Connecting pipe assembly, drainage structure and air conditioner indoor unit

Abstract

The present invention provides a connecting pipe assembly, a drainage structure and an air conditioner indoor unit. The connecting pipe assembly includes a connecting pipe and a joint connected to the connecting pipe, the joint is used to be clamped with the drainage pipe of the drainage structure; a first guide groove is provided on the joint, the first guide groove is adapted to the first guide protrusion on the drainage pipe, at least part of the first guide protrusion is used to be arranged in the first guide groove, so that when the joint is clamped with the drainage pipe, the first guide protrusion and the first guide groove are used to guide; and / or, a second guide protrusion is provided on the joint, the second guide protrusion is adapted to the second guide groove on the drainage pipe, at least part of the second guide protrusion is used to be arranged in the second guide groove, so that when the joint is clamped with the drainage pipe, the second guide protrusion and the second guide groove are used to guide. The connecting pipe assembly of the present invention solves the problem that the connecting pipe assembly in the prior art is not easy to assemble.

Description

Technical Field

[0001] The invention relates to the field of household appliances, and in particular to a connecting pipe assembly, a drainage structure and an air conditioner indoor unit. Background Art

[0002] The indoor unit of the air conditioner will generate a large amount of condensed water during the cooling process. The condensed water needs to be discharged to the outside or to the sewer pipe through the drainage connection pipe. The current drainage connection pipe structure design has the following problems:

[0003] Difficult assembly: The operator needs to hold the drain pipe in one hand and the bottom shell in the other hand, rotate the drain pipe while pushing it forward, which makes assembly very difficult, especially when the ambient temperature is low. The rubber block of the drain pipe becomes harder at low temperatures, which affects assembly. After the drain pipe is assembled in place, the metal hook needs to be installed on the positioning column on the bottom shell. The two are interference fits, which makes assembly difficult and labor-intensive.

[0004] Unable to realize automation: The matching mode of the original drain pipe determines that the assembly of the drain pipe is difficult to realize automation.

[0005] There are quality risks: Since the drain pipe needs to be installed by rotating and pushing, if too much force is used, it will cause wrinkles in the drain pipe and there is a risk of rupture and leakage. Summary of the invention

[0006] The main purpose of the present invention is to provide a connecting pipe assembly, a drainage structure and an air conditioner indoor unit to solve the problem that the connecting pipe assembly in the prior art is inconvenient to assemble.

[0007] In order to achieve the above-mentioned purpose, according to one aspect of the present invention, a connecting pipe assembly is provided, including a connecting pipe and a joint connected to the connecting pipe, the joint being used to be clamped with a drain pipe of a drain structure; a first guide groove is provided on the joint, the first guide groove is adapted to a first guide protrusion on the drain pipe, at least a part of the first guide protrusion is used to be arranged in the first guide groove, so as to guide the first guide protrusion and the first guide groove when the joint is clamped with the drain pipe; and / or a second guide protrusion is provided on the joint, the second guide protrusion is adapted to a second guide groove on the drain pipe, at least a part of the second guide protrusion is used to be arranged in the second guide groove, so as to guide the second guide protrusion and the second guide groove when the joint is clamped with the drain pipe.

[0008] Furthermore, the joint includes a joint body and a clip connected to the joint body, and a first guide groove is arranged on the joint body; the joint body is used to be sleeved on the drain pipe, and the clip is used to snap into the clip groove on the drain pipe; when installing the connecting pipe assembly, at least a part of the first guide protrusion is inserted into the first guide groove and then the clip is snapped into the clip groove.

[0009] Furthermore, the joint body has a first connecting end and a second connecting end that are relatively arranged along its axial direction; the first guide groove is arranged on the inner wall of the joint body, the first guide groove extends along the axial direction of the joint body, and one end of the first guide groove extends to the first connecting end of the joint body to form a first installation port, so that the first guide protrusion can be inserted into the first guide groove through the first installation port.

[0010] Furthermore, the joint body includes a first side wall section, the inner wall of which is the bottom of the first guide groove; the first side wall section has a first adjustment gap and a second adjustment gap, the first adjustment gap extends from the first connection end toward the second connection end, and the second adjustment gap extends from the first connection end toward the second connection end, and a first adjustment portion is formed between the first adjustment gap and the second adjustment gap, and the position of the first adjustment portion is adjustably arranged; wherein, the buckle is connected to the first adjustment portion.

[0011] Furthermore, the joint body has a first connecting end and a second connecting end arranged opposite to each other along its axial direction; the first guide groove is arranged at the first connecting end and extends from the first connecting end toward the second connecting end, and the notch of the first guide groove is located at the first connecting end so that the first guide protrusion can be inserted into the first guide groove through the notch.

[0012] Furthermore, the joint body is an annular structure; the first guide groove extends along the radial direction of the joint body, and the first guide groove extends to the inner wall and the outer wall of the joint body; two first guide grooves are arranged on the joint body, and the two first guide grooves are arranged at intervals along the circumferential direction of the joint, and a second adjustment part is formed between the two first guide grooves, and the position of the second adjustment part is adjustable; wherein, the buckle is connected to the second adjustment part.

[0013] Further, the cross section of the first guide groove perpendicular to the radial direction of the joint body is rectangular, triangular, or trapezoidal.

[0014] Furthermore, a handle is provided on the buckle, and the handle is provided on a side of the buckle away from the axis of the joint body.

[0015] Furthermore, the connecting pipe assembly also includes a transition connecting pipe and a sealing ring, and the connecting pipe is connected to the joint through the transition connecting pipe; the sealing ring is fixed between the joint and the transition connecting pipe along the axial direction of the transition connecting pipe, so that the sealing ring seals between the connecting pipe assembly and the drain pipe.

[0016] According to another aspect of the present invention, a drainage structure is provided, including a drainage pipe, on which a first guide protrusion is provided; and / or on which a second guide groove is provided.

[0017] Furthermore, a card slot is provided on the drain pipe.

[0018] Furthermore, the drain pipe has a connecting end and a free end that are relatively arranged along its extension direction, and the connecting end is used to connect with at least part of the component to be drained; the first guide protrusion has a first end and a second end that are relatively arranged along the extension direction of the drain pipe, and the first end of the first guide protrusion is located on the side of the second end of the first guide protrusion close to the free end; wherein, the card groove is arranged on the first guide protrusion, and the card groove is spaced apart from the first end of the first guide protrusion.

[0019] Furthermore, the drain pipe has a connecting end and a free end that are arranged opposite to each other along its extension direction, and the connecting end is used to be connected to at least a part of the component to be drained; wherein the first guide protrusion is arranged on a side of the slot close to the free end.

[0020] Furthermore, there are two first guide protrusions, and the two first guide protrusions are arranged at intervals along the circumference of the drain pipe.

[0021] Furthermore, the cross-section of the first guide protrusion perpendicular to the radial direction of the drain pipe is rectangular, triangular, or trapezoidal.

[0022] Furthermore, a protrusion is provided on the drain pipe, a groove is provided on the protrusion, a first guide protrusion is connected to the first end of the protrusion and is located between the protrusion and the free end; at least a part of the first end of the protrusion is used to stop the first connecting end of the joint of the connecting pipe assembly; wherein the protrusion is an arc structure extending along the circumference of the drain pipe; or, the protrusion is an annular structure provided along the circumference of the drain pipe.

[0023] According to another aspect of the present invention, there is provided an air-conditioning indoor unit, comprising: the above-mentioned connecting pipe assembly; the above-mentioned drainage structure, the drainage structure being used to discharge condensed water generated by the air-conditioning indoor unit; during the assembly process of the connecting pipe assembly and the drainage structure, the connecting pipe assembly and the drainage structure are guided and installed by a first guide protrusion and a first guide groove; and / or, the connecting pipe assembly and the drainage structure are guided and installed by a second guide protrusion and a second guide groove, so that the connecting pipe assembly is clamped with the drainage structure.

[0024] The joint of the connecting pipe assembly of the present invention is used to be clamped with the drain pipe of the drainage structure so that the liquid discharged from the drain pipe can be discharged from the connecting pipe through the connecting pipe assembly; when the connecting pipe assembly is installed on the drain pipe, the connecting pipe assembly is guided by the first guide protrusion and the first guide groove so that the first guide protrusion moves along the extension direction of the first guide groove; and / or, the connecting pipe assembly is guided by the second guide protrusion and the second guide groove so that the second guide protrusion moves along the extension direction of the second guide groove; thereby ensuring the circumferential alignment of the connecting pipe assembly and the drain pipe, facilitating the clamping of the two, and solving the problem that the connecting pipe assembly is inconvenient to assemble. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0026] Figure 1 An axonometric view showing a joint of a first embodiment of a connecting pipe assembly according to the present invention;

[0027] Figure 2 A top view of a joint of a first embodiment of a connecting pipe assembly according to the present invention is shown;

[0028] Figure 3 A side view showing an angle of a joint of a first embodiment of a connecting pipe assembly according to the present invention;

[0029] Figure 4 A side view showing another angle of the joint of the first embodiment of the connecting pipe assembly according to the present invention;

[0030] Figure 5 A front view showing a transition connecting pipe according to a first embodiment of a connecting pipe assembly of the present invention;

[0031] Figure 6 A side view of a transition pipe according to a first embodiment of a connecting pipe assembly of the present invention is shown;

[0032] Figure 7 A top view of a transition pipe according to a first embodiment of a connecting pipe assembly of the present invention is shown;

[0033] Figure 8 An axonometric view showing a transition connecting pipe according to a first embodiment of a connecting pipe assembly of the present invention;

[0034] Fig. 9 A front view showing a drain pipe according to a first embodiment of a drain structure of the present invention;

[0035] Fig.10 A side view showing a drain pipe according to a first embodiment of a drain structure of the present invention;

[0036] Fig.11 A bottom view showing a drain pipe according to a first embodiment of a drain structure of the present invention;

[0037] Fig.12 An assembly diagram showing a first embodiment of a connecting pipe assembly and a drain pipe according to the present invention is shown;

[0038] Fig.13 A top view of a sealing ring of a connecting pipe assembly according to the present invention is shown;

[0039] Fig.14 A front view of a sealing ring of a connecting pipe assembly according to the present invention is shown;

[0040] Fig.15 A top view of a compression piece of a connecting pipe assembly according to the present invention is shown;

[0041] Fig.16 A front view of a compression piece of a connecting pipe assembly according to the present invention is shown;

[0042] Fig.17 An assembly diagram showing a second embodiment of a connecting pipe assembly and a drain pipe according to the present invention is shown;

[0043] Fig.18 A top view of a joint of a second embodiment of a connecting pipe assembly according to the present invention is shown;

[0044] Fig.19 A side view showing an angle of a joint of a second embodiment of a connecting pipe assembly according to the present invention;

[0045] Fig. 20 A side view showing another angle of a joint of a second embodiment of a connecting pipe assembly according to the present invention;

[0046] Fig.21 A front view showing a transition pipe according to a second embodiment of a connecting pipe assembly of the present invention;

[0047] Fig. 22 A side view of a transition pipe according to a second embodiment of a connecting pipe assembly of the present invention is shown;

[0048] Fig.23 A top view of a transition pipe according to a second embodiment of a connecting pipe assembly of the present invention is shown;

[0049] Fig.24 A front view showing a drain pipe according to a second embodiment of a drain structure of the present invention;

[0050] Fig.25 A side view showing a drain pipe according to a second embodiment of a drain structure of the present invention;

[0051] Fig.26 A bottom view showing a drain pipe according to a second embodiment of a drain structure of the present invention;

[0052] Fig. 27 An assembly diagram showing a third embodiment of a connecting pipe assembly and a drain pipe according to the present invention is shown;

[0053] Fig.28 An axonometric view showing a joint of a third embodiment of a connecting pipe assembly according to the present invention;

[0054] Fig.29 A top view of a joint of a third embodiment of a connecting pipe assembly according to the present invention is shown;

[0055] Fig.30 A side view showing an angle of a joint of a third embodiment of a connecting pipe assembly according to the present invention;

[0056] Fig.31 A side view showing another angle of a joint of a third embodiment of a connecting pipe assembly according to the present invention;

[0057] Fig.32 An axonometric view showing a drain pipe according to a third embodiment of a drain structure of the present invention;

[0058] Fig.33 A front view showing a drain pipe according to a third embodiment of a drain structure of the present invention;

[0059] Fig.34 A side view showing a drain pipe according to a third embodiment of a drain structure of the present invention;

[0060] Fig.35 A bottom view showing a drain pipe according to a third embodiment of a drain structure of the present invention is shown.

[0061] The above drawings include the following reference numerals:

[0062] 12. Joint; 121. First guide groove; 122. First connection end; 123. Second connection end; 124. First mounting opening; 125. First side wall section; 126. First adjustment gap; 127. Second adjustment gap; 128. First adjustment portion; 129. Notch; 130. Second adjustment portion; 13. Buckle; 14. Handle; 15. Transition connecting pipe; 151. First mounting step; 152. Second mounting step; 153. Mounting slot; 16. Sealing ring; 17. Mounting protrusion; 18. Pressing sheet;

[0063] 21. Drain pipe; 211. First guide protrusion; 212. Slot; 213. Connecting end; 214. Free end; 215. Protrusion; 216. Stop surface;

[0064] 30, first chamfer; 40, first rounded corner; 50, second chamfer. DETAILED DESCRIPTION

[0065] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0066] It should be noted that the following detailed descriptions are illustrative and are intended to provide further explanation of the present application. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present application belongs.

[0067] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0068] The present invention provides a connecting pipe assembly, please refer to Figures 1 to 35 , including a connecting pipe and a joint 12 connected to the connecting pipe, the joint 12 is used to be clamped with the drain pipe 21 of the drainage structure; a first guide groove 121 is provided on the joint 12, the first guide groove 121 is adapted to the first guide protrusion 211 on the drain pipe 21, at least a part of the first guide protrusion 211 is used to be arranged in the first guide groove 121, so that when the joint 12 is clamped with the drain pipe 21, the first guide protrusion 211 and the first guide groove 121 are used for guiding; and / or, a second guide protrusion is provided on the joint 12, the second guide protrusion is adapted to the second guide groove on the drain pipe 21, at least a part of the second guide protrusion is used to be arranged in the second guide groove, so that when the joint 12 is clamped with the drain pipe 21, the second guide protrusion is used to be adapted to the second guide groove on the drain pipe 21, at least a part of the second guide protrusion is used to be arranged in the second guide groove, so that when the joint 12 is clamped with the drain pipe 21, the second guide protrusion is used to be arranged in the second guide groove, so that when the joint 12 is clamped with the drain pipe 21, the second guide protrusion is used to be guided by the second guide protrusion and the second guide groove.

[0069] The joint 12 of the connecting pipe assembly of the present invention is used to be clamped with the drain pipe 21 of the drainage structure so that the liquid discharged from the drain pipe 21 can be discharged from the connecting pipe through the connecting pipe assembly; when the connecting pipe assembly is installed on the drain pipe 21, the connecting pipe assembly is guided by the first guide protrusion 211 and the first guide groove 121 so that the first guide protrusion 211 moves along the extension direction of the first guide groove 121; and / or, the connecting pipe assembly is guided by the second guide protrusion and the second guide groove so that the second guide protrusion moves along the extension direction of the second guide groove; thereby ensuring the circumferential alignment of the connecting pipe assembly and the drain pipe 21, facilitating the clamping of the two, and solving the problem that the connecting pipe assembly is inconvenient to assemble.

[0070] Specifically, the first guide groove 121 extends along the axial direction of the joint 12, and the first guide protrusion 211 is inserted into the first guide groove 121 along the axial direction of the joint 12; the second guide groove extends along the axial direction of the joint 12, and the second guide protrusion is inserted into the second guide groove along the axial direction of the joint 12.

[0071] In this embodiment, the joint 12 includes a joint body and a buckle 13 connected to the joint body, and a first guide groove 121 is provided on the joint body; the joint body is used to be sleeved on the drain pipe 21, and the buckle 13 is used to be engaged with the clamping groove 212 on the drain pipe 21; when installing the connecting pipe assembly, at least part of the first guide protrusion 211 is inserted into the first guide groove 121, and then the buckle 13 is engaged with the clamping groove 212. The buckle 13 and the clamping groove 212 are assembled in cooperation, so that the joint 12 and the drain pipe 21 are locked, thereby realizing the connecting pipe assembly and the drainage structure, and preventing the connecting pipe assembly from falling out.

[0072] In one embodiment, the joint body has a first connection end 122 and a second connection end 123 that are arranged oppositely along its axial direction; the first guide groove 121 is arranged on the inner wall of the joint body, and the first guide groove 121 extends along the axial direction of the joint body. One end of the first guide groove 121 extends to the first connection end 122 of the joint body to form a first installation opening 124, so that the first guide protrusion 211 is inserted into the first guide groove 121 through the first installation opening 124. Specifically, when the connecting pipe assembly is installed on the drain pipe 21 of the drainage structure, the connecting pipe assembly is held and moved toward the drain pipe 21, so that at least part of the connecting pipe assembly is sleeved on the drain pipe 21. In the process of holding the connecting pipe assembly and moving it toward the drain pipe 21, the first guide protrusion 211 is inserted into the first guide groove 121 through the first installation opening 124. After the connecting pipe assembly is moved into place, the buckle 13 is clamped in the clamping groove 212, and the assembly of the two is completed at this time.

[0073] In one embodiment, the joint body includes a first side wall section 125, the inner wall of the first side wall section 125 is the bottom of the first guide groove 121; the first side wall section 125 has a first adjustment gap 126 and a second adjustment gap 127, the first adjustment gap 126 extends from the first connection end 122 toward the second connection end 123, the second adjustment gap 127 extends from the first connection end 122 toward the second connection end 123, and a first adjustment portion 128 is formed between the first adjustment gap 126 and the second adjustment gap 127, and the position of the first adjustment portion 128 is adjustable; wherein the buckle 13 is connected to the first adjustment portion 128. Such a setting realizes that the position of the buckle 13 can be adjusted, so that the buckle 13 is convenient for being stuck in the slot 212 or separated from the slot 212.

[0074] In another embodiment, the joint body has a first connection end 122 and a second connection end 123 that are arranged opposite to each other along its axial direction; the first guide groove 121 is arranged at the first connection end 122 and extends from the first connection end 122 toward the second connection end 123; the notch 129 of the first guide groove 121 is located at the first connection end 122, so that the first guide protrusion 211 is inserted into the first guide groove 121 through the notch 129. Specifically, when the connecting pipe assembly is installed on the drain pipe 21 of the drainage structure, the connecting pipe assembly is held and moved toward the drain pipe 21, so that at least part of the connecting pipe assembly is sleeved on the drain pipe 21. In the process of holding the connecting pipe assembly and moving it toward the drain pipe 21, the first guide protrusion 211 is inserted into the first guide groove 121 through the notch 129. After the connecting pipe assembly is moved into place, the buckle 13 is clamped in the clamping groove 212, and the assembly of the two is completed at this time.

[0075] In another embodiment, the joint body is an annular structure; the first guide groove 121 extends in the radial direction of the joint body, and the first guide groove 121 extends to the inner and outer side walls of the joint body; two first guide grooves 121 are provided on the joint body, and the two first guide grooves 121 are spaced apart in the circumferential direction of the joint 12, and a second adjustment portion 130 is formed between the two first guide grooves 121, and the position of the second adjustment portion 130 is adjustable; wherein the buckle 13 is connected to the second adjustment portion 130. Such a setting realizes that the position of the buckle 13 can be adjusted, so that the buckle 13 can be easily clamped in the clamping groove 212 or separated from the clamping groove 212.

[0076] In another embodiment, the cross section of the first guide groove 121 perpendicular to the radial direction of the joint body is rectangular, triangular, or trapezoidal.

[0077] In this embodiment, a handle 14 is provided on the buckle 13, and the handle 14 is provided on a side of the buckle 13 away from the axis of the joint body. In specific implementation, by pressing the handle 14, the buckle 13 can be separated from the slot 212, and then the connecting pipe assembly can be pulled out from the drainage structure.

[0078] In this embodiment, the connecting pipe assembly further includes a transition connecting pipe 15 and a sealing ring 16, and the connecting pipe is connected to the joint 12 through the transition connecting pipe 15; the sealing ring 16 is fixed between the joint 12 and the transition connecting pipe 15 along the axial direction of the transition connecting pipe 15, so that the sealing ring 16 seals between the connecting pipe assembly and the drain pipe 21. Among them, one end of the drain pipe 21 is inserted into the transition connecting pipe 15, and the end of the drain pipe 21 is located on the side of the sealing ring 16 away from the joint 12. Such a setting realizes the fixing of the sealing ring 16 and also realizes the sealing between the connecting pipe assembly and the drain pipe 21.

[0079] Optionally, the sealing ring 16 is made of hydrogenated nitrile butadiene rubber, which has good sealing performance, durability and long service life.

[0080] Optionally, the cross section of the sealing ring 16 is circular.

[0081] Optionally, the sealing ring 16 is an O-ring.

[0082] In this embodiment, a compression sheet 18 is provided between the sealing ring 16 and the joint 12 along the axial direction of the transition connecting pipe 15, so that the joint 12 can compress the sealing ring 16 through the compression sheet 18 to fix the sealing ring 16. The compression sheet 18 is used to compress the sealing ring 16 to prevent the sealing ring 16 from falling off.

[0083] Optionally, the sealing ring 16 is disposed on the first installation step 151 , and the pressing sheet 18 is disposed on the second installation step 152 . The second installation step 152 is located on a side of the first installation step 151 away from the connecting pipe.

[0084] In this embodiment, the transition connecting pipe 15 is provided with a mounting groove 153, and the joint 12 is provided with a mounting protrusion 17, and the mounting protrusion 17 is clamped in the mounting groove 153, so that the transition connecting pipe 15 and the joint 12 are fastened and locked, and then the sealing ring 16 can be compressed. Specifically, the mounting groove 153 and the mounting protrusion 17 are arranged in pairs; optionally, the mounting groove 153 and the mounting protrusion 17 are multiple pairs; wherein the multiple pairs include two pairs.

[0085] Specifically, an installation guide groove is provided on the transition connecting pipe 15, and the installation guide groove is provided on the inner wall of the transition connecting pipe 15, and the installation guide groove extends from the installation card groove 153 to one end of the transition connecting pipe 15; when the joint 12 is installed on the transition connecting pipe 15, the installation protrusion 17 on the joint 12 moves along the extension direction of the installation guide groove, and then is stuck in the installation card groove 153.

[0086] In this embodiment, in addition to providing installation guidance, the first guide groove 121 and the first guide protrusion 211 can also limit the circumferential direction of the connector 12 and the drain pipe 21 to prevent relative rotation between the two. Furthermore, there is one buckle 13, and correspondingly, one buckle 212 is also provided. By providing one buckle 13 and cooperating with the circumferential limiting function of the first guide groove 121 and the first guide protrusion 211, the stability of the clamping connection between the connector 12 and the drain pipe 21 can be ensured, and there is no need to provide multiple buckles 13, thereby avoiding the inconvenience of installation caused by providing multiple buckles 13.

[0087] The present invention further provides a drainage structure, including a drainage pipe 21 , on which a first guide protrusion 211 is provided; and / or on which a second guide groove is provided.

[0088] In this embodiment, a clamping groove 212 is provided on the drain pipe 21 .

[0089] In one embodiment, the drain pipe 21 has a connection end 213 and a free end 214 that are arranged oppositely along its extension direction, and the connection end 213 is used to connect with at least part of the component to be drained; the first guide protrusion 211 has a first end and a second end that are arranged oppositely along the extension direction of the drain pipe 21, and the first end of the first guide protrusion 211 is located on a side of the second end of the first guide protrusion 211 close to the free end 214; wherein the clamping groove 212 is arranged on the first guide protrusion 211, and the clamping groove 212 is arranged at a distance from the first end of the first guide protrusion 211. Specifically, in this embodiment, the first end of the first guide protrusion 211 is provided with a first chamfer 30, and the buckle 13 is provided with a first rounded corner 40. When the connecting pipe assembly is assembled on the drainage structure, the first rounded corner 40 of the buckle 13 moves along the first chamfer 30 to play an assembly guide role.

[0090] In another embodiment, the drain pipe 21 has a connecting end 213 and a free end 214 that are relatively arranged along its extension direction, and the connecting end 213 is used to connect with at least part of the component to be drained; wherein the first guide protrusion 211 is arranged on one side of the slot 212 close to the free end 214.

[0091] In another embodiment, there are two first guide protrusions 211 , and the two first guide protrusions 211 are arranged at intervals along the circumference of the drain pipe 21 .

[0092] In another embodiment, the cross section of the first guide protrusion 211 perpendicular to the radial direction of the drain pipe 21 is rectangular, triangular, or trapezoidal. Specifically, the smaller end of the triangle and trapezoid is arranged toward the connecting pipe assembly, which is convenient for guiding during installation.

[0093] In another embodiment, a protrusion 215 is provided on the drain pipe 21, a slot 212 is provided on the protrusion 215, a first guide protrusion 211 is connected to the first end of the protrusion 215 and is located between the protrusion 215 and the free end 214; at least a portion of the first end of the protrusion 215 is used to stop the first connection end 122 of the joint 12 of the connecting pipe assembly; wherein the protrusion 215 is an arc structure extending along the circumference of the drain pipe 21; or, the protrusion 215 is an annular structure provided along the circumference of the drain pipe 21. The provision of the protrusion 215 serves to limit the axial position of the connecting pipe assembly, further realizing the reliability of the connection between the connecting pipe assembly and the drain structure. wherein, when the protrusion 215 is an annular structure, the reliability of the connection between the connecting pipe assembly and the drain structure can be further ensured.

[0094] Specifically, a second chamfer 50 is provided at the first end of the protrusion 215. When the connecting pipe assembly is assembled on the drainage structure, the buckle 13 moves along the second chamfer 50 to serve as an assembly guide.

[0095] Specifically, the first end of the protrusion 215 has a stop surface 216, and the stop surface 216 is used to stop the first connection end 122 of the joint 12 of the connecting pipe assembly.

[0096] The present invention also provides an air-conditioning indoor unit, comprising: a connecting pipe assembly in the above-mentioned embodiment; a drainage structure in the above-mentioned embodiment, the drainage structure being used to discharge condensed water generated by the air-conditioning indoor unit; during the assembly process of the connecting pipe assembly and the drainage structure, the connecting pipe assembly and the drainage structure are guided and installed by a first guide protrusion 211 and a first guide groove 121; and / or, the connecting pipe assembly and the drainage structure are guided and installed by a second guide protrusion and a second guide groove so that the connecting pipe assembly is clamped with the drainage structure.

[0097] In the first embodiment, the different structures of the first embodiment from the second embodiment and the third embodiment are: the joint body has a first connecting end 122 and a second connecting end 123 that are relatively arranged along its axial direction; the first guide groove 121 is arranged on the inner wall of the joint body, and the first guide groove 121 extends along the axial direction of the joint body, and one end of the first guide groove 121 extends to the first connecting end 122 of the joint body to form a first installation port 124, so that the first guide protrusion 211 can be inserted into the first guide groove 121 through the first installation port 124. The joint body includes a first side wall section 125, the inner wall of the first side wall section 125 is the bottom of the first guide groove 121; the first side wall section 125 has a first adjustment gap 126 and a second adjustment gap 127, the first adjustment gap 126 extends from the first connection end 122 toward the second connection end 123, and the second adjustment gap 127 extends from the first connection end 122 toward the second connection end 123, and a first adjustment portion 128 is formed between the first adjustment gap 126 and the second adjustment gap 127, and the position of the first adjustment portion 128 is adjustable; wherein, the buckle 13 is connected to the first adjustment portion 128. The drain pipe 21 has a connection end 213 and a free end 214 which are arranged oppositely along its extension direction, and the connection end 213 is used to connect with at least part of the component to be drained; the first guide protrusion 211 has a first end and a second end which are arranged oppositely along the extension direction of the drain pipe 21, and the first end of the first guide protrusion 211 is located on a side of the second end of the first guide protrusion 211 close to the free end 214; wherein the clamping groove 212 is arranged on the first guide protrusion 211, and the clamping groove 212 is arranged at a distance from the first end of the first guide protrusion 211. Specifically, in this embodiment, the first end of the first guide protrusion 211 is provided with a first chamfer 30, and the buckle 13 is provided with a first rounded corner 40. When the connecting pipe assembly is assembled on the drainage structure, the first rounded corner 40 of the buckle 13 moves along the first chamfer 30 to play an assembly guide role.

[0098] In the second embodiment, the structure different from that in the first embodiment is as follows: the joint body has a first connecting end 122 and a second connecting end 123 arranged opposite to each other along its axial direction; the first guide groove 121 is arranged at the first connecting end 122 and extends from the first connecting end 122 toward the second connecting end 123, and the notch 129 of the first guide groove 121 is located at the first connecting end 122, so that the first guide protrusion 211 is inserted into the first guide groove 121 through the notch 129. The joint body is an annular structure; the first guide groove 121 extends along the radial direction of the joint body, and the first guide groove 121 extends to the inner side wall and the outer side wall of the joint body; two first guide grooves 121 are arranged on the joint body, and the two first guide grooves 121 are arranged at intervals along the circumferential direction of the joint 12, and a second adjustment portion 130 is formed between the two first guide grooves 121, and the position of the second adjustment portion 130 is adjustable; wherein the buckle 13 is connected to the second adjustment portion 130. The cross section of the first guide groove 121 perpendicular to the radial direction of the joint body is rectangular. The drain pipe 21 has a connecting end 213 and a free end 214 which are arranged opposite to each other along its extension direction. The connecting end 213 is used to connect with at least part of the component to be drained. The first guide protrusion 211 is arranged on the side of the clamping groove 212 close to the free end 214. There are two first guide protrusions 211, and the two first guide protrusions 211 are arranged at intervals along the circumference of the drain pipe 21. The cross section of the first guide protrusion 211 perpendicular to the radial direction of the drain pipe 21 is rectangular. The drain pipe 21 is provided with a protrusion 215, the clamping groove 212 is provided on the protrusion 215, the first guide protrusion 211 is connected to the first end of the protrusion 215 and is located between the protrusion 215 and the free end 214. At least part of the first end of the protrusion 215 is used to stop the first connecting end 122 of the joint 12 of the connecting pipe assembly. The protrusion 215 is an arc-shaped structure extending along the circumference of the drain pipe 21. The first end of the protrusion 215 is provided with a second chamfer 50. When the connecting pipe assembly is assembled on the drainage structure, the buckle 13 moves along the second chamfer 50 to serve as an assembly guide. The first end of the protrusion 215 has a stop surface 216, which is used to stop the first connection end 122 of the joint 12 of the connecting pipe assembly.

[0099] In the third embodiment, compared with the second embodiment, the different structures are: the cross section of the first guide groove 121 perpendicular to the radial direction of the joint body is triangular. The cross section of the first guide protrusion 211 perpendicular to the radial direction of the drain pipe 21 is triangular. The protrusion 215 is an annular structure arranged along the circumference of the drain pipe 21.

[0100] It should be noted that, except for the above-mentioned different structures, other structures in the three embodiments are the same.

[0101] Specifically, the connecting pipe assembly and the drainage structure are applicable to all wall-mounted air conditioner indoor unit products.

[0102] The technical problems solved by this application are: solving the problem of material versatility and standardization: the new structure of the connecting pipe assembly and the drainage structure have good versatility and can be suitable for all models of air-conditioning indoor units; solving the problem of the difficulty in assembling the original drainage pipe: the new connecting pipe assembly and the drainage structure are simple to assemble, easy to operate, have high production efficiency, low labor intensity, and are easy to realize assembly automation; solving the quality problems existing in the assembly of the original drainage pipe: the new structure of the connecting pipe assembly and the drainage structure are easy to install and there are no quality risks.

[0103] The beneficial effects of this application are: improving product production and assembly efficiency and reducing labor intensity; ensuring product quality consistency and stability; and laying the foundation for automation of the assembly process.

[0104] From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:

[0105] The joint 12 of the connecting pipe assembly of the present invention is used to be clamped with the drain pipe 21 of the drainage structure so that the liquid discharged from the drain pipe 21 can be discharged from the connecting pipe through the connecting pipe assembly; when the connecting pipe assembly is installed on the drain pipe 21, the connecting pipe assembly is guided by the first guide protrusion 211 and the first guide groove 121 so that the first guide protrusion 211 moves along the extension direction of the first guide groove 121; and / or, the connecting pipe assembly is guided by the second guide protrusion and the second guide groove so that the second guide protrusion moves along the extension direction of the second guide groove; thereby ensuring the circumferential alignment of the connecting pipe assembly and the drain pipe 21, facilitating the clamping of the two, and solving the problem that the connecting pipe assembly is inconvenient to assemble.

[0106] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein, for example. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0107] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0108] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. 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

1. A connecting pipe assembly, characterized in that: It comprises a connecting pipe and a joint (12) connected to the connecting pipe, wherein the joint (12) is used for clamping with a drainage pipe (21) of a drainage structure; The joint (12) is provided with a first guide groove (121), the first guide groove (121) is adapted to a first guide protrusion (211) on the drain pipe (21), and at least a portion of the first guide protrusion (211) is arranged in the first guide groove (121), so as to provide guidance through the first guide protrusion (211) and the first guide groove (121) when the joint (12) and the drain pipe (21) are clamped together; and / or The joint (12) is provided with a second guide protrusion, the second guide protrusion being adapted to fit with a second guide groove on the drain pipe (21), and at least a portion of the second guide protrusion being arranged in the second guide groove so as to provide guidance through the second guide protrusion and the second guide groove when the joint (12) and the drain pipe (21) are engaged.

2. The connecting pipe assembly according to claim 1, characterized in that: The joint (12) comprises a joint body and a buckle (13) connected to the joint body, and the first guide groove (121) is arranged on the joint body; the joint body is used to be sleeved on the drain pipe (21), and the buckle (13) is used to be buckled with the buckle (212) on the drain pipe (21); when the connecting pipe assembly is installed, the buckle (13) is buckled with the buckle (212) after at least part of the first guide protrusion (211) is inserted into the first guide groove (121).

3. The connecting pipe assembly according to claim 2, characterized in that: The joint body has a first connecting end (122) and a second connecting end (123) which are arranged opposite to each other along its axial direction; the first guide groove (121) is arranged on the inner wall of the joint body, and the first guide groove (121) extends along the axial direction of the joint body, and one end of the first guide groove (121) extends to the first connecting end (122) of the joint body to form a first installation opening (124), so that the first guide protrusion (211) can be inserted into the first guide groove (121) through the first installation opening (124).

4. The connecting pipe assembly according to claim 3, characterized in that: The joint body comprises a first side wall section (125), and the inner wall of the first side wall section (125) is the bottom of the first guide groove (121); The first side wall section (125) has a first adjustment gap (126) and a second adjustment gap (127), the first adjustment gap (126) extends from the first connection end (122) toward the second connection end (123), the second adjustment gap (127) extends from the first connection end (122) toward the second connection end (123), a first adjustment portion (128) is formed between the first adjustment gap (126) and the second adjustment gap (127), and the position of the first adjustment portion (128) is adjustable; Wherein, the buckle (13) is connected to the first adjusting portion (128).

5. The connecting pipe assembly according to claim 2, characterized in that: The joint body has a first connecting end (122) and a second connecting end (123) arranged opposite to each other along its axial direction; the first guide groove (121) is arranged at the first connecting end (122) and extends from the first connecting end (122) toward the second connecting end (123); the notch (129) of the first guide groove (121) is located at the first connecting end (122) so that the first guide protrusion (211) can be inserted into the first guide groove (121) through the notch (129).

6. The connecting pipe assembly according to claim 5, characterized in that: The joint body is an annular structure; the first guide groove (121) extends along the radial direction of the joint body, and the first guide groove (121) extends to the inner side wall and the outer side wall of the joint body; The joint body is provided with two first guide grooves (121), the two first guide grooves (121) are arranged at intervals along the circumferential direction of the joint (12), a second adjustment portion (130) is formed between the two first guide grooves (121), and the position of the second adjustment portion (130) is adjustable; Wherein, the buckle (13) is connected to the second adjusting portion (130).

7. The connecting pipe assembly according to claim 5, characterized in that: The cross section of the first guide groove (121) perpendicular to the radial direction of the joint body is rectangular, triangular, or trapezoidal.

8. The connecting pipe assembly according to any one of claims 2 to 7, characterized in that: The buckle (13) is provided with a handle (14), and the handle (14) is arranged on a side of the buckle (13) away from the axis of the joint body.

9. The connecting pipe assembly according to any one of claims 1 to 7, characterized in that: The connecting pipe assembly further comprises a transition connecting pipe (15) and a sealing ring (16), and the connecting pipe is connected to the joint (12) via the transition connecting pipe (15); The sealing ring (16) is fixed between the joint (12) and the transition connecting pipe (15) along the axial direction of the transition connecting pipe (15), so that the sealing ring (16) seals between the connecting pipe assembly and the drain pipe (21).

10. A drainage structure, characterized in that: Applicable to the connecting pipe assembly according to any one of claims 1 to 9, the drainage structure comprises a drainage pipe (21), and the drainage pipe (21) is provided with a first guide protrusion (211); and / or The drainage pipe (21) is provided with a second guide groove.

11. The drainage structure according to claim 10, characterized in that: The drainage pipe (21) is provided with a clamping groove (212).

12. The drainage structure according to claim 11, characterized in that: The drain pipe (21) has a connecting end (213) and a free end (214) arranged opposite to each other along its extension direction, and the connecting end (213) is used to be connected to at least part of the component to be drained; the first guide protrusion (211) has a first end and a second end arranged opposite to each other along the extension direction of the drain pipe (21), and the first end of the first guide protrusion (211) is located on a side of the second end of the first guide protrusion (211) close to the free end (214); Wherein, the clamping slot (212) is arranged on the first guide protrusion (211), and the clamping slot (212) is spaced apart from the first end of the first guide protrusion (211).

13. The drainage structure according to claim 11, characterized in that: The drainage pipe (21) has a connecting end (213) and a free end (214) arranged opposite to each other along its extension direction, and the connecting end (213) is used to be connected to at least part of the component to be drained; Wherein, the first guide protrusion (211) is arranged on a side of the clamping slot (212) close to the free end (214).

14. The drainage structure according to claim 13, characterized in that: There are two first guide protrusions (211), and the two first guide protrusions (211) are arranged at intervals along the circumference of the drain pipe (21).

15. The drainage structure according to claim 13, characterized in that: The cross section of the first guide protrusion (211) perpendicular to the radial direction of the drain pipe (21) is rectangular, triangular, or trapezoidal.

16. The drainage structure according to claim 13, characterized in that: The drainage pipe (21) is provided with a protrusion (215), the clamping groove (212) is provided on the protrusion (215), the first guide protrusion (211) is connected to the first end of the protrusion (215) and is located between the protrusion (215) and the free end (214); at least a part of the first end of the protrusion (215) is used to stop the first connection end (122) of the joint (12) of the connecting pipe assembly; Wherein, the protrusion (215) is an arc-shaped structure extending along the circumference of the drain pipe (21); or The raised portion (215) is an annular structure arranged along the circumference of the drain pipe (21).

17. An air conditioner indoor unit, characterized in that: include: The connecting pipe assembly according to any one of claims 1 to 9; The drainage structure according to any one of claims 10 to 16, wherein the drainage structure is used to discharge condensed water generated by the air conditioner indoor unit; During the assembly process of the connecting pipe assembly and the drainage structure, the connecting pipe assembly and the drainage structure are guided and installed by the first guide protrusion (211) and the first guide groove (121); and / or, the connecting pipe assembly and the drainage structure are guided and installed by the second guide protrusion and the second guide groove, so that the connecting pipe assembly is snap-fitted with the drainage structure.

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