Light air duct

Abstract

A light air duct comprises pipelines and connecting pieces, and the connecting pieces are used for being connected with the pipelines. The connecting piece is of a double-layer structure, and the whole connecting piece is I-shaped; the connecting piece comprises a sealing part, and the whole sealing part is in a C shape. The utility model provides an efficient and portable air duct mounting assembly, and the overall weight of an air duct is reduced; by means of the unique connecting piece design, a flange is not needed, materials are saved, convenience can be brought to construction of workers, the air channel can be assembled only through manual work or an opening pressing machine, and tedious welding, punching and gluing work is not needed any more.

Description

TECHNICAL FIELD

[0001] The present application relates to a light air duct, belonging to the technical field of ventilation. BACKGROUND

[0002] The current galvanized iron sheet made of ventilation duct is more common, but also adopts the flange connection mode, causing the weight of each square meter to be more than 10kg, which increases the load of the building, has higher requirements for the building structure and installation support, and also brings certain difficulties to installation and transportation.

[0003] Meanwhile, the high maintenance cost is also an important problem that troubles the user, because the flange generally adopts paint spraying for rust prevention treatment; it is necessary to regularly carry out rust removal, paint brushing and other treatments, and re-punching of the aging sealing glue, which increases the maintenance cost and workload.

[0004] The market needs a light weight, easy to install, simple structure air duct to solve the problems existing in the prior art. CONTENT OF THE UTILITY MODEL

[0005] The utility model aims to solve at least one of the technical problems existing in the prior art, provide a light air duct, which can solve the problems of heavy quality of the existing pipeline, inconvenient transportation, improve the installation work efficiency and reduce the building load.

[0006] The present application provides a light air duct,

[0007] The connecting piece is used for connecting the pipeline;

[0008] The connecting piece is a double-layer structure and has an overall I-shaped structure;

[0009] The connecting piece comprises a sealing part, and the sealing part has an overall C-shaped structure.

[0010] Further, the main body of the pipeline is a pipe body, the pipe body has a thin-wall structure, and the pipeline has a rectangular cross section,

[0011] Sealing edges are arranged at both ends of each surface of the pipeline; the sealing edges have an L-shaped structure, and the sealing edges are located outside the pipe body;

[0012] The length of the sealing edge is consistent with the length of each rectangular surface;

[0013] The sealing part of the connecting piece and the sealing edge of the pipeline are engaged with each other to realize sealing connection.

[0014] Further, the connecting piece comprises a connecting body a and a connecting body b;

[0015] The connecting body b is connected to a group of parallel sealing edges of the pipeline, and the opposite two sealing edges are inserted into the C-shaped structure of the sealing part;

[0016] The length of the sealing part of connector b is the same as the length of the locked sealing edge;

[0017] Connector a connects to another set of parallel sealing edges;

[0018] The length of connector a is the sum of the lengths of the parallel sealing edges connected to connector a and twice the height of connector b.

[0019] Furthermore, the connector is a connecting strip.

[0020] The connecting strip is divided into connecting strip one and connecting strip two;

[0021] Both connecting strip one and connecting strip two include a sealing part. The sealing part is C-shaped and has an opening, with a sealing arm on each side.

[0022] An extension is provided on the side of the sealing part away from the opening, and a locking part is provided on the other side of the extension.

[0023] Furthermore, the sealing part, extension part, and locking part are all double-layered structures;

[0024] The extension section is a double-layer structure formed by extending the outer layer of the sealing part;

[0025] The locking part includes a blind head and a closed end, which are located on both sides of the extension;

[0026] The blind head is O-shaped, and is a double-layer structure formed by a foldback of the extension section;

[0027] The closed end has a double U-shaped cross shape, which is a closed double-layer structure formed by the mutual locking of the free ends of the two layers of the extension section.

[0028] Furthermore, the connecting strip 2 has connecting parts at both ends of the double-layer extension, the connecting parts are L-shaped, and the two connecting parts of the double-layer extension are T-shaped when they are close together.

[0029] Furthermore, connector a adopts connector strip one;

[0030] Connector b can be either connector one or connector two;

[0031] When connector b uses connector strip two;

[0032] Connector a has a set of parallel sealing edges, and the connecting part of connector two and the sealing edge of the pipe are located within the C-shaped structure of the sealing part of connector a.

[0033] Furthermore, the sealing part of the connector is fixed to the pipe body using a fastener, which passes through the sealing part of the connector, the sealing edge of the pipe, and the pipe body.

[0034] Further, an angle piece is arranged on the end surface of the connector a;

[0035] The angle piece is a hollow shell with one side opening, and has an I shape or a U shape as a whole;

[0036] The angle piece is sequentially provided with a locking section, an extension section, a sealing section and a clamping section;

[0037] The locking section is clamped into the locking part of the connector a;

[0038] The extension section is clamped into the extension part of the connector a;

[0039] The sealing section is clamped into the sealing part of the connector a;

[0040] The clamping section is clamped into the locking part of the connector b, and the length of the clamping section is adjusted according to the installation requirement;

[0041] The fixing piece connects and fixes the angle piece and the connector a;

[0042] The fixing position of the fixing piece is arranged on the extension section, and the fixing piece penetrates the angle piece and the connector.

[0043] Further, the fixing piece is a rivet or a bolt.

[0044] Compared with the prior art, the light wind channel provided by the application has the beneficial effects that,

[0045] The application provides a high-efficiency and light wind channel installation assembly, reduces the overall weight of the wind channel, and saves materials by using a unique connector design, and brings convenience to the construction of workers, and the assembly of the wind channel can be completed by hand or a pressing machine, and complicated welding, punching and gluing work is no longer needed. BRIEF DESCRIPTION OF DRAWINGS

[0046] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0047] Among them:

[0048] Figure 1 It is a perspective view of the connecting strip one in an embodiment;

[0049] Figure 2 It is a side view of the connecting strip one in an embodiment;

[0050] Figure 3 It is a perspective view of the connecting strip two in an embodiment;

[0051] Figure 4 side view of the connecting strip two in one embodiment;

[0052] Figure 5 top view of the connecting strip two in one embodiment;

[0053] Figure 6 perspective view of the pipe in one embodiment;

[0054] Figure 7 front view of the pipe in one embodiment;

[0055] Figure 8 side view of the pipe in one embodiment;

[0056] Figure 9 perspective view of the corner piece in one embodiment;

[0057] Figure 10 front view of the corner piece in one embodiment;

[0058] Figure 11 perspective view of the combined connection of the connecting body and the pipe in one embodiment;

[0059] Figure 12 front view of Figure 11 ;

[0060] Figure 13 partial enlarged view of Figure 12 ;

[0061] Figure 14 side view of Figure 11 ;

[0062] Figure 15 perspective view of the overall connection of the connecting body and the pipe after the connecting body and the pipe are pressed together and the corner piece is installed in one embodiment;

[0063] Figure 16 front view of Figure 15 ;

[0064] Figure 17 top view of Figure 15 ;

[0065] Figure 18 side view of Figure 15 ;

[0066] Figure 19 schematic view of the fixing piece installed on the corner piece.

[0067] Reference signs:

[0068] 1, connecting strip one; 1-1, sealing part; 1-2, extension part; 1-3, locking part; 1-3-1, blind head; 1-3-2, closed end;

[0069] 2, connecting strip two; 2-4, connecting part; 3, pipeline; 3-1, pipe body; 3-2, sealing edge;

[0070] 4, corner piece; 4-1, locking section; 4-2, extension section; 4-3, sealing section; 4-4, clamping section;

[0071] 5, connecting body a; 6, connecting body b; 7, fixing piece. DETAILED DESCRIPTION

[0072] This part will describe the specific embodiments of the utility model in detail, the preferred embodiments of the utility model are shown in the drawings, the role of the drawings is to supplement the description of the text part with graphics, so that people can intuitively and visually understand each technical feature and the overall technical scheme of the utility model, but it cannot be understood as the limitation of the protection scope of the utility model.

[0073] The application scenarios of the light air duct and the aspects of contribution to the prior art will be described in detail below in combination with the drawings and embodiments.

[0074] A light air duct, comprising a pipeline 3 and a connecting piece, the connecting piece is used for connecting the pipeline 3;

[0075] As Figures 1-5 shown; the structure of the connecting piece is shown.

[0076] The connecting piece comprises a connecting body a 5 and a connecting body b 6; the connecting piece is a double-layer structure and is in the shape of an I-beam as a whole;

[0077] The connecting piece is a connecting strip,

[0078] The connecting strip is divided into a connecting strip one 1 and a connecting strip two 2;

[0079] The connecting strip one 1 and the connecting strip two 2 both comprise a sealing part 1-1, the sealing part 1-1 is in the shape of a C as a whole and has an opening, and each side has a sealing arm;

[0080] An extension part 1-2 is arranged on the side of the sealing part 1-1 away from the opening, and the other side of the extension part 1-2 is provided with a locking part 1-3;

[0081] The sealing part 1-1, the extension part 1-2 and the locking part 1-3 are all double-layer structures;

[0082] The extension section 4-2 is a double-layer structure formed by the outer layer extension of the sealing part 1-1;

[0083] The locking part 1-3 includes a blind head 1-3-1 and a closed end 1-3-2, with the blind head 1-3-1 and the closed end 1-3-2 located on both sides of the extension part 1-2;

[0084] The blind head 1-3-1 is O-shaped, which is a double-layer structure formed by the extension segment 4-2 folding back one layer;

[0085] The closed end 1-3-2 has a double U-shaped cross shape, which is a closed double-layer structure formed by the mutual locking of the free ends of the two layers of the extension section 4-2.

[0086] The difference between connecting strip 2 and connecting strip 1 is that connecting strip 2 has connecting parts 2-4 at both ends of the double-layer extension 1-2. The connecting parts 2-4 are L-shaped, and the two connecting parts 2-4 of the double-layer extension 1-2 are T-shaped when they are close together.

[0087] The double-layer structure of the connecting strip can be made by stamping and bending metal sheets.

[0088] The purpose of using a double-layer structure for the connecting strip is that...

[0089] While the inner layer of the sealing part 1-1 locks the pipe 3, the outer layer of the connector also serves to support and fix the flange.

[0090] Furthermore, due to the design of the extension 1-2 and the locking part 1-3, the outer layer has sufficient structural rigidity, and has structural stress rigidity in six directions: up, down, left, right, front, and back.

[0091] The connecting part 2-4 of the connecting strip 2 can be engaged with the sealing part 1-1 of the connecting strip 1.

[0092] like Figures 6-8 The structure of pipe 3 is shown in the figure;

[0093] The main body of pipe 3 is a single pipe body 3-1, which has a thin-walled structure. The cross-section of pipe 3 is rectangular.

[0094] Sealing edges are provided at both ends of each side of pipe 3; the sealing edge 3-2 is L-shaped and is located on the outside of pipe body 3-1;

[0095] The length of the sealing edge is the same as the side length of each rectangular face.

[0096] The sealing part 1-1 of the connecting strip engages with the sealing edge of the pipe 3 to form a sealed connection.

[0097] like Figures 11-14 As shown, this illustrates the combination of lightweight air ducts.

[0098] Place the two ends of pipe 3 opposite each other, and align the pipe bodies 3-1 of the two pipes 3.

[0099] Connector b6 connects to a set of parallel sealing edges of pipe 3, with the two opposite sealing edges inserted into the C-shaped structure of sealing part 1-1;

[0100] The length of the sealing part 1-1 of the connector b6 is the same as the length of the locked sealing edge.

[0101] The sealing part 1-1 of the connector b6 is engaged and locked with the sealing edge of the pipe 3 by manual hammering or pressing.

[0102] Connector b6 can be either connector 1 or connector 2.

[0103] Then use connector a5 to connect another set of parallel sealing edges.

[0104] The length of connector a5 is the sum of the length of the parallel sealing edges of the group and twice the height of connector b6.

[0105] L = l + h * 2;

[0106] L is the length of connector a5;

[0107] l is the length of a set of parallel sealing edges connected by connector a5;

[0108] h is the height of connector b6;

[0109] The height of the connector b6 is the distance from the outside of the opening end of the sealing part 1-1 to the top of the locking part 1-3.

[0110] Connector a5 uses connector strip 1;

[0111] Connector b6 uses either connector 1 or connector 2;

[0112] When connector b6 uses connector strip 2;

[0113] Connector a5 connects to another set of parallel sealing edges, passing through the connecting part 2-4 of connector strip 2 and the sealing edge of pipe 3 respectively, so that the connecting part 2-4 of connector strip 2 and the sealing edge of pipe 3 are located within the C-shaped structure of sealing part 1-1 of connector a5.

[0114] The sealing part 1-1 of connector a5 is pressed by hand hammering or a seaming machine. This connection method can connect pipe 3, connector a5, and connector b6 into one unit, which makes the structure more stable, stronger, and the anti-detachment performance of the insert better.

[0115] To further stabilize the connection, a fastener 7 is used to secure the sealed portion 1-1 of the tightened connector to the pipe body 3-1. The fastener 7 passes through the sealed portion 1-1 of the connector, the sealing edge of the pipe 3, and the pipe body 3-1.

[0116] The fixing member 7 can be in the form of a rivet. Holes can be drilled at the fixing positions and the rivets can be used for fixing.

[0117] The way of fixing with bolts after drilling holes can also be adopted.

[0118] In the figure, an example of arranging one fixing member 7 on each of the two sealing arms on both sides is given. One or more fixing members 7 can also be arranged on each side.

[0119] Such as Figures 9-10 shown, the structure of the corner fitting 4 is shown.

[0120] Such as Figures 15-18 shown, the air duct structure installed with the corner fitting 4 is shown.

[0121] In order to further increase the structural strength of the connecting body and the whole air duct, the corner fitting 4 is installed on the end face of the connecting body a5.

[0122] The whole corner fitting 4 is in the shape of a hollow shell with a single-side opening, and the whole presents as a cross shape or a shape similar to a cross.

[0123] The corner fitting 4 is successively provided with a locking section 4-1, an extension section 4-2, a sealing section 4-3 and a clamping section 4-4;

[0124] The locking section 4-1 is snapped into the locking part 1-3 of the connecting body a5;

[0125] The extension section 4-2 is snapped into the extension part 1-2 of the connecting body a5;

[0126] The sealing section 4-3 is snapped into the sealing part 1-1 of the connecting body a5;

[0127] The clamping section 4-4 is snapped into the locking part 1-3 of the connecting body b6, and the length of the clamping section 4-4 can be adjusted according to the installation needs;

[0128] The corner fitting 4 can also be pressed by manual hammering or a seaming machine.

[0129] In order to prevent the corner fitting 4 from falling off, after the corner fitting 4 is installed, the fixing member 7 is used to connect and fix the corner fitting 4 and the connecting body a5.

[0130] The fixing position of the fixing member 7 is set on the extension section 4-2, and the fixing member 7 passes through the corner fitting 4 and the connecting member.

[0131] The fixing member 7 can be in the form of a rivet. Holes can be drilled at the fixing positions and the rivets can be used for fixing.

[0132] The way of fixing with bolts after drilling holes can also be adopted.

[0133] Figure 9 、10 Two fastener types with opposite directions for locking section 4-1 are given because the thickness of the blind head 1-3-1 and the closed end 1-3-2 of the locking part 1-3 is inconsistent, so the structure of the fastener needs to be set accordingly.

[0134] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0135] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of this patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A lightweight air duct, characterized in that, It includes a pipe and a connector, and the connector is used to connect the pipes. The connector has a double-layer structure and is in an I-shape as a whole. The connector includes a sealing part, and the sealing part is in a C-shape as a whole.

2. The lightweight air duct according to claim 1, wherein: The main body of the pipe is a pipe body, the pipe body is a thin-walled structure, and the cross-section of the pipe is rectangular. Sealing edges are provided at both ends of each surface of the pipe; the sealing edges are in an L-shape and are located outside the pipe body. The length of the sealing edge is the same as the side length of each rectangular surface. The sealing part of the connector and the sealing edge of the pipe are engaged with each other for sealed connection.

3. The lightweight air duct according to claim 2, wherein: The connector includes a connecting body a and a connecting body b. The connecting body b connects a group of parallel sealing edges of the pipe, and two opposite sealing edges are inserted into the C-shaped structure of the sealing part. The length of the sealing part of the connecting body b is the same as the length of the locked sealing edge. The connecting body a connects the other group of parallel sealing edges. The length of the connecting body a is the sum of the length of the group of parallel sealing edges connected by the connecting body a and twice the height of the connecting body b.

4. The lightweight air duct according to claim 1, wherein The connector is a connecting strip. The connecting strip is divided into a connecting strip one and a connecting strip two. Both the connecting strip one and the connecting strip two include a sealing part, the sealing part is in a C-shape as a whole, has an opening, and has a sealing arm on each side. An extension part is provided on the side of the sealing part away from the opening, and a locking part is provided on the other side of the extension part.

5. The lightweight air duct according to claim 4, wherein The sealing part, the extension part and the locking part are all of double-layer structure. The extension section is a double-layer structure formed by the outer layer of the sealing part extending. The locking part includes a blind head and a closed end, and the blind head and the closed end are located on both sides of the extension part. The blind head is in an O-shape and is a double-layer structure formed by folding back one layer of the extension section. The closed end is in a double-U-shaped cross shape and is a closed double-layer structure formed by locking the free ends of two layers of the extension section.

6. The lightweight air duct according to claim 5, wherein The connecting strip two is provided with connecting parts at both ends of the double-layer extension part, the connecting parts are in an L-shape, and the two connecting parts of the double-layer extension part are placed together to form a T-shape.

7. The lightweight air duct according to claim 6, wherein The connecting body a uses the connecting strip one. The connecting body b uses the connecting strip one or the connecting strip two. When the connecting body b uses the connecting strip two; A group of parallel sealing edges connected by the connecting body a, the connecting part of the connecting strip two and the sealing edge of the pipe are located in the C-shaped structure of the sealing part of the connecting body a.

8. The lightweight air duct according to claim 7, wherein The sealing part of the connecting body is fixed to the pipe body using a fixing piece, and the fixing piece passes through the sealing part of the connector, the sealing edge of the pipe and the pipe body.

9. The lightweight air duct according to claim 3, wherein Corner pieces are provided on the end surface of the connecting body a. The corner piece is in a hollow shell shape with a single-sided opening as a whole, and is in a shape of 士 or 土 as a whole. The corner piece is sequentially provided with a locking section, an extension section, a sealing section and a clamping section. The locking section is snapped into the locking part of the connecting body a. The extension section is snapped into the extension part of the connecting body a. The sealing section is snapped into the sealing part of the connecting body a. The locking section engages with the locking part of the connector b, and the length of the locking section can be adjusted according to the installation requirements. The fastener connects and secures the corner piece to the connector a; The fixing position of the fastener is set in the extension section, and the fastener passes through the corner piece and the connector.

10. The lightweight air duct according to claim 8 or 9, characterized in that, The fasteners are made of rivets or bolts.

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