A connection device for air conditioner evaporator

Abstract

The utility model discloses a connecting device for an air-conditioning evaporator, which belongs to the technical field of air-conditioning evaporators. It solves the problem that the limiting part of the existing device makes it difficult to remove the drain pipe from the connecting pipe, making it troublesome to use. It comprises an evaporator body, and a connecting pipe is arranged on the side of the evaporator body. An inner sleeve connected to the connecting pipe at one end away from the evaporator body is fixedly installed, and the inner sleeve is movably sleeved inside the drain pipe. The outer surfaces of the connecting pipe and the drain pipe are threadedly sleeved with an outer sleeve. The drain pipe and the connecting pipe can be connected or removed by rotating the outer sleeve, thereby achieving the purpose of facilitating the removal of the drain pipe and the connecting pipe. The utility model is simple and convenient to use. By inserting a limiting block into the limiting groove, relative rotation between the drain pipe and the connecting pipe can be avoided. The outer sleeve can be limited by a limiting ring to avoid the situation where the outer sleeve rotates more or less times when rotating.

Description

Technical Field

[0001] The utility model relates to the technical field of air-conditioning evaporators, in particular to a connecting device for an air-conditioning evaporator. Background Art

[0002] The blower blows the air outside the car to the surface of the car air-conditioning evaporator. The refrigerant in the evaporator exchanges heat with the outside air, thereby turning the hot air outside into cold air. A connecting pipe is provided on the shell of the car air-conditioning evaporator, and the connecting pipe is connected to the drain pipe.

[0003] After searching, the application with patent application number CN202122789724.7 discloses a drain pipe connection device for an automobile air-conditioning evaporator housing, including a limiting portion and a reverse tooth, the limiting portion and the reverse tooth are arranged on the surface of the connecting pipe of the housing, the connecting pipe is cylindrical, the limiting portion and the reverse tooth are convexly arranged on the outer surface of the connecting pipe, the drain pipe is plugged with the connecting pipe, the drain pipe includes an annular portion, the annular portion is provided with a positioning groove, the positioning groove and the limiting portion are arranged correspondingly, when the drain pipe and the connecting pipe are assembled, the positioning groove is buckled with the limiting portion, the reverse tooth contacts with the inner wall of the drain pipe, a positioning piece is arranged on the outer surface of the drain pipe, and a positioning piece is provided at both ends of the positioning piece, respectively, and when the positioning piece is clamped, the positioning piece is clamped with the groove;

[0004] Although the drain pipe connecting device of the automobile air-conditioning evaporator shell is buckled with the limiting part on the connecting pipe through the positioning groove on the drain pipe, and the inverted teeth are in contact with the inner wall of the drain pipe to prevent the drain pipe from falling off, the limiting part of the automobile air-conditioning evaporator shell makes it difficult to remove the drain pipe from the connecting pipe, making it inconvenient to repair or replace the drain pipe, and it is more troublesome to use.

[0005] Therefore, we propose a connection device for an air conditioner evaporator. Utility Model Content

[0006] In view of the deficiencies in the prior art, the utility model provides a connecting device for an air conditioner evaporator, which solves the problem that the limiting part of the prior device makes it difficult to remove the drain pipe from the connecting pipe, making it inconvenient to repair or replace the drain pipe and making it troublesome to use.

[0007] To achieve the above objectives, the utility model is implemented through the following technical solutions: a connecting device for an air conditioner evaporator, comprising an evaporator body, a connecting pipe being arranged on the side of the evaporator body;

[0008] An inner sleeve connected to the connecting pipe is fixedly installed at one end away from the evaporator body, and the inner sleeve is movably sleeved inside the drain pipe. The outer surfaces of the connecting pipe and the drain pipe are threadedly sleeved with an outer sleeve.

[0009] Preferably, the drain pipe and the connecting pipe have the same outer diameter, and the outer surfaces of the connecting pipe and the drain pipe are respectively provided with a first external thread and a second external thread, and the interior of the outer sleeve is provided with an internal thread matching the first external thread and the second external thread, so as to facilitate the outer sleeve threading to be mounted on the outer surfaces of the drain pipe and the connecting pipe.

[0010] Preferably, a limiting groove is provided on the side wall of the connecting pipe, and a limiting block is fixedly installed on the side wall of the drain pipe. The limiting block is movably mounted inside the limiting groove, wherein when the limiting block is inserted into the inside of the limiting groove, relative rotation between the drain pipe and the connecting pipe can be avoided when the outer sleeve is rotated, thereby limiting and fixing the drain pipe.

[0011] Preferably, a limiting ring is fixedly mounted on the outer surface of the connecting tube. When the limiting ring is threadedly mounted on the connecting tube, its side surface fits with the side surface of the limiting ring. The limiting ring can limit the outer sleeve to avoid more or less rotations when the outer sleeve is rotated.

[0012] Preferably, the outer diameter of the inner sleeve matches the inner diameter of the drain pipe, and an elastic sealing ring is fixedly mounted on the inner wall of the drain pipe, and the elastic sealing ring fits against the inner wall of the inner sleeve. An annular sealing ring is fixedly mounted on the end surface of the drain pipe in contact with the connecting pipe, wherein the elastic sealing ring can increase the sealing between the drain pipe and the inner sleeve, and when the outer sleeve is threadedly mounted on the outer surfaces of the connecting pipe and the drain pipe, the annular sealing ring on the contact surface of the drain pipe and the connecting pipe will be squeezed against each other and deformed, and can be filled in the gap between the contact surface of the connecting pipe and the drain pipe, thereby improving the sealing between the connecting pipe and the drain pipe.

[0013] The utility model provides a connection device for an air conditioner evaporator, which has the following beneficial effects:

[0014] 1. The connection device of the air conditioner evaporator can prevent the drain pipe and the connecting pipe from rotating relative to each other by first setting the outer sleeve on the outside of the drain pipe and then inserting the limit block into the inside of the limit groove. Then, the outer sleeve is rotated until one end of the outer sleeve contacts the side of the limit ring. The outer sleeve can be limited by the limit ring to prevent the outer sleeve from rotating too many or too few times. At this time, the inner sleeve is located inside the drain pipe, and the connection between the drain pipe and the connecting pipe can be completed. Only the outer sleeve needs to be rotated to connect or disassemble the drain pipe and the connecting pipe, so as to achieve the purpose of facilitating the disassembly of the drain pipe and the connecting pipe. The device is simple and convenient to use, and solves the problem that the limiting part of the existing device causes the drain pipe to be inconvenient to be disassembled from the connecting pipe, which is inconvenient to repair or replace the drain pipe and is troublesome to use.

[0015] 2. The connecting device of the air conditioner evaporator can fill the gap between the drain pipe and the inner sleeve through an elastic sealing ring, and when the outer sleeve rotates, the annular sealing ring on the contact surface of the drain pipe and the connecting pipe will squeeze each other and deform, and then fill in the gap between the contact surfaces of the drain pipe and the connecting pipe, thereby achieving the purpose of improving the sealing when the drain pipe and the connecting pipe are connected. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the connecting pipe structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the split structure of the utility model;

[0019] Figure 4 This is a schematic diagram of the drainage pipe structure of the utility model.

[0020] In the figure: 1. evaporator body; 2. connecting pipe; 3. inner sleeve; 4. first outer thread; 5. limiting groove; 6. limiting ring; 7. drain pipe; 8. second outer thread; 9. outer sleeve; 10. inner thread; 11. limiting block; 12. elastic sealing ring. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Embodiment 1:

[0023] like Figure 1-4As shown: it includes an evaporator body 1, a connecting pipe 2 is arranged on the side of the evaporator body 1, an inner sleeve 3 connected to the connecting pipe 2 is fixedly installed at one end away from the evaporator body 1, and the inner sleeve 3 is movably sleeved inside the drain pipe 7, and the outer surfaces of the connecting pipe 2 and the drain pipe 7 are threadedly sleeved with an outer sleeve 9, and the outer diameters of the drain pipe 7 and the connecting pipe 2 are the same. The outer surfaces of the connecting pipe 2 and the drain pipe 7 are respectively provided with a first external thread 4 and a second external thread 8, and the inner part of the outer sleeve 9 is provided with an internal thread 10 matching the first external thread 4 and the second external thread 8, a limiting groove 5 is arranged on the side wall of the connecting pipe 2, and a limiting block 11 is fixedly installed on the side wall of the drain pipe 7, and the limiting block 11 is movably sleeved inside the limiting groove 5, and a limiting ring 6 is fixedly sleeved on the outer surface of the connecting pipe 2. When the ring 6 is threadedly sleeved on the connecting pipe 2, its side surface is fitted with the side surface of the limiting ring 6. By first sleeve-mounting the outer sleeve 9 on the outside of the drain pipe 7 and then inserting the limiting block 11 into the limiting groove 5, the drain pipe 7 and the connecting pipe 2 can be prevented from rotating relative to each other. Then, the outer sleeve 9 is rotated until one end of the outer sleeve 9 contacts the side surface of the limiting ring 6. The outer sleeve 9 can be limited by the limiting ring 6 to prevent the outer sleeve 9 from rotating too many or too few times. At this time, the inner sleeve 3 is located inside the drain pipe 7, and the connection between the drain pipe 7 and the connecting pipe 2 can be completed. Only the outer sleeve 9 needs to be rotated to connect or disassemble the drain pipe 7 and the connecting pipe 2, thereby achieving the purpose of facilitating the disassembly of the drain pipe 7 and the connecting pipe 2, and the use is simple and convenient.

[0024] Embodiment 2:

[0025] like Figure 3-4 As shown: the outer diameter of the inner sleeve 3 matches the inner diameter of the drain pipe 7, the inner wall of the drain pipe 7 is fixedly sleeved with an elastic sealing ring 12, the elastic sealing ring 12 fits with the inner wall of the inner sleeve 3, and the end faces of the drain pipe 7 in contact with the connecting pipe 2 are fixedly installed with annular sealing rings, the elastic sealing ring 12 can fill the gap between the drain pipe 7 and the inner sleeve 3, and when the outer sleeve 9 rotates, the annular sealing rings on the contact surfaces of the drain pipe 7 and the connecting pipe 2 will squeeze each other and deform, and then fill in the gap between the contact surfaces of the drain pipe 7 and the connecting pipe 2, thereby achieving the purpose of improving the sealing performance when the drain pipe 7 is connected to the connecting pipe 2.

[0026] Working principle and use process of the utility model: When using the connecting device of the air-conditioning evaporator, the outer sleeve 9 is first sleeved on the outside of the drain pipe 7, and then the limit block 11 is inserted into the inside of the limit groove 5, and the outer sleeve 9 can be rotated until one end of the outer sleeve 9 contacts the side of the limit ring 6. At this time, the inner sleeve 3 is located inside the drain pipe 7, and the elastic sealing ring 12 can be used to fill the gap between the drain pipe 7 and the inner sleeve 3. When the outer sleeve 9 rotates, the annular sealing rings on the contact surfaces of the drain pipe 7 and the connecting pipe 2 will squeeze each other and deform, and then fill in the gap between the contact surfaces of the drain pipe 7 and the connecting pipe 2, thereby increasing the sealing when the drain pipe 7 is connected to the connecting pipe 2.

[0027] The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is limited by the attached claims rather than the above description, and it is intended to include all changes within the meaning and scope of the equivalent elements of the claims. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0028] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A connection device for an air conditioner evaporator, comprising an evaporator body (1), wherein a connection pipe (2) is arranged on a side of the evaporator body (1); Features: An inner sleeve (3) connected to the connecting pipe (2) is fixedly mounted on one end away from the evaporator body (1); the inner sleeve (3) is movably sleeved inside the drain pipe (7); and an outer sleeve (9) is threadedly sleeved on the outer surfaces of the connecting pipe (2) and the drain pipe (7).

2. The connection device for an air conditioner evaporator according to claim 1, characterized in that: The outer diameters of the drain pipe (7) and the connecting pipe (2) are the same; the outer surfaces of the connecting pipe (2) and the drain pipe (7) are respectively provided with a first external thread (4) and a second external thread (8); the interior of the outer sleeve (9) is provided with an internal thread (10) matching the first external thread (4) and the second external thread (8).

3. The connection device for an air conditioner evaporator according to claim 1, characterized in that: The side wall of the connecting pipe (2) is provided with a limiting groove (5), and the side wall of the drainage pipe (7) is fixedly mounted with a limiting block (11), and the limiting block (11) is movably sleeved inside the limiting groove (5).

4. The connection device for an air conditioner evaporator according to claim 1, characterized in that: The outer surface of the connecting pipe (2) is fixedly sleeved with a limiting ring (6); when the limiting ring (6) is threadedly sleeved on the connecting pipe (2), the side surface of the limiting ring (6) fits with the side surface of the limiting ring (6).

5. The connection device for an air conditioner evaporator according to claim 1, characterized in that: The outer diameter of the inner sleeve (3) matches the inner diameter of the drain pipe (7); an elastic sealing ring (12) is fixedly mounted on the inner wall of the drain pipe (7); the elastic sealing ring (12) fits the inner wall of the inner sleeve (3); and an annular sealing ring is fixedly mounted on the end surface of the drain pipe (7) that contacts the connecting pipe (2).

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