JPH10159138A - Installation structure of combination faucet - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide installation structure capable of extremely easily communicating and connecting a faucet to an eccentric pipe and certainly maintaining horizontality. SOLUTION: A connecting pipe 4 formed on a downstream end of an eccentric pipe 3 is inserted into an inflow pipe 2 and an O ring 5 is formed on an outer periphery in the neighbourhood of an end part of the connecting pipe 4 on a connecting part of the eccentric pipe 3 to supply hot water or water to a combination faucet 1 and the primary side inflow pipe 2 of the combination faucet 1. Thereafter, a serration 6a and a flange 7 are formed on an outer periphery of the connecting pipe 4 on the upstream side from this O ring 5, a serration 8a to be engaged with the serration 6a and a flange 9 to make contact with the flange 7 are formed on an end part of the inflow pipe 2, and a locking tool 10 to hold contact states of these serrations 6a, 8a and the flanges 7, 8 is installed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water / water mixer tap mounting structure which enables easy connection of an eccentric tube for supplying hot water or water to the water / water mixer tap.

[0002]

2. Description of the Related Art FIG. 8 shows an example of a conventional mounting structure for installing a general hot and cold water mixing tap 1. In FIG. 8, the eccentric pipe 3 for hot water supply and water supply has its upstream side screwed and connected to a hot water supply pipe and a water supply pipe (not shown). It is adjusted to be equal to the interval of 16. In this state, each inflow port 16 of the hot-water mixer tap 1 is connected to the corresponding opening 1 of the eccentric tube 3.
5 and tightening each nut 17 of the bag using a tool such as a spanner or a monkey, the hot and cold water mixing tap 1 can be non-rotatably attached.

[0003]

However, in order to mount the mixing tap 1 as described above, it is necessary to form a cap nut 17 at a connection portion on the downstream side of the eccentric tube 3. That is, in the conventional connection structure, it is necessary to engage the suspension nut 18 with the opening 15 in order to form the cap nut 17 in the opening 15 on the downstream side of the eccentric tube 3, thereby increasing the manufacturing cost of the eccentric tube 3. Was inevitable.

[0004] Further, in order to tighten the cap nut 17, not only a tool such as an extra-large wrench or a monkey must be used, but also the hot-water mixer tap 1 may tilt around the inflow port 16 due to the tightening force. Was. Therefore, the hot and cold water mixing tap 1
It is difficult to attach the hot water mixing tap 1 so that it can be accurately kept horizontal, and the rotation stop by tightening does not have sufficient detent strength, and the hot and cold water mixing tap 1 may tilt during use.

The present invention has been made in consideration of the above-described problems, and is capable of extremely easily communicating and connecting to an eccentric tube, and can surely maintain a horizontal level. It is intended to provide.

[0006]

SUMMARY OF THE INVENTION In order to achieve the above-mentioned object, the present invention relates to a connecting part between an eccentric pipe for supplying hot water or hot water to a hot-water mixing tap and a primary inlet pipe of the hot-water mixing tap. Can be inserted into the other tube, a seal member is formed on the outer periphery near the end of one tube, and a rotation stopping mechanism and a flange are formed on the outer periphery of the tube on the middle side from the seal member. Forming a flange that abuts the rotation stop mechanism and the flange on the part,
A locking member for holding the rotation stopper mechanisms and the flanges in contact with each other is attached.

[0007] Therefore, the mounting operation of the hot and cold water mixing tap of the present invention is completed only by inserting one pipe into the other pipe and keeping the flanges in contact with each other, and locking these flanges with the locking tool. And no tools are required. That is, the operation of attaching the hot water mixer tap is simplified, and a more useful hot water mixer tap and eccentric tube can be provided. In addition, since it is not necessary to use a cap nut with a complicated structure and a high cost,
Parts cost can be reduced.

When each of the rotation stopping mechanisms is formed at a contact portion between the flanges, a seal member provided near an end of one of the tubes is provided with a sealing member formed at an end of the other tube. Damage can be prevented by the mechanism.

Further, at the connection between the eccentric pipe for supplying hot water or hot water to the hot / water mixer tap and the primary inlet pipe of the hot / water mixer tap, one pipe can be inserted into the other pipe, and the end of one pipe can be inserted. A seal member is formed on the outer periphery in the vicinity, a circumferential groove and a rotation stop mechanism are formed on the outer periphery of the tube on the inner side from the seal member, and the other tube has a rotation stop mechanism and the circumferential groove engaged with the rotation stop mechanism. An opening is formed at a position corresponding to the above, and the circumferential groove overlaps the position of this opening, and the outer peripheral surface and the surface of the other tube and the fitting piece fitted into the circumferential groove via the opening in a state where the rotation stopping mechanisms are in contact with each other You may attach the locking tool which consists of one surface part. In this case, since the locking member is flush with the outer circumference of the other tube, the body is not caught by the locking member, so that it is safe.

[0010] In addition, at the connection between the eccentric pipe for supplying hot water or water to the hot / water mixer tap and the primary inlet pipe of the hot / water mixer tap, one pipe can be inserted into the other pipe, and one end of one pipe is inserted. A seal member is formed on the outer periphery in the vicinity of the seal member, a rotation stopping mechanism and a flange are formed on the outer periphery of the tube on the inner side of the seal member, and a flange is formed at the end of the other tube so as to contact the flange. A locking member for holding the abutting state of the members may be non-rotatably attached to the other tube, and one end of the locking member may be provided with a projection for engaging with the rotation stopping mechanism.

[0011] Further, by making the rotation stopping mechanism a serration, the rotation stopping mechanism can be simplified. In addition, by providing the rotation stopping mechanism with a high friction resistance portion and a step portion that comes into contact with the high friction resistance portion, the mounting angle with respect to the eccentric tube can be set completely freely, and fine adjustment can be performed.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One example of the present invention will be described with reference to FIGS. In the figure, reference numeral 1 denotes a hot / water mixer tap, which has a hot water inlet 1a, a water inlet 1b, and a hot water outlet 1c. The hot water temperature is 1d
The amount of water discharged is adjusted using the flow control lever 1e. In this example, a temperature-adjustable hot-water mixer tap 1 is shown, but the present invention is not limited to this, and may be a two-valve hot-water mixer tap or a single-lever hot-water mixer tap. Needless to say. Further, in this specification, it is described that hot water is discharged from the water discharge port 1c, but this hot water includes hot water, mixed water, and cold water.

A primary inlet pipe 2 is formed at each of the hot water inlet 1a and the water inlet 1b of the hot water mixer tap 1. On the other hand, an eccentric pipe 3 is screwed and connected to a hot water supply pipe and a water supply pipe (not shown) embedded in the wall, respectively.
The rotational position of each eccentric tube 3 is adjusted so that the interval between the connecting tubes 4 formed at the downstream end matches the interval between the inflow tubes 2. Further, the outer diameter of the connection pipe 4 is formed to be a thickness that can be inserted into the inflow pipe 2.

Therefore, by inserting these connecting pipes 4 into the corresponding inflow pipes 2, the eccentric pipes 3 for supplying hot water and water are communicated with the respective inlets 1a and 1b, and the hot water inlets 1a and 1b are connected. Hot water and cold water are supplied to the water inlet 1b, respectively.

The structure of the connecting portion between the inflow pipe 2 and the connection pipe 4 is shown in FIGS. Although the figure shows the eccentric tube 3 on the hot water side, the eccentric tube 3 on the water side has the same configuration. 2 and 3, the connecting pipe 4 is provided with an O-ring 5 as an example of a sealing member on the outer periphery near the end thereof, and a large-diameter portion 6 is formed upstream of the O-ring 5 and the large-diameter portion is formed. A serration 6a, which is an example of a rotation stopping mechanism, is formed on the outer periphery of the motor 6. And this serration 6
A flange 7 is provided on the outer periphery of the connection pipe 4 located on the upstream side of a.

On the other hand, a large diameter portion 8 for engaging with the serration 6a and a serration 8a are formed on the inner periphery of the upstream end of the inflow pipe 2, and a flange 9 for contacting the flange 7 is formed. ing. That is, since the large diameter portions 6 and 8 are provided on the inner diameter of the inflow pipe 2 and the outer diameter of the connection pipe 4, the O-ring 5 is damaged by the serrations 8 a when the connection pipe 4 is inserted into the inflow pipe 2. There is no.

Reference numeral 10 denotes a locking member formed by bending a stainless plate-like body into a substantially Ω-shape.
Is formed. In other words, the locking tool 10 is fitted so as to straddle the connecting portion between the inflow pipe 2 and the connecting pipe 4 when the serrations 6a and 8a are in contact with each other and the flanges 7 and 9 are in contact with each other. , 9 are inserted and attached so as to sandwich and hold both flanges 7, 9, so that the contact state between the serrations 6 a, 8 a and the flanges 7, 9 can be maintained. When the flanges 7 and 9 are in contact with each other, the serrations 6a and 8a are securely engaged with each other, and the O-ring 5 is in pressure contact with the inner peripheral surface of the inflow pipe 2. In other words, the mixing tap 1 is non-rotatably and watertightly connected to the eccentric tube 3 by the stopper 10.

Accordingly, the connection between the inflow pipe 2 and the connection pipe 4 is completed only by engaging the locking member 10 with the connection pipe 4 inserted into the inflow pipe 2, and it is not necessary to use any tool. It can be easily done without. Further, since the connecting portion between the inflow pipe 2 and the connection pipe 4 is stopped by the engagement of the serrations 6a and 8a, the anti-rotation resistance is extremely strong, and a robust connection is possible. The inconvenience of tilting 1 is eliminated. Further, the inflow pipe 2
The connection between the eccentric pipe 3 and the connecting pipe 4 is performed without using any screwing, so that there is no inconvenience such as the eccentric pipe 3 rotating with respect to the hot or cold water pipe due to the screwing operation.

Further, according to the above-mentioned structure, it is not necessary to use any member which requires relatively high manufacturing cost such as a cap nut and a suspension nut, so that the manufacturing cost can be reduced.

FIG. 4 shows a second example of the present invention.
In this figure, members denoted by the same reference numerals as those in FIGS. 1 to 3 are the same or equivalent members, and thus detailed description thereof will be omitted. In FIG. 4, reference numerals 7a and 9a denote chrysanthemum seats formed radially on contact surfaces of the flanges 7, 9, respectively. These chrysanthemum seats 7a and 9a are provided instead of the serrations 6a and 8a shown in FIGS. It is something that can be done. That is,
When the connecting pipe 4 is inserted into the inflow pipe 2, the O-ring 5 is configured so as not to be damaged by an uneven portion such as the serration 8 a.

FIG. 5 shows a third example of the present invention.
In this figure, members denoted by the same reference numerals as those in FIGS. 1 to 4 are the same or equivalent members. In FIG.
3 differs from the example shown in FIG. 3 in that instead of the flanges 7 and 9 in FIGS. An opening 12 is provided at a position corresponding to the above, and a locking member 13 which can be fitted into the peripheral groove 11 through the opening 12 is provided.

The locking member 13 is formed by bending a stainless plate-like body, and the fitting piece 1 fitted in the circumferential groove 11 is formed.
3a, a surface portion 13b flush with the outer periphery of the connection pipe 4,
And a cut 13c formed in the surface portion 13b. Therefore, in a state where the locking member 13 is engaged with the opening 12, not only the connection pipe 4 is prevented from falling out of the inflow pipe 2, but also the serrations 6a and 8a are maintained in an engaged state. Since the ring 5 is in close contact with the inner circumference of the inflow pipe 2, the hot and cold water mixing tap 1 can be fixed to the eccentric pipe 3 so as not to rotate, and watertightness can be maintained. In addition, when removing the locking member 13, it can be easily removed by inserting a rod-shaped member into the cut 13c and pulling it.

Further, when the locking member 13 is locked, the surface portion 13b is flush with the outer periphery of the inflow pipe 2, so that there is no danger of the body being caught by the locking member 13. In addition, it looks good and is rich in design.

In this embodiment, since the opening 12 is opened upward, the work of attaching the locking member 13 can be easily performed. However, the opening 12 may be provided on the lower side. In this case, the appearance is further improved because the opening 12 is hidden.

FIG. 6 shows a fourth embodiment of the present invention.
In this drawing, members denoted by the same reference numerals as those in FIGS. 1 to 5 are the same or equivalent members. In this example, FIG.
Members denoted by the same reference numerals as in the examples shown in FIGS. In FIG. 6, reference numeral 7b denotes a gear formed on the outer periphery of the flange 7, and reference numeral 14 denotes a locking member made of a stainless plate-like body bent in a substantially U-shape.

A flat portion 14a is provided at one end of the locking member 14.
The locking member 14 is configured to be non-rotatably attached to the inflow pipe 2 by fitting the flat portion 14a to the flat portion 2a formed on the outer periphery of the inflow pipe 2. Have been. The other end of the locking member 14 has a curved portion 14 curved along the outer periphery of the base 4 a of the connection pipe 4.
b, a projection 14c fitted to the gear 7b of the flange 7
Are formed, and an opening 14d is opened between the plane portion 14a and the curved portion 14b.

Therefore, by engaging the locking member 14 so as to straddle the two pipes 2 and 4 in a state where the connecting pipe 4 is inserted into the inflow pipe 2, the opening 14 d allows the two flanges 7 and 9 to be engaged. The contact state can be maintained, the connection pipe 4 can be prevented from falling off and held in the inflow pipe 2, and the gear 7 b can be fitted into the projection 14 c to fix the rotation of the connection pipe 4 with respect to the inflow pipe 2. That is, the connection pipe 4 and the inflow pipe 2 can be non-rotatably inserted and removed and held watertight by a one-touch operation only by fitting the locking member 14.

FIG. 7 shows a fifth example of the present invention.
In this figure, members denoted by the same reference numerals as those in FIGS. 1 to 6 are the same or equivalent members. 7 is different from the example shown in FIG. 5 in that serrations 6a,
Instead of the ring member 8a, an elastic ring member 6b having high frictional resistance is provided on the step portion 6 of the connecting pipe 4 to form a high frictional resistance portion on its surface, and the ring member 6 of the large diameter portion 8 of the inflow pipe 2 is formed.
The point is that a rough surface portion 8b is formed in a portion abutting on b.

The connecting pipe 4 having the above structure is inserted into the inflow pipe 2,
When the locking member 13 is inserted into the opening 12 while the surface of the ring member 6b is pushed to urge the rough surface portion 8b, the fitting piece 13a fits into the circumferential groove 11 and
Of the ring member 6b and the rough surface portion 8b. Therefore, the rotation of the connection pipe 4 with respect to the inflow pipe 2 can be stopped. In the present example, the biasing force of the ring member 6b and the rough surface portion 8b is increased by forming a gentle tapered surface on the rough surface portion 8b.

With the configuration as in this embodiment, the connection angle of the connection pipe 4 with respect to the inflow pipe 2 can be set in a stepless manner, and the level of the hot and cold water mixing tap 1 can be maintained more accurately. In this embodiment, the elastic ring member 6b having high frictional resistance and the large-diameter portion 8 (step portion) are provided with the rough surface portion 8b. However, the present invention is not limited to this. A similar effect can be obtained with a configuration in which a portion and a step contacting the high friction resistance portion are provided.

In each of the above-described examples, the connecting pipe 4 on the eccentric pipe 3 side is configured to be inserted into the inflow pipe 2 of the hot and cold water mixing tap 1. However, the present invention is not limited to this. Needless to say, the same effect can be obtained even if the pipe of the hot and cold water mixing tap 1 can be inserted into the pipe on the pipe 3 side.

Further, as an example of the rotation stopping mechanism, a serration, a chrysanthemum seat, a high friction resistance member and a step are illustrated.
In addition, it is also possible to make a change such as forming a polygonal engagement portion on both connected tubes. Further, the sealing member is not limited to the O-ring, and a packing or a sealing tape may be used.

[0033]

According to the present invention, the operation of installing the hot water mixer tap using the present invention is as follows. One pipe is inserted into the other pipe, and the flanges are brought into contact with each other. And no tools are required. That is, it is possible to simplify the mounting operation of the hot and cold water mixing tap, and to provide a more useful hot and cold water mixing tap and an eccentric tube. In addition, since it is not necessary to use a cap nut having a complicated structure and a high cost, parts costs can be reduced. When each of the rotation stopping mechanisms is formed at the contact portion between the flanges, the seal member provided near the end of one tube is damaged by the rotation stopping mechanism formed at the end of the other tube. Can be prevented.

In place of the flange, a seal member is formed on the outer periphery near one end of one tube, and a circumferential groove and a rotation stopping mechanism are formed on the outer periphery of the tube on the inner side of the seal member.
An opening is formed in the other tube at a position corresponding to the rotation stopping mechanism and the circumferential groove that engages with the rotation stopping mechanism, and the opening is formed in a state where the circumferential groove overlaps the position of the opening and the rotation stopping mechanisms contact each other. When a locking tool consisting of a fitting piece fitted into the circumferential groove and a surface portion flush with the outer circumference of the other pipe is attached, the locking tool is flush with the outer circumference of the other pipe. Therefore, it is safe because the body does not get caught on the locking device.

The serration of the anti-rotation mechanism can be used to simplify the anti-rotation mechanism. The anti-rotation mechanism may be a high friction resistance portion and a step that abuts the high friction resistance portion. Thereby, the mounting angle with respect to the eccentric tube can be set completely freely and fine adjustment can be performed.

[Brief description of the drawings]

FIG. 1 is an overall view for explaining attachment of a hot and cold water mixing tap of the present invention.

FIG. 2 is a side view showing a partially cutaway mounting structure of the hot and cold water mixing tap.

FIG. 3 is an exploded perspective view of the mounting structure of the hot and cold water mixing tap.

FIG. 4 is an exploded perspective view showing a second example of the mounting structure of the hot and cold water mixing tap according to the present invention.

FIG. 5 is an exploded perspective view showing a third example of the mounting structure of the hot and cold water mixing tap according to the present invention.

FIG. 6 is an exploded perspective view showing a fourth example of the mounting structure of the hot and cold water mixing tap according to the present invention.

FIG. 7 is an exploded perspective view showing a fifth example of the mounting structure of the hot and cold water mixing tap of the present invention.

FIG. 8 is an overall view for explaining attachment of a conventional hot and cold water mixing tap.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Hot water mixing tap, 2 ... The other pipe, 3 ... Eccentric pipe, 4 ... One pipe, 5 ... Seal member, 6a, 8a, 7a, 9a, 7
b, 14c, 6b, 8b: rotation stop mechanism, 7, 9, flange, 10, 13, 14: locking tool, 11: circumferential groove, 12 ...
Opening, 13a: fitting piece, 13b: surface portion.

Claims (6)

[Claims] At a connection between an eccentric pipe for supplying hot water or water to a hot / water mixer tap and a primary inlet pipe of the hot / water mixer tap, one pipe can be inserted into the other pipe, and an end of one pipe is provided. Forming a seal member on the outer periphery in the vicinity, forming a rotation stop mechanism and a flange on the outer periphery of the tube on the inner side of the seal member, and engaging the rotation stop mechanism on the end of the other tube with the rotation stop mechanism; Form a flange that abuts the flange,
A mounting structure for a hot and cold water mixing tap, wherein a locking member for holding a state of contact between the rotation stopping mechanisms and between the flanges is mounted. 2. The hot water mixer tap mounting structure according to claim 1, wherein each of the rotation stopping mechanisms is formed at a contact portion between the flanges. 3. A connecting portion between an eccentric tube for supplying hot water or water to a hot / water mixer tap and a primary inlet pipe of the hot / water mixer tap, one of the pipes being insertable into the other pipe, and an end of one of the pipes. A seal member is formed on the outer periphery in the vicinity, a circumferential groove and a rotation stop mechanism are formed on the outer periphery of the tube on the inner side from the seal member, and the other tube has a rotation stop mechanism and the circumferential groove engaged with the rotation stop mechanism. An opening is formed at a position corresponding to the above, the circumferential groove overlaps the position of this opening, and the outer circumferential surface of the other piece and the fitting piece that fits into the circumferential groove via the opening in a state where the rotation stopping mechanisms are in contact with each other A mounting structure for a hot and cold water mixing tap, wherein a locking tool comprising a single surface portion is mounted. 4. A connecting part between an eccentric pipe for supplying hot water or water to a hot-water mixing tap and a primary inlet pipe of the hot-water mixing tap, one of the pipes being insertable into the other pipe, and an end of one of the pipes. Forming a seal member on the outer periphery in the vicinity and forming a rotation stopping mechanism and a flange on the outer periphery of the pipe on the middle side from the seal member,
A flange is formed at the end of the other tube so as to abut against the flange, and a locking member for holding the abutting state of these flanges is non-rotatably attached to the other tube. A mounting structure for a hot and cold water mixing tap, wherein a projection for engaging with a rotation stopping mechanism is provided. 5. The mounting structure for a water and water mixing tap according to claim 1, wherein said rotation stopping mechanism is a serration. 6. The anti-rotation mechanism comprises a high friction resistance portion and a step abutting the high friction resistance portion.
5. A mounting structure for a hot and cold water mixing tap according to any one of 4.