CN220892618U - Double-ring connection structure for refrigerator maintenance - Google Patents

Abstract

The utility model discloses a double-ring connecting structure for refrigerator maintenance, which comprises a connecting and mounting assembly, wherein the connecting and mounting assembly comprises a lock ring, an evaporator copper pipe, a compressor muffler and a maintenance transition pipe ring sleeve, the maintenance transition pipe ring sleeve is positioned between the compressor muffler and the evaporator copper pipe, and the maintenance transition pipe ring sleeve is close to the outer sides of two ends of the compressor muffler and the evaporator copper pipe.

Description

Double-ring connection structure for refrigerator maintenance

Technical Field

The utility model discloses a double-ring connection structure for refrigerator maintenance, belongs to the technical field of refrigerators, and particularly relates to a double-ring connection structure for maintenance, wherein a copper pipe of an evaporator in a refrigerator is connected with a return air pipe of a compressor in a cold manner.

Background

The evaporator outlet copper pipe in the refrigerator is connected with the compressor muffler, the connection mode is a connection mode that copper flame welding is carried out on the copper pipe outlet copper pipe and the compressor muffler, open flame is needed to be used during traditional maintenance, flame welding is carried out on the connection point, the refrigerant in the refrigerating system is needed to be released during maintenance, the refrigerant is inflammable and explosive gas, the dangerous degree is extremely high, the refrigerator is pulled back to a maintenance point to be welded and maintained, and the maintenance cost is indirectly increased.

Disclosure of utility model

The utility model aims to: the double-ring connection structure for maintaining the cold connection of the copper pipe of the evaporator and the return air pipe of the compressor in the refrigerator can be directly maintained in a residential area, open fire is not required to be used, the refrigerator is not required to be pulled back to a maintenance point, and the maintenance can be performed on site at a customer, so that the problems of high risk, high cost and the like in the conventional maintenance are solved.

The technical scheme is as follows: the utility model provides a dicyclo connection structure is used in refrigerator maintenance, compressor muffler and maintenance transition pipe ring suit one end are connected, and the evaporimeter copper pipe is connected with maintenance transition pipe ring suit other end, and foretell connection structure includes first lock ring, maintenance transition pipe ring suit, compressor muffler and evaporimeter copper pipe. The transition pipe in the maintenance transition pipe ring sleeve is respectively connected with the compressor muffler and the evaporator copper pipe through the second lock ring, and the transition pipe is respectively connected with the compressor muffler and the evaporator copper pipe sleeve in a radial compression deformation sealing manner, so that the operation is simple, the safety and the convenience are realized, and open fire is not required. The maintenance transition pipe ring suit is located between compressor muffler and the evaporimeter copper pipe, the transition pipe that the second lock ring was installed at maintenance transition pipe ring suit is close to the outside at compressor muffler, evaporimeter copper pipe both ends, the transition pipe is close to the tip of compressor muffler and evaporimeter copper pipe and is provided with the linkage segment of flaring, the position is spacing portion of being connected between transition pipe and compressor muffler, the evaporimeter copper pipe, there is sealing liquid annular curing layer between transition pipe flaring linkage segment and the linkage segment of compressor muffler, evaporimeter copper pipe, junction surface cladding has the protection tube.

Preferably, an identification annular groove is formed in the middle of the outer surface of the second lock ring.

Preferably, one end of the transition tube penetrates the interior of the second lock ring, and the flaring leaves at least a straight line segment of 1mm free from penetrating the second lock ring.

Preferably, the other end of the transition pipe penetrates through the interior of the first lock ring and extends for 1mm.

Preferably, the evaporator copper pipe and the compressor return air pipe are respectively connected with the transition pipe, the first lock ring and the second lock ring to form a compression section, and the two ends of the transition pipe are respectively sleeved with the compressor return air pipe and the evaporator copper pipe tightly through the first lock ring and the second lock ring to form circumferential superposition compression seal.

Preferably, the outer surface of the connecting part is coated with a protective tube, the protective tube is tightly coated at the connecting part, one end of the protective tube exceeds the end face of the maintenance transition tube ring, which penetrates through the first lock ring by more than 10mm, and the other end of the protective tube exceeds the connection limiting part by more than 10 mm.

Preferably, one end of the compressor muffler is provided with a compressor muffler inner insertion pipe connecting section, one end of the evaporator copper pipe is provided with an evaporator copper pipe inner insertion pipe connecting section, a sealing liquid annular curing layer is arranged between the connecting sections at two ends of the transition pipe and the compressor muffler inner insertion pipe connecting section and the evaporator copper pipe inner insertion pipe connecting section, and the protective pipe is made of a high-shrinkage heat-sensitive material and has a thickness not smaller than 1mm.

Compared with the prior art, the utility model has the beneficial effects that:

1. Through the first lock ring that sets up, maintenance transition pipe ring suit, compressor muffler, evaporator copper pipe, sealed liquid annular solidification layer, protection pipe, first lock ring is tight with the transition pipe both ends and compressor muffler and evaporator copper pipe respectively after forming circumference coincide compression seal, easy operation, the tiny trench between maintenance transition pipe ring suit and the compressor muffler can be filled to the sealing liquid and one deck sealing layer is carried out sealing connection in the pipe, improve the leakproofness, protection pipe and sealing liquid solidification layer effectually prevent the potential difference corruption of two kinds of different material connecting pipe coincide departments.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic view of the location and structure of the present utility model for the repair transition pipe ring set and compressor muffler, evaporator copper pipe;

FIG. 3 is a schematic illustration of the internal structure of the connection of the service transition tube ring set of the present utility model to the compressor muffler;

FIG. 4 is an enlarged schematic view of the portion A of FIG. 3 according to the present utility model;

FIG. 5 is a schematic view of the internal structure of the connection of the lock ring and the copper tube of the evaporator for maintaining the transition tube ring set of the present utility model;

FIG. 6 is an enlarged view of the portion B of FIG. 5 according to the present utility model;

FIG. 7 is a schematic view of the structure of the protection pipe of the present utility model wrapping the connection of the muffler of the compressor;

FIG. 8 is a schematic view of the structure of the protection tube of the present utility model wrapping the copper tube junction of the evaporator;

Reference numerals: 1. a first rocyclic ring; 2. maintaining the transition pipe ring set; 3. a compressor muffler; 4. an evaporator copper tube; 5. a sealing liquid annular curing layer; 6. a protective tube; 21. a second rocyclic ring; 22. a transition pipe; 221. an outer sleeve connecting section; 222. crimping the compression section; 223. the connecting limiting part; 31. a connecting section of an intubation tube in a muffler of the compressor; 41. and a connecting section of the inner insertion pipe of the copper pipe of the evaporator.

Detailed Description

The following description of the embodiments of the present utility model will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the utility model are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art. In addition, the technical features of the different embodiments of the present utility model described below may be combined with each other as long as they do not collide with each other.

Examples

Referring to fig. 1 to 8, the present utility model provides a technical solution: the double-ring connection structure for maintaining cold connection of an evaporator copper pipe and a compressor air return pipe in a refrigerator comprises a connection installation assembly, wherein the connection installation assembly comprises a first lock ring 1, a maintenance transition pipe ring sleeve 2, a compressor air return pipe 3 and an evaporator copper pipe 4, the maintenance transition pipe ring sleeve 2 is positioned between the compressor air return pipe 3 and the evaporator copper pipe 4, the maintenance transition pipe ring sleeve 2 comprises a second lock ring 21 and a transition pipe 22, the first lock ring 1 is installed on the outer side of the maintenance transition pipe ring sleeve 2, which is close to the evaporator copper pipe 4, the second lock ring 21 is installed on the outer side of the maintenance transition pipe ring sleeve 2, which is close to the compressor air return pipe 3, the evaporator copper pipe 4 is connected with the transition pipe 22 through the first lock ring 1, the compressor air return pipe 3 is connected with the transition pipe 22 through the second lock ring 21, the ends of the transition pipe 22, which are close to the compressor air return pipe 3 and the evaporator copper pipe 4, are respectively provided with flared outer sleeve connecting sections 221, the connection limiting part 223 is arranged between the outer sleeve connecting sections 221 of the transition pipe 22, the connection limiting part 223 plays a role of limiting the compressor muffler 3 and the evaporator copper pipe 4, one end of the compressor muffler 3 is provided with the inner sleeve connecting section 31, one end of the evaporator copper pipe 4 is provided with the inner sleeve connecting section 41, a sealing liquid annular curing layer 5 is arranged between the outer sleeve connecting sections 221 and the inner sleeve connecting sections 31 and 41 respectively, the first lock ring 1 forms circumferential overlapping compression seal after the evaporator copper pipe 4 and the transition pipe 22 are tightly sleeved, the second lock ring 21 forms circumferential overlapping compression seal after the compressor muffler 3 and the transition pipe 22 are tightly sleeved, the operation is simple, the sealing liquid annular curing layer 5 can fill small groove marks between the transition pipe 22 and the compressor muffler 3 and the evaporator copper pipe 4 and form a layer of sealing layer between the pipes for sealing connection, the sealing performance and the corrosion resistance are improved, the traditional flame welding maintenance mode is replaced by the maintenance transition pipe ring sleeve 2, the risk of inflammability and explosiveness of refrigerants caused by flame welding maintenance is avoided, the maintenance convenience is improved, and the maintenance cost is reduced. The outer surface of the joint at the two ends of the maintenance transition pipe ring sleeve 2 is coated with a protection pipe 6, so that the contact between the joint and external condensate water is isolated, and the corrosion resistance of the joint is improved.

In this embodiment, in the maintenance transition pipe ring set 2, the second lock ring 21 is sleeved in the middle of the transition pipe 22, and the flare opening of the second lock ring 21 is connected to the compressor muffler 3 toward the end.

In this embodiment, since the compressor muffler needs to be cut off to remove a section during maintenance, the length of the compressor muffler is shortened, and the compressor muffler is not enough to be crimped in the direction of the transition pipe by using the lock ring sleeve, and the second lock ring 21 in the maintenance transition pipe ring sleeve 2 needs to be reversely crimped.

In this embodiment, the connection structure that transition pipe and compressor muffler are connected, its characterized in that: one end of the transition tube 22 penetrates through the inside of the second lock ring 21, and the flaring leaves at least a straight line segment of 1mm without penetrating through the second lock ring 21; the compressor muffler 3 is connected with the transition pipe 22 in a sleeved mode, the sealing liquid annular curing layer 5 is made of anaerobic sealing agent, potential difference corrosion is effectively isolated, and the pipeline connection between the transition pipe and the compressor is enabled to be better in sealing performance and stability.

In this embodiment, the one end of compressor muffler is provided with the intraductal intubate linkage segment of compressor muffler, the one end of evaporator copper pipe is provided with intraductal intubate linkage segment of evaporator copper, there is sealing liquid annular curing layer between transition pipe both ends linkage segment and compressor muffler intubate linkage segment and the intraductal intubate linkage segment of evaporator copper, the protection pipe is high shrink heat-sensitive material, and thickness is not less than 1mm.

In this embodiment, the connection structure that transition pipe and evaporimeter copper pipe are connected, its characterized in that: the other end of the transition tube 22 extends through the interior of the first lock ring 1 and remains extended by 1mm.

In this embodiment, two ends of the transition pipe 22 are respectively connected with the evaporator copper pipe 4 and the compressor muffler 3 through the first lock ring 1 and the second lock ring 21 to form a compression section 222, and the first lock ring 1 and the second lock ring 21 respectively sleeve the transition pipe 22 with the evaporator copper pipe 4 and the compressor muffler 3 to form a circumferential overlapping compression seal.

In this embodiment, the protection pipe 6 is respectively coated on the connection sections of the first lock ring 1, the evaporator copper pipe 4 and the transition pipe 22, and the outer surfaces of the connection sections of the second lock ring 21, the compressor muffler 3 and the transition pipe 22, so as to isolate the entry of external condensed water and improve the corrosion resistance.

The working principle and the using flow of the utility model are as follows:

When the installation and maintenance transition pipe ring sleeve 2 is connected with the compressor air return pipe 3, the compressor air return pipe 3 is connected with the compressor air return pipe 3 through the second lock ring 21, and the steps are as follows;

Firstly, sleeving a protective sleeve 6 on the outer side of a compressor muffler 3, and sleeving a horn mouth of a second lock ring 21 in a maintenance transition pipe ring sleeve 2 outside an inner pipe connecting section 31 of the compressor muffler 3 towards the end;

Secondly, sealing liquid is filled between the outer sleeve connecting section 221 and the compressor air return pipe 3, and the compressor air return pipe 3 and the transition pipe 22 are filled with the sealing liquid, so that the compressor air return pipe 3 and the transition pipe 22 are sealed and stabilized;

Thirdly, sliding the second lock ring 21 towards the direction of the compressor muffler 3, compressing the sealing liquid, and forming a sealing liquid annular solidified layer 5 between the outer sleeve connecting section 221 and the compressor muffler 3;

The second lock ring 21 is used for tightly sleeving the compressor muffler 3 and the transition pipe 22 to form circumferential superposition compression seal, so that the operation is simple, the sealing liquid can fill up tiny groove marks between the transition pipe 22 and the compressor muffler 3 and form a layer of sealing layer between the pipes for sealing connection, the tightness is improved, the traditional flame welding maintenance mode is replaced by the maintenance transition pipe ring sleeve 2, the risk of inflammable and explosive refrigerants caused by flame welding maintenance is avoided, the maintenance convenience is improved, and the maintenance cost is reduced;

And fourthly, moving the protection pipe 6 to the joint, ensuring that one end of the protection pipe exceeds the end surface of the maintenance transition pipe ring sleeve penetrating through the lock ring by more than 10mm, and the other end exceeds the connection limiting part by more than 10mm, and heating the protection pipe by using a hot air gun to tightly cover the outer surface of the joint.

Fifthly, sleeving the protective sleeve 6 on the outer side of the evaporator copper pipe 4, sleeving the first lock ring 1 on the outer side of the evaporator copper pipe 4, ensuring that the bell mouth of the first lock ring 1 faces the inner pipe connecting section 41, and inserting the inner pipe connecting section 41 of the evaporator copper pipe 4 into the flaring connecting section of the other end, which is not connected with the transition pipe (22), at the moment;

Sixthly, sealing liquid is filled between the outer sleeve connecting section 221 and the evaporator copper tube 4, and the evaporator copper tube 4 and the transition tube 22 are filled with the sealing liquid, so that the evaporator copper tube 4 and the transition tube 22 are sealed and stabilized;

Seventhly, sliding the first lock ring 1 towards the direction of the transition pipe 22, compressing sealing liquid, and forming a sealing liquid annular curing layer 5 between the outer sleeve connecting section 221 and the compressor muffler 3;

The first lock ring 1 is used for tightly sleeving the evaporator copper pipe 4 and the transition pipe 22 to form circumferential superposition compression seal, so that the operation is simple, the sealing liquid can fill up tiny groove marks between the transition pipe 22 and the evaporator copper pipe 4 and form a layer of sealing layer between the pipes for sealing connection, the sealing performance is improved, the traditional flame welding maintenance mode is replaced by the maintenance transition pipe ring sleeve 2, the risk of inflammable and explosive refrigerants caused by flame welding maintenance is avoided, the maintenance convenience is improved, and the maintenance cost is reduced;

And eighthly, the protection pipe 6 is moved to the joint, one end of the protection pipe exceeds the end surface of the transition pipe, which does not penetrate through the lock ring, by more than 10mm, and the other end of the protection pipe exceeds the connection limiting part by more than 10mm, and then the protection pipe is heated by using a hot air gun, so that the protection pipe is tightly coated on the outer surface of the joint.

Although embodiments of the present utility model have been shown and described in detail with reference to the foregoing detailed description, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations may be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. The utility model provides a dicyclo connection structure is used in refrigerator maintenance, includes connection installation component, its characterized in that: the connecting and mounting assembly comprises a first lock ring (1), a maintenance transition pipe ring sleeve (2), a compressor muffler (3) and an evaporator copper pipe (4);

The maintenance transition pipe ring set (2) consists of a transition pipe (22) and a second lock ring (21); the first lock ring (1) and the second lock ring (21) have the same structure; the maintenance transition pipe ring sleeve (2) is positioned between the compressor muffler (3) and the evaporator copper pipe (4), and the second lock ring (21) is sleeved on the middle section of the flaring at the two ends of the transition pipe (22);

when a transition pipe (22) of the maintenance transition pipe ring sleeve (2) is sleeved on the compressor muffler (3), a bell mouth of the second lock ring (21) faces the compressor muffler (3), and the second lock ring (21) is arranged on the outer side, close to the compressor muffler (3), of the transition pipe (22);

The utility model discloses a compressor copper pipe, including first lock ring (21), second lock ring (21), first lock ring (1), second lock ring (2), first lock ring (1), second lock ring (21), first lock ring (1) is installed in transition pipe (22) and is close to the outside of evaporimeter copper pipe (4), the bell mouth is towards transition pipe direction crimping when first lock ring (1) is installed, maintenance transition pipe ring suit (2) are close to the tip of compressor muffler (3) and are provided with outer tube linkage segment (221) of flaring, the position is between evaporimeter copper pipe (4) and outer tube linkage segment (221) is connection limit part (223), the one end of compressor muffler (3) is provided with compressor muffler intubate linkage segment (31), the one end of evaporimeter copper pipe (4) is provided with evaporimeter copper intraductal intubate linkage segment (41), there is sealing liquid annular curing layer (5) between transition pipe both ends linkage segment (221) and the intraductal intubate linkage segment (41), its junction surface cladding has protective tube (6);

The transition pipe (22), the evaporator copper pipe (4) and the first lock ring (1) are connected to form a compression joint compression section (222);

The telescopic parts of the second lock ring (21), the transition pipe (22) and the compressor muffler (3) are covered with a protection pipe (6), the protection pipe (6) is tightly covered at the joint, and the two ends of the protection pipe are respectively 10mm above the end face of the transition pipe (22) which does not penetrate through the second lock ring (21) and the connection limiting part (223);

The protection pipe (6) is covered outside the telescopic parts of the first lock ring (1), the transition pipe (22) and the evaporator copper pipe (4), the protection pipe (6) is tightly covered at the joint, and the two ends of the protection pipe respectively exceed the transition pipe (22) to penetrate through the end face of the first lock ring (1) and the connection limiting part (223) by more than 10 mm;

The protective tube (6) is made of high-shrinkage heat-sensitive material, and the thickness of the protective tube is not less than 1mm; the transition pipe (22) and the second lock ring (21) in the maintenance transition pipe ring set (2) are made of aluminum.

2. The double-ring connecting structure for refrigerator maintenance according to claim 1, wherein the second lock ring (21) in the maintenance transition pipe ring set (2) is sleeved in the middle of the transition pipe (22), and the bell mouth orientation end of the second lock ring (21) is connected with the compressor muffler (3).

3. The double-ring connecting structure for refrigerator maintenance according to claim 1 is characterized in that the length of the compressor muffler (3) is shortened because a section of the compressor muffler (3) needs to be cut off during maintenance, and the double-ring connecting structure is not enough to be in pressure connection with the transition pipe direction by using the first lock ring (1) sleeved on the compressor muffler (3), and needs to be in reverse pressure connection by using the second lock ring (21) in the maintenance transition pipe ring sleeve (2).

4. A double-ring connection structure for repairing a refrigerator according to claim 1, wherein one end of the transition pipe (22) penetrates through the inside of the second lock ring (21) and makes the flaring leave at least a straight line segment of 1mm without penetrating through the second lock ring (21).

5. The double-ring connecting structure for refrigerator maintenance according to claim 1, wherein the other end of the transition pipe (22) penetrates through the interior of the first lock ring (1) and extends for 1mm.

6. The double-ring connecting structure for refrigerator maintenance according to claim 1, wherein the transition pipe (22), the compressor muffler (3) and the second lock ring (21) are connected to form a compression section (222).