A double-layer spiral circular flange connection type air conditioning duct

Abstract

The utility model discloses a double-layer spiral circular flange connection type air-conditioning duct, comprising a flange, an outer air duct and an inner air duct, a filler is arranged between the outer air duct and the inner air duct, and the two flanges are connected by a fastener; the double-layer spiral circular flange connection type air-conditioning duct adopts a double-layer design, and corresponding fillers are added between the two layers of air ducts, so that when air circulates in the air duct, the damage transfer of energy is reduced, the heat preservation effect is stronger, the air duct and the flange can be disassembled by removing the fasteners and the latch, the overall installation is very convenient, and the later replacement and maintenance of the air duct are convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of air-conditioning ducts, in particular to a double-layer spiral circular flange-connected air-conditioning duct. Background Art

[0002] The air conditioning duct is a passage used by the air conditioner to utilize the cold and heat generated by the main unit to centrally process the return air (or a mixture of return air and fresh air) from the room, such as cooling, heating, humidifying, dehumidifying, purifying, etc., and then send it into the room. Since the air conditioning duct is a pipe used to centrally process the air, the air fluid will flow in the duct. For example, the prior art: CN215372884U, an air conditioning duct, including a connecting pipe and two conduits, the outer walls of both sides of the connecting pipe are respectively provided with bellows, and the ends of the two bellows are respectively connected to the ends of the two conduits by threads, a conducting pipe is provided at the end of the connecting pipe, and one end of the conducting pipe is connected to a square conducting interface through a branch pipe, and the ends of the branch pipe and the connecting pipe are respectively connected to columns through a clamping mechanism, and a particle collection mechanism is provided in the conducting pipe, the particle collection mechanism includes a tapered pipe, two wavy strips, two springs, a waste frame and a filter, and the tapered pipe is provided at one end of the conducting pipe, and the two wavy strips are connected to the two sides of the conducting pipe through a fixing plate.

[0003] There are other existing technologies:

[0004] CN204828987U, an air duct for air conditioning;

[0005] CN219120741U, an air duct for air conditioning.

[0006] The air ducts of the air conditioner mentioned in the above-mentioned prior art are mostly single-layer structures, and the heat preservation effect is poor during the air transmission process. In addition, since the air ducts are directly connected, disassembly and replacement are relatively stable. Utility Model Content

[0007] The utility model aims to provide a double-layer spiral circular flange connection type air duct for air conditioning, so as to solve the problems raised in the above-mentioned background technology.

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a double-layer spiral circular flange-connected air-conditioning duct, comprising a flange, an outer duct and an inner duct, characterized in that an outer slot is provided on the surface of the flange near the outer ring, an inner slot is provided on the surface of the flange near the inner ring, a through hole is provided in the center of the flange, and the two flanges are connected by a fastener.

[0009] Preferably, the outer layer air duct and the inner layer air duct are provided with insertion holes at the edge positions of one end, the insertion holes are plugged with plug pins, and the plug pins are installed through and between the inner layer slot and the outer layer slot.

[0010] Preferably, a guide groove is provided on the inner layer of the inner slot, and a chamfer is provided on the outer edge of the inner slot in the direction of the guide groove.

[0011] Preferably, a filler is provided between the outer layer air duct and the inner layer air duct.

[0012] Preferably, the guide groove and the latch are not in the same direction.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. The double-layer spiral circular flange connection type air conditioning duct adopts a double-layer design, and corresponding fillers are added between the two layers of the duct, so that when the air circulates in the duct, the energy damage transfer is reduced and the thermal insulation effect is stronger.

[0015] 2. The double-layer spiral circular flange connection type air conditioning duct has flanges fixed at both ends of the duct by latches, and the flanges are connected by fasteners. The duct and flange can be disassembled by removing the fasteners and latches. The overall installation is very convenient, which facilitates the replacement and maintenance of the duct in the later stage. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 This is a cross-sectional view of the structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the structural jack of the utility model;

[0019] Figure 4 This is a schematic diagram of the structural flange of the utility model.

[0020] In the figure: 1, flange; 2, outer air duct; 3, inner air duct; 4, filler; 101, outer slot; 102, inner slot; 103, guide groove; 104, latch; 105, fastener; 201, socket. DETAILED DESCRIPTION

[0021] 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.

[0022] Example: See Figure 1The utility model provides a technical solution: a double-layer spiral circular flange connection type air duct for air conditioning.

[0023] Among them, the outer air duct 2 and the inner air duct 3 are located on one side of the flange 1, an outer slot 101 is opened on the surface of the flange 1 near the outer circle, an inner slot 102 is opened on the surface of the flange 1 near the inner circle, a through hole is opened in the center of the flange 1, and the two flanges 1 are connected by a fastener 105.

[0024] In this embodiment, the inner diameter of the outer air duct 2 is larger than that of the inner air duct 3, and the two have the same length. The inner air duct 3 can be placed in the outer air duct 2, one end of the outer air duct 2 is inserted into the outer slot 101, and one end of the inner air duct 3 is inserted into the inner slot 102. The outer air duct 2 covers the inner air duct 3, and the two are not in contact and there is a certain gap between them. By fitting the connecting surfaces of the flange plates 1 on which the outer air duct 2 and the inner air duct 3 are installed, aligning the perforations on the edge of the flange plate 1, and locking them through the fastener 105, the two air ducts are connected and installed with each other, and the air in the air duct flows and passes through the through hole in the center of the flange plate 1.

[0025] Among them, a plug hole 201 is opened at the edge position of one end of the outer layer air duct 2 and the inner layer air duct 3, and a plug pin 104 is inserted into the plug hole 201. The plug pin 104 is installed between the inner layer slot 102 and the outer layer slot 101.

[0026] In this embodiment, the socket 201 is located at the edge of the inner air duct 3 and the outer air duct 2, and multiple holes of the same diameter are also provided on the flange 1. The groove walls of the outer slot 101 and the inner slot 102 are evenly distributed on the flange 1, and the number is the same as the number on a single inner air duct 3 and an outer air duct 2. The distance from the socket 201 on the air duct to the edge position is the same as the distance from the hole on the flange 1 to the groove wall. In this way, when the air duct is inserted into the slot, the two holes are aligned on the same hole center line, and the outer air duct 2 and the inner air duct 3 are fixed to the flange 1 by inserting the pin 104.

[0027] The inner layer of the inner slot 102 is provided with a guide groove 103 , and the outer edge of the inner slot 102 in the direction of the guide groove 103 is chamfered.

[0028] In this embodiment, the front end of the guide groove 103 is connected to the inner slot 102. When the inner air duct 3 is inserted and fixed, it fits the inner air duct 3. Multiple guide grooves 103 are evenly distributed. In order to prevent foreign matter from appearing in the inner air duct 3, when passing through the through hole of the flange 1, it is stuck in the connection between the flange 1 and the inner air duct 3. After movement, the debris falls into the guide groove 103 and is transported to the center position of the flange 1 through the slope, so as to be discharged and continue to be transported forward.

[0029] A filler 4 is provided between the outer air duct 2 and the inner air duct 3 .

[0030] In this embodiment, the filler 4 is filled after the two layers of air ducts are installed to prevent heat transfer between the inner layer air duct 3 and the outer layer air duct 2, thereby increasing the thermal insulation effect of the air duct.

[0031] The guide groove 103 and the latch pin 104 are not in the same direction.

[0032] In this embodiment, in order to prevent the inner air duct 3 from being deformed due to the stress-bearing area and the guide groove 103 being close to each other after the latch 104 is inserted into the inner slot 102, the two should be distributed far enough to avoid interference.

[0033] Working principle: align the outer air duct 2 and the inner air duct 3 with the installation surface of the flange 1, insert one end of the outer air duct 2 into the outer slot 101, insert one end of the inner air duct 3 into the inner slot 102, the outer air duct 2 covers the inner air duct 3, insert the pin 104 to fix the outer air duct 2 and the inner air duct 3 on the flange 1, the connecting surfaces of the two flanges 1 fit together, the perforations on the edge of the flange 1 are aligned, and locked through the fastener 105, so that the two air ducts are connected and installed with each other, and finally fill the filler 4 between the inner air duct 3 and the outer air duct 2 to improve the thermal insulation effect.

[0034] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" 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 a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] 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 double-layer spiral circular flange connection type air duct for air conditioning, comprising a flange plate (1), an outer air duct (2) and an inner air duct (3), characterized in that: An outer slot (101) is provided on the surface of the flange (1) near the outer ring, an inner slot (102) is provided on the surface of the flange (1) near the inner ring, a through hole is provided at the center of the flange (1), and the two flanges (1) are connected via a fastener (105).

2. A double-layer spiral circular flange connection type air conditioning duct according to claim 1, characterized in that: An insertion hole (201) is provided at the edge of one end of the outer layer air duct (2) and the inner layer air duct (3), a plug (104) is inserted into the insertion hole (201), and the plug (104) is installed between the inner layer slot (102) and the outer layer slot (101).

3. The double-layer spiral circular flange connection type air conditioning duct according to claim 1, characterized in that: The inner layer slot (102) is provided with a guide groove (103) on its inner layer, and the outer edge of the inner layer slot (102) in the direction of the guide groove (103) is provided with a chamfer.

4. The double-layer spiral circular flange connection type air conditioning duct according to claim 1, characterized in that: A filler (4) is provided between the outer layer air duct (2) and the inner layer air duct (3).

5. The double-layer spiral circular flange connection type air conditioning duct according to claim 3, characterized in that: The guide groove (103) and the latch pin (104) are not in the same direction.

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