JPH06337082A - Fixing device for sprinkler piping - Google Patents

Abstract

PURPOSE:To ensure the sturdy and easy fixture of sprinkler piping by applying the constitution where clamping pieces having an insertion hole for a support member to be extended between ceiling holding members and clamping the piping with a tightening screw, are separated from each other by a distance almost equal to or greater the outer diameter of the piping via a tightening screw holding section. CONSTITUTION:A fastener 3 is formed out of the first and second clamping pieces 5 and 6 laid in such a way as faced to each other for clamping a sprinkler head fitting tube 4. Both pieces 5 and 6 are made of a strip type iron plate, and form an insertion hole 7 for passing a support member 1 extended between ceiling holding members. Furthermore, one lengthwise end of the piece 5 is bent for use as the engagement piece 8 of the second clamping piece 6. The bent section is provided with a projection 9. One end of the piece 6 is also bent for used as an engaged piece 10 and provided with a coupling hole for the projection 9. Thus, the clamping pieces 5 and 6 can be coupled to and separated from each other via the projection 9 and the coupling hole. Furthermore, the other ends of the pieces 5 and 5 are provided with holding sections 12 and 14 and a tightening screw 16 is screwed thereto for tightening and fixing a fitting tube 4.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fixing device for a sprinkler pipe arranged on the ceiling.

[0002]

2. Description of the Related Art Conventionally, as a sprinkler pipe,
A straight pipe obtained by cutting a steel pipe into about 30 to 60 cm and an elbow joint were appropriately added, but recently, in order to facilitate the construction, a sprinkler head is attached to one end of a bendable flexible pipe. The thing which connected the attachment pipe for attachment has come to be used. The sprinkler pipe configured with a flexible pipe needs to be fixed more firmly than the conventional sprinkler pipe formed by adding steel pipes, and there is a sprinkler pipe fixing device suitable for it as shown in FIG. 11. To do. This fixing device includes a support member 1, a fixing fitting 20, and a tightening screw 16.

The support member 1 is installed between ceiling plate holding members (not shown) provided in parallel at a predetermined interval, and both ends thereof are attached by mounting metal fittings (not shown). Fixed to.

The fixing member 20 is formed by connecting a pair of holding pieces 20a. 20a facing each other so as to hold the sprinkler pipe, more specifically, the mounting pipe 4 of the sprinkler head, with a connecting piece 20b. The holding member 20a, 20a has a support member 1
Insertion holes 21 and 21 are provided as insertion portions through which the. That is, the fixing member 20 is supported by installing the support member 1 inserted through the insertion holes 21, 21 of the fixing member 20 between the ceiling plate holding members. Further, tightening screw holding portions 22, 22 are connected to one end of the sandwiching pieces 20a, 20a so as to reduce the facing interval. One tightening screw holder 22
Has a screw hole in which a female screw is engraved, and the other tightening screw holding portion 22 has a through hole.

The tightening screw 16 comprises a head portion 16a and a shaft portion 16b, and a male screw is engraved on the outer periphery of the shaft portion 16b. The tightening screw 16 penetrates through the through holes of the tightening screw holding parts 22, 22 of the fixing fitting 20 from the tip side of the shaft part 16b, and is screwed into the screw holes to be held by the tightening screw holding parts 22, 22. By tightening the tightening screw 16, the clamping pieces 20a, 20a come close to each other and clamp the mounting tube 4.

The fixing of the mounting pipe 4 using this fixing device will be roughly described. First, the support member 1 inserted through the insertion holes 21, 21 of the fixing metal fitting 20 is fixed between the ceiling plate holding members using the mounting metal fitting. To be installed. Next, the mounting pipe 4 is inserted from above between the sandwiching pieces 20a.20a of the fixture 20. And tightening screw
When 16 is tightened, the clamping pieces 20a.20a come close to each other, and as a result, the mounting tube 4 is clamped. In this way, the mounting pipe 4 can be firmly fixed by sandwiching the mounting pipe 4 with the sandwiching pieces 20a. 20a.

[0007]

By the way, in order to dispose the sprinkler head at a predetermined position on the ceiling, the mounting pipe 4
The work of fixing the is done at a high place. That is, the work is performed in an unstable state by climbing up to a standing stepladder. At that time, in the fixing device described above, the mounting pipe
It is necessary to guide 4 from above the fixing bracket 20 to pass it between the clamping pieces 20a.20a, but it is not easy to perform such work in an unstable state, and the risk of work increases. There is a high possibility that it may lead to a fall accident.

The present invention has been made in view of the above reasons.
It is an object of the invention to provide a fixing device for a sprinkler pipe, which can firmly and easily fix the sprinkler pipe.

[0009]

In order to achieve the above object, a fixing device for a sprinkler pipe according to a first aspect of the present invention is a support installed between ceiling plate holding members provided in parallel at predetermined intervals. A member, an insertion part through which the support member is inserted, and a tightening screw holding part, and a pair of opposed clamping pieces that are connected to each other so as to sandwich the sprinkler pipe. A sprinkler pipe including a fixing metal fitting formed to have a small facing distance and a tightening screw held by a tightening screw holding portion of the fixing metal fitting, which brings the pair of clamping pieces close to each other by tightening. In the fixing device, the fixing fitting is formed so that the tightening screw holding portion can be separated from the sprinkler pipe by substantially the outer diameter or more.

The fixing device for a sprinkler pipe according to a second aspect of the present invention is configured such that the fixing metal member according to the first aspect connects a pair of holding pieces so that they can be joined and separated.

According to a third aspect of the present invention, there is provided a fixing device for a sprinkler pipe according to the second aspect of the present invention, wherein the one end of one holding piece of the fixing metal fitting is provided with an engaging portion and the other end of the other holding piece is provided. It is configured such that a locked portion for locking the locking portion is provided.

According to a fourth aspect of the present invention, there is provided a fixing device for a sprinkler pipe, wherein the engaging portion of the fixing metal fitting according to the third aspect is:
The engaging portion is formed of a locking piece that has a protrusion and is continuously provided to the end portion of one of the sandwiching pieces, and the locked portion has a fitting portion into which the protruding portion is inserted and is continuously provided to the end portion of the other sandwiching piece. It is configured with a locked piece.

According to a fifth aspect of the present invention, there is provided a fixing device for a sprinkler pipe according to the third aspect, wherein a locking hole is provided in the locked portion of the fixing metal fitting, and the locking portion is inserted into the locking hole. It is configured to have a locking protrusion that locks.

According to a sixth aspect of the present invention, there is provided a fixing device for a sprinkler pipe according to the first aspect of the present invention, in which the fastening screw holding portion of one of the holding pieces of the fixing fitting is configured to rotatably support the fastening screw. The shaft is provided, and the clamping screw holding portion of the other sandwiching piece is provided with a screw receiving portion that removably receives the rotating clamping screw.

[0015]

According to the structure of the present invention, since the fixing metal fitting is formed so that the tightening screw holding portion thereof can be separated from the sprinkler pipe by substantially the outer diameter or more, the sprinkler pipe can be guided from the lateral side. You can pass it in between.

Further, according to the structure of claim 2, in addition to the function of claim 1, the fixing metal fitting connects the pair of sandwiching pieces so that they can be joined and separated from each other, so that the tightening screw holding portion is formed. It is possible to easily realize a configuration in which the pipe can be separated by more than the outer diameter of the sprinkler pipe.

According to the third aspect of the present invention, in addition to the function of the second aspect, an engaging portion is provided at an end of one holding piece of the fixing metal fitting, and an end of the other holding piece is provided. Since the locked portion to which the locking portion is locked is provided in the portion, the pair of sandwiching pieces are easily coupled and separated.

According to the structure described in claim 4, in addition to the function described in claim 3, the locking portion of the fixing metal fitting has the projection and is continuously provided to the end of one of the sandwiching pieces. The locking piece is formed of a locking piece, and the locked portion is a locking piece that has a fitting portion into which the protrusion fits and is provided continuously to the end portion of the other sandwiching piece. Tighten the tightening screw in the state where they are overlapped with each other, and the clamping pieces are connected.

According to the structure of claim 5, in addition to the function of claim 3, a locking hole is provided in the locked part of the fixing metal fitting, and the locking part is inserted into the locking hole. Since the locking projections are provided for locking, the holding projections are locked in the locking holes so that the sandwiching pieces are joined.

According to the structure of claim 6, in addition to the effects of claims 1 to 5, the tightening screw is rotatably supported by the tightening screw holding portion of one of the holding pieces of the fixing metal fitting. In addition to providing a rotating shaft, the clamping screw holding portion of the other clamping piece is provided with a screw receiving portion that removably receives the rotating clamping screw, so that the clamping screw is retained in the clamping screw retaining portion of the fixing bracket. As it is, the sprinkler pipe can be guided from the side and passed between the sandwiching pieces.

[0021]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described below with reference to FIGS. In addition, the same code | symbol is attached | subjected to the member with the same basic function as the conventional thing. This sprinkler pipe fixing device includes a support member 1, a fixing bracket 3, and
And a tightening screw 16.

The support member 1 is installed between ceiling plate holding members 2, 2 which are provided in parallel at a predetermined interval, and both ends thereof are attached to the ceiling plate holding members 2, 2 by mounting fittings (not shown). Fixed to 2.

The fixing member 3 is composed of first and second holding pieces 5 and 6 facing each other so as to hold the sprinkler pipe, more specifically, the mounting pipe 4 of the sprinkler head. The first and second sandwiching pieces 5 and 6 are made of a substantially strip-shaped iron plate, and have insertion holes 7 and 7 each having a larger area than the cross-sectional area of the support member 1 as an insertion portion through which the support member 1 is inserted. . In other words, by installing the support member 1 inserted through the insertion holes 7 and 7 of the fixing bracket 3 between the ceiling plate holding members 2 and 2,
Is supported.

The first and second holding pieces 5 and 6 are connected so that they can be combined and separated. Specifically, the first sandwiching piece 5
Is bent at one end in the longitudinal direction, and a second holding piece 6 to be described later is formed.
Is a locking piece 8 that is a locking portion that locks to the locked portion. The locking piece 8 is provided with a protrusion 9. The second holding piece 6 is bent at one end in the longitudinal direction to form a locked piece 10 which is a locked portion to which the locking portion of the first holding piece 5 is locked. The locked piece 10 is provided with an opening 11 as a fitting portion into which the protrusion 9 of the locking piece 8 is fitted.

The locking piece 8 and the locked piece 10 connect the first and second sandwiching pieces 5 and 6 as follows. That is, the tightening screw 16 described later is tightened in a state where the locking piece 8 and the locked piece 10 are overlapped with each other so that the protrusion 9 fits into the opening 11. At this time, first and second tightening screw holding portions 12 and 14 on the opposite side of the locking piece 8 and the locked piece 10 come close to each other, while the locking piece 8 and the locked piece 10 separate from each other. Try to displace in the direction, but at that time, the locking piece
Since the protrusion 9 of 8 is locked to the peripheral edge of the opening 11 of the locked piece 10, the locking piece 8 and the locked piece 10 are eventually engaged. As a result, the first and second holding pieces 5 and 6 are in a connected state. On the contrary, in order to separate the first and second holding pieces 5 and 6, the tightening screw 16 may be loosened. That is,
Since the first and second holding pieces 5 and 6 are combined and separated as the tightening screw 16 is tightened or loosened, the labor of connection and separation can be omitted.

Further, the other ends of the first and second holding pieces 5 and 6 are curved so that the facing distance becomes small, and the first and second tightening screw holding portions 12 and 14 are connected from there. That is, the first clamping piece 5 has the first tightening screw holding portion 12
The clamping pieces 6 are respectively provided with second tightening screw holding portions 14. The first and second tightening screw holding portions 12 and 14 can be separated from each other by substantially the outer diameter of the mounting pipe 4 or more because the first and second holding pieces 5 and 6 can be joined and separated. That is, when fixing the mounting tube 4 by sandwiching it between the first and second clamping pieces 5 and 6, it is possible to guide the mounting tube 4 from the side between the first and second clamping pieces 5 and 6, and thus to pass it. The mounting tube 4 can be firmly and easily fixed.

The second tightening screw holding portion 14 has a rotary shaft 15 which rotatably supports the tightening screw 16. Axis of rotation
The intermediate portion of 15 is spread slightly flat and provided with a screw hole in which a female screw is engraved. The rotary shaft 15 is rotatably attached by lightly caulking the shaft portions on both sides of the screw hole at the ends of the second tightening screw holding portion 14.
The first tightening screw holding portion 12 has a shaft portion of a tightening screw 16, which will be described later, which is supported by the rotating shaft 15 and rotates by notching inward from one end thereof in a substantially slit shape.
A screw receiving portion 13 that receives the 16b in a removable manner is provided.

By constructing the first and second tightening screw holding portions 12 and 14 as described above, when the mounting pipe 4 is guided from the side and is passed between the first and second clamping pieces 5 and 6, It is not necessary to remove the tightening screw 16, it is only necessary to rotate the tightening screw 16. Therefore, the work of attaching and detaching the tightening screw 16 can be omitted, and the fixing work of the mounting pipe 4 can be promptly advanced. Further, the possibility of losing the tightening screw 16 is reduced.

The tightening screw 16 is composed of a head portion 16a and a shaft portion 16b, and a male screw is engraved on the outer circumference of the shaft portion 16b. This tightening screw 16 is the second tightening screw holding part of the fixture 3.
It is held by being screwed into a female screw of a rotary shaft 15 attached to 14. Further, the tightening screw 16 rotates with the rotation of the rotary shaft 15, and the screw receiving portion of the first tightening screw holding portion 12
It can be freely inserted into and removed from 13. Then, the first and second clamping pieces 5 and 6 are brought close to each other and clamp the mounting tube 4 by tightening the screw receiving section 13 in a fitted state.

The outline of the fixing work of the mounting pipe 4 using this fixing device will be described. First, the first and second fixing metal fittings 3 are fixed.
The support member 1 inserted into the insertion holes 7 and 7 of the holding pieces 5 and 6 is installed between the ceiling plate holding members 2 and 2 by using a mounting bracket. next,
Guide the mounting tube 4 laterally between the first and second clamping pieces 5,6,
The locking piece 8 and the locked piece 10 of the first and second holding pieces 5 and 6 are superposed so that the projection 9 of the locking piece 8 fits into the opening 11 of the locked piece 10. Next, the tightening screw 16 is rotated and fitted into the screw receiving portion 13. Then, by tightening the tightening screw 16, the first and second sandwiching pieces 5 and 6 are brought close to each other, and the mounting tube 4 is sandwiched and firmly fixed. Conversely, the mounting pipe
To remove 4 from the fixing device, loosen the tightening screw 16 and rotate it so that it is separated from the screw receiving portion 13, and then the first and second clamping pieces.
By separating 5,6, it can be guided to the side and removed.

The rotation shaft of the second tightening screw holding portion of the fixing member is, for example, a hanging piece of a T-shaped member on which a male screw is engraved, and a female screw member is screwed onto the hanging screw to form a first screw. You may make it the 1st and 2nd clamping piece approach. Further, the first and second clamping pieces may be connected using, for example, a hinge so that the first and second tightening screw holding portions are separated from each other by the outer diameter of the sprinkler pipe or more. Further, the locking piece may be provided on the second sandwiching piece, and the locked piece may be provided on the first sandwiching piece. The point is that the locking piece and the locked piece are provided on one side and the other side. Good. First and second
The same applies to the tightening screw holder. As the tightening screw, for example, a wing screw or the like may be used, and in short, it is sufficient that the tightening screw includes a head portion that engages with the peripheral edge of the screw receiving portion and a shaft portion in which a male screw is engraved.

Next, a second embodiment of the present invention will be described with reference to FIGS.
A description will be given based on 0. The members having the same basic functions as those of the first embodiment are designated by the same reference numerals and the description thereof will be omitted.

Explaining the different parts, in the fixing fitting 3 of this fixing device, an end portion of the first holding piece 5 is bent to form a connecting piece 17. The connecting piece 17 is a locking portion that locks to the end of the second holding piece 6 that is the locked portion, and a locking projection 18 is provided at the tip. A locking hole 19 into which the locking projection 18 is inserted and locked is provided at the end of the second holding piece 6.

Specifically, the locking hole 19 includes an insertion portion 19a having a long length in the lateral direction and a retaining portion having a short length in the lateral direction.
The end portion of the second sandwiching piece 6 is cut out in a substantially convex shape in plan view so as to be formed of 19a. The locking protrusion 18 is a connecting piece 17.
Protrudes in a tongue shape in the extending direction and has a base end portion 18a and a tip end portion 18b. The distal end portion 18b is formed such that its length in the lateral direction is longer than that of the base end portion 18a and slightly longer than the insertion portion 19a of the locking hole 19. The corners of the tip portion 18b are tapered.

The locking projections 18 and the locking holes 19 connect the first and second sandwiching pieces 5 and 6 as follows. That is, the tip end portion 18b of the locking projection piece 18 is inserted into the insertion portion 19a of the locking hole 19, but the tip end portion 18b of the locking projection piece 18 is
Since it is longer than the insertion portion 19a, first, one end in the lateral direction of the tip portion 18b is passed through the insertion portion 19a, and then the other end is passed through the insertion portion 19a. At this time, since the corners in the lateral direction of the tip end portion 18b are tapered, the other end can be quickly inserted after the one end is inserted. The tip portion 18b of the locking projection piece 18 thus inserted is locked in the locking hole 19 in a loosely inserted state, and as a result, the first and second holding pieces 5,
6 joins. Also, the first and second clamping pieces 5, 6
In order to separate the two, it is sufficient to perform the reverse procedure of the combination.

The outline of the fixing work of the mounting pipe 4 using this fixing device will be explained.
And the support member 1 inserted through the insertion holes 7,7 of the second holding pieces 5,6.
Is installed between the ceiling plate holding members 2 and 2 by using a mounting bracket. Next, the mounting tube 4 is guided from the side between the sandwiching pieces. At this time, since the locking projection piece 18 of the first holding piece 5 is locked in the locking hole 19 of the second holding piece 6 in a loosely inserted state, the first and second holding pieces 5, 6 are joined together. The first and second tightening screw holding portions 12 and 14 can be separated from each other by more than the outer diameter of the mounting pipe 4 while keeping the same. Next, the tightening screw 16 is rotated and fitted into the screw receiving portion 13.
Then, by tightening the tightening screw 16, the first and second sandwiching pieces 5 and 6 are brought close to each other, and the mounting tube 4 is sandwiched and firmly fixed. On the contrary, in order to remove the mounting pipe 4 from the fixing device, the fastening screw 16 may be loosened and rotated so as to be separated from the screw receiving portion 13, and the first and second fastening screw holding portions 12 and 14 may be separated.

By the way, in the above procedure, the tightening screw
When tightening 16, tighten the lock protrusion 18 and lock hole.
First and second tightening screw holders 12, 14 on the opposite side of 19
While the locking protrusions 18 and the locking holes 19 tend to displace in a direction away from each other, as a result, the locking protrusions 18 are strongly locked to the peripheral edge of the locking hole 19 and are in the loose insertion state. The locking protrusion that fits
18 firmly engages with the locking hole 19. At this time, the locking projection 18
Is positioned so as to be locked to the peripheral edge of the retaining portion 19a of the locking hole 19, it is possible to prevent the locking projection 18 from coming off from the locking hole 19.

The locking projections and the locking holes respectively provided on the first and second sandwiching pieces of the fixing fitting are not limited to the above-described shapes, and in short, the locking projections are the locking holes. Anything that locks in the loosely inserted state may be used. Further, a locking hole may be provided in the connecting piece continuously provided at the end of the first holding piece, and a locking projection piece may be provided at the end of the second holding piece. Furthermore, the first
The connecting pieces may be connected to the ends of the second holding pieces.

[0039]

According to the fixing device for a sprinkler pipe according to the first aspect of the present invention, the fixing metal fitting is formed so that the fastening screw holding portion thereof can be separated from the sprinkler pipe by substantially the outer diameter or more. Therefore, the sprinkler pipe can be firmly and easily fixed.

The sprinkler pipe fixing device according to a second aspect of the present invention has the effect of the first aspect, and in addition to the effect of the first aspect, a fixing metal member is formed by connecting a pair of sandwiching pieces so that they can be joined and separated. It is possible to easily realize a configuration in which the screw holding portion can be separated from the sprinkler pipe by substantially the outer diameter or more.

In addition, in the fixing device for a sprinkler pipe according to a third aspect of the present invention, in addition to the effect of the second aspect, an engaging portion is provided at an end of one holding piece of the fixing metal fitting, and the other holding piece is held. Since the locked portion to which the locking portion locks is provided at the end of the piece, the pair of sandwiching pieces can be easily coupled and separated.

Further, in the fixing device for the sprinkler pipe according to the fourth aspect, in addition to the effect according to the third aspect, the engaging portion of the fixing metal fitting has a protrusion and is connected to the end portion of one sandwiching piece. Since the locked portion is a locked piece that has a fitting portion into which the protrusion fits and is connected to the end of the other sandwiching piece, the locked piece and the locked piece By tightening the tightening screw in the state where the locking pieces are overlapped with each other, and the sandwiching pieces are joined together, it is possible to save the labor of joining and separating the sandwiching pieces.

Further, in the fixing device for a sprinkler pipe according to a fifth aspect, in addition to the effect according to the third aspect, a locking hole is provided in the locked portion of the fixing metal fitting, and the locking portion is locked. Since the locking projections that are inserted through the holes and locked are provided, the holding pieces are connected by the locking projections being locked in the locking holes, and the sprinkler pipe is laterally connected while maintaining the connected state. It can be guided and passed between the sandwiching pieces.

According to the sixth aspect of the present invention, in addition to the effects of the first to fifth aspects, the sprinkler pipe fixing device rotates the tightening screw on the tightening screw holding portion of one of the holding pieces of the fixing metal fitting. In addition to providing a rotatable shaft that can be supported, the clamping screw holding part of the other clamping piece is provided with a screw receiving part that removably receives the rotating clamping screw. The sprinkler pipe can be guided from the side while being held and passed between the sandwiching pieces, and the labor of attaching and detaching the tightening screw to the tightening screw holding portion can be omitted.

[Brief description of drawings]

FIG. 1 is a plan view showing a first embodiment of the present invention.

FIG. 2 is a perspective view of the fixing bracket.

FIG. 3 is a rear view of the fixing bracket.

FIG. 4 is a plan view showing a state in which a first sandwiching piece and a second sandwiching piece of the fixture are separated.

FIG. 5 is a side view showing a state in which the mounting pipe is fixed.

FIG. 6 is a perspective view of a fixing member showing a second embodiment of the present invention.

FIG. 7 is a side view of a second holding piece of the fixing fitting.

FIG. 8 is a rear view of the first holding piece of the fixing fitting.

FIG. 9 is a side view of a first holding piece of the fixing fitting.

FIG. 10 is a plan view showing a state in which the fastening screw holding portion of the first holding piece and the fastening screw holding portion of the second holding piece of the fixing bracket are separated from each other by an outer diameter of the mounting pipe or more.

FIG. 11 is a perspective view showing a conventional example.

[Explanation of symbols]

 1 Supporting member 2 Ceiling plate holding member 3 Fixing bracket 4 Mounting pipe 5 First holding piece 6 Second holding piece 7 Insertion hole 12 First tightening screw holding part 14 Second tightening screw holding part 16 Tightening screw

Claims (6)

[Claims] 1. A sprinkler pipe having a support member provided between ceiling plate holding members arranged in parallel at predetermined intervals, an insertion portion through which the support member is inserted, and a tightening screw holding portion, for sandwiching a sprinkler pipe. As described above, the pair of opposed sandwiching pieces are connected to each other, and the tightening screw holding portion is held by the fixing metal fitting formed so that the facing distance becomes small and the tightening screw holding portion of the fixing metal fitting. In the device for fixing a sprinkler pipe, which includes a tightening screw that brings a pair of sandwiching pieces closer to each other by tightening, the fixing metal member has a tightening screw holding portion separated from the sprinkler pipe by substantially the outer diameter or more. A fixing device for a sprinkler pipe, which is formed so as to obtain. 2. The fixing metal fitting connects a pair of holding pieces,
2. The connection is formed so as to be separable.
Fixing device for the sprinkler pipe described. 3. The holding member is provided with an engaging portion at one end of the sandwiching piece and an engaged portion with which the engaging portion is engaged is provided at an end of the other sandwiching piece of the fixing metal fitting. Claim 2
Fixing device for the sprinkler pipe described. 4. The locking portion of the fixing member is a locking piece that has a protrusion and is continuously provided at an end of one sandwiching piece, and the locked portion is a fitting portion into which the protrusion fits. 4. The sprinkler pipe fixing device according to claim 3, further comprising a locked piece that is provided continuously with the end of the other holding piece. 5. The locking hole is provided in the locked portion of the fixing member, and the locking portion is provided with a locking projection that is inserted into the locking hole and locked. 3. The sprinkler pipe fixing device as described in 3. 6. A fastening shaft holding portion of one of the holding pieces of the fixing metal fitting is provided with a rotary shaft for rotatably supporting the fastening screw, and a holding screw holding portion of the other holding piece is rotated. 6. The fixing device for a sprinkler pipe according to claim 1, further comprising a screw receiving portion that receives the tightening screw so that the screw can be freely inserted and removed.