JP5414241B2 - Toilet bowl cleaning nozzle - Google Patents

Description

  The present invention relates to a toilet bowl cleaning nozzle.

  Patent Document 1 discloses a conventional toilet cleaning nozzle. This toilet bowl washing nozzle is attached to a through-hole provided in a wall surface forming a water seal portion of the flush toilet bowl, and ejects washing water. The toilet bowl cleaning nozzle has a nozzle body. The nozzle body is provided with a tip portion having a flange portion that is open at the jet port and extends around the jet port. The collar portion is formed in a flat ring shape. The nozzle body includes a connecting pipe portion that extends behind the tip portion and forms a water supply channel that communicates with the jet port. Between the rear surface of the flange portion and the front surface of the wall surface around the through hole, a packing inserted through the connecting pipe portion is sandwiched. This prevents the sealed water stored in the water seal portion from leaking from between the through hole and the nozzle body.

JP 2002-106041 A

  However, in the conventional toilet bowl cleaning nozzle, the packing is exposed from between the buttock and the wall surface. In particular, in order to prevent water leakage, if the packing is strongly sandwiched between the flange portion and the wall surface around the through hole, the packing may be crushed and protrude beyond the outer peripheral edge of the flange portion. Since the packing is made of silicon rubber or the like, mold may be formed. When the packing is exposed or protrudes, mold growing on the packing is visually recognized by a user of the toilet bowl, and the appearance is deteriorated. In addition, since the packing is sandwiched between the collar portion and the wall surface, a gap is generated between the outer peripheral edge of the collar portion and the wall surface. For this reason, dirt such as dirt is likely to accumulate in the gap, and the accumulated dirt is difficult to remove by cleaning. For this reason, it looks worse. Moreover, if the packing is weakly held by the back surface of the collar portion and the wall surface around the through-hole so as not to protrude beyond the outer peripheral edge of the collar portion in order to make the packing difficult to be seen, there is a risk of water leakage.

  This invention is made | formed in view of the said conventional situation, Comprising: It is the subject which should be solved to provide the toilet bowl washing nozzle which is good-looking and can stop water reliably.

The toilet bowl cleaning nozzle of the present invention is attached to a through-hole provided in a wall surface forming a water seal portion of a flush toilet bowl,
A nozzle body comprising a jet outlet and a tip having a flange extending around the jet outlet, and a connecting pipe part extending rearward of the tip and forming a water supply channel communicating with the jet;
It has an insertion hole for inserting the connecting pipe part in the center, and comprises a packing sandwiched between the flange part and the wall surface around the through hole,
The flange portion surrounds the front and sides of the packing, and is formed such that the rear end surface of the outer peripheral edge abuts against the front surface of the wall surface .
The front surface of the flange is formed in a curved surface that bulges forward around the spout, which is the central portion, and an intermediate portion that is continuous with the central portion is formed in a curved surface that bulges backward, and is continuous with the intermediate portion. The peripheral portion is formed in a curved surface that swells obliquely forward, and the periphery of the ejection hole protrudes forward, and is inclined so as to recede backward toward the peripheral edge .

  In this toilet bowl cleaning nozzle, the packing is surrounded by the buttock and therefore is not exposed to the outside. For this reason, even if mold grows on the packing, it is not visually recognized by the user or the like of the flush toilet, and can maintain a good-looking state. Moreover, since the rear end surface of the outer peripheral edge of the collar is brought into contact with the wall surface, no gap is generated, and dirt such as dirt is difficult to accumulate. For this reason, cleaning can be performed easily. In addition, since the rear end surface of the outer peripheral edge of the collar comes into contact with the wall surface, the packing can be compressed and clamped with an appropriate force. For this reason, water sealing can be reliably performed by packing.

  Therefore, the toilet bowl washing nozzle of the present invention has a good appearance and can be surely stopped.

Front surface of the flange portion protrudes circumference in front of the spout, Ru inclined Tei to retract rearwardly toward the periphery. In this case, the water in the water seal portion during toilet flushing smoothly flows in the vicinity of the tip of the toilet flush nozzle. For this reason, it is possible to prevent filth and the like from staying in the vicinity of the tip. Moreover, since the outer peripheral edge part of the collar part is formed thinly, filth etc. are hard to collect. For this reason, it is possible to make the periphery of the front end of the toilet cleaning nozzle difficult to get dirty. Since the periphery of the spout protrudes forward, the distance from the water supply channel of the connecting pipe portion to the spout increases. Thereby, the straightness of the washing water ejected from the ejection port is improved. For this reason, the filth etc. in a water seal part can be strongly carried out to a drainage channel by the washing water spouted from a spout.

  When the connecting pipe portion is attached to the through hole, the outer peripheral surface has a gap between the inner peripheral surface of the through hole, and the inner peripheral edge portion of the packing can be filled in the gap. In this case, the packing can be sandwiched not only between the rear surface of the flange portion and the front surface of the wall surface around the through hole, but also between the outer peripheral surface of the connecting pipe portion and the inner peripheral surface of the through hole. For this reason, it can stop water more reliably.

The packing has a flat front surface in contact with the rear surface of the flange, and the rear surface in contact with the front surface of the wall surface may be inclined so as to become thinner from the inner peripheral side toward the outer peripheral side. In this case, the outer peripheral portion of the packing is securely sandwiched between the rear surface of the flange portion and the front surface of the wall surface around the through hole. Further, as the gap between the rear surface of the flange portion and the front surface of the wall surface around the through hole is reduced and the packing is compressed, the packing is deformed so as to protrude toward the inner circumferential direction. Thereby, packing is filled between the outer peripheral surface of the connecting pipe portion and the inner peripheral surface of the through hole, and water can be stopped even in this portion, so that water can be stopped more reliably.

  The nozzle body may be formed by bonding a first member that forms the distal end portion and a second member that forms the connecting pipe portion. In this case, since the first member and the second member are separately formed, the collar portion can be formed with high accuracy. That is, since the rear end surface of the outer peripheral edge portion of the flange portion can be formed in the same plane, the rear end surface of the outer peripheral edge portion of the flange portion can be brought into contact with the wall surface without a gap. For this reason, a gap does not occur and dirt such as dirt is difficult to accumulate. For this reason, cleaning can be performed easily.

  Moreover, since the front-end | tip part is exposed in a water seal part and may be visually recognized by the toilet user etc., it must attach importance to external appearances, such as a hue, For that reason, manufacturing cost becomes high. On the other hand, since the connecting pipe portion is not visually recognized by the toilet user or the like, the manufacturing cost can be reduced regardless of the color. For this reason, the manufacturing cost can be reduced by forming the nozzle body from the first member and the second member as compared to the case where the nozzle body is formed from one member. Moreover, it can be manufactured easily.

  Hereinafter, Embodiment 1 in which the toilet cleaning nozzle of the present invention is attached to a flush toilet will be described with reference to the drawings.

  The flush toilet of Example 1 has the toilet bowl main body 1 as shown in FIG. The toilet body 1 has a bowl portion 2 that opens upward. A rim 3 projecting inward is formed at the upper end of the pot portion 2. Below the rim 3, a shelf portion 4 having a gentle downward slope toward the inside is formed. Washing water is supplied to the shelf 4 from a first water supply pipe (not shown). The washing water supplied to the shelf part 4 flows on the upper surface of the shelf part 4 in one direction, and flows downward from the upper part of the pot part 2 while gradually turning along the pot surface.

  The toilet body 1 has a rising drainage channel 6 that communicates with the lower end of the bowl part 2 and rises along the rear part of the bowl part 2. The pot portion 2 and the ascending drainage channel 6 form a water seal portion 5 in which cleaning water stays. Further, the toilet body 1 is formed with a descending drainage channel 7 that communicates with the upper end of the ascending drainage channel 6 and descends vertically downward. A lower end opening 8 of the descending drainage channel 7 communicates with an inflow port of a drain pipe (not shown) that opens to the floor surface via a drain socket 9.

  A wall surface 10 that forms the water seal portion 5 is provided with a through-hole 11 at the downstream side of the inlet 6 </ b> A of the ascending drainage channel 6 and at the bottom of the pot portion 2. A toilet cleaning nozzle 20 that ejects cleaning water is attached to the through-hole 11. The toilet cleaning nozzle 20 is connected to the second water supply pipe 50 and supplied with cleaning water.

  As shown in FIG. 2, the toilet bowl cleaning nozzle 20 includes a nozzle body 21, a packing 22, a fixing packing 23 for positioning the nozzle body, a flat washer 24, and a tightening nut 25.

  The nozzle body 21 includes a tip 30 having a jet 31 that opens at the tip and a disc-shaped flange 32 that extends around the jet 31 and has the jet 31 as a center. The nozzle body 21 has a connecting pipe portion 40 that extends behind the tip portion 30 and forms a water supply channel 41 that communicates with the jet port 31. The rear part of the connecting pipe part 40 is bent in the 90 ° lateral direction. The inlet 42 of the nozzle body 21 opens in the lateral direction. For this reason, the second water supply pipe 50 can be connected to the toilet flushing nozzle 20 without being largely bent. Therefore, the second water supply pipe 50 can be easily routed and the connection work can be easily performed.

The nozzle body 21 is formed of two members: a first member 30 </ b> A that forms the tip portion 30 and a second member 40 </ b> A that forms the connecting pipe portion 40. The first member 30 </ b> A has an insertion tube portion 30 </ b> B formed to extend rearward of the distal end portion 30. The insertion tube portion 30B is internally fitted and welded to a connection portion 40B formed on the distal end side of the second member 40A. In this way, the first member 30A and the second member 40A are integrated. Since the first member 30A and the second member 40A can be molded separately, the rear end surface 34A of the outer peripheral edge portion of the flange portion 32 is formed on the same plane with high accuracy. Moreover, the connecting pipe part 40 can be bent.

  The distal end portion 30 of the first member 30A is exposed in the water seal portion 5 and may be visually recognized by a toilet user or the like. For this reason, a manufacturing cost will become high. On the other hand, since the second member 40A is not visually recognized by a toilet user or the like, the second member 40A is formed regardless of the hue or the like. For this reason, manufacturing cost can be reduced.

The front surface 33 of the collar portion 32 is inclined so that the periphery of the spout 31 protrudes forward and moves backward as it goes toward the periphery. More specifically, the front 33 of the flange 32, around the spout 31 the central portion is formed into a curved surface bulging forward, middle portion continuous to the central portion is formed into a curved surface that is recessed rearwardly, the intermediate portion peripheral portion continuous is formed into a curved surface bulging obliquely forward.

  The rear surface 34 of the collar portion 32 is formed by a rear end surface 34A of an outer peripheral edge projecting rearward and an inner rear surface 34B recessed from the rear end surface 34A. The inner rear surface 34B is formed flat.

  The packing 22 has an insertion hole 22H through which the connecting pipe portion 40 is inserted. Further, the packing 22 has a flat front surface 22A that contacts the inner rear surface 34B of the flange portion 32, and the rear surface 22B is inclined so as to become thinner from the inner peripheral side toward the outer peripheral side.

  The fixing packing 23 has an insertion hole 23H through which the connection pipe portion 40 is inserted. The fixing packing 23 is formed on an inclined surface 23 </ b> A in which a front outer peripheral portion extends rearward. The inclined surface 23A is formed symmetrically with respect to the central axis of the insertion hole 23H. Further, the fixing packing 23 has a flat rear surface 23B.

  The toilet cleaning nozzle 20 configured as described above is attached to the through hole 11 as shown in FIG. The toilet cleaning nozzle 20 is attached to the through hole 11 as follows.

  First, the connecting pipe portion 40 of the nozzle body 21 is inserted into the insertion hole 22H of the packing 22 from the inlet 42 side, and the front surface 22A of the packing 22 is brought into contact with the inner rear surface 34B of the flange portion 32 of the nozzle body 21. Next, the connecting pipe portion 40 of the nozzle body 21 is inserted into the through hole 11 from the bowl portion 2 side. The connecting pipe portion 40 passes through the through hole 11 and appears on the back side of the wall surface 10. The fixing packing 23, the flat washer 24, and the tightening nut 25 are fitted into the connecting pipe portion 40 that appears on the back side of the wall surface 10 in this order. As the tightening nut 25 is screwed, the inclined surface 23 </ b> A of the fixing packing 23 enters the through hole 11. Since the inclined surface 32A is formed symmetrically with respect to the central axis of the insertion hole 23H, the insertion hole 23H is positioned coaxially with the through hole 11. For this reason, the connecting pipe part 40 inserted into the insertion hole 23H can also be positioned coaxially with the through hole 11. In this state, a gap is formed between the outer peripheral surface 43 of the connecting pipe portion 40 and the inner peripheral surface of the through hole 11.

  Further, as the tightening nut 25 is screwed in, the outer peripheral portion of the packing 22 is sandwiched between the inner rear surface 34B of the flange portion 32 and the front surface of the wall surface 10 around the through hole 11, and water can be stopped at this portion. it can. Further, when the tightening nut 25 is tightened, the packing 22 is compressed and deformed so as to protrude toward the inner circumferential direction of the packing 22. As a result, the packing 22 is also filled between the outer peripheral surface 43 of the connecting pipe portion 40 and the inner peripheral surface of the through-hole 11, and water can be stopped even in this portion, so that water can be stopped more reliably. .

  As the tightening nut 25 is screwed in, the rear end surface 34A of the flange portion 32 comes into contact with the front surface of the wall surface 10. Thereby, the tightening of the tightening nut 25 is completed. For this reason, since the packing 22 can be compressed and clamped with an appropriate force, the packing 22 can reliably stop water. Further, in this state, the packing 22 is surrounded by the collar portion 32 and thus is not exposed to the outside. For this reason, even if mold grows on the packing, it is not visually recognized by the user or the like of the flush toilet, and can maintain a good-looking state. Further, since the nozzle body 21 is formed of the first member 30A and the second member 40A, and the rear end surface 34A of the outer peripheral edge portion of the flange portion 32 is accurately formed in the same plane, the outer peripheral edge of the flange portion 32 The rear end surface 34A of the portion abuts against the wall surface, and no gap is generated. For this reason, dirt such as dirt is difficult to accumulate. Therefore, cleaning can be performed easily.

  Therefore, the toilet bowl washing nozzle of Example 1 has good appearance and can reliably stop water.

  The front surface 33 of the collar portion 32 is inclined so that the periphery of the spout 31 protrudes forward and recedes backward as it goes toward the periphery. Flows smoothly in the vicinity. For this reason, it is possible to prevent filth and the like from staying in the vicinity of the tip portion 30. Moreover, since the outer peripheral edge part of the collar part 32 is formed thinly, filth etc. are hard to accumulate. Therefore, the periphery of the tip portion 30 can be made difficult to get dirty.

Since the periphery of the spout 31 protrudes forward, the distance from the water supply path 41 of the connecting pipe part 40 to the spout 31 is long. Thereby, the straightness of the washing water ejected from the ejection port 31 is improved. For this reason, washing water can be ejected vigorously from the ejection port 31 along the ascending drainage channel 6. For this reason, the filth etc. in the water seal part 5 can be discharged | emitted strongly toward the descending drainage channel 7. FIG.
<< Other Examples >>

The present invention is not limited to the first embodiment described with reference to the above description and drawings. For example, the following embodiments are also included in the technical scope of the present invention.
(1) In the first embodiment, the nozzle body is formed by integrating the two members of the first member and the second member, but may be formed by one member.
(2) In the first embodiment, the first member and the second member are welded, but they may be bonded with an adhesive or the like.
(3) In Example 1 described above, the outer peripheral edge portion of the flange portion is formed so as to protrude rearward, but the rear surface of the flange portion may be formed so as to be gradually inclined rearward.
(4) In the first embodiment, the connecting pipe portion is bent, but it may be bent straight without being bent.
(5) In the first embodiment, the packing sandwiched between the rear surface of the flange and the front surface of the wall surface around the through hole is inclined so that the thickness decreases from the inner peripheral side toward the outer peripheral side. However, a flat packing with a constant wall thickness may be used.

  The present invention is applicable to a flush toilet.

It is sectional drawing showing the western style toilet bowl of Example 1. FIG. It is an exploded view showing the toilet bowl washing nozzle of Example 1. It is sectional drawing which shows the attachment state of the toilet bowl washing nozzle of Example 1. FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 5 ... Water seal part 10 ... Wall surface 11 ... Through-hole 20 ... Toilet bowl washing nozzle 21 ... Nozzle main body 22 ... Packing 22H ... Insertion hole 30 ... Tip part 30A ... 1st member 31 ... Spout 32 ... Gutter 40 ... Connection pipe part 40A ... second member 41 ... water supply channel

Claims (4)

In the toilet cleaning nozzle attached to the through-hole provided in the wall surface forming the water seal part of the flush toilet and ejecting flush water,
A nozzle body comprising a jet outlet and a tip having a flange extending around the jet outlet, and a connecting pipe part extending rearward of the tip and forming a water supply channel communicating with the jet;
It has an insertion hole for inserting the connecting pipe part in the center, and comprises a packing sandwiched between the flange part and the wall surface around the through hole,
The flange portion surrounds the front and sides of the packing, and is formed such that the rear end surface of the outer peripheral edge abuts against the front surface of the wall surface .
The front surface of the flange is formed in a curved surface that bulges forward around the spout, which is the central portion, and an intermediate portion that is continuous with the central portion is formed in a curved surface that bulges backward, and is continuous with the intermediate portion. A toilet cleaning nozzle , wherein a peripheral edge portion is formed on a curved surface that swells obliquely forward, and the periphery of the ejection hole protrudes forward and is inclined so as to recede backward toward the peripheral edge . When the connecting pipe portion is attached to the through hole, the outer peripheral surface has a gap between the inner peripheral surface of the through hole, and the inner peripheral edge portion of the packing can be filled in the gap. 2. A toilet cleaning nozzle according to claim 1, wherein The packing is characterized in that the front surface that contacts the rear surface of the flange portion is a flat surface, and the rear surface that contacts the front surface of the wall surface is inclined so as to become thinner from the inner peripheral side toward the outer peripheral side. Item 3. A toilet cleaning nozzle according to item 1 or 2. 4. The nozzle body according to claim 1, wherein the nozzle body is formed by bonding a first member that forms the distal end portion and a second member that forms the connection pipe portion. 5. The toilet cleaning nozzle described.

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