Shaftway lining air pipe connected through inner flanges

Abstract

The utility model discloses a hoistway lining air pipe connected with an inner flange and an inner flange, which belongs to the technical field of hoistway lining air pipes and comprises a first lining air pipe and a second lining air pipe, communicated ventilation cavities are formed in the first lining air pipe and the second lining air pipe, and the first lining air pipe and the second lining air pipe are communicated with each other. A top inner flange and a bottom inner flange are mounted at the top and the bottom of the ventilation cavity, and the first lining air pipe and the second lining air pipe are fixedly connected through the top inner flange and the bottom inner flange; the inner flange assembly is arranged, the top inner flange is matched with the bottom inner flange, the hexagon bolts are connected with the mounting holes in the top inner flange and the bottom inner flange in a screwed mode, and therefore the two shaft lining air pipes are connected, and the inner flanges are arranged in the shaft lining air pipes and are not limited by a shear wall. Installation of hexagon bolts is not affected, and the air leakage rate is guaranteed; and the flange external corner is folded inwards to form a flanging surface, so that the connection is tighter.

Description

Technical Field

[0001] The utility model belongs to the technical field of well lining air ducts, and in particular relates to a well lining air duct connected with an inner flange. Background Art

[0002] The shaft lining air duct is a metal or non-metallic pipe used in ventilation and air-conditioning engineering of industrial and civil buildings. The ventilation duct is a kind of municipal infrastructure for air circulation and reducing the concentration of harmful gases. The ventilation duct is divided into the following materials: generally: steel plate air duct (ordinary steel plate), galvanized plate (white iron) air duct, stainless steel ventilation duct, fiberglass ventilation duct, plastic ventilation duct, composite material ventilation duct, color steel sandwich insulation board ventilation duct, double-sided aluminum foil insulation ventilation duct, single-sided color steel insulation air duct, rubber-coated cloth ventilation duct (such as mining air duct), mining plastic ventilation duct, etc.; the existing vertical shaft lining air duct, most of the two air ducts are fixed and installed with an external flange, the cross-section is large, and the flange bolts on the shear wall side cannot be fully installed due to installation restrictions, resulting in increased air leakage rate, and the installation efficiency of the flange bolts of the confined space air duct is low. Utility Model Content

[0003] The utility model aims to provide a shaft lining air duct connected with an inner flange to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a shaft lining air duct connected by an inner flange, comprising a first lining air duct and a second lining air duct, wherein the first lining air duct and the second lining air duct are both formed with a connected ventilation cavity, and the top and bottom of the ventilation cavity are both installed with a top inner flange and a bottom inner flange, and the first lining air duct and the second lining air duct are fixedly connected by the top inner flange and the bottom inner flange.

[0005] Preferably, mounting holes are correspondingly formed on the top inner flange and the bottom inner flange, and the mounting holes are threaded holes.

[0006] Preferably, ventilation openings are provided at both ends of the ventilation cavity, and the top inner flange and the bottom inner flange are both installed at the ventilation openings.

[0007] Preferably, the top inner flange and the bottom inner flange both include flange outer corners, and the two flange outer corners are folded inwards to form a flanged surface.

[0008] Preferably, a gap is formed between the flange surface and the top inner flange and the bottom inner flange, and the gap is filled with glue.

[0009] Preferably, the top inner flange of the first lining air duct and the bottom inner flange of the second lining air duct are fixedly connected by hexagonal bolts, and the hexagonal bolts are screwed into the mounting holes.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] (1) The utility model connects two shaft lining air ducts by setting an inner flange assembly, which is matched with the top inner flange and the bottom inner flange, and is screwed into the mounting holes on the top inner flange and the bottom inner flange by means of hexagonal bolts. The inner flange is set inside the shaft lining air duct, is not restricted by the shear wall, does not affect the installation of the hexagonal bolts, and ensures the air leakage rate.

[0012] (2) In view of the above, the utility model folds the flange male angles of the top inner flange and the bottom inner flange inward to form a flanged surface, which is flush with the vent, ensuring that the two shaft lining air ducts are not restricted by the flange male angles and can be connected more tightly. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the utility model;

[0014] Figure 2 It is a top view of the utility model;

[0015] Figure 3 It is a schematic diagram of the connection between the first lining air duct and the second lining air duct of the utility model.

[0016] In the figure: 1-first inner lining air duct; 2-flange male angle; 21-flanged surface; 3-top inner flange; 31-mounting hole; 4-ventilation port; 5-second inner lining air duct; 6-bottom inner flange; 7-hexagonal bolt. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] See also Figure 1-Figure 3 As shown, the utility model provides the following technical solutions: a shaft lining air duct connected with inner flanges, comprising a first lining air duct 1 and a second lining air duct 5, wherein the first lining air duct 1 and the second lining air duct 5 are both formed with a connected ventilation cavity, the top and bottom of the ventilation cavity are both installed with a top inner flange 3 and a bottom inner flange 6, both ends of the ventilation cavity are provided with a ventilation port 4, the top inner flange 3 and the bottom inner flange 6 are both installed at the ventilation port 4, and the first lining air duct 1 and the second lining air duct 5 are fixedly connected through the top inner flange 3 and the bottom inner flange 6;

[0019] In view of the above, when installing the lined air duct in the shaft, the two lined air ducts will be connected in sequence. First, the top inner flange 3 of the first lined air duct 1 and the bottom inner flange 6 of the second lined air duct 5 will be placed correspondingly, and the top inner flange 3 and the bottom inner flange 6 are both located inside the first lined air duct 1 and the second lined air duct 5, without occupying the space of the shaft, making it convenient for operators to tighten them within the inner range, and the installation is convenient and quick.

[0020] In addition, if Figure 1 and Figure 2 As shown, in the utility model, the top inner flange 3 and the bottom inner flange 6 both include flange male corners 2, and the two flange male corners 2 are folded inward to form a flange surface 21, and the flange surface 21 is flush with the vent 4 to ensure the tightness of the connection between the first lining air duct 1 and the second lining air duct 5; a gap is formed between the flange surface 21 and the top inner flange 3 and the bottom inner flange 6, and the gap is filled with glue to reduce the air leakage rate at the connection between the first lining air duct 1 and the second lining air duct 5.

[0021] Specifically, Figure 1 and Figure 3 As shown, corresponding mounting holes 31 are opened on the top inner flange 3 and the bottom inner flange 6, and the mounting holes 31 are threaded holes; the top inner flange 3 of the first lining air duct 1 and the bottom inner flange 6 of the second lining air duct 5 are fixedly connected by hexagonal bolts 7, and the hexagonal bolts 7 are screwed into the mounting holes 31.

[0022] In view of the above, when installing the first lined air duct 1 and the second lined air duct 5, the operator stands on the top of the second lined air duct 5, and uses an external tool, such as an air conditioner outdoor unit disassembly wrench to screw the hexagonal bolt 7, and puts the nut on the wrench bayonet. The hexagonal bolt 7 is screwed into the mounting hole 31 on the bottom inner flange 6 of the second lined air duct 5 and the mounting hole 31 on the top inner flange 3 of the first lined air duct 1 in turn, until the first lined air duct 1 and the second lined air duct 5 are firmly installed in cooperation with the nut. Since the top inner flange 3 and the bottom inner flange 6 are located inside the first lined air duct 1 and the second lined air duct 5, they are not restricted by the shaft wall, and all the mounting holes 31 can be connected in turn, making the installation tighter and reducing the air leakage rate. Multiple lined air ducts can be connected according to the above steps to complete the installation of the lined air ducts in the shaft.

[0023] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A shaft lining air duct connected with an inner flange, characterized in that: The invention comprises a first lining air duct (1) and a second lining air duct (5), wherein the first lining air duct (1) and the second lining air duct (5) are both provided with a connected ventilation cavity, and the top and bottom of the ventilation cavity are both provided with a top inner flange (3) and a bottom inner flange (6), and the first lining air duct (1) and the second lining air duct (5) are fixedly connected via the top inner flange (3) and the bottom inner flange (6).

2. The shaft lining air duct with inner flange connection according to claim 1, characterized in that: The top inner flange (3) and the bottom inner flange (6) are both provided with corresponding mounting holes (31), and the mounting holes (31) are threaded holes.

3. The shaft lining air duct with inner flange connection according to claim 1, characterized in that: Both ends of the ventilation cavity are provided with ventilation openings (4), and the top inner flange (3) and the bottom inner flange (6) are both installed at the ventilation openings (4).

4. The shaft lining air duct with inner flange connection according to claim 1, characterized in that: The top inner flange (3) and the bottom inner flange (6) both include flange outer corners (2), and the two flange outer corners (2) are folded inwards to form a flanged surface (21).

5. The shaft lining air duct with inner flange connection according to claim 4, characterized in that: A gap is formed between the flange surface (21) and the top inner flange (3) and the bottom inner flange (6), and the gap is filled with glue.

6. The shaft lining air duct with inner flange connection according to claim 2, characterized in that: The top inner flange (3) of the first lining air duct (1) and the bottom inner flange (6) of the second lining air duct (5) are fixedly connected via hexagonal bolts (7), and the hexagonal bolts (7) are screwed into the mounting holes (31).

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