gap and has flowed to the outer surface side of the toilet bowl from leaking to the outside, thereby realizing high water tightness.

In addition, as shown in FIG. 7, the recessed part 30a of the cover body 30 in which the internal thread 30b screwed together with the external thread 14a of the cylindrical member 14 was formed in the front-end | tip in which the external thread of this cylindrical member 14 is formed, as shown in FIG. The opening 32 at the tip of the cylindrical member 14 can be closed by fitting the packing 32 and the slip washer 34 and screwing the lid 30 onto the tip of the cylindrical member 14. The lid 30 can be removed only by inserting a predetermined tool into a recess (not shown) provided on the upper surface of the lid 30 so that the lid 30 is not unnecessarily removed from the cylindrical member 14 due to mischief or the like. . Further, since the lid 30 can be attached to and detached from the cylindrical member 14 only by rotating the lid 30 using a predetermined tool, workability during inspection and the like is very good. In addition, it is preferable that this cover body 30 consists of a transparent member so that the mode inside drainage pipe 4 can be confirmed from the outside. If the lid 30 is transparent, when the foreign matter is clogged inside the drain pipe 4, grasp where the foreign substance is clogged in the drain pipe 4 before removing the lid 30. Can do. That is, when the foreign matter is clogged, when the inside of the drainage pipe 4 is confirmed from the outside, if the inside of the drainage pipe 4 is filled with sewage, the downfall pipe 12 or the lower end of the downfall pipe 12 It can be seen that foreign matter is clogged in the connected pipeline, and if not, foreign matter is clogged in the ascending pipeline 10.

  Next, a second embodiment according to the cleaning port fixing structure of the present invention will be described. FIG. 8 is a cross-sectional view of the cleaning port fixing structure according to the second embodiment, and FIG. 9 is an exploded view of the cleaning port fixing structure according to the second embodiment.

  Similarly to the first embodiment, the cleaning port fixing structure according to the second embodiment is a combination of the members shown in FIG. 9, so each of these members will be described.

  Reference numeral 36 denotes a cylindrical member having a tapered flange 36a at one end, and a male screw 36b is formed on the outer periphery of the cylindrical member 36 excluding the tapered flange 36a. The tapered flange 36a is formed so that the maximum diameter of the outer periphery thereof is smaller than the diameter of the communication hole 6 of the flush toilet 2. Reference numeral 38 denotes an umbrella-shaped packing whose inner peripheral surface is in close contact with the outer periphery of the tapered flange 36a. Similarly to the packing 18, 40 is a ribbed packing having ribs 40b and 40c on the upper surface and inner peripheral surface of the annular base portion 40a. Reference numeral 42 denotes a slip washer, and reference numeral 44 denotes a flanged nut in which an internal thread 44 a that engages with the external thread 36 b of the cylindrical member 36 is formed on the inner peripheral surface.

  Next, the attachment procedure of each member of FIG. 9 will be described. First, the cylindrical member 36 is inserted into the communication hole 6 from the outside of the flush toilet 2. At this time, the cylindrical member 36 is inserted from one end side where the tapered flange 36 is provided. Then, after the packing 38 made of an elastic material such as rubber having high water tightness and elasticity is deformed and inserted into the communication hole 6, the packing 38 is moved from one end side of the cylindrical member 36 not provided with the tapered flange 36. Fit. Thereafter, the cylindrical member 36 is pulled outward so that the cylindrical member 36 on which the male screw 36b is formed protrudes from the toilet outer surface. At this time, since the packing formed so that the diameter of a part of the outer peripheral surface is larger than the diameter of the communication hole 6 comes into contact with the peripheral edge of the communication hole 6, the cylindrical member 36 comes out from the communication hole 6 to the outside. There is nothing.

Subsequently, the slip washer 42 and the ribbed packing 40 are sequentially accommodated in the recess 44b of the flanged nut 44, and the female screw 44a of the flanged nut 44 is inserted into the cylindrical member 36 from the tip of the cylindrical member 36 protruding from the outer surface of the toilet bowl. The nut 44 with the flange is tightened with the male screw 36b. Thus, the packing 38, the ribbed packing 40, and the slip washer 42 are clamped by the flange 36a of the cylindrical member 36 and the flanged nut 44 with the side wall 2a at the periphery of the communication hole 6 of the flush toilet 2 interposed therebetween. 36 is fixed to the flush toilet 2.

In this embodiment, when the cylindrical member 36 is fixed to the flush toilet 2, it is not necessary to turn the cylindrical member or the like from the bottom of the flush toilet 2 as in the first embodiment, and only work from the outside of the toilet. Workability is very good. This is especially true in ceramic urinals, which are usually heavy enough to be difficult for a person to lift.

2 ... flush toilet 2a ... side wall 3, 5 ... cleaning port fixing structure 4 ... drainage pipe 6 ... communication hole 8 ... bowl part 10 ... ascending duct 12 ... descending duct 14, 36 ... cylindrical member 14a ... flange 14b 36b ... male screw 15, 17 ... opening 16, 32, 38 ... packing 18, 40 ... ribbed packing 18a, 40a ... base 18b, 18c, 40b, 40c ... rib 18d ... close contact 20 ... washer 20a ... hollow
22, 24 ... Hex nuts 22a, 24a, 44a ... Female threads 34, 42 ... Slip washer 30 ... Lid 30a ... Recess 36a ... Tapered flange 44 ... Nut 44b with flange ... Recessed part

Claims (2)

A bowl portion for receiving filth, and a drainage channel composed of a rising pipeline rising from below the bowl portion and a descending pipeline descending from the end of the ascending pipeline; Is a flush toilet in which a communication hole is provided for communicating the drainage channel with the outside, and a cylindrical cleaning port protruding from the side wall of the drainage channel is fixed to the communication hole in a state of communicating with the drainage channel. ,
In the state where the cleaning port is inserted in the communication hole,
A first pinching member provided on the outer periphery of the cleaning port located in the drainage channel;
The cleaning port has a thread that can be screwed into a thread provided on the outer peripheral surface of the cleaning port protruding outward from the side wall, and is movable to one end side from the other end side of the protruding cleaning port. With the second pinching member screwed,
The side wall;
A packing that is sandwiched between the first sandwiching member and the side wall, the outer periphery is inclined, and the inclined outer peripheral surface is in contact with the inner peripheral edge of the communication hole;
An elastic member that is sandwiched between the second sandwiching member and the side wall, and has a close contact portion that can be tightly adhered to the side wall and the cleaning port so that sewage in the drainage channel does not leak to the outside;
In state scissors write or a, a flush toilet, characterized in that the cleaning opening is clamped and fixed to the communicating hole. The elastic member has an annular base, and a rib that is erected in a circumferential shape on each of an upper surface and an inner peripheral surface of the base, and that forms the contact portion at a tip portion thereof,
The flush toilet according to claim 1, wherein a cross section of the rib has a smaller width as it is closer to the side wall or the cleaning port.