JPH0258516B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a pipe joint used, for example, in drainage piping in buildings. This invention relates to a pipe joint whose slope can be easily adjusted through bolts.

(Prior art) For example, when installing drainage piping, in order to ensure a proper piping slope, the pipe fittings to be used must be placed at a predetermined distance or distance from the concrete floor slab of the building (hereinafter simply referred to as the slab). It is necessary to support the pipe in the same position and adjust the piping level.

In this case, conventionally, for example, when the drainage horizontal pipe is so-called slab-top rolling piping, a piece of wood of an appropriate size is interposed at a required interval between the top surface of the slab and the bottom surface of the pipe, and this The pipe is supported while adjusting its level so that the slope is 1/50. In addition, in the case of so-called ceiling piping, the piping is supported by hanging bolts from threaded anchors etc. buried in the slab, and connecting the lower ends of the bolts to hanging bands, etc. attached separately to the pipes and pipe fittings. It is common that

That is, in these, the support and adjustment of the pipe joint is not performed by itself, but mainly by supporting the pipe. The former method described above is a makeshift method, and the latter method requires a separate hanging band, etc., which causes problems in terms of work time. In connection with these, various improvements have been made in recent years.

For example, in the 51st year of Utility Modeling, a technical means for supporting bolts was added to the pipe joint itself.
-99818 is known.

(Problems to be Solved by the Invention) However, the technique disclosed in Japanese Utility Model Application Publication No. 51-99818 has the following problems.

This is due to the fact that the bolt insertion holes made in the projecting piece as a technical means for bolt support are simply drilled holes, so-called "dumb holes". It looks like this:

In other words, in order to lift and support a pipe fitting on a slab using a normal bolt, for example, in addition to the bolt, it is necessary to lock the projecting piece on the underside of the projecting piece to support the pipe fitting. The problem is that at least one supporting nut is required.

In addition, in order to prevent the bolt from falling out of the pipe joint, it is necessary to install a nut that is screwed onto the bolt from above the protrusion and tightened by sandwiching the protrusion. There is a management problem in that one piece is required, which increases the number of parts. Moreover, in this case, when adjusting the level or position of the pipe joint with respect to the slab on the protrusion, it is necessary to loosen one nut and tighten the other. There is a problem in that the adjustment is time-consuming and troublesome.

Furthermore, in the technique disclosed in Japanese Utility Model Application Publication No. 51-99818, a projecting piece with a bolt insertion hole is
It is formed with an appropriate thickness with the outer surface being the tangent line parallel to the axis, so for example,
Pipe joints such as "degree elbows" have the following problems, depending on the bending direction of the pipe and the form of support of the pipe joint. In other words, if you use the same "90-degree elbow with different diameters" and bend the pipe to the right, the protrusion will be located almost completely on the slab surface, but conversely, if you bend the pipe to the left, When bending, the projecting piece will inevitably be located in a state where it is largely lifted from the slab surface. Therefore, even if the same "90 degree elbow with different diameter" is used, there will be so-called right-hand and left-hand versions, and therefore two types may be required.For example, "screw-in type drainage" specified in JIS B2303 There is a problem that it lacks versatility compared to general pipe fittings such as "pipe fittings".

Therefore, in view of the above-mentioned problems, the present invention does not lack versatility as a pipe joint, and in addition to supporting the pipe or pipe joint, the position and slope of the pipe relative to the slab surface etc. can be easily and finely adjusted using only bolts. This was devised for the purpose of providing a pipe joint that can be adjusted.

(Means for Solving the Problems) In order to achieve the above object, the pipe joint according to the present invention has ears formed on the outside of the pipe of the main body in a substantially diametrical direction of the pipe. In addition, a screw hole is provided through the ear, into which a bolt can be detachably screwed.

(Function) According to the above configuration, when piping is performed using the pipe joint according to the present invention, a matching thread is provided in the threaded hole of the pipe joint before or during the construction. By screwing in bolts of appropriate length, the supporting action of the piping or pipe fitting is achieved, and by screwing the bolts in or out by an appropriate amount along with the support, it is possible to secure the piping against the slab, etc. The sky or distance can be finely and easily adjusted.

Therefore, for example, when the drain pipe is a slab-top rolling pipe, the slope of the pipe relative to the slab surface can be easily adjusted to an appropriate value.

(Example) Next, an example of the pipe joint according to the present invention will be described based on FIGS. 1 to 4.

In FIG. 1, a main body 2 of a pipe joint 1 according to the present embodiment is formed into a substantially cylindrical shape, and has threaded portions 3, 3 on the inside of both ends, to which pipes P, P are connected, respectively. has been done.

Further, on the outer wall of the conduit at the substantially central portion of the main body 2, an ear 5, which is provided with a screw hole 4 therethrough, protrudes horizontally in this example with respect to the approximately diametrical direction of the conduit. is formed. The bolt B is inserted into the screw hole 4 with its head B' facing down.
The pipe fitting 1 is detachably screwed onto the slab S and supported at a certain distance from the slab S. In addition,
In this embodiment, as shown in FIG. 2, the ears 5 are formed to protrude from both sides of the main body 2 on a plane, and bolts B, B are screwed into them, respectively.

Next, the operation, effects, etc. of this example will be explained.

However, this example shows the case of rolling piping on a slab, but in this case, first, before or during construction, the threaded holes 4, 4 of the pipe fitting 1 are
Screw in bolts B, B of appropriate length with matching threads. After connecting the pipe fitting 1 to one pipe P, or the other pipe P
After connecting and completing the piping for this part, screw the bolt B in and out using an appropriate tool to connect the pipe fitting 1.
The position with respect to the slab S is adjusted as appropriate.

Thus, the pipe joint 1 is supported at a desired level with respect to the slab S surface only through the bolts B, and the position and slope of the piping can be easily and finely adjusted.

Moreover, as shown in this example, the screw hole 4
It is sufficient that the ears 5 provided with the lugs 5 are formed on the outside of the duct of the main body 2 so as to protrude substantially in the diametrical direction of the duct. Therefore, in order to prevent so-called right-handed or left-handed pipe fittings from occurring due to the shape or arrangement of the ears, the position of the ears can be selected depending on the shape of the pipe joint. Therefore, regarding right-hand and left-hand pipe fittings, for example,
"Screw-in type drain pipe joint" specified in JIS B2303
without losing the same versatility.

Although not shown, by sequentially performing this work on other pipe joints of this pipe, the entire pipe between them can be easily brought to an appropriate level.

In addition, in the case of drainage piping, even if it is necessary to make fine adjustments to ensure the proper pipe slope after piping construction, simply screw bolt B in and out by an appropriate amount. This can be easily done by letting

In this example, the bolt B is a commonly used fully threaded hexagonal bolt, but the bolt is a so-called full threaded bolt without a head as shown in Figure 3. bolt B,
It may also be screwed into the threaded hole 24 of the pipe joint 21. When using a fully threaded bolt, its upper end is screwed into the threaded part of the anchor buried in the underside of the slab, and the lower end is inserted into this pipe joint 2.
By screwing into the screw hole 24 of 1, the piping can be suspended and supported, so it is suitable for ceiling piping.

However, in the case shown in FIG. 3, the nut N is screwed in and tightened from the lower end side of the fully threaded bolt B. By doing this, the piping is not only supported by the fully threaded bolt B, but also fixed and stabilized.

In addition, in the above embodiment, the socket-type pipe joint is used to simply connect pipes, and the number of screwed bolts is two. Of course, the present invention is not limited to these, and can also be applied to T-shaped pipe joints, elbows, and the like. In particular, in the case of a T-shaped pipe joint 31 shown in Fig. 4,
By using three bolts B, not only the stability when placed on the slab is improved, but also the fine adjustment of the piping level and slope can be made more easily.

Note that the pipe joint according to the present invention is not particularly limited to the purpose or type of piping, and can also be used for vertical piping.

(Effect of the invention) Since the present invention is configured as described above,
It has the following effects.

That is, according to the present invention, while maintaining the same versatility as conventional general pipe fittings, it is possible to support pipes or pipe fittings only through bolts, and the position and slope of the pipes relative to slab surfaces etc. This has the effect that it can be easily and finely adjusted.

[Brief explanation of drawings]

The drawings show an embodiment of the pipe joint according to the present invention; Fig. 1 is a partially cutaway front view thereof, Fig. 2 is a plan view thereof, and Fig. 3 is a diagram showing a state in which a fully threaded bolt is screwed. FIG. 4, which is a partially cutaway front view for explanation, is a plan view of a T-shaped pipe joint with three bolts. 1, 21, 31...Pipe fitting, 2...Body, 4,
24...screw hole, 5...ear, B...bolt, S...
...Slab.

Claims (1)

[Claims] 1. An ear is formed on the outside of the conduit of the main body so as to protrude approximately in the diametrical direction of the conduit, and a screw hole into which a bolt can be detachably screwed is provided through the ear. A pipe joint characterized by: