JPH10339387A - Piping supporter device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make supporting possible of a pipe so as to prevent unreasonable force from easily acting in the pipe, when horizontal shaking is applied by an earthquake, and make forming possible in a simple structure, while suppressing a support height change in an ordinary piping support condition. SOLUTION: In the case of constituting a support part 4 supporting a relay piping part P3 in a condition permitting horizontal shaking, a rod 5 suspending the relay piping part P3 is provided, in a lower end part of the rod 5, a pipe mounting part 6 in the relay piping part P3 is provided, in an upper end part of the rod 5, a building mounting part 7 mounting the upper end part of the rod 5 along a direction of second axial center X of a second piping part slidably in a building is provided, the rod 5 is formed with its length fixable, and a swivel mechanism 15 is provided, which permits swiveling of the rod 5 to the right/left in a slide direction.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a first piping section fixed to a building body above a seismic isolation mechanism, among pipes extending from a building provided with a seismic isolation mechanism on a base portion to a surrounding ground. A relay pipe portion provided in a state of intersecting with a second pipe portion fixed to a base portion below the seismic isolation mechanism in a posture intersecting with the first axis of the first pipe portion, in a state in which a roll is allowed. The present invention relates to a pipe support device provided with a support portion for supporting a pipe.

[0002]

2. Description of the Related Art Conventionally, in a building having a seismic isolation mechanism,
As shown in FIG. 8, in the portion where the pipes are connected to the surrounding ground, as shown in FIG. The first pipe section P1 fixed by the fixing section and the second pipe section P2 fixed by the pipe fixing section to the ground side are arranged in a state where their axes intersect, and both pipe sections P1 and P2
Over the relay pipe section (“L”) via the flexible pipe H
P3) is often connected. And, as a conventional pipe support device that supports the relay pipe portion P3 in a state that allows the roll thereof, a rod 5 for suspending the pipe is provided at the lower end of the rod to constitute the support portion 4. A pipe mounting part 6 is provided, a building mounting part 17 for fixing the upper end of the rod to a building is provided, and the rod 5 is swingably mounted on the building mounting part 17,
The rod 5 is provided with a spring mechanism 18 that elastically urges the vertical movement of the pipe mounting section 6 (Japanese Patent Laid-Open No.
Japanese Patent Application Laid-Open No. -20943), the relative roll between the building and the ground caused by the earthquake is relieved by the swing of the rod 5,
Further, the pitching caused by the earthquake is relieved by the spring mechanism 18.

[0003]

According to the above-described conventional pipe supporting apparatus, although it has a feature that it can be formed into a simple structure using a hinge and a spring, the pipe inside the pipe in a normal pipe supporting state is provided. If the flow condition of the fluid changes, the supporting height of the pipe tends to change due to the expansion and contraction of the spring mechanism, and the inside of the pipe of the pipe supporting portion becomes a water pool or an air pocket, and the fluid becomes There is a problem that it may hinder the distribution of such products. Further, the rod swings in response to a roll in the event of an earthquake, but the greater the swing of the rod, the larger the relay pipe portion supported by the pipe support device. Also swings greatly, the pipe fixing part to the building side, the pipe part fixed by the pipe fixing part to the ground side, and the flexible pipe, torsion force, bending force to the up, down, left and right There is a danger that the pipes will be damaged at one time.
Then, there is a concern that the structure of the pipe support device may be complicated to prevent the breakage of the pipe, and as a result,
It is expected that the cost will increase.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to solve the above-mentioned problems and to suppress a change in the support height in a normal pipe support state, while supporting the pipe so that an excessive force is unlikely to act on the pipe in the event of a roll due to an earthquake. It is an object of the present invention to provide a piping support device which can be formed with a simple structure.

[0005]

[Means for Solving the Problems]

[Structure] As shown in FIGS. 1 to 4 and FIG. 7, the characteristic structure of the invention according to claim 1 is that, among the pipes P extending from the building B having the base isolation portion 2 to the seismic isolation mechanism 2 and the surrounding ground G, First piping section P fixed to building body B1 above seismic isolation mechanism 2
1 and a second piping portion P3 fixed to a base portion B2 below the seismic isolation mechanism in a posture intersecting with the first axis Y of the first piping portion P1.
In a pipe support device provided with a support portion 4 for supporting the device in a state in which roll is allowed, a rod 5 for suspending the relay pipe portion P3 is provided to constitute the support portion 4,
At the lower end of the rod 5, a pipe mounting part 6 for connecting to the relay piping part P3 is provided, and at the upper end of the rod 5, the upper end of the rod 5 is connected to the second pipe core X direction of the second piping part P2. A swinging mechanism that slidably moves along the building B to the building B, forms the rod 5 so as to be fixed in length, and allows the rod 5 to swing right and left in the sliding direction. 15 is provided.

A feature of the invention according to claim 2 is that, as exemplified in FIGS. 1 to 4, a height adjusting mechanism 5a capable of adjusting a supporting height of the pipe P is provided.

[0007] As described above, reference numerals are provided for convenience of comparison with the drawings, but the present invention is not limited to the configuration shown in the accompanying drawings.

[Operation and Effect] The first pipe part P1 fixed to the building body above the seismic isolation mechanism, and the first seismic isolation mechanism in a posture intersecting with the first axis Y of the first piping part. In a pipe structure in which a relay pipe section P3 is provided via a flexible pipe in a state of extending over a second pipe section P2 fixed to a lower base section, the relative position between the building body section and the base section caused by the earthquake. By the lateral movement, the fixed portion of the first pipe portion P1 (portion fixed by the pipe fixing portion 3A to the building body portion) and the fixed portion of the second pipe portion P2 (the pipe fixing portion to the ground side). 3
B) and the support portion of the relay pipe portion P3 (the portion supported by the pipe support device) are shown in FIG.
It was clarified that the behavior shown in FIG. FIG. 6 is based on the assumption that the fixing portion of the second piping portion P2 moves within a range of a predetermined radius from the position in the normal state with reference to the fixing portion of the first piping portion P1. The first shaft center Y
4 is a behavior simulation showing a maximum movement position along a second axis X, which is an axis of the second pipe portion, along with a maximum movement position along the axis. As can be seen from this, it has been found that the range of movement of the support portion of the relay pipe part P3 is in a slender range along the second axis X. According to the characteristic configuration of the invention of claim 1, to constitute the support portion, a rod for suspending the relay pipe portion is provided, and at a lower end portion of the rod,
A pipe mounting part for the relay pipe part is provided, and at the upper end of the rod, a building mounting part for slidably mounting the upper end of the rod along the second axial direction of the second pipe part to the building. In addition, since the rod is formed so as to be freely fixed in length and a swing mechanism that allows the rod to swing right and left in the sliding direction is provided, in a normal pipe support state, It is possible to support the pipe while maintaining the pipe at a predetermined height, regardless of the presence or absence of fluid in the pipe, regardless of the flow state, maintain a predetermined support height, in the pipe of the pipe support, a water pool, While air pockets can be prevented and fluid can flow smoothly, during an earthquake, the large behavior of the relay pipe moving along the second axial center direction, Slide work And the small movement along the first axis direction can be accommodated by the swinging mechanism, and the lateral movement can be allowed without a large change in the supporting height. . As a result, the torsional force is less likely to act on the pipe fixing portion to the building side or the pipe at the pipe fixing portion to the ground side, and the pipe supporting state in which only the bending force is mainly absorbed by the flexible pipe is reduced. It is easy to prevent the pipe from being damaged due to the earthquake. That is, in a building having a seismic isolation mechanism at the base, suitable piping support can be achieved at a piping connection with the surrounding ground. Furthermore, in order to achieve such an excellent operation, the building mounting portion is provided with a slide mechanism in a single direction, and in addition to the above, the above-mentioned structure can be used without using a special device or a complicated mechanism. The operation can be realized, and a simple configuration can be adopted to suppress an increase in cost.

According to the characteristic configuration of the second aspect of the present invention, in addition to the effect of the first aspect of the present invention, a height adjusting mechanism capable of adjusting the supporting height of the pipe is provided. Therefore, it is possible to easily adjust the height of the pipe support at the pipe support portion, and to improve the work efficiency at the time of pipe installation, and to generalize the rod, thereby reducing costs. It becomes possible to plan.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. In the drawings, portions denoted by the same reference numerals as those of the conventional example indicate the same or corresponding portions.

FIGS. 1 to 4 show a pipe of a building B (for example, using a support apparatus 1 of one embodiment of a pipe support apparatus of the present invention).
This shows a situation in which the drainage pipe) P is supported at the joint portion 20 with the surrounding ground G. As shown in the figure, the building B has a seismic isolation device (corresponding to a seismic isolation mechanism) 2 installed in the underground portion thereof, and a building body B1 on the foundation B2 via the seismic isolation device 2. Is supported. Therefore,
The base portion B1 and the building body portion B2 are configured to be capable of relative lateral movement via the seismic isolation device 2 during an earthquake.

The pipe P has a first pipe section P1 fixed to the building B at a pipe fixing section 3A and a second pipe section P2 fixed to the ground G at a pipe fixing section 3B. , Each other (the axis of the first piping portion P1 is referred to as a first axis Y,
The axis of the second pipe P2 is referred to as the second axis X), and the two pipes P1 and P2 are connected via a flexible pipe H (for example, a rubber flexible pipe). A pipe section (formed from an "L" shaped pipe) P3 is connected, and the first and second pipe sections P1 and P2 move relative to each other in accordance with the lateral relative movement between the building B and the ground G caused during an earthquake. Is absorbed by the relay pipe section P3 and the flexible pipe H, so that the pipe breakage at the connecting portion 20 can be prevented. The pipe fixing portion 3A to the building B side is constituted by a metal first fixing frame 21 attached to the lower surface of the slab of the building main body B1. The part P1 is fixed. In addition, the pipe fixing portion 3B to the ground G side is
The second piping portion P2 is fixed to the second fixed frame 22 made of metal attached to the upper surface of the second fixed frame 22. And, the relay pipe part P3
Is suspended and supported by the support device 1.

The supporting device 1 is provided with a supporting portion 4 for supporting the pipe P in a state in which the pipe P is allowed to sway between the pipe fixing portions 3A and 3B. The support part 4 is
A rod 5 for suspending the pipe P is provided.
A pipe mounting portion 6 is provided at a lower end of the building, and a building mounting portion 7 is provided at the upper end of the rod 5 to slidably attach the upper end of the rod 5 to the building body B1 along the second axis X direction. And a swing mechanism 15 that allows the rod 5 to swing left and right in the sliding direction (in this embodiment, in the first axis Y direction) is provided.

[0014] As shown in FIG.
A pair of clamps 6a are provided so as to be clamped with respect to the relay pipe P3. The lower end of the rod 5 is connected to the pipe attachment 6.

The rod 5 is provided with a turnbuckle portion (corresponding to a height adjusting mechanism) 5a for adjusting the length at an intermediate portion thereof, and the turnbuckle portion 5a is rotated around the axis. Thereby, the length of the rod 5 (corresponding to the supporting height of the pipe) can be adjusted to expand and contract. Of course, when the turnbuckle portion 5a is not rotated, the length of the lot 5 is fixed.

As shown in the figure, the building mounting portion 7 includes a cylindrical (or round bar) guide rail 8a that slidably supports the lot 5 along the first axis Y. A pair of fixing brackets 8b for separately attaching both ends of the guide rail 8a to the lower surface of the slab of the building body B1, and a roller 8c slidably mounted on the guide rail 8a along the longitudinal direction are provided. It is configured. The roller portion 8c is connected to the guide rail 8
a two wheels 11 spaced apart in the longitudinal direction of a
And a housing 12 for pivotally supporting the two wheels 11. The rod 5 is attached to the lower end of the housing 12 so as to be swingable along the longitudinal direction of the guide rail 8a. The wheel 1
An annular groove is formed on the outer peripheral surface of the guide rail 8a along the circumferential direction, and the annular groove extends along a convex curved surface of the outer peripheral surface of the guide rail 8a. Therefore, the guide rail 8
The roller portion 8c and the rod 5 can swing around the axis of the guide rail in the mounted state in which the wheel is mounted on a. In other words, the rod 5
Swinging right and left in the sliding direction can be allowed. The swing mechanism 15 is configured by the guide rail 8a and the wheels 11, and as described above, the slide mechanism and the swing mechanism are used in combination by the configuration of the guide rail 8a and the wheels 11. Therefore, it is realized that the supporting device 1 of the present embodiment has a simple configuration and prevents cost increase (see FIG. 4). Further, the arrangement of the hinge shaft for rod attachment to the housing 12 is set on the opposite side of the wheel 11 with respect to the guide rail 8a, so that in case of an earthquake or other external force acting on the supporting device, carelessly, The configuration is such that the roller portion 8c can be prevented from falling off the guide rail 8a.

With the above structure, even when the building body B1 and the base B2 relatively swing due to the earthquake, relative movement occurs between the first pipe P1 and the second pipe P2. In the direction in which the relay pipe portion P3 largely moves (in the present embodiment, the first axis Y direction), the rod 5 and the relay pipe portion P3 are moved by the guide rail 8a and the roller portion 8c. The swinging mechanism 15 supports the relay pipe P3 movably along a horizontal plane or a substantially horizontal plane, and in the direction in which the movement range of the relay pipe part P3 is small (in the embodiment, the second axis X direction). The relay pipe P3 can be movably supported along a horizontal plane or a substantially horizontal plane while adopting a simple structure, and can be movably supported by swinging, so that excessive torsional stress is hardly applied to the pipe. Support It is possible to become. Further, in a normal state other than the time of the earthquake, it is possible to support the pipe in a state where the pipe support height at the relay pipe section P3 is hard to change, and it is possible to maintain the slope of the pipe, and water pools and air pockets are formed in the pipe. Hard to do.

[Another Embodiment] Another embodiment will be described below.

<1> The structure of the building mounting portion is not limited to the structure including the cylindrical guide rail 8a and the roller portion 8c described in the above embodiment. It is also possible to change the configuration to include a guide rail having a C-shaped cross section (positioned with the opening facing downward) and a roller portion installed so as to slide on the inner surface of both side edges of the guide rail. In short, what is necessary is just to comprise so that the upper end part of the said rod may be attached to the said building main-body part in the state which can be slid along the 2nd axial direction of the said 2nd piping part. <2> The swing mechanism is not limited to the one configured by the guide rail 8a and the roller portion 8c described in the above embodiment. For example, the swing mechanism may be replaced with the configuration of the guide rail 8a and the roller portion 8c. Alternatively, a hinge mechanism that allows the rod to swing right and left in the sliding direction may be provided on a portion near a connecting portion between the rod and the building mounting portion or on the rod. <3> The guide rail 8a is not limited to the linear shape described in the above embodiment.
As shown in the above, if the rod is formed to have an arc shape having a radius centered on the end of the first piping portion P1 and the radius up to the installation portion of the piping attachment portion 6 in plan view, the rod can slide more during an earthquake. This makes it easier to prevent swinging to the left and right in the sliding direction, and makes it possible to support the pipe in a state of less change in height against horizontal swing. <4> The pipe is not limited to the drain pipe described in the above embodiment. For example, a pipe such as a water supply pipe or a fire-fighting digestion pipe may be used.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing a joint portion of a pipe.

FIG. 2 is a partially cutaway perspective view showing an installation state of a support device.

FIG. 3 is a partially cutaway side view showing the installation state of the support device.

FIG. 4 is a partially cutaway front view showing an installation state of a support device.

FIG. 5 is a schematic top view showing the behavior of a pipe.

FIG. 6 is a schematic top view showing a moving state of a pipe mounting portion.

FIG. 7 is a top view showing a supporting device of another embodiment.

FIG. 8 is a side view showing a conventional support device.

[Explanation of symbols]

 2 Seismic isolation mechanism 3A Pipe fixing part 3B Pipe fixing part 4 Support part 5 Rod 5a Height adjustment mechanism 6 Pipe mounting part 7 Building mounting part 15 Swing mechanism B Building B1 Building body B2 Base part G Ground P Piping P1 First Pipe part P2 Second pipe part P3 Relay pipe part X Second shaft center Y First shaft center

Claims (2)

[Claims] A first pipe fixed to a building body above the seismic isolation mechanism, wherein the first pipe section includes a first pipe section fixed to a building body above the seismic isolation mechanism. A support portion that supports the relay pipe portion provided in a state of crossing with the second pipe portion fixed to the base portion below the seismic isolation mechanism in a posture intersecting with the first shaft center, in a state that allows rollover. A pipe support device provided, comprising: a rod for suspending the relay pipe section; and a pipe attaching section to the relay pipe section provided at a lower end of the rod to constitute the support section; At the upper end of the rod, a building mounting portion for slidably mounting the upper end of the rod along the second axial direction of the second pipe portion to the building body is provided, and the rod is formed so as to be freely fixed in length. Along with
A pipe support device provided with a swing mechanism that allows the rod to swing right and left in the sliding direction. 2. The pipe supporting apparatus according to claim 1, further comprising a height adjusting mechanism capable of adjusting a supporting height of the pipe.