Flexible supporting air pipe

Abstract

The invention relates to a flexible supporting air pipe which comprises a flexible air pipe body and an inner supporting assembly, the inner supporting assembly comprises a plurality of supporting rings and at least one connecting soft belt, the supporting rings are sequentially arranged in the length direction of the flexible air pipe body, and the supporting rings are all arranged in the flexible air pipe body and abut against the inner wall of the flexible air pipe body; the connecting soft belt is connected with the plurality of supporting rings; the multiple supporting rings are connected through the connecting soft belt, a long-strip-shaped structure formed by the multiple supporting rings penetrates through the whole flexible air pipe body, and the multiple supporting rings abut against the inner wall of the flexible air pipe body so that the supporting function of the flexible air pipe body can be achieved; when the flexible supporting air pipe serves as an air supply pipe, due to the fact that the supporting rings are connected through the connecting soft belts, the supporting rings are very convenient to install; when the flexible supporting air pipe serves as an air return pipe, the two adjacent supporting rings can move relatively through the arranged connecting soft belts, and local blocking or obstacles can be effectively avoided.

Description

Technical Field

[0001] The invention relates to the technical field of central air-conditioning air ducts, and in particular to a flexible support air duct. Background Art

[0002] The central air-conditioning duct mainly includes supply air duct and return air duct. Among them, the flexible supply air duct mainly has round and oblate shapes, while the flexible return air duct is mainly rectangular.

[0003] When the flexible air duct is used as an air supply duct, the cross-section of the air duct in the non-ventilated state presents an irregular shape and has poor aesthetics. Therefore, it is necessary to place multiple support rings arranged along its length inside it. However, the multiple support rings are independent of each other, which makes the installation process more complicated.

[0004] When a flexible duct is used as a return air duct, the pressure inside the duct after ventilation is less than the pressure outside the duct, and the duct is deflated due to the negative pressure. Therefore, a rigid rectangular support frame needs to be placed in the duct. However, after the rectangular support frame is installed, the duct loses its original flexibility. If it encounters local obstructions or obstacles during installation, it cannot be flexibly avoided, affecting construction efficiency and quality.

[0005] In summary, when flexible air ducts are currently used in central air-conditioning air ducts, the supporting structure inside the air ducts is inconvenient to install or affects the installation of the air ducts. At the same time, the supporting structures inside the air inlet duct and the air return duct are completely different and cannot be produced in a unified manner, resulting in high costs. Summary of the invention

[0006] In view of this, it is necessary to provide a flexible supporting air duct to solve the problem that when the current flexible air duct is used in central air-conditioning air duct, the supporting structure inside the air duct is inconvenient to install or affects the installation of the air duct. At the same time, the supporting structures inside the air inlet duct and the return air duct are completely different, cannot be produced in a unified manner, and the cost is high.

[0007] The present invention provides a flexible support air duct, comprising a flexible air duct body and an inner support component, the inner support component comprising a plurality of support rings and at least one connecting soft belt, the plurality of support rings are arranged in sequence along the length direction of the flexible air duct body, the plurality of support rings are all built into the flexible air duct body and abut against the inner wall of the flexible air duct body, and the connecting soft belt connects the plurality of support rings.

[0008] Furthermore, there are multiple connecting flexible belts, and the multiple connecting flexible belts are evenly arranged along the circumference of the connecting hose.

[0009] Furthermore, the flexible supporting air duct also includes a connecting piece, and the flexible air duct body is detachably connected to the inner supporting assembly via the connecting piece.

[0010] Furthermore, the connecting member includes a first long connecting belt and a second long connecting belt, the first long connecting belt and the second long connecting belt both extend along the length of the flexible air duct body, the first long connecting belt is fixedly connected to the plurality of support rings, the second long connecting belt is fixedly connected to the inner wall of the flexible air duct body, and the first long connecting belt and the second long connecting belt are detachably connected.

[0011] Furthermore, the first long connecting belt is fixedly connected to a side of the connecting soft belt located outside the supporting ring.

[0012] Furthermore, the flexible support air duct also includes a tie rod, which extends along the length direction of the flexible air duct body and passes through the multiple support rings. Both sides of the tie rod along the length direction are connected to the inner wall of the flexible air duct body through the connecting soft belt. The tie rod is used to control the expansion height of the flexible air duct body after ventilation.

[0013] Furthermore, the connecting member includes two third long connecting belts and two fourth long connecting belts arranged on both sides of the tensioning rod along its length direction, the third long connecting belt and the fourth long connecting belt both extend along the length of the flexible air duct body, the third long connecting belt is fixedly connected to one side of the connecting soft belt located inside the support ring, the fourth long connecting belt is fixedly connected to the tensioning rod, and the third long connecting belt and the fourth long connecting belt are detachably connected.

[0014] Furthermore, the third long connecting belt is fixedly connected to one side of the connecting soft belt located inside the supporting ring.

[0015] Furthermore, the cross-section of the flexible air duct body after ventilation is circular, semicircular, rectangular or oval, and the corresponding support ring is circular, semicircular, rectangular or oval.

[0016] Furthermore, the connecting member includes two first annular connecting belts and two second annular connecting belts, the two first annular connecting belts are respectively fixedly connected to the two ends of the flexible air duct body, the two second annular connecting belts are respectively connected to the two support rings that are farthest apart, and the two first annular connecting belts are respectively detachably connected to the two second annular connecting belts.

[0017] Compared with the prior art, multiple support rings are connected by connecting soft belts, so that the long strip structure formed by the multiple support rings runs through the entire flexible air duct body, and the multiple support rings abut against the inner wall of the flexible air duct body to realize the supporting function of the flexible air duct body; when the flexible support air duct is used as an air supply duct, since the multiple support rings are connected via the connecting soft belt, the installation of the multiple support rings is extremely convenient; when the flexible support air duct is used as a return air duct, the adjacent two support rings can be moved relative to each other through the set connecting soft belt, which can effectively avoid local obstructions or obstacles; at the same time, the flexible support air duct can be used as both an air inlet duct and a return air duct, which is convenient for unified production and reduces costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic diagram of the overall structure of a flexible support air duct provided in an embodiment of the present invention; Figure 2 A schematic diagram of the structure of an inner support assembly in a flexible support air duct provided in an embodiment of the present invention; Figure 3 A schematic diagram of the structure of the connection between the second long connecting belt and the flexible air duct body in the flexible supporting air duct provided in an embodiment of the present invention; Figure 4 A schematic diagram of the structure of the fourth long connecting belt and the tie rods in the flexible supporting air duct provided by an embodiment of the present invention; Figure 5 A schematic diagram of the structure of the connection between the first annular connecting belt and the second annular connecting belt in the flexible supporting air duct provided in an embodiment of the present invention; Figure 6 A schematic structural diagram of a flexible support air duct provided in an embodiment of the present invention in which multiple support rings are connected to a first annular connecting belt. DETAILED DESCRIPTION

[0019] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings, wherein the accompanying drawings constitute a part of this application and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not used to limit the scope of the present invention.

[0020] like Figure 1-2 As shown, a flexible support air duct provided by the present invention includes a flexible air duct body M and an inner support component 100, the inner support component 100 includes a plurality of support rings 110 and at least one connecting soft belt 120, the plurality of support rings 110 are arranged in sequence along the length direction of the flexible air duct body M, the plurality of support rings 110 are all built into the flexible air duct body M and abut against the inner wall of the flexible air duct body M, and the connecting soft belt 120 connects the plurality of support rings 110.

[0021] During implementation, multiple support rings 110 are connected by connecting the soft belt 120, so that the long strip structure formed by the multiple support rings 110 runs through the entire flexible duct body M, and the multiple support rings 110 abut against the inner wall of the flexible duct body M to achieve the support function of the flexible duct body M; when the flexible support duct is used as an air supply duct, since the multiple support rings 110 are connected via the connecting soft belt 120, the installation of the multiple support rings 110 is extremely convenient; when the flexible support duct is used as a return air duct, the adjacent two support rings 110 can be moved relative to each other through the set connecting soft belt 120, which can effectively avoid local obstructions or obstacles; at the same time, the flexible support duct can be used as both an air inlet duct and a return air duct, which is convenient for unified production and reduces costs.

[0022] The flexible duct body M in this embodiment is the external structure of the flexible supporting duct, and the internal support assembly 100 is the internal structure of the flexible supporting duct, which is used to support the flexible duct body M from the inside so that the flexible duct body M can maintain its interface shape.

[0023] Among them, the internal support component 100 includes multiple support rings 110 and at least one connecting soft belt 120. The multiple support rings 110 are arranged in sequence along the length direction of the flexible air duct body M. The multiple support rings 110 are all built into the flexible air duct body M and abut against the inner wall of the flexible air duct body M. The connecting soft belt 120 connects the multiple support rings 110.

[0024] The shape of the support ring 110 in this embodiment should be compatible with the inner circle contour of the flexible duct body M to ensure that the outer circle of the support ring 110 can completely abut against the inner wall of the flexible duct body M, thereby increasing the contact area and improving the support effect.

[0025] The connection soft belt 120 of this embodiment is in the shape of a long strip, and a plurality of through holes are arranged in sequence along the length direction of the connection soft belt 120, so that the support ring 110 can pass through the plurality of through holes. At the same time, glue or the like is coated on the inner wall of the through hole, so that the connection soft belt 120 and the support ring 110 are tightly connected. In order to facilitate the support ring 110 to pass through the connection soft belt 120, a notch can be provided on the support ring 110, and the through hole can be passed through the notch of the support ring 110. It should be noted that after the support ring 110 and the connection soft belt 120 are connected, the notch of the support ring 110 can be repaired (for example, filled with glue or the like).

[0026] Of course, in other embodiments, the connecting soft belt 120 can also be adhered to the outer wall or inner wall of the plurality of support rings 110 by means of a glue bracket. This is not limited in the embodiments of the present invention, and a method that is convenient for installation and stable for connection is preferred.

[0027] In one embodiment, there are multiple flexible connection belts 120 , and the multiple flexible connection belts 120 are evenly arranged along the circumference of the connecting hose.

[0028] It is understandable that the number of connecting flexible belts 120 should be determined according to the diameter of the support ring 110 (i.e., the inner diameter of the flexible duct body M). Specifically, the larger the diameter of the support ring 110, the more connecting flexible belts 120 are required to be set. Conversely, the smaller the diameter of the support ring 110, the smaller the number of connecting flexible belts 120 are required to be set. The number of connecting flexible belts 120 is adapted to the actual connection requirements between multiple support rings 110.

[0029] In one embodiment, the flexible support duct also includes a connector 200, and the flexible duct body M is detachably connected to the inner support assembly 100 via the connector 200, which can effectively prevent the inner support assembly 100 from moving relative to the flexible duct body M and affecting the construction and use effects.

[0030] In the first embodiment, the connection between the flexible duct body M and the plurality of support rings 110 can be realized along the length direction of the flexible support duct by means of the provided connection piece 200, as follows: like Figure 2-3 As shown, the connecting member 200 includes a first long connecting belt 210 and a second long connecting belt 220. The first long connecting belt 210 and the second long connecting belt 220 both extend along the length of the flexible duct body M. The first long connecting belt 210 is fixedly connected to a plurality of support rings 110, and the second long connecting belt 220 is fixedly connected to the inner wall of the flexible duct body M. The first long connecting belt 210 and the second long connecting belt 220 are detachably connected.

[0031] In addition to the first long connecting belt 210 being directly connected to the plurality of supporting rings 110 , in another embodiment, the first long connecting belt 210 is fixedly connected to a side of the connecting soft belt 120 located outside the supporting ring 110 .

[0032] In order to improve the tensile and compressive performance of the support ring 110, the flexible support air duct in this embodiment also includes a tie rod 300, which extends along the length direction of the flexible air duct body M and passes through multiple support rings 110. The tie rod 300 is fixedly connected to the inner wall of the flexible air duct body M on both sides along its length direction through the connecting soft belt 120. The tie rod 300 is used to control the expansion height change of the flexible air duct body M after ventilation.

[0033] like Figure 2 and Figure 4As shown, to facilitate the installation of the above-mentioned tie rod 300, in this embodiment, the connecting member 200 includes two third long connecting belts 230 and two fourth long connecting belts 240 arranged on both sides of the tie rod 300 along its length direction, the third long connecting belt 230 and the fourth long connecting belt 240 both extend along the length of the flexible air duct body M, the third long connecting belt 230 is fixedly connected to the side of the connecting soft belt 120 located inside the support ring 110, the fourth long connecting belt 240 is fixedly connected to the tie rod 300, and the third long connecting belt 230 and the fourth long connecting belt 240 are detachably connected.

[0034] It is understandable that the circumferential angle of the tie rod 300 is determined according to the deformation direction of the flexible hose body. Generally, the tie rod 300 is vertically arranged. Of course, the tie rod 300 may be arranged horizontally or inclined.

[0035] In addition to being directly connected to the plurality of support rings 110 , in another embodiment, the third long connecting belt 230 is fixedly connected to one side of the connecting soft belt 120 located inside the support ring 110 .

[0036] In this embodiment, the cross-section of the flexible duct body M after ventilation is circular, semicircular, rectangular or oblate, and the corresponding support ring 110 is circular, semicircular, rectangular or oblate. In the first embodiment, the flexible supporting air duct can be used as a return air duct of a central air-conditioning air duct, wherein the flexible air duct body M is rectangular and the supporting ring 110 is rectangular.

[0037] In the second embodiment, the connection between the flexible duct body M and the plurality of support rings 110 can be realized at both ends of the flexible support duct by means of the provided connection piece 200, as follows: like Figure 5-6 As shown, the connecting member 200 includes two first annular connecting belts 250 and two second annular connecting belts 260. The two first annular connecting belts 250 are fixedly connected to the two ends of the flexible air duct body M, respectively, and the two second annular connecting belts 260 are connected to the two support rings 110 that are farthest apart, respectively. The two first annular connecting belts 250 are detachably connected to the two second annular connecting belts 260, respectively.

[0038] In the second embodiment, the flexible supporting air duct can be used as an air supply duct of a central air-conditioning air duct, wherein the flexible air duct body M is circular and the supporting ring 110 is circular.

[0039] It can be understood that the above-mentioned first long connecting belt 210 and the second long connecting belt 220, the third long connecting belt 230 and the fourth long connecting belt 240, as well as the first annular connecting belt 250 and the second annular connecting belt 260, can all be realized by the structure of a zipper, that is, one of the connecting belts is the male chain of the zipper, and the other connecting belt is the female chain of the zipper, thereby realizing quick disassembly and assembly between the two connecting belts.

[0040] Compared with existing technologies: 1) During the installation process, the outermost support ring 110 is pulled through the flexible duct body M. Under the action of the connecting soft belt 120, the remaining support rings 110 can be driven to move into the flexible duct body M. The installation is simple and efficient, and it also has good flexibility, can effectively avoid local obstructions, and provides better seismic performance, and no on-site assembly is required; 2) By providing the first long connecting strip 210 and the second long connecting strip 220, the multiple support rings 110 can be quickly connected to the inner wall of the flexible air duct body M, thereby preventing the multiple support rings 110 from moving inside the flexible air duct body M, thereby affecting the normal use of the support rings 110; 3) The third long connecting belt 230 and the fourth long connecting belt 240 are provided to realize quick connection between the plurality of support rings 110 and the tie rods 300; 4) The first annular connecting belt 250 and the second annular connecting belt 260 are provided to realize the quick connection between the multiple support rings 110 and the two ends of the flexible air duct body M, and further prevent the multiple support rings 110 from moving inside the flexible air duct body M; 5) The flexible duct body M, connector 200 and tie rod 300 in this solution can be sold separately, and both the air supply duct (round and oblate) and the air return duct can be used universally, which improves the versatility and standardization rate of the product.

[0041] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by any technician familiar with the technical field within the technical scope disclosed by the present invention should be covered within the protection scope of the present invention.

Claims

1. A flexible support duct, characterized in that: include: Flexible duct body; An inner support assembly includes a plurality of support rings and at least one connecting soft belt. The plurality of support rings are arranged in sequence along the length direction of the flexible air duct body. The plurality of support rings are all built into the flexible air duct body and abut against the inner wall of the flexible air duct body. The connecting soft belt connects the plurality of support rings.

2. The flexible support duct according to claim 1, characterized in that: There are multiple connecting soft belts, and the multiple connecting soft belts are evenly arranged along the circumference of the connecting hose.

3. The flexible support duct according to claim 1, characterized in that: The flexible supporting air duct also includes a connecting piece, and the flexible air duct body is detachably connected to the inner supporting assembly via the connecting piece.

4. The flexible support duct according to claim 3, characterized in that: The connecting member includes a first long connecting belt and a second long connecting belt, both of which extend along the length of the flexible air duct body, the first long connecting belt is fixedly connected to the plurality of support rings, the second long connecting belt is fixedly connected to the inner wall of the flexible air duct body, and the first long connecting belt and the second long connecting belt are detachably connected.

5. The flexible support duct according to claim 4, characterized in that: The first long connecting belt is fixedly connected to a side of the connecting soft belt located outside the supporting ring.

6. The flexible support duct according to claim 3, characterized in that: The flexible support air duct also includes a tie rod, which extends along the length direction of the flexible air duct body and passes through multiple support rings. Both sides of the tie rod along the length direction are connected to the inner wall of the flexible air duct body through the connecting soft belt. The tie rod is used to control the expansion height of the flexible air duct body after ventilation.

7. The flexible support duct according to claim 6, characterized in that: The connecting member includes two third long connecting belts and two fourth long connecting belts arranged on both sides of the tensioning rod along its length direction, the third long connecting belt and the fourth long connecting belt both extend along the length of the flexible air duct body, the third long connecting belt is fixedly connected to one side of the connecting soft belt located inside the support ring, the fourth long connecting belt is fixedly connected to the tensioning rod, and the third long connecting belt and the fourth long connecting belt are detachably connected.

8. The flexible support duct according to claim 7, characterized in that: The third long connecting belt is fixedly connected to one side of the connecting soft belt located inside the supporting ring.

9. The flexible support air duct according to any one of claims 4 to 8, characterized in that: The cross-section of the flexible air duct body after ventilation is circular, semicircular, rectangular or oval, and the corresponding support ring is circular, semicircular, rectangular or oval.

10. The flexible support duct according to claim 3, characterized in that: The connecting member includes two first annular connecting belts and two second annular connecting belts, the two first annular connecting belts are respectively fixedly connected to the two ends of the flexible air duct body, the two second annular connecting belts are respectively connected to the two support rings farthest apart, and the two first annular connecting belts are respectively detachably connected to the two second annular connecting belts.

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