Sealing connection structure for automobile air conditioner pipeline

Abstract

The utility model discloses a sealing connection structure for an automobile air conditioner pipeline, which comprises an aluminum pipe, a rubber pipe and a pipe hoop, and a sealing shell is arranged on the surface of the aluminum pipe; a gluing groove is formed in the inner wall of the closed shell, a glue injection opening is formed in the surface of the closed shell, a sealing groove used in cooperation with the gluing groove is formed in the surface of the glue pipe, an extrusion pad is fixed to the inner wall of the closed shell, an airtight cavity is formed in the inner side of the closed shell, and two gas injection channels are formed in the surface of the closed shell. The gas injection channel on one side is communicated with the airtight cavity, the gas injection channel on the other side is communicated with the extrusion pad, clamping shells are arranged on the upper side and the lower side of the surface of the rubber pipe, the clamping shells on the upper side and the lower side are detachably connected through bolts, and compression springs are fixed to the inner walls of the clamping shells. The automobile air conditioner pipeline sealing structure has the advantages that the sealing strength after the rubber pipe and the aluminum pipe are connected can be improved, the rubber pipe and the aluminum pipe are not easy to separate, and the problems that an existing automobile air conditioner pipeline is poor in sealing effect and easy to leak are solved.

Description

Technical Field

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

[0002] The automobile air conditioning system is a device that realizes cooling, heating, ventilation and air purification in the car. Aluminum tubes and rubber hoses are usually used in automobile air conditioning pipelines. The aluminum tubes and rubber hoses need to be sealed. In the prior art, buckle grooves are usually set on the ends of the aluminum tubes, and then glue is applied. Then, the rubber hose is put on the ends of the aluminum tubes, and then a pipe clamp is put on the outer sleeve of the rubber hose to achieve a sealed connection between the rubber hose and the aluminum tube.

[0003] The existing sealing connection method of automobile air-conditioning pipeline still has some defects and shortcomings. Although the pipe clamp, hose and aluminum tube are connected by buckling, with the long-term vibration during the driving of the car, the pipe clamp, hose and aluminum tube will still become loose, resulting in separation between the pipe clamp, hose and aluminum tube, which will also cause refrigerant leakage. Therefore, it is necessary for us to improve the existing equipment to overcome the above defects. Utility Model Content

[0004] The utility model aims to provide a sealing connection structure for automobile air-conditioning pipelines, which has the advantages of being able to improve the sealing strength after the rubber hose and the aluminum tube are connected, making it difficult for the rubber hose and the aluminum tube to separate, and solving the problem that the sealing effect of the current automobile air-conditioning pipelines is poor and prone to leakage.

[0005] To achieve the above object, the utility model provides the following technical solutions: a sealing connection structure for automobile air conditioning pipelines, comprising an aluminum tube, a rubber hose and a pipe clamp, wherein a sealing shell is provided on the surface of the aluminum tube;

[0006] The inner wall of the closed shell is provided with a glue coating groove, the surface of the closed shell is provided with a glue injection port, the surface of the hose is provided with a sealing groove used in conjunction with the glue coating groove, an extrusion pad is fixed to the inner wall of the closed shell, an airtight cavity is provided on the inner side of the closed shell, and two air injection channels are provided on the surface of the closed shell, one side of the air injection channel is connected with the airtight cavity, and the other side of the air injection channel is connected with the extrusion pad, clamping shells are provided on the upper and lower sides of the hose surface, and the upper and lower clamping shells are detachably connected by bolts, a compression spring is fixed to the inner wall of the clamping shell, and a clamping block is fixed to one end of the compression spring, a first rubber ring is sleeved on the surface of the hose, and an inner groove used in conjunction with the first rubber ring is provided on the surface of the hose.

[0007] As a preferred sealing connection structure for automobile air-conditioning pipelines of the utility model, the surface of the rubber hose is provided with a protective sleeve, and the pipe clamp is installed on the surface of the protective sleeve.

[0008] As a preferred sealing connection structure for automobile air-conditioning pipelines of the utility model, second rubber rings are sleeved on both left and right sides of the protective sleeve surface, and a groove for matching with the second rubber ring is opened on the surface of the protective sleeve.

[0009] As a preferred sealing connection structure for automobile air-conditioning pipelines of the utility model, an attraction plate is embedded and fixed on the surface of the aluminum tube, and the attraction plate and the clamping block are both magnets.

[0010] As a preferred sealing connection structure for automobile air-conditioning pipelines of the utility model, one end of the gas injection channel is connected to a gas nozzle, and the gas nozzle is fixedly connected to the surface of the closed shell.

[0011] As a preferred sealing connection structure for automobile air-conditioning pipelines of the utility model, the number of the glue injection ports is four, and the glue injection ports are equidistantly distributed on the surface of the closed shell.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0013] The first rubber ring of the utility model can enter the groove on the surface of the rubber tube, so as to achieve the preliminary sealing and fixing of the aluminum tube and the rubber tube. The glue injection port can inject sealant into the glue coating groove and the sealing groove. The sealant can increase the bonding force between the closed shell and the rubber tube, and improve the stability of the entire structure. The air injection channel can inject compressed air into the airtight cavity and the extrusion pad. When compressed air is injected into the airtight cavity, the surface of the rubber tube located in the airtight cavity will be compressed by the air pressure, so that the surface of the rubber tube is closely attached to the aluminum tube. At the same time, the extrusion pad will expand due to the air pressure, so that the surface of the extrusion pad Wrap the surface of the hose so that the surface of the hose is squeezed, further enhancing the sealing strength between the hose and the surface of the aluminum tube. After the pipe clamp is installed, the connection strength between the aluminum tube and the hose can be further enhanced. After the pipe clamp is installed, the upper and lower clamping shells are placed on the hose surface, and then the upper and lower clamping shells are fixed and installed by bolts. At this time, the clamping block will fit the hose surface, and the compression spring can produce compression deformation, so that the clamping block can be affected by the elastic force to always squeeze the hose surface, thereby preventing movement between the aluminum tube and the hose and improving the overall sealing performance of the aluminum tube and the hose. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0015] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model;

[0016] Figure 3 It is a partial cross-sectional structural schematic diagram of the utility model;

[0017] Figure 4It is a schematic diagram of the partial cross-sectional structure of the utility model.

[0018] In the figure: 1. aluminum tube; 2. rubber hose; 3. pipe clamp; 4. closing shell; 5. glue coating groove; 6. glue injection port; 7. extrusion pad; 8. airtight cavity; 9. air injection channel; 10. clamping shell; 11. compression spring; 12. clamping block; 13. protective cover; 14. first rubber ring; 15. air nozzle; 16. second rubber ring; 17. suction plate. DETAILED DESCRIPTION

[0019] See also Figure 1-Figure 4 , a sealing connection structure for automobile air conditioning pipelines, comprising an aluminum tube 1, a rubber tube 2 and a pipe clamp 3, wherein a sealing shell 4 is arranged on the surface of the aluminum tube 1;

[0020] The aluminum tube 1 , the rubber hose 2 and the pipe clamp 3 form a basic air conditioning pipeline connection system, and the sealing shell 4 is used to improve the sealing effect between the aluminum tube 1 and the rubber hose 2 .

[0021] A glue coating groove 5 is provided on the inner wall of the closed shell 4, a glue injection port 6 is provided on the surface of the closed shell 4, a sealing groove used in conjunction with the glue coating groove 5 is provided on the surface of the rubber hose 2, an extrusion pad 7 is fixed on the inner wall of the closed shell 4, an airtight cavity 8 is provided on the inner side of the closed shell 4, two gas injection channels 9 are provided on the surface of the closed shell 4, one side of the gas injection channel 9 is connected to the airtight cavity 8, and the other side of the gas injection channel 9 is connected to the extrusion pad 7, a clamping shell 10 is provided on both the upper and lower sides of the surface of the rubber hose 2, and the upper and lower clamping shells 10 are detachably connected by bolts, a compression spring 11 is fixed on the inner wall of the clamping shell 10, and a clamping block 12 is fixed on one end of the compression spring 11, a first rubber ring 14 is sleeved on the surface of the rubber hose 2, and an inner groove used in conjunction with the first rubber ring 14 is provided on the surface of the rubber hose 2;

[0022] During installation, firstly, the first rubber ring 14 is sleeved onto the surface of the rubber tube 2, and then the rubber tube 2 is sleeved onto the surface of the aluminum tube 1, and one end of the rubber tube 2 is moved to the inside of the closed shell 4 and contacts its inner wall. At this time, the first rubber ring 14 is moved so that the first rubber ring 14 can enter the groove on the surface of the rubber tube 2, thereby achieving a preliminary sealing and fixing of the aluminum tube 1 and the rubber tube 2. Then, sealant is injected into the glue coating groove 5 and the sealing groove through the glue injection port 6. The sealant can not only provide a sealing effect, but also increase the adhesion between the closed shell 4 and the rubber tube 2, thereby improving the stability of the entire structure. Afterwards, compressed air is injected into the airtight cavity 8 and the extrusion pad 7 through the air injection channel 9. When compressed air is injected into the airtight cavity 8, the surface of the rubber tube 2 located in the airtight cavity 8 will be compressed by the air pressure, so that the surface of the rubber tube 2 fits tightly to the aluminum tube. 1, and at the same time, the extrusion pad 7 will expand under the influence of air pressure, so that the surface of the extrusion pad 7 will wrap the surface of the hose 2, so that the surface of the hose 2 is squeezed, further enhancing the sealing strength between the hose 2 and the surface of the aluminum tube 1, so that the hose 2 is not easy to move on the surface of the aluminum tube 1, and then the pipe clamp 3 can be installed, so that the pipe clamp 3 can further enhance the connection strength between the aluminum tube 1 and the hose 2. After the installation of the pipe clamp 3 is completed, the upper and lower clamping shells 10 are placed on the surface of the hose 2, and then the upper and lower clamping shells 10 are fixed and installed by bolts. At this time, the clamping block 12 will fit the surface of the hose 2, and the compression spring 11 can produce compression deformation, so that the clamping block 12 can be affected by the elastic force to always squeeze the surface of the hose 2, thereby preventing the aluminum tube 1 and the hose 2 from moving, and improving the overall sealing performance of the aluminum tube 1 and the hose 2.

[0023] Furthermore, a protective sleeve 13 is provided on the surface of the rubber hose 2, and the pipe clamp 3 is installed on the surface of the protective sleeve 13;

[0024] The protective sleeve 13 can absorb the impact force generated when the pipe clamp 3 vibrates, so that the pipe clamp 3 will not cause pressure damage and wear to the hose 2.

[0025] Furthermore, the second rubber ring 16 is sleeved on both the left and right sides of the protective sleeve 13, and a groove is provided on the surface of the protective sleeve 13 to cooperate with the second rubber ring 16;

[0026] The second rubber ring 16 can be sleeved on the surface of the protective sleeve 13, so that the protective sleeve 13 can fit tightly on the surface of the hose 2, and the second rubber ring 16 can squeeze the protective sleeve 13 and the hose 2 to improve the sealing between the hose 2 and the aluminum tube 1. The setting of the groove enables the second rubber ring 16 to obtain a certain limiting effect, so that the second rubber ring 16 is not easy to move after being sleeved.

[0027] Furthermore, an attraction plate 17 is embedded and fixed on the surface of the aluminum tube 1, and both the attraction plate 17 and the clamping block 12 are magnets;

[0028] When the clamping block 12 is pressed against the surface of the hose 2 by the elastic force of the compression spring 11, the magnets can attract each other, and the attraction between the magnets can create an additional tight contact force between the hose 2 and the aluminum tube 1, thereby improving the overall sealing effect.

[0029] Furthermore, one end of the gas injection channel 9 is connected to a gas nozzle 15, and the gas nozzle 15 is fixedly connected to the surface of the sealing shell 4;

[0030] The gas nozzle 15 serves as an interface between the gas injection channel 9 and the outside, which facilitates the operator to safely and conveniently perform gas injection or release operations. It is not only a control point for gas input, but also an entrance for monitoring the pressure status in the airtight chamber 8 and performing maintenance operations. It can realize the injection of compressed air into the gas injection channel 9, or connect to the air pressure detection equipment to detect the air pressure.

[0031] Furthermore, there are four glue injection ports 6, which are evenly distributed on the surface of the closed shell 4;

[0032] The four equidistantly distributed glue injection ports 6 can ensure that the sealant is evenly distributed in the glue coating groove 5 to avoid local excess or deficiency, so that a more uniform and reliable sealing effect can be obtained, while also reducing the generation of bubbles and improving the sealing quality.

[0033] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A sealing connection structure for automobile air conditioning pipelines, comprising an aluminum tube (1), a rubber tube (2) and a pipe clamp (3), characterized in that: A sealing shell (4) is provided on the surface of the aluminum tube (1); The inner wall of the sealing shell (4) is provided with a glue coating groove (5), the surface of the sealing shell (4) is provided with a glue injection port (6), the surface of the rubber tube (2) is provided with a sealing groove used in conjunction with the glue coating groove (5), the inner wall of the sealing shell (4) is fixed with an extrusion pad (7), the inner side of the sealing shell (4) is provided with an airtight cavity (8), the surface of the sealing shell (4) is provided with two gas injection channels (9), one side of the gas injection channel (9) is connected to the airtight cavity (8), and the other side of the gas injection channel (9) is connected to the extrusion pad (7), the upper and lower sides of the surface of the rubber tube (2) are provided with clamping shells (10), the upper and lower clamping shells (10) are detachably connected by bolts, the inner wall of the clamping shell (10) is fixed with a compression spring (11), one end of the compression spring (11) is fixed with a clamping block (12), the surface of the rubber tube (2) is sleeved with a first rubber ring (14), and the surface of the rubber tube (2) is provided with an inner groove used in conjunction with the first rubber ring (14).

2. A sealing connection structure for automobile air conditioning pipelines according to claim 1, characterized in that: The surface of the rubber hose (2) is provided with a protective sleeve (13), and the pipe clamp (3) is installed on the surface of the protective sleeve (13).

3. A sealing connection structure for automobile air conditioning pipeline according to claim 2, characterized in that: The second rubber ring (16) is sleeved on both left and right sides of the surface of the protective sleeve (13), and a groove for matching with the second rubber ring (16) is provided on the surface of the protective sleeve (13).

4. The sealing connection structure for automobile air conditioning pipeline according to claim 1, characterized in that: An attraction plate (17) is embedded and fixed on the surface of the aluminum tube (1), and the attraction plate (17) and the clamping block (12) are both magnets.

5. The sealing connection structure for automobile air conditioning pipeline according to claim 1, characterized in that: One end of the gas injection channel (9) is connected to a gas nozzle (15), and the gas nozzle (15) is fixedly connected to the surface of the sealing shell (4).

6. The sealing connection structure for automobile air conditioning pipeline according to claim 1, characterized in that: The number of the glue injection ports (6) is four, and the glue injection ports (6) are equidistantly distributed on the surface of the closed shell (4).

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