Drain pipe assembly and air conditioner thereof

Abstract

The drainage pipe assembly comprises a drainage hose main body and a drainage connecting pipe, one end of the drainage hose main body is connected with an air conditioner indoor unit, and the other end of the drainage hose main body is provided with a first connecting plug; one end of the drainage connecting pipe is provided with a second connecting plug which is connected with the first connecting plug in an inserted mode; a rotary locking structure enabling the first connecting plug of the drainage hose body and the second connecting plug of the drainage connecting pipe to be screwed and self-locked is arranged between the first connecting plug of the drainage hose body and the second connecting plug of the drainage connecting pipe, and the first connecting plug of the drainage hose body and the second connecting plug of the drainage connecting pipe are screwed and self-locked through the rotary locking structure. And after-sales water leakage complaint is caused. Insulating tape is directly canceled, and the drain pipe assemblies can be self-locked, so that the hidden danger that the drain pipe assemblies fall off and need to be manually reinstalled for multiple times is avoided; the installation process is simplified, the installation difficulty and the installation cost of installation workers are reduced, and subsequent replacement is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of air conditioners, in particular to a drain pipe assembly and an air conditioner thereof. Background Art

[0002] Air conditioners have become popular in every household, bringing coolness to each family. However, during the use of air conditioners, water leakage seriously affects the user experience. After analyzing relevant after-sales data, it is found that the main reason for water leakage in air conditioners is the detachment of the drain pipe plug joint. To ensure firm docking, the drain pipe plug joint needs to be wrapped with insulating tape to prevent it from falling off. However, the tape is prone to failure over time. After the drain pipe plug joint falls off, the condensed water flows out along the detachment position, causing damage to the user's wall or furniture. In severe cases, abnormal situations such as electrical arcing may even occur. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a drain pipe assembly and an air conditioner thereof, aiming to solve the technical problem that the drain pipe plug joint in the related art is prone to falling off.

[0004] To solve the above problems, according to one aspect of the present application, an embodiment of the utility model provides a drain pipe assembly, which includes:

[0005] A drain hose main body, one end of which is connected to the indoor unit of the air conditioner, and the other end has a first plug joint;

[0006] A drain connection pipe, one end of which has a second plug joint inserted into the first plug joint;

[0007] Wherein, a rotation locking structure is constructed between the first plug joint and the second plug joint to enable the two to be rotationally locked and self-locked.

[0008] In some embodiments, the first plug joint is configured as a flared structure, the second plug joint is configured as a conical structure adapted to the flared structure, and the second plug joint is inserted into the first plug joint.

[0009] In some embodiments, the second plug joint is configured as a flared structure, the first plug joint is configured as a conical structure adapted to the flared structure, and the first plug joint is inserted into the second plug joint.

[0010] In some embodiments, the second plug joint is inserted into the first plug joint, and the rotation locking structure includes a spiral groove formed on the inner hole wall of the first plug joint and a spiral protrusion formed on the outer wall of the second plug joint and adapted to the spiral groove.

[0011] In some embodiments, at least two corrugated grooves spaced apart along the axial direction of the drainage hose body are further formed on the inner hole wall of the first socket joint, and a clamping protrusion adapted to the corrugated groove is formed on the outer wall of the second socket joint. Both of the two corrugated grooves are located on a side of the spiral groove away from the drainage connecting pipe.

[0012] In some embodiments, the first socket joint is inserted into the second socket joint. The rotation locking structure includes a spiral groove formed on the inner hole wall of the second socket joint and a spiral protrusion formed on the outer wall of the first socket joint and adapted to the spiral groove.

[0013] In some embodiments, at least two corrugated grooves spaced apart along the axial direction of the drainage connecting pipe are further formed on the inner hole wall of the second socket joint, and a clamping protrusion adapted to the corrugated groove is formed on the outer wall of the first socket joint. Both of the two corrugated grooves are located on a side of the spiral groove away from the drainage hose body.

[0014] In some embodiments, the corrugated groove is an annular groove extending circumferentially along the drainage connecting pipe, and the clamping protrusion is an annular protrusion extending circumferentially along the drainage connecting pipe; the annular protrusion is clamped in the annular groove.

[0015] In some embodiments, the cross section of the annular protrusion is a circular arc with a radius of not less than 3 mm.

[0016] According to another aspect of the present application, an embodiment of the present utility model further provides an air conditioner, and the air conditioner includes an air conditioner indoor unit and the drainage pipe assembly as described above.

[0017] Compared with the prior art, the drainage pipe assembly of the present utility model has at least the following beneficial effects:

[0018] An embodiment of the present utility model discloses a drainage pipe assembly. The drainage pipe assembly includes a drainage hose body and a drainage connecting pipe. One end of the drainage hose body is connected to an air conditioner indoor unit, and the other end of the drainage hose body has a first socket joint; one end of the drainage connecting pipe has a second socket joint inserted into the first socket joint; by constructing a rotation locking structure that enables the two to be screwed and locked between the first socket joint of the drainage hose body and the second socket joint of the drainage connecting pipe, the first socket joint of the drainage hose body and the second socket joint of the drainage connecting pipe are screwed and locked through the rotation locking structure, which can effectively solve the problem that the connection of the air conditioner drainage pipe assembly is not firm and causes after-sales water leakage complaints; directly cancel the insulating tape, and the drainage pipe assembly can be self-locked without falling off, avoiding the hidden danger that the drainage pipe assemblies fall off and need to be reinstalled manually multiple times; simplifies the installation process, reduces the installation difficulty and installation cost of the installation workers, and is convenient for subsequent replacement of the drainage pipe assembly.

[0019] On the other hand, the air conditioner provided by the utility model is manufactured based on the above-mentioned drain pipe assembly, and its beneficial effects can be referred to those of the above-mentioned drain pipe assembly, which will not be elaborated here one by one.

[0020] The above description is only an overview of the technical solution of the utility model. In order to be able to more clearly understand the technical means of the utility model and implement it in accordance with the content of the description, the following takes the preferred embodiments of the utility model and cooperates with the attached drawings to elaborate in detail as follows. Brief Description of the Drawings

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the following will briefly introduce the attached drawings required for the description of the embodiments. Obviously, the attached drawings in the following description are some embodiments of the utility model. For those of ordinary skill in the art, without creative efforts, other attached drawings can also be obtained based on these attached drawings.

[0022] Figure 1 Schematic structural diagram when the drain hose main body and the drain connection pipe of the drain pipe assembly provided by the embodiment of the utility model are inserted and installed;

[0023] Figure 2 Schematic structural diagram of the drain hose main body of the drain pipe assembly provided by the embodiment of the utility model;

[0024] Figure 3 Cross-sectional view of the drain hose main body of the drain pipe assembly provided by the embodiment of the utility model;

[0025] Figure 4 Schematic structural diagram of the drain connection pipe of the drain pipe assembly provided by the embodiment of the utility model;

[0026] Figure 5 Schematic assembly structure diagram of the drain hose main body and the drain connection pipe of the drain pipe assembly provided by the embodiment of the utility model;

[0027] Figure 6 Schematic structural diagram of the existing drain hose main body;

[0028] Figure 7 Schematic structural diagram of the existing drain connection pipe;

[0029] Figure 8 Schematic assembly structure diagram of the existing drain hose main body and the drain connection pipe.

[0030] Description of the reference numerals:

[0031] 1. Drain hose main body; 11. First plug connector; 111. Spiral groove; 112. Corrugated groove;

[0032] 2. Drainage connecting pipe; 21. Second socket; 211. Spiral protrusion; 212. Clamping protrusion. Detailed implementation manners

[0033] To further elaborate on the technical means and effects adopted by the present utility model to achieve the intended utility model purpose, the following, in conjunction with the accompanying drawings and preferred embodiments, details the specific implementation manners, structures, features and their effects of the application according to the present utility model. In the following description, different "one embodiment" or "embodiment" do not necessarily refer to the same embodiment. In addition, the specific features, structures, or characteristics in one or more embodiments can be combined in any suitable form.

[0034] In the description of the present utility model, it should be clear that the terms "first", "second", etc. in the description and claims of the present utility model and the above-mentioned drawings are used to distinguish similar objects, and do not have to be used to describe a specific order or sequence; the terms "vertical", "lateral", "longitudinal", "front", "rear", "left", "right", "upper", "lower", "horizontal", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present utility model, rather than meaning that the indicated device or element must have a specific orientation or position, so it cannot be understood as a limitation to the present utility model.

[0035] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "connected", "connected" 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, an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0036] The air conditioner drainage pipe refers to the pipe connecting the indoor and outdoor units of the air conditioner, generally made of PVC material. According to national standards and industry specifications, the thickness of the air conditioner water pipe is generally between 1.5 mm and 2.0 mm, and the specific value should be determined according to the actual situation.

[0037] Such as Figures 6 - 8As shown in the figure, the existing drain pipe consists of two parts: a drain hose main body 1 and a drain connection pipe 2. One end of the drain hose main body 1 is installed on the air conditioner indoor unit, and the other end is butted with the drain connection pipe 2. The connecting socket lumen of the existing drain hose main body 1 has a conventional cylindrical opening. There are two card slots at the connecting socket of the drain hose main body 1. The installer directly inserts the drain connection pipe 2 into the drain hose main body 1, and the snap ring is snapped into the two card slots of the drain connection pipe 2 to achieve locking. During the installation process, it is easy to cause deformation of the connecting socket, affecting the docking effect. Moreover, due to the low groove depth height, the docking area between the two is small, and it is easy for the drain pipe plug joint to fall off. In order to ensure the tightness of the docking, the drain pipe joint position needs to be wrapped with insulating tape to prevent the drain pipe joint from falling off. However, the tape is prone to failure after a long time, and the condensed water flows out along the falling-off position after the drain pipe plug joint falls off, causing damage to the user's wall or furniture. In severe cases, abnormal conditions such as electrical sparking may even occur.

[0038] Embodiment 1

[0039] As Figures 1 - 5 shown, the embodiment of the present utility model provides a drain pipe assembly, and the drain pipe assembly includes:

[0040] A drain hose main body 1, one end of which is connected to the air conditioner indoor unit, and the other end has a first plug joint 11;

[0041] A drain connection pipe 2, one end of which has a second plug joint 21 that is inserted into the first plug joint 11;

[0042] Wherein, a rotation locking structure for making the two rotate and lock with each other is constructed between the first plug joint 11 and the second plug joint 21.

[0043] In this embodiment, the drain pipe assembly includes a drain hose main body 1 and a drain connection pipe 2. One end of the drain hose main body 1 is connected to the air conditioner indoor unit, and the other end of the drain hose main body 1 has a first plug joint 11; one end of the drain connection pipe 2 has a second plug joint 21 that is inserted into the first plug joint 11. In this embodiment, a rotation locking structure for making the two rotate and lock with each other is constructed between the first plug joint 11 of the drain hose main body 1 and the second plug joint 21 of the drain connection pipe 2. Through the rotation locking structure, the first plug joint 11 of the drain hose main body 1 and the second plug joint 21 of the drain connection pipe 2 are rotated and locked with each other, which can effectively solve the problem of loose connection of the air conditioner drain pipe assembly and resulting in after-sales water leakage complaints; directly cancel the insulating tape, the drain pipe assembly can be self-locked and will not fall off, avoiding the hidden danger of the drain pipe assembly falling off and requiring multiple manual reinstallations; simplifies the installation process, reduces the installation difficulty and installation cost of the installer, and is convenient for subsequent replacement of the drain pipe assembly.

[0044] In some embodiments, the first socket 11 is configured as a flared structure, the second socket 21 is configured as a conical structure adapted to the flared structure, and the second socket 21 is inserted into the first socket 11.

[0045] In this embodiment, by configuring the first socket 11 as a flared structure and the second socket 21 as a conical structure adapted to the flared structure of the first socket 11, it is convenient for the second socket 21 to be inserted into the first socket 11, facilitating the assembly by the installer, reducing the installation difficulty and cost of the installer, and facilitating the subsequent replacement of the drain pipe assembly.

[0046] In addition, in this embodiment, by changing the lumen of the first socket 11 of the drain hose body 1 from a conventional cylindrical opening to a flared opening, with the same taper as the second socket 21 of the drain connection pipe 2, when docking, the first socket 11 of the drain hose body 1 and the second socket 21 of the drain connection pipe 2 can be closely fitted, improving the docking stability, preventing water leakage, avoiding the risk of the disconnection between the drain pipe assemblies and the need for the installer to reinstall multiple times manually; simplifying the installation process, reducing the installation difficulty and cost of the installer, and facilitating the subsequent replacement of the drain pipe assembly.

[0047] In some embodiments, the second socket 21 is configured as a flared structure, the first socket 11 is configured as a conical structure adapted to the flared structure, and the first socket 11 is inserted into the second socket 21.

[0048] In this embodiment, by configuring the second socket 21 as a flared structure and the first socket 11 as a conical structure adapted to the flared structure, it is convenient for the first socket 11 to be inserted into the second socket 21, facilitating the assembly by the installer, reducing the installation difficulty and cost of the installer, and facilitating the subsequent replacement of the drain pipe assembly.

[0049] In addition, in this embodiment, by changing the second socket 21 of the drain connection pipe 2 to a flared opening, with the same taper as the first socket 11 of the drain hose body 1, when docking, the second socket 21 of the drain connection pipe 2 and the first socket 11 of the drain hose body 1 can be closely fitted, improving the docking stability, avoiding the risk of the disconnection between the drain pipe assemblies and the need for the installer to reinstall multiple times manually, and preventing water leakage. Simplifying the installation process, reducing the installation difficulty and cost of the installer, and facilitating the subsequent replacement of the drain pipe assembly.

[0050] In some embodiments, the second plug connector 21 is inserted into the first plug connector 11. The rotation locking structure includes a spiral groove 111 formed on the inner hole wall of the first plug connector 11 and a spiral protrusion 211 formed on the outer wall of the second plug connector 21 and adapted to the spiral groove 111.

[0051] In this embodiment, the second plug connector 21 is inserted into the first plug connector 11. The rotation locking structure includes a spiral groove 111 formed on the inner hole wall of the first plug connector 11 and a spiral protrusion 211 formed on the outer wall of the second plug connector 21 and adapted to the spiral groove 111. During assembly, the spiral groove 111 on the inner hole wall of the first plug connector 11 is screwed with the spiral protrusion 211 on the outer wall of the second plug connector 21, so that the first plug connector 11 of the drainage hose body 1 is screwed and self-locked with the first plug connector 11 of the drainage connecting pipe 2, which can effectively solve the problem of loose connection of the air conditioner drainage pipe assembly and cause after-sales water leakage complaints; directly cancel the insulating tape, the drainage pipe assembly can be self-locked and will not fall off, avoiding the hidden danger of the drainage pipe assembly falling off and requiring manual reinstallation multiple times; simplifies the installation process, reduces the installation difficulty and installation cost of the installation workers, and is convenient for subsequent replacement of the drainage pipe assembly.

[0052] The installer screws the two together. Threaded connection can effectively transmit force and torque, ensure the stability of the connection, and is convenient for disassembly, which is beneficial to the after-sales replacement of the drainage pipe.

[0053] In some embodiments, at least two corrugated grooves 112 are formed on the inner hole wall of the first plug connector 11 and are spaced along the axial direction of the drainage hose body 1. A clamping protrusion 212 adapted to the corrugated groove 112 is formed on the outer wall of the second plug connector 21. Both of the two corrugated grooves 112 are located on the side of the spiral groove 111 away from the drainage connecting pipe 2.

[0054] In this embodiment, by forming at least two corrugated grooves 112 spaced along the axial direction of the drainage hose body 1 on the inner hole wall of the first plug connector 11, a clamping protrusion 212 adapted to the corrugated groove 112 is formed on the outer wall of the second plug connector 21, and both of the two corrugated grooves 112 are located on the side of the spiral groove 111 away from the drainage connecting pipe 2. During assembly, the spiral groove 111 on the inner hole wall of the first plug connector 11 of the drainage hose body 1 is screwed with the outer wall of the second plug connector 21 of the drainage connecting pipe 2 and is adapted to the spiral groove 111, and at the same time, the clamping protrusion 212 is clamped in any one of the corrugated grooves 112, further improving the docking stability, avoiding the hidden danger of the drainage pipe assembly falling off and requiring manual reinstallation multiple times, and preventing water leakage. Simplifies the installation process, reduces the installation difficulty and installation cost of the installation workers, and is convenient for subsequent replacement of the drainage pipe assembly.

[0055] Preferably, the clamping protrusion 212 is clamped in the corrugated groove 112 farthest from the drainage connection pipe 2, which helps to prevent it from being pulled out easily when stressed. Even when the threaded connection fails and the clamping protrusion 212 disengages from the corrugated groove 112 farthest from the drainage connection pipe 2, the other corrugated grooves 112 will continue to lock the clamping protrusion 212.

[0056] The corrugated groove 112 and the adjacent corrugated grooves 112 can be further fixed with wire ties, which further improves the docking stability, avoids the potential hazard of the disconnection between the drain pipe components and the need for manual reinstallation multiple times, and prevents water leakage. It simplifies the installation process, reduces the installation difficulty and cost of installers, and facilitates the subsequent replacement of the drain pipe components.

[0057] In some embodiments, the first plug 11 is inserted into the second plug 21. The rotary locking structure includes a spiral groove 111 formed on the inner hole wall of the second plug 21 and a spiral protrusion 211 formed on the outer wall of the first plug 11 and adapted to the spiral groove 111.

[0058] In this embodiment, the first plug 11 is inserted into the second plug 21. The rotary locking structure specifically includes a spiral groove 111 formed on the inner hole wall of the second plug 21 and a spiral protrusion 211 formed on the outer wall of the first plug 11 and adapted to the spiral groove 111. During assembly, the spiral groove 111 on the inner hole wall of the second plug 21 of the drainage connection pipe 2 is screwed with the spiral protrusion 211 on the outer wall of the first plug 11 of the drainage hose main body 1, so that the first plug 11 of the drainage hose main body 1 and the first plug 11 of the drainage connection pipe 2 are screwed and self-locked. This can effectively solve the problem of loose connection of the air-conditioning drain pipe components, resulting in after-sales water leakage complaints; directly canceling the insulating tape, the drain pipe components can be self-locked and will not fall off, avoiding the potential hazard of the disconnection between the drain pipe components and the need for manual reinstallation multiple times; it simplifies the installation process, reduces the installation difficulty and cost of installers, and facilitates the subsequent replacement of the drain pipe components.

[0059] The installer screws the two together. The threaded connection can effectively transmit force and torque, ensure the stability of the connection, and is convenient for disassembly, which is beneficial for after-sales replacement of the drain pipe.

[0060] In some embodiments, at least two corrugated grooves 112 are further formed on the inner hole wall of the second plug 21 and are spaced apart along the axial direction of the drainage connection pipe 2. The outer wall of the first plug 11 is formed with a clamping protrusion 212 adapted to the corrugated groove 112, and both of the two corrugated grooves 112 are located on the side of the spiral groove 111 away from the drainage hose main body 1.

[0061] In this embodiment, at least two corrugated grooves 112 are formed on the inner hole wall of the second socket 21 and are spaced apart along the axial direction of the drain connection pipe 2. A clamping protrusion 212 adapted to the corrugated groove 112 is formed on the outer wall of the first socket 11. Both corrugated grooves 112 are located on the side of the spiral groove 111 away from the drain hose body 1. During assembly, the spiral groove 111 on the inner hole wall of the second socket 21 of the drain connection pipe 2 is screwed with the spiral protrusion 211 on the outer wall of the first socket 11 of the drain hose body 1, and at the same time, the clamping protrusion 212 is clamped in any one of the corrugated grooves 112, further improving the docking stability, avoiding the risk of detachment between the drain pipe components and the need for manual reinstallation multiple times, and preventing water leakage. The installation process is simplified, the installation difficulty and cost of the installation workers are reduced, and it is convenient to replace the drain pipe components subsequently.

[0062] Preferably, the clamping protrusion 212 is clamped in the corrugated groove 112 farthest from the drain hose body 1, which helps to prevent it from being pulled out easily when stressed. Even when the threaded connection fails and the clamping protrusion 212 disengages from the corrugated groove 112 farthest from the drain hose body 1, the other corrugated grooves 112 will continue to lock the clamping protrusion 212.

[0063] The corrugated groove 112 and the adjacent corrugated groove 112 can be further fixed with a wire tie, further improving the docking stability, avoiding the risk of detachment between the drain pipe components and the need for manual reinstallation multiple times, and preventing water leakage. The installation process is simplified, the installation difficulty and cost of the installation workers are reduced, and it is convenient to replace the drain pipe components subsequently.

[0064] In some embodiments, the corrugated groove 112 is an annular groove extending along the circumferential direction of the drain connection pipe 2, and the clamping protrusion 212 is an annular protrusion extending along the circumferential direction of the drain connection pipe 2; the annular protrusion is clamped in the annular groove.

[0065] In this embodiment, the corrugated groove 112 is an annular groove extending along the circumferential direction of the drain connection pipe 2, and the clamping protrusion 212 is an annular protrusion extending along the circumferential direction of the drain connection pipe 2. The annular protrusion is clamped in the annular groove, which is convenient for the clamping protrusion 212 to be clamped in the corrugated groove 112 when the second socket 21 and the first socket 11 are screwed together.

[0066] In some embodiments, the cross-section of the annular protrusion is a circular arc with a radius of not less than 3 mm.

[0067] The snap ring in the related art has a cross-section of a circular arc with a radius of 1 mm.

[0068] In this embodiment, by improving the snap ring into an annular protrusion with a circular arc cross-section having a radius of not less than 3 mm, the production and processing difficulty is reduced, the contact area of the connection is increased, and the overall firmness after installation is improved.

[0069] For the spiral groove 111 and the spiral protrusion 211 of the present application, a 60-degree sealed pipe thread is selected. This thread has good tightness and can prevent condensed water from leaking from the connection. Secondly, the drain pipe is involved in the transmission and friction of condensed water, and this thread has high wear resistance to ensure the reliability of long-term operation.

[0070] Embodiment 2

[0071] The embodiment of the present utility model further provides an air conditioner, and the air conditioner includes an air conditioner indoor unit and the drain pipe assembly of Embodiment 1.

[0072] In summary, those skilled in the art can clearly understand that for the convenience and brevity of description, the specific working processes of the above-described devices, apparatuses, and units can refer to the corresponding processes in the foregoing method embodiments, and will not be elaborated herein.

[0073] The above is only the specific embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model can easily think of various equivalent modifications or substitutions, and these modifications or substitutions should all be covered within the protection scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.

Claims

1. A drainage pipe assembly, characterized in that: The drain pipe assembly comprises: A drainage hose body, one end of which is connected to the indoor unit of the air conditioner, and the other end of which has a first plug connector; A drainage connecting pipe, one end of which has a second plug connector plugged into the first plug connector; A rotational locking structure is constructed between the first plug connector and the second plug connector so that the two can be screwed together and self-locked.

2. The drain pipe assembly according to claim 1, characterized in that: The first plug connector is configured as a trumpet-shaped structure, the second plug connector is configured as a conical structure adapted to the trumpet-shaped structure, and the second plug connector is inserted into the first plug connector.

3. The drain pipe assembly according to claim 1, characterized in that: The second plug connector is configured as a trumpet-shaped structure, the first plug connector is configured as a conical structure matching the trumpet-shaped structure, and the first plug connector is inserted into the second plug connector.

4. The drain pipe assembly according to claim 1, characterized in that: The second plug connector is inserted into the first plug connector, and the rotary locking structure includes a spiral groove constructed on the inner hole wall of the first plug connector and a spiral protrusion constructed on the outer wall of the second plug connector and matched with the spiral groove.

5. The drain pipe assembly according to claim 4, characterized in that: The inner hole wall of the first plug connector is also constructed with at least two corrugated grooves spaced apart along the axial direction of the drainage hose body, and the outer wall of the second plug connector is constructed with a snap-on protrusion adapted to the corrugated grooves, and the two corrugated grooves are both located on the side of the spiral groove away from the drainage connecting pipe.

6. The drain pipe assembly according to claim 1, characterized in that: The first plug connector is inserted into the second plug connector, and the rotary locking structure includes a spiral groove constructed on the inner hole wall of the second plug connector and a spiral protrusion constructed on the outer wall of the first plug connector and matched with the spiral groove.

7. The drain pipe assembly according to claim 6, characterized in that: The inner hole wall of the second plug connector is also constructed with at least two corrugated grooves spaced apart along the axial direction of the drainage connecting pipe, and the outer wall of the first plug connector is constructed with a snap-on protrusion adapted to the corrugated grooves, and the two corrugated grooves are both located on the side of the spiral groove away from the drainage hose body.

8. The drain pipe assembly according to claim 5 or 7, characterized in that: The corrugated groove is an annular groove extending along the circumference of the drainage connecting pipe, and the clamping protrusion is an annular protrusion extending along the circumference of the drainage connecting pipe; the annular protrusion is clamped in the annular groove.

9. The drain pipe assembly according to claim 8, characterized in that: The cross section of the annular protrusion is an arc shape with a radius not less than 3 mm.

10. An air conditioner, characterized in that: The air conditioner comprises an air conditioner indoor unit and the drain pipe assembly according to any one of claims 1-9.

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