An ultra-low reverse osmosis water-resistant air conditioning hose assembly structure

Abstract

The utility model relates to a kind of ultra-low reverse water permeability air conditioner hose assembly structure.It solves the technical problems such as poor anti-permeation effect of existing air conditioner hose.The utility model discloses an air conditioner hose, the air conditioner hose is connected with hose joint by riveting pressure sleeve at two ends respectively, the air conditioner hose is equipped with aluminium foil sheath pipe in circumferential outside, aluminium foil sheath pipe extends from one end of air conditioner hose to the other end, aluminium foil sheath pipe is equipped with with glue heat shrinkable sheath pipe between two ends and riveting pressure sleeve respectively, with glue heat shrinkable sheath pipe two ends extend to aluminium foil sheath pipe and riveting pressure sleeve circumferential outside respectively.The advantage is that: air conditioner hose assembly structure is simple to assemble, the performance of air conditioner hose assembly part is greatly improved, the service life of air conditioner hose assembly is limitedly extended, and the stable operation of air conditioning system is greatly improved.

Description

Technical Field

[0001] This utility model belongs to the field of air conditioning hose technology, specifically relating to an ultra-low backflow air conditioning hose assembly structure. Background Technology

[0002] With the development of the automotive industry, car air conditioning has become a standard feature in automobiles. Therefore, the performance and reliability requirements for air conditioning hoses are becoming increasingly stringent, with the reverse water seepage resistance being crucial. In existing technologies, some air conditioning hoses improve their anti-seepage effect by adding a barrier layer or changing the materials. However, these methods often have shortcomings, such as complex structures leading to difficulties in production and assembly, or difficulty in simultaneously ensuring the hose's flexibility, pressure resistance, and other properties. Furthermore, the sealing treatment at the connection points of existing air conditioning hoses is not perfect, easily creating gaps that become channels for moisture and refrigerant to permeate, failing to meet the requirements for ultra-low reverse water seepage resistance. Summary of the Invention

[0003] The purpose of this invention is to address the above-mentioned problems by providing an ultra-low backflow air conditioning hose assembly structure.

[0004] To achieve the above objectives, this utility model adopts the following technical solution: an ultra-low backflow air conditioning hose assembly structure, including an automotive air conditioning hose. Both ends of the automotive air conditioning hose are connected to hose connectors via crimped sleeves. An aluminum foil sheath is provided on the outer circumference of the automotive air conditioning hose, extending from one end of the hose to the other. Adhesive-coated heat-shrinkable sheaths are provided between both ends of the aluminum foil sheath and the crimped sleeve, with both ends extending outwards to the outer circumference of both the aluminum foil sheath and the crimped sleeve. Utilizing multiple layers of protection, the aluminum foil sheath enhances the hose's anti-aging and heat insulation properties. The adhesive-coated heat-shrinkable sheath, through heat shrinking, fills the gap between the aluminum foil sheath and the crimped sleeve, effectively preventing the entry of moisture and dust, reducing backflow. Simultaneously, the aluminum foil sheath extends from one end of the hose to the other, and the adhesive-coated heat-shrinkable sheath covers the connection between the aluminum foil sheath and the crimped sleeve, achieving comprehensive protection and avoiding the risk of penetration due to localized exposure.

[0005] In the aforementioned ultra-low backflow water-resistant air conditioning hose assembly structure, the crimped sleeve has a hose connection portion connected to the automotive air conditioning hose, and the hose connection portion is connected to a connector connection portion connected to the hose fitting. By using the hose connection portion and the connector connection portion to correspond to the hose and fitting respectively, the division of labor is clear, facilitating precise positioning during assembly, ensuring connection strength and stability, and avoiding assembly deviations caused by structural ambiguity.

[0006] In the aforementioned ultra-low backflow water-resistant air conditioning hose assembly structure, one end of the adhesive heat-shrinkable sheath is wrapped around the outer circumference of the hose connection, and the other end is wrapped around the outer circumference of one end of the aluminum foil sheath. The adhesive heat-shrinkable sheath, with one end wrapped around the hose connection and the other end wrapped around the aluminum foil sheath, specifically covers the connection gap between the two components. Through heat shrinking of the inner adhesive, a sealing strip is formed, further improving the backflow effect. Simultaneously, the sealing effect of the adhesive heat-shrinkable sheath effectively prevents the air conditioning hose from direct contact with external ozone, improving the hose's ozone resistance.

[0007] In the aforementioned ultra-low backflow water-resistant air conditioning hose assembly structure, the inner side of the adhesive-coated heat-shrinkable sheath near the automotive air conditioning hose is bonded to the outer side of the aluminum foil sheath near the crimping sleeve. The length of the adhesive-coated heat-shrinkable sheath outside the crimping sleeve is less than the length of the crimping sleeve. This shorter length outside the crimping sleeve prevents excessive extension of the sheath from affecting the connection strength between the crimping sleeve and the connector, while also preventing protective failure due to wear of the protruding part, thus balancing protection and structural stability.

[0008] In the aforementioned ultra-low backflow water-resistant air conditioning hose assembly structure, the crimped sleeve has a groove on its outer circumference near the hose connection end, and the adhesive heat-shrinkable sheath is installed in the groove by heat shrinking the inner side of the crimped sleeve end. The groove of the crimped sleeve fits snugly against the inner side of the heat-shrinkable sheath after heat shrinking. Through physical restraint, the groove holds the heat-shrinkable sheath in place, preventing displacement and ensuring that the sealing performance does not deteriorate during long-term use.

[0009] In the aforementioned ultra-low backflow water-permeable air conditioning hose assembly structure, the diameter of the hose connection portion near the end of the automotive air conditioning hose is larger than the diameter of the automotive air conditioning hose, and the circumferential outer side of the automotive air conditioning hose has an mounting annular groove located between the two hose connection portions. The larger diameter of the hose connection portion near the hose end creates a stepped transition, providing installation support for the aluminum foil sheath tube and restricting the axial movement of the aluminum foil sheath tube through the diameter difference, preventing it from falling off during use.

[0010] In the aforementioned ultra-low backflow water-resistant air conditioning hose assembly structure, the aluminum foil sheath is positioned within the mounting annular groove, and the outer circumferential side of the hose connection near the automotive air conditioning hose is flush with the outer circumferential side of the aluminum foil sheath. The mounting annular groove on the outer side of the hose provides precise installation space for the aluminum foil sheath, ensuring it does not protrude from the hose surface. Simultaneously, the flush alignment of the hose connection with the outer side of the aluminum foil sheath prevents wear caused by localized protrusions, thus extending its service life.

[0011] In the above-mentioned ultra-low backflow water-resistant air conditioning hose assembly structure, the thickness of the adhesive heat-shrinkable sheath is 0.5-2mm, and the thickness of the aluminum foil sheath is 0.5-2mm.

[0012] In the above-mentioned ultra-low backflow water-resistant air conditioning hose assembly structure, the thickness of the crimped sleeve is 0.8-2mm, and the thickness of the automotive air conditioning hose is 3-4.5mm.

[0013] In the aforementioned ultra-low backflow air conditioning hose assembly structure, the hose connectors are made of metal, one hose connector is coaxially arranged with the automotive air conditioning hose, and the other hose connector has a bent structure.

[0014] Compared with existing technologies, the advantages of this utility model are:

[0015] 1. The air conditioning hose assembly structure of this device is simple to assemble, greatly improves the performance of the air conditioning hose assembly, significantly extends the service life of the air conditioning hose assembly, and greatly improves the stable operation of the air conditioning system.

[0016] 2. The temperature generated during the use of the air conditioning hose assembly of this device makes the adhesive heat shrink sleeve more and more secure, and the hot melt adhesive can better fill the small gaps between the aluminum foil sleeve and the rivet sleeve, increasing the air conditioning hose's seal with the outside air.

[0017] 3. The adhesive heat shrink tubing of this device provides a seal that effectively isolates the air conditioning hose from direct contact with the outside air, preventing moisture in the air from seeping back into the hose, greatly improving the reverse water seepage performance, avoiding ice blockage, and ensuring long-term stable operation of the air conditioning system.

[0018] 4. The aluminum foil sheath of this device has certain light reflection properties, which can play a heat insulation role and effectively improve the UV resistance of the air conditioning hose assembly used outdoors, thereby effectively improving the hose's anti-aging performance. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model.

[0020] In the diagram: 1. Automotive air conditioning hose; 11. Mounting ring groove; 2. Riveting sleeve; 21. Hose connector; 22. Connector connector; 23. Groove; 3. Hose connector; 4. Aluminum foil sheath; 5. Adhesive heat shrink sheath. Detailed Implementation

[0021] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0022] like Figure 1As shown, an ultra-low backflow air conditioning hose assembly structure includes an automotive air conditioning hose 1. Both ends of the automotive air conditioning hose 1 are connected to hose connectors 3 via crimped sleeves 2. An aluminum foil sheath 4 is provided around the periphery of the automotive air conditioning hose 1, extending from one end of the hose 1 to the other. Adhesive-coated heat-shrinkable sheaths 5 are provided between both ends of the aluminum foil sheath 4 and the crimped sleeves 2, with both ends of the adhesive-coated heat-shrinkable sheaths 5 extending outwards from both the aluminum foil sheath 4 and the crimped sleeves 2. Utilizing multiple layers of protection, the aluminum foil sheath 4 enhances the hose's anti-aging and heat insulation properties. The adhesive-coated heat-shrinkable sheaths 5, through heat shrink bonding, fill the gaps between the aluminum foil sheath 4 and the crimped sleeves 2, effectively blocking the entry of moisture and dust, reducing backflow. Simultaneously, the aluminum foil sheath 4 extends from one end of the hose to the other, and the adhesive-coated heat-shrinkable sheaths 5 cover the connection area between the aluminum foil sheath 4 and the crimped sleeves 2, achieving comprehensive protection and avoiding the risk of leakage due to localized exposure.

[0023] The crimping sleeve 2 has a hose connection part 21 that connects to the automotive air conditioning hose 1, and the hose connection part 21 is connected to a connector connection part 22 that connects to the hose connector 3. By using the hose connection part 21 and the connector connection part 22 to connect to the hose and the connector respectively, the division of labor is clear, which facilitates accurate positioning during assembly, ensures connection strength and stability, and avoids assembly deviations caused by structural ambiguity.

[0024] Specifically, one end of the adhesive heat-shrinkable sleeve 5 is wrapped around the hose connection 21 outwards, and the other end is wrapped around one end of the aluminum foil sleeve 4 outwards. The adhesive heat-shrinkable sleeve 5, with one end wrapped around the hose connection 21 and the other end wrapped around the aluminum foil sleeve 4, specifically covers the connection gap between the two components. After heat shrinking the inner adhesive, they adhere together to form a sealing strip, further improving the reverse osmosis effect. Simultaneously, the sealing effect of the adhesive heat-shrinkable sleeve 5 effectively prevents the air conditioning hose from direct contact with external ozone, improving the hose's ozone resistance.

[0025] Furthermore, the inner side of the adhesive-coated heat-shrinkable sheath 5 near the automotive air conditioning hose 1 is bonded to the outer side of the aluminum foil sheath 4 near the crimping sleeve 2. The length of the adhesive-coated heat-shrinkable sheath 5 outside the crimping sleeve 2 is less than the length of the crimping sleeve 2. This ensures that the length of the sheath 5 outside the crimping sleeve 2 is less than the length of the crimping sleeve 2, preventing excessive extension of the sheath from affecting the connection strength between the crimping sleeve 2 and the connector, while also preventing protective failure due to wear of the protruding part, thus balancing protection and structural stability.

[0026] Furthermore, the crimping sleeve 2 has a groove 23 on its outer circumference near the hose connection 21, and the adhesive heat-shrinkable sheath 5 is installed in the groove 23 on its inner side near the crimping sleeve 2 by heat shrinking. The groove 23 of the crimping sleeve 2 fits into the inner side of the heat-shrinkable sheath 5 after heat shrinking. Through physical limiting, the groove holds the heat-shrinkable sheath in place, preventing displacement and ensuring that the sealing performance does not deteriorate during long-term use.

[0027] Clearly, the diameter of the hose connector 21 near the end of the automotive air conditioning hose 1 is larger than the diameter of the automotive air conditioning hose 1, and the automotive air conditioning hose 1 has a mounting annular groove 11 located between the two hose connectors 21 on its outer circumference. The diameter of the hose connector 21 near the end of the hose is larger than the diameter of the hose, forming a stepped transition, which not only provides installation support for the aluminum foil sheath tube 4, but also restricts the axial movement of the aluminum foil sheath tube 4 through the diameter difference, preventing it from falling off during use.

[0028] Meanwhile, the aluminum foil sheath 4 is positioned within the mounting groove 11, and the outer circumference of the hose connection 21 near the automotive air conditioning hose 1 is flush with the outer circumference of the aluminum foil sheath 4. The mounting groove 11 on the outer side of the hose provides precise installation space for the aluminum foil sheath 4, ensuring that the aluminum foil sheath 4 does not protrude from the hose surface. Simultaneously, the hose connection 21 is flush with the outer side of the aluminum foil sheath 4, preventing wear caused by localized protrusions and extending its service life.

[0029] Specifically, the thickness of the adhesive heat shrink tubing 5 is 0.5-2mm, and the thickness of the aluminum foil tubing 4 is 0.5-2mm.

[0030] Specifically, the thickness of the rivet sleeve 2 is 0.8-2mm, and the thickness of the automotive air conditioning hose 1 is 3-4.5mm.

[0031] In addition, the hose connector 3 is made of metal, one of which is coaxially mounted with the car air conditioning hose 1, and the other hose connector 3 has a curved structure.

[0032] The principle of this embodiment is as follows:

[0033] The crimped sleeve 2 is crimped and fixed to the automotive air conditioning hose 1 via the hose connection part 21, and connected to the hose connector 3 via the connector connection part 22. Utilizing the rigidity of the metal material and the tightness of the crimping process, it ensures no leakage during media transmission and withstands the pressure of media flow. The aluminum foil sheath tube 4 is installed in the mounting ring groove 11 of the automotive air conditioning hose 1, extending from one end of the hose to the other, forming a complete wrap around the hose body. The aluminum foil material itself has waterproof, moisture-proof, and aging-resistant properties, directly blocking external liquids and moisture from contacting the hose surface, while reducing the impact of ambient temperature changes on the hose interior. The influence of the medium; the adhesive heat shrink tubing 5 covers the connection gap between the aluminum foil tubing 4 and the rivet sleeve 2. After heating, it shrinks and deforms, melting the inner adhesive and tightly adhering to the surfaces of the two components. One end wraps the hose connection part 21, filling the tiny gap between the rivet sleeve 2 and the hose, and the other end wraps the end of the aluminum foil tubing 4 to prevent the sealing failure caused by the edge of the aluminum foil lifting or wear. At the same time, it cooperates with the groove part 23 of the rivet sleeve. The heat-shrinked tubing is embedded in the groove to form a physical limit, preventing the tubing from shifting under working conditions such as vibration and temperature changes, and ensuring long-term sealing effect.

[0034] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

[0035] Although this document frequently uses terms such as automotive air conditioning hose 1, mounting ring groove 11, crimp sleeve 2, hose connector 21, connector connector 22, groove 23, hose connector 3, aluminum foil sheath 4, and adhesive heat shrink sheath 5, the possibility of using other terms is not excluded. The use of these terms is merely for the convenience of describing and explaining the essence of this utility model; interpreting them as any additional limitation would contradict the spirit of this utility model.

Claims

1. A structure for an ultra-low backflow water-repellent air conditioning hose assembly, comprising an automotive air conditioning hose (1), wherein both ends of the automotive air conditioning hose (1) are respectively connected to hose connectors (3) via crimped sleeves (2), characterized in that, The car air conditioning hose (1) is provided with an aluminum foil sheath (4) on its outer circumference. The aluminum foil sheath (4) extends from one end of the car air conditioning hose (1) to the other end. The aluminum foil sheath (4) is provided with an adhesive heat shrink sheath (5) between its two ends and the rivet sleeve (2). The adhesive heat shrink sheath (5) extends to the outer circumference of the aluminum foil sheath (4) and the rivet sleeve (2) at both ends.

2. The ultra-low reverse seepage water-based air conditioning hose assembly structure according to claim 1, characterized in that, The crimp sleeve (2) has a hose connection part (21) connected to the car air conditioning hose (1), and the hose connection part (21) is connected to a connector connection part (22) connected to the hose connector (3).

3. The ultra-low reverse seepage water-based air conditioning hose assembly structure according to claim 2, characterized in that, The adhesive heat shrink tubing (5) is wrapped around the outer side of the hose connection (21) at one end and wrapped around the outer side of the aluminum foil tubing (4) at the other end.

4. The ultra-low reverse water seepage air conditioning hose assembly structure according to claim 1, 2, or 3, characterized in that, The inner side of the adhesive heat shrinkable sleeve (5) near the car air conditioning hose (1) is in contact with the outer side of the aluminum foil sleeve (4) near the rivet sleeve (2). The length of the adhesive heat shrinkable sleeve (5) located outside the rivet sleeve (2) is less than the length of the rivet sleeve (2).

5. The ultra-low reverse water seepage air conditioning hose assembly structure according to claim 2, characterized in that, The rivet sleeve (2) has a groove (23) on the outer side of one end near the hose connection (21), and the adhesive heat shrinkable sleeve (5) is set in the groove (23) on the inner side of one end near the rivet sleeve (2) by heating and shrinking.

6. The ultra-low reverse seepage water-based air conditioning hose assembly structure according to claim 2, characterized in that, The diameter of the hose connection part (21) near the end of the car air conditioning hose (1) is larger than the diameter of the car air conditioning hose (1), and the car air conditioning hose (1) has a mounting annular groove (11) located between the two hose connection parts (21) on the outer circumferential side.

7. The ultra-low reverse seepage water-based air conditioning hose assembly structure according to claim 6, characterized in that, The aluminum foil sheath tube (4) is set in the mounting ring groove (11), and the outer circumferential side of the hose connection part (21) near the car air conditioning hose (1) is flush with the outer circumferential side of the aluminum foil sheath tube (4).

8. The ultra-low reverse water seepage air conditioning hose assembly structure according to claim 1, characterized in that, The thickness of the adhesive heat shrink tubing (5) is 0.5-2mm, and the thickness of the aluminum foil tubing (4) is 0.5-2mm.

9. The structure of an ultra-low reverse water seepage air conditioning hose assembly according to claim 1, characterized in that, The thickness of the rivet sleeve (2) is 0.8-2mm, and the thickness of the automotive air conditioning hose (1) is 3-4.5mm.

10. The structure of an ultra-low reverse water seepage air conditioning hose assembly according to claim 1, characterized in that, The hose connector (3) is made of metal. One hose connector (3) is coaxially arranged with the car air conditioning hose (1), and the other hose connector (3) has a bent structure.

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