A pipe connection structure for air conditioning equipment

Abstract

The utility model provides a pipe connection structure for air conditioning equipment, including a soft connection with one end connected to the end of the air conditioning equipment, the other end of the soft connection is connected to the pipeline, and also includes a sliding sleeve assembly covered on the outside of the soft connection, the sliding sleeve assembly includes an inner sleeve connected to the end of the air conditioning equipment, an outer sleeve with one end slidingly sleeved on the outside of the other end of the inner sleeve, the other end of the outer sleeve is connected to the pipeline, a protective cavity is formed between the inner side of the sliding sleeve assembly and the outer side of the soft connection, and the outer sleeve array is provided with a through hole connecting the atmosphere and the protective cavity. The pipe connection structure for air conditioning equipment provided by the utility model protects the outside of the soft connection through the protective cavity, thereby avoiding the influence of the external environment on the soft connection. At the same time, the protective cavity also plays a role of heat preservation, avoiding the influence of temperature difference on the soft connection, and improving the service life of the soft connection. The durability of the connection structure is stronger, thereby improving the reliability and safety of the connection structure.

Description

Technical Field

[0001] The utility model relates to the technical field of air-conditioning equipment, in particular to a pipeline connection structure for air-conditioning equipment. Background Art

[0002] In order to ensure the stability of the air conditioning system, the air conditioning equipment end and the air duct are often connected through a soft connection. The soft connection is a soft pipe that connects the air duct and the air conditioning equipment end. It is mainly used to connect the indoor and outdoor units to facilitate the transmission of gas, liquid and other substances between the indoor and outdoor units of the air conditioner to achieve the normal operation of the air conditioner. The air conditioning pipe soft connection has the functions of connection, multi-directional compensation, sound absorption and shock absorption, and transmission of refrigerant. The air conditioning pipe soft connection is often made of rubber, and due to the harsh use environment, it is necessary to pay attention to maintenance and replacement during daily use to ensure the reliability and safety of the connection.

[0003] The existing flexible connection structure for air-conditioning pipes often causes rubber aging and damage after a long period of time due to the influence of the use environment, which reduces the reliability and safety of the connection structure. The durability of the connection structure is not strong. This solution solves this technical problem. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a pipe connection structure for air-conditioning equipment, which protects the outside of the soft connection through a protective cavity, avoids the influence of the external environment on the soft connection, and improves the reliability and safety of the connection structure.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a pipeline connection structure for air-conditioning equipment, including a soft connection with one end connected to the air-conditioning equipment end, the other end of the soft connection is connected to the pipeline, and also includes a sliding sleeve assembly covered on the outside of the soft connection, the sliding sleeve assembly includes an inner sleeve with one end connected to the air-conditioning equipment end, and an outer sleeve with one end slidingly sleeved on the outside of the other end of the inner sleeve, the other end of the outer sleeve is connected to the pipeline, a protective cavity is formed between the inner side of the sliding sleeve assembly and the outer side of the soft connection, the outer sleeve array is provided with a through hole connecting the atmosphere and the protective cavity, and an annular filter cotton for filtering the external atmosphere is arranged at the through hole in the protective cavity.

[0006] A limiting sleeve is arranged at one end of the outer sleeve and is in sliding contact with the inner sleeve. A plurality of through holes penetrate the limiting sleeve. An annular groove communicating with the through holes is arranged on the side of the limiting sleeve. The annular filter cotton is embedded in the annular groove.

[0007] A plurality of antioxidant bags are arranged in the protection cavity.

[0008] The air conditioning equipment end, the flexible connection, the pipeline and the sliding sleeve assembly are all connected through a flange structure.

[0009] A spring and a retaining ring are respectively arranged on both sides of the annular filter cotton in the annular groove. The spring is arranged to abut against one side of the annular filter cotton close to the through hole, and the retaining ring is detachably arranged on the other side of the annular filter cotton.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] (1) The protective cavity protects the outside of the flexible connection, thereby avoiding the influence of the external environment on the flexible connection. At the same time, the protective cavity also plays a role in heat preservation, avoiding the influence of temperature difference on the flexible connection, thereby increasing the service life of the flexible connection, making the connection structure more durable, and thus improving the reliability and safety of the connection structure;

[0012] (2) External gas enters the protective cavity through the through hole, and becomes cleaner after being filtered by the annular filter cotton. Finally, the gas entering the protective cavity passes through the antioxidant bag, which further reduces the impact of oxygen on the flexible connection. The setting of the annular filter cotton and the antioxidant bag reduces the impact of impurities in the gas and oxygen on the rubber, thereby increasing the service life of the flexible connection;

[0013] (3) The outer sleeve slides along the inner sleeve to avoid damage caused by excessive radial displacement of the flexible connection. When the flexible connection is damaged, the protective cavity prevents the gas in the air-conditioning equipment from impacting and damaging the surrounding environment, making the connection structure safer to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a cross-sectional structural schematic diagram of the utility model.

[0015] Figure 2 This utility model Figure 1 Schematic diagram of the local enlarged structure of part A.

[0016] Figure 3 It is a schematic diagram of the vertical section structure of the utility model.

[0017] Among them, in the figure: 1, soft connection; 2, sliding sleeve assembly; 21, inner sleeve; 22, outer sleeve; 23, protective cavity; 24, limit sleeve; 241, through hole; 242, annular groove; 25, annular filter cotton; 3, air conditioning equipment end; 4, pipeline; 5, antioxidant bag; 6, spring; 7, retaining ring. DETAILED DESCRIPTION

[0018] In order to more clearly illustrate the technical features of this solution, this solution is described below through specific implementation methods.

[0019] See also Figure 1-Figure 3A pipe connection structure for air-conditioning equipment includes a soft connection 1 connected to an air-conditioning equipment end 3 at one end, the other end of the soft connection 1 is connected to a pipe 4, and also includes a sliding sleeve assembly 2 covered on the outside of the soft connection 1. The sliding sleeve assembly 2 includes an inner sleeve 21 connected to the air-conditioning equipment end 3 at one end, and an outer sleeve 22 slidably sleeved on the outside of the other end of the inner sleeve 21 at one end, the other end of the outer sleeve 22 is connected to the pipe 4, a protective cavity 23 is formed between the inner side of the sliding sleeve assembly 2 and the outer side of the soft connection 1, the outer sleeve 22 array is provided with a through hole 241 connecting the atmosphere and the protective cavity 23, and an annular filter cotton 25 for filtering the external atmosphere is arranged at the through hole 241 in the protective cavity 23.

[0020] A limiting sleeve 24 is provided at one end of the outer sleeve 22 for sliding contact with the inner sleeve 21 . A plurality of through holes 241 are provided through the limiting sleeve 24 . An annular groove 242 communicating with the through holes 241 is provided on the side of the limiting sleeve 24 . The annular filter cotton 25 is embedded in the annular groove 242 .

[0021] A plurality of antioxidant bags 5 are arranged in the protection cavity 23 .

[0022] The air conditioning equipment end 3, the flexible connection 1, the pipeline 4 and the sliding sleeve assembly 2 are all connected through a flange structure.

[0023] A spring 6 and a retaining ring 7 are respectively arranged on both sides of the annular filter cotton 25 in the annular groove 242 . The spring 6 is arranged to abut against one side of the annular filter cotton 25 close to the through hole 241 , and the retaining ring 7 is detachably arranged on the other side of the annular filter cotton 25 .

[0024] The specific working process of this utility model:

[0025] During installation, first, the inner sleeve 21 and the outer sleeve 22 are respectively sleeved on the outside of the air conditioning equipment end 3 and the pipeline 4, and then the flange surfaces are welded at the ends of the air conditioning equipment end 3 and the pipeline 4. After the flange surface welding is completed, the two ends of the flexible connection 1 are respectively installed on the air conditioning equipment end 3 and the pipeline 4 through the flange surfaces, and finally, the inner sleeve 21 and the outer sleeve 22 are respectively inserted into the flange bolts of the air conditioning equipment end 3 and the pipeline 4, and the inner sleeve 21 is passed into the outer sleeve 22, and then tightened by the nut, and the installation of the connection structure is completed;

[0026] When the air-conditioning device end 3 is running, the flexible connection 1 generates a telescopic movement under the effect of the pressure difference and temperature difference of the air-conditioning device end 3 and the internal gas of the pipeline 4, and drives the outer sleeve 22 to slide along the inner sleeve 21. The outer part of the flexible connection 1 is protected by the protective cavity 23, thereby avoiding the influence of the external environment on the flexible connection 1. At the same time, the protective cavity 23 also plays a role of heat preservation, thereby avoiding the influence of the temperature difference on the flexible connection 1. When the flexible connection 1 is stretched, the external gas enters the protective cavity 23 through the through hole 241, and is cleaner after being filtered by the annular filter cotton 25. Finally, the gas entering the protective cavity 23 passes through the antioxidant bag 5, thereby further reducing the influence of oxygen on the flexible connection 1. The setting of the annular filter cotton 25 and the antioxidant bag 5 reduces the influence of impurities in the gas and oxygen on rubber. Therefore, the temperature and humidity of the flexible connection 1 are kept stable through the combination of the inner sleeve 21 and the outer sleeve 22, thereby optimizing the use environment of the flexible connection 1 and improving the service life of the flexible connection 1. When the flexible connection 1 contracts, the gas is discharged through the through hole 241.

[0027] The annular filter cotton 25 overcomes the elastic force of the spring 6 through the retaining ring 7 and is pressed into the annular groove 242. The arrangement of the spring 6 and the retaining ring 7 makes the annular filter cotton 25 more stable in the annular groove 242, and the replacement of the annular filter cotton 25 is more convenient and quick.

[0028] The outer sleeve 22 slides along the inner sleeve 21 to avoid damage to the flexible connection 1 caused by excessive radial displacement. When the flexible connection 1 is damaged, the protective cavity 23 prevents the gas in the air-conditioning equipment from impacting and damaging the surrounding environment, making the connection structure safer to use.

[0029] It should be noted that the antioxidant bag 5 is annular and wrapped around the two ends of the flexible connection 1, which will not affect the telescopic movement of the flexible connection 1 and the sliding sleeve assembly 2. When the antioxidant bag 5 and the annular filter cotton 25 need to be replaced, the inner sleeve 21 and the outer sleeve 22 are removed from the flange surface of the air-conditioning equipment end 3 and the pipeline 4, and then slid to the end away from the flexible connection 1 respectively. After the flexible connection 1 is removed, it can be replaced.

[0030] Technical features not described in the present invention can be achieved through or by adopting existing technologies, and will not be elaborated here. Of course, the above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions or substitutions made by ordinary technicians in this technical field within the essential scope of the present invention should also fall within the scope of protection of the present invention.

Claims

1. A pipe connection structure for air conditioning equipment, comprising a flexible connection (1) having one end connected to an air conditioning equipment end (3), and the other end of the flexible connection (1) connected to a pipe (4), characterized in that: The invention also comprises a sleeve assembly (2) covering the outside of the flexible connection (1), the sleeve assembly (2) comprising an inner sleeve (21) having one end connected to the air conditioning equipment end (3), and an outer sleeve (22) having one end slidingly sleeved on the outside of the other end of the inner sleeve (21), the other end of the outer sleeve (22) being connected to the pipe (4), a protective cavity (23) being formed between the inner side of the sleeve assembly (2) and the outer side of the flexible connection (1), the outer sleeve (22) being provided with an array of through holes (241) connecting the atmosphere with the protective cavity (23), and an annular filter cotton (25) for filtering the outside atmosphere is provided in the protective cavity (23) at the through holes (241).

2. The pipe connection structure for air conditioning equipment according to claim 1, characterized in that: A limiting sleeve (24) is provided at one end of the outer sleeve (22) and is in sliding contact with the inner sleeve (21); a plurality of through holes (241) are provided through the limiting sleeve (24); a side portion of the limiting sleeve (24) is provided with an annular groove (242) that is in communication with the through holes (241); and the annular filter cotton (25) is embedded in the annular groove (242).

3. The pipe connection structure for air conditioning equipment according to claim 2, characterized in that: A plurality of antioxidant bags (5) are arranged in the protection cavity (23).

4. The pipe connection structure for air conditioning equipment according to claim 2, characterized in that: The air conditioning equipment end (3), the flexible connection (1), the pipeline (4) and the sliding sleeve assembly (2) are all connected via a flange structure.

5. The pipe connection structure for air conditioning equipment according to claim 2, characterized in that: A spring (6) and a retaining ring (7) are respectively arranged on both sides of the annular filter cotton (25) in the annular groove (242); the spring (6) is arranged in contact with one side of the annular filter cotton (25) close to the through hole (241), and the retaining ring (7) is detachably arranged on the other side of the annular filter cotton (25).

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