JP2006002801A - Piping supporting structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a piping supporting structure capable of suppressing ultimately the ill influence of a liquid having leaked at a connection part of pipes. <P>SOLUTION: A supporting structure 13 is attached to the connection end of one of the pipes 11 at the time of connecting the pipes for lubricating oil with each other, and is furnished with an extension part 15 installed below the connection part 19 of the pipes. The extension part 15 is formed folded in V-shape from its forefront to the base end, wherein the folded part constitutes a top part 21. The lubricating oil having leaked at the connection part 19 of the pipe 11 with a hose 12 flows down onto the extension part 15, gathers little by little at the top part 21, and drops to the specified position via a guide groove 26 from the base end of the top part 21. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a pipe support structure in which a pair of pipes through which a liquid flows are supported by a support member.

When connecting pipes through which oil flows, such as lubricating oil pipes and hydraulic pipes, it is necessary to prevent the pipes from dropping out and to ensure sufficient airtightness at the connecting portions. For example, in piping systems such as automobiles that are subjected to tension in mechanical vibration systems or connection parts that are subject to vibration, there is a concern that such vibrations or tensions may cause the pipes to fall out or the connection parts to become less airtight. . For this reason, conventionally, various pipe support structures are known in which the connection state of such pipes is supported by a support member so as to stabilize the connection state (see, for example, Patent Document 1).
JP 2001-235074 A

  However, even in a piping system that supports the connection portion in this way, for example, when the deterioration of the piping with time progresses or when the pressure of the oil flowing in the piping rises temporarily, the connection portion Oil may leak and run down from the connection. Normally, the amount of oil that leaks from the connecting portion and flows down in this way is very small, but if such leakage continues for a long period of time, the surrounding contamination by the oil cannot be ignored. In particular, when such oil flows down to a place where the oil is placed at a high temperature, the oxidation and alteration of the oil are promoted, and the resulting fouling becomes more remarkable. In addition, such inconvenience is not limited to oil such as lubricating oil, but can also occur in common in other liquids such as fuel and water.

  The present invention has been made in view of such conventional circumstances, and an object of the present invention is to provide a pipe support structure capable of suppressing as much as possible the adverse effects caused by the liquid leaking from the connection portion of the pipe.

In the following, means for achieving the above object and its effects are described.
In order to achieve the above object, the invention according to claim 1 is a pipe support structure in which a pair of pipes through which a liquid flows is supported by a support member. The gist of the present invention is that it includes an extending portion positioned on the lower side in the vertical direction.

  According to the above configuration, even if the liquid leaks from the connection portion of the pipe, the liquid falls on the extended portion. For this reason, the liquid can be guided in a specific direction from the extended portion, and adverse effects due to the leaked liquid can be suppressed as much as possible.

The gist of the invention according to claim 2 is that, in the invention according to claim 1, the extension portion is extended in the longitudinal direction of the connection portion.
According to the above configuration, most of the liquid that leaks and flows down from the connection portion can be dropped onto the extending portion, and the adverse effect of the leaked liquid can be more suitably suppressed.

  The invention according to claim 3 is the gist of the invention according to claim 1 or claim 2, wherein the extended portion is formed such that a tip portion thereof extends obliquely with respect to a vertical direction from the support member. To do.

  According to the above configuration, compared to the configuration in which the extending portion is extended in the horizontal direction, the liquid leaking from the connecting portion and flowing down is directed from the distal end side to the proximal end side of the extending portion, or from the proximal end side. It is possible to flow stably toward the distal end side, and this can be suitably guided in a specific direction.

  According to a fourth aspect of the present invention, in the third aspect of the present invention, the extended portion extends obliquely upward from the support member with respect to a vertical direction, and the extended portion is provided on the support member. The gist of the present invention is that a guide groove for guiding the liquid flowing from is formed.

  According to the above configuration, it is possible to stably flow the liquid that leaks from the connecting portion and flows down from the distal end side to the proximal end side, that is, the support member side of the extension portion, and further guides the guide groove formed in the support member. Through this, it is possible to guide in a specific direction.

The gist of the invention according to claim 5 is that, in the invention according to any one of claims 1 to 4, the extending portion is formed in a concave cross section.
According to the said structure, the liquid which leaks and flows down from the connection part of piping can be gathered by the recessed part of the extending part, and can be suitably induced | guided | derived to a specific direction through the recessed part.

The gist of the invention according to claim 6 is that, in the invention according to any one of claims 1 to 5, the extending portion is formed to be bent in a V-shaped cross section.
According to the above configuration, since the extending portion is formed in a V-shaped cross section, the liquid falling on the extending portion can be easily collected at the lowermost portion of the extending portion, and the liquid can be more stably specified. Will be able to be guided to.

The gist of the invention according to claim 7 is that, in the invention according to claim 6, the bent portion of the extending portion is disposed at a position facing the lowest point of the connecting portion.
According to the said structure, the bending part of the extension part is arrange | positioned facing the location where the leaked liquid is most likely to fall from a connection part, ie, the lowest point in the perpendicular direction of a connection part. For this reason, most of the liquid leaking from the connecting portion of the piping falls directly to the bent portion. As a result, more liquid can be more stably guided in a specific direction through the bent portion.

Hereinafter, an embodiment in which the present invention is embodied in a pipe support structure used when connecting lubricating oil pipes will be described in detail with reference to the drawings.
As shown in FIG. 1, in the pipe support structure of the present embodiment, a pipe 11 made of vinyl chloride resin as a pipe and a hose 12 made of vinyl chloride resin as a pipe are connected, and the pipe 11 The support member 13 is attached to the connection end (tip). In addition, in this embodiment, both are welded in the state by which the hose 12 was extrapolated by the front-end | tip part of the pipe 11. As shown in FIG.

  The support member 13 is made of a synthetic resin having flexibility, and includes a fixed portion 16 and a support portion 17 integrally formed on the upper end portion of the fixed portion 16. A fixing hole 16 a is formed in the lower portion of the fixing portion 16. The support member 13 is fixed to the vehicle body by a bolt (not shown) inserted through the fixing hole 16a.

  The support portion 17 is curved in a semicircular arc shape and has a shape along the outer peripheral surface of the pipe 11. By fitting the pipe 11 into the support portion 17, both the pipe 11 and the hose 12 connected thereto are supported from below by the support member 13.

  In addition to the fixed portion 16 and the support portion 17, the support member 13 includes an extending portion 15 having a long square plate shape. The extending portion 15 is integrally formed with the fixing portion 16 so that the tip portion thereof extends obliquely upward with respect to the vertical direction, and is positioned below the connecting portion 19 between the pipe 11 and the hose 12. Here, the connection portion 19 means a polymerization site between the pipe 11 and the hose 12 and a connection side end portion of the hose 12. The extending direction of the extending portion 15 coincides with the longitudinal direction (connecting direction) of the connecting portion 19 between the pipe 11 and the hose 12.

  The extended portion 15 is bent in a V shape on both sides of the top portion 21 from the distal end to the proximal end. As shown in FIG. 2, the width w in the horizontal direction between both side edges of the extended portion 15 is set to be larger than the inner diameter d of the hose 12. Further, the top portion 21 of the extending portion 15 is disposed so as to face the lowest point of the connection portion 19 between the pipe 11 and the hose 12, that is, the lowest point 22 of the connection side edge (tip edge) of the hose 12. Has been.

  Further, the extending portion 15 has a pair of receiving surfaces with the top portion 21 as a boundary. Of the pair of receiving surfaces, the first receiving surface 15a is located on the same side as the support portion 17 with the top 21 as a boundary, and the second receiving surface 15b is located on the other side. The second receiving surface 15b is formed at an obtuse angle with respect to the first receiving surface 15a.

  As shown in FIG. 1, a guide projection 24 having a mountain shape is provided at a boundary position between the second receiving surface 15 b and the fixed portion 16. The guide protrusion 24 has a guide surface 25 connected to the second receiving surface 15b. The guide surface 25 is formed in an oblique shape that is inclined downward from the lowermost portion (base end) of the second receiving surface 15b (extension portion 15). Further, a guide groove 26 that is continuous with the top portion 21 of the extended portion 15 is formed in the fixed portion 16. The guide groove 26 extends downward in the vertical direction, and is formed such that the groove depth becomes shallower as the guide groove 26 is separated from the extending portion 15.

  In such a pipe support structure, when deterioration of the pipe 11 and the hose 12 progresses with time, or when the pressure of the lubricating oil flowing through the pipe 11 and the hose 12 temporarily rises, the lubricating oil is supplied from the connecting portion 19 of both the pipes 11 and 12. May leak. At this time, as shown by a broken line in FIG. 1, the lubricating oil leaked from the connection portion falls directly on the top portion 21, or falls on the first receiving surface 15 a or the second receiving surface 15 b and in the vicinity of the top portion 21. Collected. The lubricating oil collected on the top portion 21 flows to the proximal end side of the top portion 21 and reaches the guide groove 26. Finally, the lubricating oil passes through the guide groove 26, specifically between the valley portion and the top portion 27 of the guide protrusion 24, and further flows downward. Thus, according to the present pipe support structure, even if the lubricating oil leaks from the connection portion 19 between the pipe 11 and the hose 12, most of the lubricating oil flows down to a specific position. For this reason, even if there is a heat source directly under the connection portion 19 between the pipe 11 and the hose 12 or there is a member or the like that is desired to avoid fouling by the lubricant, the lubricating oil leaked from the connection portion 19 Do not flow directly to the heat source or their members, but fall to specific locations to avoid them.

The pipe support structure described above can provide the following operational effects.
The lubricating oil leaked from the connection portion 19 between the pipe 11 and the hose 12 flows down onto the extended portion 15 and then falls to a specific position through the top portion 21 and the guide groove 26. That is, the lubricating oil can be suitably guided so as to avoid the heat source installed below the connecting portion 19 between the pipe 11 and the hose 12. Furthermore, in the present embodiment, it is possible to minimize the lubricating oil from freely flowing down from the connecting portion 19 in any direction and fouling the pipe 11 (hose 12).

  -The extension part 15 is formed in the diagonal shape in which the front-end | tip is located above a base end. For this reason, the lubricating oil dropped on the extended portion 15 can be easily and quickly guided to the guide groove 26 (the lowermost portion of the extended portion 15).

  The extending portion 15 is formed in a V shape, and the second receiving surface 15b is formed at an obtuse angle with respect to the first receiving surface 15a. That is, the area of the extended portion 15 that receives the lubricating oil leaked from the connecting portion 19 between the pipe 11 and the hose 12 is secured. Further, the lubricating oil that has flowed down onto the extended portion 15 is sequentially collected to the top portion 21. Therefore, the lubricating oil that has flowed down to the extended portion 15 can be guided to the guide groove 26 more easily and quickly.

  The heat transfer action from the heat source to the pipe 11 (hose 12) is weakened to some extent by the extending portion 15 disposed between the pipe 11 (hose 12) and the heat source. For this reason, deterioration of the pipe 11 (hose 12) due to heat transfer from the heat source can be suitably suppressed.

  The width w in the horizontal direction between both side edges of the extended portion 15 is set larger than the inner diameter d of the hose 12. For this reason, the extending portion 15 can reliably receive the lubricating oil leaked from the connecting portion 19 between the pipe 11 and the hose 12, and suitably collect the lubricating oil on the top portion 21.

  The extending portion 15 extends in parallel with the connection portion 19 between the pipe 11 and the hose 12. That is, the entire extending portion 15 is disposed in the vicinity of the pipe 11 (hose 12). For this reason, the space below the extension part 15 is ensured to the maximum, and the space can be used effectively.

In addition, this embodiment can also be changed and embodied as follows.
-You may set the width w in the horizontal direction between the both-sides edges of the extension part 15 to be the same as the inside diameter d of the hose 12, or slightly smaller.

  -The extension part 15 should just be formed in the cross-sectional concave shape in order to guide | lead the lubricating oil leaked from the connection part 19 of the pipe 11 and the hose 12 exactly. That is, the shape of the extended portion 15 is not limited to the V shape, and may be changed to an arc shape that gently swells downward, a funnel shape, or the like. Further, a configuration may be employed in which a groove is formed along the longitudinal direction of the extending portion 15 and the lubricating oil is guided in a predetermined direction by the groove. In this case, the shape of the groove is not particularly limited.

  -You may employ | adopt the structure which flows the lubricating oil leaked from the connection part 19 of the pipe 11 and the hose 12 toward the front end side from the base end side of the extension part 15. As shown in FIG. That is, the extended portion 15 is formed in a slanted shape with the tip portion extending obliquely downward with respect to the vertical direction. In this case, the lubricating oil falls to a specific position through the tip of the extended portion 15.

  -In this embodiment, although the top part 21 employ | adopted the one extended part 15, you may employ | adopt the extended part 15 which has the 2 or more top parts 21. FIG. In this case, a configuration in which an angle formed by a pair of adjacent receiving surfaces with the top portion 21 as a boundary is an obtuse angle is preferable.

-The shape of the extension part 15 is not limited to a long square plate shape, You may change this into polygonal plate shapes, such as a regular square plate shape or a hexagon plate shape.
-You may employ | adopt the structure which makes the angle which the 2nd receiving surface 15b and the 1st receiving surface 15a make into an acute angle.

  -The guide protrusion 24 may be omitted. In this case, the lubricating oil that has flowed down from the connecting portion 19 between the pipe 11 and the hose 12 onto the extending portion 15 falls directly from the base end of the top portion 21 to a specific position.

The support member 13 may be formed of a material different from the synthetic resin, for example, a metal material such as brass.
-When connecting pipes other than the lubricating oil pipe of the vehicle, the pipe support structure of the present embodiment may be adopted for the purpose of exhibiting the same effect. In this case, the liquid leaking from the connection portion of the pipe is not limited to the lubricating oil, but may be other liquid such as fuel or water.

The perspective view which shows the piping support structure of this embodiment. FIG. 2 is a side sectional view taken along line 2-2 of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 11 ... Pipe as piping, 12 ... Hose as piping, 13 ... Supporting member, 15 ... Extension part, 19 ... Connection part, 21 ... Top part, 22 ... Bottom point, 26 ... Guide groove

Claims (7)

In a pipe support structure that supports a pair of pipes through which liquid flows by a support member
A pipe support structure comprising an extension part extending from the support member and positioned vertically below a connection portion of each pipe. In the piping support structure according to claim 1,
The pipe support structure, wherein the extended portion is extended in a longitudinal direction of the connection portion. In the piping support structure according to claim 1 or 2,
The extending portion has a pipe support structure characterized in that a tip portion of the extending portion extends obliquely with respect to a vertical direction from the support member. In the piping support structure according to claim 3,
The extending portion has a tip portion extending obliquely upward from the vertical direction from the supporting member, and the supporting member is formed with a guide groove for guiding the liquid flowing from the extending portion. Piping support structure. In the piping support structure according to any one of claims 1 to 4,
The pipe support structure, wherein the extending portion is formed in a concave cross section. In the piping support structure according to any one of claims 1 to 5,
The pipe support structure, wherein the extended portion is bent in a V-shaped cross section. In the piping support structure according to claim 6,
A piping support structure, wherein the bent portion of the extending portion is disposed at a position facing the lowest point of the connecting portion.

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