JP3678976B2 - Connection structure between water discharge head and water pipe - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a connection structure between a water discharge head and a water pipe suitable for connection between a shower head and a shower hose.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, a faucet provided with a water outlet and capable of drawing out a shower head that discharges water from the water outlet, together with a shower hose connected to the shower head, has been widely used as a hair basin faucet, a kitchen faucet, and the like.
[0003]
FIG. 15 shows a conventional example of this kind of faucet.
In the figure, reference numeral 200 denotes a counter as an attachment base, and is fixedly attached to the counter 200 at a position where the faucet body 202 and the water discharger 204 are separated from each other.
A water and hot water supply pipe 206 is connected to the faucet body 202, and water and hot water are supplied to the faucet body 202 through the supply pipe 206.
[0004]
The faucet body 202 mixes the supplied water and hot water at a predetermined ratio based on the operation of the handle 208, and flows the mixed water out through the outflow pipe 210.
A flexible shower hose 212 is connected to the outflow pipe 210, and the mixed water is sent to a shower head (water discharge head) 214 described later through the shower hose 212.
[0005]
The water discharge unit 204 includes the shower head 214 and a tubular and curved head holder 216 that holds the shower head 214.
A slide tube 218 is connected to the head holder 216 so as to move up and down integrally. The slide tube 218 is slidably inserted into a guide tube 220 having an external thread on the outer peripheral surface.
[0006]
The shower head 214 includes a water discharge port 222 on the lower surface, and a switching operation unit 224 that switches water discharged from the water discharge port 222 from rectified water discharge to shower water discharge or vice versa.
The shower head 214 is connected to the slide tube 218 and the tip of a shower hose 212 inserted through the head holder 216, and the shower head 214 can be pulled out of the head holder 216 together with the shower hose 212.
[0007]
[Problems to be solved by the invention]
In this type of faucet, the shower head 214 and the shower hose 212 are screw-connected, and the screw connection portion is bonded and fixed with an adhesive. In this case, the shower head 214 and the shower hose 212 can be assembled. In addition to this, there is a problem that torque management at the time of screwing must be properly performed, and in addition, when the shower head 214 and the shower hose 212 are disassembled, the resolvability is poor.
[0008]
The connection between the shower head and the shower hose has been described above as an example, but this problem may occur when the shower head is connected to a pipe-shaped normal water pipe or the water discharge head other than the shower head and the shower hose or a rigid water pipe. It can also occur in common when connecting to a water pipe such as the above.
[0009]
[Means for Solving the Problems]
The connection structure between the water discharge head and the water pipe of the present invention has been devised in order to solve such a problem.
Thus to those of claim 1, a water discharge head for spouting from said discharge water inlet comprises a spout, a connection structure between the water pipe for performing the water passing to said discharge water head, the male before Kidori water tube A pipe part is provided so that a female pipe part is provided on the water discharge head so that they are fitted, and a stopper ring that is elastically deformable in a radial direction is provided on the outer peripheral surface of the male pipe part. It provided an engagement recess to be engaged in the axial direction with respect to the stopper ring to the surface, respectively, along with inserting the male pipe portion in said female tube portion with the elastic deformation of the stopper ring, the stopper ring engaging and the stopper ring is engaged into the engagement recess at where the recess reached the position opposed in the axial direction, without so as to connect with their water discharge head and the water pipe,且 one said stopper ring is circumferentially interrupted by-out setting digit notch over a predetermined circumferential length at a predetermined position Te While with is provided integrally rotating state with the male pipe part is, above the water discharge head and the engaging recess engaging recesses and openings for possible exposure work the stopper ring is secured to the distal end side of the It is characterized by being.
[0010]
According to a second aspect of the present invention, in the first aspect , one of the stopper ring and the male pipe portion is provided with a protrusion for rotational positioning, and the other is provided with a corresponding recess, which is related to the rotational direction. It is characterized by matching.
[0011]
[Operation and effect of the invention]
As described above, according to the first aspect, the water discharge head and the water pipe are fitted to each other in the male pipe portion and the female pipe portion, and the stopper ring is elastically deformable in the radial direction in the male pipe portion. providing one, the engagement recess provided in the female pipe section, with the elastic deformation of the stopper ring to insert the male pipe portion to a female pipe part, and to engage each other in the axial direction thereof at a predetermined position in the axial direction According to this connection structure, simply connecting the male pipe part to the female pipe part by simply inserting the male pipe part into the female pipe part, that is, connecting the water discharge head to the water pipe The work can be easily performed without managing the screwing torque as in the prior art .
[0012]
Of what the claim 1, which is provided integrally rotating state to the male pipe part while separated by notches the scan Topparingu circumferential predetermined positions, also work capable expose the engaging recess and the stopper ring is in the water discharge head In this way, when the water discharge head and the water pipe are disassembled, this can be easily performed.
[0013]
Specifically, the diameter of the stopper ring is reduced through the work opening secured in the water discharge head, thereby releasing the engagement between the stopper ring and the engagement recess, thereby pivoting the water discharge head and the water pipe. It can move in the direction and can be disassembled.
At this time, since the stopper ring is provided so as to rotate integrally with the water pipe, the position of the rotational position is set so that the notch of the stopper ring is correctly oriented to the work opening secured in the water discharge head by rotating the water pipe. The stopper ring can be easily adjusted, and the stopper ring can be easily reduced in diameter by sandwiching both ends in the circumferential direction of the stopper ring facing each other with a notch in the shrinking direction with a tool such as radio pliers. Can do.
[0014]
In this case, one of the stopper ring and the male tube portion is provided with a rotation positioning projection, and the other is provided with a corresponding recess. The water pipe and the water pipe can be rotated together (claim 2 ).
[0015]
【Example】
Next, embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 shows an example of a faucet. In the figure, reference numeral 10 denotes a counter as a mounting base, and the faucet body 12 and the water discharge portion 14 are attached and fixed to the counter 10 at positions separated from each other. .
A water and hot water supply pipe 16 is connected to the faucet body 12, and water and hot water are supplied to the faucet body 12 through the supply pipe 16.
[0016]
The faucet body 12 mixes the supplied water and hot water at a predetermined ratio based on the rotating operation of the handle 18, and the mixed water flows out through the outflow pipe 20.
A flexible shower hose 22 is connected to the outflow pipe 20, and the mixed water is guided to a shower head (water discharge head) 24 described later through the shower hose 22.
[0017]
The water discharger 14 includes the shower head 24 and a tubular and curved head holder 26 that holds the shower head 24.
A slide tube 28 is connected to the head holder 26 so as to move up and down integrally. The slide tube 28 is slidably inserted into a guide tube 30 having an external thread on the outer peripheral surface.
[0018]
The shower head 24 includes a water discharge port 32 on the lower surface, and a switching operation unit 34 that switches the water discharged from the water discharge port 32 from the rectified water discharge to the shower water discharge or vice versa.
A tip of the shower hose 22 is connected to the shower head 24, and the shower head 24 can be pulled out together with the shower hose 22 from the head holder 26.
[0019]
2 and 3 specifically show the internal structure of the shower head 24 and its peripheral portion.
As shown in the figure, a cylindrical hose guide 36 is attached to the tip of the head holder 26 by locking the elastic locking claw 38 and the locking hole 40.
[0020]
The hose guide 36 is a guide that slides through the shower hose 22 and has a male fitting portion 42 that protrudes forward.
On the other hand, the shower head 24 is provided with a corresponding female fitting portion 44, and the shower head 24 can be attached to and detached from the head holder 26 based on the fitting of the female fitting portion 44 and the male fitting portion 42. Is retained.
A draining spacer 45 having a small cylindrical shape is attached to the rear end portion of the hose guide 36. The draining spacer 45 is a member that drains water traveling on the outer surface of the shower hose 22.
[0021]
A lower portion of the water discharge head 24 is configured as a cap 46, and a rectifying water discharge port 32 </ b> A is formed at the center of the lower surface of the cap 46, and a number of shower water discharge ports 32 </ b> B are formed at positions surrounding the cap.
Here, the cap 46 is detachably attached to the upper head body 48 by screw connection.
[0022]
Inside the shower head 24, a plate 49 and a valve body 50 that slides on the upper surface of the plate 49 are provided.
The plate 49 is provided with an opening 54A that communicates with the rectifying water passage 52A that reaches the rectifying water discharge port 32A, and an unillustrated opening that communicates with the shower water passage 52B that reaches the shower water discharge port 32B. The two openings are alternatively opened or closed by sliding of the valve body 50.
[0023]
FIG. 2 shows a state in which the valve body 50 closes the opening 54A. In this state, the mixed water led from the shower hose 22 to the shower head 24 flows into the shower water passage 52B through the other opening (not shown). Subsequently, shower water is discharged from the shower water outlet 32B.
[0024]
Further, when the valve body 50 is closed at the other opening, the opening 54A is opened. In this state, the mixed water led to the shower head 24 flows into the rectifying water passage 52A from the opening 54A, and then continues. Rectified water is discharged from the rectified water discharge port 32A.
[0025]
The valve body 50 is provided with a shaft portion 56 in an integrally rotating state, and the shaft portion 56 is connected to the seesaw switch type switching operation portion 34 in an integrally rotating state.
That is, when the seesaw switch type switching operation part 34 is switched, the valve body 50 slides on the plate 49 via the shaft part 56 and switches the water discharge state from the rectified water discharge to the shower water discharge or vice versa.
[0026]
As clearly shown in FIG. 6, a male pipe portion 58 is provided at the distal end portion of the shower hose 22.
On the other hand, the shower head 24 is provided with a female pipe portion 60 as shown in FIG. 5, and a male pipe portion 58 is attached to the female pipe portion 60 as an O-ring serving as an elastic seal ring. A water-tight fitting is achieved via 62.
[0027]
A flange 64 is provided at the tip of the male pipe portion 58, and an annular housing groove 66 is formed in the rear portion of the flange 64, and the diameter can be increased or decreased in the radial direction. A stopper ring 70 having elasticity is attached.
[0028]
Here, a predetermined gap is secured between the inner surface of the stopper ring 70 and the bottom surface of the receiving groove 66 as shown in FIGS. 7 (I) (A), (II) (A) (stopper). When the ring 70 is in the diameter-expanded state that is the original shape), the stopper ring 70 mounted in the receiving groove 66 based on the gap can be elastically reduced in diameter in the centripetal direction.
[0029]
As shown in FIG. 6, the stopper ring 70 is formed with a notch 72 between a pair of circumferential ends 71 and 71 over a predetermined circumferential length. It is divided in the direction.
[0030]
The stopper ring 70 has a cylindrical portion 74 and a hook-like portion 76 rising radially outward from the outer peripheral surface thereof. As shown in FIG. 3, the hook-like portion 76 is a female tube in the shower head 24. Engage in a substantially annular engagement groove (engagement recess) 78 formed in the portion 60 and engage with the engagement groove 78 in the axial direction, and the engagement action causes the shower hose 22 and the shower head 24 to Are connected in the axial direction.
[0031]
As shown in FIG. 6, the cylindrical portion 74 of the stopper ring 70 is provided with a projection 80 for determining the position in the rotational direction, and this projection 80 is formed in the recess 82 of the flange 64 in the male pipe portion 58. The stopper ring 70 is integrally rotated together with the shower hose 22 by being inserted.
[0032]
In the case of the faucet of this example, the shower head 24 and the shower hose 22 can be connected as follows.
That is, under the condition that the stopper ring 70 is attached to the shower hose 22 as shown in FIG. 7 (I), the male tube portion 58 at the tip of the shower hose 22 as shown in FIG. 7 (II). Is inserted into the female pipe portion 60 of the shower head 24.
[0033]
At this time, as shown in FIG. 8 (III), the stopper ring 70 attached to the male pipe portion 58 is elastically deformed and reduced in diameter, and as shown in FIG. 8 (IV), the stopper ring 70 is Specifically, when the hook-like portion 76 reaches a position facing the engagement groove 78 of the shower head 24 in the axial direction, the stopper ring 70 is expanded in diameter to the original shape and is engaged in the engagement groove 78. Enter.
Here, the hook-like portion 76 of the stopper ring 70 and the engaging groove 78 are engaged in the axial direction, and the shower hose 22 and the shower head 24 are coupled in the axial direction.
[0034]
9 to 11 show the operation when the shower hose 22 and the shower head 24 are disassembled.
As shown in the figure, in this example, the shower hose 22 and the shower head 24 can be disassembled as follows.
That is, first, the cap 46 and the plate 49 in the shower head 24 are removed. In this state, openings 84 and 86 are formed in the showerhead 24 as shown in FIGS. 4 and 9I.
[0035]
Therefore, by rotating the shower hose 22, the stopper ring 70 attached to the tip of the shower hose 22 is integrally rotated, and both circumferential ends 71 of the stopper ring 70 face the opening 86 as shown in FIG. 9 (II). To position.
[0036]
In this state, as shown in FIG. 10 (III), both circumferential ends 71 of the stopper ring 70 are sandwiched with a tool such as a radio pliers, and the diameter of the stopper ring 70 is reduced.
As a result, the stopper ring 70 and the engagement groove 78 are disengaged from each other. Therefore, as shown in FIG. 10 (IV), the shower hose 22 is pulled out in the right direction in the figure.
Here, as shown in FIG. 11 (V), the shower head 24 and the shower hose 22 are separated.
[0037]
According to the connection structure of this example as described above, the male pipe part 58 of the shower hose 22 is simply inserted into the female pipe part 60 of the shower head 24, and the male pipe part 58 and the female pipe part 60 can be connected with one touch. The connection, that is, the connecting and assembling work between the shower hose 22 and the shower head 24 can be easily performed without requiring the management of the screwing torque as in the prior art.
[0038]
On the other hand, when the shower hose 22 and the shower head 24 are disassembled, the openings 84 and 86 of the shower head 24 are used as work openings, and the stopper ring 70 is sandwiched to reduce the diameter so that the stopper ring can be easily removed. 70 and the engagement groove 78 can be disengaged, and the shower head 24 and the shower hose 22 can be separated in the axial direction and disconnected.
[0039]
At that time, since the stopper ring 70 is provided so as to rotate integrally with the shower hose 22, the circumferential ends 71 of the stopper ring 70 can be easily positioned so as to face the opening 86 by rotating the shower hose 22. In addition, the diameter reduction operation for the stopper ring 70 can be easily performed.
[0040]
12, 13 and 14 show another embodiment of the present invention.
As shown in FIG. 12, the faucet of this example is a single lever type mixed faucet, and a handle 90 is provided at the upper part of the faucet body 88 so as to be rotatable left and right and up and down. A water discharge pipe 92 extends forward from the lower surface of the faucet body 88.
The water discharge pipe 92 is composed of a shower head 24 at the tip and a rigid (non-flexible) water flow pipe 94 made of a metal pipe for water flow therethrough.
[0041]
As shown in FIG. 14, the distal end portion of the water flow pipe 94 is coupled to the shower head 24 in the axial direction via a cylindrical member 96.
Similarly to the above embodiment, the water pipe 94 is provided with a male pipe portion 58 at the tip thereof, and an O-ring 62 is attached thereto, and the male pipe portion 58 corresponds to the corresponding female pipe portion 60 of the shower head 24. The O-ring 62 is fitted in a watertight manner.
[0042]
The male pipe portion 58 is also provided with a stopper ring 70 having the same structure as that of the above embodiment, and the stopper ring 70 is engaged with the engaging groove 78 of the female pipe portion 60 in the shower head 24 in the axial direction. By combining, the water pipe 94 and the shower head 24 are connected.
Since the connection structure is the same as in the above embodiment, only the same reference numerals are given to the same portions, and detailed description thereof is omitted.
[0043]
Also in this example, the water pipe 94 and the shower head 24 can be easily connected, and can be easily disassembled during disassembly.
[0044]
Although the embodiment of the present invention has been described in detail above, this is merely an example.
For example, in the above embodiment, the case where a shower head and a shower hose or a pipe-shaped water pipe are connected has been described as an example. However, the present invention is a water discharge head that performs only rectified water discharge and a hose or pipe-shaped water pipe connected thereto. The present invention can be applied in various forms within a range that does not depart from the gist of the invention.
[Brief description of the drawings]
FIG. 1 is a view showing an example of a faucet including a connection structure according to an embodiment of the present invention.
FIG. 2 is a cross-sectional view of an essential part showing a shower head and its peripheral part in the same embodiment.
3 is a cross-sectional view of a main part showing a state in which the shower head of FIG. 2 is pulled out together with a shower hose.
4 is a side cross-sectional view of the shower head shown in FIG. 3 and a bottom view of the cap and the plate removed. FIG.
FIG. 5 is a cross-sectional view showing the shower head and the shower hose shown in FIG. 4 in an exploded state.
6 is a perspective view showing the shower head and the shower hose shown in FIG. 4 in an exploded state.
FIG. 7 is an explanatory diagram of procedures and actions when connecting a shower head and a shower hose of the same embodiment.
FIG. 8 is an explanatory diagram of procedures and actions following FIG. 7;
FIG. 9 is an explanatory diagram of procedures and actions when disassembling the shower head and the shower hose of the same embodiment.
FIG. 10 is an explanatory diagram of procedures and actions following FIG. 9;
FIG. 11 is an explanatory diagram of procedures and actions following FIG.
FIG. 12 is a view showing an example of a faucet including a connection structure according to another embodiment of the present invention.
FIG. 13 is a cross-sectional view showing the shower head of the same embodiment together with its peripheral portion.
14 is a cross-sectional view showing the shower head and water pipe of FIG. 13 in an exploded state.
FIG. 15 is an explanatory diagram for explaining the background of the present invention.
[Explanation of symbols]
22 Shower hose 24 Shower head (water discharge head)
32, 32A, 32B Water outlet 58 Male pipe part 60 Female pipe part 70 Stopper ring 72 Notch 78 Engaging groove (engaging recess)
80 Projection 82 Recess 84,86 Opening (working opening)
94 water pipe

Claims (2)

A connection structure between a water discharge head that includes a water discharge port and discharges water from the water discharge port, and a water pipe that conducts water to the water discharge head,
The male pipe part before Kidori water pipe, with eggplant as fitted them by providing a female pipe section to the water discharge head, the elastically deformable stopper ring on an outer peripheral surface in the radial direction of the male pipe portion, said An engagement recess that engages the stopper ring in the axial direction is provided on the inner peripheral surface of the female pipe part, and the male pipe part is inserted into the female pipe part with elastic deformation of the stopper ring. the stopper ring where the said stopper ring and the engagement recess has reached the position opposed in the axial direction by engaged into engagement recess, without so as to connect with their water discharge head and the water pipe, one 且 the one which in is provided integrally rotating state to the male pipe portion, the distal end than said engaging recess to said water discharge head with the stopper ring is in separated by-out setting digit notch over a predetermined circumferential length in the circumferential direction by a predetermined location The engaging recess and the stop on the side Connection structure between the water discharge head and the water pipe, characterized in that the opening for the possible exposure work ring are secured. In Claim 1, The one of the said stopper ring and a male pipe part is provided with the protrusion for rotation position determination, and the other is provided with the corresponding dent, and these are engaging in the rotation direction. Connection structure between water discharge head and water pipe.

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