JP4719945B2 - Water discharge device - Google Patents

Description

  The present invention relates to a water discharge device, and more particularly, to a water discharge device including a water supply pipe and a shower head unit.

  Japanese Patent Laying-Open No. 2002-167819 (Patent Document 1) describes a structure for mounting a water discharge tool. This mounting structure includes a connecting member coupled to a water supply pipe and a spout fixed to the connecting member, and tightens a set screw that is screwed into the spout to connect the tip of the connecting member. The spout is fixed by pressing it against the member.

JP 2002-167819 A

  However, if the set screw loosens during use of a water discharge device such as a spout, or if you forget to install the set screw when installing the water discharge device, the water discharge device may fall off the connection member due to tap water pressure. There is a problem that there is.

  In the connection structure described in Japanese Patent Laid-Open No. 2002-167819, a retaining pin is formed on the connecting member, and when the spout is attached to the connecting member, the guide hole formed on the spout and the retaining pin are aligned. The connecting member is received in the spout. Since the guide hole and the retaining pin are configured so that the positions of the spout are not aligned when the spout is fixed at a predetermined installation position, the retaining pin is engaged with the spout even when the set screw is removed. The spout is prevented from falling off.

  However, in the connection structure described in Japanese Patent Application Laid-Open No. 2002-167819, the spout may fall off when the position of the guide hole and the retaining pin is accidentally aligned after the set screw is removed. In particular, in a water discharge device such as a shower head installed on the user's head, higher safety is required.

  Therefore, an object of the present invention is to provide a water discharge device that can more reliably prevent a dropout.

  In order to solve the above-described problem, the present invention is a water discharge device including a water supply pipe extending in a horizontal direction and a shower head connected to extend in a vertical direction on the bottom surface of the water supply pipe, The shower head has fixing means for fixing the shower head portion to the water supply pipe at a predetermined installation position, the water supply pipe includes a water pipe engagement screw portion, and the shower head portion includes the shower head. When the portion is attached to the water supply pipe, it is once screwed into the water supply pipe engaging thread, and when the shower head is fixed at the installation position, it seems to pass over the water supply pipe engaging thread. It is characterized by having a shower head portion engaging screw portion positioned in the position.

  In the present invention configured as described above, when the shower head portion is fixed to the water supply pipe by the fixing means, the shower head portion engaging screw portion is once screwed into the water supply tube engaging screw portion of the water supply tube. Is done. When the shower head portion screw portion is further rotated with respect to the water pipe engagement screw portion, the shower head portion engagement screw portion passes over the water pipe engagement screw portion. The fixing means fixes the shower head portion engaging screw portion at a predetermined installation position in a state where the shower head portion engaging screw portion passes over the water supply pipe engaging screw portion.

  According to the present invention configured as described above, the shower head portion and the water supply pipe are connected to the shower head engaging thread portion and the water supply pipe even when the shower head portion is not fixed by the fixing means due to long-term use or the like. It is still in the state of being engaged by the engaging screw portion. To release the engagement between the shower head locking screw and the water pipe locking screw, align the central axes of the shower head locking screw and the water pipe locking screw and rotate the shower head in a predetermined direction. Therefore, it is possible to prevent these shower heads from dropping to the user or the floor by accidentally releasing these engagements during use.

In the present invention, preferably, a sealing means is provided for watertight between the water supply pipe and the fixing means in a state where the shower head portion is fixed to the water supply pipe by the fixing means.
In the present invention configured as described above, when the fixing means is loosened, the watertightness between the fixing means and the water supply pipe is lost, so that the fact that the fixing means is loose can be informed by water leakage.

  In this invention, Preferably, the said fixing means is provided in the position which remove | deviated from the center axis | shaft of the state in which the said shower head part was attached to the said water supply pipe | tube on the upper surface or side surface of the said water supply pipe | tube.

  According to the present invention configured as above, since the central axis of the fixing means and the central axis of the shower head portion attached to the water supply pipe are not coaxial, rotation of the shower head portion is prevented. Further, the fixing means is firmly fixed by receiving the weight of the shower head portion and the water pressure applied in the direction perpendicular to the water supply pipe by the entire fixing means.

In the present invention, preferably, a plurality of the fixing means are provided.
In this invention comprised in this way, since a shower head part is fixed with respect to a water supply pipe | tube with a some fixing means, it can be set as the prevention of rotation of a stronger shower head part and firm fixation.

  According to the water discharge device of the present invention, it is possible to more reliably prevent the dropout.

  Next, embodiments of the present invention will be described with reference to the accompanying drawings. First, with reference to FIG. 1 thru | or FIG. 4, the water discharging apparatus of this invention is demonstrated. FIG. 1 is an external perspective view showing the water discharging device of the present embodiment, and FIG. 2 is a cross-sectional view taken along the line AA of the shower head portion. FIG. 3 is a cross-sectional view BB of the water discharging device. FIG. 4 is a perspective view showing a state before the shower head unit is assembled.

  The water discharge device 1 of the present invention is fixed to the water discharge device main body 2 that performs water discharge and temperature adjustment to the shower head unit 10, the water supply pipe 20 attached to the water discharge device main body 2, and the water supply pipe 20. The shower head unit 10 and a screw 30 which is a fixing means for fixing the shower head unit 10 to the water supply pipe 20 are provided. Further, an O-ring 40 that is a sealing means for ensuring watertightness between the water supply pipe 20 and the screw 30 is disposed on the back surface of the screw 30.

  The shower head unit 10 includes a joint 11 that is inserted into and fixed to the water supply pipe 20 and a watering plate unit 12, and the watering plate unit 12 includes a watering plate 12 a, a packing 12 b, and a back cover 12 c. The joint 11 and the water spray plate 12 a are integrally configured by a fixing ring 13 and a fixing ring screw 14. A number of water spray holes 12d are formed in the water spray plate 12a and the packing 12b of the water spray plate portion 12, and the water spray plate 12a and the back cover 12c are fixed by the water spray plate screw 15 so as to sandwich the packing 12b. Yes. A water passage 16 for flowing hot water to be discharged into the gap between the back surface of the packing 12b and the back cover 12c thus configured is formed.

  In addition, the water supply pipe 20 includes a main body connection portion 21 connected to the water discharger main body portion 2, and a water flow pipe 22 for passing hot water is disposed therein. At the distal end of the water supply pipe 20, there is a shower head connection part 24 for connecting the water pipe connection part 23 and the joint 11 of the shower head part 10 for connecting the water pipe 22 therein.

  The shower head connecting portion 24 at the tip of the water supply pipe 20 is formed with a cylindrical joint receiving portion 25 for receiving the tip of the joint 11 of the shower head portion 10. The joint receiving portion 25 is formed with an engaging female thread 26 that is a water pipe engaging thread portion. Further, a watertight cylindrical portion 28 is formed on the distal end side of the engagement female thread 26 so as to be in close contact with the O-ring 27 and ensure watertightness.

The joint 11 of the shower head unit 10 is a substantially cylindrical part having a water passage 16 formed therein. At the distal end portion of the joint 11, a engagement male thread 11 a is formed which is a shower head section engagement thread portion that is once screwed with the engagement female thread 26 of the water pipe connection portion 23 when attached to the water supply pipe 20. The lengths of the engaging female thread 26 and the engaging male thread 11a are short, and each includes approximately two threads. Further, the joint 11 is formed with two annular protrusions 11b, and the O-ring 11c is positioned between them.
The joint 11 has a notch 11d at the tip, and the length of the notch 11d is set up to a height above the protrusion 11b for positioning the O-ring 11c. With this notch 11d, hot water flowing from the water supply pipe 20 can be passed through the water spray plate portion 12.
Further, the screw 30 is screwed into the female screw portion 11e of the joint 11 of the shower head portion 10 through the hole processing portion 29 on the upper surface portion of the water supply tube 20, whereby the water supply tube 20 and the shower head portion 10 are connected and fixed. In addition, the hole processing part 29 and the female thread part 11e are provided at a position deviating from the central axis when the shower head part 10 is connected to the water supply pipe 20, that is, the central axis of the engaging female thread part 26.

  Next, with reference to FIG. 5 thru | or FIG. 7, the attachment procedure of the shower head part 10 in the water discharging apparatus 1 of this invention is demonstrated.

First, the shower head portion 10 is arranged so that the joint receiving portion 25 of the shower head connecting portion 24 at the tip of the water supply pipe 20 attached to the water discharge device main body 1 receives the joint 11 of the shower head portion 10. (Fig. 5)
When the tip of the joint 11 is inserted into the joint receiving portion 25 of the water supply pipe 20, the engaging male thread 11 a at the tip of the joint 11 and the engaging female thread 26 at the back of the joint receiving portion 25 come into contact. In this state, the engaging male thread 11a and the engaging female thread 26 are aligned with each other, and the shower head 10 is rotated, whereby the engaging male thread 11a and the engaging female thread 26 are screwed together. (FIG. 6) Since the engaging male screw thread 11a and the engaging female screw thread 26 are formed by two each, when the shower head unit 10 is rotated about two times with respect to the water supply pipe 20, the engaging member 11 of the shower head unit 10 is engaged. As shown in the figure, the male thread 11a passes through the engaging female thread 26 of the joint receiving portion 25, and the screwed state of both is released. In this state, the joint 11 is received deeper in the joint receiving portion 25 by simply pressing the shower head portion 10 in the direction toward the upper surface of the water supply pipe 20 without rotating the shower head portion 10.

  At this time, the O-ring 11 c fitted on the outer periphery of the joint 11 is pushed into the watertight cylindrical portion 28 of the joint receiving portion 25. Thereby, the watertightness between the joint 11 and the shower head part 10 is ensured. Furthermore, it pushes in until the upper surface of the joint 11 of the shower head part 10 contacts the upper inner wall surface of the joint receiving part 25 of the water supply pipe 20. In this state, the angle of the water spray plate 12 of the shower head unit 10 is adjusted, and finally the screw 30 is tightened. By tightening the screw 30, the shower head unit 10 is fixed to the water supply pipe 20. (Fig. 7)

Moreover, in the use state of the shower head unit 10 according to the present embodiment, hot water supplied from the water pipe 22 inside the water supply pipe 20 passes through the water passage 17 of the shower head connection part 24 at the tip of the water pipe 20 and is sprinkled. The water is discharged from the water spray holes 12d of the packing 12b in the plate portion 12. At this time, the shower head unit 10 receives a force in a direction in which the shower head unit 10 is pulled out from the shower head connection unit 24 at the tip of the water supply pipe 20 and a force that vibrates the shower head unit 10 due to the water supply pressure. In a normal use state, the shower head unit 10 is fixed with the screw 30, so that the shower head unit 10 does not come out of the shower head connection unit 24 at the tip of the water supply pipe 20 even under such a water supply pressure. .
Moreover, even if the shower head part 10 comes off from the shower head connection part 24 at the tip of the water supply pipe 20 due to insufficient tightening force of the screw 30 or forgetting to tighten it, it is once screwed when the shower head part 10 is attached, Since the engaging male thread 11a of the joint 11 of the shower head 10 in the state of passing and the engaging female thread 26 at the tip of the water supply pipe 20 are engaged, the shower head 10 from the shower head connecting part 24 at the tip of the water supply pipe 20 is engaged. Dropping is prevented.
That is, in order to extract the shower head 10 from the shower head connection 24 at the tip of the water supply pipe 20, the shower head 10 and the shower head connection 24 at the tip of the water supply pipe 20 are aligned, and the engagement male thread 11a and the engagement female thread 26 are aligned. Therefore, the shower head unit 10 will not accidentally fall out of the water supply pipe 20.

  Moreover, if the screw 30 is loosened due to insufficient tightening force or forgetting to tighten, the water tightness due to the O-ring 40 is lost. Thereby, it is recognized by the user that the hot water leaks to the outside from between the hole processing portion 29 on the upper surface of the water supply pipe 20 and the screw 30 and the screw 30 is out of the predetermined installation position.

According to the water discharge device 1 of the present invention, the engagement male thread 11a of the joint 11 of the shower head portion 10 and the shower head connection portion 24 at the tip of the water supply pipe 20 even when the screw 30 is loosened due to long-term use or the like. Since the female thread 26 is still in the engaged state, it is possible to more reliably prevent the shower head unit 10 from falling off.

In this embodiment, the case where two screws 30 as fixing means are used on the upper surface of the water supply pipe 20 has been described. However, as shown in FIG. 8, only one screw 30 may be used, and the side surfaces 20a and 20b It may be provided. Further, three screws 30 may be used.
Moreover, since the central axis of the screw 30 which is a fixing means of this embodiment and the central axis of the state in which the shower head part 10 is attached to the water supply pipe 20 are not coaxial, rotation of the shower head part 10 is prevented. .

External perspective view showing the water discharge device of the present embodiment Cross section AA of the shower head Cross section BB diagram of water discharge device The perspective view which showed the state before the assembly of a shower head part. Cross-sectional perspective view showing a state in which the shower head is inserted into the water supply pipe The cross-sectional perspective view which showed the state which the shower head part engaging thread part and the water supply pipe engaging thread part screwed together Cross-sectional perspective view showing a state in which the shower head portion and the water supply pipe are fixed by fixing means External perspective view showing another embodiment

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Water discharging apparatus 2 ... Water discharging apparatus main-body part 10 ... Shower head part 11 ... Joint 11a ... Engagement thread (shower head part engagement screw part)
11b ... Projection 11c ... O-ring 11d ... Notch 11e ... Female screw 12 ... Sprinkling plate 12a ... Sprinkling plate 12b ... Packing 12c ... Back cover 12d ... Sprinkling hole 13 ... Fixing ring 14 ... Fixing ring screw 15 ... Sprinkling plate Screws 16, 17 ... Water passage 20 ... Water supply pipes 20a, 20b ... Water supply pipe side surface 21 ... Main body connection part 22 ... Water pipe 23 ... Water pipe connection part 24 ... Shower head connection part 25 ... Fitting receiving part 26 ... Screw thread ( Water supply pipe threaded part)
27 ... O-ring 28 ... Watertight cylindrical part 29 ... Hole processing part 30 ... Screw (fixing means)
40 ... O-ring (sealing means)

Claims (4)

A water supply pipe extending horizontally;
A water discharge device comprising a shower head connected to extend in the vertical direction of the bottom surface of the water supply pipe,
A fixing means for attaching and fixing the shower head portion to the water supply pipe at a predetermined installation position;
The water supply pipe includes a water supply pipe engaging thread portion,
When the shower head part is attached to the water supply pipe, the shower head part is once screwed into the water pipe engaging thread part, and the water supply pipe is in a state where the shower head part is fixed at the installation position. A water discharging device comprising a shower head portion engaging screw portion positioned so as to pass over a tube engaging screw portion.
2. The water discharge device according to claim 1, further comprising a sealing means for watertightly sealing between the water supply pipe and the fixing means in a state where the shower head portion is fixed to the water supply pipe by the fixing means.
The said fixing | fixed means is provided in the position from which the said shower head part remove | deviated from the center axis | shaft of the state attached to the said water supply pipe | tube on the upper surface or side surface of the said water supply pipe | tube. Water discharge device.
  The water discharging apparatus according to any one of claims 1 to 3, wherein a plurality of the fixing means are provided.

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