JP4254973B2 - Temporary fixing device for movable piping members - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a temporary fixing device that temporarily controls the movement of a movable part of a movable piping member used as a kind of piping member such as a water pipe or a gas pipe.
[0002]
[Prior art]
In order to prevent the expansion / contraction flexible pipe A, which is a movable pipe member including a movable part, from being bent by its own weight or extending the pipe length when it is lifted at the time of transportation or pipe connection, for example, A temporary fixing device B developed by the applicant shown in FIG. 8 is used.
[0003]
The telescopic flexible tube A includes a slide pipe C on which a stopper D is formed, a ball body E whose outer peripheral surface is formed in a spherical shape and is externally fitted to the slide pipe C through a packing so as to be slidable in the axial direction; A spherical portion having the same diameter as that of the outer peripheral surface of the ball body E is formed on the inner peripheral surface, and a flange F is formed on the ball body E so as to be slidable in each direction through packing and connected to the piping material. It is comprised by the case body G made.
[0004]
Each member of the telescopic flexible tube A is assembled in a watertight manner through packing, and is connected to the flange F by sliding the slide pipe C and the ball body E, or the ball body E and the case body G. It is possible to absorb expansion and contraction of the pipe material in the tube axis direction and eccentricity in the direction perpendicular to the tube axis.
[0005]
The temporary fixing device B includes a fixing bolt H, a fixing piece I, and a nut J, and the fixing piece I protrudes symmetrically in a side view in a side view at a relative position of the outer peripheral surface of the case body G. Fixing bolts H, each having a threaded portion K formed on both ends, are fitted in opposing engaging pieces M in engaging grooves M that open outwardly and are fixed by nuts J through washers. Has been.
[0006]
[Problems to be solved by the invention]
In such a conventional temporary fixing device, the fixing bolt is fitted into the engaging groove that opens outward, and is tightened with the nut and attached to the fixing piece. Therefore, the nut is loosened due to vibration during transportation or the like. Then, the fixing bolt may fall off from the opening of the engaging groove. In particular, if the telescopic flexible tube is dropped during transportation or piping work, it may fall and cause injury to the worker.
[0007]
The problem to be solved by the present invention is to solve the above-mentioned problems, and is to provide a temporary fixing device that can be easily attached to and detached from a fixing piece and has no danger.
[0008]
[Means for Solving the Problems]
In order to solve the above-mentioned problem, the temporary fixing device of the present invention is provided with a fixing piece formed with an engaging groove that opens outwardly and protruding before and after a movable part of a movable piping member having a movable mechanism. A temporary fixing device in which a member is fitted in the engaging groove and fixed to a fixing piece with a fixing member,
Wherein the fixing piece, the engaging groove falling falling prevention portion is provided to prevent the bridge member from the falling prevention portion is smaller tapered section towards the back from the opening of the engagement groove It is comprised by the shape of the said fixed piece formed in (3).
Due to this feature, as a function of the temporary fixing device, the fixing piece prevents the bridging member from falling off, so that the falling of the bridging member is hindered to be safe.
[0011]
Further, the drop-off prevention part is formed in a tapered cross section in which the shape of the fixed piece becomes smaller from the opening of the engagement groove toward the back, so that the bridging member is fitted to the engagement groove and attached to the fixed piece. Later, even when the fixing member is loosened, the bridging member is prevented from dropping from the engagement groove by the contact of the fixing member with the high surface of the opening end of the fixing piece.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings.
[0013]
1 to 4 show Reference Example 1 , wherein 1 is an elastic flexible tube as a movable piping member, and 2 and 2 are connected to each end of a water pipe or the like via a flange 2a at the base. A pair of case bodies 3, 3 and 3 are ball bodies whose outer peripheral surfaces are formed in a spherical shape, 4 is a slide pipe inserted into the ball body 3, and 5 and 5 are fixing bolts (bridging members).
[0014]
The mutually opposing parts of the case body 2 are open, and the inside is formed in a substantially spherical shape. A diameter-enlarged recess is formed on the inner surface of the opening end, and a ball body 3 is slidably fitted in each case body 2 via a packing 2b attached to the diameter-enlarged recess.
[0015]
Annular grooves in the pusher wheel 6 are fitted into a plurality of inwardly directed pieces formed at equal intervals in the circumferential direction at the tip of each case body 2 and are prevented from rotating by a set screw.
[0016]
The inner surface of the press wheel 6 is in surface contact with the outer peripheral surface of the ball body 3 so as to be slidable.
[0017]
A slide pipe 4 is slidably inserted into an opposing end portion of each ball body 3 via a packing 3 a mounted in a concave groove on the inner surface of the ball body 3.
[0018]
A stopper ring 7 with a part cut in the circumferential direction is fitted into the annular concave grooves formed on the outer peripheral surfaces of both ends of the slide pipe 4 and fixed by fastening bolts. The stopper ring 7 is in contact with the stepped portion of the inner surface intermediate portion of the ball body 3 so that the stopper and the maximum extension amount are regulated.
[0019]
Two protruding stoppers 4 a are formed on the outer peripheral surface of the center side of the slide pipe 4. The stopper 4a comes into contact with the opposing end surface of the ball body 3 so that the maximum relative degeneration amount between the ball body 3 and the slide pipe 4 is regulated.
[0020]
At a relative position on the outer peripheral surface of the case body 2, a fixing piece 8 formed with an engagement groove 8 a into which the fixing bolt 5 is fitted is provided so as to project symmetrically in a side view. The fixing piece 8 protrudes substantially perpendicular to the tube axis, the engaging groove 8a opens in the horizontal direction, and the width thereof is formed larger than the outer diameter of the fixing bolt 5. Protrusions 8b project from both ends of the engaging groove 8a at the end of the fixed piece 8.
[0021]
Fixing bolts 5 having threaded portions 5 a formed at both ends are fitted into the engaging grooves 8 a of the fixing pieces 8 on the opposing fixing pieces 8 of each case body 2, and nuts ( It is fixed by fixing members 9 and 10.
[0022]
The fixing bolt 5 is attached by first screwing the nut 10 into the threaded portion 5a, externally fitting the two washers 11, and further screwing the nut 9. Next, the interval between the nuts 9 and 10 is adjusted to be slightly larger than the thickness of the convex portion 8 b of the fixed piece 8, and the threaded portion between the nuts 9 and 10 is fitted into the engagement groove 8 a of the fixed piece 8. Then, the nuts 9 and 10 positioned inside and outside the fixing piece 8 are tightened to finish fixing the fixing bolt 5 to the fixing piece 8.
[0023]
To remove the fixing bolt 5 after completion of the piping of the telescopic flexible tube 1, loosen the nuts 9 and 10, take an interval not coming into contact with the convex portion 8 b, and move the fixing bolt 5 in the opening direction of the engaging groove 8 a. Done.
[0024]
Even when the nuts 9 and 10 are somewhat loosened when the telescopic flexible tube 1 is being transported with the fixing bolt 5 attached, the fixing bolt 5 does not fall because the washer 11 contacts the convex portion 8b.
[0025]
Since the fixing bolt 5 is fitted in the engaging groove 8a opened outward, the fixing piece 8 can be moved without greatly moving the nuts 9 and 10 sandwiching the fixing piece 8 or removing from the screw portion 5a. Can be attached to and detached from.
[0026]
FIG. 5 shows the fixed piece 8 of Reference Example 2 , which is used for the telescopic flexible tube 1 configured in the same manner as in Reference Example 1 .
[0027]
The fixing piece 8 is provided with an engaging groove 8 a that fits the fixing bolt 5 on the outer peripheral surface of the case body 2.
[0028]
A substantially circular recess 8c that is slightly larger than the outer shape of the washer 11 having the same center as the engaging groove 8a is formed on one surface of the fixing bolt 5 in the axial direction of the fixing bolt 8.
[0029]
Fixing bolts 5 having screw portions 5a formed at both ends are fitted to the fixing pieces 8 facing each case body 2 and fitted into the engaging grooves 8a of the fixing pieces, and nuts are provided via washers 11 engaged with the recesses 8c. 9 and 10 are fixed.
[0030]
The fixing bolt 5 is attached by first screwing the nut 10 into the threaded portion 5a, externally fitting the two washers 11, and further screwing the nut 9. Next, the interval between the nuts 9 and 10 is adjusted to be slightly larger than the thickness of the fixed piece 8, and the thread portion between the nuts 9 and 10 is fitted into the engagement groove 8 a of the fixed piece 8. Then, the washer 11 is engaged with the recess 8c, and the nuts 9 and 10 positioned inside and outside the fixing piece 8 are tightened to finish fixing the fixing bolt 5 to the fixing piece 8.
[0031]
To remove the fixing bolt 5 after completion of the piping of the telescopic flexible tube 1, the nuts 9 and 10 are loosened and the fixing bolt 5 is moved in the opening direction of the engaging groove 8a.
[0032]
When the telescopic flexible tube 1 is transported with the fixing bolt 5 attached, even if the nuts 9 and 10 are loosened somewhat, the fixing bolt 5 will not fall because the washer 11 contacts the wall of the recess 8c. .
[0033]
Since the fixing bolt 5 is fitted in the engaging groove 8a opened outward, the fixing piece 8 can be moved without greatly moving the nuts 9 and 10 sandwiching the fixing piece 8 or removing from the screw portion 5a. Can be attached to and detached from.
[0034]
FIG. 6 shows a fixed piece 8 of Reference Example 3 , which is used for the flexible flexible tube 1 configured in the same manner as Reference Example 1 .
[0035]
The fixing piece 8 is formed with an engaging groove 8 a into which the fixing bolt 5 is fitted, and protrudes from the outer peripheral surface of the case body 2.
[0036]
The engagement groove 8a is inclined 45 degrees and the opening is formed facing upward. As shown in FIG. 5B, the opening may face the vertical direction.
[0037]
Fixing bolts 5 are fixed to the opposing fixing pieces 8 of each case body 2 in the same manner as in the reference example .
[0038]
Attachment and removal of the fixing bolt 5 are performed in the same manner as in Reference Example 2 .
[0039]
Even when the nuts 9 and 10 are somewhat loosened when the telescopic flexible tube 1 is transported with the fixing bolt 5 attached, the opening of the engaging groove 8a faces upward so that the fixing bolt 5 is engaged. Since it abuts on the groove 8a, the fixing bolt 5 does not fall.
[0040]
Since the fixing bolt 5 is fitted in the engaging groove 8a opened outward, the fixing piece 8 can be moved without greatly moving the nuts 9 and 10 sandwiching the fixing piece 8 or removing from the screw portion 5a. Can be attached to and detached from.
[0041]
Figure 7 shows the fixing piece 8 of the real施例of the present invention, used in the expansion flexible tube 1 constructed in the same manner as in Reference Example 1.
[0042]
The fixing piece 8 is formed with an engaging groove 8 a into which the fixing bolt 5 is fitted, and protrudes from the outer peripheral surface of the case body 2.
[0043]
The cross-sectional shape of the fixed piece 8 is formed in a tapered shape with a thick tip end and a thin case body 2 side.
[0044]
Fixing bolts 5 are fixed to the opposing fixing pieces 8 of each case body 2 in the same manner as in the reference example .
[0045]
Attachment and removal of the fixing bolt 5 are performed in the same manner as in Reference Example 2 .
[0046]
When the telescopic flexible tube 1 is transported with the fixing bolt 5 attached, even if the nuts 9 and 10 are loosened somewhat, the washer 11 comes into contact with the taper surface of the end of the fixing piece 8 so that the fixing bolt 5 falls. Never do.
[0047]
While the embodiments of the present invention have been described with reference to the drawings, the specific configuration of the present invention is not limited to this.
[0048]
In the embodiment, the fixing piece provided on the case body is integrally formed. However, the fixing piece may be manufactured separately and attached detachably.
[0049]
Moreover, although the fixed piece is provided in two places symmetrically, you may provide in three places or four places symmetrically about an axis.
[0050]
Although the connection part with the piping member of a case body is formed in the flange, an insertion port, a receiving port, or a groove for welding may be sufficient.
[0051]
Although the example used for the telescopic flexible tube is shown, it may be used for a gate valve device in which a movable mechanism is provided on the left and right sides of the gate valve to form a connection portion.
[0052]
【The invention's effect】
According to the present invention, as a function of the temporary fixing device, the fixing piece prevents the bridging member from falling off, so that the falling of the bridging member is hindered to be safe.
[0055]
Even if the fixing member loosens after the bridging member is fitted in the engaging groove and attached to the fixing piece, the fixing member comes into contact with the high surface of the opening end of the fixing piece, so that the bridging member is engaged. Falling from the groove is prevented.
[0056]
[Brief description of the drawings]
FIG. 1 is a front view showing Reference Example 1 of the present invention.
FIG. 2 is a side view of the same.
FIG. 3 is a cross-sectional view taken along the line II.
4A is a side view, FIG. 4B is a plan view, and FIG. 4C is a central sectional view.
5A and 5B are fixed pieces showing Reference Example 2 of the present invention, in which FIG. 5A is a side view, FIG. 5B is a plan view, and FIG. 5C is a central sectional view.
FIGS. 6A and 6B are side views of a fixing piece showing Reference Example 3 of the present invention, in which FIG. 6A shows an opening at a 45-degree direction, and FIG. 6B shows an opening at a 90-degree direction.
[Figure 7] is a fixed piece showing the actual施例of the present invention, (a) is a side view, (b) is a plan view, the (c) is a cross-sectional side view.
8A is a front view, FIG. 8B is a side view, and FIG. 8C is an enlarged sectional view showing a conventional example.
[Explanation of symbols]
1 Telescopic flexible pipe (movable piping member)
2 Case body 2a Flange 2b Packing 2c Hanging bracket 3 Ball body 3a Packing 4 Slide pipe 4a Stopper 5 Fixing bolt (cross-linking member)
5a Screw part 6 Push ring 7 Stopper ring 8 Fixing piece 8a Engaging groove 8b Convex part 8c Concave part 9 Nut (fixing member)
10 Nut (fixing member)
11 Washer (fixing member)

Claims (1)

A fixed piece formed with an engaging groove that opens to the outside protrudes from the front and rear of the movable portion of the movable piping member having a movable mechanism, and a bridging member is fitted into the engaging groove and fixed to the fixed piece. A temporary fixing device fixed by
Wherein the fixing piece, the engaging groove falling falling prevention portion is provided to prevent the bridge member from the falling prevention portion is smaller tapered section towards the back from the opening of the engagement groove The temporary fixing device is configured by the shape of the fixing piece formed on the surface.

Images