JPH1144382A - Hanging device for displacement absorbing joint in piping facility - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simplify construction and execution and prevent a piping and a joint from being burdened by external force such as earthquake by hangingly providing a displacement absorbing joint movably in all the horizontal azimuth by a guide means installed on either a foundation or a structure body. SOLUTION: When earthquake happens and displacement in the horizontal direction is generated between pipings P1 and P2, a connecting bent pipe is pulled properly in the horizontal direction according to the displacement through flexible pipes 1 and 2. A handing rod 7 hanging the connecting bent pipe 3 can freely move along a movable pipe 6 in the lengthwise direction (to be set in the X-direction), further the movable pipe 6 can freely move in the direction squarely crossing to the X-direction (in the Y-direction), in addition, because a hanging rod slide member 7a is constituted rotationally movable against the connecting bent pipe 3, when the connecting bent pipe 3 is pulled in the horizontal direction, it is freely moved in the pulling direction without resisting the pulling force. Hereby there is no possibility to generate immoderate stress on a piping or a connection construction.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a suspension device for a displacement absorption joint in piping equipment such as a water pipe, a gas pipe, or a drain pipe in a structure such as a building.

[0002]

2. Description of the Related Art In recent years, buildings such as buildings have a so-called seismic isolation structure in which a seismic isolation member such as laminated rubber is installed between a foundation and a building body to absorb seismic energy and relieve severe shaking of the building. Is being built. In this type of seismic isolation building, the main body of the building is largely displaced horizontally with respect to the foundation anchored to the ground during an earthquake, so the piping installed between the foundation anchored to the ground and the building body Is
Measures against this displacement are required.

Conventionally, as a piping for a seismic isolation building, for example, as shown in FIG. 9, a rubber flexible joint F is connected to a piping P of a building or the like, and these rubber flexible joints F are connected to orthogonal connection pipes. G, and the orthogonal connection pipe G is mounted on a movable support beam D with casters. When horizontal displacement occurs in both pipes P, P due to an earthquake or the like, FIG. As shown by the line, the support beam D and the rubber flexible joint F move or deform to absorb the displacement.

[0004]

However, there is a problem that the structure of the support means such as the support beam D of the conventional displacement absorption joint for piping is complicated and expensive.

The present invention has been made in order to solve the above-mentioned conventional problems, and an object of the present invention is to make it possible to install the structure and the construction easily and inexpensively.
An object of the present invention is to provide a suspension device for a displacement absorbing joint in piping equipment in which a load on a pipe or a joint due to an external force such as an earthquake is not likely to be applied.

[0006]

Means for Solving the Problems A suspension device for a displacement absorbing joint in a piping facility according to the present invention comprises a foundation fixed to the ground and a structural body constructed on the foundation via seismic isolation means. In the piping equipment installed in between, the displacement absorbing joint that connects the two pipes of the foundation and the structure body to each other can be moved in all horizontal directions by guide means installed on either the foundation or the structure body It is characterized by being suspended from Further, the guide means includes two parallel fixed guide means attached to one of the foundation and the structure main body, and movable guide means capable of moving in parallel along the longitudinal direction of these fixed guide means. And a means for suspending an intermediate portion of the displacement absorbing means so as to be movable in a longitudinal direction of the movable guiding means.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. In FIG. 1, 1 is a flexible pipe connected to a pipe P1 on the foundation side, and 2 is a pipe P on the building side.
2 is a flexible tube connected. Piping P1 and P2
Are oriented at a predetermined angle (90 ° in the present embodiment) with respect to each other, the flexible tubes 1 and 2 connected to these pipes P1 and P2 are also at a predetermined angle (the present embodiment). Is 90 °).

Reference numeral 3 denotes a connection bending pipe, which connects the distal ends of the flexible pipes 1 and 2 to each other. The connection bent pipe 3 of the present embodiment is a connection pipe bent in an L-shape of 90 °, but is not limited to this. The connecting bent tube 3 is provided within a range of flexible movement of the flexible tubes 1 and 2 by 360
It can be moved to any position in the ゜ direction.

Reference numerals 4 and 5 denote fixed rods which are fixed to a lower side of a slab or a beam of a building in parallel with a predetermined interval therebetween. 4a and 5a are fixed portions. In this case, the connecting curved tube 3 is disposed at a substantially central portion of the fixed rods 4 and 5.

Reference numeral 6 denotes a movable rod, and slide members 6a, 6a are attached to both ends of the movable rod, and the slide members 6a are slidably mounted on the fixed rods 4, 5, respectively. Therefore, the movable rod 6 is connected to the fixed rod 4,
5 can be translated in a state that is always perpendicular to the axis.

Reference numeral 7 denotes a suspension rod, and a slide member 7 a is attached to an upper end portion of the suspension rod. The slide member 7 a is slidably mounted on the movable tube 6. The connection curved pipe 3 is attached to a lower end of the suspension rod 7. Note that at least the slide member 7a is rotatable with respect to the connection curved pipe 3.

[0012] Since the displacement absorbing joint and the suspension device thereof in the piping equipment of the above embodiment are configured as described above, when an earthquake occurs and a horizontal displacement occurs between the pipes P1 and P2, these displacements may be reduced. The connecting bent tube 3 is pulled in the horizontal direction as appropriate in accordance with the displacement via the flexible tubes 1 and 2 connected to the tube.

A hanging rod 7 for hanging the connection curved pipe 3
Is configured to be freely movable in its longitudinal direction (X direction) along the movable rod 6, and the movable rod 6 is orthogonal to the X direction (Y direction). , And at least the hanging rod slide member 7a is configured to be freely rotatable with respect to the connection curved tube 3 as described above. Is pulled horizontally,
The connection tube 3 is free to move in the pulling direction without resisting the pulling force. At this time, both flexible tubes 1 and 2
Is flexibly bent so that excessive stress is not generated in the connection structure with the pipes P1 and P2 and the connection structure with the connection curved pipe 3 so as not to be damaged.

In the embodiment shown in FIG. 1, the direction of the flexible tube 1 and the movable rod 6 are parallel to each other, and the direction of the flexible tube 2 and the fixed rods 4 and 5 perpendicular to these are parallel to each other. , Are arranged, but the present invention is not limited to these,
For example, as shown in FIG. 2, each of the flexible tubes 8 and 9 may be configured to be oriented in a 45 ° direction with respect to the fixed rods 4 and 5 and the movable rod 6.

In the embodiment shown in FIG. 1, the flexible tubes 1 and 2 are formed by covering a synthetic resin hose with a wire blade. For example, as shown in FIG. It may be a rubber hose that is reinforced to form a number of annular ribs. In short, the flexible rod of the present invention is made of a material or a structure that can withstand the pressure of the fluid flowing therein and is highly flexible. Any method may be used.

FIG. 3 shows another embodiment of the means for attaching the fixed rods 4 and 5 shown in FIGS. 1 and 2 above, wherein both ends of the fixed rods 4 ′ and 5 ′ are fixed via fixing bolts 10. It is fixed to a floor slab S or the like. Therefore, in this embodiment, the height of the fixed rods 4 'and 5' can be adjusted by the adjusting nut 10a.

FIG. 4 shows the slide member 7 of the hanging rod 7.
Another embodiment is shown in which the connecting curved tube 3 is directly attached to a and the sliding member 7a is configured to be long so that the connecting curved tube 3 can move smoothly along the movable rod 6.

FIGS. 5 and 6 show a plurality of (three in this embodiment) connecting curved pipes 3 ′, 3 ′ and 3 ′ suspended from a suspension rod 7 to absorb displacements of a plurality of pipe joints. 10 shows another embodiment made possible.

FIG. 7 shows the slide members 6 a and 7
This shows another sliding mechanism composed of two sets of rails 11 and sliders 12 and one set of rails 13 and sliders 14 instead of the sliding mechanism shown in FIG.

FIG. 8 shows the flexible tube 1 and the flexible tube 2 formed as one flexible rod 8 omitting the connection curved tube 3.
This is another embodiment in which an intermediate portion of the flexible rod 8 is suspended by a suspension rod 7. Also, the pipes P1 and P2 can be oriented parallel to each other.

In each of the above embodiments, the slide member and the like slide along the fixed rod and the movable rod. However, rolling means such as a pulley may be employed. At least one of the fixed rod and the movable rod may have a structure in which a cable such as a wire or a rope is stretched.

[0022]

[Effects of the Invention] 1) The structure and construction are simple and can be installed at low cost. 2) There is no risk of strain on piping and joints due to external forces such as earthquakes.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of a suspension device for a displacement absorbing joint in piping equipment of the present invention.

FIG. 2 is a plan view showing another embodiment of the structure and arrangement of the flexible tube.

FIG. 3 is an explanatory view showing another embodiment in which the height of a fixed rod is adjustable.

FIG. 4 is an explanatory view showing another embodiment in which a hanging rod is omitted.

FIG. 5 is an explanatory view of another embodiment in which a plurality of pipe joints are suspended.

FIG. 6 is an explanatory view of still another embodiment in which a plurality of pipe joints are suspended.

FIG. 7 is an explanatory view showing another embodiment of the sliding mechanism.

FIG. 8 is an explanatory view showing another embodiment in which one flexible rod is suspended.

FIG. 9 is an explanatory view showing a conventional variable support device for a displacement absorption joint.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Flexible tube 2 Flexible tube 3 Connecting curved tube 4 Fixed rod 4a Fixed part 5 Fixed rod 5a Fixed part 6 Movable rod 6a Slide member 7 Suspended rod 7a Slide member 8 Flexible rod P1, P2 Piping 16

Claims (2)

[Claims] 1. A piping system installed between a foundation fixed on the ground and a structure body constructed on the foundation via seismic isolation means, wherein both pipes of the foundation and the structure body are connected. A suspension device for a displacement absorption joint in piping equipment, characterized in that a displacement absorption joint to be connected to each other is suspended so as to be movable in all horizontal directions by guide means provided on either the foundation or the structure body. . 2. The guide means comprises two parallel fixed guide means attached to one of the foundation and the structure main body, and a movable movable parallel to the fixed guide means in the longitudinal direction thereof. 2. A suspension for a displacement absorbing joint in piping equipment according to claim 1, wherein said suspension means comprises means for suspending an intermediate portion of said displacement absorbing means so as to be movable in a longitudinal direction of said movable guiding means. Equipment.