JPH1089541A - Pipe fixture - Google Patents

Abstract

PROBLEM TO BE SOLVED: To efficiently mount a pipe fixture fixed to a fixed part to a pipe when the pipe is laid. SOLUTION: The pipe fixture is formed of a stationary part 1 and a pipe- mounting part 9, the stationary part consists of an upper part 4 having a nut 6 screwed on a bolt 23 fixed to a fixed part, and its lower end foot pieces 2, and the pipe-mounting part consists of a semi-ring-like fixed ring 10, its upper end fixed connecting piece 11, a semi-ring-like movable ring 12, and its upper end movable connecting piece 13. The fixed ring and the movable ring are pivoted on a hinge 4. Both the foot pieces and the fixed connecting piece are connected with a pin 21. When the movable ring is closed to connect the movable connecting piece to the pin, both the foot pieces engagingly lock the movable connecting piece to at least one of the fixed connecting piece except for the movable connecting piece, after the foot pieces are once spread out against the movable connecting piece, and fix a retaining spring 15 for spreading out the movable connecting piece to release the engaging locking. Thus, there is no need for inserting bolts, screwing nuts, and a pipe can be pinched-fixed simply by closing the movable ring.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a sprinkler.
The present invention relates to a device for fixing a pipe to an immovable portion such as a ceiling, a floor, or a wall in piping such as a water pipe or a water pipe.

[0002]

2. Description of the Related Art When piping is to be carried out on an immovable part, especially on a ceiling, first, a pipe fitting of a standard corresponding to the outer diameter of the pipe is fixed to a suspension bolt fixed to the ceiling, and then the pipe is clamped by the pipe fitting. Then, the tube is fixed with bolts and nuts for fixing the sandwiched tube.

However, when piping on a ceiling, the work is often performed while standing on a stepladder. It is difficult to insert bolts into the pipe fittings and screw the nuts to the bolts on a stepladder with poor scaffolding. Nuts were often dropped when worn.
Since the bolts and nuts of the pipe fitting are in accordance with the standard of the pipe fitting, there is no substitute. Therefore, once the bolts and nuts were dropped, the stepladder had to be dropped and picked up, which was troublesome and caused a delay in piping work.

[0004] Some tube fittings which have attempted to solve such problems are provided with a sponge-shaped plastic spacer to prevent the bolt from coming off. When the bolt is inserted through the spacer, the bolt does not fall off the pipe fitting.

[0005] However, pipe fittings using this spacer are sometimes removed because the bolts are separate. In addition, there was a disadvantage that the spacer deteriorated over time and the installation of the tube was easily loosened.

Accordingly, the present applicant has developed a pipe fitting in which bolts are prevented from falling off, and previously applied for a patent under the name of "pipe fitting" (Japanese Patent Application No. 8-210608). This "tube fitting" also does not drop the bolt, but it is necessary to screw the nut to the bolt, so it takes time and effort to screw the nut, and there is a risk that the nut may be dropped when screwing,
It was not perfect.

[0007]

SUMMARY OF THE INVENTION An object of the present invention is to enable a pipe to be fixed without using a nut.

[0008]

The features of the present invention are as follows. The fixing part is composed of a fixing part and a pipe mounting part, and the fixing part is provided with opposing leg pieces from an upper lower end part having a nut screwed to a bolt fixed to the immovable part, and the pipe mounting part is formed from the upper end. The lower end of the semi-circular fixed ring projecting from the fixed connecting piece and the lower end of the semi-circular movable ring projecting from the upper end by the movable connecting piece sandwich the tube between the fixed ring and the movable ring. It is hinged as much as possible.

[0009] Then, the two leg pieces and the fixed connecting piece are connected by a pin, and the movable ring is closed and the movable connecting piece is connected to the pin by at least one of the leg piece and the fixed connecting piece excluding the movable connecting piece. At this time, the movable connecting piece is latched after being spread by the movable connecting piece, and a stop spring for releasing the movable connecting piece when it is spread is fixed.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION A fixed portion 1 is composed of a leg piece 2 and an upper part 4 which are integrally formed, and a pin hole 3 is formed through the opposing leg piece 2. The upper part 4 is formed in a frame shape, and both lower end parts are inclined inward and continue to the leg piece 2. In the figure, the interval between the leg pieces 2 is shown larger than the actual one in order to make the configuration easy to understand, but this interval may be arbitrarily set and may be smaller than the figure.

A nut 6 for attaching to a suspension bolt 23 is inserted through a nut hole formed through the top plate 5 of the upper part 4 so as to be able to move up and down slightly. Reference numeral 7 denotes a locking projection formed by caulking, which prevents the nut 6 from falling below the lower limit. Numeral 8 denotes a nut 6 for retaining. When the nut 6 is slightly moved up and down, the nut 6 is easily screwed to the suspension bolt 23 fixed to a ceiling or the like (not shown).

Reference numeral 9 denotes a pipe mounting portion, which is a fixed connecting piece 11
And a fixed ring 1 having a semi-annular fixed ring 10 integrally protruding therefrom and a movable connecting piece 13 integrally protruding from the upper end.
0 and a symmetrical semi-annular movable ring 12. Reference numeral 14 denotes a hinge, which pivotally connects the lower ends of the rings 10 and 12. In addition, the structure of the hinge 14 is not limited to the illustrated one, and, for example, piping work takes time, but the movable ring 12 can be locked and opened to the fixed ring 10. Pin holes 3 which are concentric with the leg pieces 2 are also provided through both connecting pieces 11 and 13.

A stop spring 15 is formed in a substantially U-shape by a leaf spring, as shown in detail in FIG. Reference numeral 17 denotes a ring formed at the center of the base 16 with burrs protruding from a hole, and provided with an internal thread 18 on the inner peripheral surface. Numeral 20 denotes a stopper, which is formed by making a cut in the vertical direction at the tip of both legs 19, making the cut a chord, and projecting an arc portion toward the tip (to the right in FIG. 3) in a semicircular shape. . That is, the distance between the opposing stoppers 20 gradually decreases toward the cut, and after the cut, the distance between the legs 19 becomes the same.

The stop spring 15 is attached as follows. That is, when the base portion 16 is located between the two leg pieces 2 of the fixed portion 1 and the bolt 21 is used as a pin, the bolt head 22 is set outside the fixed connection piece 11 and the fixed connection piece 1
The bolt 21 is inserted through the pin hole 3 of the leg piece 1 and the two leg pieces 2, and the bolt 21 is screwed and fixed to the female screw 18 of the ring 17. Thus, the fixing part 1 and the pipe mounting part 9 are connected and fixed,
The movable ring 12 is in a free state as shown by the imaginary line in FIG. 1 and can be opened and closed about a hinge 14 as an axis.

Therefore, as shown in FIG. 1, first, a nut 6 is screwed to a suspension bolt 23 fixed to a ceiling (not shown), and a pipe fitting is fixed to the suspension bolt 23 as shown in FIG. Next, the movable ring 12 is rotated so that the tube 24 is sandwiched between the two rings 10 and 12, and the pin hole 3 of the movable connection piece 13 is inserted into the bolt 21. When the movable connecting piece 12 hits the stopper 20,
Since both legs 19 of the stop spring 15 are opened, when the movable connecting piece 13 is pushed into the bolt 21 against the spring force, the movable connecting piece 13 is locked at the cut at the tip of the stopper 20. Therefore, the tube 24 is clamped and fixed between the rings 10 and 12.

Conversely, when the two legs 19 of the stop spring 15 are opened and the fixed connecting piece 11 is pulled out from the bolt 21, the pipe 2
The fixation of 4 is released.

When the bolt 21 is tightened, the retaining spring 15 is brought into contact with the fixed connecting piece 11 by the leg piece 2.
However, if it is other than the movable connecting piece 13, it is fixed to one of the leg pieces 2 or the fixed connecting piece 11 or the leg piece 2.
It is optional to fix the space between the fixed connection piece 11 and the like.

Also, without using the bolt 21 as a pin,
A male screw is provided on a part of the pin, and this male screw is
May be screwed on. In order to fix the stop spring 15 to the leg piece 2, the fixed connecting piece 11, or the like, or a pin, a means such as welding may be used.

Further, the stopper 20 of the stop spring 15
The movable ring 12 is closed and the movable connecting piece 13 is locked and fixed, and the legs 19 are pushed open to release the locking of the movable connecting piece 13, so that the structure is not limited. For example, it is also possible to form the stopper 20 by bending each of the legs 19 inward. When the movable ring 12 is closed, the movable connecting piece 1
It is possible to prevent the bolt 3 from being inserted into the bolt 21, but this is not preferable in terms of strength.

[0020]

According to the present invention, the pipe can be clamped simply by closing the open movable ring and locking the movable ring to the stopper of the stop spring without using a nut. It is planned.

[Brief description of the drawings]

FIG. 1 is a front view.

FIG. 2 is a side view.

FIG. 3 is an enlarged end view showing a state where a stop spring is attached.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Fixed part 2 Leg piece 9 Pipe mounting part 10 Fixed ring 11 Fixed connection piece 12 Movable ring 13 Movable connection piece 15 Stop spring 20 Stopper 21 Bolt (pin) 24 Pipe

Claims (2)

[Claims] 1. A fixing device comprising a fixing portion and a tube mounting portion, wherein the fixing portion is provided with opposing leg pieces from an upper lower end having a nut screwed to a bolt fixed to an immovable portion. The lower end of a semi-circular fixed ring with a fixed connecting piece protruding from the upper end and the lower end of a semi-circular movable ring with a movable connecting piece protruding from the upper end move the pipe with the fixed ring. A movable ring is attached to at least one of the leg piece and the fixed connecting piece except for the movable connecting piece. When the movable connecting piece is connected to the pin by closing the pipe, the movable connecting piece is pushed out and spread, and then the movable connecting piece is locked. Utensils. 2. A pin is a bolt, and a female spring is provided at a base of a U-shaped stop spring, and the bolt is screwed to the female screw to be fixed to the leg on the fixed tie side. The pipe fitting according to claim 1, wherein a stopper is provided on the leg.