CN216743298U - F-shaped flange for ventilating duct - Google Patents
F-shaped flange for ventilating duct Download PDFInfo
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- CN216743298U CN216743298U CN202123364770.9U CN202123364770U CN216743298U CN 216743298 U CN216743298 U CN 216743298U CN 202123364770 U CN202123364770 U CN 202123364770U CN 216743298 U CN216743298 U CN 216743298U
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Abstract
The utility model provides an F-shaped flange for a ventilating duct, which comprises a first flange plate and a second flange plate, wherein the first flange plate is fixedly connected with the second flange plate, the first flange plate is provided with a first inner limiting edge, a first outer limiting edge and a first fastening edge, the second flange plate is provided with a second inner limiting edge, a second outer limiting edge and a second fastening edge, the first inner limiting edge and the first outer limiting edge are connected through a first connecting edge, the second inner limiting edge and the second outer limiting edge are connected through a second connecting edge, the first inner limiting edge, the first outer limiting edge and the first connecting edge are connected to form an F-shaped structure, the second inner limiting edge, the second outer limiting edge and the second connecting edge are connected to form an F-shaped structure, the first connecting edge is provided with a first concave-convex part, and the second connecting edge is provided with a second concave-convex part, the convex surface of the first concave-convex part is matched with the concave surface of the second concave-convex part. The utility model has simple and practical structure, close matching and good smoke-proof effect.
Description
Technical Field
The utility model relates to the field of ventilation ducts, in particular to an F-shaped flange for a ventilation duct.
Background
Air pipe is metal or composite pipe for ventilation and air conditioning engineering that industry and civil buildings are said, be in order to make the circulation of air, reduce the municipal infrastructure of harmful gas concentration, along with application environment's difference, it is different to air pipe's wall thickness requirement, adopt the flange to connect between the air pipe at present, the structure of flange is generally flat or simple and easy F type, these structures have in the in-service use and drop easily, the cooperation is not inseparable, the smoke protection effect is not good scheduling problem, consequently, need a new scheme to solve above problem urgently.
Disclosure of Invention
The utility model aims to provide an F-shaped flange for a ventilating duct, which has the advantages of simple and practical structure, close matching and good smoke prevention effect.
In order to achieve the technical purpose and achieve the technical requirements, the utility model adopts the technical scheme that the F-shaped flange for the ventilating duct comprises a first flange plate and a second flange plate, the first flange plate is fixedly connected with the second flange plate, the first flange plate is provided with a first inner limiting edge, a first outer limiting edge and a first fastening edge, the second flange plate is provided with a second inner limiting edge, a second outer limiting edge and a second fastening edge, the first inner limiting edge and the first outer limiting edge are connected through a first connecting edge, the second inner limiting edge and the second outer limiting edge are connected through a second connecting edge, the first inner limiting edge, the first outer limiting edge and the first connecting edge are connected to form an F-shaped structure, the second inner limiting edge, the second outer limiting edge and the second connecting edge are connected to form an F-shaped structure, the first connecting edge is provided with a first concave-convex part, the second connecting edge is provided with a second concave-convex part, and the convex surface of the first concave-convex part is matched with the concave surface of the second concave-convex part.
Preferably, one end of the first inner limiting edge is obliquely arranged towards the inner wall of the ventilation pipeline.
Preferably, one end of the second inner limiting edge is obliquely arranged towards the inner wall of the ventilation pipeline.
Preferably, the outer edge of the first fastening edge is provided with a flanging.
Preferably, the outer edge of the second fastening edge is provided with a flange.
Preferably, the first outer limiting edge is of a U-shaped structure formed by symmetrically bending.
Preferably, the second outer limiting edge is of a U-shaped structure formed by symmetrically bending.
Preferably, a plurality of through holes are formed in the first inner limiting edge and the second inner limiting edge.
Preferably, a plurality of through holes are formed in the first outer limiting edge and the second outer limiting edge.
The utility model has the beneficial effects that: compared with the traditional structure:
1) the first concave-convex part and the second concave-convex part are matched to enable the connection to be tighter, the first concave-convex part and the second concave-convex part can block smoke, the smoke is prevented from overflowing, the F-shaped structure is matched with the pipe wall of the ventilation pipeline, and the fastening performance is better.
2) Preferably, the one end slope setting on spacing limit in first interior limit and the second offsets with the inner wall of air pipe, forms interference fit, promotes fastening effect.
3) Preferably, the flanging is assembled by a flanging process, so that the first fastening edge and the second fastening edge have better edge tightness.
4) Preferably, the first inner limiting edge and the second inner limiting edge are provided with through holes, and the first inner limiting edge and the second inner limiting edge are connected with the pipe wall through screws, so that the fastening effect is improved.
5) Preferably, the first outer limiting edge and the second outer limiting edge are provided with through holes, and the first inner limiting edge and the second inner limiting edge are connected with the pipe wall through screws, so that the fastening effect is improved.
Drawings
FIG. 1 is a structural view of example 1;
FIG. 2 is a bottom view of FIG. 1;
FIG. 3 is a top view of FIG. 1;
FIG. 4 is a structural view of embodiment 2;
FIG. 5 is an assembly view of embodiment 1;
in fig. 1-5, 1, a first flange plate; 101. a first inner limiting edge; 102. a first outer limiting edge; 103. a first connecting edge; 104. a first fastening edge; 105. a first concave-convex portion; 2. a second flange plate; 201. a second inner limiting edge; 202. a second outer limit edge; 203. a second connecting edge; 204. a second fastening edge; 205. a second concave-convex portion; 3. a ventilation duct.
Detailed Description
The utility model is further described below with reference to the accompanying drawings;
referring to fig. 1-5, an F-flange for a ventilation duct, the F-flange including a first flange plate 1 and a second flange plate 2, the first flange plate 1 being fastened to the second flange plate 2, the first flange plate 1 having a first inner limiting edge 101, a first outer limiting edge 102 and a first fastening edge 104, the second flange plate 2 having a second inner limiting edge 201, a second outer limiting edge 202 and a second fastening edge 204, the first inner limiting edge 101 and the first outer limiting edge 102 being connected by a first connecting edge 103, the second inner limiting edge 201 and the second outer limiting edge 202 being connected by a second connecting edge 203, the first inner limiting edge 101, the first outer limiting edge 102 and the first connecting edge 103 being connected to form an F-shaped structure, the second inner limiting edge 201, the second outer limiting edge 202 and the second connecting edge 203 being connected to form an F-shaped structure, the first connecting edge 103 having a first concave-convex portion 105, the second connecting edge 203 is provided with a second concave-convex portion 205, and the convex surface of the first concave-convex portion 105 is matched with the concave surface of the second concave-convex portion 205; the first inner limiting edge 101 and the second inner limiting edge 201 are abutted against the inner wall of the ventilation duct 3, the first outer limiting edge 102 and the second outer limiting edge 202 are abutted against the outer wall of the ventilation duct 3, so that the first inner limiting edge 101 and the first outer limiting edge 102 clamp the duct wall, the second inner limiting edge 201 and the second outer limiting edge 202 can be installed in a fit mode such as interference fit and welding during assembly, when 2 ventilation ducts 3 are connected, a protruding part is arranged on the end surface of 1 ventilation duct 3 and is matched with the concave surface of the first concave-convex part 105, a groove is arranged on the end surface of the other ventilation duct 3 and is matched with the convex surface of the second concave-convex part 205, screws are arranged on the first fastening edge 104 and the second fastening edge 204 and are screwed for fixing, so that the first flange plate 1 and the second flange plate 2 can be tightly connected, the tightness is better, the fastening effect is better, and the first concave-convex part 105 and the second concave-convex part 205 can block smoke, the smoke is prevented from escaping; during assembly, a plurality of 4 first flange plates 1 and 4 second flange plates 2 are spliced into a square shape, and the joints of the adjacent 2 flange plates are matched by adopting a 45-degree chamfer angle; the wall thickness of the ventilation duct 3 is 20-100mm, and the axial distance between the first inner limiting edge 101 and the first outer limiting edge 102 and the axial distance between the second inner limiting edge 201 and the second outer limiting edge 202 are adjusted according to the wall thickness.
As shown in fig. 1 to 5, one end of the first inner limiting edge 101 is disposed to be inclined toward the inner wall of the ventilation duct 3, so that one end of the first inner limiting edge 101 is more closely matched with the inner wall of the ventilation duct 3.
As shown in fig. 1 to 5, one end of the second inner limiting edge 201 is disposed to be inclined toward the inner wall of the ventilation duct 3, so that one end of the second inner limiting edge 201 is more closely matched with the inner wall of the ventilation duct 3.
As shown in fig. 1 to 5, the outer edge of the first fastening edge 104 is provided with a flange, the outer edge of the second fastening edge 204 is provided with a flange, and during assembly, the flange is subjected to a flange pressing process, so that the first fastening edge 104 and the second fastening edge 204 are more tightly matched, and the tightness is improved.
As shown in fig. 1 to 5, the first outer limiting edge 102 is a U-shaped structure formed by symmetrically bending, the second outer limiting edge 202 is a U-shaped structure formed by symmetrically bending, the U-shaped structure is a transition section, and the first outer limiting edge 102 and the second outer limiting edge 202 can be made to be more attached to the outer wall of the ventilation duct 3 by edge pressing during assembly.
As shown in fig. 1 to 5, a plurality of through holes are provided on the first inner limiting edge 101 and the second inner limiting edge 201, in order to improve the fastening performance, the through holes are provided on the first inner limiting edge 101 and the second inner limiting edge 201, and the first inner limiting edge 101 and the second inner limiting edge 201 are fastened and connected with the pipe wall by screws.
As shown in fig. 1 to 5, a plurality of through holes are provided on the first outer limiting edge 102 and the second outer limiting edge 202, and in order to improve the fastening performance, the through holes are provided on the first outer limiting edge 102 and the second outer limiting edge 202, and the first outer limiting edge 102 and the second outer limiting edge 202 are fastened and connected to the tube wall by screws.
As shown in fig. 1-5, the bent portions of the first flange plate 1 and the second flange plate 2 are provided with chamfers, which are not shown in the drawings.
Example 1
An F-shaped flange for a ventilation pipeline comprises a first flange plate 1 and a second flange plate 2, wherein the first flange plate 1 is fixedly connected with the second flange plate 2, a first inner limiting edge 101, a first outer limiting edge 102 and a first fastening edge 104 are arranged on the first flange plate 1, a second inner limiting edge 201, a second outer limiting edge 202 and a second fastening edge 204 are arranged on the second flange plate 2, the first inner limiting edge 101 and the first outer limiting edge 102 are connected through a first connecting edge 103, the second inner limiting edge 201 and the second outer limiting edge 202 are connected through a second connecting edge 203, the first inner limiting edge 101, the first outer limiting edge 102 and the first connecting edge 103 are connected to form an F-shaped structure, the second inner limiting edge 201, the second outer limiting edge 202 and the second connecting edge 203 are connected to form an F-shaped structure, a first concave-convex part 105 is arranged on the first connecting edge 103, the second connecting edge 203 is provided with a second concave-convex portion 205, a convex surface of the first concave-convex portion 105 is matched with a concave surface of the second concave-convex portion 205, one end of the first inner limiting edge 101 and one end of the second inner limiting edge 201 are arranged in an inclined manner towards the inner wall of the ventilation duct 3, flanges are arranged on the outer edge of the first fastening edge 104 and the outer edge of the second fastening edge 204, and the first outer limiting edge 102 and the second outer limiting edge 202 are of a U-shaped structure formed by symmetrically bending.
Example 2
An F-shaped flange for a ventilating duct, the F-shaped flange comprises a first flange plate 1 and a second flange plate 2, the first flange plate 1 is fixedly connected with the second flange plate 2, the first flange plate 1 is provided with a first inner limiting edge 101, a first outer limiting edge 102 and a first fastening edge 104, the second flange plate 2 is provided with a second inner limiting edge 201, a second outer limiting edge 202 and a second fastening edge 204, the first inner limiting edge 101 and the first outer limiting edge 102 are connected through a first connecting edge 103, the second inner limiting edge 201 and the second outer limiting edge 202 are connected through a second connecting edge 203, the first inner limiting edge 101, the first outer limiting edge 102 and the first connecting edge 103 are connected to form an F-shaped structure, the second inner limiting edge 201, the second outer limiting edge 202 and the second connecting edge 203 are connected to form an F-shaped structure, the first connecting edge 103 is provided with a first concave-convex part 105, the second connecting edge 203 is provided with a second concave-convex portion 205, a convex surface of the first concave-convex portion 105 is matched with a concave surface of the second concave-convex portion 205, one end of the first inner limiting edge 101 and one end of the second inner limiting edge 201 are obliquely arranged towards the inner wall of the ventilation duct 3, the outer edge of the first fastening edge 104 and the outer edge of the second fastening edge 204 are provided with flanges, the first outer limiting edge 102 and the second outer limiting edge 202 are of U-shaped structures formed by symmetrically bending, the first inner limiting edge 101 and the second inner limiting edge 201 are provided with a plurality of through holes, and the first outer limiting edge 102 and the second outer limiting edge 202 are provided with a plurality of through holes.
The foregoing examples are given solely for the purpose of illustrating the utility model and are not to be construed as limiting the embodiments, and other variations and modifications in form thereof will be suggested to those skilled in the art upon reading the foregoing description, and it is not necessary or necessary to exhaustively enumerate all embodiments and all such obvious variations and modifications are deemed to be within the scope of the utility model.
Claims (9)
1. The utility model provides a F type flange for air pipe which characterized in that: the F-shaped flange comprises a first flange plate (1) and a second flange plate (2), wherein the first flange plate (1) is fixedly connected with the second flange plate (2), a first inner limiting edge (101), a first outer limiting edge (102) and a first fastening edge (104) are arranged on the first flange plate (1), a second inner limiting edge (201), a second outer limiting edge (202) and a second fastening edge (204) are arranged on the second flange plate (2), the first inner limiting edge and the first outer limiting edge (102) are connected through a first connecting edge (103), the second inner limiting edge (201) and the second outer limiting edge (202) are connected through a second connecting edge (203), the first inner limiting edge (101), the first outer limiting edge (102) and the first connecting edge (103) are connected to form an F-shaped structure, and the second inner limiting edge (201), the second outer limiting edge (202) and the second connecting edge (203) are connected to form an F-shaped structure, the first connecting edge (103) is provided with a first concave-convex part (105), the second connecting edge (203) is provided with a second concave-convex part (205), and the convex surface of the first concave-convex part (105) is matched with the concave surface of the second concave-convex part (205).
2. An F-flange for ventilation ducts according to claim 1, characterized in that: one end of the first inner limiting edge (101) is obliquely arranged towards the inner wall of the ventilating duct (3).
3. An F-flange for ventilation ducts according to claim 1, characterized in that: one end of the second inner limiting edge (201) is obliquely arranged towards the inner wall of the ventilation pipeline (3).
4. An F-flange for ventilation ducts according to claim 1, characterized in that: the outer edge of the first fastening edge (104) is provided with a flanging.
5. An F-flange for ventilation ducts according to claim 1, characterized in that: the outer edge of the second fastening edge (204) is provided with a flanging.
6. An F-flange for ventilation ducts according to claim 1, characterized in that: the first outer limiting edge (102) is of a U-shaped structure formed by symmetrically bending.
7. An F-flange for ventilation ducts according to claim 1, characterized in that: the second outer limiting edge (202) is of a U-shaped structure formed by symmetrically bending.
8. An F-flange for ventilation ducts according to claim 1, characterized in that: and a plurality of through holes are arranged on the first inner limiting edge (101) and the second inner limiting edge (201).
9. An F-flange for ventilation ducts according to claim 1, characterized in that: the first outer limiting edge (102) and the second outer limiting edge (202) are provided with a plurality of through holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123364770.9U CN216743298U (en) | 2021-12-29 | 2021-12-29 | F-shaped flange for ventilating duct |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123364770.9U CN216743298U (en) | 2021-12-29 | 2021-12-29 | F-shaped flange for ventilating duct |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216743298U true CN216743298U (en) | 2022-06-14 |
Family
ID=81938295
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123364770.9U Active CN216743298U (en) | 2021-12-29 | 2021-12-29 | F-shaped flange for ventilating duct |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216743298U (en) |
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2021
- 2021-12-29 CN CN202123364770.9U patent/CN216743298U/en active Active
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