Quick connector for air conditioner pipeline connection

Abstract

The utility model discloses a quick connector for air conditioner pipeline connection, and relates to the technical field of pipeline connectors. The air conditioner pipeline connection quick connector comprises a male connector body and a female connector body, the outer portion of the end, corresponding to the female connector body, of the male connector body is movably sleeved with a male connector sleeve, the other end of the male connector body is rotationally connected with a male connector clamping base, and a first sealing groove is formed in the inner wall of the male connector body; a first sealing groove is formed in the middle of the male head body, a first sealing ring is clamped and mounted in the first sealing groove, a male head valve element head is arranged in an inner cavity of the male head body, the first sealing ring is attached to the outer wall of the male head valve element head, a second sealing groove is formed in the middle of the male head valve element head, and a second sealing ring is clamped and mounted in the second sealing groove; according to the air conditioner pipeline connection quick-change connector, under the condition that a pipeline is in pressure connection, leakage is avoided, and the reliability of a system is improved.

Description

Technical Field

[0001] This utility model relates to the field of pipe fitting technology, specifically a quick connector for air conditioning pipe connections. Background Technology

[0002] A quick coupling is a connector that enables rapid connection or disconnection of pipelines. It consists of two parts: a male and a female. When the male and female parts are connected, the pipeline is connected; when they are disconnected, the pipeline is disconnected. Under normal circumstances, the male and female parts in the hydraulic pipeline must maintain good sealing performance when connected and disconnected to prevent leakage. As long as there is no residual pressure in the pipeline, there will be no problem with the seal.

[0003] In air conditioning pipes containing refrigerant under pressure, the seals of the male and female connectors are easily crushed by the valve core of the female connector under the combined action of connection force and residual pressure, causing the sealing system of the male connector to fail and resulting in pipe leaks. Therefore, we have proposed a quick-connect fitting for air conditioning pipes to solve the above-mentioned problems. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this utility model provides a quick-connect fitting for air conditioning pipes, which solves the problem of residual pressure leakage associated with existing fittings.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a quick-connect fitting for air conditioning pipes, comprising a male connector body and a female connector body. A male sleeve is movably sleeved onto one end of the male connector body corresponding to the female connector body. A male connector holder is rotatably connected to the other end of the male connector body. A first sealing groove is formed on the inner wall of the male connector body, and a first sealing ring is fitted into the first sealing groove. A male valve core is provided within the inner cavity of the male connector body. The first sealing ring fits against the outer wall of the male valve core. The male valve core has a second sealing groove in the middle, and a second sealing ring is snapped into the second sealing groove. The outer wall of one end of the male valve core has a first external thread, and a male valve sleeve is provided at one end of the male valve core. The male valve sleeve and the male valve sleeve are provided with a first internal thread at one end of the male valve core. The male valve core and the male valve sleeve are detachably connected by threads. A sleeve spring is movably embedded at one end of the male valve sleeve. A male base is provided at the other end of the inner cavity of the male body, and the male base is connected to the sleeve spring.

[0006] Preferably, the male head body has a boss uniformly provided on the middle outer circumference, and the boss is evenly distributed with three right-angle openings.

[0007] Preferably, the inner wall of the male head body is provided with a boss, and three groups of bosses are arranged horizontally. The outer diameters of the three groups of bosses are different, and the outer diameters of the bosses decrease from left to right.

[0008] Preferably, the outer wall of the male head body is provided with a third sealing groove, and a third sealing ring, a fourth sealing ring and a fifth sealing ring are installed in the third sealing groove.

[0009] Preferably, the male head body has a second external thread near the third sealing groove, and the male head body and the male head seat are detachably connected by threads.

[0010] Preferably, the outer wall of the male valve sleeve is provided with a boss, the end of the male valve sleeve near the male valve core is horizontal, the other end of the male valve sleeve is inclined, the middle part of the male valve sleeve is milled on both sides, and a right-angle groove is opened at the horizontal end of the male valve sleeve.

[0011] The male valve sleeve has a second internal thread on its inner wall. The male valve core and the male valve sleeve are detachably connected by the thread. The other end of the male valve sleeve has a mounting hole, and the inner cavity of the mounting hole is inserted and connected to one end of the sleeve spring.

[0012] Preferably, a valve stem is provided at one end of the male head base, and one end of the valve stem is connected to the sleeve spring. Six through holes are provided at the other end of the male head base, and the six through holes are evenly distributed around the valve stem. The male head base is fixedly inserted into one end of the male head holder.

[0013] Preferably, the female head body has a third external thread on its exterior, an eleventh sealing ring is embedded in the outer wall of the female head body, and a right-angle engaging groove is formed in the inner wall of the female head body.

[0014] Preferably, a valve core assembly is provided in the female head body, and a female head base is provided at one end of the female head body, wherein one end of the valve core assembly is embedded in the female head base, and the female head body is threadedly connected to the female head base.

[0015] The valve core assembly consists of a female valve stem, a sixth sealing ring, a sealing base, a female first valve sleeve, a female second valve sleeve, a first spring, a seventh sealing ring, an eighth sealing ring, a female valve core base, a ninth sealing ring, a tenth sealing ring, and a female retaining seat.

[0016] A second valve sleeve is provided in the middle of the inner cavity of the first valve sleeve of the female head, and a female valve stem is inserted into one end of the second valve sleeve. A sixth sealing ring and a sealing base are sleeved on the female valve stem at the connection point with the second valve sleeve. A first spring is sleeved on the outside of the second valve sleeve. A female valve core base is inserted into one end of the second valve sleeve. A fourth sealing groove is opened on the inner wall of the female valve core base on one side of the second valve sleeve. A seventh sealing ring and an eighth sealing ring are provided in the inner cavity of the fourth sealing groove. A second spring is sleeved on the outside of the female valve core base. One end of the second spring is connected to the first valve sleeve. A ninth sealing ring and a tenth sealing ring are provided on the outer side of one end of the female valve core base. A female retainer is inserted into one end of the inner cavity of the female valve core base. Beneficial effects

[0017] This utility model provides a quick-connect coupling for air conditioning pipes. Compared with the prior art, it has the following advantages:

[0018] This air conditioning pipe connection quick connector, through the connecting thread, allows the internal locking element to move freely. First, insert the female head body into the male head sleeve, rotate the thread, and the male and female quick connectors move relative to each other. The female head valve stem pushes the male head valve core to move, and the male head body pushes the female head first valve sleeve to move. When the female head valve stem passes the male head first sealing ring, the male head second sealing ring passes through the first cavity of the male head body and enters the second cavity. At this time, it can be ensured that the pressure in the pipe and the female head second valve sleeve will not crush the first seal. The sealing performance of the male and female connection can still be maintained well, which further ensures the reliability of the system. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall cross-sectional structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the cross-sectional structure of the male and female connector semi-connection of this utility model;

[0021] Figure 3 This is a schematic diagram of the cross-sectional structure of the male and female connector of this utility model;

[0022] Figure 4 This is a schematic diagram of the cross-sectional structure of the male head body of this utility model;

[0023] Figure 5 This is a schematic diagram of the cross-sectional structure of the male valve core of this utility model;

[0024] Figure 6 This is a schematic cross-sectional view of the male valve sleeve of this utility model.

[0025] In the diagram: 1. Male connector body; 2. First sealing ring; 3. Male valve core; 4. Second sealing ring; 5. Male valve sleeve; 6. Sleeve spring; 7. Male sleeve; 8. Male base; 9. Third sealing ring; 10. Fourth sealing ring; 11. Fifth sealing ring; 12. Male connector retainer; 13. Female connector body; 14. Female valve stem; 15. Sixth sealing ring; 16. Sealing base; 17. First valve sleeve of female connector; 18. Second valve sleeve of female connector; 19. First spring; 20. Seventh sealing ring; 21. Eighth sealing ring; 22. Second spring; 23. Female valve core base; 24. Ninth sealing ring; 25. Tenth sealing ring; 26. Female retainer; 27. Eleventh sealing ring; 28. Female base. Detailed Implementation

[0026] 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.

[0027] Please see Figures 1-6 This utility model provides a technical solution: a quick connector for air conditioning pipe connections, including a male connector body 1 and a female connector body 13. A male connector sleeve 7 is movably sleeved on one end of the male connector body 1 corresponding to the female connector body 13. A male connector seat 12 is rotatably connected to the other end of the male connector body 1. A first sealing groove is formed on the inner wall of the male connector body 1, and a first sealing ring 2 is snapped into the first sealing groove. A male valve core 3 is provided in the inner cavity of the male connector body 1. The first sealing ring 2 fits against the outer wall of the male valve core 3. The core 3 has a second sealing groove in the middle, and a second sealing ring 4 is snapped into the second sealing groove. The outer wall of one end of the male valve core 3 has a first external thread. A male valve sleeve 5 is provided at one end of the male valve core 3. A first internal thread is provided on the male valve sleeve 5 and at one end of the male valve core 3. The male valve core 3 and the male valve sleeve 5 are detachably connected by threads. A sleeve spring 6 is movably embedded at one end of the male valve sleeve 5. A male base 8 is provided at the other end of the inner cavity of the male body 1. The male base 8 is connected to the sleeve spring 6.

[0028] First, insert the female head body 13 into the male head sleeve 7, rotate the thread, and the male quick connector and female quick connector move relative to each other. The female head valve stem 14 pushes the male head valve core 3 to move, and the male head body 1 pushes the female head first valve sleeve 17 to move. When the female head valve stem 14 passes the male head first sealing ring 2, the male head second sealing ring 4 passes through the first cavity of the male head body 1 and enters the second cavity. At this time, it can be ensured that the pressure in the pipeline and the female head second valve sleeve 18 will not crush the first seal. Continue to rotate the thread until it can no longer be turned, ensuring that the male head body 1 and the female head body 13 are against each other. This connector is simple to operate, effectively avoids the risk of leakage when the pipeline is connected with residual pressure, improves the reliability of the system seal, and reduces the need for maintenance operations.

[0029] See Figures 1-4 The male head body 1 has a boss on its outer circumference in the middle, and the boss has three right-angle openings evenly distributed on it, which can be used as tool holes for wrenches to facilitate threaded connection between the male head body 1 and the male head holder.

[0030] See Figures 1-4 The male head body 1 has a boss on its inner wall, and three sets of bosses are arranged horizontally. The outer diameters of the three sets of bosses are different, and the outer diameters of the bosses decrease from left to right. The outer wall of the male head body 1 has a third sealing groove, and a third sealing ring 9, a fourth sealing ring 10 and a fifth sealing ring 11 are installed in the third sealing groove. The male head body 1 has a second external thread near the third sealing groove. The male head body 1 and the male head holder 12 are detachably connected by threads.

[0031] See Figures 1-3 The outer wall of the male valve sleeve 5 is provided with a boss. The end of the male valve sleeve 5 near the male valve core 3 is horizontal, and the other end of the male valve sleeve 5 is inclined. The middle part of the male valve sleeve 5 is milled on both sides. The horizontal end of the male valve sleeve 5 is provided with a right-angle groove. The inner wall of the male valve sleeve 5 is provided with a second internal thread. The male valve core 3 and the male valve sleeve 5 are detachably connected by threads. The other end of the male valve sleeve 5 is provided with a mounting hole. The inner cavity of the mounting hole is inserted and connected to one end of the sleeve spring 6.

[0032] See Figures 1-3 The male head base 8 has a valve stem at one end, which is connected to the sleeve spring 6. The other end of the male head base 8 has six through holes, which are evenly distributed around the valve stem. The male head base 8 is fixedly inserted into one end of the male head socket 12.

[0033] See Figures 1-3 The female head body 13 has a third external thread on its exterior, an eleventh sealing ring 27 is embedded in the outer wall of the female head body 13, and a right-angle engaging groove is formed in the inner wall of the female head body 13.

[0034] See Figures 1-3The female head body 13 is provided with a valve core assembly, and a female head base 28 is provided at one end of the female head body 13. One end of the valve core assembly is embedded in the female head base 28, and the female head body 13 and the female head base 28 are threadedly connected.

[0035] The valve core assembly consists of a female valve stem 14, a sixth sealing ring 15, a sealing base 16, a female first valve sleeve 17, a female second valve sleeve 18, a first spring 19, a seventh sealing ring 20, an eighth sealing ring 21, a female valve core base 23, a ninth sealing ring 24, a tenth sealing ring 25, and a female retainer 26.

[0036] A second valve sleeve 18 is provided in the middle of the inner cavity of the first valve sleeve 17, and a valve stem 14 is inserted into one end of the second valve sleeve 18. A sixth sealing ring 15 and a sealing base 16 are sleeved on the valve stem 14 and at the connection with the second valve sleeve 18. A first spring 19 is sleeved on the outside of the second valve sleeve 18. A valve core base 23 is inserted into one end of the second valve sleeve 18. A fourth sealing groove is opened on the inner wall of the valve core base 23 and on one side of the second valve sleeve 18. A seventh sealing ring 20 and an eighth sealing ring 21 are provided in the inner cavity of the fourth sealing groove. A second spring 22 is sleeved on the outside of the valve core base 23. One end of the second spring 22 is connected to the first valve sleeve 17. A ninth sealing ring 24 and a tenth sealing ring 25 are provided on the outer side of one end of the valve core base 23. A female retainer 26 is inserted into one end of the inner cavity of the valve core base 23.

[0037] During operation, first insert the female head body 13 into the male head sleeve 7, rotate the thread, and the male quick connector and female quick connector move relative to each other. The female head valve stem 14 pushes the male head valve core 3 to move, and the male head body 1 pushes the female head first valve sleeve 17 to move. When the female head valve stem 14 passes through the male head first sealing ring 2, the male head second sealing ring 4 passes through the first cavity of the male head body 1 and enters the second cavity. At this time, it can be ensured that the pressure in the pipeline and the female head second valve sleeve 18 will not crush the first seal. Continue to rotate the thread until it can no longer be turned, ensuring that the male head body 1 and the female head body 13 are in contact. This connector is easy to operate, effectively avoids the risk of leakage when the pipeline is connected with residual pressure, improves the reliability of the system seal, and reduces the need for maintenance operations.

[0038] In summary, the quick-connect fittings for the air conditioning piping of this device prevent leaks when the piping is under pressure, thus increasing system reliability.

[0039] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

Claims

1. An air conditioner pipe connection quick coupling comprising a male head body (1) and a female head body (13), characterized in that: The male head body (1) is movably sleeved with a male sleeve (7) at one end of the female head body (13), the other end of the male head body (1) is rotatably connected with a male clamping seat (12), a first sealing groove is formed in the inner wall of the male head body (1), a first sealing ring (2) is clamped and mounted in the first sealing groove, a male valve core (3) is arranged in the inner cavity of the male head body (1), the first sealing ring (2) is attached to the outer wall of the male valve core (3), a second sealing groove is formed in the middle of the male valve core (3), a second sealing ring (4) is clamped and mounted in the second sealing groove, a first external thread is formed in the outer wall of one end of the male valve core (3), a male valve sleeve (5) is arranged at one end of the male valve core (3), a first internal thread is formed in the male valve sleeve (5) at one end of the male valve core (3), the male valve core (3) and the male valve sleeve (5) are threadedly detachably connected, a sleeve rod spring (6) is movably embedded at one end of the male valve sleeve (5), a male base (8) is arranged at the other end of the inner cavity of the male head body (1), and the male base (8) is connected with the sleeve rod spring (6).

2. The quick coupling of claim 1, wherein: The middle of the male head body (1) is integrally provided with a boss, and three right-angle openings are uniformly formed in the boss.

3. The quick coupling of claim 1, wherein: The inner wall of the male head body (1) is provided with a boss, and three groups of bosses are arranged in the horizontal direction, the outer diameters of the three groups of bosses are different, and the outer diameters of the bosses decrease from left to right.

4. The quick coupling of claim 1, wherein: The outer wall of the male head body (1) is provided with a third sealing groove, and the third sealing groove is provided with a third sealing ring (9), a fourth sealing ring (10) and a fifth sealing ring (11).

5. A quick-connect fitting for air conditioning pipes according to claim 1, characterized in that: A second external thread is formed in the male head body (1) near the third sealing groove, and the male head body (1) and the male clamping seat (12) are threadedly detachably connected.

6. An air conditioner line connection quick coupling according to claim 1, characterized in that: The outer wall of the male valve sleeve (5) is provided with a boss, the male valve sleeve (5) is horizontal near one end of the male valve core (3), the other end of the male valve sleeve (5) is inclined, the middle part of the male valve sleeve (5) is milled on both sides, and a right-angle groove is formed in the horizontal end of the male valve sleeve (5). A second internal thread is formed in the inner wall of the male valve sleeve (5), the male valve core (3) and the male valve sleeve (5) are threadedly detachably connected, and a mounting hole is formed in the other end of the male valve sleeve (5), and the inner cavity of the mounting hole is connected with one end of the sleeve rod spring (6) in plug connection.

7. The quick coupling of claim 1, wherein: A valve rod is formed in one end of the male base (8), one end of the valve rod is connected with the sleeve rod spring (6), six through holes are formed in the other end of the male base (8), the six through holes are uniformly distributed around the valve rod, and the male base (8) is fixedly plugged in one end of the male clamping seat (12).

8. The quick coupling of claim 1, wherein: The outer wall of the male head body (13) is provided with a third external thread, the outer wall of the male head body (13) is embedded with an eleventh sealing ring (27), and a right-angle clamping groove is formed in the inner wall of the male head body (13).

9. An air conditioner line connection quick coupling according to claim 8, characterized in that: The female head body (13) is provided with a valve core assembly, one end of the female head body (13) is provided with a female head base (28), wherein one end of the valve core assembly is embedded on the female head base (28), and the female head body (13) is in threaded connection with the female head base (28); The valve core assembly is composed of a female head valve rod (14), a sixth sealing ring (15), a sealing base (16), a female head first valve sleeve (17), a female head second valve sleeve (18), a first spring (19), a seventh sealing ring (20), an eighth sealing ring (21), a female head valve core base (23), a ninth sealing ring (24), a tenth sealing ring (25), and a female head clamping seat (26); The female head first valve sleeve (17) is provided with the female head second valve sleeve (18) in the middle of the inner cavity, one end of the female head second valve sleeve (18) is inserted with the female head valve rod (14), the female head valve rod (14) is provided with the sixth sealing ring (15) and the sealing base (16) on the connection with the female head second valve sleeve (18), the female head second valve sleeve (18) is provided with the first spring (19) outside, one end of the female head second valve sleeve (18) is inserted with the female head valve core base (23), the inner wall of the female head valve core base (23) and located on one side of the female head second valve sleeve (18) is provided with the fourth sealing groove, the fourth sealing groove is provided with the seventh sealing ring (20) and the eighth sealing ring (21) in the inner cavity, the female head valve core base (23) is provided with the second spring (22) outside, one end of the second spring (22) is connected with the female head first valve sleeve (17), one end of the female head valve core base (23) is provided with the ninth sealing ring (24) and the tenth sealing ring (25) outside, and the female head valve core base (23) is inserted with the female head clamping seat (26) in the inner cavity.

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