JP5587669B2 - Mounting device for flow regulator - Google Patents

Description

The present invention relates to a mounting device for a flow rate adjusting body disposed in a liquid flow path.
More specifically, the present invention relates to an apparatus for attaching a flow rate adjusting body so that a flow rate adjusting body arranged in a water pipe is not easily removed.
More specifically, the present invention relates to an apparatus for attaching a flow rate adjusting body, in which the flow rate adjusting body disposed at the end of the water pipe is not easily removed and the durability of the rotatable discharge pipe can be increased.
The “liquid” used in this specification is a general term for seasonings such as water, seawater, juice, or soy sauce, or oil.
The “special tool” means a tool other than a commercially available tool. In other words, it refers to a tool made based on a specially determined specification.
Therefore, the “special tool locking portion” refers to a tool locking portion that cannot lock a commercially available tool and can only lock a tool made based on a specially determined specification. Therefore, when having a special tool locking part, a member cannot be attached and detached using a commercially available tool. For example, in the case of a nut, it cannot be rotated unless it is a special spanner set in a special specification. .
Furthermore, the “base pipe provided in a fixed state” includes a case where the base pipe is not completely fixed, and the base pipe cannot be rotated around the axis even if the base pipe is flexible. .

  As a first conventional technique, the external thread portion at the tip of the faucet, which is rotatably attached to the base pipe through a resin ring as a friction contact member, has one end and the other end surface, and is screwed into the external thread portion at the front end of the faucet. An inner cylinder that can be joined, a flow rate adjusting body disposed in the inner cylinder, an outer cylinder that surrounds the inner cylinder and is rotatable with respect to the inner cylinder, and that the inner cylinder is detached from the outer cylinder. And a retaining structure for preventing the outer cylinder from rotating without hindering the rotation of the outer cylinder, the outer cylinder being unable to apply a rotational force to at least the outer peripheral surface of the inner cylinder, and one of the inner cylinders And / or at least a part of the other end face is formed in a shape that can be exposed, and the exposed part of the one and / or the other end face is formed with a recess or a protrusion, and the inner cylinder However, in a tool having a convex part or a concave part that can be fitted into the concave part or the convex part. Therefore, there is known a mounting device for a flow rate adjusting body characterized in that an external force in the rotational direction can be applied from the open end (see, for example, Patent Document 1).

As a second prior art, a flow adjusting body mounting apparatus shown in FIG. 10 is known.
In general, the tubular faucet 12 as the discharge pipe 10 is inserted into the mounting hole 18 at one end of the cylindrical flow rate adjusting body holding body 16 with the sealing body (U ring) 14 fitted on the outer periphery of the base end, By screwing a holding nut 24 having a through-hole 22 through which the faucet 12 passes into a threaded portion 26 on the outer peripheral surface of the flow rate adjusting body holding body 16, the resin ring 32 as the friction contact body 28 held on the outer peripheral surface of the faucet 12 is obtained. By being pressed against the flow rate adjusting body holding body 16, the flow rate adjusting body holding body 16 is rotatably attached to the flow rate adjusting body holding body 16.
A flow rate adjusting body (not shown) is disposed in the flow path in the flow rate adjusting body holding body 16. The base 11 of the U ring 14 and the faucet 12 also functions as the friction contact body 28.
The small diameter part 30 at the other end of the flow rate adjusting body holder 16 is inserted into the outflow hole 36 of the fixedly arranged base pipe 34, and the female thread (inner thread part) 38 at the end is inserted into the male thread part (outside) of the base pipe 34. The flow rate adjusting body holder 16 and the faucet 12 are attached to the base pipe 34 by being screwed into the threaded portion 42.
A U-ring 44 is fitted on the small diameter portion 30 to prevent water leakage.
On the outer peripheral surface of the flow rate adjusting body holding body 16, a locking portion 46 that can lock a special tool is formed, and the flow adjusting body holding body 16 can be tightened and loosened with respect to the base pipe 34 only by the special tool. This prevents the flow regulator from being stolen.
As the flow rate adjusting body, for example, a constant flow valve disclosed in Japanese Patent Publication No. 51-023059 is used.
Accordingly, the faucet 12 is mounted so as to be rotatable with respect to the base pipe 34 and the flow rate adjusting body holding body 16 is not easily removed (see, for example, Non-Patent Document 1).

Utility Model Registration No. 3125287 (FIGS. 1-14, paragraphs 0016-0026)

[online], March 1, 2010, Kakudai Co., Ltd. [Search May 15, 2010], Internet (URL: //www.kakudai.ne.jp/try/kitchen/004_0_pipe.html)

In the first prior art, the flow rate adjusting body holding body is attached to the tip of a faucet that is a discharge pipe provided so as to be rotatable (including rotation within 360 degrees).
The base portion of the faucet employs a friction contact support structure using a resin ring as a friction contact body as described above.
On the other hand, the faucet has a length of 200 to 300 mm, and the flow rate adjusting body holder attached to the tip is manufactured of a metal such as stainless steel so as not to be easily removed or broken and corroded, and has a predetermined weight. Have.
For this reason, since the friction contact body which is a support member of the faucet base portion is slidably contacted with the base pipe in a state where a pressure higher than that of normal use is applied, the friction contact body tends to be worn and durability (life) may be reduced.
Moreover, when the faucet which does not have the thread part for attaching a flow volume adjustment body holding body to the faucet front-end | tip outer peripheral surface is used, there exists a problem that it must replace | exchange for the faucet which has the said thread part.

The second conventional technique attaches the flow rate adjusting body holding body 16 holding the flow rate adjusting body to the base pipe 34, and allows the base 11 of the faucet 12 to rotate to the flow rate adjusting body holding body 16 via the friction contact body 28. Therefore, as in the first prior art, the problem of durability of the frictional contact body 28 and the problem of replacing the faucet 12 are solved.
However, there is a problem that the flow rate adjusting body holder 16 can be easily removed by repeated rotation of the faucet 12 in normal use.
To describe this problem in detail, in the second prior art, when the faucet 12 is rotated, the flow rate adjusting body holding body 16 is passed through the resin ring 32 as the friction contact body 28, the U ring 14 and the base 11 of the faucet 12. Rotational torque is transmitted to. Naturally, rotational torque in the direction in which the flow rate adjusting body holder 16 is loosened with respect to the base pipe 34 also acts.
When the rotational torque in the loosening direction is applied thousands of times due to the rotation of the faucet 12 in daily life, the flow rate adjusting body holder 16 is gradually rotated slightly in the loosening direction, and the flow rate adjustment with the external threaded portion 42 of the base pipe 34 The fastening force between the body holding body 16 and the inner thread portion 38 gradually decreases, and the flow rate adjusting body holding body 16 can finally be easily rotated by hand.
Even when the friction contact body 32 is not used, the rotational torque in the loosening direction acts tens of thousands of times due to frictional contact with the U ring 14, the base 11 of the faucet 12, and the inner surface of the flow rate adjusting body holding body 16. In this case, the flow rate adjusting body holding body 16 can be easily rotated by hand.
Thereby, after installation, there is a possibility that the flow rate adjusting body may be taken away.
In particular, when the flow control body holder 16 is attached to a water supply facility of a public facility such as a beverage tap in a park or a shower in a public pool, there is a risk that the flow control body holder 16 will be taken away without permission. There is a problem of becoming higher.

A first object of the present invention is to provide an apparatus for attaching a flow rate adjusting body that is not loosened by normal use and in which a flow rate adjusting body holding body cannot be easily removed.
A second object of the present invention is to provide an attachment device for a flow rate adjusting body that does not require replacement of the discharge pipe even when different discharge pipes are attached.
A third object of the present invention is to provide an inexpensive apparatus for attaching a flow rate adjusting body that cannot easily remove the flow rate adjusting body holding body and does not affect the durability of the discharge pipe support. It is.

In order to achieve this object, the present invention is configured as follows.
A flow rate adjusting body holding body is attached by screwing into a threaded portion of an end of a base pipe provided in a fixed state, and a discharge pipe is rotatably attached to the flow rate adjusting body holding body. In the flow rate adjusting body mounting apparatus in which the flow rate adjusting body is disposed in the body, the flow rate adjusting body holding body includes a cylindrical base mounting body and a discharge pipe mounting body, and the discharge pipe mounting body is the base mounting The base mounting body is attached to one end of the base pipe by a rotating pair mounting portion disposed in the flow rate adjusting body holding body, which is a rotational pair even with respect to the body and is not movable in the axial direction. A screw part that can be screwed into the part, a special tool locking part for locking the special tool on the outer peripheral surface, and the discharge pipe mounting body is a special tool for locking the special tool on the outer peripheral surface A locking portion and a screw portion for holding the discharge tube are formed. Rukoto a mounting device of the flow rate adjusting body, characterized in.

  The invention of claim 2 is attached to the threaded portion of the end of the base pipe provided in a fixed state and attached to the flow rate adjusting body holding body, and the discharge pipe can be rotated relative to the flow rate adjusting body holding body. A flow rate adjusting body mounting apparatus in which the flow rate adjusting body is disposed in the flow rate adjusting body holding body, wherein the flow rate adjusting body holding body includes a cylindrical base mounting body and a discharge pipe mounting body, and the base mounting The body has a threaded portion that can be screwed into the threaded portion of the base pipe at one end, a special tool locking portion for locking a special tool on the outer peripheral surface, and the discharge pipe mounting body can be freely rotated at the other end. And a first mounting portion that is held immovably in the axial direction, and the discharge tube mounting body has a mounting hole for rotatably holding the base portion of the discharge tube at one end and a special outer peripheral surface. A special tool locking portion for locking the tool, a screw portion for holding the discharge tube, and A flow rate adjusting body having a second mounting portion attached to the first mounting portion so as to be rotatable and immovable in the axial direction at the end portion, and having a holding portion for the flow rate adjusting body. This is a mounting device.

  According to the invention of claim 3, the flow rate adjusting body holding body is attached by screwing to the threaded portion of the outer peripheral surface of the end portion of the base pipe provided in a fixed state, and the friction contact body is interposed in the flow rate adjusting body holding body. In the apparatus for attaching a flow rate adjusting body in which the discharge pipe is rotatably attached by a holding nut, and the flow rate adjusting body is disposed in the flow rate adjusting body holding body, the flow rate adjusting body holding body is a cylindrical base mounting body. And a spout tube attachment body, wherein the base attachment body has an inner thread portion that can be screwed into an outer circumferential surface of the base pipe on an inner circumferential surface of one end portion, and a special tool for locking a special tool on the outer circumferential surface. A tool locking portion and a bearing hole for receiving the attachment portion of one end portion of the discharge tube attachment body at the other end portion, and the discharge tube attachment body can freely rotate the base portion of the discharge tube at one end portion. Mounting hole for holding, outer threaded part for screwing the holding nut of the discharge pipe into the outer peripheral surface And a flow rate adjusting body having a shaft portion that is rotatably attached to the bearing hole and immovable in the axial direction at the other end portion, and a holding portion for the flow rate adjusting body is formed. This is a mounting device.

  The invention of claim 4 attaches the flow rate adjusting body holding body by screwing into the threaded portion of the inner peripheral surface of the end portion of the base pipe provided in a fixed state, and rotates the discharge pipe relative to the flow rate adjusting body holding body. In the mounting device of the flow rate adjusting body in which the flow rate adjusting body is disposed in the flow rate adjusting body holding body, the flow rate adjusting body holding body includes a cylindrical base mounting body and a discharge pipe mounting body, The base mounting body has an outer threaded portion that can be screwed into a threaded portion of the inner peripheral surface of the base pipe on an outer peripheral surface of one end portion, a special tool locking portion for locking a special tool on the outer peripheral surface, and the other end portion It has a bearing hole that receives the shaft portion at one end of the discharge tube mounting body, and the discharge tube mounting body has a mounting hole for holding the base of the discharge tube at one end portion, and a discharge tube on the inner peripheral surface. An inner thread part for screwing a holding body to hold the shaft, and the other end part is rotatable in the bearing hole and axially The flow rate adjusting body mounting device is characterized in that it has a shaft portion that is mounted so as not to move in the direction, and a holding portion for the flow rate adjusting body is formed.

  The invention of claim 5 is characterized in that, in the inventions of claims 1 to 3, the discharge tube is a faucet.

  The invention of claim 6 is characterized in that, in the invention of claim 4, the discharge tube is a shower head.

According to the invention of claim 1, the discharge pipe is rotatably attached to the base pipe via the flow rate adjusting body holder.
The flow rate adjusting body holding body is composed of a base mounting body and a discharge pipe mounting body, and the base mounting body and the liquid discharge are in a relation that they can be rotated by the rotating pair mounting portion disposed in the flow rate adjusting body holding body and cannot move in the axial direction. Tube fittings are combined.
The base mounting body and the discharge pipe mounting body are connected to the base pipe by a special tool in which the thread portion at the end is screwed into the thread portion at the end of the base piping and is locked to the special tool locking portion on the outer peripheral surface. It is firmly fixed (substantially impossible to rotate).
In other words, the base attachment body cannot be loosened with respect to the base pipe unless a special tool is used, and as a result cannot be removed from the base pipe.
The discharge tube mounting body and the base mounting body can be relatively rotated by the rotating pair mounting section, but are mounted so as not to move in the axial direction.
The discharge tube is discharged by engaging the special tool with the special tool locking portion formed on the outer peripheral surface of the discharge tube mounting body and screwing the discharge tube holding body into the discharge tube holding body. It is firmly attached to the liquid pipe attachment.
When the discharge tube is rotated, rotational torque is transmitted to the discharge tube attachment body, and the discharge tube attachment body rotates relative to the base attachment body.
Since the spout tube attachment body is in a rotational (rolling) pairing relationship with the base attachment body, it is not in a high friction contact relationship.
Due to the rotation, a rotational torque is transmitted from the discharge tube attachment body to the base attachment body according to the frictional force therebetween.
However, since the rotational torque transmitted by the rotating pair is much smaller than the fastening torque due to screwing between the base mounting body and the base pipe, the base mounting body does not loosen with respect to the base pipe.
Moreover, since it is similarly small also with respect to the fastening torque by the screwing between the holding | maintenance body of a discharge pipe and a discharge pipe attachment body, it does not loosen similarly.
Further, the rotating pair mounting portion is disposed in the flow rate adjusting body holding body and cannot be accessed from the outside.
In other words, there is an advantage that the flow rate adjusting body is not taken away.
Further, since the flow rate adjusting body holder is attached to the base pipe, its weight does not adversely affect the discharge pipe.
Further, since the flow rate adjusting body holding body is constituted by the base mounting body and the discharge pipe mounting body, there is an advantage that it can be manufactured at low cost.

According to the invention of claim 2, the discharge pipe is rotatably attached to the base pipe through the flow rate adjusting body holder.
The flow rate adjusting body holding body is composed of a base mounting body and a discharge pipe mounting body, and the base mounting body has a screw thread at the end thereof by the special tool locked to the special tool locking section on the outer peripheral surface thereof. And is firmly fixed to the base pipe.
In other words, the base attachment body cannot be removed from the base pipe unless a special tool is used.
The second attachment portion of the discharge tube attachment body can be rotated by the first attachment portion of the base attachment body, but is attached so as not to move in the axial direction.
The discharge tube is discharged by engaging the special tool with the special tool locking portion formed on the outer peripheral surface of the discharge tube mounting body and screwing the discharge tube holding body into the discharge tube holding body. It is firmly attached to the liquid pipe attachment.
When the discharge tube is rotated, rotational torque is transmitted to the discharge tube attachment body, and the discharge tube attachment body rotates relative to the base attachment body.
The second attachment portion of the discharge tube attachment body is in a rolling pair relationship with the first attachment portion of the base attachment body, but is not in a high friction contact relationship.
Accordingly, the rotational torque is transmitted from the discharge tube attachment body to the base attachment body according to the frictional force therebetween.
However, since the transmitted rotational torque is extremely smaller than the fastening torque caused by screwing between the base mounting body and the base pipe, the base mounting body does not loosen with respect to the base pipe.
Similarly, since the fastening torque between the discharge pipe attachment body and the discharge pipe holding body is extremely smaller than the tightening torque, the holding body does not loosen with respect to the discharge pipe attachment body.In other words, the flow adjustment body is removed. Has the advantage of never being.
Further, since the flow rate adjusting body holder is attached to the base pipe, its weight does not adversely affect the discharge pipe.
Further, since the flow rate adjusting body holding body is constituted by the base mounting body and the discharge pipe mounting body, there is an advantage that it can be manufactured at low cost.

According to the invention of claim 3, the flow rate adjusting body holding body is composed of a base mounting body and a discharge pipe mounting body, and the base mounting body is attached to the end of the special tool locked to the special tool locking section. The inner thread portion is screwed into the outer thread portion at the end of the base pipe, and is firmly screwed into the base pipe.
In other words, the base attachment body cannot be removed from the base pipe unless a special tool is used.
The discharge pipe attachment body has a shaft portion inserted into a bearing hole of the base attachment body and is rotatable, but is attached in a non-slidable manner in the axial direction.
And the discharge tube is in a state where the inner screw portion of the holding nut is screwed into the outer thread portion of the discharge tube mounting body, and the special tool is locked to the special tool locking portion on the outer peripheral surface of the discharge tube mounting body. , the retaining nut is tightened, it is screwed into the firm.
In other words, the discharge tube cannot be removed from the discharge tube mounting body unless the special tool is locked to the special tool locking portion of the discharge tube mounting body.
When the discharge pipe is rotated, rotational torque is transmitted to the discharge pipe mounting body via the friction contact body, and the shaft portion of the discharge pipe mounting body rotates with respect to the bearing hole of the base mounting body.
Since the spout tube mounting body is in a rolling pair relationship with the base mounting body, the frictional force is small.
Accordingly, the rotational torque is transmitted from the discharge tube attachment body to the base attachment body according to the frictional force therebetween.
However, since the transmitted rotational torque is extremely smaller than the fastening torque caused by screwing between the base mounting body and the base pipe, the base mounting body does not loosen with respect to the base pipe. Further, since the fastening torque by screwing between the discharge tube attachment body and the discharge tube holding body is extremely small, the discharge nut is not loosened with respect to the discharge tube attachment body.
In other words, there is an advantage that the flow rate adjusting body is not taken away.

According to the invention of claim 4, the flow rate adjusting body holding body is composed of a base mounting body and a discharge pipe mounting body, and the base mounting body is attached to the end of the special tool locked to the special tool locking section. The outer threaded portion is screwed into the inner threaded portion at the end of the base pipe and is firmly screwed into the base pipe.
In other words, the base attachment body cannot be removed from the base pipe unless a special tool is used.
The discharge pipe attachment body is attached to the base attachment body so that its shaft portion can rotate relative to the bearing hole, but cannot move in the axial direction.
The discharge pipe is screwed with the external thread part into the internal thread part of the discharge pipe mounting body, and the special tool is locked to the special tool locking part on the outer peripheral surface of the discharge pipe mounting body. The external thread is tightened and firmly screwed together.
Also, the external thread part of the base mounting body is screwed into the internal thread part of the base pipe, the special tool is locked to the special tool locking part on the outer peripheral surface of the base mounting body, and the external thread part of the base mounting body is the base part. It is firmly screwed into the inner threaded portion of the pipe.
In other words, the base attachment body cannot be removed from the base pipe unless the special tool is locked to the special tool locking portion on the outer peripheral surface thereof.
Furthermore, the discharge tube cannot be removed from the discharge tube mounting body unless the special tool is locked to the special tool locking portion of the discharge tube mounting body.
When the discharge tube is rotated, rotational torque is transmitted to the discharge tube attachment body, and the discharge tube attachment body rotates relative to the base attachment body.
The spout tube attachment body has a rolling pair relationship with the base attachment body, but the frictional force is extremely small.
Accordingly, the rotational torque is transmitted from the discharge tube attachment body to the base attachment body according to the frictional force therebetween.
However, since the transmitted rotational torque is extremely smaller than the fastening torque between the base mounting body and the base piping and between the holding body of the discharge pipe and the discharge pipe mounting body, the base mounting body is Will not loosen.
In other words, there is an advantage that the flow rate adjusting body is not taken away.

  According to the invention of claim 5, since the discharge pipe is a faucet, for example, even if the flow adjustment body is attached to a water tap of a park or the like that cannot be managed at all times, the flow adjustment body can be taken away. It has no advantage.

  According to the invention of claim 6, since the discharge pipe is a shower head, for example, even when a flow rate adjusting body is attached to a shower head in a shower room installed in a public facility, Has the advantage of not being taken away.

FIG. 1 is a front view of Embodiment 1 of a mounting device for a flow rate adjusting body according to the present invention. 2 is a cross-sectional view taken along line AA in FIG. FIG. 3 is a front view of the base mounting body of the first embodiment of the flow rate adjusting body mounting apparatus according to the present invention. FIG. 4 is a state diagram in which the special tool is locked in the cross-sectional view taken along the line BB in FIG. FIG. 5 is a front view of the discharge pipe attachment body according to the first embodiment of the flow rate adjustment body attachment apparatus according to the present invention. 6 is a cross-sectional view taken along the line CC in FIG. FIG. 7 is a front view of the locking ring according to the first embodiment of the flow regulating body mounting device according to the present invention. FIG. 8 is a cross-sectional view taken along the axis of the second embodiment of the apparatus for attaching a flow rate adjusting body according to the present invention. 9 is a cross-sectional view taken along the line DD in FIG. FIG. 10 is an exploded perspective view for explaining the second prior art.

  In the best mode of the present invention, a flow rate adjusting body holding body is attached by screwing to a threaded portion of the outer peripheral surface of an end portion of a base pipe provided in a fixed state, and is in frictional contact with the flow rate adjusting body holding body. A faucet is rotatably attached by a holding nut with a body interposed therebetween, and the flow rate adjusting body mounting device in which the flow rate adjusting body is arranged in the flow rate adjusting body holding body, the flow rate adjusting body holding body is attached to a cylindrical base A body and a faucet mounting body, wherein the base mounting body is an inner thread portion that can be screwed into a thread portion of the outer peripheral surface of the base pipe on an inner peripheral surface of one end portion, and a special tool for locking a special tool on the outer peripheral surface The locking part and the other end part have a bearing hole for receiving the shaft part of one end part of the faucet attachment body rotatably and immovably in the axial direction, and the faucet attachment body rotates the base part of the faucet at one end part. Mounting holes for holding freely, the holding nuts on the outer peripheral surface An outer threaded portion for screwing the shaft, and a shaft portion that is rotatably attached to the bearing hole and immovable in the axial direction at the other end, and a holding portion for the flow rate adjusting body is formed. This is a flow rate adjusting body mounting device.

Example 1 is an example in which the present invention is applied to an attachment device for attaching a flow rate adjusting body holding body 100 to a faucet 12 of a faucet serving as a discharge pipe 10.
The same parts as those of the conventional apparatus are denoted by the same reference numerals, and different configurations will be described.
The flow rate adjusting body holding body 100 has a function of holding the discharge pipe 10 so as to be rotatable and immovable in the axial direction with respect to the base pipe 34 and holding the flow rate adjusting body so that it cannot be easily removed.
A flow rate adjusting body holding body 100 according to the present invention includes a base mounting body 102 and a discharge pipe mounting body 104 as shown in FIG.

First, the base mounting body 102 will be described with reference to FIGS.
The base mounting body 102 has a function of firmly fixing the flow rate adjusting body holding body 100 to the base piping 34 and holding the discharge pipe mounting body 104, in other words, the discharge pipe 10 in a rotatable and non-slidable manner.
The base mounting body 102 has a substantially cylindrical shape centered on the axis SL1 and has a predetermined length L1, and a first special outer peripheral surface 106 having a predetermined diameter, a through hole 108 having a predetermined diameter, and a part of the outer peripheral surface 106. The tool locking portion 112, an inner thread portion 116 that is a thread portion 114 at one end portion of the through hole 108, and a bearing that is a first attachment portion 119 that constitutes a rotating pair attachment portion 118 of the discharge tube attachment body 104 at the other end portion. A hole 120 is formed.

First, the first special tool locking portion 112 will be described.
The first special tool locking portion 112 has a function of rotating the base attachment body 102 by locking the special tool 124. “Rotation” is a concept including relative rotation and rotation within one rotation.
The first special tool locking portion 112 is a tool locking portion that cannot lock a generally sold tool.
In the first embodiment, the opposing portions of the outer peripheral surface 106 of the cylindrical base mounting body 102 are cut with a predetermined first width W1, and a pair of parallel first special tool locking surfaces 122A and a second special tool The first special tool locking portion 112 is configured by the locking surface 112B .
Specifically, the first distance D1 between the first special tool locking surface 112A and the second special tool locking surface 112B is a special dimension and cannot be closely engaged with a normal spanner.
Further, the first width W1 of the first special tool locking surface 112A and the second special tool locking surface 112B protrudes beyond the width of a normal monkey wrench and is formed to a width that cannot be engaged.
In other words, the first special tool locking portion 112 is set to a specification that allows only a predetermined type of special tool 124 to be locked.
In the first embodiment, the first special tool locking portion 112 is formed on the large-diameter portion of the outer peripheral surface 106 of the base mounting body 102, but can also be formed on a small-diameter portion that forms a step 142 described later.

Next, the special tool 124 will be described with reference to FIG.
The special tool 124 is Y-shaped, and the inner spacing of the first locking portion 124A and the second locking portion 124B arranged in parallel is slightly larger than the first spacing D1, and the first special tool 124 The engagement portion 112 can be tightly fitted.
Therefore, the base attachment body 102 can be relatively rotated in the predetermined direction by holding the grip portion 124C and rotating it in the predetermined direction.
The first special tool locking portion 112 is not limited to two parallel surfaces for locking the spanner of the above-described embodiment, and has a special-shaped locking hole, for example, a triangular locking hole. Further, it may be configured such that it can be rotated only by a spanner that can engage only with the locking hole. The same applies to the following special tool locking portions.

Next, the through hole 108 will be described.
The through hole 108 has a function of fixing the base mounting body 102 to the base pipe 34 and constituting a rotating pair mounting portion 118.
The through hole 108 is a circular hole formed so as to pass through the base mounting body 102 along the axis SL1, and one end side is a large diameter hole part 126 having a larger diameter than the other end side. The end portion side is formed in the small diameter hole 128.
In other words, the through hole 108 is a stepped hole 130 having a large diameter hole portion 126 on the base pipe 34 side and a small diameter hole portion 128 on the discharge pipe 10 side.
A threaded portion 114 is formed in the large diameter hole portion 126.
One end of a discharge tube mounting body 104, which will be described later, is inserted into the small-diameter hole 128 so as to be freely rotatable.
In other words, the small-diameter hole portion 128 is the first attachment portion 119A that supports the discharge tube attachment body 104 rotatably, that is, the bearing hole 120, and constitutes a part of the rotation pair attachment portion 118.

Next, the screw part 114 will be described.
The threaded portion 114 has a function of screwing and fixing the flow rate adjusting body holding body 100 to the outer threaded portion 42 of the base pipe 34.
The threaded portion 114 is an inner threaded portion 116 having a predetermined number of threads in the first embodiment.

Next, the inner screw portion 116 will be described.
The inner threaded portion 116 is screwed into the outer threaded portion 42 of the base pipe 34 and has a function of firmly fixing the base mounting body 102 to the base pipe 34. In other words, the flow rate adjusting body holding body 100 is formed by screwing the inner screw portion 116 to the outer screw portion 42 of the base pipe 34 and locking the special tool 124 to the first special tool locking portion 112 and tightening. It is fixed firmly.
When fixing the flow rate adjusting body holding body 100 to the base pipe 34, the special tool 124 is locked to the first special tool locking section 112, and the base mounting body 102 is rotated relative to the base pipe 34 with a large force. Therefore, the base attachment body 102 cannot be removed unless the special tool 124 is used.

Next, the rotating pair mounting portion 118 will be described.
The rotating pair mounting portion 118 has a function of maintaining the base mounting body 102 and the discharge tube mounting body 104 in a rotatable and non-movable (slidable) relationship in the axial direction, in other words, rotating the discharge tube 10. In this case, it has a function of not substantially transmitting the rotational torque of the discharge tube mounting body 104 to the base mounting body 102.
The rotating pair mounting portion 118 includes a first mounting portion 119A formed on the base mounting body 102 and a second mounting portion 119B formed on the discharge pipe mounting portion 104.
Accordingly, the first mounting portion 119A can rotate with respect to the second mounting portion 119B, but cannot slide in the axial direction.
In the first embodiment, the first mounting portion 119A is a bearing hole 120, and the second mounting portion 119B is a shaft portion 162 described later.

Next, the bearing hole 120 will be described.
The bearing hole 120 has a function of holding the shaft portion 162 of the discharge pipe attachment body 104 so as to be rotatable with respect to the base attachment body 102.
The bearing hole 120 is formed with a predetermined diameter and a predetermined length, and a ring-shaped engaging portion 134 having a predetermined thickness is disposed around the bearing hole 120.
In other words, a side wall 136 having a circular bearing hole 120 formed in the center is formed on one end surface of the base mounting body 102.

A step 142 is formed to lock the inward flange 138A of the cover ring 138 by reducing the outer peripheral surface of the end of the base attachment 102 on the base pipe 34 side to a small diameter.
As described above, the first special tool locking portion 112 may be formed in the small diameter portion.

Next, the discharge tube attachment body 104 will be described with reference to FIGS. 2, 5, and 6. FIG.
The discharge tube mounting body 104 has a function of supporting the discharge tube 10 so as to be rotatable with respect to the base mounting body 102 and immovable in the axial direction.
In other words, the discharge tube attachment body 104 is supported so as to be rotatable with respect to the base attachment body 102 and not slidable in the axial direction.
The discharge tube attachment body 104 is generally cylindrical, and externally, a second small diameter portion 142, a second large diameter portion 144, and a medium diameter portion 146 are formed in order from the base attachment body 102 side.
When the discharge pipe attachment body 104 is integrated with the base attachment body 102, the flow hole 148 and the flow rate adjustment body are held as holding parts in order from the base attachment body 102 side along the axis SL1. A hole 152 and a discharge tube mounting hole 154 are formed.
Also, the discharge tube mounting hole 154 and the screw part 156 relative to the medium diameter part 146, the second special tool locking part 158 and the holding hole 152 relative to the second large diameter part 144, the second small diameter part A flow hole 148 and a shaft portion 162 are formed opposite to 142.

First, the flow hole 148 will be described.
The flow hole 148 has a function of flowing the supplied liquid from the base pipe 34 to the discharge pipe 10 side.
The flow hole 148 is a circular hole having a predetermined diameter and a predetermined cross section along the axis SL1.

Next, the shaft portion 162 will be described.
The shaft portion 162 is inserted into the bearing hole 120 so as to be rotatable, and has a function of rotatably supporting the discharge pipe attachment body 104 with respect to the base attachment body 102.
The shaft portion 162 is a second attachment portion 119B and is rotatably supported by the first attachment portion 119A.
The rotating pair mounting portion 118 includes a shaft portion 162 in the first embodiment.
The shaft portion 162 has a cylindrical shape with a predetermined diameter, and a locking ring groove 164 and a seal groove 166 are formed on the entire circumference in order from one end portion side, in other words, from the base attachment body 102 side.
For example, a locking ring 172 shown in FIG. 7 is locked in the locking ring groove 164.
The locking ring 172 has a circular ring shape as a whole by a metal having a spring property, and a slit 168 is formed in part, so that the diameter can be increased.
The locking ring 172 is fitted with a large force from the end surface side of the second small-diameter portion 142, thereby expanding the locking ring 172 and pushing it to the position of the locking ring groove 164. When the locking ring 172 is opposed to the locking ring groove 164, the diameter is reduced by the self-restoring force, and the locking ring 172 is fitted into the locking ring groove 164.
Therefore, it is preferable that the locking ring 172 is easily fitted by forming the tip of the second small diameter portion 142 in the taper 165.

An O-ring 174 is fitted into the seal groove 166.
When attaching the discharge tube attachment body 104 to the base attachment body 102, the shaft portion 162 is inserted into the bearing hole 120 with the O-ring 174 fitted in the seal groove 166.
Since the locking ring groove 164 is positioned slightly outside the side wall 136 of the locking portion 134, the locking ring 172 is fitted from the end surface side of the shaft portion 162 and locked to the locking ring groove 164.
Thereby, the discharge tube attachment body 104 is integrated with the base attachment body 102 so as to be rotatable and non-slidable in the axial direction.
That is, when the discharge tube mounting body 104 slides and moves to the discharge tube 10 side, the locking ring 172 cannot be moved because it is locked by the locking portion 134, and slides and moves to the base pipe 34 side. In this case, the end surface 170 of the second large diameter portion 144 is locked by the locking portion 134 and cannot move.
Therefore, the locking ring 172 and the second large diameter portion 144 have a function of restricting the discharge tube mounting body 104 and the base mounting body 102 so that they cannot slide in the axial direction.

The locking ring 172 is located in the through hole 108 of the base attachment body 102.
The base attachment body 102 cannot be removed from the base pipe 34 without using a special tool 124. Furthermore, the discharge tube 10 cannot be removed from the discharge tube mounting body 104 unless a special tool 124 is used as will be described later.
Therefore, since the rotary pair mounting portion 118, in other words, the first mounting portion 119A and the second mounting portion 119B are arranged inside the flow rate adjusting body holder 100, they cannot be accessed from the outside. Therefore, the rotating pair mounting portion 118, in other words, the first mounting portion 119A and the second mounting portion 119B cannot be easily disassembled.
The O-ring 174 located in the seal groove 166 functions to prevent leakage from the gap between the shaft portion 162 and the bearing hole 120.

Next, the holding hole 152 will be described.
The holding hole 152 has a function of holding the flow rate adjusting body 176. Therefore, the holding hole 152 is a holding portion for the flow rate adjusting body 176.
The holding hole 152 is a circular hole having a diameter larger than that of the flow hole 148, which is formed generally opposite to the second large diameter portion 144 in the middle of the discharge pipe attachment body 104.
The holding hole 152 has a diameter slightly larger than the outer diameter of the discharge tube 10, and the base 11 of the faucet 12 as the discharge tube 10 is inserted as will be described later.
Accordingly, a stepped portion 178 is formed at the boundary portion with the flow hole 148.
The flow rate adjusting body 176 is attached to one side of the stepped portion 178 as will be described later.

Next, the flow rate adjusting body 176 will be described.
The flow rate adjusting body 176 has a function of regulating the flow rate of the liquid flowing from the circulation hole 148, and is also referred to as a flow rate adjusting valve or a water saving valve.
The flow rate adjusting body 176 has a two-stage cylindrical shape having a third large-diameter portion 182 and a third small-diameter portion 184, and is molded from resin from the viewpoint of cost, performance, and the like.
The outer diameter of the third large diameter portion 182 is the same as or slightly larger than the diameter of the holding hole 152.
The outer diameter of the third small diameter portion 184 has a diameter slightly smaller than the inner diameter of the discharge tube 10.
When the flow rate adjusting body 176 is attached to the holding hole 152, the third large diameter portion 182 is inserted from the discharge pipe mounting hole 154 with the flow hole 148 side, and one end face of the flow hole 148 and the holding hole 152 is inserted. It is inserted until it is locked to the stepped portion 178 therebetween.
As described above, since the outer diameter of the third large diameter portion 182 is the same as or slightly larger than the diameter of the holding hole 152, the flow rate adjusting body 176 is in close contact with the holding hole 152 at a predetermined contact pressure, and is caused by frictional force. Configured to be difficult to drop off
A ring-shaped gap 186 is formed between the third small diameter portion 184 and the holding hole 152.
The end of the base 11 of the discharge tube 10 is inserted into the gap 186.

Next, the second special tool locking portion 158 will be described with reference to FIG.
Similar to the first special tool locking portion 112, the second special tool locking portion 158 is a tool locking portion that cannot lock a generally sold tool.
In the first embodiment, the opposing portion of the outer peripheral surface 160 of the second large diameter portion 144 of the discharge tube mounting body 104 is cut with a predetermined second width W2, and a pair of parallel third special tool locking surfaces A second special tool locking portion 158 is configured by 186A and the fourth special tool locking surface 186B.
Specifically, the second distance D2 between the third special tool locking surface 186A and the second special tool locking surface 186B is a special dimension and cannot be closely fitted with a normal spanner.
In addition, the width W2 of the third special tool locking surface 186A and the fourth special tool locking surface 186B protrudes beyond the width of a normal monkey wrench and is formed such that it cannot be engaged.
In other words, since the outer peripheral surface 160 with a large diameter exists on both sides of the third special tool locking surface 186A and the fourth special tool locking surface 186B, the second special tool locking portion 158 has a special tool of a predetermined form. Only the shape that can be locked is set.
The second distance D2 and the second width W2 of the second special tool locking portion 158 are preferably formed to be the same as the first special tool locking portion 112. This is because the special tool 124 can be shared.
However, in order to further improve the anti-theft property, it can be set to a different specification.

Next, the screw part 156 will be described.
The screw portion 156 has a function of screwing a holding nut 24 for fixing the discharge tube 10 to the discharge tube attachment body 104.
The screw portion 156 is an external screw portion 188 formed on the outer peripheral surface of the medium diameter portion 146.

Next, the discharge tube mounting hole 154 will be described.
The discharge pipe mounting hole 154 has a function of allowing the discharge pipe 10 to be rotatably mounted via the friction contact body 28 through which the base 11 of the discharge pipe 10 is inserted.
The discharge tube attachment hole 154 is a circular hole having a larger diameter than the holding hole 152 and is formed at one end of the discharge tube attachment body 104.
The base 11 is inserted into the discharge pipe mounting hole 154 in a state where the U ring 14 is fitted to the base of the discharge pipe 10.
The inner threaded portion 20 of the holding nut 24 is screwed into the outer threaded portion 188 of the threaded portion 156 with the meat portion of the base portion 11 of the discharge pipe 10 being inserted into the gap 186.
As a result, the flange portion 24F of the holding nut 24 pushes the discharge pipe 10 to the back via the resin ring 32, and the tip of the base portion 11 pushes the third large diameter portion 182 of the flow rate adjusting body 176, and the flow rate adjusting body 176 The end face of is pressed against the step 178 and fixed.
The holding nut 24 is screwed in by locking the special tool 124 to the second special tool locking portion 158 and locking a commercially available tool to the holding nut 24.
As a result, the resin ring 32 is deformed between the flange 24F and the end face of the discharge pipe attachment body 104, and the holding nut 24 cannot be removed without the special tool 124.
The U ring 14 prevents water leakage from between the discharge tube 10 and the discharge tube attachment body 104.

Next, the cover ring 138 will be described.
The cover ring 138 has a function of covering the first special tool locking portion 112 and the second special tool locking portion 158 so as not to be seen from the outside.
The cover ring 138 has a cylindrical shape, and its inner diameter is slightly larger than the outer diameters of the base attachment body 102 and the second large diameter portion 144.
The cover ring 138 has an inward flange 138 </ b> A at an end thereof locked to the stepped portion 142 of the base mounting body 102.
Therefore, the cover ring 138 is covered with and covered with the second large diameter portion 144 of the base mounting body 102 and the discharge pipe mounting body 104, and is slidable in the extending direction of the axis SL1 along them.
In order to enable the special tool 124 to be locked to the first special tool locking portion 112 on the peripheral wall of the cover ring 138, the first opening 192A and the second opening 192B that are the same as or slightly larger than the first tool locking portion 112 are relatively It is formed in the position to do.
When the flow rate adjusting body holding body 100 is attached to the base pipe 34, the cover ring 138 can be slid as described above but cannot be removed.
When the inward flange 138A of the cover ring 138 is locked to the stepped portion 140, the first special tool locking portion 112 and the second special tool locking portion 158 are covered by the continuous outer peripheral surface of the cover ring 138. This is because by making the first special tool locking portion 112 and the second special tool locking portion 158 invisible, a psychological removal suppressing effect on the flow rate adjusting body holding body 100 can be expected.
However, the cover ring 138 is not an essential configuration.

The flow rate adjusting body holder 100 is traded in a state in which the base mounting body 102 and the discharge pipe mounting body 104 are combined.
That is, the state in which the first mounting portion 119A and the second mounting portion 119B are combined so as to be rotatable and immovable in the axial direction, in other words, the shaft portion 162 is inserted into the bearing hole 120 and the locking ring 172 is engaged. The liquid discharge tube mounting body 104 and the base mounting body 102 are engaged with the stop ring groove 164 and are combined so as to be rotatable and non-slidable in the axial direction.
The special tool 124 is traded together with the flow rate adjusting body holder 100 or individually.
The flow regulator 176 is also traded with the flow regulator holder 100 or separately.

Next, how to attach the flow rate adjusting body holder 100 to the base pipe 34 will be described.
When attaching the flow rate adjusting body holding body 100 including the cover ring 138 to the base pipe 34, an elastic ring-shaped spacer 194 is dropped into the large-diameter portion 126 of the through hole 108 and fitted to the tip of the shaft portion 162. .
The flow rate adjusting body 176 is held in the holding hole 152 in advance.
Next, the inner thread portion 116 is screwed into the outer thread portion 42 of the base pipe 34.
When screwing, slide the cover ring 138 so that the first opening 192A and the second opening 192B are opposed to the first special tool locking surface 112A and the second special tool locking surface 112B, and then the first engagement of the special tool 124. The locking portion 124A and the second locking portion 124B are locked to the locking surfaces and tightened firmly.
As a result, the end faces of the locking ring 172, the spacer 194, and the base pipe 34 come into contact with each other with a large contact pressure, and cannot be easily removed unless the special tool 124 is used.

Next, the base 11 of the discharge tube 10 is inserted into the discharge tube mounting hole 154 of the discharge tube mounting body 104, the cover ring 138 is slid to expose the second special tool locking portion 158, and then The special tool 124 is engaged with the second special tool locking portion 158 and the inner screw portion 20 of the holding nut 24 is screwed into the outer screw portion 188, and the commercially available tool is locked to the holding nut 24 and firmly tightened.
As a result, the holding nut 24, the resin ring 32, and one end of the liquid discharge pipe attachment body 104 come into contact with each other with a large contact pressure, and cannot be easily removed unless the special tool 124 is used.
As a result, the flow rate adjusting body holder 100 is attached to the base pipe 34 in a state where it cannot be removed unless the special tool 124 is used.

When the discharge pipe 10 is rotated, rotational torque acts on the discharge pipe mounting body 104 via the friction contact body 28.
However, since the frictional force between the shaft portion 162 and the bearing hole 120 has a bearing structure of a rotating pair, the frictional force between the discharge pipe 10, the friction contact body 28, and the discharge pipe mounting body 104 On the other hand, it is extremely small and practically negligible.
Therefore, the shaft portion 162 of the discharge tube mounting body 104 rotates with respect to the bearing hole 120 of the base mounting body 102.
At this time, the rotational torque is transmitted to the base mounting body 102 by frictional contact between the shaft portion 162 and the bearing hole 120, but the stationary torque due to the frictional force due to the screw fastening between the base mounting body 102 and the base pipe 34. Since it is extremely small with respect to the force, the rotational torque can be substantially ignored.
Therefore, the rotation of the discharge pipe 10 does not loosen the base attachment body 102 with respect to the base pipe 34 and the holding nut 24 with respect to the discharge pipe attachment body 104.
Further,吐液tube mount 104 by the end face 170 of the locking ring 172 and the second large-diameter portion 144, in other words, can not slide axially relative to the base mounting member 102 by the locking portion 134 of the base mount 102 .
Since the locking ring 172 is located inside the base mounting body 102, it cannot be accessed from the outside.
In other words, the discharge tube attachment body 104 cannot be easily separated from the base attachment body 102.
As described above, there is an advantage that the flow rate adjusting body 176 is not illegally removed.
Contrary to the first embodiment, the base attachment body 102 can be attached to the discharge pipe 10 and the discharge pipe attachment body 104 can be attached to the base pipe 34.

Next, Example 2 will be described with reference to FIGS.
The second embodiment is an example in which the flow rate adjusting body holding body 200 is attached to the shower head 230 which is the discharge pipe 10.
The same parts as those in the first embodiment are denoted by the same reference numerals, description thereof is omitted, and different structures are described.
The flow rate adjusting body holding body 200 of the second embodiment also includes a base mounting body 202 and a discharge pipe mounting body 204.
The base pipe 34 of the second embodiment has flexibility, but cannot rotate around the axis.

First, the base mounting body 202 will be described.
The base mounting body 202 has a cylindrical shape, and a circular bearing hole 206 serving as a first mounting portion 119A is formed at the center, and the outer peripheral surface 208 is in order from the base pipe 34 side, the second medium diameter portion 210, the fourth A small diameter portion 212 and a fourth large diameter portion 214 are formed.
The rotating pair mounting portion 118 includes a bearing hole 206 in the second embodiment.
The second middle diameter portion 210 is formed with an outer screw portion 216 that constitutes the screw portion 114. In other words, the external thread portion 216 is formed at one end portion of the base attachment body 202.
An O-ring 218 is fitted on the fourth small diameter portion 212.
In the fourth large diameter portion 214, a fifth special tool locking surface 224A and a sixth special tool locking surface 224B of the third special tool mounting portion 222 are formed.
When attaching the base mounting body 202 to the base pipe 34, after inserting the elastic ring 226 into the end of the base pipe 34, the second medium diameter part 210 is inserted into the hole of the base pipe 34, and the external thread part 216 is attached. Screw into the internal threaded portion 228 of the base piping 34.
At this time, the special tool 124 is locked to the third special tool locking portion 222, and a commercially available tool is locked to the tool locking portion 232 on the outer surface of the base pipe 34 to be firmly tightened. As a result, the elastic ring 226 is deformed and cannot be loosened unless a large force is applied.

Next, the discharge tube attachment body 204 will be described.
The discharge tube mounting body 204 has a function of supporting the discharge tube 10, in the present embodiment 2, the shower head 230 to be rotatable with respect to the base mounting body 202 and non-slidable in the axial direction, in other words, not removable. Have.
The discharge pipe attachment body 204 is cylindrical and has a fifth small diameter portion 234 and a fifth large diameter portion 236 in the outer shape, and the internal shape is the second small diameter hole 238 in order from the base attachment body 202 side. A second medium diameter hole 242 and a second large diameter hole 244 are formed.
The fifth small diameter portion 234 constitutes the shaft portion 240 of the discharge tube attachment body 204.
Therefore, the fifth small diameter portion 234 is the second attachment portion 119B.

A fourth special tool locking portion 246 is formed on a part of the outer peripheral surface of the second large diameter portion 236. The fourth special tool locking portion 246 includes a seventh special tool locking surface 246A and an eighth special tool locking surface 246B that are locking portions of the special tool 214.
The second small diameter hole 238 is generally formed corresponding to the fifth small diameter portion 234, has a circular cross section, and the liquid flowing out from the base pipe 34 can flow therethrough.
The second medium-diameter hole 242 is formed corresponding to the fifth large-diameter portion 236, is a hole having a circular cross section, and constitutes the holding hole 152.
The second medium diameter hole 242 and the fifth small diameter hole 234 communicate with each other through the step portion 248 and the tapered hole 252.
A flow rate adjusting body 176 is disposed in the second medium diameter hole 242. Specifically, the flow rate adjusting body 176 is positioned by being pressed against the step portion 248.
The second large-diameter hole 244 communicates with the second medium-diameter hole 242 via a slightly large-diameter elastic ring hole 254.

A ring-shaped elastic ring 256 is disposed in the elastic ring hole 254. This is to prevent water leakage and prevent unauthorized removal of the discharge tube 10.
The second large diameter hole 244 is formed with an internal thread portion 258 as the thread portion 156.
The inner threaded portion 258 is screwed with an outer threaded portion 262 of a holding nut 260 as a holding body for the base of the shower head 230.
At this time, the special tool 214 is locked to the fourth special tool locking portion 246, and the commercially available tool is locked to the holding nut 260 to be screwed firmly. As a result, the tip of the holding nut 260 pushes and deforms the elastic ring 256, and cannot be loosened unless the special tool 214 is used.
The fifth small diameter portion 234 is rotatably inserted into the bearing hole 206 of the base mounting body 202, and the locking ring 172 is locked to the ring groove 164 formed on the peripheral surface, and slides in the axial direction of the base mounting body 202. Mounted impossible.
That is, when the discharge pipe mounting body 204 moves to the base pipe 34 side, the end surface 261 of the fifth large diameter portion 236 is locked to the end surface of the fourth large diameter portion 214 and moved to the shower head 230 side. The locking ring 172 is locked to the end face of the base mounting body 202 and cannot move. In other words, the base attachment body 202 and the discharge tube attachment body 204 cannot substantially move relative to each other in the axial direction.
An O-ring 268 is fitted into an O-ring groove 266 on the peripheral surface of the fifth small diameter portion 234 to prevent water leakage.

The flow rate adjusting body holding body 200 is traded with the base mounting body 202 and the discharge pipe mounting body 204 being integrated.
In other words, the fifth small diameter portion 234 of the discharge tube mounting body 204 is inserted into the bearing hole 206 of the base mounting body 202, and the locking ring 172 is locked to the ring groove 164.
Of course, O-ring 268 is also installed. In many cases, special tools 214 and flow regulators 176 are also traded together.
In the second embodiment, the rotary pair mounting portion 118 includes a shaft portion 240 as the second mounting portion 199B and a bearing hole 206 as the first mounting portion 199A.

Next, an operation of attaching the shower head 230 to the base pipe 34 in the second embodiment will be described.
First, the outer threaded portion 262 at the base of the shower head 230 is screwed into the inner threaded portion 258 of the discharge tube mounting body 204, the special tool 214 is locked to the fourth special tool locking portion 246, and the shower head 230 is held. A commercially available tool is locked to the nut 260 and tightened firmly.
Next, the outer threaded portion 216 of the base mounting body 202 is screwed into the inner threaded portion 228 of the base piping 34, the special tool 124 is locked to the third special tool locking portion 222, and the tool locking portion 232 of the base piping 34 is locked. Also fasten and tighten the commercial tool. As a result, the base attachment body 202 cannot be easily removed from the base pipe. Furthermore, the locking ring 172 prevents the discharge tube mounting body 204 from sliding relative to the base mounting body 202, and the locking ring 172 is disposed in the base piping 34, and therefore cannot be easily accessed.

When a rotational torque is applied to the shower head 230, the discharge tube attachment body 204 rotates with respect to the base attachment body 202. At this time, rotational torque also acts between the inner screw portion 258 and the outer screw portion 262 of the shower head 230 and the discharge pipe attachment body 204, but the frictional resistance between the shaft portion 240 and the bearing hole 206 is Since it is extremely small, the discharge tube mounting body 204 rotates with respect to the base mounting body 202, and the screwing between them does not loosen.
Similarly, rotational torque acts between the outer threaded portion 216 and the inner threaded portion 228 between the base pipe 34 and the base mounting body 202, but does not loosen.
Therefore, since the shaft part 240 is rotatable with respect to the bearing hole 206, the shower head 230 can rotate. When the shower head 230 is pulled in the axial direction with respect to the base pipe 34, the locking ring 172 is locked to the end surface of the base mounting body 202, and the discharge pipe mounting body 204 is separated from the base mounting body 202. There is nothing. Further, when pushed in the reverse direction, the end surface 261 of the discharge tube mounting body 204 is locked to the end surface of the fourth large diameter portion 214 of the base mounting body 202 and is not similarly separated. The rotating pair 118 and the locking ring 172 are arranged in the base pipe 34. In other words, without the special tool 148, the base attachment body 202 with respect to the base pipe 34 and the discharge pipe attachment body 204 with respect to the shower head 230 cannot be easily removed.
Therefore, there is an advantage that theft of the flow rate adjusting body 176 can be prevented.

10 Exhalation tube
24, 260 Retaining nut
28 Friction contact
34 Base piping
42, 114, 156, 228, 258 Threaded part
100, 200 Flow rate adjusting body holder
102, 202 Base attachment
104, 204 Discharge tube fitting
106, 208 Outer surface
112, 158, 222, 246 Special tool locking part
116 Internal thread
118 Rotating pair mounting part
119A 1st mounting part
119B Second mounting part
120, 206 Bearing hole
124 Special tools
152 Holding hole
154, 244 Mounting hole
162, 240 Shaft
176 Flow regulator
188 External thread
216 External thread
228 Internal thread
230 shower head
258 Internal thread

Claims (6)

A flow rate adjusting body holding body (100, 200) is attached to the threaded portion (42) at the end of the base pipe (34) provided in a fixed state, and the discharge pipe is attached to the flow rate adjusting body holding body. (10) is attached rotatably, and the flow rate adjusting body mounting device in which the flow rate adjusting body (176) is arranged in the flow rate adjusting body holding body,
The flow rate adjusting body holding body includes a cylindrical base mounting body (102, 202) and a discharge pipe mounting body (104, 204),
The吐液tube mounting body is a turning pair with respect to said base mount, or One, through turning pair attaching portion disposed immovably said flow rate adjusting body holding body in the axial direction (118) attached And
The base mounting body has a threaded portion (114) that can be screwed into a threaded portion (42, 228) of the base pipe (34) at one end, and a special tool locking for locking a special tool (124) to the outer peripheral surface. Part (112, 214),
The discharge tube attachment body is formed with a special tool locking portion (158, 246) for locking the special tool on an outer peripheral surface, and a screw portion (156) for holding the discharge tube. An apparatus for mounting a flow rate adjusting body characterized by comprising: A flow rate adjusting body holding body (100, 200) is attached by screwing to a threaded portion (42, 228) at the end of a base pipe (34) provided in a fixed state, and the flow adjusting body holding body is discharged. In the attachment device of the flow rate adjusting body in which the liquid pipe (10) is rotatably attached and the flow rate adjusting body (176) is arranged in the flow rate adjusting body holding body,
The flow rate adjusting body holding body includes a cylindrical base mounting body (102) and a discharge tube mounting body (104),
The base mounting body has a threaded portion (114) that can be screwed into a threaded portion of the base piping at one end, a special tool locking portion (112) for locking the special tool (124) to the outer peripheral surface (106), And the first attachment portion (119A) for holding the discharge tube attachment body rotatably and non-slidable in the axial direction at the other end portion,
The discharge tube attachment body has an attachment hole (154, 244) for rotatably holding the base portion of the discharge tube at one end, and a special tool locking portion for locking a special tool on the outer peripheral surface ( 158, 246), and a screw portion (156) for holding the discharge tube, and a second attachment portion (119B) attached to the other end portion so as to be rotatable with respect to the first attachment portion and immovable in the axial direction. ) And a holding portion (152) for the flow rate adjusting body is formed. A flow rate adjusting body holding body (100) is attached to the threaded portion (42) on the outer peripheral surface of the end of the base pipe (34) provided in a fixed state, and the friction contact body is attached to the flow rate adjusting body holding body. In the attachment device of the flow rate adjusting body in which the discharge pipe (10) is rotatably attached by the holding nut (24) with the interposition (28), and the flow rate adjusting body (176) is arranged in the flow rate adjusting body holding body,
The flow rate adjusting body holding body includes a cylindrical base mounting body (102) and a discharge tube mounting body (104),
The base mounting body engages an inner thread portion (116) that can be screwed into an outer peripheral surface of the base pipe on an inner peripheral surface of one end portion, and a special tool (124) on the outer peripheral surface (106). A special tool locking part (112) for, and a bearing hole (120) for receiving the shaft part (162) of one end part of the discharge pipe attachment body at the other end part,
The discharge pipe attachment body has an attachment hole (154) for rotatably holding the base of the discharge pipe at one end, and an external screw for screwing a holding nut (24) of the discharge pipe to the outer peripheral surface. And a holding portion (152) for the flow rate adjusting body is formed at the other end portion and the shaft portion attached to the bearing hole so as to be rotatable and immovable in the axial direction. An apparatus for mounting a flow rate adjusting body characterized by the above. The flow adjustment body holding body (200) is attached to the threaded portion (228) of the end inner peripheral surface of the base pipe (34) provided in a fixed state, and the discharge pipe is attached to the flow adjustment body holding body. (230) is rotatably attached, and the flow rate adjusting body mounting device in which the flow rate adjusting body (176) is arranged in the flow rate adjusting body holding body,
The flow rate adjusting body holding body includes a cylindrical base mounting body (202) and a discharge tube mounting body (204),
The base mounting body has an outer threaded portion (216) that can be screwed into a threaded portion of the inner peripheral surface of the base pipe on an outer peripheral surface of one end portion, and a special tool locking portion (222) for locking a special tool on the outer peripheral surface. And a bearing hole (206) for receiving the shaft portion (240) of one end portion of the discharge pipe attachment body at the other end portion,
The discharge tube attachment body includes an attachment hole (244) for holding the base portion of the discharge tube at one end, and an internal nut for screwing a holding nut (260) for holding the discharge tube on the inner peripheral surface. The screw portion (258) and the shaft portion attached to the other end of the bearing hole so as to be rotatable and immovable in the axial direction are formed, and a holding portion (152) for the flow rate adjusting body is formed. An apparatus for mounting a flow rate adjusting body characterized by the above. The apparatus for attaching a flow rate adjusting body according to any one of claims 1 to 3, wherein the discharge pipe is a water tap (12).
The apparatus for mounting a flow rate adjusting body according to claim 4, wherein the discharge pipe is a shower head (230).

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