JPH0914531A - Connecting fixture for faucet directly connected water purifier - Google Patents

Abstract

PURPOSE: To facilitate mounting and prevent a thread of a faucet from being damaged, by bringing a tip end of an external thread cylinder into contact with a water delivery port, and locking a cap nut screwed to a water purifier main unit to an outer flange of the external thread cylinder. CONSTITUTION: A foaming cap 4 of a spout 1 is left as mounted, to externally fit a cap nut 7 to an external thread cylinder 18, and to integrally form the external thread cylinder 18 and a holding ring 15 in a screwed manner, with an upper end of the external thread cylinder 18 left as pressed to a lower surface of the foaming cap 4. When a U-shaped member 13 is inserted in the direction B, inward fold back pieces 14, 14 are fitted to a slide groove 20 in both sides of the holding ring 15. Next when the external thread cylinder 18 is screwed from downward to be advanced in the direction C, the external thread cylinder 18 firmly fixes the U-shaped member 13 and the spout 1. Then the cap nut 7 is screwed to a water purifier. Also in the case of mounting the water purifier in a cylindrical faucet 22, the cap nut 7 is externally fitted to the external thread cylinder 18, to screw the external thread cylinder 18 and the holding ring 15 integrally formed, and to externally fit the holding ring 15 to the cylindrical faucet 22 fixed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connector for a water purifier directly connected to a faucet.

[0002]

2. Description of the Related Art In general, a faucet of a water supply has a smooth cylindrical outer end (a hydrant of A type and B type according to JIS, hereinafter referred to as a first cylindrical faucet, for example, JP-A-59-183881 and JP-A-60-18
No. 3082 gazette, etc.) and one with an outer flange (bulge) on the outer surface of the tip (for example, a non-JIS standard free faucet, a horizontal free faucet, etc. correspond to the second outer flange faucet, for example. (See Japanese Utility Model Publication No. 61-83410, Japanese Utility Model Publication No. 61-111591, Japanese Utility Model Publication No. 1-31352, and Japanese Utility Model Publication No. 4-50959) and a male screw (in some cases, female thread) on the outer surface of the tip. What is cut into a foam faucet (for example, one that has a spout on the tip side lower surface of the spout of the hot and cold water mixing tap and that is screwed into the foam cap at this spout corresponds to the third male screw faucet. Good,
For example, Japanese Utility Model Publication No. 51-20143, Japanese Utility Model Publication No. 60-2
No. 2984, Japanese Utility Model Publication No. 62-40714, Japanese Utility Model Publication No. 63-2147, etc.).

In order to connect the water purifier to these faucets by directly connecting them, a connecting tool suitable for each faucet is used. That is, in the connector used for the first cylindrical faucet, a cylindrical body having an outer flange at the lower end and having a diameter slightly larger than the cylindrical shape of the faucet is loosely fitted to the faucet, and screws are radially formed from the outer periphery thereof. To fix the faucet and the cylinder (this is called a bell chuck grip), and to the outer flange of this cylinder, a cap nut (this is formed by cutting the head of the cap nut to form an inner flange) In this specification, a connection nut, a mounting nut, and a nut with an inner flange, which are abbreviated as a cap nut in the present specification, are engaged, and a water purifier body is screwed to the cap nut (see the above-mentioned publication). .

[0004] Further, in a connector used for a second outer flange tap, a C ring (referred to as a ring with a cut) having an outer flange at a lower end is externally fitted to the tap, and this is fitted to the outer flange of the tap. The cap nut is locked to the outer flange of the C-ring, and the water purifier main body is screwed to the cap nut (for example, Japanese Utility Model Laid-Open No. 61-111591, and Japanese Utility Model Publication No. 1-31352 described above). Reference).

Further, in the third fitting for a male screw tap, after removing the foam cap, an external flanged female screw cylinder is screwed onto this male screw, and the external flanged female screw cylinder is
The cap nut is locked, and the water purifier body is screwed to the cap nut. Therefore, the cap nut is one of the components in any connection tool.

[0006] On the other hand, there is also known a connector which does not use a cap nut as described above. That is, the actual fair 5-5995
In the connecting device shown in the publication, a horseshoe-shaped member is used,
This horseshoe-shaped member is arranged along the faucet, the water purifier is hung by a plurality of screws at its connecting part, and a support metal fitting is fixed to the fork part to fix the base pipe body of the faucet with this support metal fitting. I support you.

However, in such a connector using a horseshoe-shaped member, a water purifier can be attached regardless of the type of the faucet, but the water purifier body is directly fixed and suspended by a plurality of screws. There is a problem that the appearance is impaired and dust and the like are deposited.

[0008]

By the way, since a water purifier directly connected to a faucet using a cap nut can be easily attached and detached and is preferable for maintenance of the water purifier, the cap nut is an essential part for the connection tool. .

Therefore, in a general faucet direct connection type water purifier,
A connector mainly composed of a cap nut is set as an accessory part of the water purifier. However, with conventional fittings,
In addition to the cap nut, the number of parts was large, and the number of mounting steps was large, resulting in frequent mounting errors.

For example, the diameter of each of the taps of the first cylindrical shape and the second outer flange is generally 16 mmφ and 19 mm.
Since it is mmφ, two types of cylinders to be used for the first cylindrical faucet are required, and a total of three points are obtained by adding four screws and packing.

[0011] In addition, if the packing is added to the C ring used for the second outer flange faucet, a total of two points are obtained.

In the third male tap, there are generally four types of screws (W22-20, M24 × 1,
W24-20 and 27UNF) and the outer diameter of the screw is two or more. Therefore, at least two kinds of female screw cylinders required after removing the foam cap and a male screw cylinder are required. If you add the packing,
A total of at least 6 points. Moreover, with this third male screw faucet, it is difficult for the user to distinguish the type of screw, and because this male screw is made of resin due to its heat insulation, it is easily damaged and cannot be re-attached and detached if it is forcibly screwed. Therefore, there was no connector that can be commonly applied to the third male screw faucet.

[0013] As described above, the connecting tool having the cap nut as one of the parts requires 12 parts for the other parts of the cap nut, and these parts are set as accessories in the faucet direct connection type water purifier. Therefore, even if the user purchases the faucet direct connection type water purifier as described above, there is a problem that the faucet screw is damaged even if it is forcibly attached.

[0014]

SUMMARY OF THE INVENTION The present invention has been made in order to solve these problems. In particular, the faucet should not be disassembled as much as possible, the number of mounting steps should be reduced, and a screw member should not be used. The purpose is to reduce the number of C-rings, to combine the first, second, and third faucets into two faucets for easy handling, and so on. 1) A U-shaped member is inserted from a faucet tip so as to sandwich the water discharge port into a water faucet whose water discharge port is opened substantially downward, and a pair of inwardly folded backs provided on the U-shaped member. A retaining ring having an internal thread engraved on the inner periphery is detachably locked to the piece, and a male threaded cylinder with an outer flange is screwed onto the female thread of the retaining ring so that the tip of the externally threaded cylinder abuts the water outlet. , A cap nut screwed to the body of the water purifier on the outer flange of the male screw cylinder It is a connector of a faucet direct connection type water purifier characterized by being locked, and 2) a C-ring that has different packing fitting grooves formed on the upper and lower surfaces, respectively, and a cap nut screwed with the water purifier body. It is a connector for a water purifier with a direct connection to a faucet characterized by being locked.

[0015]

BRIEF DESCRIPTION OF THE DRAWINGS The invention will be described in more detail with reference to an embodiment shown in the accompanying drawings. FIG. 1 is a perspective view showing a mounting operation of the embodiment of the present invention, FIG. 2 is a perspective view showing another mounting operation of the embodiment, FIG. 3 is an exploded perspective view of a main part of the embodiment, and FIG. It is a whole perspective view of an example.

In this embodiment, for example, the above-mentioned actual fairness 4-50
No. 959, a water purifier directly connected to a faucet, that is, a small water purifier (for example, 2) that generates raw water introduced from a faucet into purified water, or discharges raw water by switching.
(Which produces liters / minute of purified water) can be attached to any type of faucet. In other words, if the connecting device of this embodiment is set as an accessory of the water purifier, the water purifier can be attached to any type of faucet.

First, a description will be given of a state in which a water purifier is attached to a spout of a hot and cold water mixing tap using the connecting tool of this embodiment.

In FIG. 4, reference numeral 1 is a spout of a hot and cold water mixing tap installed on a sink tank in the kitchen, and has a total length of about 2
It is mounted to swing freely at 5cm. Since this spout 1 is made of brass, a resin cover-2 for heat insulation is attached to the tip of the spout 1, the cross-sectional shape of which is formed in a semicircular shape, and the downward spout 3 (see FIG. 1) is formed on the lower surface thereof. Is provided.

The spout 3 has a foam cap 4 (FIG. 1 (A)) in which a wire mesh or the like is built in for spouting water.
) Is detachably screwed. Therefore, a male screw (not shown) is engraved on the outer periphery of the water outlet 3.

A faucet direct connection type water purifier 6 is attached to the spout 1 as described above via the following connecting tool 5.
In this water purifier 6, a mounting nut portion 8 that is screwed into a cap nut 7 (which has an inner flange formed by cutting the head portion of the cap nut as described above) is projected on the upper surface. 8, a water purification cartridge storage cylinder 9 is horizontally provided, and the purification water spouting port 1 is downwardly adjacent to the storage cylinder 9.
0 is provided. Also, a raw water spout 11 is provided directly below the mounting male screw portion 8. A switching handle 12 is provided on a side portion between the mounting male screw portion 8 and the raw water spouting port 11. Of course, the faucet direct connection type water purifier 6 is not limited to such a shape.

The connection tool 5 applied to the spout 1 and the water purifier 6 can be fitted onto the resin cover 2 having a slightly thicker wall, and can be discharged with the foam cap 4 still attached. A U-shaped member 13 that sandwiches the water port 3, a retaining ring 15 that is engaged with a pair of inward folding pieces 14, 14 of the U-shaped member 13, and has a female screw 16 engraved on the inner circumference thereof. A male screw cylinder 18 with a metal outer flange 17 that is screwed into the female screw 16 of the retaining ring 15 and that locks the cap nut 7.
And a packing 19 which is interposed between the upper end of the male screw cylinder 18 and the lower surface of the foam cap 4.

The U-shaped member 13 is formed of a U-shaped metal piece, and has a pair of U-shaped pieces provided with inwardly folded pieces 14, 14 at the ends thereof. Therefore, the foam cap 4 is sandwiched and protrudes between the inner folded pieces 14 and 14.

The holding ring 15 is formed of a metal cylinder, and a female screw 16 is engraved on the inner circumference. Also,
On both sides of the outer peripheral surface, two upper and lower horizontal slide grooves 20, 2 are provided.
0 (or three levels) is formed. In the vicinity of the upper slide groove 20, radial screw screw holes 21 and 21 are provided.
... has been drilled.

Therefore, the water purifier 6 is attached to the spout 1 of the hot and cold water mixing tap by the following attaching operation.

That is, in FIG. 1A, while the foam cap 4 of the spout 1 is still attached, the male screw cylinder 1
8, the cap nut 7 is externally fitted, and the male screw cylinder 18 and the retaining ring 1
5 is screwed and integrated, and the upper end of the male screw cylinder 18 is pressed against the lower surface of the foam cap 4 via the packing 19. When the U-shaped member 13 is inserted in the direction b in the figure, that is, so as to sandwich the foam cap 4 from the tip of the faucet, a pair of inward folding pieces 14, 14 of the U-shaped member 13 are inserted.
Fit into the slide grooves 20 on both sides of the retaining ring 15.
Next, when the male screw cylinder 18 is screwed from below into the direction c in the figure, the male screw cylinder 18 presses the packing 19 and firmly fixes the U-shaped member 13 and the spout 1. Then, when the cap nut 7 is screwed into the mounting male thread portion 8 of the water purifier 6, the water purifier 6 is attached.

Next, a case where the water purifier 6 is attached to a cylindrical faucet (a pipe-shaped spout curved downward) 22 as shown in FIG. 1B will be described.

Also in this case, as the connecting tool 5, the holding ring 15, the male screw cylinder 18, the packing 19 and the cap nut 7 are parts. Then, as shown in FIG. 1 (B), the cap nut 7 is externally fitted to the male screw cylinder 18, the male screw cylinder 18 and the holding ring 15 are screwed and integrated, and the holding ring 18 is externally fitted to the faucet. Screw holes 21,
Screw the screws 23, 23,.
And the holding ring 15 are fixed.

In the connection tool 5 of the two examples as described above, one of the third male taps and the first cylindrical tap described in the conventional example can be handled together, and An integral unit of the holding ring 15 and the male screw cylinder 18 is used.

Next, a case where the water purifier 6 is attached to each of the male screw faucet 24 and the outer flange faucet 25 as shown in FIG. 2A will be described.

In the case of the male screw faucet 24, as shown in FIG. 2 (A), the foam cap 26 is removed, the cap nut 7 is fitted into the male screw 24A of the faucet, and then the following external flange is attached. C ring 27 of this is fitted, and this C ring 27
The cap nut 7 is locked to and the water purifier 6 is attached.

The C-ring 27 with the outer flange is made of synthetic resin and is provided with a notch 28. The packing fitting groove 2 having different diameters and therefore different depths is provided on the upper and lower surfaces thereof.
9 and 30 are formed. For example, in the case of a large faucet diameter (16 mmφ) or a male screw from which the foam cap 26 is removed, the large-diameter packing fitting groove 29 is used downward, while a small faucet diameter or In the case of the outer flange faucet 25 such as 2 (B), the packing fitting groove 30 having a small diameter is used downward. Therefore, one C-ring can be used for two roles.

Next, the case of the outer flange tap 25 will be described. As shown in FIG. 2B, the cap nut 7 and the C ring 27 are fitted into the faucet 25, and then the cap nut 7 is locked to the C ring 27 to mount the water purifier 6.

In the connection tool 5 of the other two examples as described above, another kind of the third male screw tap described in the conventional example and the second outer flange tap can be handled collectively. , And one C-ring 27 is used.

As described above, the components of the connector 5 of this embodiment are, in addition to the cap nut 7 having a predetermined screw inner diameter, the U-shaped member 1.
3, retaining ring 15, male screw cylinder 18, one kind of C ring 2
7, screw 23 and packing 19
If these are set in the water purifier 6, they can be applied to most types of faucets, and the water purifier 6 can be attached. In particular, since the foam cap 4 is attached without using the screws, the type of the screws is not determined, and the screws are not damaged.

The cap nut 7 has different screw inner diameters and types depending on the faucet direct connection type water purifier, but if cap nuts of other types are added to the components of the connector 5, it will be a specialized water purifier. It is convenient for equipment installation work. Further, in order to fit the U-shaped member to a faucet in which a pipe-shaped spout like the first cylindrical faucet of the conventional example described above is curved downward as it is, if it is curved in a side view, this U-shaped member is formed. Instead of increasing the number of members, the present invention can be applied to any faucet without using the C-ring.

[0036]

According to the connecting device of the present invention, the water purifier is constituted by a packing, a U-shaped member, a retaining ring, a screw cylinder and a cap nut, and the number of parts of the connecting device is reduced so that the water purifier can be any type of faucet. Can also be mounted. Further, since the foam cap is not removed and its screws are not used, the mounting is easy and the screws are not damaged. The use of the C-ring of the present invention can be applied to two types of packing, and in this case also, the number of parts can be reduced.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a mounting operation according to an embodiment of the present invention.

FIG. 2 is a perspective view showing another attaching operation of the embodiment.

FIG. 3 is an exploded perspective view of a main part of the embodiment.

FIG. 4 is an overall perspective view of the present embodiment.

[Explanation of symbols]

1 ... spout, 3 ... spout, 4 ... foam cap, 5 ...
Connection tool, 6 ... Water purifier, 7 ... Cap nut, 13 ... U-shaped member, 15 ... Retaining ring, 18 ... Male tube, 27 ... C ring, 29, 30 ... Packing fitting groove

Claims (2)

[Claims] 1. A pair of inward facing members provided on the U-shaped member by inserting a U-shaped member from a tip of the faucet so as to sandwich the water outlet into a water faucet whose water outlet is opened substantially downward. A retaining ring having a female thread engraved on the inner periphery is detachably locked to the folded piece, and a male threaded cylinder with an outer flange is screwed onto the female thread of the retaining ring so that the tip of the male threaded tube contacts the water outlet. contact,
A connector for a faucet direct connection type water purifier, characterized in that a cap nut screwed with the water purifier body is locked to the outer flange of the male screw cylinder. 2. A faucet direct connection type water purifier connector characterized in that C-rings each having a different packing fitting groove formed on the upper and lower surfaces are engaged with cap nuts screwed to the water purifier body.