JPH0796050A - Sprinkler piping and installation method of sprinkler piping - Google Patents

Abstract

PURPOSE:To facilitate sizing of a mounting position of a sprinkler head and a fixing operation by providing plural pieces of detaining recessed parts formed at a mounting pipe apart proper spaced intervals in its axial direction and executing mounting by selecting the detaining combinations of these detaining recessed parts with detaining projecting parts. CONSTITUTION:Channel steels 22 are disposing onto a ceiling substrate material 21 and a fixing material 23 is disposing to this channel steel 22. The mounting pipe 1 previously mounted with the sprinkler head 4 is mounted to a holding part 8 of a fixture 5 and a bent edge of this fixture 5 is hooked to a groove 2 disposed at the mounting pipe 1 in correspondence to the position where the sprinkler head 4 is mounted to the ceiling 20 in the case of mounting the sprinkler head 4 to this fixing material 23. Holding arms 10a, 10b are then hooked to the fixing material 23, and thereafter, a wedge-shaped tightening member 11 is driven by a hammer, etc., between the fixing member 23 and the hook parts of the holding arms 10a, 10b, by which the fixture 5 is fixed to the fixing material 23 and the mounting of the sprinkler head 4 is completed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fixing structure for a fire extinguishing sprinkler head mounting pipe and a fixing member which are provided on the ceiling of a building or the like, and a fixing method therefor.

[0002]

2. Description of the Related Art An example of a conventional fixing structure for a sprinkler head mounting tube is shown in Japanese Utility Model Publication No. 59-935. The fixing structure described in this publication relates to a structure in which a sprinkler head is attached to the tip of a sprinkler head attachment pipe that is branched from a main water supply pipe that is piped under the ceiling and is plumbed down. This is to attach the tip of the sprinkler head mounting pipe to the ceiling surface at a predetermined position, bridge the grooved steel on the ceiling base material that fixes the ceiling plate, and The fixing material is fixed, and the sprinkler head mounting pipe is fixed to the fixing material by a screw-fastening type fixing fitting.

[0003]

In the above fixing structure, the screw of the fixing metal fitting is tightened by tightening the screw of the fixing metal fitting with the tip of the sprinkler head mounting pipe (hereinafter referred to as the mounting pipe) set at a predetermined position with respect to the ceiling surface. Since the sprinkler head mounting pipe is fixed, there is a problem that it is troublesome to measure the dimensions of the tip of the mounting pipe and the ceiling surface. Actually, this dimensioning changes depending on the thickness of the ceiling plate and the shape size (type) of the sprinkler head.
The work at the site became more complicated. In addition, there is a problem that the mounting pipe moves from a predetermined position when the tightening of the screw of the fixing bracket is insufficient, the pressure in the pipe fluctuates suddenly, or a large external force acts on the mounting pipe.

The present invention solves the above problems,
(EN) Provided are a fixing structure of a sprinkler head mounting pipe and a fixing method for fixing a mounting position of a sprinkler head to a ceiling surface so that the mounting pipe does not move in an axial direction and a radial direction. The purpose is to

[0005]

First, a fixing structure of a sprinkler head mounting pipe and a fixing member of the present invention comprises a mounting pipe having a groove on an outer surface, a locking portion for locking at least a part of the groove, It comprises a fixture having a holding part for mounting and holding the mounting tube, a gripping part for mounting and gripping on the fixing material, and a tightening member. Further, a method of fixing a sprinkler head mounting pipe and a fixing member of the present invention is to mount the mounting pipe on a holding portion of the fixing member, and fix the fixing member to at least a part of a groove formed on an outer surface of the mounting pipe. After the formed locking portion is locked and the holding portion of the fixing tool is attached to the fixing material, the fixing tool, the mounting pipe and the fixing material are tightened and fixed to each other by the tightening member. .

In the above-mentioned fixing structure and fixing method, a plurality of grooves formed in the mounting pipe are provided at appropriate intervals in the axial direction, so that even if the mounting position of the sprinkler head on the ceiling surface changes, It is desirable to select a locking combination of the groove and the locking portion so that the locking combination can be adjusted to a predetermined position. Further, it is desirable to interpose a wedge-shaped tightening member between the fixing material and the grip portion.

[0007]

Since the present invention has the above-mentioned structure, the fitting tube can be naturally dimensioned by simply fitting the engaging portion of the fixing tool into the groove of the fitting tube and fixing it to the fixing material as it is. Moreover,
If a plurality of grooves are provided at appropriate intervals, the shape and size (type) of the sprinkler head, the thickness of the ceiling plate, etc. can be changed by selecting the most suitable combination of groove and locking part. The mounting pipe can be fixed in correspondence with a predetermined mounting position of the sprinkler head.

Further, the holding portion of the fixing tool holds the mounting tube so as to wrap it, and the groove is engaged with the engaging portion, and the gripping portion is attached to the fixing material. In this state, when a tightening member such as a wedge is driven between the fixing member and the holding portion, the fixing member, the mounting pipe and the fixing member are pressed against each other to exert a reaction force and firmly fixed. As a result, the mounting tube does not move either axially or radially. Furthermore, when the wedge angle is 10 degrees or less, the frictional force acting on the wedge surface is also large, and if the grip part is a hold arm shape, the elastic deformation also acts and the fixing loosens even if severe vibration is applied to the mounting pipe etc. There is no such thing.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. 1 to 3 show a first embodiment of the present invention, FIG. 1 is a perspective view showing a mounting state of a mounting pipe and a fixing member under the ceiling, FIG. 2 is a side view of a fixing portion, and FIG. 3 is a rear surface. It is a figure.
In FIG. 1, a flexible pipe 1b attached to a water distribution pipe branched from a main water supply pipe in the ceiling is connected to the attachment pipe 1 via a joint 1a. A female screw is provided at the tip of the mounting pipe 1, and an embedded sprinkler head 4 is screwed in. Then, the channel steel 22 is bridged on the ceiling base material 21 for fixing and suspending the ceiling 20, and further the fixing material 23 is bridged on the channel steel 22 and fixed by the mounting bracket 24. There is. The mounting pipe 1 is fixed to the fixing member 23 by using a fixing tool 5. As the fixing member 23, a grooved steel or the like is used in addition to the rectangular pipe as shown. The attachment pipe 1 can be made of a plastic pipe, a cast pipe, a joint, a combination thereof, or any other suitable material and shape. The upper end has a connection portion with the flexible tube 1b, and a connection portion with a screw connection or a mechanical joint is provided. A female thread is usually formed at the lower end, and the sprinkler head 4 is screwed in and attached. A groove 2 is provided on the outer surface, which is appropriately above the lower end. This groove can be formed integrally in the case of casting, or can be formed in the case of a steel pipe by a groove processing machine or the like which is commonly used in the field. Further, it is not necessary to provide it over the entire outer circumference, and it may be provided intermittently on a part of the outer surface.

Reference numeral 5 denotes a sheet metal fixture (hereinafter, a fixture may be a plastic material or the like), and a holding portion 8 for mounting and holding the attachment pipe 1 while crimping it.
The holding part 10 to be mounted on the fixing member 23, that is, the hold arm 10
It has a and 10b, and a locking portion that locks in the groove 2 of the mounting tube 1, that is, a bent edge 7. As shown in FIGS. 2 and 3, the lower end of the holding portion 6 is bent in a direction perpendicular to the inner side to form a bent edge, and the edge 7 is hooked in a range around the half circumference of the groove 2. When viewed from above, the fixing member 5 has a substantially U-shaped holding portion 8 and a holding portion 10 that follows the holding portion 8 and has a substantially U-shape. As shown in the figure, the side surface of the gripping portion 10 is formed by cutting out a substantially flat portion of the flat plate in accordance with the shape and size of the fixing material 23 so as to sandwich the fixing material 23.
a and 10b are formed, and the ends of the hold arms 10a and 10b are provided with bent hook portions 10c and 10d on the inside. Reference numeral 11 denotes a tightening member, which is a wedge member in the present embodiment in which both ends of the steel plate are bent at right angles and one surface in the longitudinal direction has a small inclination of about 10 ° or less. Alternatively, it may be wood or may not have any slope or taper.

Next, a method of fixing the mounting pipe 1 to the fixing member 23 will be described. First, the attachment pipe 1 to which the sprinkler head 4 is attached in advance is attached to the holding portion 8 of the fixture 5, and the bending edge 7 is hooked to the groove 2 provided corresponding to the attachment position of the sprinkler head with respect to the ceiling 20. By doing so, a predetermined dimension is naturally obtained. Next, the fixing material 23 is sandwiched between the hold arms 10a and 10b, and is mounted so that the outer diameter portion 9 of the mounting tube 1 is in contact with the side surface of the fixing material. After that, the wedge member 11 is driven between the fixing member 23 and the hook portions 10c and 10d of the hold arm with a hammer or the like to fix the fixing member 5 to the fixing member 23. The fixing work at this time is very quick and easy because only the wedge is driven. Therefore, the wedge member, the fixing member, the mounting pipe, and the fixing metal member are fastened to each other and firmly fixed. Further, even if severe vibration is applied to the mounting pipe or the like after the fixing, the action due to the elastic deformation of the hold arm also works and the fixing is not loosened.

Next, a second embodiment shown in FIG. 4 will be described. This embodiment can be applied to, for example, a construction in which the ceiling plate is double-tensioned, and the mounting pipe 1A is provided with four grooves 2a, 2b, 2c and 2d at appropriate intervals in the axial direction. That is, as shown in the above embodiment, the sprinkler head 4 is always positioned at a predetermined position with respect to the lower surface of the ceiling 20, in other words, the L dimension (Lb dimension in the figure) is predetermined. 4 the shape dimension (type), the thickness of the ceiling 20, the height dimension of each of the ceiling base material 21, the channel steel 22 and the fixing material 23, and the position dimension of the groove in relation to the axial dimension of the fixing bracket 5. It may be determined, but depending on the construction site, there is a difference in the L dimension due to the difference in the plate thickness of the ceiling and the type of the sprinkler head 4. That is, the ceiling plate has several plate thicknesses, and in some cases, two sheets are stacked. There is also a so-called exposed type sprinkler head in the sprinkler head 4, after the mounting pipe is fixed on the ceiling, and then screwed from the room side to the tip of the mounting pipe. Therefore, the L dimension changes depending on the combination of the ceiling plate and the sprinkler head. Therefore, it is desirable to provide a plurality of axially displaced grooves as in this embodiment so that this displacement can be flexibly corrected. Actually L size is about 4
Since there are various types, the above-mentioned four grooves are provided at intervals of about 10 mm. The groove may be formed in a part of the outer circumference as in the above.

Next, a method for fixing the mounting pipe 1A to the fixing member 23 will be described. Fixing the mounting pipe 1A to the fixing bracket 5
Is attached to the holding portion 8 of the mounting pipe, and at the same time as the mounting position of the sprinkler head with respect to the ceiling 20, the mounting pipe groove 2a,
A combination of any one of 2b, 2c and 2d and the bending edge 7 of the fixing metal fitting is selected. That is, in the case of this embodiment, the position of the hole corresponding to the predetermined Lb dimension is 2b, so that the folding edge 7 is hooked in the groove 2b to naturally perform the predetermined dimensioning. For example, in the case of constructing an exposed type sprinkler head that is double-ceilinged, the fitting with the groove 2d is selected as shown in FIG. Similarly, the fixing member 23 is sandwiched between the hold arms 10a and 10b, and the outer diameter portion 9 of the mounting pipe 1 is cut.
Attach so that they touch. After that, the wedge member 11 is driven between the fixing member 23 and the hook portions 10c and 10d of the hold arm with a hammer or the like to fix the fixing member 5 to the fixing member 23.

FIG. 5 shows a third embodiment, which is a construction example in which the ceiling is double-stretched and the exposed type sprinkler head 40 is mounted. In this case, the mounting position of the sprinkler head on the lower surface of the ceiling changes to the dimension Ld due to the difference in size between the ceiling plates 20 and 25 and the sprinkler head 40. However, this dimensioning is automatically performed by appropriately selecting the engagement between the bending edge 7 and the groove, that is, by selecting the groove 2d. Further, even if the sprinkler head 40 is screwed in from the room side, the mounting pipe 1 does not originally rotate and move due to the above-mentioned fixing, but a fitting portion such as a projection and a hole is provided between the mounting pipe and the fixing metal fitting. If it is provided, it will be even stronger against rotation.

FIG. 6 shows a fourth embodiment in which the fixing member 23 is a channel steel 26.
It shows a modified example in the case of. That is, the fixing bracket 51
Is formed on the arm 10e for holding the right side surface of the channel steel 26 and the arm 10f for holding the lower end portion thereof, and the wedge 11a as a tightening member is formed on the outer surface 9 of the mounting pipe and the left side surface of the channel steel 26. It is different from the above example in that it is interposed between.

FIG. 7 shows a fifth embodiment in which the holding portion of the fixing member 52 is enclosed and the bolt member 12 is used as a tightening member. Therefore, in this case, after the grip portion is passed through the fixing member 23 to determine the position, the bolt member 12 is screwed into the fixing member side to tighten and fix the fixing member 52, the mounting pipe 1A and the fixing member 23. It is similar to the embodiment described above.
In addition, although the mounting pipe 1 has a straight pipe shape in the above-mentioned five embodiments, it is useful depending on the piping condition to use a mounting pipe in which a bent connection portion is continuously and integrally provided above the fixing fitting 5. Is. Further, as shown in FIG. 6, instead of interposing a tightening member at the tip portion of the grip portion as in the above example.
As described above, it may be driven between the fixing material and the outer surface of the mounting pipe, and this is also included in the range interposed between the fixing material and the grip portion.

[0017]

According to the present invention, the dimensioning of the sprinkler head mounting position, which has conventionally been troublesome, can be efficiently and easily performed by anyone. Moreover, this can be done by selecting the most appropriate one according to the construction at the site, which is convenient. Further, the fixing work can be performed only by fixing with a wedge member or the like, and the fixing can be performed firmly without shifting in the axial direction or the radial direction.

[Brief description of drawings]

FIG. 1 is a perspective view around a sprinkler head mounting tube showing a first embodiment of the present invention.

FIG. 2 is a side view of a fixing metal part of FIG.

FIG. 3 is also a side view of FIG.

FIG. 4 is a side view of a fixing metal part showing a second embodiment of the present invention.

FIG. 5 is a side view of a fixing metal part showing a third embodiment of the present invention.

FIG. 6 is a side view of a fixing metal part showing a fourth embodiment of the present invention.

FIG. 7 is a side view of a fixing metal part showing a fifth embodiment of the present invention.

[Explanation of symbols]

 1, 1A ... Mounting tube 2 ... Grooves 2a, 2b, 2c, 2d ... Grooves 3 ... Tip of mounting tube 4, 40 ... Sprinkler head 5, 51, 52 ... Fixing metal fitting 6 ... Fixing metal fitting body 7 ... Bending edge 8 ... Holding part 10 ... Gripping parts 10a, 10b ... Hold arm 11 ... Wedge 12 ... Bolt material 23 ... Fixing material

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[Procedure amendment]

[Submission date] July 11, 1994

[Procedure Amendment 1]

[Document name to be amended] Statement

[Correction target item name] Full text

[Correction method] Change

[Correction content]

[Document name] Statement

[Title of Invention] Sprinkler piping and method of constructing sprinkler piping

[Claims]

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fire extinguishing sprinkler pipe provided in a ceiling of a building and the like, and more particularly to a fixing structure of a sprinkler head mounting pipe and a horizontal member.

[0002]

2. Description of the Related Art An example of a conventional fixing structure for a sprinkler head mounting tube is shown in Japanese Utility Model Publication No. 59-935. The fixing structure described in this publication relates to a structure in which a sprinkler head is attached to the tip of a sprinkler head attachment pipe that is branched from a main water supply pipe that is piped under the ceiling and is piped downward. This is to attach the tip of the sprinkler head mounting pipe to the ceiling surface at a predetermined position, bridge the grooved steel on the ceiling base material that fixes the ceiling plate, and The fixing material is fixed, and the sprinkler head mounting pipe is fixed to the fixing material by a screw-fastening type fixing fitting.

[0003]

In the above fixing structure, the sprinkler head mounting pipe (hereinafter, simply referred to as mounting pipe).
Since the tip of the sprinkler head mounting tube is fixed to the fixing material by tightening the screw of the fixing bracket with the tip set to the predetermined position with respect to the ceiling surface, it is troublesome to dimension the tip of the mounting tube and the ceiling surface. There was a problem. Actually, this dimensioning varies depending on the thickness of the ceiling plate and the shape size (type) of the sprinkler head, so that the work on site becomes more complicated. In addition, there are problems that the fastening pipe screws are insufficiently tightened, the pipe pressure fluctuates suddenly, and a large external force acts on the mounting pipe, causing the mounting pipe to move from a predetermined position.

The present invention solves the above problems,
(EN) Provided are a sprinkler pipe which is fixed so that a mounting pipe does not move in an axial direction and a radial (horizontal) direction, and a mounting method of the sprinkler head. With the goal.

[0005]

A sprinkler pipe according to the present invention comprises a mounting pipe having a locking recess on its outer surface, a horizontal member that is substantially orthogonal to the mounting pipe, and a holding portion surrounding at least a part of the mounting pipe. And a fixture having a locking projection that engages at least a part of the locking recess and a grip that is mounted on the horizontal member. Specifically, a flexible pipe is connected to one end and a sprinkler head is connected to the other end, respectively, and a mounting pipe having an outer peripheral surface with a locking recess in the circumferential direction, a horizontal member substantially orthogonal to the mounting pipe, and the mounting pipe Fixing having a holding portion that surrounds at least a part, a locking convex portion that engages with at least a portion of the locking concave portion, and a grip portion that extends from the holding portion in a direction perpendicular to the axis and that is attached to the horizontal member Sprinkler piping with fittings is preferred.

Further, according to the method of constructing the sprinkler pipe of the present invention, at least a part of the mounting pipe having the locking recess on the outer surface is surrounded by the holding portion of the fixture, and at least a part of the locking recess of the mounting pipe is provided. The process of engaging the locking projection formed on the fixture, the process of attaching the grip of the fixture to the horizontal member, and the fixture and the mounting tube and the horizontal member are tightened to each other. It has a process of fixing with a tightening member.

In the above, a plurality of locking recesses formed in the mounting pipe are provided at appropriate intervals in the axial direction, so that even if the mounting position of the sprinkler head on the ceiling surface changes, the locking recesses. It is possible to select a locking combination of the locking projection and the locking projection so that the locking combination can be adjusted to a predetermined position. The positions of the locking recess and the locking projection are predetermined, and the ceiling surface depends on the distance from the grip of the fixture to the locking projection and the distance from the locking recess of the mounting tube to the sprinkler head. The height of the sprinkler head with respect to is set to a predetermined position. Therefore, the type and size of the sprinkler head, the ceiling thickness, the ceiling base material, the channel steel, the height dimensions of the horizontal member (fixing material), and the axial direction between the grip part and the locking convex part on the fixture side. It is necessary to consider dimensions and respectively. Further, it is desirable to interpose a wedge-shaped tightening member between the horizontal member and the grip portion.

[0008]

Since the present invention has the above-mentioned structure, the fitting convex portion of the fixture is fitted into the fitting concave portion of the mounting pipe and locked, and the mounting pipe is dimensioned by simply fixing it to the horizontal member. Can be done naturally. Moreover, when a plurality of locking recesses are provided at appropriate intervals, by selecting the locking recess most suitable for the construction site and locking the locking projection, the shape dimension (type) of the sprinkler head It is possible to fix the mounting pipe in correspondence with a predetermined mounting position of the sprinkler head, which varies depending on the thickness of the ceiling plate and the like.

Further, the holding portion of the fixture is sandwiched so as to surround the mounting tube, and the locking concave portion and the locking convex portion are locked so that the grip portion is mounted on the horizontal member. If a tightening member, for example, a wedge-shaped tightening member, is driven between the horizontal member and the gripping portion in this state, the fixture, the mounting pipe, and the horizontal member are easily tightened to each other to exert a reaction force and strengthen. Fixed to. As a result, the mounting tube does not move either axially or radially. Furthermore, when the wedge angle is 10 degrees or less, the frictional force acting on the wedge surface is also large, and if the grip part is a hold arm shape, the elastic deformation also acts and the fixing loosens even if severe vibration is applied to the mounting pipe etc. There is no such thing.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. 1 to 3 show a first embodiment of the present invention, FIG. 1 is a perspective view showing a mounting state of a mounting pipe and a horizontal member in a ceiling, FIG. 2 is a side view of a fixture part, and FIG. It is the rear view. In FIG. 1, a flexible pipe 1b such as a bellows pipe made of stainless steel or a soft copper pipe attached to a water distribution pipe branched from a main water supply pipe in the ceiling is connected to an upper end of the attachment pipe 1 via a joint 1a. On the other hand, a female screw is provided at the tip portion of the mounting pipe 1, and the embedded sprinkler head 4 is screwed in. Then, the channel steel 22 is bridged on the ceiling base material 21 for fixing and suspending the ceiling 20, and further the fixing material 23 is bridged on the channel steel 22 and fixed by the mounting bracket 24. There is. The mounting pipe 1 is fixed to the fixing member 23 by using a fixing tool 5. As the fixing member 23, a grooved steel or the like is used in addition to the rectangular pipe as shown. The horizontal member referred to in this specification includes the fixing member 23, the channel steel 22, the ceiling base material 21, etc., but since the fixing member 23 generally corresponds, the fixing member 23 will be referred to as the horizontal member below. As described below.

The mounting pipe 1 may be made of a suitable material and shape such as a plastically worked steel pipe, a cast pipe or joint, or a combination thereof. Flexible tube 1b at the upper end
There is a connection part with, and a connection part with a screw connection or a mechanical joint is provided. A female thread is usually formed at the lower end, and the sprinkler head 4 is screwed in and attached. Further, a locking recess is provided on the outer surface appropriately above the lower end. In this embodiment, it is the groove 2. Hereinafter, the locking recess will be referred to as a groove for description. This groove can be formed integrally in the case of casting, or can be formed in the case of a steel pipe by a groove processing machine or the like which is commonly used in the field. This does not need to be provided over the entire outer circumference, and may be provided on a part of the outer surface or discontinuously. Further, a structure may be adopted in which a groove is provided on the upper portion of the mounting tube and a locking convex portion formed on the upper end portion of the holding portion is hooked. But,
As shown in the figure, it is more convenient to install in the lower part because the fluid will not be throttled in the middle of the pipe and it will be stronger and more convenient for construction.

Reference numeral 5 denotes a sheet metal fixture (hereinafter, a fixture may be a plastic material or the like), a holding portion 8 that encloses a substantially half outer circumference of the mounting tube 1, and a direction perpendicular to the axis from the holding portion. It has a gripping portion 10 that extends to and is mounted on a fixing member 23, that is, hold arms 10a and 10b, and a locking convex portion that engages with the groove 2 of the mounting tube 1, that is, a bending edge 7. As shown in FIGS. 2 and 3, the lower end portion of the holding portion 8 is bent in a direction perpendicular to the inner side to form a bending edge, and the edge 7 is hooked in a range around a half circumference of the groove 2.
When viewed from above, the fixing member 5 has a substantially semi-arcuate holding portion 8 and a holding portion 10 that follows the holding portion 8 and has a substantially U-shape. Here, the holding portion 8 and the grip portion 10 may be made slightly smaller than the diameter of the mounting tube 1 so as to be pushed against the elastic force and sandwiched by the elastic force. As shown in the figure, the side surface of the grip portion 10 is formed by notching the approximately middle portion of the flat plate in accordance with the shape and size of the fixing material 23, and fixing the fixing material.
Hold arms 10a and 10b are formed so as to sandwich 23, and the ends of the hold arms 10a and 10b are provided with bent hook portions 10c and 10d. Further, these have a slight taper gradient from the upper hook portion 10C to the lower hook portion 10d, and are formed so that the tightening member described below can be easily inserted and the tightening force increases.

Numeral 11 is a tightening member, and in this embodiment, both ends of the steel plate are bent at a substantially right angle, and the bent parts enter the above-mentioned gaps of the hooks on the fixture side. It is a wedge-shaped member in which one surface in the longitudinal direction has a small gradient with an angle of about 10 ° or less. If a hole is made in a part of the body of the tightening member, the hole can be easily tapped out when the user fails in driving and tries to pull out the hole. It should be noted that wood may be used in place of the steel plate, or wood without a slope or taper may be used.

Next, the construction for fixing the mounting pipe 1 to the fixing member 23 will be described. First, the sprinkler head 4 in advance
The mounting pipe 1 to which is attached is attached to the holding portion 8 of the fixing fitting 5, and the bending edge 7 is hooked on the groove 2 provided corresponding to the mounting position of the sprinkler head with respect to the ceiling 20. By doing so, the predetermined dimension is naturally obtained. Next, hold arms 10a and 10b are fixed to a fixing member 23.
It is mounted so that the outer diameter portion 9 of the mounting tube 1 is in contact with the side surface of the fixing member 23. Since this hold arm is divided into upper and lower parts and the end is open, it is convenient because it can be hung on any place even after the fixing material is fixed by the mounting bracket. After that, the fixing material 23 and the hook part 10 of the hold arm
A wedge-shaped tightening member 11 is hammered in between c and 10d to fix the fixture 5 to the fixture 23. The fixing work at this time is very quick and easy because only the fastening member is driven. Therefore, the tightening member, the fixing member, the mounting pipe, and the fixing fitting are tightened to each other and firmly fixed.
Further, even if a violent vibration is applied to the mounting pipe after fixing, the holding arm is elastically deformed and the fixing is not loosened.

Next, a second embodiment shown in FIG. 4 will be described. This embodiment can be applied to, for example, a construction in which the ceiling plate is double-tensioned, and the mounting pipe 1A is provided with four grooves 2a, 2b, 2c and 2d at appropriate intervals in the axial direction. That is, as shown in the above embodiment, the sprinkler head 4 is always positioned at a predetermined position with respect to the lower surface of the ceiling 20, in other words, the L dimension (Lb dimension in the figure) is predetermined. 4 the shape dimension (type), the thickness of the ceiling 20, the height dimension of each of the ceiling base material 21, the channel steel 22 and the fixing material 23, and the position dimension of the groove in relation to the axial dimension of the fixing bracket 5. It may be decided in advance, but depending on the construction site, the L dimension varies depending on the difference in the ceiling plate thickness and the type of the sprinkler head 4. That is, the ceiling plate has several plate thicknesses, and in some cases, two sheets are stacked. There is also a so-called exposed type sprinkler head in the sprinkler head 4, after the mounting pipe is fixed on the ceiling, and then screwed from the room side to the tip of the mounting pipe. Therefore,
The L dimension changes depending on the combination of the ceiling plate and the sprinkler head. Therefore, it is desirable to provide a plurality of axially displaced grooves as in this embodiment so that this displacement can be flexibly corrected. Actually, there are four types of L dimension, so the above-mentioned four grooves are provided at intervals of about 10 mm. If there are a plurality of grooves, it is not easy to form the grooves on the spot, so it is preferable to use those integrally formed with a casting pipe. At this time, the groove may be formed in a part of the outer periphery as described above.

Next, the construction for fixing the mounting tube 1A to the fixing member 23 will be described. Fixing the mounting pipe 1A to the fixing bracket 5
Is attached to the holding portion 8 of the mounting pipe, and at the same time as the mounting position of the sprinkler head with respect to the ceiling 20, the mounting pipe groove 2a,
A combination of any one of 2b, 2c and 2d and the bending edge 7 of the fixing metal fitting is selected. That is, in the case of this embodiment, the position of the hole corresponding to the predetermined Lb dimension is 2b, so that the folding edge 7 is hooked in the groove 2b to naturally perform the predetermined dimensioning. For example, in the case of constructing an exposed type sprinkler head that is double-ceilinged, the fitting with the groove 2d is selected as shown in FIG. Similarly, the fixing member 23 is sandwiched between the hold arms 10a and 10b and mounted so that the outer diameter portion 9 of the mounting pipe 1 contacts. After that, the wedge-shaped tightening member 11 is hammered in between the fixing member 23 and the hook portions 10c and 10d of the hold arm to fix the fixing member 5 to the fixing member 23.

FIG. 5 shows a third embodiment, which is a construction example in which the ceiling is double-stretched and the exposed type sprinkler head 40 is mounted. In this case, the mounting position of the sprinkler head on the lower surface of the ceiling changes to the dimension Ld due to the difference in size between the ceiling plates 20 and 25 and the sprinkler head 40. However, this dimensioning can be done automatically by appropriately selecting the engagement between the folding edge 7 and the groove, ie by selecting the groove 2d. Further, even if the sprinkler head 40 is screwed in from the room side, the mounting pipe 1 does not originally rotate and move due to the above-mentioned fixing, but a fitting portion such as a projection and a hole is provided between the mounting pipe and the fixing metal fitting. If it is provided, it will be even stronger against rotation.

FIG. 6 shows a fourth embodiment in which the fixing member 23 is a channel steel 26.
It shows a modified example in the case of. That is, the fixing bracket 51
The grip portion 10 is formed into an arm 10e for gripping the right side surface of the channel steel 26 and an arm 10f for gripping the lower end portion, and the tightening member 1
The difference from the above example is that 1a is interposed between the outer surface 9 of the mounting pipe and the left side surface of the channel steel 26.

FIG. 7 shows a fifth embodiment, in which the holding portion of the fixing metal fitting 52 is completely enclosed and the bolt member 12 is used as a fastening member. Further, as another example of the tightening member, a part of the grip portion may be cut out and the upper and lower grip portions facing each other may be tightened with bolts. Therefore, in these cases, after the gripping portion is passed through the fixing material 23 to determine the position, the bolt material 12 is screwed into the fixing material side to tighten and fix the fixing metal fitting 52, the mounting pipe 1A and the fixing material 23. This is similar to the above-mentioned embodiment. In addition, although the mounting pipe 1 has a straight pipe shape in the above-mentioned five embodiments, it is useful depending on the piping condition to use a mounting pipe in which a bent connection portion is continuously and integrally provided above the fixing fitting 5. Is. Further, instead of interposing the tightening member at the tip portion of the grip portion as in the above example, it may be driven between the fixing material and the outer surface of the mounting pipe as shown in FIG. And is included in the range of being interposed in the gap between the grip portion. In addition to the above example, the gripping portion may be formed by using a steel wire to form an enclosure of the holding portion, and from this, the arm portion may be integrally formed. The minimum gripping portion may have a portion that hooks on the upper surface of the fixing material.
Further, as for the tightening member, another conventional method can be adopted without being limited to the above example.

[0020]

According to the present invention, the dimensioning of the sprinkler head mounting position, which has conventionally been troublesome, can be efficiently and easily performed by anyone. Moreover, this can be done by selecting the most appropriate one according to the construction at the site, which is convenient. Also, the fixing work can be performed easily by firmly driving the fastening member without shifting in the axial direction or the radial direction.

[Brief description of drawings]

FIG. 1 is a perspective view around a sprinkler head mounting tube showing a first embodiment of the present invention.

FIG. 2 is a side view of a fixing metal part of FIG.

FIG. 3 is also a side view of FIG.

FIG. 4 is a side view of a fixing metal part showing a second embodiment of the present invention.

FIG. 5 is a side view of a fixing metal part showing a third embodiment of the present invention.

FIG. 6 is a side view of a fixing metal part showing a fourth embodiment of the present invention.

FIG. 7 is a side view of a fixing metal part showing a fifth embodiment of the present invention.

[Explanation of Codes] 1, 1A ... Mounting tube 2 ... Groove, locking recess 2a, 2b, 2c, 2d ... Groove, locking recess 3 ... Mounting pipe tip 4, 40 ... Sprinkler head 5, 51, 52 ... Fixing bracket 6 ... Fixing bracket body 7 ... Bending edge, locking projection 8 ... Holding part 10 ... Gripping part 10a, 10b ... Hold arm 11 ... Wedge-shaped tightening member 12 ... Bolt-shaped tightening member 23 ... Fixing material

Claims (6)

[Claims] 1. A fixing structure for fixing a sprinkler head mounting pipe and a fixing member, the mounting pipe having a groove on an outer surface, a locking portion for locking at least a part of the groove, and the mounting pipe. A fixing structure for a sprinkler head mounting pipe, comprising: a fixture having a holding part that is mounted and held; a gripping part that is mounted and gripped by the fixing material; and a tightening member. 2. The fixing structure for a sprinkler head mounting pipe according to claim 1, wherein the mounting pipe is provided with a plurality of grooves at appropriate intervals in the axial direction. 3. The tightening member is a wedge member interposed between the fixing member and the grip portion.
Alternatively, the fixing structure for the sprinkler head mounting pipe according to 2 above. 4. A fixing method for fixing a sprinkler head mounting pipe and a fixing member, wherein the mounting pipe is mounted on a holding portion of a fixture, and at least a part of a groove formed on an outer surface of the mounting pipe. After locking the locking portion formed on the fixing member to the fixing member and attaching the gripping portion of the fixing member to the fixing member, the fixing member, the mounting tube, and the fixing member are tightened by the tightening member so that the fixing member is tightened to each other. A method for fixing a sprinkler head mounting pipe, which is characterized by being fixed. 5. A plurality of grooves formed in the mounting pipe are provided at appropriate intervals in the axial direction, and the grooves and the engaging portions are appropriately arranged in correspondence with the mounting position of the sprinkler head on the ceiling surface. 5. The method of fixing a sprinkler head mounting pipe according to claim 4, wherein the locking combination is selected and then fixed as described above. 6. The method of fixing a sprinkler head mounting pipe according to claim 4, wherein the tightening member is interposed and fixed between the fixing member and the grip portion.