Fiber fabric air pipe

Abstract

The utility model relates to a fiber fabric air pipe which comprises a glass fiber cloth body, sewing edges are arranged on the two opposite sides of the glass fiber cloth body, and the sewing edges on the two sides of the glass fiber cloth body are mutually sewn, so that the glass fiber cloth body is sewn to form an annular air pipe body; the suspension parts are sewn on the outer surface of the glass fiber cloth body, and the suspension parts and the sewing edges are arranged at intervals in the circumferential direction of the annular air pipe body. The fiber fabric air pipe meets the fireproof requirement by adopting the glass fiber cloth body, and meanwhile, the hanging piece is sewn on the surface of the complete glass fiber cloth body instead of the seam between the two sewn edges, so that even if the fiber fabric air pipe adopts the glass fiber cloth, the hanging piece can bear large tension, and the service life of the fiber fabric air pipe is prolonged. The technical problems that the hanging hook is prone to falling off from the sewing position of the first fiber fabric and the second fiber fabric, and quality and safety accidents are caused are solved.

Description

Technical Field

[0001] The present application relates to the technical field of air ducts, and particularly to a fiber fabric air duct. Background Art

[0002] With the continuous improvement of living standards, the application of air conditioning systems has gradually become popular, and more comprehensive requirements have been put forward for each component in the air conditioning system, especially the safety, reliability, air supply effect, and appearance of ventilation ducts. In public places such as railway station waiting halls, large commercial complexes, hospitals, etc., ventilation ducts must meet fire prevention requirements.

[0003] In related technologies, the materials of fiber fabric air ducts on the market are basically polyester fibers, but due to their non-fireproof properties, they are restricted in many fields. In order to effectively improve the fireproof performance of fiber fabric air ducts, a class A non-combustible fiber fabric air duct has emerged on the market, and its air duct material is made of fiberglass cloth.

[0004] Currently, the splicing and pipe combination of fiber fabric air ducts mainly adopt a flat seam process. As Figure 1 shown, the material edges of the first fiber fabric 1' and the second fiber fabric 2' are aligned and sewn together, and the webbing 4' of the hanging hook 3' is mainly sewn and fixed in the middle of the first fiber fabric 1' and the second fiber fabric 2' by means of sandwiching, as Figure 2 shown.

[0005] However, due to the poor bonding force between the warp and weft yarns of fiberglass cloth, the flat tensile strength at the sewing part is relatively poor; if the air duct of fiberglass cloth adopts the Figure 1 flat seam method shown, that is, the webbing 4' of the hanging hook 3' is sandwiched in the middle of the first fiber fabric 1' and the second fiber fabric 2', the load-bearing strength of the hanging hook 3' is relatively low, and when the hanging hook 3' bears a large tensile force, it is very easy to fall off from the sewing part of the first fiber fabric 1' and the second fiber fabric 2', resulting in quality and safety accidents.

[0006] Therefore, it is necessary to design a new fiber fabric air duct to overcome the above problems. Summary of the Invention

[0007] The present application provides a fiber fabric air duct, which can solve the technical problem that the hanging hook is easily detached from the sewing part of the first fiber fabric and the second fiber fabric in related technologies, resulting in quality and safety accidents.

[0008] In a first aspect, an embodiment of the present application provides a fiber fabric air duct, which includes: a fiberglass cloth body, suture edges are provided on both opposite sides of the fiberglass cloth body, and the suture edges on both sides of the fiberglass cloth body are sutured to each other, so that the fiberglass cloth body is sutured to form an annular air duct body; a suspension member, the suspension member is sewn on the outer surface of the fiberglass cloth body, and the suspension member and the suture edge are arranged at intervals in the circumferential direction of the annular air duct body.

[0009] In combination with the first aspect, in an embodiment, the suspension member includes a suspension hook, the suspension hook is connected with a webbing, the webbing is sewn on the outer surface of the fiberglass cloth body, and the webbing and the suture edge are arranged at intervals in the circumferential direction of the annular air duct body.

[0010] In combination with the first aspect, in an embodiment, the suspension member is sewn on the outer surface of the fiberglass cloth body by using a "field" - shaped, "day" - shaped or zigzag pattern stitch.

[0011] In combination with the first aspect, in an embodiment, the suspension member is provided as a continuous cloth strip, the continuous cloth strip is continuously sewn on the outer surface of the fiberglass cloth body by a suture, and the continuous cloth strip and the suture edge are arranged in parallel and at intervals.

[0012] In combination with the first aspect, in an embodiment, the suture edges on both sides of the fiberglass cloth body are sutured to each other to form a suture joint, the suture joint extends along the axial direction of the annular air duct body, and the suspension members are symmetrically distributed on opposite sides of the suture joint.

[0013] In combination with the first aspect, in an embodiment, the suture edges on both sides of the fiberglass cloth body are superposed and adhered to each other along the radial direction of the annular air duct body, and a suture penetrates through the suture edge along the radial direction of the annular air duct body to suture the suture edges on both sides of the fiberglass cloth body.

[0014] In combination with the first aspect, in an embodiment, each suture edge is provided with a first seam edge connecting the fiberglass cloth body and a second seam edge connecting the first seam edge, the first seam edges and the second seam edges of the two suture edges are superposed and adhered to each other along the radial direction of the annular air duct body, and a suture penetrates through the first seam edges and the second seam edges of the two suture edges along the radial direction of the annular air duct body.

[0015] In combination with the first aspect, in an embodiment, the second seam edge of one of the suture edges is clamped between the first seam edge and the second seam edge of the other suture edge, and the second seam edges of the two suture edges are clamped between the first seam edges of the two suture edges.

[0016] In combination with the first aspect, in one embodiment, the second seam edge is formed by at least two bends starting from the connection with the first seam edge.

[0017] In combination with the first aspect, in one embodiment, the sewn edge is integrally formed with the fiberglass cloth body.

[0018] The beneficial effects brought by the technical solutions provided in the embodiments of the present application include:

[0019] By using the fiberglass cloth body, the fiber fabric air duct meets the fire protection requirements. At the same time, the suspension member is sewn on the surface of the complete fiberglass cloth body instead of the seam between the two sewn edges. Even if the fiber fabric air duct uses fiberglass cloth, the suspension member can withstand a large tensile force and is not easily detached, solving the technical problem that the suspension hook in the related art is easily detached from the sewing position of the first fiber fabric and the second fiber fabric, resulting in quality and safety accidents. Description of the Drawings

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0021] Figure 1 Structural schematic diagram of a fiber fabric air duct using a flat seam process in the related art;

[0022] Figure 2 For Figure 1 Detail enlarged view of the sewing position in;

[0023] Figure 3 Structural schematic diagram of a fiber fabric air duct provided by an embodiment of the present application;

[0024] Figure 4 Structural schematic diagram of the suspension member sewn on the surface of the fiberglass cloth body provided by an embodiment of the present application;

[0025] Figure 5 Enlarged structural schematic diagram of the sewing interface provided by an embodiment of the present application.

[0026] In the figure:

[0027] 1. Annular air duct body; 11. Fiberglass cloth body; 12. Sewn edge; 121. First seam edge; 122. Second seam edge; 13. Sewing interface;

[0028] 2. Suspension member; 21. Suspension hook; 22. Webbing;

[0029] 3. Sutures. Detailed implementation manners

[0030] To enable those skilled in the art to better understand the solution of this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are only a part of the embodiments of this application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of this application.

[0031] The embodiment of this application provides a fiber fabric air duct, which can solve the technical problem that in the related art, the hanging hook is likely to fall off from the sewing part of the first fiber fabric and the second fiber fabric, resulting in quality and safety accidents.

[0032] See Figure 3 As shown, a fiber fabric air duct provided by the embodiment of this application includes: a fiberglass cloth body 11, stitching edges 12 are provided on both opposite sides of the fiberglass cloth body 11, and the stitching edges 12 on both sides of the fiberglass cloth body 11 are stitched to each other to form an annular air duct body 1 by stitching the fiberglass cloth body 11; a suspension member 2, the suspension member 2 is sewn on the outer surface of the fiberglass cloth body 11, and the suspension member 2 and the stitching edge 12 are arranged at intervals along the circumferential direction of the annular air duct body 1.

[0033] In this embodiment, the annular air duct body 1 can adopt a complete piece of fiberglass cloth body 11. A stitching edge 12 is provided on each of the left and right sides of the fiberglass cloth body 11. When the fiberglass cloth body 11 is not stitched, it can be in a square structure. After the stitching edges 12 on the left and right sides of this complete piece of fiberglass cloth body 11 are butted and stitched together, an annular air duct body 1 with only one stitching interface 13 is spliced. The cross-section of the annular air duct body 1 can be circular, square or other shapes, and can be set according to actual needs. Of course, in other embodiments, two or more pieces of fiberglass cloth body 11 can also be used to stitch and form the annular air duct body 1. In this embodiment, one piece of fiberglass cloth body 11 is stitched into the annular air duct body 1, so that there is only one stitching interface 13 on the annular air duct body 1. The fewer the interfaces, the higher the strength of the annular air duct body 1. When the annular air duct body 1 is pressurized inside, the annular air duct body 1 is not easily burst open.

[0034] In this embodiment, the fiber fabric air duct meets the fire protection requirements by using the glass fiber cloth body 11. At the same time, the suspension member 2 is sewn on the surface of the complete glass fiber cloth body 11 instead of the seam between the two stitched edges 12. The suspension member 2 bears the vertical pulling force acting on a complete glass fiber cloth body 11, rather than the seam between the two stitched edges 12. This enables the fiber fabric air duct to withstand a large pulling force even when using glass fiber cloth and is not easily detached, solving the technical problem in the related art that the suspension hook 21 is easily detached from the stitched part of the first fiber fabric and the second fiber fabric, resulting in quality and safety accidents.

[0035] Further, referring to Figure 3 and Figure 4 shown, in one embodiment, the suspension member 2 includes a suspension hook 21, the suspension hook 21 is connected with a webbing 22, the webbing 22 is sewn on the outer surface of the glass fiber cloth body 11, and the webbing 22 and the stitched edge 12 are arranged at intervals along the circumferential direction of the annular air duct body 1. In this embodiment, the suspension member 2 adopts the method of combining the suspension hook 21 and the webbing 22. The suspension hook 21 is fixed to the surface of the glass fiber cloth body 11 through the webbing 22. The webbing 22 is not sewn between the two stitched edges 12, but is sewn at a position where there is no stitched edge 12. Since there is no stitching interface 13 at the position where there is no stitched edge 12, the overall connection strength of the glass fiber cloth body 11 is higher, and thus the joint strength with the webbing 22 is also higher. In this embodiment, two rows of suspension hooks 21 can be arranged along the axial direction of the annular air duct body 1, each row having a plurality of suspension hooks 21, and the two rows of suspension hooks 21 are symmetrically distributed on the left and right sides of the stitching interface 13.

[0036] Further, referring to Figure 4 shown, in one embodiment, the suspension member 2 is sewn on the outer surface of the glass fiber cloth body 11 in a "field" - shaped, "day" - shaped or - shaped pattern stitch. In this embodiment, when the suspension member 2 is sewn on the outer surface of the glass fiber cloth body 11, the sewing thread 3 preferably adopts a pattern stitch to increase the contact area between the suspension member 2 and the glass fiber cloth body 11, thereby enhancing the load - bearing strength of the suspension member 2. Of course, in addition to the "field" - shaped, "day" - shaped or - shaped pattern stitch, other stitches with the same effect can also be used, which are not limited herein.

[0037] Further, in some alternative embodiments, the suspension member 2 is provided as a continuous cloth strip, and the continuous cloth strip is continuously sewn to the outer surface of the fiberglass cloth body 11 by a sewing thread 3, and the continuous cloth strip is arranged in parallel and spaced apart from the sewing edge 12. In this embodiment, the suspension member 2 is provided as a continuous and suspendable cloth strip, and the continuous cloth strip is continuously sewn to the fiberglass cloth body 11, which can increase the contact area between the suspension member 2 and the fiberglass cloth body 11 and improve the bearing strength of the suspension.

[0038] Further, referring to Figure 3 As shown, in one embodiment, the sewing edges 12 on both sides of the fiberglass cloth body 11 are sewn to each other to form a sewing interface 13, and the sewing interface 13 extends along the axis direction of the annular air duct body 1, and the suspension members 2 are symmetrically distributed on opposite sides of the sewing interface 13. In this embodiment, a suspension member 2 is provided on the left side of the sewing interface 13, and a suspension member 2 is also provided on the right side of the sewing interface 13, and the suspension members 2 on the left and right sides are symmetrically distributed.

[0039] In the related art, the splicing and pipe joining of the fiber fabric air duct adopt the flat sewing process as Figure 1 As shown, in order to ensure the appearance of the outer surface of the air duct, during sewing, the material edges of the first fiber fabric 1' and the second fiber fabric 2' are bent radially into the interior of the entire air duct, and are aligned and sewn together along the tangential direction of the air duct. The sewing thread 5' also penetrates the first fiber fabric 1' and the second fiber fabric 2' along the tangential direction. After sewing, a part of the material of the edges of the first fiber fabric 1' and the second fiber fabric 2' protrudes radially into the air duct interior. This will make the inner wall of the air duct uneven and increase the air supply resistance; at the same time, since the material edges of a piece of the first fiber fabric 1' and a piece of the second fiber fabric 2' are directly sewn together, when the pressure inside the pipe is large and the fiber fabric is made of fiberglass cloth, the sewing place is easy to burst open.

[0040] Based on the above technical solutions, referring to Figure 3 As shown, in some embodiments, the sewing edges 12 on both sides of the fiberglass cloth body 11 are superposed and adhered along the radial direction of the annular air duct body 1, and the sewing thread 3 penetrates the sewing edges 12 along the radial direction of the annular air duct body 1 to sew the sewing edges 12 on both sides of the fiberglass cloth body 11. In this embodiment, when sewing the fiberglass cloth body 11, the sewing edges 12 on the left and right sides of the fiberglass cloth body 11 are superposed and adhered along the radial direction of the annular air duct body 1. After superposition, the width directions of the two sewing edges 12 both extend along the circumferential direction of the annular air duct body 1, rather than being bent radially into the interior of the annular air duct body 1. After being superposed and adhered along the radial direction, the sewing edge 12 hardly protrudes into the annular air duct body 1, ensuring the flatness of the inner wall of the annular air duct body 1 and greatly reducing the air supply resistance.

[0041] Further, referring to Figure 5 As shown, in one embodiment, each of the stitching edges 12 is provided with a first stitching edge 121 connecting the fiberglass cloth body 11 and a second stitching edge 122 connecting the first stitching edge 121. The first stitching edges 121 and the second stitching edges 122 of the two stitching edges 12 are superposed and adhered along the radial direction of the annular air duct body 1, and the sewing thread 3 penetrates through the first stitching edges 121 and the second stitching edges 122 of the two stitching edges 12 along the radial direction of the annular air duct body 1. In this embodiment, a first stitching edge 121 and a second stitching edge 122 are provided on each stitching edge 12, and the two first stitching edges 121 and the two second stitching edges 122 are superposed and adhered along the radial direction, that is, a total of four stitching edges are superposed together at the stitching interface 13 and sewn together by the sewing thread 3, which can increase the connection strength of the two stitching edges 12, and the flat tensile strength at the sewing place is relatively good.

[0042] Based on the above technical solution, referring to Figure 5 As shown, in one embodiment, the second stitching edge 122 of one of the stitching edges 12 is clamped between the first stitching edge 121 and the second stitching edge 122 of the other stitching edge 12, and the second stitching edges 122 of the two stitching edges 12 are clamped between the first stitching edges 121 of the two stitching edges 12. In this embodiment, at the stitching interface 13, from the outside to the inside are successively the first stitching edge 121 of the left stitching edge 12, the second stitching edge 122 of the right stitching edge 12, the second stitching edge 122 of the left stitching edge 12, and the first stitching edge 121 of the right stitching edge 12. Sewn together in this superposition manner, the left stitching edge 12 and the right stitching edge 12 are wound around each other and restricted from each other, further increasing the connection strength of the two stitching edges 12. Even if a fiberglass cloth with poor bonding force is used, the bonding force can be guaranteed at the stitching interface 13. When the pressure inside the pipe is large, the sewing place is not easy to burst open.

[0043] Of course, in other embodiments, other superposition methods can also be adopted. For example, from the outside to the inside are successively: the first stitching edge 121 of the left stitching edge 12, the second stitching edge 122 of the left stitching edge 12, the second stitching edge 122 of the right stitching edge 12, and the first stitching edge 121 of the right stitching edge 12.

[0044] Further, the second stitching edge 122 is formed by bending at least twice from the connection with the first stitching edge 121. In this embodiment, the second stitching edge 122 is preferably formed by bending twice from the connection with the first stitching edge 121, so that the second stitching edge 122 of the right stitching edge 12 can be received in the bent portion of the left stitching edge 12, and the second stitching edge 122 of the left stitching edge 12 can be received in the bent portion of the right stitching edge 12, providing a receiving space for the second stitching edge 122.

[0045] Preferably, the stitching edge 12 in this embodiment is integrally formed with the fiberglass cloth body 11. That is to say, the stitching edge 12 is also made of fiberglass cloth material.

[0046] Compared with the solutions in the related art, the fiber fabric air duct in this application has higher pressure resistance, and the hanging member 2 has higher load-bearing strength; and by sewing the hanging member 2 in the above manner, the hanging member 2 is related to the width of the fiberglass cloth body 11 and the circumference of the annular air duct body 1. The material segmentation of the annular air duct body 1 does not need to consider the suspension position; at the same time, in this application, the number of segments of the annular air duct body 1 is smaller, the stitching interfaces 13 are also fewer, the production efficiency is higher, and the material utilization rate is also higher. At the same time, the integrity and appearance of the annular air duct body 1 are more beautiful.

[0047] In the description of this application, it should be noted that the orientation or positional relationship indicated by terms such as "upper" and "lower" is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of this application. Unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific situations.

[0048] It should be noted that in this application, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "including", "comprising" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, the element defined by the statement "including a..." does not exclude the existence of additional identical elements in the process, method, article or device including the said element.

[0049] The above are only specific embodiments of the present application, enabling those skilled in the art to understand or implement the present application. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to these embodiments shown herein, but rather will be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A fiber fabric air duct, characterized in that: It includes: A glass fiber cloth body (11), wherein two opposite sides of the glass fiber cloth body (11) are provided with sewing edges (12), and the sewing edges (12) on both sides of the glass fiber cloth body (11) are sewn together, so that the glass fiber cloth body (11) is sewn to form an annular air duct body (1); A hanging piece (2), wherein the hanging piece (2) is sewn to the outer surface of the glass fiber cloth body (11), and the hanging piece (2) and the sewing edge (12) are arranged at intervals along the circumferential direction of the annular air duct body (1).

2. The fiber fabric air duct according to claim 1, characterized in that: The hanging member (2) comprises a hanging hook (21), the hanging hook (21) is connected to a webbing (22), the webbing (22) is sewn to the outer surface of the glass fiber cloth body (11), and the webbing (22) and the sewing edge (12) are arranged at intervals along the circumferential direction of the annular air duct body (1).

3. The fiber fabric air duct according to claim 1 or 2, characterized in that: The hanging member (2) is sewn on the outer surface of the fiberglass cloth body (11) by using a "field" - shaped, "sun" - shaped or - shaped fancy stitch.

4. The fiber fabric air duct according to claim 1, characterized in that: The hanging member (2) is configured as a continuous cloth strip, the continuous cloth strip is continuously sewn to the outer surface of the glass fiber cloth body (11) through a stitching line (3), and the continuous cloth strip is arranged parallel to the sewing edge (12) and spaced apart.

5. The fiber fabric air duct according to claim 1, characterized in that: The sewing edges (12) on both sides of the glass fiber cloth body (11) are sewn together to form a sewing interface (13), and the sewing interface (13) extends along the axial direction of the annular air duct body (1), and the hanging parts (2) are symmetrically distributed on opposite sides of the sewing interface (13).

6. The fiber fabric air duct according to claim 1, characterized in that: The stitching edges (12) on both sides of the glass fiber cloth body (11) are overlapped and bonded along the radial direction of the annular air duct body (1), and the stitching lines (3) pass through the stitching edges (12) along the radial direction of the annular air duct body (1) to sew the stitching edges (12) on both sides of the glass fiber cloth body (11).

7. The fiber fabric air duct according to claim 6, characterized in that: Each of the stitching edges (12) is provided with a first stitching edge (121) connected to the glass fiber cloth body (11) and a second stitching edge (122) connected to the first stitching edge (121); the first stitching edges (121) and the second stitching edges (122) of the two stitching edges (12) are both overlapped and attached along the radial direction of the annular air duct body (1); and the stitching line (3) passes through the first stitching edges (121) and the second stitching edges (122) of the two stitching edges (12) along the radial direction of the annular air duct body (1).

8. The fiber fabric air duct according to claim 7, characterized in that: The second seam edge (122) of one of the sewing edges (12) is sandwiched between the first seam edge (121) and the second seam edge (122) of the other sewing edge (12), and the second seam edges (122) of two of the sewing edges (12) are sandwiched between the first seam edges (121) of two of the sewing edges (12).

9. The fiber fabric air duct according to claim 8, characterized in that: The second seam edge (122) is formed by at least two bendings at a connection point with the first seam edge (121).

10. The fiber fabric air duct according to claim 1, characterized in that: The stitching edge (12) and the glass fiber cloth body (11) are integrally formed.

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