WO2020093571A1

WO2020093571A1 - Connecting pipe structure and air conditioner indoor unit having same

Info

Publication number: WO2020093571A1
Application number: PCT/CN2018/125034
Authority: WO
Inventors: 贾飞飞; 金海元; 王朝新; 曾庆和; 赖孝成; 李德清; 李军; 陈圣文; 林裕亮; 傅凯凯; 陈红光; 曾俊杰
Original assignee: 珠海格力电器股份有限公司
Priority date: 2018-11-07
Filing date: 2018-12-28
Publication date: 2020-05-14
Also published as: CN111156672B; CN111156672A

Abstract

A connecting pipe structure and an air conditioner indoor unit having same. The connecting pipe structure comprises: a first pipe body (10), a lumen of the first pipe body (10) being a first gas channel, and a second pipe body (20), said second pipe body (20) being sleeved at an outer side of the first pipe body (10), and a gap between the second pipe body (20) and the first pipe body (10) forming a second gas channel; at least a part of the first pipe body (10) and at least a part of the second pipe body (20) may be arranged in a bent manner so as to adjust the position of the connecting pipe structure by means of bending the first pipe body (10) and the second pipe body (20).

Description

Takeover structure and air conditioner indoor unit with it

Technical field

The present invention relates to the field of air conditioners, and in particular, to a takeover structure and an air conditioner indoor unit having the same.

Background technique

In recent years, due to rapid economic development and accelerated urbanization, air pollution has become increasingly serious. In most cities in China, there have been years of haze. The increase in PM2.5 concentration directly leads to the frequent occurrence of haze weather and the substantial increase of toxic and harmful substances in the fog, which has seriously threatened human health. Under such circumstances, the cooling and heating of conventional household comfort air conditioners can no longer meet the demand, and health, comfort and environmental protection have become the goals of the development of modern air conditioners.

It can be seen that the air conditioner with fresh air function is particularly important. The air conditioner with the fresh air function needs to be connected to the outdoor, and the takeover structure of the ordinary air conditioner is no longer suitable for the air conditioner with the new air function. The fresh air function air conditioner needs to be connected to the outdoor, which requires reliable connection and simple installation.

At present, the installation methods of new air ducts and exhaust ducts on the market are divided into the following two types:

The first type: the new air pipe and the exhaust pipe are punched separately in the after-sales installation, and the air-conditioning air duct, drain pipe, internal and external machine connection line are separately punched, and 3 holes are required in the customer's home. Affect the beauty of the house and the strength of the wall.

The second type: the intake of fresh air and the exhaust air of the new fan pass through a wall hole together. Only one wall hole needs to be punched, and the cost of punching is low, but the nozzle cannot be bent and cannot meet the use of vertical cabinet air conditioners. In vertical cabinet installation, the air inlet components cannot be installed in parallel against the wall, and need to be at an angle to the wall, and the air conditioner needs to be moved during the after-sales installation, so it is required to take over and have the bending ability.

Therefore, the structure of the two new wind turbines on the market is relatively complicated, and the takeover structure cannot be bent, so neither can meet the requirements.

Summary of the invention

The main object of the present invention is to provide a take-over structure and an air-conditioning indoor unit having the same, so as to solve the problem that the structure of the fresh-air take-over structure in the prior art is relatively complicated.

In order to achieve the above object, according to an aspect of the present invention, a takeover structure is provided. The takeover structure includes: a first tube body, a lumen of the first tube body is a first gas channel; a second tube body, a second tube The body is sleeved on the outside of the first tube body, and the gap between the second tube body and the first tube body forms a second gas channel; wherein, at least part of the first tube body and at least part of the second tube body can be bent It is folded to adjust the position of the takeover structure by bending the first pipe body and the second pipe body.

Further, the first tube body is a telescopic hose, and the second tube body is a plastic bellows or telescopic hose.

Further, the takeover structure is used to connect with the main body of the air conditioner indoor unit, so that the main body of the air conditioner indoor unit communicates with the outdoor through the takeover structure, and the takeover structure further includes: an indoor joint part, the indoor joint part is provided on the first pipe body and The second tube body is close to the main body side of the air-conditioning indoor unit, so that the first tube body and the second tube body are connected to the main body of the air-conditioning indoor unit through the indoor joint member.

Further, the indoor joint component includes a first connection portion and a second connection portion located outside the first connection portion, the first connection portion is sleeved on the outside of the first tube body and communicates with the first gas channel, and the second tube body sleeve It is provided outside the second connection portion, and the gap between the second connection portion and the first connection portion communicates with the second gas passage.

Further, the takeover structure further includes: a first sealing ring, the first sealing ring is disposed in the first connecting portion and sandwiched between the end surface of the first tube body and the inner wall surface of the first connecting portion.

Further, the cavity of the first connecting portion is a stepped hole, and the first seal ring is limited at the stepped surface of the stepped hole.

Further, the main body of the air-conditioning indoor unit has a takeover connection portion, and the takeover structure further includes a third connection portion, the third connection portion is connected to the second connection portion, and the third connection portion is used to connect to the takeover connection portion.

Further, the take-over connection portion is provided with a clamping groove portion, and the third connection portion is provided with a snap member that cooperates with the clamping groove portion, so that the third connection portion and the take-over connection portion are clamped by the snap member and the groove portion Removably connected.

Further, the takeover structure further includes: a clamping member, the clamping member is disposed in the cavity of the third connection portion, and the clamping member is interposed between the third connection portion and the takeover connection portion.

Further, the takeover structure further includes: a support assembly, the support assembly is disposed in the second gas channel and connected to both the first pipe body and the second pipe body to support the first pipe body and the second pipe body.

Further, the support assembly includes a plurality of support rings, the support rings are sleeved on the first tube body, and the plurality of support rings are spaced apart along the extending direction of the second gas channel.

Further, the support ring is formed by splicing a plurality of support parts that are sequentially arranged around the first tube body, and the two adjacent support parts are snapped together.

Further, the support ring includes a main ring body and a positioning portion provided on the main ring body, the positioning portion is in contact with the inner wall surface of the second tube body, and the positioning portion is provided with a gas escape hole for gas to pass through. The two gas channels are connected.

Further, the take-over structure further includes: a first wind box, the first wind box has a wind box accommodating cavity and an installation opening communicating with the wind box accommodating cavity, a protective cover is provided on the mounting opening; a second air box, the second The wind box is installed in the wind box accommodating cavity, and a ventilation chamber is provided in the second wind box. The ventilation chamber is used to communicate with the first gas channel, and the gap between the first wind box and the second wind box is used to communicate with the second gas. The channel is connected.

Further, the first wind box includes a first ventilation part for docking with the second tube body, the second wind box has a second ventilation part for docking with the first tube body, and the second ventilation part penetrates the first Inside the ventilation section; a second sealing ring is interposed between the first ventilation section and the second tube body, and a third sealing ring is interposed between the second ventilation section and the first tube body.

Further, the takeover structure further includes: an insulation sleeve, which is sleeved on the outside of the second tube body.

Further, the takeover structure is used to connect with the fresh air device of the main body of the air-conditioning indoor unit, the first gas channel is a dirty air channel, and the second gas channel is a fresh air channel.

According to another aspect of the present invention, there is provided an air conditioner indoor unit, which includes a takeover structure, and the takeover structure is the above-mentioned takeover structure.

The connecting pipe structure of the present invention includes a first pipe body and a second pipe body. The lumen of the first pipe body is a first gas channel, the second pipe body is sleeved on the outside of the first pipe body, and the second pipe body and the second pipe body A gap between a tube body forms a second gas passage, and at least a portion of the first tube body and at least a portion of the second tube body can be arranged to be bent to bend the first tube body and the second tube body The position of the takeover structure is adjusted, thereby solving the problem that the structure of the fresh air takeover structure in the prior art is relatively complicated.

BRIEF DESCRIPTION

The accompanying drawings forming part of this application are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation on the present invention. In the drawings:

1 shows a partial structural schematic diagram of an embodiment of a takeover structure according to the present invention;

FIG. 2 shows an assembly view of a partial structure of the embodiment of the takeover structure in FIG. 1;

3 shows a cross-sectional view of an embodiment of the take-over structure in FIG. 2;

4 shows a schematic diagram of the assembly of the first wind box and the second wind box according to the embodiment of the takeover structure of the present invention;

FIG. 5 shows an exploded view of the first wind box and the second wind box of the takeover structure in FIG. 4;

FIG. 6 shows a schematic view of the structure of the present invention where the receiving structure is installed on the wall;

7 shows a cross-sectional view of the combined structure of the take-over structure and the wall in FIG. 6;

FIG. 8 shows a schematic structural diagram of an embodiment of an air-conditioning indoor unit of the present invention;

9 shows a side view of an embodiment of the air-conditioning indoor unit of the present invention;

10 shows a top view of an embodiment of the air-conditioning indoor unit of the present invention;

11 shows a schematic structural view of the indoor joint part of the takeover structure in FIG. 1;

FIG. 12 shows a schematic structural view of the support ring of the takeover structure in FIG. 1.

Among them, the above drawings include the following reference signs:

10. The first pipe body; 20. The second pipe body; 30. The indoor joint part; 31. The first connection part; 32. The second connection part; 33. The third connection part; 331. The snap part; 40. The part A sealing ring; 50, clamping member; 60, support assembly; 61, support ring; 611, support part; 612, main ring body; 613, positioning part; 614, gas escape hole; 70, first air box; 71 , Wind box accommodating cavity; 72, installation opening; 73, protective cover; 74, first ventilation part; 80, second wind box; 81, second ventilation part; 91, second seal ring; 92, third seal Circle; 93, thermal insulation casing; 100, main body; 120, fresh air device; 130, wall body.

detailed description

It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other if there is no conflict. The present invention will be described in detail below with reference to the drawings and in conjunction with the embodiments.

The present invention provides a takeover structure, please refer to FIGS. 1 to 11, the takeover structure includes: a first tube body 10, the lumen of the first tube body 10 is a first gas channel; a second tube body 20, a second The tube body 20 is sleeved on the outside of the first tube body 10, and the gap between the second tube body 20 and the first tube body 10 forms a second gas passage; wherein, at least part of the first tube body 10 and the second tube body At least part of the 20 can be bent to adjust the position of the connecting structure by bending the first pipe body 10 and the second pipe body 20.

The connecting structure in the present invention includes a first tube body 10 and a second tube body 20. The lumen of the first tube body 10 is a first gas channel, and the second tube body 20 is sleeved on the outer side of the first tube body 10. The gap between the two tube bodies 20 and the first tube body 10 forms a second gas passage, and at least part of the first tube body 10 and at least part of the second tube body 20 can be bent to be bent The first pipe body 10 and the second pipe body 20 adjust the position of the takeover structure, thereby solving the problem that the structure of the fresh air takeover structure in the prior art is relatively complicated.

Preferably, the first tube body 10 is a telescopic hose, and the second tube body 20 is a plastic bellows or telescopic hose. According to actual conditions, other forms of the first tube body 10 and the second tube body 20 may be selected.

Specifically, the second pipe body 20 (new air pipe) is a circular blow molded pipe, and a material with bending performance such as EVA, modified PP, modified PE, PVC, PA can be used. The circumference of the circular blow molded pipe has a threaded texture, which increases the bending capacity and bending strength of the hose, thereby avoiding the flattening of the hose due to external forces.

In this embodiment, as shown in FIGS. 8 to 10, the takeover structure is used to connect with the main body 100 of the air-conditioning indoor unit, so that the main body 100 of the air-conditioning indoor unit communicates with the outdoor through the takeover structure, and the takeover structure further includes: The indoor joint member 30, the indoor joint member 30 is provided on the side of the main body 100 of the first air conditioner 10 and the second tube body 20 close to the air conditioner indoor unit, so that the first tube body 10 and the second tube body 20 pass through the indoor joint member 30 is connected to the main body 100 of the air-conditioning indoor unit. By providing the indoor joint part 30, the detachable connection between the takeover structure and the main body 100 can be realized relatively conveniently.

In order to realize the connection between the indoor joint member 30 and the first tube body 10 and the second tube body, as shown in FIG. 11, the indoor joint member 30 includes a first connection portion 31 and a second connection located outside the first connection portion 31 Portion 32, the first connecting portion 31 is sleeved on the outside of the first tube body 10 and communicates with the first gas passage, the second tube body 20 is sleeved on the outside of the second connection portion 32, the second connection portion 32 is connected to the first The gap between the connection portions 31 communicates with the second gas passage.

In this embodiment, as shown in FIG. 1, the take-over structure further includes: a first sealing ring 40 disposed in the first connecting portion 31 and sandwiched between the end surface of the first tube body 10 and the first Between the inner wall surfaces of the connection portion 31. By providing the first sealing ring 40 and sandwiching the first sealing ring 40 between the first tube body 10 and the first connecting portion 31, the first tube body 10 and the first connecting portion 31 can be easily realized Between the seals.

Preferably, the cavity of the first connecting portion 31 is a stepped hole, and the first sealing ring 40 is limited at the stepped surface of the stepped hole. By making the cavity of the first connecting portion 31 a stepped hole, the first sealing ring 40 can be sealed more conveniently.

In this embodiment, the main body 100 of the air-conditioning indoor unit has a takeover connection portion, and the takeover structure further includes a third connection portion 33, the third connection portion 33 is connected to the second connection portion 32, and the third connection portion 33 is used to take over The connection is connected.

Specifically, the take-over connection portion is provided with a locking groove portion, and the third connecting portion 33 is provided with a locking member 331 which cooperates with the locking groove portion, so that the third connecting portion 33 is engaged with the locking groove portion by the locking member 331 Removably connected with the connecting portion of the take-over.

As shown in FIG. 1, the takeover structure further includes: a clamping member 50 that is disposed in the cavity of the third connection portion 33, and the clamping member 50 is interposed between the third connection portion 33 and the nozzle connection portion.

In order to support the first tube body 10 and the second tube body 20, as shown in FIG. 1, the takeover structure further includes: a support assembly 60, which is disposed in the second gas channel and is in contact with the first tube body 10 and The second tube bodies 20 are connected to support the first tube body 10 and the second tube body 20.

The specific form of the support assembly 60 in this embodiment is that, as shown in FIG. 1, the support assembly 60 includes a plurality of support rings 61, the support rings 61 are sleeved on the first pipe body 10, and the plurality of support rings 61 are along the second The extending directions of the gas channels are arranged at intervals.

In this embodiment, the support ring 61 is formed by splicing a plurality of support parts 611 that are sequentially arranged around the first tube body 10, and two adjacent support parts 611 are snap-fitted. Preferably, one supporting portion 611 is provided with a bayonet, and the other supporting portion 611 adjacent thereto is provided with a buckle matched with the bayonet, so as to realize the snap connection of the two.

In order to achieve the communication of the second gas passage, as shown in FIG. 12, the support ring 61 includes a main ring body 612 and a positioning portion 613 provided on the main ring body 612, the positioning portion 613 is in contact with the inner wall surface of the second tube body 20, The positioning portion 613 is provided with a gas escape hole 614 through which gas passes, and the gas escape hole 614 communicates with the second gas passage.

In order to facilitate air exchange with the outdoor, as shown in FIGS. 4 and 5, the takeover structure further includes: a first air box 70, the first air box 70 has an air box accommodating cavity 71 and an installation opening communicating with the air box accommodating cavity 71 72, a protective cover 73 is provided on the upper opening 72; the second air box 80 is installed in the air box accommodating cavity 71, and the second air box 80 is provided with a ventilating cavity. The first gas passage communicates, and the gap between the first wind box 70 and the second wind box 80 is used to communicate with the second gas passage.

Specifically, as shown in FIG. 5, the first wind box 70 includes a first vent 74 for docking with the second tube body 20, and the second wind box 80 has a second vent for docking with the first tube body 10 Part 81, the second ventilation part 81 is penetrated in the first ventilation part 74; a second sealing ring 91 is interposed between the first ventilation part 74 and the second tube body 20, the second ventilation part 81 and the first tube body A third seal ring 92 is interposed between 10.

In order to insulate the first tube body 10 and the second tube body 20, as shown in FIGS. 1 and 2, the takeover structure further includes: a heat insulation sleeve 93 which is sleeved on the outside of the second pipe body 20.

The specific application mode of the takeover structure of this embodiment is that the takeover structure is used to connect with the fresh air device 120 of the main body 100 of the air-conditioning indoor unit, the first gas channel is a dirty air channel, and the second gas channel is a fresh air channel.

The invention also provides an air conditioner indoor unit, which includes a takeover structure, and the takeover structure is the above-mentioned takeover structure.

The design of the takeover structure of the present invention solves the problem of a large number of after-sales installation punching and no bending of the takeover by designing the first tube body and the second tube body as a sleeve structure.

The invention designs a one-hole two-pipe wind pipe assembly to transmit fresh air and dirty wind, the big pipe is a new wind pipe, and the small pipe is an exhaust pipe to separate the fresh wind and the dirty wind, a casing structure is designed, and the big pipe adopts Bellows are blown and the flexible tube is used for the small tube. A thermal insulation full-heat fresh air conditioner takeover method is also designed, and the fresh air pipe is wrapped with an insulation sleeve. In addition, the present invention designs a method of taking over a full-heat fresh air conditioner with secondary heat exchange.

The casing take-over assembly connects the indoor air conditioner with the outdoor rain cover assembly, and plays a role in conveying the incoming fresh air and the discharged exhaust air.

The casing takeover assembly is composed of an insulation casing, a fresh air pipe, an exhaust pipe, an indoor joint (indoor joint part 30), a foam joint (clamping part 50), several support frames, and an exhaust pipe sealing rubber ring. The exhaust pipe (the first pipe body 10) is a retractable spiral hose, with spiral steel wire as the skeleton, and a layer of PVC and other toughness, good fluidity material, which can be extended or shortened according to the demand. The exhaust pipe at the indoor end is connected with a thread through an indoor joint. In order to prevent leakage of exhaust air, an exhaust pipe sealing rubber ring is added to the bottom of the indoor joint before the thread connection. Finally, the exhaust pipe and the indoor joint are sealed and fixed with glue to prevent the exhaust pipe from rotating. The outer ring of the indoor joint fixes the fresh air pipe (second pipe body 20) with glue to prevent fresh air from leaking out.

The insulation sleeve is wrapped on the surface of the circular blow molded tube and has two functions:

1. Protect the fresh air pipe (round blow molding pipe), beautiful and elegant, and increase the grade of full-heat fresh air conditioner. The new air pipe needs to pass through the wall hole, which is easy to wear, and the addition of the insulation sleeve will not damage the new air pipe;

2. Insulation effect: In the cold winter, the cold fresh air is introduced from the outside. The indoor temperature is high. If the insulation sleeve is not wrapped, the outer surface of the fresh air pipe exposed at the indoor end will produce condensed water and drip to the floor of the customer's home. Above, the new air pipe wrapped with the insulation sleeve will not produce condensate.

The fresh air pipe and the exhaust pipe are supported by a support ring 61 to center the exhaust pipe. The two support parts 611 are fixed to the exhaust pipe by snap-fitting, and the fixed support part cannot swing back and forth on the exhaust pipe. The number of support rings is determined by the length of the fresh air duct.

The outer end of the casing structure takes over the assembly and is connected to the rain cover assembly through a threaded connection. The rain cover assembly is composed of a rain cover, an outdoor air box (second air box), a fresh air box (first air box), a new air pipe sealing rubber ring, and an exhaust pipe sealing rubber ring.

Fresh air components include indoor fresh air vents and indoor exhaust vents. The outer ring of the indoor connector is inserted into the indoor air outlet slot through two connector buckles. When removing it after sale, you can press the connector buckle to remove the pressing position and easily pull it out.

The exhaust pipe of the take-over assembly constitutes a dirty air channel with the indoor exhaust port and the outdoor exhaust box, and the new air duct of the take-over assembly constitutes a fresh air channel with the indoor fresh air port and the outdoor fresh air box.

The length of the fresh air duct is cut according to the thickness of the wall 130, the end connected to the outdoor rain cover assembly can be cut, and the end connected to the indoor air conditioner cannot be cut.

When installing the take-over parts on the wall, they must maintain a downwardly inclined angle with the wall, and the hole on the indoor side is higher than the outdoor side to prevent rainwater from flowing back.

In the hot summer, the air temperature of the fresh air pipe is very high, and the dirty air discharged from the room passes through the exhaust pipe, the temperature is very low, and the temperature of the fresh air flowing to the full heat exchange core will be reduced by the cooling of the exhaust pipe. To the effect of heat exchange in advance. On the contrary, in the cold winter, cold air enters the fresh air duct, high-temperature dirty air passes through the exhaust duct, and cold air exchanges cold and heat to improve the problem of fresh air, and then enters the indoor full heat exchange core.

Using the above-mentioned casing structure to take over parts only needs to make a hole in the wall to realize the function of introducing fresh air and discharging dirty air. At the same time, the corrugated blown fresh air hose and the retractable exhaust pipe can be used to bend the hose during installation, which can reduce the area occupied by the air conditioner and facilitate after-sales installation and maintenance. The cooperative use of the rain cover assembly and the connecting part can ensure that rainwater will not return to the room, and achieve the purpose of preventing rainwater from returning. Condensation water is generated in the insulation sleeve of the connecting part, and the sleeve of the fresh air pipe and the exhaust pipe can play the effect of secondary heat exchange.

In addition, the fresh air pipe can use a smooth inner wall, corrugated or threaded blow molding pipe or other forms of hose on the outer wall, and the smooth inner wall can reduce the air resistance and increase the fresh air volume.

The large pipe of the connecting part of the casing structure can be a fresh air pipe or an exhaust pipe. The large tube can use telescopic hose, and the bending capacity of the telescopic hose is more wall than that of the corrugated blow molding tube. Large tubes and small tubes use telescopic hoses for after-sale installation without cutting, customers can extend and shorten according to demand, reducing after-sales installation costs.

From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:

1. Solve the problems of high cost of after-sales installation punching and large number of punching;

2. Solve the problem that the takeover cannot be bent;

3. Solve the problem of low heat exchange efficiency of fresh air and exhaust air.

The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

A takeover structure, characterized in that it includes:

A first tube body (10), the lumen of the first tube body (10) is a first gas channel;

A second tube body (20), the second tube body (20) is sleeved outside the first tube body (10), the second tube body (20) and the first tube body (10) ) The gap between them forms a second gas channel;

Wherein, at least part of the first tube body (10) and at least part of the second tube body (20) can be arranged to be bent so as to bend the first tube body (10) and the The second pipe body (20) adjusts the position of the takeover structure.
The connecting structure according to claim 1, wherein the first tube body (10) is a telescopic hose, and the second tube body (20) is a plastic bellows or telescopic hose.
The takeover structure according to claim 1, characterized in that the takeover structure is used to connect with the main body (100) of the air-conditioning indoor unit so that the main body (100) of the air-conditioning indoor unit passes through the takeover structure Connected to the outdoor, the takeover structure also includes:

An indoor joint part (30), the indoor joint part (30) is provided on the side of the main body (100) of the air-conditioning indoor unit near the first tube body (10) and the second tube body (20) So that the first pipe body (10) and the second pipe body (20) are connected to the main body (100) of the air-conditioning indoor unit through the indoor joint member (30).
The takeover structure according to claim 3, wherein the indoor joint member (30) includes a first connection portion (31) and a second connection portion (32) located outside the first connection portion (31) , The first connecting portion (31) is sleeved on the outer side of the first tube (10) and communicates with the first gas passage, and the second tube (20) is sleeved on the second Outside the connecting portion (32), a gap between the second connecting portion (32) and the first connecting portion (31) communicates with the second gas passage.
The takeover structure according to claim 4, wherein the takeover structure further comprises:

A first sealing ring (40), the first sealing ring (40) is disposed in the first connecting portion (31) and sandwiched between an end surface of the first tube body (10) and the first connection Between the inner wall surfaces of the portion (31).
The takeover structure according to claim 5, characterized in that the cavity of the first connecting portion (31) is a stepped hole, and the first seal ring (40) is limited at the stepped surface of the stepped hole .
The takeover structure according to claim 4, characterized in that the main body (100) of the air-conditioning indoor unit has a takeover connection portion, and the takeover structure further includes a third connection portion (33), the third connection portion (33) Connected to the second connection portion (32), and the third connection portion (33) is used to connect to the takeover connection portion.
The take-over structure according to claim 7, characterized in that the take-over connection portion is provided with a snap groove portion, and the third connection portion (33) is provided with a snap member that cooperates with the snap groove portion ( 331), so that the third connecting portion (33) and the takeover connecting portion are detachably connected by the locking member (331) being engaged with the locking groove portion.
The takeover structure according to claim 7, wherein the takeover structure further comprises:

A clamping member (50), the clamping member (50) is disposed in the cavity of the third connection portion (33), and the clamping member (50) is sandwiched between the third connection portion (33) And the takeover connection.
The takeover structure according to claim 1, wherein the takeover structure further comprises:

A support assembly (60), the support assembly (60) being disposed in the second gas channel and connected to both the first tube body (10) and the second tube body (20) to support the The first tube body (10) and the second tube body (20).
The takeover structure according to claim 10, wherein the support assembly (60) includes a plurality of support rings (61), the support rings (61) are sleeved on the first tube body (10) A plurality of support rings (61) are arranged at intervals along the extending direction of the second gas channel.
The takeover structure according to claim 11, characterized in that, the support ring (61) is formed by splicing a plurality of support parts (611) arranged in sequence around the first tube body (10), two adjacent The support parts (611) are snapped together.
The takeover structure according to claim 11, wherein the support ring (61) includes a main ring body (612) and a positioning portion (613) provided on the main ring body (612), the positioning The portion (613) is in contact with the inner wall surface of the second tube body (20), and the positioning portion (613) is provided with a gas escape hole (614) for passing gas, and the gas escape hole (614) is The second gas passage is in communication.
The takeover structure according to claim 1, wherein the takeover structure further comprises:

A first wind box (70), the first wind box (70) having a wind box accommodating cavity (71) and an installation opening (72) communicating with the wind box accommodating cavity (71), the mounting opening (72) ) The upper cover is provided with a protective cover (73);

A second wind box (80), the second wind box (80) is installed in the wind box accommodating cavity (71), the second wind box (80) is provided with a ventilation cavity, the ventilation cavity In order to communicate with the first gas channel, the gap between the first wind box (70) and the second wind box (80) is used to communicate with the second gas channel.
The takeover structure according to claim 14, characterized in that the first wind box (70) includes a first vent (74) for butting with the second tube body (20), the second The wind box (80) has a second ventilation part (81) for butting with the first tube body (10), the second ventilation part (81) is penetrated in the first ventilation part (74) A second seal ring (91) is interposed between the first vent (74) and the second tube (20), the second vent (81) and the first tube ( 10) A third sealing ring (92) is interposed therebetween.
The takeover structure according to claim 1, wherein the takeover structure further comprises:

Insulation sleeve (93), which is sleeved on the outside of the second tube body (20).
The takeover structure according to claim 1, characterized in that the takeover structure is used to connect with the fresh air device (120) of the main body (100) of the air-conditioning indoor unit, and the first gas channel is a dirty air channel The second gas channel is a fresh air channel.
An air conditioner indoor unit includes a takeover structure, wherein the takeover structure is the takeover structure according to any one of claims 1 to 17.