Suspension structure and air conditioning system

Abstract

To provide a hanging structure capable of adjusting the hanging position of a pipe member from a space below the pipe member. [Solution] A hanging structure 10 is formed, comprising a flexible breeze 11 having an air passage 21, and a hanging device 12 that suspends and supports the flexible breeze 11, the flexible breeze 11 having an attachment hole, the hanging device 12 comprising a shaft 33, a first male threaded portion provided on the outer peripheral surface of the shaft 33, an instrument body 28 movable in the vertical direction along the shaft 33, a pressing portion provided on the instrument body 28, a second male threaded portion provided on the instrument body 28, a fixing nut disposed in the air passage 21 and attached to the second male threaded portion, and a position adjustment nut disposed in the air passage 21 and attached to the first male threaded portion and movable in the vertical direction, a connecting pipe 20 is attached to the outer surface of the flexible breeze 11, and the hanging device 12 is disposed within the arrangement area of ​​the connecting pipe 20.

Description

[Technical field]

[0001] The present disclosure relates to a suspension structure for suspending and supporting tubular members from a fixed structure and an air conditioning system. [Background technology]

[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 to an outlet for each zone in a room when constructing an air conditioning facility. The flexible duct described in Patent Document 1 includes a flexible tubular duct body (pipe member) and a core wire that also serves as a control wiring and is spirally provided on the inner peripheral surface of the duct body. The duct body described in Patent Document 1 includes a cylindrical portion and a fin portion for suspension that protrudes from the upper end of the cylindrical portion. Patent Document 1 also describes that the locking hole formed in the fin portion is used to suspend the duct from the ceiling or beams of a building using a suspension tool during duct piping work. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2005-291613 A Summary of the Invention [Problem to be solved by the invention]

[0004] The present inventors recognized a problem that with the flexible duct for air conditioning systems described in Patent Document 1, because the hanging device is attached to a fin portion provided at the upper end of the cylindrical portion of the duct body, it is difficult for a worker in the space below the pipe member to adjust the hanging position of the pipe member in the vertical direction.

[0005] An object of the present disclosure is to provide a hanging structure and an air conditioning system that allows an operator in the space below a pipe member to adjust the hanging position of the pipe member in the vertical direction. [Means for solving the problem]

[0006] This embodiment includes a pipe member having an air passage, and a hanging device that suspends and supports the pipe member from a first fixed structure with a center line of the pipe member horizontal, the pipe member having an attachment hole that is provided at an upper end of the pipe member in a vertical direction, penetrates the pipe member in a radial direction, and connects the outside of the pipe member to the air passage, and the hanging device includes a shaft that is attached to the first fixed structure and protrudes downward in the vertical direction from the first fixed structure, a first male screw portion provided on an outer circumferential surface of the shaft, and a first male screw portion that connects the air passage and the Tori the second male threaded portion provided on the instrument body at a portion of the instrument body that is disposed in the air passage; a fixing nut that is disposed in the air passage, attached to the second male threaded portion and pressed against the outer surface of the pipe member; and a position adjustment nut that is disposed in the air passage, attached to the first male threaded portion, and movable vertically along the shaft while in contact with a lower end of the instrument body; and a connecting pipe that 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 air passage connected to the air passage, and in a plan view of the pipe member viewed from directly above in the vertical direction, the hanging instrument is disposed within the arrangement area of ​​the connecting pipe. Effect of the Invention

[0007] The hanging structure disclosed in this embodiment allows an operator in the space below the pipe member to adjust the hanging position of the pipe member in the vertical direction. [Brief description of the drawings]

[0008] [Figure 1] FIG. [Diagram 2] FIG. 1 is a schematic diagram showing the configuration of an air conditioning system having a suspended structure. [Diagram 3] FIG. [Figure 4] FIG. [Diagram 5] FIG. [Figure 6] 4 is a front cross-sectional view showing the configuration of a hanging fixture of the hanging structure and a part of the chamber body. FIG. [Figure 7] FIG. 11 is a partial front cross-sectional view showing a state in which the chamber body is suspended by a suspension device. [Figure 8] 8(A), 8(B) and 8(C) are side views showing an example of a construction method for suspending a Flexible Breeze. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] (Specific examples) In this embodiment, an air conditioning system having a suspension structure is described with reference to the drawings. As shown in FIG. 1, the air conditioning system 60 has a suspension structure 10 and a fixture 72. The suspension structure 10 has a flexible breeze 11 and a suspension fixture 12 as pipe members. The flexible breeze 11 is provided in an upper space C1 between a deck plate 13 that maintains the strength of a fixed structure 76 and a 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 the lower surface. A plurality of anchors 45, for example, two anchors 45, are fixed to the fixed structure 76 through pilot holes 13B of the deck plate 13. The material of the anchor 45 is metal, and the anchor 45 has a female screw hole 45A. The flexible breeze 11 is suspended from the anchor 45 by a suspension fixture 12. The deck plate 13 and the ceiling 70 are spaced apart in the vertical direction.

[0010] Fig. 2 is a schematic diagram showing an air conditioning system 60. As shown in Fig. 2, the air conditioning system 60 has flexible chambers 61, 62, an air conditioner (air conditioner) 14, and two flexible breezes 11. The air conditioner 14 has devices such as a refrigerator, a blower (fan), a heat exchanger (coil), a humidifier, and an air filter built into a casing, for example. The air conditioner 14 has a function of adjusting the temperature and humidity of air sent into a room, and a 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 tubular member, and has an inlet 61A and an outlet 61B. The inlet 61A is connected to the external space A1 by a ventilation pipe 63. The outlet 61B is connected to the inlet 15 of the air conditioner 14. The flexible chamber 62 is a flexible tubular member, and has an inlet 62A and outlets 62B and 62C.

[0012] Of the two flexible breeze 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 two flexible breeze 11 have the same shape, structure, and material, the first flexible breeze 11 will be mainly described. As shown in Figures 1, 3, 4, and 5, the flexible breeze 11 has a cylindrical main body 19 and a connecting pipe 20 connected to the main body 19.

[0013] The main body 19 is a flexible duct made of a bendable and stretchable material and formed into a cylindrical shape. The main body 19 is made of a cylindrical glass wool material, the outer peripheral surface of which is covered with a resin film, for example, a polyethylene resin film. The main body 19 is made of a cylindrical glass wool material, the inner peripheral surface of which is covered with a resin film, for example, a polyethylene terephthalate resin film, and a steel wire is provided in a spiral shape. The inner diameter of the main body 19 is set in the range of 300 mm to 350 mm, for example, and the total length in the direction along the center line B1 is set in the range of 750 mm to 800 mm, for example.

[0014] An air passage 21 is provided within a predetermined range in the direction along the center line B1 inside the main body 19. The main body 19 has an opening 22, which is connected to the air passage 21. The opening 22 is connected to the outlet 62B of the flexible chamber 62 via a ventilation pipe 64. Also, as shown in FIG. 4, an opening 24 is provided which penetrates the main body 19 in the radial direction. The opening 24 is connected to the air passage 21.

[0015] 1 and 5, the connecting pipe 20 is attached to the outer circumferential 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. An air passage 25 is provided inside the connecting pipe 20. The connecting pipe 20 is made of a material such as metal or synthetic resin. In this embodiment, an example is shown in which the outer circumferential shape of the connecting pipe 20 is substantially quadrangular, for example, rectangular or square, in the bottom view of the flexible breeze 11 shown in FIG. 4.

[0016] As shown in Fig. 4, a flange 26 is provided that projects outward from the connecting pipe 20. With the flange 26 in contact with the outer surface of the main body 19, the flange 26 and the main body 19 are fixed together by a fixing element. The fixing element for fixing the flange 26 to the main body 19 includes a screw member, a rivet, etc. The connection portion between the connecting pipe 20 and the main body 19 is provided with a seal, caulking material, etc. to maintain airtightness.

[0017] Furthermore, a reinforcing member (not shown) can 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 be sandwiched between the flange 26 and the reinforcing member. Then, the flange 26 and the reinforcing plate are fixed to the main body 19 by a fixing element.

[0018] 1 and 6, mounting holes 27 are provided penetrating the main body 19 in the radial direction. The mounting holes 27 are provided at a location 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, spaced apart in the direction along the center line B1. In FIG. 3, which shows the flexible breeze 11 in a plan view, the mounting holes 27 are located within the area of ​​the air passage 25 of the connecting pipe 20.

[0019] The Flexible Breeze 11 is suspended from the anchors 45 by two sets of suspension devices 12. The suspension devices 12 are attached to predetermined locations in the circumferential direction of the main body 19. The two sets of suspension devices 12 are arranged at an interval in a direction along the center line B1. When the Flexible Breeze 11 is suspended by the two sets of suspension devices 12, the center line B1 of the main body 19 is kept approximately horizontal. The two sets of suspension devices 12 are provided to support the load of the Flexible Breeze 11.

[0020] Each of the two sets of hanging devices 12 has a device body 28, two washers 29, 30, a fixing nut 31, a position adjustment nut 32, and a shaft 33. The device body 28 has a tubular portion 34, a shaft hole 35, a male threaded portion 36, and a retaining portion 37. The device body 28 is made of a material such as synthetic resin or metal. As shown in Fig. 6, the outer diameter φ1 of the tubular portion 34 is equal to or smaller than the inner diameter φ2 of the mounting hole 27.

[0021] The shaft hole 35 is provided in the instrument body 28 in a direction along the center line B2. The center line B2 is a virtual line passing through the center of the instrument body 28. The shaft hole 35 is provided penetrating the tube 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 along the center line B2, and 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 increases with distance 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 body 28 can move in the direction along the center line B2 along the shaft 33. The male thread portion 36 is provided on the outer circumferential surface of the tube portion 34 in the region where the tapered portion 41 is arranged in the direction along the center line B2.

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

[0023] The two washers 29, 30 are both annular. The material of the two washers 29, 30 is, for example, metal, and the outer diameter φ4 of the two washers 29, 30 exceeds the outer diameter φ1 of the cylindrical portion 34 and exceeds the inner diameter φ2 of the mounting hole 27. The two washers 29, 30 each have an insertion hole 38, and the inner diameter φ5 of the insertion hole 38 is equal to or larger than the outer diameter φ1 of the cylindrical portion 34 and smaller than the outer diameter φ3 of the pressing portion 37. The washers 29, 30 do not necessarily have to be provided.

[0024] The material of the shaft 33 is, for example, metal or synthetic resin. The shaft 33 is cylindrical, and the outer diameter φ6 of the shaft 33 is less than the inner diameter φ7 of the straight portion 40. A male thread portion 39 is provided on the outer circumferential surface of the shaft 33 over the entire area in the direction along the center line B2. A first end of the shaft 33 is fixed to the female thread hole 45A of the anchor 45 in the direction along the center line B2. With the first end of the shaft 33 attached to the anchor 45, the center line B2 is disposed in a substantially vertical direction, that is, along the acting direction of gravity. The shaft 33 protrudes downward in the vertical direction 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 attachable to and detachable from the male thread portion 36. The fixing nut 31 has a female threaded hole 42 into which the shaft 33 is inserted. Also, as shown in FIG. 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 thread portion 36, a predetermined location in the circumferential direction of the main body 19 can be clamped between the fixing nut 31 and the pressing portion 37.

[0026] 1 and 5, the position adjustment nut 32 is provided to adjust the distance H1 at which the flexible breeze 11 is suspended. The distance H1 can be expressed, 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 is configured to be attached to and detached from the male thread portion 39. The position adjustment nut 32 has a female threaded hole 43 into which the shaft 33 is inserted.

[0027] 6, the outer diameter φ9 of the position adjustment nut 32 is less than the inner diameter φ10 of the female threaded hole 42 and exceeds the maximum inner diameter of the tapered portion 41. With the main body 19 sandwiched between the pressing portion 37 and the fixing nut 31, the position adjustment nut 32 is attached to the male threaded portion 39 from below the shaft 33. When the position adjustment nut 32 is attached to the male threaded 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 the washer 29 are positioned outside the main 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 main body 19. Furthermore, the washer 30 and the fixing nut 31 are advanced into the air passage 21.

[0029] Then, the male threaded portion 36 is inserted into the insertion hole 38 of the washer 30, and the male threaded portion 36 is inserted into the female threaded hole 42 of the fixing nut 31. The fixing nut 31 is rotated in the first direction about the center line B2, and the fixing nut 31 is tightened. As a result, the fixing nut 31 and the pressing portion 37 approach each other, and 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 main body 28 is fixed to the Flexible Breeze 11.

[0030] (Example of how to hang Flexible Breeze) An example of a construction method will be described in which the Flexible Breeze 11 is placed in the upper space C1 above the ceiling 70 as shown in Fig. 1, and the Flexible Breeze 11 is suspended by the suspension fixture 12. The ceiling 70 is assumed to be disposed substantially horizontally. The Flexible Breeze 11 connected to the fixture body 28 is placed in the upper space C1. Here, the Flexible Breeze 11 is placed on the upper surface of the ceiling 70 with the fixture body 28 positioned on top and the connection pipe 20 positioned on the bottom, as shown in Fig. 8(A).

[0031] The ceiling 70 is provided with an opening 71 that penetrates in the vertical direction, and 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 lower space C2. The lower space C2 is, for example, an indoor space. As described above, the 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 center line B2 of the shaft 33 is approximately vertical.

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

[0033] Next, the worker fixes the device 72 and the connecting pipe 20 with a fixing element. When the device 72 and the connecting pipe 20 are fixed, the air passage 75 is connected to the air passage 21. After that, the worker in the lower space C2 grasps the position adjustment nut 32 with his / her hand and advances the hand into the air passage 21 through the air passage 75. The worker attaches the position adjustment nut 32 to the male thread portion 39 and rotates the position adjustment nut 32 in the first direction. Note that the worker may attach the position adjustment nut 32 to a jig without grasping it with his / her hand, and then advance the jig into the air passage 21.

[0034] Then, the position adjustment nut 32 is raised, and as shown on the left side in Fig. 7, the position adjustment nut 32 comes into contact with the lower end 31A of the tubular portion 34. When the position adjustment nut 32 is further rotated in the first direction, the device main body 28 placed on the position adjustment nut 32 is raised, as shown on the right side in Fig. 7, and the flexible breeze 11 and the device 72 are raised together, as shown in Fig. 8(B). Then, the worker stops the position adjustment nut 32 when the flange portion 74 comes into contact with the lower surface of the ceiling 70, as shown in Fig. 8(C).

[0035] In this way, the worker completes the work of positioning and fixing the flexible breeze 11 and the instrument 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 instrument 72 are lowered. The position adjustment nut 32 may be attached to the male thread portion 39 before attaching the instrument 72 to the connecting pipe 20.

[0036] In this embodiment, it is assumed that the distance from the lower end 13A of the deck plate 13 shown in Fig. 1 to the lower end 33A of the shaft 33 shown in Fig. 7, that is, 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. Then, as the height H3 becomes relatively higher, the distance H1 becomes relatively shorter.

[0037] 1, a height H4 from a floor or the like (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 becomes relatively higher, the height H4 becomes relatively higher.

[0038] In the air conditioning system 60, air from the outside space A1 is drawn into the inlet of the air conditioner 14 through the ventilation pipe 63 and the flexible chamber 61. 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 ventilation 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 connection pipe 20 is protruded downward, and the fixture 72 is inserted into the connection pipe 20. Therefore, a worker in the lower space C2 can insert his hand or a tool through the air passage 75 to adjust the suspension position of the flexible breeze 11 in the vertical direction, in other words, the height. This increases the freedom of layout of the flexible breeze 11 in the vertical direction. Specifically, in the air conditioning system 60, with the fixture 72 attached to the connection pipe 20, it becomes easier to perform the construction work of raising the flexible breeze 11 and bringing the flange 74 of the fixture 72 into contact with the ceiling 70.

[0040] 3, which shows the suspension structure 10 in a plan view, the suspension fixture 12 is disposed within the arrangement area of ​​the connection pipe 20. Therefore, the worker can insert his / her hand or a tool into the air passage 21 from directly below the flexible breeze 11 and rotate the position adjustment nut 32 in the first direction or the second direction to adjust the height H3 of the position adjustment nut 32 in the vertical direction. Therefore, the worker can adjust the suspension position of the flexible breeze 11 in the vertical direction without visually checking the space between the flexible breeze 11 and the deck plate 13. In other words, the task of adjusting the suspension position of the flexible breeze 11 in the vertical direction can be facilitated.

[0041] Furthermore, when the position adjustment nut 32 is in contact with the lower end 34A of the tubular portion 34, the position adjustment nut 32 closes the gap between the outer circumferential surface of the shaft 33 and the inner circumferential surface of the shaft hole 35. This prevents air passing through the air passage 21 from leaking out of the main body 19 through the gap 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 has both the function of adjusting the position of the flexible breeze 11 in the vertical direction and the function of a sealing device. This eliminates the need for a dedicated sealing device, and suppresses an increase in the number of parts.

[0042] Furthermore, the hanging device 12 is attached to the upper end of the flexible breeze 11 and to one location in the circumferential direction of the main body 19. Therefore, compared to a hanging device that wraps a belt around the entire circumference of the chamber main body, the worker can attach the hanging device 12 to the main body 19 without being hindered by the connecting pipe 20.

[0043] (Other explanations) In this embodiment, the height at which the flexible breeze 11 is suspended from the anchor 45 can 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. The height at 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 to the center line B1 in the vertical direction. The height at 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 to the lower end of the flexible breeze 11 in the vertical direction.

[0044] A single hanging device 12 may be provided for the flexible breeze 11, or multiple hanging devices, for example, three or more sets, may be provided. Furthermore, the flexible breeze 11 may be provided in the air passage between the external space A1 and the flexible chamber 61. In this case, the connection 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, which is the material of the elements disclosed in this embodiment, is, for example, aluminum, stainless steel, steel, etc. The synthetic resin, which is the material of the elements disclosed in this embodiment, is specifically, a hard synthetic resin, for example, polytetrafluoroethylene resin, polyethylene resin, polyvinyl chloride resin, etc. In this embodiment, the gas flowing through the air passage may be an inert gas other than air. The inert gas is, for example, oxygen gas, nitrogen gas, helium gas, argon gas, etc. Furthermore, 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. The air conditioning system 60 is an example of an air conditioning system. The hanging structure 10 is an example of a hanging structure. The flexible breeze 11 is an example of a pipe member. The air passage 21 is an example of an air passage of a pipe member. The center line B1 is an example of a center line of a pipe member. The fixed structure 76 and the deck plate 13 are an example of a first fixed structure. The ceiling 70 is an example of a second fixed structure. The hanging fixture 12 is an example of a fixture body. The 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 air passage 25 is an example of an auxiliary air 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 suspending structure for a pipe member of this embodiment can be used as a suspending structure for suspending and supporting a pipe member 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 portion, 37...Pressing portion, 41...Tapered portion, 70...Ceiling, 71...Opening, 72...Device, 74...Flange, 76...Fixed structure, B1...Center line

Claims

1. A pipe member having an air passage; a hanging device that suspends and supports the pipe member from a first fixed structure with a center line of the pipe member horizontal; having the pipe member has an attachment hole that is provided at an upper end of the pipe member in a vertical direction, that penetrates the pipe member in a radial direction, and that connects an outside of the pipe member to the air passage; The hanging device is a shaft attached to the first fixed structure and protruding downward in a vertical direction from the first fixed structure; A first male thread portion provided on an outer circumferential surface of the shaft; an instrument body that is disposed across the air passage, the mounting hole, and the outside of the pipe member, has a shaft hole in which a part of the shaft is disposed, and is movable in a vertical direction along the shaft; a pressing portion of the instrument body that is disposed outside the tubular member and pressed against an outer surface of the tubular member; A second male screw portion is provided in a portion of the instrument body that is disposed in the air passage; a fixing nut disposed in the air passage, attached to the second male threaded portion, and pressed against an outer surface of the pipe member; a position adjustment nut that is disposed in the air passage, attached to the first male thread portion, and is movable vertically along the shaft in a state of being in contact with a lower end of the instrument body; Equipped with a connecting pipe is further provided, the connecting pipe being 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 air passage leading to the air passage; A hanging structure, wherein, in a plan view of the pipe member viewed from directly above in the vertical direction, the hanging device is disposed within an arrangement area of ​​the connecting pipe.

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

3. 2. The suspension structure of claim 1, The shaft hole has a tapered portion, A hanging structure, in which the tapered portion has an inner diameter that is relatively larger as the position of the tapered portion in the vertical direction becomes relatively lower.

4. An air conditioning system having the suspension structure of claim 1, The pipe member further includes a connecting pipe connected to the air passage, a second fixed structure provided below the pipe member in the vertical direction; a cylindrical ventilation member that is inserted into the connecting pipe from a space below the second fixed structure; is further provided, the second fixed structure has an opening into which the connecting pipe is inserted, An air conditioning system, wherein the ventilation member has a flange portion that is in contact with a lower surface of the second fixed structure.

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