Pipe support device

Abstract

To provide a piping support device having high durability, easy maintenance, and reduced weight.SOLUTION: The pipe support device includes a hanger plate, a base plate, a spring seat, a pair of connecting rods, a spring, a turnbuckle, and at least one of a lower spring guide and an upper spring guide. The base plate is located under the hanger plate and has a through hole. The spring seat is sandwiched between the hanger plate and the base plate and is configured to reversibly slide between the hanger plate and the base plate. A pair of connecting rods connect the hanger plate and the base plate, maintain a distance between the hanger plate and the base plate, and pass through the spring seat. The spring is located between the base plate and the spring seat. The turnbuckle is connected to the spring seat and is surrounded by the spring and the through hole. The configurations of the lower spring guide and the upper spring guide are described in detail in the specification.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] One embodiment of the present invention relates to a pipe support device. [Background technology]

[0002] Piping is one method for transporting fluids. When fluid flows inside a pipe, weight and temperature changes occur, causing the pipe to move. A pipe support device follows this movement while generating a certain reaction force. For example, the pipe support device disclosed in Patent Document 1 has a configuration in which springs are arranged above and below the pipe as elastic bodies. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2011-12778 Summary of the Invention [Problem to be solved by the invention]

[0004] An object of an embodiment of the present invention is to provide a pipe support device having a novel structure, or to provide a pipe support device that is highly durable, easy to maintain, and lightweight. [Means for solving the problem]

[0005] One embodiment of the present invention is a piping support device. The piping support device includes a hanger plate, a base plate, a spring seat, a pair of connecting rods, a spring, a turnbuckle, and at least one of a lower spring guide and an upper spring guide. The base plate is located below the hanger plate and has a through hole. The spring seat is sandwiched between the hanger plate and the base plate and configured to reversibly slide between the hanger plate and the base plate. The pair of connecting rods connect the hanger plate and the base plate, maintain the distance between the hanger plate and the base plate, and pass through the spring seat. The spring is located between the base plate and the spring seat. The turnbuckle is connected to the spring seat and is surrounded by the spring and the through hole. The lower spring guide is located on the base plate and includes a pair of first guides in contact with the base plate. The pair of first guides each have a first opening through which the connecting rod passes, and face each other so as to sandwich the spring in the direction of extension of a first straight line connecting the first openings. The upper spring guide is located below the spring seat and includes a pair of second guides in contact with the spring seat. The pair of second guides each have a second opening through which the connecting rod passes, and face each other so as to sandwich the spring in the direction in which a second straight line connecting the second openings extends.

[0006] One embodiment of the present invention is a piping support device. The piping support device includes a hanger plate, a base plate, a spring seat, a pair of connecting rods, a spring, and at least one of a lower guide ring and an upper guide ring. The base plate is located below the hanger plate and has a through hole. The spring seat is sandwiched between the hanger plate and the base plate and configured to reversibly slide between the hanger plate and the base plate. The pair of connecting rods connect the hanger plate and the base plate, maintain the distance between the hanger plate and the base plate, and pass through the spring seat. The spring is located between the base plate and the spring seat. The turnbuckle is connected to the spring seat and is surrounded by the spring and the through hole. The lower guide ring is located on the base plate, contacts the base plate, is surrounded by the spring, and surrounds the turnbuckle. The upper guide ring is located below the spring seat, contacts the spring seat, is surrounded by the spring, and surrounds the turnbuckle. [Brief explanation of the drawings]

[0007] [Figure 1] 1 is a schematic perspective view of a pipe support device according to an embodiment of the present invention. [Figure 2] 1 is a schematic side view of a pipe support device according to an embodiment of the present invention. [Figure 3] 1 is a schematic side view of a pipe support device according to an embodiment of the present invention. [Figure 4] 1 is a schematic top view of a pipe support device according to an embodiment of the present invention. [Figure 5] FIG. 2 is a schematic bottom view of the pipe support device according to the embodiment of the present invention. [Figure 6] 1 is a schematic side view of a pipe support device according to an embodiment of the present invention. [Figure 7] 1 is a schematic side view of a pipe support device according to an embodiment of the present invention. [Figure 8] 1 is a schematic side view of a pipe support device according to an embodiment of the present invention. [Figure 9] 1 is a schematic side view of a pipe support device according to an embodiment of the present invention. [Figure 10] 1A and 1B are schematic top and bottom views of a pipe support device according to an embodiment of the present invention. [Figure 11] 1 is a schematic perspective view of a pipe support device according to an embodiment of the present invention. [Figure 12] 5 is a schematic diagram showing the relationship between a spring and a connecting rod of the pipe support device according to the embodiment of the present invention. FIG. [Figure 13] 1 is a schematic side view of a pipe support device according to an embodiment of the present invention. [Figure 14] 1A and 1B are schematic top and bottom views of a pipe support device according to an embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0008] 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 spirit of the invention, and should not be construed as being limited to the description of the embodiments exemplified below.

[0009] In order to clarify the description, the drawings may show the width, thickness, shape, etc. of each part schematically compared to the actual embodiment, but these are merely examples and do not limit the interpretation of the present invention. Furthermore, in this specification and each drawing, elements having the same functions as those explained in the previous drawings may be assigned the same reference numerals, and duplicate explanations may be omitted.

[0010] In this specification and drawings, the same reference numeral is used to collectively represent multiple identical or similar components, and a hyphen and a number are added after the reference numeral to represent each of the components individually. When multiple parts of a single component are to be distinguished from one another, the same reference numeral and alphabetic characters are used.

[0011] In this specification and claims, "integrated" means that the elements have different functions but are formed from a single member and have a continuous structure. Therefore, the integrated elements contain the same material and have the same composition.

[0012] First Embodiment In this embodiment, a pipe support device 100, which is one embodiment of the present invention, will be described. The pipe support device 100 supports pipes and has the function of following the movement of the pipes due to changes in heat or weight. For convenience, in the drawings used in the following description, the vertical direction is defined as the z direction, and the horizontal plane perpendicular to the z direction is defined as the xy plane. Furthermore, as will be described in detail later, the direction connecting the central axes of a pair of connecting rods and perpendicular to the z direction is defined as the x direction. The y direction is perpendicular to the z direction and the x direction.

[0013] 1.Overall structure A schematic perspective view of the piping support device 100 is shown in FIG. 1, and a side view thereof is shown in FIG. 2. The piping support device 100 basically comprises a hanger plate 104, a base plate 110, a spring seat 106, a spring 108, a turnbuckle 116, and a pair of connecting rods 118. The piping support device 100 further comprises at least one of a lower spring guide 112 and an upper spring guide 114. These components are formed using metal such as iron or stainless steel. These components will be described in detail below.

[0014] 1-1. Hanger plate The hanger plate 104 is a part for suspending the piping support device 100. A hanging ring 102 for suspending the piping support device 100 can be provided on the hanger plate 104. As will be easily understood from the following description, the piping supported by the piping support device 100 is provided below the turnbuckle 116. Therefore, when the hanger plate 104 is arranged, the piping support device 100 is suspended using the hanging ring 102, and the base plate 110, spring seat 106, spring 108, turnbuckle 116, etc. are positioned below the hanger plate 104. There are no restrictions on the configuration of the hanging ring 102, and it may be designed appropriately taking into account the size and weight of the piping support device 100 and the piping it supports.

[0015] The hanger plate 104 is provided with through holes through which a pair of connecting rods 118 can pass, and the connecting rods 118 and the hanger plate 104 are fixed by nuts 120. Therefore, the relative positions of the hanger plate 104 and the connecting rods 118 are fixed.

[0016] 1-2.Base plate The base plate 110 is positioned below the hanger plate 104 and faces the hanger plate 104 in the z-direction. The hanger plate 104 also has a pair of openings through which a pair of connecting rods 118 pass, and the connecting rods 118 and the base plate 110 are fixed by nuts 122. Therefore, the relative positions of the base plate 110 and the connecting rods 118 are also fixed. The pair of openings in the base plate 110 are arranged to overlap with the pair of openings in the hanger plate 104 in the z-direction. Therefore, by passing the connecting rods 118 through the openings in the base plate 110 and the hanger plate 104 and fixing the connecting rods 118 to the base plate 110 and the hanger plate 104 with nuts 120 and 122, respectively, the pair of connecting rods 118 are arranged vertically, and the base plate 110 and the hanger plate 104 can be arranged parallel to each other. At the same time, the distance between the base plate 110 and the hanger plate 104 is maintained.

[0017] The base plate 110 further has a through hole 110a between the pair of openings (see FIG. 1). The through hole 110a is provided to prevent interference between the turnbuckle 116 and the base plate 110 when the turnbuckle 116 slides up and down. In other words, the through hole 110a is formed to surround the turnbuckle 116 and to have a size that does not interfere with the base plate 110 even when the turnbuckle 116 moves in the x direction and / or y direction when moving in the z direction. Preferably, the pair of openings and the through hole 110a are formed so that the center of the through hole 110a is located on a straight line connecting the centers of the pair of openings of the base plate 110.

[0018] 1-3.Connecting rod As described above, the connecting rod 118 is a part that passes through the openings in the hanger plate 104 and the base plate 110 to secure the hanger plate 104 and the base plate 110 together and maintain a constant distance between them. The connecting rod 118 has a screw thread on its side, which allows the nuts 120 and 122 to mesh with the connecting rod 118. As described above, the direction that connects the central axes of the pair of connecting rods 118 extending in the z direction and is perpendicular to the z direction is the x direction.

[0019] 1-4.Spring seat The spring seat 106 is located between the hanger plate 104 and the base plate 110 in the z direction and is configured to reversibly slide in the z direction as the piping moves up and down. More specifically, the spring seat 106 is also provided with a pair of openings that overlap with the openings of the hanger plate 104 and the base plate 110 in the z direction, and the spring seat 106 is positioned so that the connecting rod 118 passes through these openings. A pair of nuts 124 and 126 that are engaged with the connecting rod 118 are disposed above and below the spring seat 106, respectively. The positions of the nuts 124 and 126 in the z direction are determined by rotating them around the connecting rod 118. Therefore, by adjusting the positions of the nuts 124 and 126, the upper and lower limit positions of the spring seat 106 are determined, and the spring seat slides in the z direction between the nuts 124 and 126.

[0020] 1-5. Springs and turnbuckles The spring 108 is provided between the base plate 110 and the spring seat 106. The spring 108 is preferably disposed in a compressed state between the base plate 110 and the spring seat 106. The spring 108 is sandwiched between the base plate 110 and the spring seat 106, but is not welded or bolted. The turnbuckle 116 is disposed so that its longitudinal direction is in the z direction, and its upper end is fixed to the spring seat 106 by welding or bolts 128, etc., and is disposed so as to pass through an opening 110b in the base plate 110. Meanwhile, a piping fixture 150 that connects the piping to the turnbuckle 116 is connected to its lower end. The method for fixing the turnbuckle 116 and the piping fixture 150 is arbitrary; for example, the turnbuckle 116 and the piping fixture 150 may be connected by bolting using an opening 116a provided at the lower end of the turnbuckle 116.

[0021] When a fluid passes through the pipe, the weight and heat of the fluid cause a downward displacement of the pipe. In response, the turnbuckle 116 moves downward (see the arrow in Figure 2), compressing the spring 108 (Figure 3). The restoring force generated at this time acts upward, so it follows the vertical displacement of the pipe. As a result, it is possible to effectively prevent damage to the equipment caused by breakage of the pipe or vertical movement of the pipe.

[0022] 1-6. Lower spring guide and upper spring guide As described above, the spring 108 is sandwiched between the base plate 110 and the spring seat 106, but is not welded or bolted. Therefore, as the spring 108 expands or contracts, a force is also applied to rotate the spring 108 around its central axis extending in the z direction, which can cause it to move within the xy plane. Such movement can lead to the spring 108 falling off. Furthermore, depending on the number of turns, pitch, length, coil diameter d (see FIG. 2), and central diameter of the spring 108, buckling can occur during the expansion or contraction process. To prevent such buckling or falling off of the spring 108, the piping support device 100 is provided with at least one of a lower spring guide 112 and an upper spring guide 114.

[0023] (1) Lower spring guide FIG. 4(A) shows a schematic top view of the piping support device 100. For clarity, only the base plate 110, spring 108, and lower spring guide 112 are shown in solid lines, and the turnbuckle 116 is shown in dotted lines. The lower spring guide 112 may be composed of, for example, a pair of guides (hereinafter referred to as first guides) 112-1 and 112-2. The lower spring guide 112 is provided on the base plate 110 and contacts the base plate 110. Each of the pair of first guides 112-1 and 112-2 has an opening 112b that overlaps with the opening 110b of the base plate 110 in the z-direction, and the connecting rod 118 passes through the opening 114b and the opening 112b. Therefore, each of the first guides 112-1 and 112-2 is fixed to the base plate 110 by being sandwiched between a nut 122 and the base plate 110. The thickness (length in the z direction; the same applies below) of each of the pair of first guides 112-1, 112-2 may be, for example, at least 0.5 times the coil diameter d of the spring 108, which prevents the spring 108 from moving over the pair of first guides 112-1, 112-2. Note that the upper limit of the thickness of the pair of first guides 112-1, 112-2 may be twice the coil diameter d.

[0024] In the direction in which a straight line connecting the centers of the two openings 114b of the base plate 110 extends (i.e., the x direction), the pair of first guides 112-1 and 112-2 face each other and sandwich the spring 108. As shown in FIG. 4(B), the facing surfaces of the pair of first guides 112-1 and 112-2 may be curved to fit the shape of the spring 108. The presence of the curved surface 112a allows a portion of the spring 108 to be surrounded by the pair of first guides 112-1 and 112-2, and the spring 108 can also overlap with the first guides 112-1 and 112-2 in the y direction. As a result, the curved surface 112a restricts movement in the x direction and also restricts movement in the y direction, preventing the spring 108 from falling off. The pair of first guides 112-1, 112-2 may be provided so as to be in contact with the spring 108, or may be provided so as to be spaced apart from the spring 108. However, to prevent the spring 108 from moving in the y direction and falling off, the distance between the pair of first guides 112-1, 112-2 is adjusted so that they overlap a portion of the spring 108 in the y direction.

[0025] The lower spring guide 112 may be integrated with the base plate 110. This reduces the number of parts of the piping support device 100. The pair of first guides 112-1 and 112-2 may also be integrated with each other. For example, as shown in FIG. 4(C), the pair of first guides 112-1 and 112-2 may be integrated by a pair of bridges 112c. The bridges 112c have an arc shape that follows the shape of the spring 108 and are configured to contact the base plate 110. The bridges 112c are also spaced apart from the spring seat 106. By integrating the pair of first guides 112-1 and 112-2 with the bridges 112c, it is possible to more effectively prevent the spring 108 from falling off or buckling.

[0026] (2) Upper spring guide The same is true for the upper spring guide 114. Figure 5(A) shows a schematic bottom view of the piping support device 100. For clarity, only the spring seat 106, the spring 108, and the upper spring guide 114 are shown in this figure. Like the lower spring guide 112, the upper spring guide 114 can be configured, for example, with a pair of guides (hereinafter referred to as second guides) 114-1 and 114-2. The upper spring guide 114 is provided below the spring seat 106 and contacts the spring seat 106. Each of the pair of second guides 114-1 and 114-2 has an opening 114b that overlaps with the opening 106b of the spring seat 106 in the z-direction, and the connecting rod 118 passes through the openings 106b and 114b. Each of the second guides 114-1 and 114-2 can be fixed to the spring seat 106 by welding or using bolts and nuts (not shown). The thickness of each of the pair of second guides 114-1 and 114-2 may also be selected from the range of 0.5 to 2 times the coil diameter d of the spring 108, for example.

[0027] The pair of second guides 114-1 and 114-2 face each other in the direction in which a line connecting the centers of the two openings 106b of the spring seat 106 extends (i.e., the x direction), sandwiching the spring 108. As shown in FIG. 5B , the facing surfaces of the pair of second guides 114-1 and 114-2 may also be curved to conform to the shape of the spring 108. The curved surface 114a allows a portion of the spring 108 to be surrounded by the pair of second guides 114-1 and 114-2, allowing the spring 108 to overlap with the pair of second guides 114-1 and 114-2 in the y direction. As a result, movement in the x and y directions is restricted, preventing the spring 108 from falling off. The pair of second guides 114-1 and 114-2 may be provided so as to contact the spring 108 or may be provided so as to be spaced apart from the spring 108. However, in order to prevent the spring 108 from moving in the y direction and falling off, the distance between the pair of second guides 114-1 and 114-2 is adjusted so that they overlap a portion of the spring 108 in the y direction.

[0028] Like the lower spring guide 112, the upper spring guide 114 may be integrated with the spring seat 106. The pair of second guides 114-1 and 114-2 may also be integrated with each other. For example, as shown in FIG. 5(C), the pair of second guides 114-1 and 114-2 may be integrated by a pair of bridges 114c. Like the bridges 112c, the bridges 114c also have an arc shape that follows the shape of the spring 108 and are configured to contact the spring seat 106. The bridges 114c are also spaced apart from the base plate 110. By integrating the pair of second guides 114-1 and 114-2 with the bridges 114c, it is possible to more effectively prevent the spring 108 from falling off or buckling.

[0029] The pipe support device 100 having the above configuration can effectively prevent the spring 108 from falling off or buckling without using a cover or the like to cover the side surface of the spring 108. This allows the weight of the pipe support device 100 to be reduced, while ensuring high breathability for the spring 108 and the turnbuckle 116 disposed therein. This significantly reduces corrosion caused by rainwater and improves the durability of the pipe support device 100. Furthermore, since almost the entire spring 108 and turnbuckle 116 can be visually inspected from the outside, the condition of the spring 108 and turnbuckle 116 can be easily grasped. Therefore, damage to parts such as the spring 108 and turnbuckle 116 can be detected early. This allows for easy maintenance work and contributes to high efficiency in maintenance work.

[0030] Second Embodiment This embodiment describes a modified example of the pipe support device 100 described in the first embodiment. Description of configurations that are the same as or similar to those described in the first embodiment may be omitted.

[0031] As shown in the schematic side views of FIGS. 6(A) and 6(B), the piping support device 100 may further include a pair of lower stoppers 130 as a mechanism for preventing the spring 108 from falling off or buckling, instead of or in addition to the lower spring guide 112 and the upper spring guide 114. Each lower stopper 130 is fixed to the base plate 110 by welding or bolting. Each lower stopper 130 extends from the base plate 110 in the z direction, i.e., toward the spring seat 106. The pair of lower stoppers 130 are arranged to sandwich the spring 108 when observed from the z direction. The width w (length in the x or y direction) of each lower stopper 130 may be selected, for example, from a range of 5% to 30% or from 10% to 20% of the outer diameter D0 of the spring 108 (see FIG. 6(A)). Furthermore, the height of each lower stopper 130, more specifically, the length l in the z direction of the portion of each lower stopper 130 above the upper surface of the base plate 110, may be selected from the range of 20% to 50% or 25% to 40% of the length L of the spring 108 (see FIG. 6(B)). Therefore, each lower stopper 130 is spaced apart from the spring seat 106.

[0032] Each lower stopper 130 may be fixed to a side surface of the base plate 110, as shown in FIGS. 6(A) and 6(B), or may overlap a portion of the bottom surface of the base plate 110, as shown in FIG. 7(A). Alternatively, as shown in FIG. 7(B), each lower stopper 130 may penetrate the base plate 110 in the z-direction. In this case, the lower stopper 130 may be a bolt that is fixed to the base plate 110 in combination with a nut. Although not shown, the piping support device 100 may include three or more lower stoppers 130. In this case, the lower stoppers 130 are preferably arranged radially from the center of the through hole 110a or the central axis of the spring 108 extending in the z-direction.

[0033] As shown in the schematic side views of FIGS. 8(A) and 8(B), the pipe support device 100 may further include a pair of upper stoppers 132 instead of the lower stopper 130. Each upper stopper 132 is fixed to the spring seat 106 by welding or bolting. Each upper stopper 132 extends from the spring seat 106 in the z direction, i.e., toward the base plate 110. The pair of upper stoppers 132 are arranged so as to sandwich the spring 108 when observed from the z direction. The width w' (length in the x or y direction) of each upper stopper 132 may be selected, for example, from a range of 5% to 30% or 10% to 20% of the outer diameter D0 of the spring 108 (see FIG. 8(A)). Furthermore, the height of each upper stopper 132, more specifically, the length l' in the z direction of the portion of each upper stopper 132 below the lower surface of the spring seat 106, may be selected from the range of 20% to 50% or 25% to 40% of the length L of the spring 108. Therefore, each upper stopper 132 is spaced apart from the base plate 110.

[0034] 8(A) and 8(B), each upper stopper 132 may be fixed to a side surface of the base plate 110, or, similar to the lower stopper 130 (not shown), may overlap a portion of the upper surface of the spring seat 106 or may pass through the spring seat 106. Although not shown, the piping support device 100 may include three or more upper stoppers 132 arranged radially from the central axis of the spring 108.

[0035] Alternatively, as shown in the schematic side views of FIGS. 9(A) and 9(B), the piping support device 100 may include both a lower stopper 130 and an upper stopper 132.

[0036] Even if the spring 108 moves in the xy plane due to expansion and contraction, the lower stopper 130 and / or the upper stopper 132 come into contact with the spring 108, thereby effectively preventing the spring 108 from falling off. Buckling of the spring 108 can also be prevented at the same time. Therefore, when the lower stopper 130 and / or the upper stopper 132 are provided, it is not necessary to provide the lower spring guide 112 and / or the upper spring guide 114 having the structure described in the first embodiment. Even when the lower spring guide 112 and / or the upper spring guide 114 are provided, they do not necessarily need to overlap with the spring 108 in the y direction to prevent the spring 108 from falling off or buckling. 10(A) and 10(B), the pair of first guides 112-1 and 112-2 constituting the lower spring guide 112 and the pair of second guides 114-1 and 114-2 constituting the upper spring guide 114 may have shapes that overlap with the spring 108 in the x direction but do not overlap with the spring 108 in the y direction. For example, the pair of first guides 112-1 and 112-2 and the pair of second guides 114-1 and 114-2 may have ring shapes that are centered on the openings 110b and 106b, respectively, and surround the connecting rod 118.

[0037] In the above-described modified example, the spring 108 can be effectively prevented from falling off without using a cover or the like to cover the side surface of the spring 108. Furthermore, the spring 108 and the turnbuckle 116 can be almost entirely observed from the outside. Therefore, the piping support device 100 according to this modified example can also achieve the same effects as the piping support device 100 having the structure described in the first embodiment.

[0038] <Third embodiment> In this embodiment, a pipe support device 140 having a structure different from that of the pipe support device 100 described in the first and second embodiments and its modified examples will be described. Descriptions of configurations that are the same as or similar to those described in the first and second embodiments may be omitted.

[0039] 11 , the pipe support device 140 may have three or four or more connecting rods 118. In this case, the connecting rods 118 are arranged so that their central axes extend in the z direction and are arranged radially from the central axis of the spring 108. The hanger plate 104, the spring seat 106, and the base plate 110 each also have multiple branches extending radially from the central axis of the spring 108 in the xy plane, and each connecting rod 118 is arranged so as to penetrate through the branches of the hanger plate 104, the spring seat 106, and the base plate 110.

[0040] In this case, the multiple connecting rods 118 are preferably arranged so that the springs 108 cannot pass between adjacent connecting rods 118. That is, as schematically shown in FIG. 12, the multiple connecting rods 118 are preferably arranged between the base plate 110 and the spring seat 106 so that the distance D1 in the xy plane between adjacent connecting rods 118 is smaller than the outer diameter D0 of the springs 108. By adopting such an arrangement, it is possible to effectively prevent the springs 108 from falling off or buckling. Therefore, in the piping support device 140, the lower spring guide 112, upper spring guide 114, lower stopper 130, and upper stopper 132 described in the first and second embodiments are not necessarily required, and some or all of these may be omitted.

[0041] In the pipe support device 140 according to this embodiment, the spring 108 can be effectively prevented from falling off or buckling without using a cover or the like to cover the side surface of the spring 108. Furthermore, the spring 108 and the turnbuckle 116 can be almost entirely observed from the outside. Therefore, the pipe support device 140 can also achieve the same effects as the pipe support device 100 having the structure described in the first embodiment. Furthermore, by providing multiple connecting rods 118, it is possible to significantly reduce the x and y components of the vibration vector of the turnbuckle 116, thereby effectively preventing vibration of the pipe in the xy plane.

[0042] <Fourth embodiment> In this embodiment, a description will be given of the piping support device 100 described in each of the first to third embodiments, modifications thereof, and a piping support device 142 having a structure different from the piping support device 140. Descriptions of configurations that are the same as or similar to those described in the first to third embodiments may be omitted. As shown in the schematic side view of Figure 13, one of the differences between the piping support device 142 and the piping support device 100, 140, etc. is that the piping support device 142 includes at least one of a lower guide ring 144 and an upper guide ring 146 as a mechanism for preventing the spring 108 from falling off or buckling.

[0043] The lower guide ring 144 is positioned on the base plate 110 and is provided so as to be in contact with the base plate 110. The lower guide ring 144 may be integrated with the base plate 110, or may be an independent part fixed to the base plate 110 by welding or bolting. As can be seen from FIGS. 13 and 14(A), the lower guide ring 144 is surrounded by the spring 108. That is, the outer diameter D2 of the lower guide ring 144 in the xy plane is smaller than the inner diameter Di of the spring 108. The height of the lower guide ring 144, i.e., the height from the upper surface of the base plate 110, may be selected from the range of 0.5 to 2 times the coil diameter d of the spring 108. Therefore, the lower guide ring 144 is spaced apart from the spring seat 106. The lower guide ring 144 may be in contact with the spring 108 or may be spaced apart from the spring 108. Preferably, the lower guide ring 144 is disposed so that its center is located on a straight line connecting the centers of the pair of openings 110b of the base plate 110 and / or so that it overlaps with the center of the through-hole 110a of the base plate 110. By adopting such a configuration and arrangement, even if the spring 108 moves due to expansion and contraction, the spring 108 and the lower guide ring 144 interfere with each other, so that it is possible to effectively prevent the spring 108 from falling off due to the movement of the spring 108.

[0044] The upper guide ring 146 can have a similar configuration and arrangement. Specifically, as shown in FIGS. 13 and 14(B), the upper guide ring 146 is provided below the spring seat 106 so as to contact the spring seat 106. The upper guide ring 146 may be integrated with the spring seat 106, or may be an independent part fixed to the spring seat 106 by welding or bolting. As shown in FIGS. 13 and 14(B), the upper guide ring 146 is surrounded by the spring 108. That is, the outer diameter D3 of the upper guide ring 146 in the xy plane is smaller than the inner diameter Di of the spring 108. The height of the upper guide ring 146, i.e., the length from the bottom surface of the spring seat 106, may be selected from the range of 0.5 to 2 times the coil diameter d of the spring 108. Therefore, the upper guide ring 146 is spaced apart from the base plate 110. The upper guide ring 146 may be in contact with the spring 108 or may be spaced apart from the spring 108. Preferably, the upper guide ring 146 is disposed so that its center is located on the line connecting the centers of the pair of openings 106b of the spring seat 106. By adopting such a configuration and arrangement, even if the spring 108 moves due to expansion and contraction, the spring 108 and the upper guide ring 146 interfere with each other, thereby effectively preventing the spring 108 from falling off due to the movement of the spring 108. Furthermore, by providing both the lower guide ring 144 and the upper guide ring 146, buckling of the spring seat 106 can also be effectively prevented.

[0045] One or more of the lower spring guide 112, upper spring guide 114, lower stopper 130, and upper stopper 132 described in the first and second embodiments may be provided on the pipe support device 142.

[0046] In the pipe support device 142 according to this embodiment, the spring 108 can be effectively prevented from falling off or buckling without using a cover or the like to cover the side surface of the spring 108. Furthermore, the spring 108 and the turnbuckle 116 can be almost entirely observed from the outside. Therefore, the pipe support device 142 can also achieve the same effects as the pipe support devices 100 and 140 having the structures described in the first and second embodiments, or their modified examples.

[0047] The above-described embodiments of the present invention may be combined as appropriate as long as they are not mutually inconsistent. Furthermore, even if a person skilled in the art adds or deletes components or modifies the design based on each embodiment, the addition, deletion, or modification of components is included in the scope of the present invention as long as the gist of the present invention is maintained.

[0048] Furthermore, even if there are other effects and advantages different from those brought about by the above-mentioned embodiments, those that are clear from the description in this specification or that can be easily predicted by a person skilled in the art are naturally understood to be brought about by the present invention. [Explanation of symbols]

[0049] 100: Pipe support device, 102: Hanging ring, 104: Hanger plate, 106: Spring seat, 106b: Opening, 108: Spring, 110: Base plate, 110a: Through hole, 110b: Opening, 112: Lower spring guide, 112-1: First guide, 112-2: First guide, 112a: Curved surface, 112b: Opening, 112c: Bridge, 114: Upper spring guide, 114-1: Second guide, 114-2: Second guide, 114a: curved surface, 114b: opening, 114c: bridge, 116: turnbuckle, 116a: opening, 118: connecting rod, 120: nut, 122: nut, 124: nut, 126: nut, 128: bolt, 130: lower stopper, 132: upper stopper, 140: pipe support device, 142: pipe support device, 144: lower guide ring, 146: upper guide ring, 150: pipe fixing device

Claims

[Claim 1] Hanger plate, a base plate located below the hanger plate and having a through hole; a spring seat sandwiched between the hanger plate and the base plate and configured to reversibly slide between the hanger plate and the base plate; a pair of connecting rods that connect the hanger plate and the base plate, maintain the distance between the hanger plate and the base plate, and pass through the spring seat; a spring between the base plate and the spring seat; a turnbuckle connected to the spring seat and surrounded by the spring and the through hole; and At least one of a lower spring guide and an upper spring guide; the lower spring guide is located on the base plate and includes a pair of first guides in contact with the base plate; the pair of first guides each have a first opening through which the connecting rod passes, and are opposed to each other so as to sandwich the spring in a direction in which a first straight line connecting the first openings extends; the upper spring guide is located below the spring seat and includes a pair of second guides in contact with the spring seat; A piping support device in which the pair of second guides each have a second opening through which the connecting rod passes, and are opposed to each other so as to sandwich the spring in the direction in which a second straight line connecting the second openings extends.

Images