JP2020070811A - Fluid instrument pipeline connection structure - Google Patents

Abstract

To provide a fluid instrument pipeline connection structure which achieves thickness reduction of a connection part between a fluid instrument, such as a bath cleaning nozzle, and a pipeline member to become suitable for installation to a narrow space, etc.SOLUTION: A fluid instrument pipeline connection structure A includes first and second stopper wall parts 13a, 13b which are provided so as to protrude from a joint cylindrical part 12 of a fluid instrument 1 in its lateral width direction and face each other through a gap 9 in an axial length direction of the joint cylindrical part 12. A fastener 3 attached to a pipeline member 2 includes a protruding part 31 protruding in the lateral width direction. The protruding part 31 is disposed at the gap 9 to restrict movement of the fastener 3 relative to the joint cylindrical part 12 in the axial length direction.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a fluid appliance pipe connection structure for connecting a fluid appliance such as a bath cleaning nozzle to a piping member such as a hose.

  The applicant has proposed a bathtub cleaning nozzle that is attached to the bottom of a bathtub and used to wash the bathtub by spraying cleaning water toward the inside of the bathtub (see Patent Document 1). ). To such a bath cleaning nozzle, it is necessary to connect a piping member for supplying cleaning water in a state in which it does not come off. On the other hand, the bathtub cleaning nozzle must be installed in a space formed between the bottom of the bathtub and the lower part of the bathtub, and the bathroom floor surface. There are many. Therefore, it is desired that the connection between the bath cleaning nozzle and the piping member be as bulky as possible in the vertical height direction.

On the other hand, conventionally, joints having various structures have been proposed as pipe connecting means, such as those that use a simple stopper to prevent slippage (for example, Patent Documents 2 to 4).
However, all of these conventional joints tend to be bulky over the entire outer periphery of the piping member, and have a relatively large vertical width as well as a horizontal width. This is not very suitable for use in a small space.

JP, 2008-237436, A JP, 10-184598, A JP 2001-12672 A Japanese Patent No. 4231676

  The present invention has been devised under the circumstances described above, and is suitable for installation in a narrow space, etc. by achieving a thinner connecting portion between a fluid appliance such as a bath cleaning nozzle and a piping member. It is an object of the present invention to provide a fluid device piping connection structure that can be realized.

  In order to solve the above problems, the present invention takes the following technical means.

A fluid instrument piping connection structure provided by the present invention is a fluid instrument having a joint tubular portion, and a pipe member connected to the fluid instrument in a state where one end is fitted to the joint tubular portion, A fluid instrument pipe connection structure, comprising: a stopper attached to an outer surface portion of the pipe member, the stopper for restricting movement of the pipe member in an axial direction thereof, wherein the joint tubular shape of the fluid instrument is provided. First and second stopper wall portions that are provided so as to project from the portion in the lateral width direction and that face each other with a gap in the axial direction of the joint tubular portion, and the lateral width in the stopper. The first and second stopper wall portions are provided so as to project in the axial direction, and the movement of the stopper in the axial direction with respect to the joint tubular portion is restricted. And a protrusion that is arranged in the gap. It is a symptom.
In the present invention, the fluid device may be configured to be a bathtub cleaning nozzle that is attached to a bathtub and sprays cleaning water into the bathtub, or a component thereof.

According to such a configuration, the first and second stopper wall portions provided on the fluid device engage with the protruding portion of the stopper, so that the fluid device and the piping member are prevented from coming off. In addition to being able to connect in an appropriate state, the following effects are further obtained.
The first and second stopper wall portions provided on the joint tubular portion of the fluid device project in the lateral width direction of the joint tubular portion, and the protrusions of the stopper also project in the same direction. It is a form, and is arranged in the gap between the first and second stopper wall portions. Therefore, both the joint tubular portion and the stopper can be made less bulky in the vertical width direction. As a result, it is possible to reduce the vertical width of the entire connecting portion between the fluid device and the piping member, and to make it suitable for installing the fluid device and the piping member in a narrow space.

  In the present invention, preferably, the vertical widths of the first and second stopper wall portions and the stopper are equal to or smaller than the vertical width of the joint tubular portion.

  According to such a configuration, in the connection portion between the fluid device and the piping member, the first and second stopper wall portions and the stopper protrude in the vertical width direction beyond the outer peripheral surface of the joint tubular portion. You can prevent it from happening. Therefore, it is more preferable in preventing the vertical width of the connecting portion between the fluid device and the piping member from becoming bulky.

  In the present invention, preferably, as the first and second stopper wall portions, a pair of left and right first and second stopper wall portions positioned on both sides of the joint tubular portion in the lateral width direction are provided. The projection includes a pair of left and right projections located on both sides of the stopper in the lateral width direction.

  With such a configuration, the connection between the fluid device and the piping member can be made more stable. That is, in the present invention, it is possible to further reduce the size of the overall structure by providing the first and second stopper wall portions that project to only one side in the lateral width direction of the joint tubular portion of the fluid device. However, this is not a good balance between left and right. On the other hand, according to the above configuration, the first and second stopper wall portions and the protruding portions of the stopper are provided in a pair of left and right, so that the left and right are well balanced, and the fluid device and the piping member It is possible to stabilize the connection with and also increase the strength.

  In the present invention, preferably, the stoppers are provided above or below the pair of first and second stopper wall portions, and the stopper is prevented from rotating around the pipe member more than a certain amount. It further includes a pair of third stopper wall portions that can come into contact with the pair of protruding portions.

With such a configuration, the following effects can be obtained.
That is, when the stopper is largely rotated around the pipe member, the protruding portion of the stopper escapes from the gap between the first and second stopper wall portions to prevent the fluid device and the pipe member from coming off. May be released. On the other hand, according to the above configuration, since the stopper can be prevented from largely rotating around the pipe member, it is possible to appropriately avoid the above-mentioned fear.

  Other features and advantages of the present invention will become more apparent from the following description of the embodiments of the invention with reference to the accompanying drawings.

(A) is an essential part side sectional view showing an example of a fluid device piping connection structure according to the present invention, (b) is an Ib-Ib sectional view of (a), and (c) is (b). ) Is a bottom view of the arrow Ic. (A) is a main part exploded perspective view of the fluid device piping connection structure shown in FIG. 1, and (b) is a main part exploded perspective view of (a). (A) is a front view of the stopper used for the fluid appliance piping connection structure shown in FIG. 1, and (b) is a IIIb-IIIb sectional view of (a).

  Hereinafter, preferred embodiments of the present invention will be specifically described with reference to the drawings.

  The fluid appliance pipe connection structure A shown in FIGS. 1 and 2 is a bathtub cleaning nozzle 1 corresponding to an example of the “fluid appliance” in the present invention, and a piping member for supplying cleaning water to the bathtub cleaning nozzle 1. 2 and a stopper 3. The fluid device piping connection structure A of the present embodiment is configured as a connection structure of the bath cleaning nozzle 1.

  The bath cleaning nozzle 1 has the same configuration as that described in Patent Document 1, except for the configuration of a nozzle receiver 11 described later. That is, the bath cleaning nozzle 1 has a structure in which the nozzle body 10 is supported by the nozzle receiver 11, and is used by being attached to the bottom wall 8 of the bath. When the cleaning water is supplied from the pipe member 2 into the nozzle receiver 11, the cleaning water is sprayed from the nozzle body 10 toward the inner surface of the bath, whereby the bath is cleaned.

  The nozzle receiver 11 is made of synthetic resin, and a tubular portion 12 for a joint that extends in a substantially horizontal direction is integrally formed on one end side thereof. As well shown in FIGS. 1C and 2, a pair of left and right first to third stopper walls 13a to 13c are provided at the tip of the tubular joint portion 12. The pair of first stopper wall portions 13a are wall portions that partially bulge from the outer peripheral surface of the joint tubular portion 12 to both sides in the lateral width direction of the nozzle receiver 11. The pair of second stopper wall portions 13b are wall portions that face the distal end side of the joint tubular portion 12 with respect to the pair of first stopper wall portions 13a with a gap 9 therebetween. Each of the second stopper wall portions 13b is connected to each of the first stopper wall portions 13a via the side wall portion 14, and these have a substantially U-shape in bottom view as shown in FIG. 1 (c). Connected to. Each of the third stopper wall portions 13c is a wall portion that is provided so as to partially connect the upper portions of the first and second stopper wall portions 13a and 13b, and closes the upper side of the gap 9 ( See FIG. 1 (b). However, the third stopper wall portion 13c can be provided so as to connect the lower portions of the first and second stopper wall portions 13a and 13b.

The piping member 2 has a configuration in which an auxiliary pipe body 21 is attached to the tip of the hose 20. The auxiliary pipe body 21 is a member to which a sealing O-ring 22 is attached, and an annular groove 23 for engaging and attaching the stopper 3 is formed on the outer peripheral surface. The auxiliary pipe body 21 is fixedly connected to the tip end portion of the hose 20 so as not to come off. As a means for this, for example, a thin metal tubular member 24 fitted on the hose 20 is radially attached. A means is employed in which the tip of the hose 20 is pressed against the auxiliary pipe 21 by compressing and crimping.
The tip portion of the auxiliary pipe body 21 of the pipe member 2 is fitted into the joint tubular portion 12 of the bath cleaning nozzle 1 (nozzle receiver 11).

The stopper 3 is formed by bending a band-shaped metal plate having a constant width, and as shown in FIG. 3, is a bifurcated member in front view having an opening 30 in a part (upper part) thereof. .. The stopper 3 has a pair of projecting portions 31 each having a substantially V shape in a front view, in which a substantially central portion in a vertical height direction thereof projects to both sides in a lateral width direction. As shown in FIGS. 1 (a) and 1 (b), the stopper 3 is attached to the outer surface of the pipe member 2 so that a part of the stopper 3 is engaged with the annular groove 23 of the pipe member 2. .. Since the stopper 3 has a spring property that allows the width of the opening 30 to be expanded and contracted, the stopper 3 is temporarily deformed so as to widen the width of the opening 30 to surround the periphery of the piping member 2. It is possible to attach. Further, such a fitting of the stopper 3 is carried out in a state where the tip end portion of the piping member 2 is fitted into the joint tubular portion 12 of the bath cleaning nozzle 1 as shown in FIG. 2 (a). Since the gap 9 between the first and second stopper wall portions 13a and 13b has a lower opening shape, the stopper 3 is inserted into the gap 9 from this portion and then mounted on the outer surface portion of the pipe member 2. It is possible.

  As well shown in FIGS. 1B and 1C, the protruding portion 31 of the stopper 3 is disposed in the gap 9 between the first and second stopper wall portions 13a and 13b. As a result, the stopper 3 is restricted from being displaced in the axial direction of the joint tubular portion 12. In FIG. 1C, when the pulling force F acts on the piping member 2, the protruding portion 31 contacts the second stopper wall portion 13b, so that the piping member 2 comes off from the joint tubular portion 12. Is properly prevented.

As shown in FIG. 1B, the protruding portion 31 of the stopper 3 faces the third stopper wall portion 13c in the vertical and vertical width directions, and the stopper 3 is indicated by an arrow Na. As described above, when the pipe member 2 is rotated around the outer peripheral surface, the protruding portion 31 is configured to contact the third stopper wall portion 13c. This properly prevents the stop 3 from rotating further.
The vertical width La of the first and second stopper wall portions 13a and 13b and the vertical width Lb of the stopper 3 are set to be equal to or smaller than the outer diameter Lc (vertical width) of the joint tubular portion 12, The 1st and 2nd stopper wall parts 13a and 13b and the stopper 3 are not the form which protruded above or below the tubular part 12 for a joint.

  Next, the operation of the fluid device piping connection structure A described above will be described.

  First, as described with reference to FIG. 1C, the protruding portion 31 of the stopper 3 mounted on the piping member 2 is located between the first and second stopper wall portions 13a and 13b. With this configuration, the pipe member 2 is prevented from being unjustly displaced in the axial direction of the joint tubular portion 12, and the pipe member 2 is attached to the bathtub cleaning nozzle 1 in a state where it is properly prevented from coming off. It is possible to connect.

  The first and second stopper wall portions 13a and 13b are bulky in the horizontal width direction, but are not bulky in the vertical width direction, and the stopper 3 is also not bulky in the vertical width direction. In the present embodiment, as described above, the vertical widths La and Lb are set to be equal to or less than the outer diameter Lc of the joint tubular portion 12. Therefore, it is possible to thoroughly reduce the thickness of the connecting portion between the piping member 2 and the bath cleaning nozzle 1. As shown in FIG. 1 (a), the connection between the piping member 2 and the bathtub cleaning nozzle 1 is arranged in a narrow space between the bottom wall 8 of the bathtub and the bathroom floor 7 located below the bottom wall 8. However, it is possible to appropriately arrange in such a small space. The horizontal width of the connecting portion between the piping member 2 and the bathtub cleaning nozzle 1 is relatively large, but the space between the bottom wall portion 8 of the bathtub and the bathroom floor surface 7 is considerably wide in the horizontal width direction. Since the width is large, it does not hinder that the width of the connecting portion is large.

  As described with reference to FIG. 1B, the third stopper wall portion 13c prevents the stopper 3 from rotating in the arrow Na direction at a large angle equal to or larger than a certain value. When the stopper 3 rotates at a large angle, the protrusion 31 may come out of the gap 9 between the first and second stopper wall portions 13a and 13b, and it may become impossible to prevent the stopper from coming off. According to the form, such a fear can be appropriately eliminated.

  The present invention is not limited to the contents of the above-mentioned embodiment. The specific configuration of each part of the fluid device piping connection structure according to the present invention can be variously changed in design within the scope intended by the present invention.

In the above-described embodiment, the first and second stopper wall portions 13a and 13b are provided in a pair of left and right, but the present invention is not limited to this, and they may be provided only on the left side or the right side of the joint tubular portion 12. It is also possible to adopt a configuration provided only in the above.
The fluid device referred to in the present invention is not limited to the bathtub cleaning nozzle, and other fluid devices can be used. Moreover, the specific type and configuration of the piping member are not limited.
The lateral width direction in the present invention is a direction in which the first and second stopper wall portions project from the joint tubular portion. In the above-described embodiment, the lateral width direction of the joint tubular portion is shown to be the horizontal direction, but the invention is not limited to this, and the fluid instrument pipe connection structure according to the present invention is actually provided at a predetermined location. When installed, for example, the joint tubular portion can be set in an inclined posture. When installing the fluid appliance piping connection structure according to the present invention in a space having a small horizontal width, the fluid appliance piping connection structure of the above-described embodiment is rotated by 90 ° and installed in a state where the horizontal width is narrow. Good.

A Fluid appliance pipe connection structure 1 Bath cleaning nozzle (fluid appliance)
12 Joint tubular parts 13a to 13c First to third stopper wall parts 2 Piping member 3 Stoppers 31 Projection parts 9 Gap

Claims (5)

A fluid device having a tubular portion for fitting,
A piping member connected to the fluid device in a state where one end is fitted to the joint tubular portion,
A stopper which is mounted on the outer surface of the piping member and which restricts the movement of the piping member in the axial direction,
A fluid device pipe connection structure comprising:
First and second stopper walls provided so as to project from the joint tubular portion of the fluid device in the lateral width direction thereof and facing each other with a gap in the axial direction of the joint tubular portion. Department,
The first and second stopper walls are provided on the stopper so as to project in the lateral width direction, and the movement of the stopper with respect to the joint tubular portion in the axial direction is restricted. A protrusion arranged in the gap between the parts,
A fluid instrument piping connection structure, further comprising: The fluid device pipe connection structure according to claim 1,
The fluid device piping connection structure, wherein the vertical widths of the first and second stopper wall portions and the stopper are equal to or smaller than the vertical width of the joint tubular portion. The fluid device pipe connection structure according to claim 1 or 2,
As the first and second stopper wall portions, a pair of left and right first and second stopper wall portions located on both sides of the joint tubular portion in the lateral width direction are provided,
A fluid appliance pipe connection structure comprising a pair of left and right protrusions located on both sides of the stopper in the lateral width direction as the protrusions. The fluid device piping connection structure according to claim 3,
The stoppers are provided on the upper and lower parts of the pair of first and second stopper wall portions, and abut on the pair of protrusions so as to prevent the stopper from rotating more than a certain amount around the pipe member. A fluid appliance pipe connection structure further comprising a pair of possible third stopper walls. The fluid device piping connection structure according to any one of claims 1 to 4,
A fluid appliance piping connection structure, wherein the fluid appliance is a bath cleaning nozzle for attaching cleaning fluid to the bath and injecting cleaning water into the bath, or a component thereof.

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