CN216592348U - Pipeline device and air conditioner with same - Google Patents

Abstract

The utility model discloses a pipeline device and an air conditioner with the same. The pipe device comprises: a first tubing assembly, the first tubing assembly comprising: the device comprises a first pipeline and a first connecting sleeve, wherein the first connecting sleeve is arranged at the end part of the first pipeline, and a collecting space is formed between the first connecting sleeve and the first pipeline; a second pipeline assembly, the second pipeline assembly comprising: a second pipe fixed by welding with the first connecting sleeve, wherein the collecting space corresponds to a welding area of the second pipe and the first connecting sleeve, so as to collect solder dropping from the welding area during welding. According to the pipeline device, the collection space corresponding to the welding area is arranged, so that the redundant solder at the welding area can be ensured to drip into the collection space, the solder is prevented from further dripping onto the lower part, and the inner sliding part of the lower part is further prevented from being blocked or generating abnormal sound.

Description

Pipeline device and air conditioner with same

Technical Field

The utility model relates to the technical field of air conditioners, in particular to a pipeline device and an air conditioner with the pipeline device.

Background

In the related art, when two steel pipes are welded and fixed, redundant welding flux at the welding position drops on the inner wall of the steel pipe and slides down like water drops, and the sliding welding flux enters parts such as a four-way valve and the like, so that the sliding parts in the parts are easily blocked or abnormal sound is easily caused.

SUMMERY OF THE UTILITY MODEL

The present invention aims to solve at least to some extent one of the above-mentioned technical problems of the prior art. Therefore, the utility model provides a pipeline device to prevent solder from sliding off along the inner wall of a steel pipe.

The utility model also provides an air conditioner with the pipeline device.

The piping device according to an embodiment of the present invention includes: a first tubing assembly, the first tubing assembly comprising: the device comprises a first pipeline and a first connecting sleeve, wherein the first connecting sleeve is arranged at the end part of the first pipeline, and a collecting space is formed between the first connecting sleeve and the first pipeline; a second tubing assembly, the second tubing assembly comprising: a second pipe fixed by welding with the first connecting sleeve, wherein the collecting space corresponds to a welding area of the second pipe and the first connecting sleeve so as to be suitable for collecting solder dropped from the welding area during welding.

According to the pipeline device provided by the embodiment of the utility model, the collection space corresponding to the welding area is arranged, so that the redundant solder at the welding area can be ensured to drip into the collection space, the solder is prevented from further dripping onto the lower part, and the internal sliding part of the lower part is further prevented from being blocked or generating abnormal sound.

According to some embodiments of the utility model, the first connecting sleeve is sleeved outside the first pipeline and the second pipeline.

According to some embodiments of the utility model, a side of the collecting space facing the welding zone is open to form a collecting opening, and another side of the collecting space opposite to the collecting opening is closed.

Further, the first pipeline and the first connecting sleeve are nested and welded and fixed, and the other side of the collecting space is sealed through welding of the first pipeline and the first connecting sleeve.

According to some embodiments of the utility model, the collection space is configured as an annular space.

According to some embodiments of the utility model, the portion of the first conduit extending into the first coupling sleeve comprises: the collecting device comprises a fixing section and a collecting section, wherein the fixing section is fixed with the inner wall surface of the first connecting sleeve, the collecting section is connected to one end, close to the second pipeline, of the fixing section, and the collecting space is formed between the collecting section and the first connecting sleeve.

Further, the outer diameter of the collecting section is smaller than the outer diameter of the fixing section.

Still further, the inner diameter of the harvesting section is the same as the inner diameter of the fixation section.

According to some embodiments of the utility model, the first end of the harvesting section is proximate to the weld zone and the second end of the harvesting section is distal from the weld zone, the outer diameter of the harvesting section being constant in a direction from the first end to the second end of the harvesting section.

According to some embodiments of the utility model, the first end of the harvesting section is proximate to the weld zone and the second end of the harvesting section is distal from the weld zone, the harvesting section having an outer diameter that increases in a direction from the first end to the second end of the harvesting section.

According to some embodiments of the utility model, the first end of the harvesting section is close to the welding zone and the second end of the harvesting section is distant from the welding zone, the harvesting section comprising a plurality of sections which are stepped, the smaller the outer diameter of the section of the plurality of sections which is closer to the second line, the larger the outer diameter of the section which is further away from the second line.

According to some embodiments of the utility model, the material of the first coupling sleeve comprises copper and the material of the first pipe comprises iron.

According to some embodiments of the utility model, the end faces of the second and first pipe facing each other are in contact within the first coupling sleeve.

According to some embodiments of the utility model, the end faces of the second and first conduits facing each other are axially spaced apart within the first coupling sleeve.

According to some embodiments of the utility model, the first coupling sleeve is provided with a first protrusion, which locates a free end face of the second pipeline; and/or a second convex part is arranged on the second pipeline and used for positioning the free end face of the first connecting sleeve.

According to some embodiments of the utility model, the collection space is configured as a constant cross-section collection space.

According to some embodiments of the utility model, the collecting space is configured as a stepped multi-stage collecting space, and a volume of one stage of the collecting space close to the welding area is larger than a volume of another stage of the collecting space far from the welding area.

According to some embodiments of the utility model, the collection space is configured as a cross-sectional gradual collection space, and a cross-sectional area of an end close to the weld zone is larger than a cross-sectional area of an end far from the weld zone.

According to another aspect of the utility model, the air conditioner comprises the pipeline device.

The advantages of the air conditioner and the pipeline device are the same compared with the prior art, and the description is omitted.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the utility model.

Drawings

FIG. 1 is a schematic view of a line set according to a first embodiment of the utility model;

FIG. 2 is a schematic view of a line set according to a second embodiment of the utility model;

FIG. 3 is a schematic view of a line set according to a third embodiment of the utility model;

FIG. 4 is a schematic view of a first pipeline assembly of the pipeline apparatus according to the first embodiment of the present invention;

FIG. 5 is a schematic view of a first tubing assembly of a tubing set according to a second embodiment of the present invention;

FIG. 6 is a schematic view of a first pipeline assembly of a pipeline apparatus according to a third embodiment of the utility model;

FIG. 7 is a schematic view of a line set according to a fourth embodiment of the utility model;

FIG. 8 is a schematic view of a line set according to a fifth embodiment of the utility model;

FIG. 9 is a schematic view of a line set according to a sixth embodiment of the utility model;

FIG. 10 is a schematic view of a first pipeline assembly of a pipeline apparatus according to a fourth embodiment of the utility model;

FIG. 11 is a schematic view of a first pipeline assembly of a pipeline apparatus according to a fifth embodiment of the present invention;

FIG. 12 is a schematic view of a first pipeline assembly of a pipeline apparatus according to a sixth embodiment of the utility model;

FIG. 13 is a schematic view of a line set according to a seventh embodiment of the utility model;

FIG. 14 is a schematic view of a line set according to an eighth embodiment of the utility model;

FIG. 15 is a schematic view of a line set according to a ninth embodiment of the utility model;

FIG. 16 is a schematic view of a first pipeline assembly of the pipeline apparatus according to a seventh embodiment of the present invention;

FIG. 17 is a schematic view of a first pipeline assembly of a pipeline apparatus according to an eighth embodiment of the utility model;

FIG. 18 is a schematic view of a first pipeline assembly of a pipeline apparatus according to a ninth embodiment of the utility model;

FIG. 19 is a schematic view of a line set according to a tenth embodiment of the utility model;

FIG. 20 is a schematic view of a line set according to an eleventh embodiment of the utility model;

FIG. 21 is a schematic view of a line set according to a twelfth embodiment of the utility model;

FIG. 22 is a schematic view of a line set according to a thirteenth embodiment of the utility model;

FIG. 23 is a schematic view of a line set according to a fourteenth embodiment of the utility model;

FIG. 24 is a schematic view of a line set according to a fifteenth embodiment of the utility model;

FIG. 25 is a schematic view of a first circuit according to one embodiment of the utility model;

FIG. 26 is a schematic view of a first circuit according to another embodiment of the utility model;

FIG. 27 is a schematic view of a first circuit according to yet another embodiment of the utility model.

Reference numerals:

a first pipe assembly 10, a first pipe 1, a fixed section 11, a collecting section 12, a first connecting sleeve 2, a first projection 21, a second pipe 3, a second projection 31, a collecting space 4, a welding zone 5, a connecting zone 6.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the utility model and are not to be construed as limiting the utility model.

In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically connected, electrically connected or can communicate with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

A piping device according to an embodiment of the present invention will be described in detail with reference to fig. 1 to 27.

Referring to fig. 1 to 3, 7 to 9, 13 to 15, and 19 to 24, a piping apparatus according to an embodiment of the present invention may include: a first conduit assembly 10 and a second conduit assembly.

As shown in fig. 1-24, the first pipeline assembly 10 may include: a first connecting sleeve 2 and a first pipeline 1, the first connecting sleeve 2 is located at the end of the first pipeline 1, as in the embodiment shown in fig. 1-24, the first connecting sleeve 2 is arranged at the upper end of the first pipeline 1, and the first connecting sleeve 2 and the first pipeline 1 are connected at a connecting area 6, optionally, the first connecting sleeve 2 and the first pipeline 1 can be fixedly connected by welding, that is, the connecting area 6 can be formed by welding.

Referring to fig. 1 to 24, a collecting space 4 is formed between the first coupling sleeve 2 and the first pipe 1.

The second pipe assembly may be located above the first pipe assembly 10, and may include: the second pipeline 3, the first connecting sleeve 2 and the second pipeline 3 are suitable for realizing fixed connection through welding, a welding area 5 is formed at the welding position of the first connecting sleeve 2 and the second pipeline 3, and the collecting space 4 is suitable for corresponding to the welding area 5, so that the welding materials dropping from the welding area 5 can be collected during welding. In other words, the collecting space 4 is disposed right below the welding area 5, and when the welding gun performs a welding operation in the welding area 5, the excessive solder at the welding area 5 will drip into the collecting space 4, so as to prevent the solder from further dripping onto the lower four-way valve and other parts, thereby further preventing the internal sliding parts of the four-way valve and other parts from being stuck or generating abnormal noise, and ensuring that the interior of the pipeline device is relatively clean.

With reference to fig. 1-3, 7-9, 13-15, 19-24, the first coupling sleeve 2 comprises a second line connection portion adapted to be fixedly connected to the second line 3 in the welding zone 5 and a first line connection portion adapted to be fixedly connected to the first line 1 in the connection zone 6, a collecting space 4 being formed between the second line connection portion and the first line connection portion in the axial direction of the first coupling sleeve 2.

According to the pipeline device provided by the embodiment of the utility model, the collection space 4 corresponding to the welding area 5 is arranged, so that the redundant solder at the welding area 5 can be ensured to drip into the collection space 4, the solder is prevented from further dripping onto the lower part, and the internal sliding part of the lower part is further prevented from being blocked or generating abnormal sound.

In some embodiments of the present invention, referring to fig. 1 to 3, 7 to 9, 13 to 15, and 19 to 24, the first connecting sleeve 2 is adapted to be sleeved on the outer peripheries of the first pipeline 1 and the second pipeline 3, that is, in the axial direction of the pipeline device, the first connecting sleeve 2 at least partially overlaps the first pipeline 1, and the first connecting sleeve 2 at least partially overlaps the second pipeline 3, so as to protect the ends of the first pipeline 1 and the second pipeline 3, and also to prevent the ends of the first pipeline 1 and the second pipeline 3 from being exposed, thereby improving the appearance of the pipeline device.

In some embodiments of the utility model, the side of the collecting space 4 facing the soldering area 5 is open to form a collecting opening, as in the embodiment shown in fig. 1-24, the soldering area 5 is located above the collecting space 4, the upper side of the collecting space 4 is open, and the open collecting opening thereof is opposite to the soldering area 5, so as to collect the solder dripping from the soldering area 5.

The other side of the collecting space 4 opposite to the collecting opening is closed, as in the embodiment shown in fig. 1-24, the lower side of the collecting space 4 is closed, so that the collecting space 4 is constructed as an open-sided, closed-sided storage space, whereby it is possible to avoid solder falling out from the bottom of the collecting space 4, while facilitating storage of solder.

Further, the first pipeline 1 may be arranged in a nested manner with the first connection sleeve 2, i.e. the first connection sleeve 2 at least partially overlaps the first pipeline 1, with reference to the embodiment shown in fig. 1-24, the first pipeline 1 partially extends into the first connection sleeve 2, and the length of the first pipeline 1 extending into the first connection sleeve 2 is L6, L6 > 0. The first pipeline 1 is suitable for being welded and fixed with the first connecting sleeve 2, and the welding position of the first pipeline 1 and the first connecting sleeve 2 forms a connecting area 6, and the connecting area 6 can seal the other side of the collecting space 4 opposite to the collecting opening, in other words, the connecting area 6 can seal the lower side of the collecting space 4, so that the collecting space 4 is constructed into a storage space with an open upper side and a closed lower side, and the solder is convenient to store.

Optionally, the first pipeline 1 and the first connecting sleeve 2 can be welded and fixed by tunnel furnace brazing.

In some embodiments of the utility model, the collecting space 4 may be an annular space. Specifically, the annular space surrounds the axial direction of the first pipe 1, and the annular space is arranged around the whole circle, so that the collecting space 4 can collect the solder dropping from the welding area 5 in the whole circle direction, the reliability of the solder collecting work is ensured to be high, and the probability of the solder dropping below the first pipe 1 is reduced.

In some embodiments of the present invention, the portion of the first pipeline 1 extending into the first connection sleeve 2 may include: the length of the collecting section 12 is L7, L7 is greater than 0, the length of the fixing section 11 is L1, L1 is greater than 0, and the length L6 of the first pipeline 1 extending into the first connecting sleeve 2 is L7+ L1. The fixing section 11 is adapted to be fixedly connected with an inner wall surface of the first connecting sleeve 2, specifically, a connection area 6 is formed between the fixing section 11 and the inner wall surface of the first connecting sleeve 2, and a welding gun performs welding at the connection area 6 to complete the fixing of the first connecting sleeve 2 and the fixing section 11. The length of the joint region 6 may be equal to the length of the fixed segment 11, i.e., both L1, thereby maximizing the degree of fastening of the first joint sleeve 2 and the fixed segment 11. The collecting section 12 is connected to one end of the fixed section 11 close to the second pipeline 3, as shown in fig. 1-24, the collecting section 12 is connected to the upper end of the fixed section 11, the outer annular surface of the collecting section 12 is separated from the inner wall surface of the first connecting sleeve 2 to form the collecting space 4 between the outer annular surface of the collecting section 12 and the inner wall surface of the first connecting sleeve 2, the fixed section 11 and the connecting region 6 are suitable for sealing the bottom of the collecting space 4, and the length of the collecting space 4 is equal to that of the collecting section 12, and is L7.

Further, referring to fig. 1 to 27, the collecting section 12 has an outer diameter smaller than that of the fixing section 11. Specifically, in the embodiment shown in fig. 1, 4, 7, 10, 13, 16, 25, the outer diameter of the collecting section 12 is d2, the outer diameter of the fixing section 11 is d1, and d2 < d1, so that the outer annular surface of the fixing section 11 is fixedly connected with the inner wall surface of the first connecting sleeve 2, and the outer annular surface of the collecting section 12 is separated from the inner wall surface of the first connecting sleeve 2 to form the collecting space 4.

Further, the inner diameter of the fixed section 11 is the same as the inner diameter of the collecting section 12. Referring to fig. 25 to 27, the inner diameter of the fixed section 11 and the inner diameter of the collecting section 12 are both d3, which facilitates the processing of the inner annular surface of the first pipeline 1.

In the present invention, the expressions "the inner diameters are equal", "the inner diameters are the same", and the like include the completely equal or approximately equal cases, which are clearly distinguished from the case where the inner diameters are changed abruptly. That is, it is within the scope of the present invention for the inner diameters to be exactly equal or approximately equal.

The part of the first pipeline 1 outside the first connecting sleeve 2 is adapted to be connected with the fixed section 11, and the part of the first pipeline 1 outside the first connecting sleeve 2 is adapted to be the same as the outer diameter and the inner diameter of the fixed section 11, thereby facilitating the simplification of the processing procedure of the first pipeline 1.

In some embodiments of the present invention, referring to fig. 1, 4, 7, 10, 13, 16, 19, 22, 25, the first end of the harvesting section 12 is proximate the weld zone 5 and the second end of the harvesting section 12 is distal from the weld zone 5, i.e., the upper end of the harvesting section 12 is proximate the weld zone 5 and the lower end of the harvesting section 12 is distal from the weld zone 5. The outer diameter of the harvesting section 12 remains constant in the direction from the first end to the second end of the harvesting section 12, i.e. from the upper end to the lower end of the harvesting section 12, the harvesting section 12 having a length L7.

In the present invention, the expressions "the outer diameters are equal", "the outer diameters are the same", "the outer diameters are not changed" and the like include the completely equal or approximately equal cases, which is clearly distinguished from the case where the outer diameters are changed abruptly. That is, the outer diameters are all equal or approximately equal within the scope of the present invention.

In some embodiments of the present invention, as shown with reference to fig. 3, 6, 9, 12, 15, 18, 21, 24, 27, the first end of the harvesting section 12 is proximate the weld zone 5 and the second end of the harvesting section 12 is distal from the weld zone 5, i.e., the upper end of the harvesting section 12 is proximate the weld zone 5 and the lower end of the harvesting section 12 is distal from the weld zone 5. The outer diameter of the harvesting section 12 increases in the direction from the first end to the second end of the harvesting section 12, i.e. from the upper end to the lower end of the harvesting section 12, the length of the harvesting section 12 is L5, L5 > 0. The outer diameter of the upper end of the collecting section 12 is d6, the outer diameter of the lower end of the collecting section 12 is d1, and d6 is less than d 1.

In some embodiments of the present invention, as shown with reference to fig. 2, 5, 8, 11, 14, 17, 20, 23, 26, the first end of the harvesting section 12 is proximate the weld zone 5 and the second end of the harvesting section 12 is distal from the weld zone 5, i.e., the upper end of the harvesting section 12 is proximate the weld zone 5 and the lower end of the harvesting section 12 is distal from the weld zone 5. The collecting section 12 includes a plurality of stages having a stepped shape, and the outer diameter of a stage closer to the second pipe 3 is smaller and the outer diameter of a stage farther from the second pipe 3 is larger in the plurality of stages. That is, the outer diameters of the plurality of stages increase stepwise in a direction from the upper end to the lower end of the collecting stage 12. For example, the collecting section 12 includes a first section 122 and a second section 121, the first section 122 is located above the second section 121, the outer diameter of the first section 122 is d5, the outer diameter of the second section 121 is d4, the length of the first section 122 is L4, L4 > 0, the length of the second section 121 is L3, L3 > 0, where d5 < d4, and the relationship between L4 and L3 may be L4 > L3, L4 < L3, and L4 ═ L3.

In some embodiments of the utility model, the material of the first connecting sleeve 2 comprises copper. Specifically, the main material of the first connecting sleeve 2 includes copper, and may also include other materials, of course, the first connecting sleeve 2 may also be pure copper, and for convenience of description, the first connecting sleeve 2 is referred to as a copper sleeve.

The material of the first pipe 1 comprises iron. Specifically, the main material of the first pipeline 1 includes iron, and may further include other materials, such as carbon, so that the first pipeline 1 is a steel pipe, and optionally, the first pipeline 1 is a stainless steel pipe. Of course, the first pipe 1 may also be a pure iron pipe.

According to the material characteristics, the thermal conductivity of copper is higher than that of iron, so that the thermal conductivity of copper is good, the thermal conductivity of steel (mainly including iron) is poor, after heating, the copper material is in a red-through state (namely, a high-temperature state) in the area near the heating point, while the steel material is in a red-through state only in the heating point, and the color of the steel material is still kept around the heating point. That is, the heat at the heating point of the copper material is easily diffused to the surroundings, so that the surroundings are all in a high temperature state, while the heat at the heating point of the steel material is difficult to diffuse to the surroundings, and the high temperature state is maintained only at the heating point. Therefore, when the first joint sleeve 2 and the second pipe 3 are welded at the weld zone 5, the first joint sleeve 2 is turned to be turned to red in the vicinity of the heating point, in other words, the welding heat generated when the first joint sleeve 2 and the second pipe 3 are welded at the weld zone 5 causes not only the weld zone 5 to be turned to red but also the lower portion of the first joint sleeve 2 to be turned to red. The excessive solder at the welding area 5 can downwards slide to the lower part of the first connecting sleeve 2, the lower part of the high-temperature first connecting sleeve 2 can adsorb at least part of the dropped solder, the solder which can not be adsorbed by the lower part of the first connecting sleeve 2 further drops into the collecting space 4, the solder is prevented from further dropping onto the parts such as the four-way valve below, and therefore the internal sliding parts of the parts such as the four-way valve are further prevented from being blocked or generating abnormal sound.

In some embodiments, the second pipeline 3 may be a stainless steel pipe, an iron pipe, a copper pipe, or the like.

In some embodiments of the present invention, referring to fig. 1-3, an end surface of the second pipe 3 facing the first pipe 1 is adapted to be in contact with an end surface of the first pipe 1 facing the second pipe 3, and the contact is located in the first coupling sleeve 2. In other words, the lower end face of the second pipe 3 is adapted to be brought into contact with the upper end face of the first pipe 1, so that the lower end of the collecting space 4 is closed by the connecting region 6, the upper end of the collecting space 4 is closed by the second pipe 3 and the welding region 5, and the solder dropped at the welding region 5 drops directly and completely into the collecting space 4 without entering the interior of the first pipe 1.

In some embodiments of the utility model, as shown with reference to fig. 7-9, 13-15, 19-24, an end face of the second pipe 3 facing the first pipe 1 is adapted to be spaced apart from an end face of the first pipe 1 facing the second pipe 3 in the axial direction of the first coupling sleeve 2, within the first coupling sleeve 2. In other words, the lower end face of the second pipe 3 is adapted to be spaced apart from the upper end face of the first pipe 1. As in the embodiment shown in fig. 19-24, the distance between the lower end of the second pipe 3 and the upper end of the first pipe 1 is L9, L9 > 0. When the first connecting sleeve 2 and the second pipeline 3 are welded in the welding area 5, the welding heat of the first connecting sleeve and the second pipeline can radiate to the collecting space 4, the lower end face of the second pipeline 3 is spaced from the upper end face of the first pipeline 1, a certain distance can be reserved between the collecting section 12 and the welding area 4, the radiation quantity of the welding heat of the welding area 5 to the collecting section 12 is reduced, and the connecting part of the collecting section 12 and the fixing section 11 is effectively prevented from being cracked due to heating.

In some embodiments of the present invention, as shown in fig. 7 to 18, the first coupling sleeve 2 is provided with a first protrusion 21, and the first protrusion 21 is used for positioning the free end surface of the second pipeline 3. Particularly, when connecting first pipeline subassembly 10 and second pipeline subassembly fixedly, earlier the cooperation of pegging graft with first adapter sleeve 2 and second pipeline 3 for the lower extreme of second pipeline 3 ends with the first convex part 21 of first adapter sleeve 2, thereby makes the relative position of first adapter sleeve 2 and second pipeline 3 accurate, carries out welding operation in weld zone 5 to first adapter sleeve 2 and second pipeline 3 again afterwards, and the positioning action of first convex part 21 makes welding position accurate. The first protrusion 21 is preferably sized to block the second conduit 3 from further insertion into the first coupling sleeve 2.

Since the lower end of the second pipeline 3 is nested inside the first connecting sleeve 2, the first protrusion 21 is provided on the inner wall surface of the first connecting sleeve 2, so that the first protrusion 21 positions the second pipeline 3 from inside the first connecting sleeve 2.

In some embodiments, not shown in the figures, the first projection 21 may be arranged on the outer wall surface of the first connection sleeve 2 when the first connection sleeve 2 is nested inside the second pipe 3, so that the first projection 21 locates the second pipe 3 from outside the first connection sleeve 2.

As in the embodiment shown in fig. 7-18, the first protrusion 21 is at a distance L8 from the upper end of the first pipe 1, L8 > 0. The distance between the lower end of the second pipeline 3 and the upper end of the first pipeline 1 is larger than L8.

Alternatively, in some embodiments, as shown with reference to fig. 7 to 12, the first protrusions 21 are configured as a plurality of first protrusions arranged at intervals in the circumferential direction of the first coupling sleeve 2. Optionally, a plurality of first bulges are uniformly arranged along the circumferential direction of the first connecting sleeve 2, so that when the end part of the second pipeline 3 is positioned, positioning points are uniformly distributed, and the positioning effect is better. Further, the first convex portion 21 can also block the excessive solder at the land 5, so that the solder is solidified more at the land 5, avoiding excessive waste of the solder.

In some embodiments, referring to fig. 13 to 18, the first protrusion 21 is configured as a first annular protrusion arranged in a full circle, and the first annular protrusion continuously protrudes in the circumferential direction of the first coupling sleeve 2, so that the end of the second pipeline 3 can be positioned in the full circle direction, and the positioning effect is better. In addition, the first annular bulges are arranged in a whole circle, and the redundant solder at the welding area 5 can be blocked, so that the solder is solidified at the welding area 5 more, and the excessive waste of the solder is avoided.

In some embodiments of the present invention, referring to fig. 19-24, the second pipeline 3 is provided with a second protrusion 31, and the second protrusion 31 is used for positioning the free end surface of the first connecting sleeve 2. Specifically, when connecting first pipeline subassembly 10 and second pipeline subassembly fixedly, earlier first connecting sleeve 2 and the cooperation of pegging graft of second pipeline 3 for the upper end and the second convex part 31 of first connecting sleeve 2 end, thereby make the relative position of first connecting sleeve 2 and second pipeline 3 accurate, again afterwards to first connecting sleeve 2 and second pipeline 3 carry out welding operation in weld zone 5, the positioning action of second convex part 31 makes welding position accurate. The second protrusion 31 is preferably sized to block the second conduit 3 from further insertion into the first coupling sleeve 2.

Since the lower end of the second pipe 3 is nested inside the first connecting sleeve 2, the second projection 31 is provided on the outer wall surface of the second pipe 3, so that the second projection 31 positions the first connecting sleeve 2 from outside the second pipe 3.

In some embodiments, not shown in the figures, when the first connecting sleeve 2 is nested inside the second pipe 3, the second protrusion 31 may be provided on the inner wall surface of the second pipe 3, so that the second protrusion 31 locates the first connecting sleeve 2 from inside the second pipe 3.

Alternatively, in some embodiments, as shown with reference to fig. 19 to 21, the second protrusion 31 is configured as a plurality of second protrusions, and the plurality of second protrusions are arranged at intervals in the circumferential direction of the second pipeline 3. Optionally, a plurality of second bulges are uniformly arranged along the circumferential direction of the second pipeline 3, so that when the end part of the first connecting sleeve 2 is positioned, positioning points are uniformly distributed, and the positioning effect is better.

In other embodiments, referring to fig. 22 to 24, the second protrusion 31 is configured as a second annular protrusion arranged in a full circle, and the second annular protrusion continuously protrudes in the circumferential direction of the second pipeline 3, so that the end of the first connecting sleeve 2 can be positioned in the full circle direction, and the positioning effect is better.

In some embodiments, not shown in the figures, the first connecting sleeve 2 is provided with a first projection 21 for positioning the second pipe 3, and the second pipe 3 is provided with a second projection 31 for positioning the first connecting sleeve 2.

In some embodiments of the utility model, the collection space 4 is formed as a uniform cross-section collection space, as shown with reference to fig. 1, 4, 7, 10, 13, 16, 19, 22, 25.

In some embodiments of the present invention, as shown with reference to fig. 2, 5, 8, 11, 14, 17, 20, 23, 26, the collecting space 4 is formed as a multi-stage collecting space, and the multi-stage collecting space 4 is in a stepped configuration. The volume of the first stage collecting space close to the welding area 5 is larger than that of the other stage collecting space far from the welding area 5, that is, the upper port of the collecting space 4 is larger, and the lower port of the collecting space 4 is smaller, so that the solder can more easily drop into the collecting space 4, and the solder can be conveniently collected.

In some embodiments of the present invention, as shown in fig. 3, 6, 9, 12, 15, 18, 21, 24, 27 with reference to fig. 3, 6, 15, 18, 21, 24, 27, the collecting space 4 is formed as a collecting space having a gradually-changed cross section, and a cross-sectional area of an end close to the soldering region 5 is larger than that of an end far from the soldering region 5, so that a cross-sectional area of an upper end of the collecting space 4 is larger and a cross-sectional area of a lower end of the collecting space 4 is smaller, whereby solder is more easily dropped into the collecting space 4 to facilitate collection of the solder.

According to another aspect of the present invention, an air conditioner includes the pipe device of the above embodiment. When the first pipeline assembly 10 and the second pipeline assembly of the pipeline device are welded in the welding area 5, redundant solder can be dripped in the collecting space 4, so that the solder is prevented from further dripping on parts below the pipeline device, the internal sliding parts of the parts below are prevented from being blocked or generating abnormal sound, and the service life of the air conditioner is prolonged.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example" or "some examples" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples described in this specification can be combined and combined by those skilled in the art.

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.

Claims (19)

1. A pipeline apparatus, comprising:

a first tubing assembly, the first tubing assembly comprising: the device comprises a first pipeline and a first connecting sleeve, wherein the first connecting sleeve is arranged at the end part of the first pipeline, and a collecting space is formed between the first connecting sleeve and the first pipeline;

a second tubing assembly, the second tubing assembly comprising: a second pipe fixed by welding with the first connecting sleeve, wherein the collecting space corresponds to a welding area of the second pipe and the first connecting sleeve so as to be suitable for collecting solder dropped from the welding area during welding.

2. The pipeline apparatus according to claim 1, wherein the first connecting sleeve is sleeved outside the first pipeline and the second pipeline.

3. Pipeline apparatus according to claim 1, wherein a side of the collecting space facing the weld zone is open to form a collecting opening, and the other side of the collecting space opposite the collecting opening is closed.

4. A pipeline apparatus according to claim 3, wherein the first pipeline is nested with and welded to the first connecting sleeve, and a closure is formed to the other side of the collecting space by welding the first pipeline to the first connecting sleeve.

5. The line set of claim 1 wherein the collection space is configured as an annular space.

6. The line set of claim 1, wherein the portion of the first line that extends into the first coupling sleeve comprises: the collecting device comprises a fixing section and a collecting section, wherein the fixing section is fixed with the inner wall surface of the first connecting sleeve, the collecting section is connected to one end, close to the second pipeline, of the fixing section, and the collecting space is formed between the collecting section and the first connecting sleeve.

7. The conduit device of claim 6, wherein the gathering section has an outer diameter that is smaller than an outer diameter of the fixed section.

8. The line set of claim 7, wherein the gathering section has an inner diameter that is the same as an inner diameter of the fixed section.

9. The conduit apparatus according to claim 7 wherein a first end of said gathering section is proximate said weld area and a second end of said gathering section is distal said weld area, said gathering section having an outer diameter that is constant in a direction from said first end to said second end of said gathering section.

10. The conduit apparatus according to claim 7 wherein a first end of said gathering section is proximate said weld area and a second end of said gathering section is distal said weld area, said gathering section increasing in outer diameter in a direction from said first end to said second end of said gathering section.

11. The conduit apparatus according to claim 7, wherein a first end of said gathering section is proximate to said weld area and a second end of said gathering section is distal from said weld area, said gathering section including a plurality of sections that are stepped, wherein a section of the plurality of sections that is closer to said second conduit has a smaller outer diameter and a section that is further from said second conduit has a larger outer diameter.

12. Pipeline apparatus according to any one of claims 1-11, wherein the material of the first coupling sleeve comprises copper and the material of the first pipeline comprises iron.

13. A pipeline apparatus as claimed in any one of claims 1 to 11, wherein the end faces of the second pipeline and the first pipeline which face each other are in contact within the first coupling sleeve.

14. Pipeline apparatus according to any one of claims 1 to 11, wherein the end faces of the second and first pipelines which face each other are axially spaced apart within the first coupling sleeve.

15. Pipeline apparatus according to any one of claims 1-11, wherein the first coupling sleeve is provided with a first protrusion, which locates a free end face of the second pipeline; and/or a second convex part is arranged on the second pipeline and used for positioning the free end face of the first connecting sleeve.

16. Pipeline apparatus according to any one of claims 1-8, characterized in that the collecting space is configured as a constant-section collecting space.

17. Pipeline apparatus according to one of claims 1 to 8, characterized in that the collecting space is configured as a stepped, multistage collecting space, and that the volume of one stage of collecting space close to the welding zone is greater than the volume of another stage of collecting space remote from the welding zone.

18. Pipeline apparatus according to any one of claims 1-8, wherein the collection space is configured as a cross-sectional gradual collection space, and the cross-sectional area of the end close to the welding zone is larger than the cross-sectional area of the end remote from the welding zone.

19. An air conditioner characterized by comprising a pipe arrangement according to any one of claims 1-18.

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