JP2704372B2 - Faucet direct connection type water purifier connector - Google Patents

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, etc.) and those with an outer flange (bulge) on the outer surface of the tip (for example, a free faucet or a horizontal faucet outside the JIS standard, hereinafter referred to as a second outer flange faucet, for example, Japanese Utility Model Laid-Open No. 61-83410, Japanese Utility Model Laid-Open No. 61-111591, Japanese Utility Model Publication No. 1-33522, Japanese Utility Model Publication No. 4-50959, and the like, and a male screw (sometimes female screw) is provided on the outer surface of the tip. What is cut into a foam type faucet (for example, a spout of a hot and cold water mixing tap is provided with a spout at the lower end side thereof, and the spout is screwed to this foam cap, hereinafter referred to as a 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 directly connect a water purifier to these faucets, fittings suitable for each faucet are 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).

[0005] In the third fitting used for the male screw tap, after removing the foam cap, a female screw cylinder with an outer flange is screwed into the male screw, and the female screw cylinder with the outer flange is connected to
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 suspended by a plurality of screws at the connection portion, a support bracket is fixed to the fork portion, and the base tube of the faucet is supported by the support bracket. ing.

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, in the third male screw faucet, it is difficult for the user to determine the type of the screw, and since the male screw is made of resin for heat insulation, it is easily broken. However, there was no connecting tool commonly applicable to the third male screw tap.

[0013] As described above, in the connecting device in which the cap nut is one of the components, for example, 12 other components are required for the cap nut, and these components are set as accessories in the faucet direct connection type water purifier. Therefore, there is a problem that even if the user purchases the faucet direct-connection type water purifier as described above, it is difficult to attach the faucet, and if the user tries to forcibly attach the water purifier, the faucet screw may be damaged.

[0014]

SUMMARY OF THE INVENTION Accordingly, the present invention has been made to solve these problems. In particular, the present invention is intended to minimize disassembly of a faucet, to reduce the number of mounting steps, and to use a cylinder or a tube without using a screw portion. The purpose is to reduce the number of types of C-rings, to combine the first, second and third faucets into two faucets for easy handling. 1) A U-shaped member is arranged along a tap on a water tap having a water outlet opened substantially downward so as to sandwich the water outlet, and a pair of members provided in the U-shaped member are provided. A retaining ring having a female thread engraved on the inner periphery is detachably engaged with the turned-back piece, a male screw cylinder is screwed into the female thread of the retaining ring, and the male screw cylinder is screwed to advance the distal end of the male screw cylinder. Abuts the water outlet, and a cap nut screwed to the water purifier body is attached to the male screw cylinder. 2) a C-ring in which packing fitting grooves of different diameters are respectively formed on upper and lower surfaces, and a cap nut screwed with the water purifier main body. Is externally fitted to a faucet having a male screw or an outer flange at the tip which is locked by the C-ring, and the cap nut is locked to the C-ring.

[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 denotes a spout of a hot-water mixing tap installed on a kitchen sink tank, which has a total length of about 2;
It is mounted to swing freely at 5cm. Since the spout 1 is made of brass, a resin cover 2 for heat insulation is attached to the tip of the spout 1 and its cross-sectional shape is formed in a semicircular shape, and a downward water outlet 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.
The water purifier 6 is provided with a mounting male thread 8 which is screwed to a cap nut 7 (which is formed by cutting off the head of the cap nut to form an inner flange as described above) on the upper surface. A storage tube 9 for a water purification cartridge is provided horizontally adjacent to the storage tube 8, and the water discharge port 1 is disposed downwardly adjacent to the storage tube 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 spout 11. Of course, the faucet direct connection type water purifier 6 is not limited to such a shape.

The spout 1 and the connector 5 applied to the water purifier 6 can be fitted to the slightly thick resin cover 2 and the spout 1 with the foam cap 4 attached. And a U-shaped member 13 disposed along the spout 1 so as to sandwich the spout 3, and a pair of inwardly folded pieces 14, 14 of the U-shaped member 13 are engaged with each other, and a female screw 16 is engraved on the inner periphery. A retaining ring 15, a male threaded cylinder 18 having a metal outer flange 17 screwed into a female thread 16 of the retaining ring 15 and locking the cap nut 7, an upper end of the male threaded cylinder 18 and a foam cap 4. And the packing 19 interposed between the lower surface and the lower surface.

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. In addition, a female screw may be formed apart from the inner folded pieces 14, 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.
…… is 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 arranged in the direction b in the drawing, that is, along the tip of the faucet so as to sandwich the foam cap 4, a pair of inwardly folded pieces 14,
14 fits into the slide grooves 20 on both sides of the holding 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 mounted.

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, the water purifier 6 is connected to a male tap 24 as shown in FIG. 2A, that is, a tap having a male screw at the tip, and an outer flange tap 25, that is, a tap having an outer flange at the tip. The case of mounting will be described.

In the case of the male tap 24, as shown in FIG. 2 (A), the foam cap 26 is removed, and the cap nut 7 is externally fitted to the male screw 24A of the tap. And remove the C ring 27
The water purifier 6 is mounted by fitting the cap nut 7 inside the lock.

The C-ring 27 with an outer flange is made of synthetic resin and is provided with a notch 28, and packing fitting grooves 29, 30 having different diameters and, therefore, different depths are formed on upper and lower surfaces thereof. ing. For example, in the case of a tap having a large diameter (16 mmφ) or a male screw from which the foam cap 26 has been removed, a large-diameter packing fitting groove 29 is used with the tap down, and on the other hand, a tap having a small tap diameter or FIG.
In the case of the outer flange faucet 25 as shown in (B), the small-diameter packing fitting groove 30 is used with the groove 30 facing down. 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 over the faucet 25, and then the cap nut 7 is fitted over the C-ring 27 and the water purifier 6 is attached.

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.

Although the cap nut 7 has a different screw inner diameter and type depending on the faucet direct connection type water purifier, if another type of cap nut is added to the parts of the connecting tool 5, a specialized water purifier can be used. This is convenient for vessel 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 ...
Connector, 6: water purifier, 7: cap nut, 13: U-shaped member, 15: retaining ring, 18: male screw cylinder, 27: C ring, 29, 30: packing fitting groove

Claims (2)

(57) [Claims] 1. A U-shaped member is placed along a water faucet having a water outlet opening substantially downward so as to sandwich the water outlet.
And a retaining ring having a female thread engraved on its inner periphery is detachably engaged with a pair of inwardly turned pieces provided on the U-shaped member, and a male screw cylinder is attached to the female thread of the retaining ring. Screw
The male screw tube is screwed forward, the tip of the male screw tube abuts on the water outlet, and a cap nut screwed with the water purifier body is locked to the male screw tube. Fittings for vessels. To 2. A top and bottom surfaces, C-ring packing fitting because inclusive grooves of different diameters were formed, and the water purifier body and screwed cap nut, external thread or the C-ring is engaged
Externally fitted to the faucet with the outer flange at the tip, and
A connection device for a water tap directly connected to a faucet, wherein a lock nut is locked .