WO2023140167A1

WO2023140167A1 - Conduit support device

Info

Publication number: WO2023140167A1
Application number: PCT/JP2023/000565
Authority: WO
Inventors: 竜央馬山口; 治佐々; 基史古林
Original assignee: 日本発條株式会社
Priority date: 2022-01-24
Filing date: 2023-01-12
Publication date: 2023-07-27
Also published as: JP2023107377A

Abstract

This conduit support device comprises a base ring, a spring, a hanger plate, a pair of guide rods, a spring washer, a pair of fixed rods, and a turnbuckle. The spring is positioned above the base ring and overlaps with the base ring. The hanger plate is positioned above the spring. The pair of guide rods are fixed to the hanger plate and extend downward from the hanger plate to sandwich the spring therebetween. The spring washer is positioned between the spring and the hanger plate, is configured to reversibly slide up and down along the guide rods, and has an opening overlapping with the inner side of the spring. The pair of fixed rods are disposed so as to penetrate the opening, the inner side of the spring, and the base ring, and fix the hanger plate to the base ring. The turnbuckle is suspended from the spring washer and surrounded by the spring and the base ring.

Description

Pipe support device

One of the embodiments of the present invention relates to a piping support device.

Piping is one way to transport fluids. As the fluid inside the pipe flows, weight and temperature changes occur, causing the pipe to move. It is the pipe support device that follows the movement while generating a constant reaction force. For example, the piping support device disclosed in Patent Document 1 has a configuration in which springs are arranged as elastic bodies above and below the piping.

Japanese Unexamined Patent Application Publication No. 2011-12778

One of the objects of the embodiments of the present invention is to provide a piping support device with a novel structure. Alternatively, one of the objects of the embodiments of the present invention is to provide a piping support device that is highly durable, easy to maintain, and lightweight.

One of the embodiments of the present invention is a pipe support device. A pipe support device includes a base ring, a spring, a hanger plate, a pair of guide rods, a spring seat, a pair of fixing rods, and a turnbuckle. A spring sits on and overlaps the base ring. A hanger plate is located on the spring. A pair of guide rods are fixed to the hanger plate and extend down from the hanger plate to sandwich the spring. A spring seat is located between the spring and the hanger plate, is configured to reversibly slide up and down along the guide rod, and has an opening overlapping the inside of the spring. A pair of fixation rods are positioned through the opening, inside the spring, and through the base ring to secure the hanger plate to the base ring. A hook is suspended from the spring seat and surrounded by the spring and the base ring.

BRIEF DESCRIPTION OF THE DRAWINGS The typical perspective view of the piping support apparatus which concerns on embodiment of this invention. BRIEF DESCRIPTION OF THE DRAWINGS The typical side view of the piping support apparatus which concerns on embodiment of this invention. BRIEF DESCRIPTION OF THE DRAWINGS The typical side view of the piping support apparatus which concerns on embodiment of this invention. BRIEF DESCRIPTION OF THE DRAWINGS The typical top view of the piping support apparatus which concerns on embodiment of this invention. BRIEF DESCRIPTION OF THE DRAWINGS The typical side view of the piping support apparatus which concerns on embodiment of this invention. BRIEF DESCRIPTION OF THE DRAWINGS The typical side view of the piping support apparatus which concerns on embodiment of this invention. BRIEF DESCRIPTION OF THE DRAWINGS The typical side view of the piping support apparatus which concerns on embodiment of this invention.

Hereinafter, each embodiment of the invention disclosed in this application will be described with reference to the drawings. However, the present invention can be embodied in various forms without departing from the gist thereof, and should not be construed as being limited to the description of the embodiments exemplified below.

In order to make the explanation clearer, the drawings may schematically show the width, thickness, shape, etc. of each part compared to the actual embodiment, but this is only an example and does not limit the interpretation of the present invention. In addition, in this specification and each drawing, elements having the same functions as those described with respect to the previous drawings may be denoted by the same reference numerals, and redundant description may be omitted.

In the present specification and drawings, the same reference numerals are used when referring to a plurality of identical or similar configurations as a whole, and a hyphen and a number are added after the reference numerals when describing them individually. When a plurality of parts of one configuration are separately described, the same reference numerals are used, and alphabetic characters are used.

In the present specification and claims, to integrate a plurality of elements means that the plurality of elements have different functions but are formed from one member and have a continuous configuration. The integrated elements therefore contain the same materials and have the same composition.

A pipe support device 100, which is one embodiment of the present invention, will be described below. The pipe support device 100 has the function of supporting the pipe and following the movement of the pipe due to changes in heat and weight. In the drawings used in the following description, for convenience, the vertical direction is the z-direction, and the horizontal plane perpendicular to the z-direction is the xy plane. Although the details will be described later, the x direction is the direction that connects the central axes of the pair of guide rods 112 and is perpendicular to the z direction. The y direction is orthogonal to the z and x directions.

1. Overall Structure A perspective view of the pipe support device 100 is schematically shown in FIG. 1, a side view observed from the y direction is shown in FIG. 2, and a side view observed from the x direction is shown in FIG. The piping support device 100 includes a hanger plate 104, a base ring 110, a spring seat 106, a spring 108, a pair of guide rods 112, a pair of fixing rods 102, and a turnbuckle 116 as a basic configuration. These structures are formed using metals such as iron and stainless steel. These configurations will be described in detail below.

2. Base Ring Base ring 110 is a ring-shaped part with an opening in the center that supports spring 108 . For this reason, the opening is provided such that its diameter is smaller than the outer diameter of spring 108 . Preferably, the opening is provided such that the diameter is smaller than the inner diameter of spring 108 . As will be described later, the fixed rod 102 prevents the spring 108 from moving in the xy plane, thereby preventing the spring 108 from falling out of the pipe support device 100 . For this reason, it is not necessary to provide a structure (unevenness, ribs, etc.) on the top surface of the base ring 110 to prevent movement of the spring 108, and the top surface of the base ring 110 may be flat throughout.

3. Hanger Plate and Guide Rods The hanger plate 104 is positioned on the base ring 110 and is a part for supporting a pair of guide rods 112 . The guide rod 112 is a bolt having a head 112a at its upper end, and a screw thread (not shown) is provided on the threaded portion thereof. The hanger plate 104 is provided with an opening through which the threaded portion of the guide rod 112 passes but the head 112a does not pass. By inserting the guide rod 112 into this opening and fixing it with the nut 120 , the hanger plate 104 and the guide rod 112 are fixed to each other with the guide rod 112 extending downward (z direction) from the hanger plate 104 . As described above, the x-direction is the direction that connects the central axes of the pair of guide rods 112 extending in the z-direction and that is perpendicular to the z-direction.

4. Spring Seats, Springs, and Turnbuckles Spring 108 is positioned above base ring 110 with its central axis in the z-direction and provided between spring seat 106 and base ring 110 in a compressed state. The spring 108 is sandwiched between the base ring 110 and the spring seat 106, but is not welded or bolted.

As shown in FIG. 1, both ends of the spring seat 106 are provided with a pair of cutouts that sandwich the guide rod 112 . Although not shown, instead of the pair of cutouts, the spring seat 106 may be provided with a pair of openings into which the guide rod 112 can be inserted. As an optional configuration,

hole nuts

124 and 126 may be attached to the notches or openings of the spring seat 106 so as to sandwich the spring seat 106 . Washers are appropriately inserted between the nut 124 and the spring seat 106 and between the nut 126 and the spring seat 106 . Nut 124 and nut 126 surround guide rod 112 but slide over guide rod 112 . Therefore, the spring seat 106 can reversibly slide along the guide rod 112 in the z-direction (i.e., up and down) along with the vertical movement of the pipe, i.e., the vertical movement of the turnbuckle 116, without being removed from the guide rod 112. Each guide rod 112 is provided with two upper and

lower nuts

128 and 130 that mesh with the threads.

Nuts

128 , 130 are positioned in the z-direction by rotating about guide rod 112 . Therefore, the positions of the upper and lower limits of the spring seat 106 are determined by adjusting the positions of the

nuts

128 and 130 .

The spring seat 106 is further provided with an opening (or slit; hereinafter the same) 106a through which the pair of fixed rods 102 pass. One opening 106a may be provided, or a pair of openings 106a may be provided, and the spring seat 106 may be configured such that one fixing rod 102 passes through each opening 106a. As can be seen from the schematic top view (FIG. 4) showing the positional relationship in the z direction of the spring seat 106 and its opening 106a, the spring 108, and the base ring 110, the opening 106a is provided so as to overlap the inner side of the spring 108 and the opening 110a of the base ring 110 in the z direction. A portion of opening 106a may overlap spring 108 and base ring 110 in the z-direction. When a pair of fixed rods 102 pass through one opening 106a, the longitudinal direction of the opening 106a may be aligned with the y-direction, or may be inclined within a range of ±90° from the y-direction (not shown).

As will be described later, the fixed rod 102 prevents the spring 108 from moving within the xy plane, thereby preventing the spring 108 from falling off the pipe support device 100 . Therefore, like the upper surface of the base ring 110, the lower surface of the spring seat 106 does not need to be provided with a structure (unevenness, ribs, etc.) to prevent the movement of the spring 108, and the entire lower surface of the spring seat 106 may be flat.

The turnbuckle 116 is arranged so that its longitudinal direction faces the z-direction, and its upper end is fixed to the spring seat 106 by welding or bolts 132 or the like. When using the bolt 132, the bolt 132 may be inserted into the opening 106a. The turnbuckle 116 is arranged so as to be surrounded by the spring 108 and the base ring 110 while suspended from the spring seat 106 . On the other hand, a piping fixture 140 for connecting the piping and the turnbuckle 116 is connected to the lower end. The method of fixing the turnbuckle 116 and the pipe fixture 140 is arbitrary.

5. Fixed Rods A pair of fixed rods 102 extend in the z-direction and pass through openings 106 a of spring seats 106 . A pair of fixed rods 102 are further surrounded by springs 108 and base rings 110 . That is, a pair of fixed rods 102 extend inside springs 108 . The pair of fixed rods 102 may be arranged so as to overlap in the y direction, as shown in FIGS. The cross-sectional shape of the fixed rod 102 on the xy plane may also be determined arbitrarily, and may be a square, a circle, an ellipse, or composed of curved lines and straight lines.

Furthermore, as shown in FIGS. 1 and 3, each of the pair of fixed rods 102 is bent so that its lower end extends perpendicularly to the z-direction. Therefore, the portion extending perpendicular to the z-direction is located under the spring 108 and the base ring 110, overlaps the spring 108 and the base ring 110, and functions as a support portion 102a that supports the base ring 110 (see FIG. 4). The support portions 102a of the pair of fixed rods 102 are preferably configured to extend in directions opposite to each other. Although the support portion 102a contacts the base ring 110, it need not be fixed to the base ring 110 by welding, bolting, or the like.

On the other hand, the upper ends of the fixed rods 102 may be connected to each other via hooking plates 114 overlapping the hanger plates 104 . A pair of fixed rods 102 may be integrated with the hooking plate 114 . In this case, a pair of fixed rods 102 and hooking plate 114 straddle the hanger plate 104 . In other words, the portion positioned above the upper surface of the hanger plate 104 can be regarded as the hooking plate 114 , and the rest of the portion sandwiching the hanger plate 104 can be regarded as the fixing rod 102 . The hooking plate 114 and the fixed rod 102 may be fixed to the hanger plate 104 by welding, bolting, or the like. However, the restoring force of the compressed spring 108 acts to push the spring seat 106 upward, and as a result, the guide rod 112 and the hanger plate 104 are also subjected to upward force via the nut 128 . Therefore, the hanger plate 104 may be fixed to the hooking plate 114 or the fixed rod 102 using only the frictional force generated by this force. The support portion 102 a and the base ring 110 are also fixed to each other by frictional force resulting from the restoring force of the spring 108 .

The hanger plate 104 has an opening 114a formed in a direction perpendicular to the z-direction, and by using this, the pipe support device 100 can be hung at an appropriate position. There are no restrictions on the size and shape of the opening 114a, and the size and weight of the pipe support device 100 and the pipe to be supported may be taken into consideration when designing the opening 114a.

Alternatively, as shown in FIGS. 5A and 5B, the fixing rod 102 may be provided so as to extend downward from the lower surface or side surface of the hanger plate 104 . In this case, the fixed rod 102 is fixed to the hanger plate 104 by welding, bolting, or the like. On the other hand, a hanging ring 134 for hanging the piping support device 100 is provided on the upper surface of the hanger plate 104 . As with the opening 114a, the structure of the suspension ring 134 is not restricted, and is appropriately designed in consideration of the size and weight of the pipe support device 100 and the pipe to be supported.

As described above, spring 108 is placed between base ring 110 and spring seat 106 in a compressed state. Therefore, the restoring force of the spring 108 always applies an upward force to the spring seat 106 , so in the initial state, the spring seat 106 assumes the upper limit position determined by the nut 128 . That is, the pipe support device 100 takes a state in which the nut 124 and the nut 128 are in contact with each other. Therefore, an upward force is also applied to the hanger plate 104 via the guide rod 112 . However, as shown in FIGS. 1, 2, 5A and 5B, the supports 102a of the pair of fixed rods 102 extending from the hooking plate 114 or hanger plate 104 are located below the base ring 110. FIG. Therefore, the hanger plate 104 is kept in contact with the hooking plate 114 and the distance between the hanger plate 104 and the base ring 110 is fixed.

When the fluid passes through the pipe, the pipe is displaced downward due to the weight and heat of the fluid. Following this displacement, the turnbuckle 116 moves downward (see the arrow in FIG. 2), the spring seat 106 moves downward along the guide rod 112, and the spring 108 is compressed (FIG. 6). Since the restoring force generated at this time acts upward, the turnbuckle 116 follows the vertical displacement of the pipe. As a result, it is possible to effectively prevent damage to equipment caused by breakage of the pipes and vertical movement of the pipes.

As described above, the spring 108 is sandwiched between the base ring 110 and the spring seat 106, but not welded or bolted. Therefore, as the spring 108 expands and contracts, a rotating force is also applied around its central axis extending in the z direction, and this may cause movement in the xy plane. Such movement can cause spring 108 to fall out. Also, depending on the number of turns, pitch, length, coil diameter d (see FIG. 2), center diameter, etc. of the spring 108, a buckling phenomenon may occur during the expansion and contraction process. However, the pipe support device 100 is provided with a pair of fixed rods 102 extending inside the springs 108 in the z-direction. For this reason, even if the spring 108 moves within the xy plane, it interferes with the fixed rod 102, and as a result, it is possible to prevent the spring 108 from coming off or buckling.

The piping support device 100 having the above configuration can effectively prevent the spring 108 from coming off or buckling without using a cover or the like to cover the side surface of the spring 108 . Therefore, it is possible to reduce the weight of the pipe support device 100, and at the same time ensure high air permeability for the spring 108 and the turnbuckle 116 arranged therein. Therefore, corrosion due to rainwater or the like can be greatly suppressed, and the durability of the pipe support device 100 is improved. Moreover, since substantially the entire spring 108 and turnbuckle 116 can be visually observed from the outside, the states of the spring 108 and turnbuckle 116 can be easily grasped. Therefore, even if each part such as the spring 108 and the turnbuckle 116 is damaged, it can be detected early. This enables easy maintenance work and contributes to high efficiency of maintenance work. Moreover, since the pipe support device 100 can be connected and fixed only by bolting without welding each component, it can be manufactured at low cost.

Each of the embodiments described above as embodiments of the present invention can be implemented in combination as appropriate as long as they do not contradict each other. Moreover, additions, deletions, or design changes made by those skilled in the art based on each embodiment are also included in the scope of the present invention as long as they are within the gist of the present invention.

In addition, it is understood that other effects that are obvious from the description of the present specification or that can be easily predicted by a person skilled in the art, even if they are different from the effects brought about by each of the above-described embodiments, are naturally brought about by the present invention.

100: Pipe support device, 102: Fixed rod, 102a: Support portion, 104: Hanger plate, 106: Spring seat, 106a: Opening, 108: Spring, 110: Base ring, 110a: Opening, 112: Guide rod, 112a: Head, 114: Hooking plate, 114a: Opening, 116: Turnbuckle, 116a: Opening, 120: Nut, 124: Nut, 12 6: nut, 128: nut, 130: nut, 132: bolt, 134: suspension ring, 140: piping fixture

Claims

base ring,
a spring located on the base ring and overlapping the base ring;
said sprung hanger plate;
a pair of guide rods fixed to and extending downwardly from the hanger plate and sandwiching the spring;
a spring seat positioned between the spring and the hanger plate, configured to reversibly slide up and down along the guide rod, and having an opening overlapping the inside of the spring;
A piping support device comprising: a pair of fixing rods arranged to pass through the opening, the inside of the spring, and the base ring to fix the hanger plate to the base ring; and a turnbuckle suspended from the spring seat and surrounded by the spring and the base ring.
The pair of fixed rods are connected to each other via hooking plates,
The pipe support device according to claim 1, wherein the hooking plate is positioned on the hanger plate and overlaps the hanger plate.
The pipe support device according to claim 2, wherein the pair of fixed rods and the hooking plate are integrated.
The pipe support device according to claim 2, wherein the hooking plate has an opening extending in a direction perpendicular to the central axis of the spring.
The pipe support device according to claim 1, wherein the pair of fixed rods are connected to the lower surface or side surface of the hanger plate.
The pipe support device according to claim 5, wherein the hanger plate has a hanging ring on its upper surface.
Each of the pair of fixed rods has a support portion extending perpendicularly to the central axis of the spring at its lower end,
The piping support device according to claim 1, wherein the support portion overlaps with the base ring and supports the base ring.