Suspension structure and air conditioning system

Abstract

This invention provides a suspension structure that allows the suspension position of a pipe member to be adjusted from the space below the pipe member. [Solution] The suspension structure 10 comprises a flexible breeze 11 having a ventilation passage 21 and a suspension device 12 that suspends and supports the flexible breeze 11. The flexible breeze 11 has a mounting hole, and the suspension device 12 comprises a shaft 33, a first male threaded portion provided on the outer surface of the shaft 33, a device body 28 that can move vertically along the shaft 33, a retaining portion provided on the device body 28, a second male threaded portion provided on the device body 28, a fixing nut arranged in the ventilation passage 21 and attached to the second male threaded portion, and a position adjustment nut arranged in the ventilation passage 21 and attached to the first male threaded portion, and that can move vertically. A connecting pipe 20 is attached to the outer surface of the flexible breeze 11, and the suspension device 12 is arranged within the area where the connecting pipe 20 is located, thereby forming a suspension structure 10.

Description

Technical Field

[0001] The present disclosure relates to a suspension structure and an air conditioning system for suspending and supporting a pipe member from a fixed structure.

Background Art

[0002] An example of a suspension structure for suspending and supporting a pipe member from a fixed structure is described in Patent Document 1. The flexible duct for an air conditioning system described in Patent Document 1 is a flexible duct for connecting a branch chamber laid on a ceiling surface or the like and an outlet to each zone in a room during construction of air conditioning equipment. Further, the flexible duct described in Patent Document 1 includes a tubular duct body (pipe member) having flexibility, and a core wire that also serves as a control wiring provided spirally on the inner peripheral surface of the duct body. Further, the duct body described in Patent Document 1 includes a cylindrical portion and a fin portion for suspension protruding from the upper end of the cylindrical portion. Furthermore, Patent Document 1 describes that the locking hole formed in the fin portion is used for suspension using a suspension tool on a ceiling or a beam of a building during piping work of the duct.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] According to the flexible duct for an air conditioning system described in Patent Document 1, the inventor of the present application has recognized that it is difficult for an operator in the space below the pipe member to adjust the suspension position of the pipe member in the vertical direction because a suspension tool is attached to the fin portion provided at the upper end of the cylindrical portion of the duct body.

[0005] The purpose of this disclosure is to provide a suspension structure and an air conditioning system that allows a worker located in the space below the pipe member to adjust the vertical suspension position of the pipe member. [Means for solving the problem]

[0006] This embodiment includes a pipe member having a ventilation passage, and a suspension device that suspends and supports the pipe member from a first fixed structure with the center line of the pipe member horizontal, wherein the pipe member has a mounting hole provided at the upper end of the pipe member in the vertical direction, penetrating the pipe member radially, and connecting the outside of the pipe member to the ventilation passage, the suspension device is attached to the first fixed structure and has a shaft that protrudes vertically downward from the first fixed structure, a first male threaded portion provided on the outer circumferential surface of the shaft, and a device body that is arranged across the ventilation passage, the mounting hole, and the outside of the pipe member and has a shaft hole in which a part of the shaft is positioned, and is movable vertically along the shaft, and the pipe member of the device body The present invention discloses a suspension structure comprising: a pressing portion positioned outside the pipe member and pressed against the outer surface of the pipe member; a second male threaded portion provided in the main body of the device at a location positioned in the ventilation passage; a fixing nut positioned in the ventilation passage and attached to the second male threaded portion and pressed against the outer surface of the pipe member; and a position adjustment nut positioned in the ventilation passage and attached to the first male threaded portion, and in contact with the lower end of the main body of the device, movable vertically along the shaft; further provided is a connecting pipe attached to the outer surface of the pipe member at the lower end of the pipe member in the vertical direction and having an auxiliary ventilation passage connected to the ventilation passage; and in a plan view of the pipe member viewed from directly above in the vertical direction, the suspension device is positioned within the area where the connecting pipe is positioned. [Effects of the Invention]

[0007] The suspension structure disclosed in this embodiment allows a worker located in the space below the pipe member to adjust the vertical suspension position of the pipe member. [Brief explanation of the drawing]

[0008] [Figure 1] This is a side view showing the suspension structure. [Figure 2] This is a schematic diagram showing the configuration of an air conditioning system with a suspended structure. [Figure 3] This is a plan view showing the suspension structure. [Figure 4] This is a bottom view showing the suspension structure. [Figure 5] This is a left side view showing the suspension structure. [Figure 6] This is a front cross-sectional view showing the configuration of the suspension device of the suspension structure and a part of the chamber body. [Figure 7] This is a partial front cross-sectional view showing the chamber body suspended by a suspension device. [Figure 8] Figures 8(A), 8(B), and 8(C) are side views showing examples of installation methods for suspending the Flexible Breeze. [Modes for carrying out the invention]

[0009] (Specific example) In this embodiment, an air conditioning system having a suspension structure is described with reference to the drawings. As shown in Figure 1, the air conditioning system 60 has a suspension structure 10 and fixtures 72. The suspension structure 10 has a flexible breeze 11 as a tubular member and a suspension fixture 12. The flexible breeze 11 is provided in the upper space C1 between a deck plate 13 that maintains the strength of a fixed structure 76 and the ceiling 70 located below the fixed structure 76. The fixed structure 76 is, for example, a slab. The material of the deck plate 13 is, for example, a steel plate. The deck plate 13 supports the fixed structure 76 from below. Multiple anchors 45, for example, two anchors 45 are fixed to the fixed structure 76 through pilot holes 13B in the deck plate 13. The material of the anchors 45 is metal, and the anchors 45 have female threaded holes 45A. The flexible breeze 11 is suspended from the anchors 45 by the suspension fixture 12. The deck plate 13 and the ceiling 70 are arranged with vertical spacing between them.

[0010] Figure 2 is a schematic diagram of the air conditioning system 60. As shown in Figure 2, the air conditioning system 60 has flexible chambers 61 and 62, an air conditioner 14, and two flexible breezes 11. The air conditioner 14 has components such as a chiller, blower (fan), heat exchanger (coil), humidifier, and air filter built into a casing. The air conditioner 14 has the function of adjusting the temperature and humidity of the air sent into the room, and the function of purifying the air.

[0011] The air conditioner 14 has an inlet 15 and an outlet 17. The inlet 15 is a path for introducing air into the air conditioner 14. A flexible chamber 61 is provided between the inlet 15 of the air conditioner 14 and the external space A1 of the building. The flexible chamber 61 is a flexible pipe member and has an inlet 61A and an outlet 61B. The inlet 61A is connected to the external space A1 by a vent pipe 63. The outlet 61B is connected to the inlet 15 of the air conditioner 14. The flexible chamber 62 is a flexible pipe member and has an inlet 62A and outlets 62B and 62C.

[0012] Of the two flexible breezes 11, the first flexible breeze 11 is connected to the outlet 62B of the flexible chamber 62, and the second flexible breeze 11 is connected to the outlet 62C of the flexible chamber 62. Since the shape, structure, and material of the two flexible breezes 11 are the same, the first flexible breeze 11 will be described primarily. As shown in Figures 1, 3, 4, and 5, the flexible breeze 11 has a cylindrical body 19 and a connecting pipe 20 connected to the body 19.

[0013] The main body 19 is a flexible duct constructed in a cylindrical shape from a material that can be bent and expanded. The main body 19 has a resin-based film, such as a polyethylene resin-based film, covering the outer surface of a cylindrical glass wool material. The main body 19 also has a resin-based film, such as a polyethylene terephthalate resin-based film, covering the inner surface of a cylindrical glass wool material, and steel wires are provided in a spiral shape. The inner diameter of the main body 19 is set in the range of, for example, 300 mm to 350 mm, and the total length in the direction along the center line B1 is set in the range of, for example, 750 mm to 800 mm.

[0014] Inside the main body 19, a ventilation passage 21 is provided within a predetermined range along the center line B1. The main body 19 has an opening 22, which is connected to the ventilation passage 21. The opening 22 is connected to the outlet 62B of the flexible chamber 62 via a ventilation pipe 64. In addition, as shown in Figure 4, an opening 24 is provided that penetrates the main body 19 radially. The opening 24 is connected to the ventilation passage 21.

[0015] Also, as shown in FIGS. 1 and 5, the connecting pipe 20 is attached to the outer peripheral surface of the main body 19. The open end of the connecting pipe 20 is in contact with the periphery of the opening 24 of the main body 19. A ventilation passage 25 is provided inside the connecting pipe 20. The material of the connecting pipe 20 is, for example, metal, synthetic resin, etc. In this embodiment, in the bottom view of the flexible breeze 11 shown in FIG. 4, an example is shown where the outer peripheral shape of the connecting pipe 20 is substantially square, for example, rectangular or square.

[0016] As shown in FIG. 4, a flange portion 26 projecting outward from the connecting pipe 20 is provided. In a state where the flange portion 26 is in contact with the outer surface of the main body 19, the flange portion 26 and the main body 19 are fixed by a fixing element. The fixing element for fixing the flange portion 26 and the main body 19 includes a screw member, a rivet, etc. A seal, caulking material, etc. for maintaining airtightness are provided at the connection portion between the connecting pipe 20 and the main body 19.

[0017] Furthermore, a reinforcing member (not shown) can also be brought into contact with the inner surface of the main body 19. The reinforcing member is, for example, a metal plate configured in an annular shape. That is, the edge of the opening 24 in the main body 19 can also be sandwiched by the flange portion 26 and the reinforcing member. Then, the flange portion 26 and the reinforcing plate are fixed to the main body 19 by a fixing element.

[0018] Furthermore, as shown in FIGS. 1 and 6, mounting holes 27 penetrating the main body 19 in the radial direction are provided. The mounting holes 27 are provided at positions opposite to the location where the connecting pipe 20 is attached in the circumferential direction of the main body 19. The mounting holes 27 are provided at a plurality of locations, for example, two locations, at intervals along the direction of the center line B1. In FIG. 3 showing the flexible breeze 11 in a plan view, the mounting holes 27 are arranged within the region of the ventilation passage 25 of the connecting pipe 20.

[0019] The flexible breezes 11 are suspended by two sets of suspension devices 12 from the anchor 45. The suspension devices 12 are attached at predetermined positions in the circumferential direction of the main body 19. The two sets of suspension devices 12 are arranged at intervals in the direction along the center line B1. When the flexible breezes 11 are suspended by the two sets of suspension devices 12, the center line B1 of the main body 19 is kept substantially horizontal. The two sets of suspension devices 12 are provided to support the load of the flexible breezes 11.

[0020] Each of the two sets of suspension devices 12 has an instrument main body 28, two washers 29, 30, a fixing nut 31, an adjustment nut 32, and a shaft 33. The instrument main body 28 includes a cylindrical portion 34, a shaft hole 35, an external thread portion 36, and a pressing portion 37. The material of the instrument main body 28 is, for example, synthetic resin or metal. As shown in FIG. 6, the outer diameter φ1 of the cylindrical portion 34 is not more than the inner diameter φ2 of the mounting hole 27.

[0021] The shaft hole 35 is provided in the instrument main body 28 in the direction along the center line B2. The center line B2 is a virtual line passing through the center of the instrument main body 28. The shaft hole 35 is provided so as to penetrate the cylindrical portion 34. The shaft hole 35 has a straight portion 40 and a tapered portion 41. The straight portion 40 and the tapered portion 41 are arranged at different positions in the direction along the center line B2. The inner diameter of the straight portion 40 is constant in the direction along the center line B2. The inner diameter of the tapered portion 41 changes smoothly in the direction along the center line B2. The inner diameter of the tapered portion 41 is enlarged as it moves away from the straight portion 50 in the direction along the center line B2. When the shaft 33 is inserted into the shaft hole 35, the instrument main body 28 is movable in the direction along the center line B2 along the shaft 33. The external thread portion 36 is provided on the outer peripheral surface of the cylindrical portion 34 within the region where the tapered portion 41 is arranged in the direction along the center line B2.

[0022] The retaining portion 37 is provided on the outer circumferential surface of the cylindrical portion 34. It is provided in a direction along the center line B2, at a position corresponding to the boundary between the straight portion 40 and the tapered portion 41. The retaining portion 37 protrudes outward from the outer circumferential surface of the cylindrical portion 34 in the radial direction of the cylindrical portion 34. The retaining portion 37 is provided in an annular shape on the outer circumferential surface of the cylindrical portion 34. As shown in Figure 6, the outer diameter φ3 of the retaining portion 37 exceeds the inner diameter φ2 of the mounting hole 27.

[0023] The two washers 29 and 30 are both annular. The material of the two washers 29 and 30 is, for example, metal, and the outer diameter φ4 of both washers 29 and 30 exceeds the outer diameter φ1 of the cylindrical portion 34 and also exceeds the inner diameter φ2 of the mounting hole 27. Both washers 29 and 30 have an insertion hole 38, and the inner diameter φ5 of the insertion hole 38 is greater than or equal to the outer diameter φ1 of the cylindrical portion 34 and less than the outer diameter φ3 of the retaining portion 37. Note that washers 29 and 30 are not required.

[0024] The material of the shaft 33 is, for example, metal or synthetic resin. The shaft 33 is cylindrical in shape, and its outer diameter φ6 is less than the inner diameter φ7 of the straight section 40. The outer surface of the shaft 33 is provided with a male threaded section 39 along its entire length in the direction along the center line B2. In the direction along the center line B2, the first end of the shaft 33 is fixed to the female threaded hole 45A of the anchor 45. With the first end of the shaft 33 attached to the anchor 45, the center line B2 is positioned approximately vertically, that is, along the direction of gravity. The shaft 33 protrudes vertically downward from the lower surface of the deck plate 13.

[0025] The fixing nut 31 is made of synthetic resin or metal. The fixing nut 31 is configured to be attached to and detached from the male threaded portion 36. The fixing nut 31 has a female threaded hole 42 into which the shaft 33 is inserted. Also, as shown in Figure 6, the outer diameter φ8 of the fixing nut 31 exceeds the inner diameter φ5 of the washer 30. When the fixing nut 31 is attached to the male threaded portion 36, the fixing nut 31 and the retaining portion 37 can clamp a predetermined location in the circumferential direction of the main body 19.

[0026] The position adjustment nut 32 is provided to adjust the distance H1 from which the flexible breeze 11 is suspended, as shown in Figures 1 and 5. The distance H1 can be represented, for example, as the distance from the lower end 13A of the deck plate 13 to the upper end 19A of the main body 19 in the vertical direction. The position adjustment nut 32 is made of metal or synthetic resin. The position adjustment nut 32 has a configuration that allows it to be attached to and removed from the male threaded portion 39. The position adjustment nut 32 has a female threaded hole 43 into which the shaft 33 is inserted.

[0027] Furthermore, as shown in Figure 6, the outer diameter φ9 of the position adjustment nut 32 is less than the inner diameter φ10 of the female screw hole 42 and exceeds the maximum inner diameter of the tapered portion 41. With the main body 19 sandwiched between the retaining portion 37 and the fixing nut 31, the position adjustment nut 32 is attached to the male screw portion 39 from below the shaft 33. Once the position adjustment nut 32 is attached to the male screw portion 39, the position adjustment nut 32 comes into contact with the end of the cylindrical portion 34.

[0028] Before the flexible breeze 11 is suspended from the anchor 45 by the suspension device 12, the flexible breeze 11 and the device body 28 are connected as follows: The device body 28 and washer 29 are positioned outside the body 19, and the male threaded portion 36 is inserted into the insertion hole 38 of the washer 29. The male threaded portion 36 is also inserted into the mounting hole 27 of the body 19. Furthermore, the washer 30 and fixing nut 31 enter the ventilation passage 21.

[0029] Then, the male threaded portion 36 enters the insertion hole 38 of the washer 30, and the male threaded portion 36 enters the female threaded hole 42 of the fixing nut 31. The fixing nut 31 is rotated in the first direction around the center line B2, and the fixing nut 31 is tightened. As a result, the fixing nut 31 and the retaining portion 37 move closer together, the washer 29 is pressed against the outer surface of the main body 19, and the washer 30 is pressed against the inner surface of the main body 19. In other words, the main body 19 is sandwiched between the washer 29 and the washer 30, that is, the device body 28 is fixed to the flexible breeze 11.

[0030] (Example of installation method for suspending Flexible Breeze) As shown in Figure 1, an example of an installation method in which the flexible breeze 11 is placed in the upper space C1 above the ceiling 70 and suspended by a suspension device 12 will be explained. The ceiling 70 is assumed to be positioned approximately horizontally. The flexible breeze 11, to which the fixture body 28 is connected, is placed in the upper space C1. Here, as shown in Figure 8(A), the flexible breeze 11 is placed on the upper surface of the ceiling 70 with the fixture body 28 positioned above and the connecting pipe 20 positioned below.

[0031] The ceiling 70 is provided with a vertically penetrating opening 71. With the flexible breeze 11 placed on the upper surface of the ceiling 70, the connecting pipe 20 enters the opening 71, and the lower end of the connecting pipe 20 is exposed to the space below C2. The space below C2 is, for example, the interior space. As mentioned above, an anchor 45 is fixed to the fixed structure 76, and the shaft 33 is suspended downward from the anchor 45 by its own weight. The centerline B2 of the shaft 33 is approximately vertical.

[0032] Next, the worker supports the device 72 directly below the connecting pipe 20 in the lower space C2, as shown in Figure 8(A). The device 72 is a ventilated cylindrical member, and its material includes, for example, metal or synthetic resin. The device 72 has a cylindrical portion 73 and a flange portion 74. The cylindrical portion 73 has a ventilation passage 75 through which air passes. The flange portion 74 protrudes outward from the outer circumferential surface of the cylindrical portion 73. When the worker raises the device 72, the cylindrical portion 73 is inserted into the connecting pipe 20, as shown in Figure 8(B). Furthermore, when the flange portion 74 comes into contact with the lower end of the connecting pipe 20, the worker stops the device 72.

[0033] Next, the worker secures the device 72 and the connecting pipe 20 with a fixing element. Once the device 72 and the connecting pipe 20 are secured, the ventilation passage 75 is connected to the ventilation passage 21. After that, the worker in the lower space C2 grasps the position adjustment nut 32 with their hand and moves their hand through the ventilation passage 75 into the ventilation passage 21. The worker attaches the position adjustment nut 32 to the male threaded portion 39 and rotates the position adjustment nut 32 in the first direction. Alternatively, the worker may attach the position adjustment nut 32 to the jig without grasping it with their hand and then move the jig into the ventilation passage 21.

[0034] Then, the position adjustment nut 32 is raised, and as shown on the left in Figure 7, the position adjustment nut 32 comes into contact with the lower end 31A of the cylindrical portion 34. When the position adjustment nut 32 is rotated further in the first direction, the fixture body 28, which is resting on the position adjustment nut 32, is raised as shown on the right in Figure 7, and both the flexible breeze 11 and the fixture 72 rise, as shown in Figure 8(B). Then, as shown in Figure 8(C), the worker stops the position adjustment nut 32 when the flange portion 74 comes into contact with the lower surface of the ceiling 70.

[0035] In this way, the worker completes the task of positioning and fixing the flexible breeze 11 and the fixture 72 in the vertical direction. When the worker rotates the position adjustment nut 32 in the second direction opposite to the first direction, the position adjustment nut 32 is lowered along the center line B2. Therefore, both the flexible breeze 11 and the fixture 72 are lowered. Alternatively, the position adjustment nut 32 may be attached to the male threaded portion 39 before attaching the fixture 72 to the connecting pipe 20.

[0036] In this embodiment, we assume that the distance from the lower end 13A of the deck plate 13 shown in Figure 1 to the lower end 33A of the shaft 33 shown in Figure 7, i.e., the height H2, is constant. Then, the distance H1 when the flexible breeze 11 is suspended from the anchor 45 is determined according to the height H3 of the position adjustment nut 32 in the direction along the center line B2. The height H3 can be expressed as the distance from the lower end 33A of the shaft 33 to the lower end 32A of the position adjustment nut 32 in the direction along the center line B2. And, as the height H3 becomes relatively higher, the distance H1 becomes relatively shorter.

[0037] Furthermore, in Figure 1, the height H4 from the floor or other surface (not shown) in the lower space C2 to the lower end of the connecting pipe 20 is determined according to the height H3. As the height H3 increases relatively, the height H4 also increases relatively.

[0038] In the air conditioning system 60, air from the external space A1 is drawn into the inlet of the air conditioner 14 through the vent pipe 63 and the flexible chamber 61. The air discharged from the outlet 17 of the air conditioner 14 is sent to the flexible breeze 11 through the flexible chamber 62 and the vent pipe 64. The air sent to the flexible breeze 11 is discharged into the lower space C2 through the connecting pipe 20, specifically the fixture 72.

[0039] (Effects of this embodiment) In the suspension structure 10 of this embodiment, the connecting pipe 20 protrudes downward, and the fixture 72 is inserted into the connecting pipe 20. As a result, a worker in the space below C2 can insert their hand or a jig from the ventilation passage 75 to adjust the suspension position of the flexible breeze 11 in the vertical direction, in other words, its height. Therefore, the degree of freedom in the arrangement layout of the flexible breeze 11 in the vertical direction is increased. Specifically, in the air conditioning system 60, with the fixture 72 attached to the connecting pipe 20, it becomes easier to perform the installation work of raising the flexible breeze 11 so that the flange portion 74 of the fixture 72 comes into contact with the ceiling 70.

[0040] Furthermore, in Figure 3, which shows a plan view of the suspension structure 10, the suspension device 12 is positioned within the arrangement area of ​​the connecting pipe 20. Therefore, the worker can insert their hand or a jig into the ventilation passage 21 from directly below the flexible breeze 11 and rotate the position adjustment nut 32 in the first or second direction to adjust the height H3 of the position adjustment nut 32 in the vertical direction. Thus, the worker can adjust the suspension position of the flexible breeze 11 in the vertical direction without visually inspecting the space between the flexible breeze 11 and the deck plate 13. In other words, the work of adjusting the suspension position of the flexible breeze 11 in the vertical direction can be made easier.

[0041] Furthermore, when the position adjustment nut 32 is in contact with the lower end 34A of the cylindrical portion 34, the position adjustment nut 32 seals the space between the outer circumferential surface of the shaft 33 and the inner circumferential surface of the shaft hole 35. Therefore, it is possible to prevent air passing through the ventilation passage 21 from leaking out of the main body 19 through the space between the outer circumferential surface of the shaft 33 and the inner circumferential surface of the shaft hole 35. In other words, the position adjustment nut 32 serves both the function of adjusting the position of the flexible breeze 11 in the vertical direction and the function of a sealing device. Therefore, it is not necessary to provide a dedicated sealing device, and the increase in the number of parts can be suppressed.

[0042] Furthermore, the suspension device 12 is located at the upper end of the flexible breeze 11 and is attached to one point in the circumferential direction of the main body 19. Therefore, compared to suspension devices that involve wrapping a belt around the entire circumference of the chamber body, the worker can attach the suspension device 12 to the main body 19 without being obstructed by the connecting pipe 20.

[0043] (Other explanations) In this embodiment, the height from which the flexible breeze 11 is suspended from the anchor 45 can also be expressed as the distance from the lower end 13A of the deck plate 13 to the center line B1 in the vertical direction, or the distance from the lower end 13A of the deck plate 13 to the lower end of the flexible breeze 11 in the vertical direction. Alternatively, the height from which the flexible breeze 11 is suspended from the anchor 45 can also be expressed as the distance from the upper end of the floor located below the flexible breeze 11 in the vertical direction to the center line B1. Furthermore, the height from which the flexible breeze 11 is suspended from the anchor 45 can also be expressed as the distance from the upper end of the floor located below the flexible breeze 11 in the vertical direction to the lower end of the flexible breeze 11.

[0044] The suspension device 12 may be provided as a single unit for the flexible breeze 11, or as a multiple unit, for example, three or more sets. Furthermore, the flexible breeze 11 may be provided in the ventilation passage between the external space A1 and the flexible chamber 61. In this case, the connecting pipe 20 of the flexible breeze 11 is connected to the external space A1, and the opening 22 of the flexible breeze 11 is connected to the inlet 61A of the flexible chamber 61.

[0045] Furthermore, a flexible breeze 11 may be provided instead of the flexible chamber 61. In this case, the opening 22 of the flexible breeze 11 is connected to the external space A1, and the connecting pipe 20 of the flexible breeze 11 is connected to the inlet 15 of the air conditioner 14.

[0046] The metal material of the elements disclosed in this embodiment is, for example, aluminum, stainless steel, steel, etc. The synthetic resin material of the elements disclosed in this embodiment is specifically a rigid synthetic resin, for example, tetrafluoroethylene resin, polyethylene resin, polyvinyl chloride resin, etc. In this embodiment, the gas flowing through the ventilation channel may be an inert gas other than air. Examples of inert gases are oxygen gas, nitrogen gas, helium gas, argon gas, etc. The first fixed structure may be a beam, column, wall, roof, etc. of a building.

[0047] An example of the technical meaning of the technical matters disclosed in this embodiment is as follows: Air conditioning system 60 is an example of an air conditioning system. Suspension structure 10 is an example of a suspension structure. Flexible breeze 11 is an example of a pipe member. Ventilation passage 21 is an example of a ventilation passage for a pipe member. Centerline B1 is an example of the centerline of a pipe member. Fixing structure 76 and deck plate 13 are examples of first fixing structures. Ceiling 70 is an example of second fixing structure. Suspension device 12 is an example of a device body. Mounting hole 27 is an example of a mounting hole.

[0048] The shaft 33 is an example of a shaft. The male threaded portion 36 is an example of a first male threaded portion. The shaft hole 35 is an example of a shaft hole. The retaining portion 37 is an example of a retaining portion. The male threaded portion 36 is an example of a second male threaded portion. The fixing nut 31 is an example of a fixing nut. The position adjustment nut 32 is an example of a position adjustment nut. The ventilation passage 25 is an example of an auxiliary ventilation passage. The connecting pipe 20 is an example of a connecting pipe. The tapered portion 41 is an example of a tapered portion. The opening 71 is an example of an opening. The device 72 is an example of a ventilation member. The flange portion 74 is an example of a flange. [Industrial applicability]

[0049] The suspension structure for pipe members in this embodiment can be used as a suspension structure for suspending and supporting pipe members from a fixed structure. [Explanation of Symbols]

[0050] 10...Suspension structure, 11...Air conditioning chamber, 13...Deck plate, 20...Connecting pipe, 21...Ventilation passage, 25...Ventilation passage, 27...Mounting hole, 28...Suspension device, 31...Fixing nut, 32...Position adjustment nut, 33...Shaft, 35...Shaft hole, 36...Male threaded part, 37...Pressing part, 41...Tapered part, 70...Ceiling, 71...Opening, 72...Device, 74...Flange, 76...Fixing structure, B1...Centerline

Claims

1. A pipe member having a ventilation passage, A suspension device that suspends and supports the pipe member from the first fixed structure while the center line of the pipe member is horizontal, It has, The pipe member has a mounting hole provided at the upper end of the pipe member in the vertical direction, which penetrates the pipe member radially, and which connects the outside of the pipe member to the ventilation passage. The aforementioned hanging device is, A shaft attached to the first fixed structure and protruding vertically downward from the first fixed structure, A first male threaded portion is provided on the outer surface of the shaft, An apparatus body is provided which is arranged over the ventilation passage, the mounting hole, and the outside of the pipe member, and which has a shaft hole in which a part of the shaft is placed, and which is movable vertically along the shaft, Of the main body of the device, a pressing portion is positioned outside the pipe member and pressed against the outer surface of the pipe member, The main body of the device, including a second male screw portion provided in the location where it is positioned in the ventilation passage, A fixing nut is placed in the ventilation passage and attached to the second male threaded portion, and is pressed against the outer surface of the pipe member, A position adjustment nut is positioned in the ventilation passage, attached to the first male threaded portion, and in contact with the lower end of the device body, and is movable vertically along the shaft. Equipped with, A connecting pipe is further provided, which is attached to the outer surface of the pipe member at the lower end of the pipe member in the vertical direction and has an auxiliary ventilation passage connected to the ventilation passage. In a plan view of the pipe member viewed from directly above in the vertical direction, the suspension device is positioned within the arrangement area of ​​the connecting pipe, thus forming a suspension structure.

2. A suspension structure according to claim 1, The position adjustment nut has a suspension structure that covers the gap between the inner surface of the shaft hole and the first male threaded portion in the vertical direction.

3. A suspension structure according to claim 1, The aforementioned shaft hole has a tapered portion, The tapered section is a suspension structure in which the inner diameter is relatively larger the lower its position in the vertical direction.

4. An air conditioning system having a suspension structure as described in claim 1, The pipe member further has a connecting pipe that leads to the ventilation passage, A second fixing structure is provided below the pipe member in the vertical direction, A cylindrical ventilation member inserted into the connecting pipe from the space below the second fixed structure, Furthermore, The second fixing structure has an opening into which the connecting pipe is inserted, The ventilation member has a flange portion that contacts the lower surface of the second fixed structure, in an air conditioning system.

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