Sealing structure for air conditioner pipeline plug

Abstract

The utility model relates to a sealing structure for an air conditioner pipeline plug, which comprises a copper pipe, the copper pipe comprises a straight pipe, the end part of the straight pipe is provided with a horn mouth, the copper pipe is provided with a copper sleeve, the copper sleeve is internally provided with a plug, the plug is abutted in the horn mouth, the plug is provided with an abutting part and a fixing part from left to right, and the fixing part is provided with a through hole. A second sealing gasket is fixed to the periphery of the abutting part, the periphery of the second sealing gasket abuts against the inner wall of the horn mouth, a first sealing gasket is arranged in the copper sleeve, and the periphery of the horn mouth abuts against the inner side of the first sealing gasket. According to the sealing structure for the air conditioner pipeline plug, the periphery of the second sealing gasket abuts against the inner wall of the horn mouth so that the sealing effect can be improved when the plug is connected with the horn mouth, and meanwhile the periphery of the second sealing gasket abuts against the inner wall of the horn mouth so that the friction force between the copper sleeve and the horn mouth can be further increased after the plug is plugged; the sealing effect of the plugging head during plugging is improved.

Description

Technical Field

[0001] This utility model relates to the field of air conditioning equipment technology, specifically a sealing structure for air conditioning pipe plugs. Background Technology

[0002] Air conditioning piping includes long-length air conditioning piping, which refers to the use of longer copper pipes to connect the indoor and outdoor units during air conditioning installation. The long-length air conditioning piping is used to connect the indoor and outdoor units, allowing the refrigerant to circulate between them. The refrigerant is compressed and condensed in the outdoor unit, and evaporates and absorbs heat in the indoor unit, thereby achieving cooling or heating.

[0003] In existing technology, air conditioning long-length piping is a separate assembly before installation. Before installation, in order to seal the piping, a plug is usually used to seal the end of the piping to ensure the cleanliness of the inside of the piping. However, during the transportation of air conditioning long-length piping, the sealed plug is prone to loosening under the influence of external factors, resulting in gaps at the sealing point, thus limiting its sealing effect. Therefore, a sealing structure for air conditioning pipe plugs is proposed to solve the above problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a sealing structure for air conditioning pipe plugs, which has advantages such as good sealing effect and solves the problem of poor sealing effect.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a sealing structure for an air conditioning pipe plug, comprising a copper pipe, the copper pipe including a straight pipe, the end of the straight pipe being a flared opening, a copper sleeve being provided on the copper pipe, and a plug being provided inside the copper sleeve, the plug abutting against the flared opening;

[0006] The sealing head has an abutment portion and a fixing portion formed from left to right. A second sealing gasket is fixed on the outer periphery of the abutment portion, and the outer periphery of the second sealing gasket abuts against the inner wall of the flared mouth. An external thread is fixed on the outer periphery of the fixing portion. The right end face of the flared mouth abuts against the left end face of the fixing portion. A connecting area, an abutment area, and a locking area are formed sequentially from left to right on the inner wall of the copper sleeve. The connecting area abuts against the outer periphery of the straight pipe near the flared mouth. A groove is provided at the abutment area, and a first sealing gasket is fixed in the groove. The outer periphery of the flared mouth abuts against the inner side of the first sealing gasket. A threaded groove is provided on the locking area, and the external thread is threadedly connected to the threaded groove. The outer periphery of the fixing portion abuts against the inner wall of the locking area.

[0007] Furthermore, the abutting part is frustum-shaped, and the abutting area is adapted to the flared opening.

[0008] Furthermore, a protrusion is fixed to the right side of the fixing part, and the protrusion is a cross block.

[0009] Furthermore, the copper sleeve is movably fitted onto the outside of the copper tube, and the copper sleeve moves linearly on the outside of the copper tube.

[0010] Furthermore, the diameter of the horn-shaped opening gradually increases from left to right.

[0011] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0012] This sealing structure for air conditioning duct plugs improves the sealing effect when the plug is connected to the flared end by pressing the outer periphery of the second sealing gasket against the inner wall of the flared end. The increased friction between the two prevents the plug from loosening during transport due to external factors. Furthermore, the tightness between the outer periphery of the second sealing gasket and the inner wall of the flared end further increases the friction between the copper sleeve and the flared end after plugging. The cooperation between the first and second sealing gaskets effectively improves the sealing effect of the plug during plugging. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0014] Figure 2 This is a schematic diagram of the internal structure of the copper sleeve in this utility model;

[0015] Figure 3 This is a cross-sectional view of the copper sleeve in this utility model;

[0016] Figure 4 This is a cross-sectional view of the sealing head in this utility model.

[0017] In the diagram: 1 copper pipe, 11 straight pipe, 12 flared mouth, 2 copper sleeve, 21 first sealing gasket, 22 groove, 23 connecting area, 24 abutting area, 25 locking area, 26 threaded groove, 3 sealing plug, 31 protrusion, 32 abutting part, 33 external thread, 34 fixing part, 35 second sealing gasket. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example

[0019] Please see Figure 1-4This embodiment provides a sealing structure for an air conditioning duct plug, comprising a copper pipe 1, a straight pipe 11, and a flared end 12. A copper sleeve 2 is provided on the copper pipe 1, and a plug 3 is provided inside the copper sleeve 2, abutting against the inside of the flared end 12. The plug 3 has an abutting portion 32 and a fixing portion 34 formed from left to right on the plug 3. A second sealing gasket 35 is fixed on the outer periphery of the abutting portion 32, and the outer periphery of the second sealing gasket 35 abuts against the inner wall of the flared end 12. An external thread 33 is fixed on the outer periphery of the fixing portion 34. The right end face of the sleeve 2 abuts against the left end face of the fixing part 34. The inner wall of the copper sleeve 2 is formed from left to right with a connecting area 23, an abutting area 24, and a locking area 25. The connecting area 23 abuts against the outer periphery of the straight tube 11 near the flared mouth 12. A groove 22 is provided at the abutting area 24. A first sealing gasket 21 is fixed in the groove 22. The outer periphery of the flared mouth 12 abuts against the inner side of the first sealing gasket 21. A threaded groove 26 is provided on the locking area 25. The external thread 33 is threadedly connected to the threaded groove 26. The outer periphery of the fixing part 34 abuts against the inner wall of the locking area 25.

[0020] In application, the sealing head 3 is connected to the copper sleeve 2 to seal the copper pipe 1, preventing foreign matter from entering the interior of the copper pipe 1. During sealing, first move the copper sleeve 2 so that the connecting area 23 abuts against the connection between the straight pipe 11 and the flared end 12. At this time, the outer periphery of the flared end 12 abuts against the inner wall of the first sealing gasket 21. Then, move the sealing head 3 into the copper sleeve 2. When moving into the copper sleeve 2, the abutting part 32 first passes through the locking area 25 and then reaches the abutting area 24. After the abutting part 32 reaches the abutting area 24, the outer periphery of the second sealing gasket 35 abuts against the inner wall of the flared end 12. Then, rotate the fixing part 34. As the fixing part 34 rotates, the external thread 33 and the threaded groove 26 cooperate to connect the sealing head 3 to the copper sleeve 2. With the continuous rotation of the fixing part 34, the abutting part 3 abuts against the inner wall of the flared end 12. The connecting part 32 can also be gradually moved into the flared mouth 12, so that the outer periphery of the second sealing gasket 35 abuts against the inner wall of the flared mouth 12. As the fixing part 34 rotates continuously, the first sealing gasket 21 can also abut against the inner wall of the flared mouth 12. In summary, by abutting the outer periphery of the second sealing gasket 35 against the inner wall of the flared mouth 12, the sealing effect when the plugging head 3 is connected to the flared mouth 12 can be improved, and the friction between the two increases, which can prevent the plugging head 3 from loosening due to external factors during transportation. At the same time, abutting the outer periphery of the second sealing gasket 35 against the inner wall of the flared mouth 12 can also further increase the friction between the copper sleeve 2 and the flared mouth 12 after the plugging head 3 is plugged. With the cooperation between the first sealing gasket 21 and the second sealing gasket 35, the sealing effect of the plugging head 3 during plugging can be effectively improved. Example

[0021] The basic content is from Example 1, the difference being:

[0022] Please see Figure 2-3In this embodiment, the abutting part 32 is frustum-shaped, the abutting area 24 is adapted to the flared mouth 12, the right side of the fixing part 34 is fixed with a protrusion 31, the protrusion 31 is a cross block, the copper sleeve 2 is movably sleeved on the outside of the copper tube 1, the copper sleeve 2 moves linearly on the outside of the copper tube 1, and the diameter of the flared mouth 12 gradually increases from left to right.

[0023] In application, after the frustum-shaped abutment part 32 enters the flared mouth 12, the protrusion 31 allows the sealing head 3 to be easily rotated, so that the sealing head 3 can be connected to the copper sleeve 2.

[0024] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A sealing structure for an air conditioning duct plug, comprising a copper pipe (1), characterized in that: The copper pipe (1) includes a straight pipe (11), the end of the straight pipe (11) is set as a flared mouth (12), a copper sleeve (2) is provided on the copper pipe (1), a sealing head (3) is provided inside the copper sleeve (2), and the sealing head (3) abuts against the flared mouth (12); The sealing head (3) has an abutment part (32) and a fixing part (34) formed from left to right. A second sealing gasket (35) is fixed on the outer periphery of the abutment part (32). The outer periphery of the second sealing gasket (35) abuts against the inner wall of the flared mouth (12). An external thread (33) is fixed on the outer periphery of the fixing part (34). The right end face of the flared mouth (12) abuts against the left end face of the fixing part (34). The inner wall of the copper sleeve (2) has a connecting area (23), an abutment area (24), and a locking area formed from left to right. The connecting area (23) abuts against the outer periphery of the straight pipe (11) near the flared mouth (12). A groove (22) is provided at the abutting area (24). A first sealing gasket (21) is fixed in the groove (22). The outer periphery of the flared mouth (12) abuts against the inner side of the first sealing gasket (21). A threaded groove (26) is provided on the locking area (25). The external thread (33) is threadedly connected to the threaded groove (26). The outer periphery of the fixing part (34) abuts against the inner wall of the locking area (25).

2. The sealing structure for an air conditioning duct plug according to claim 1, characterized in that: The abutting part (32) is frustum-shaped, and the abutting area (24) is adapted to the flared mouth (12).

3. A sealing structure for an air conditioning duct plug according to claim 1, characterized in that: The right side of the fixing part (34) is fixed with a protrusion (31), which is a cross block.

4. A sealing structure for an air conditioning duct plug according to claim 1, characterized in that: The copper sleeve (2) is movably fitted onto the outside of the copper tube (1), and the copper sleeve (2) moves linearly on the outside of the copper tube (1).

5. A sealing structure for an air conditioning duct plug according to claim 1, characterized in that: The diameter of the flared mouth (12) gradually increases from left to right.

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