A vacuum-free installation-free quick connecting device

Abstract

The application discloses a kind of vacuum-free installation-free quick connecting device, including first joint and second joint, first joint is provided with first nut, the both ends of first joint are provided with first threaded joint and second threaded joint respectively, first threaded joint is provided with first vent in first joint, one end of second joint is provided with second nut connected with the first threaded joint, the other end surface of second joint is provided with vent, control valve stem for sealing the vent is arranged in the inner cavity of second joint.The application makes the pipeline connection in air conditioner installation convenient and fast.

Description

Technical Field

[0001] This invention relates to the field of air conditioning installation technology, specifically to a quick-connect device that requires no vacuuming and no installation. Background Technology

[0002] Currently, during air conditioner installation, the indoor and outdoor units need to be connected through connecting pipes and connectors at the ends of the pipes. In actual use, one end of the connecting pipe is usually connected to the indoor unit, the air in the connector is purged and a vacuum is drawn, and then the other end of the connector is connected to the outdoor unit. The air purging and vacuuming operations during installation are quite troublesome and increase the safety risks of high-altitude air conditioner installation. Summary of the Invention

[0003] The purpose of this invention is to provide a quick-connect device that requires no vacuuming and no installation, which can effectively solve the technical problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: A quick-connect device that requires no vacuuming and no installation includes a first connector and a second connector. The first connector is provided with a first nut, and the two ends of the first connector are respectively provided with a first threaded connector and a second threaded connector. The first connector is provided with a first vent hole. One end of the second connector is provided with a second nut that connects to the first threaded connector. The other end face of the second connector is provided with a vent. The inner cavity of the second connector is provided with a control valve rod for sealing the vent.

[0005] Preferably, one end of the control valve stem is provided with a conical boss that seals the vent, a limit mounting block is provided on the control valve stem, one end of the return spring is mounted on the limit mounting block, and the other end abuts against the first connector.

[0006] Preferably, a third gasket is installed on the control valve stem, and a conical structure is provided on the inner cavity sidewall of the second connector. When the conical boss seals the vent, the third gasket and the inner cavity sidewall of the second connector are in a sealing fit.

[0007] Preferably, a gasket mounting groove is provided on one side of the control valve stem located on the limiting mounting block, and the third gasket is installed in the gasket mounting groove.

[0008] Preferably, a fourth gasket is provided on the end face of the second connector, and the conical boss is sealed to the fourth gasket.

[0009] Preferably, a first washer and a second washer are respectively installed on both sides of the first nut on the first connector.

[0010] Preferably, the first nut is disposed in the middle of the first joint.

[0011] Compared with the prior art, the beneficial effects of the present invention are: This invention is applied to air conditioner installation, making the connection between the indoor and outdoor units of the air conditioner convenient and quick. It avoids the need to connect one end of the pipe to the indoor unit of the air conditioner and then vent the air in the connection joint and perform vacuum treatment, which helps to reduce the safety risks of air conditioners during high-altitude installation. Attached Figure Description

[0012] Figure 1 This is a structural diagram of a quick-connect device that requires no vacuuming and installation. Figure 2 This is a schematic diagram of a quick-connect device that requires no vacuuming or installation, without the third connector installed. Figure 3 This is a schematic diagram showing the positional relationship between the control valve stem and the first connector when the second connector is not installed. Figure 4 It is Figure 3 A schematic diagram of the structure after the fourth gasket is removed; Figure 5 This is a schematic diagram of the control valve stem in an embodiment of the present invention; Figure 6 It is Figure 5 A schematic diagram of the structure after the third gasket is removed; Figure 7 This is a schematic diagram of the structure of the second connector in an embodiment of the present invention; Figure 8 This is a first-view view of the third connector in an embodiment of the present invention; Figure 9 This is a second perspective view of the third connector in an embodiment of the present invention; Figure 10 This is a schematic diagram of the adapter structure in an embodiment of the present invention; In the diagram, 1. First nut, 2. First threaded connector, 3. Second threaded connector, 4. First vent hole, 5. Second nut, 6. Vent, 7. Control valve stem, 8. Conical boss, 9. Limiting mounting block, 10. Third gasket, 11. Gasket mounting groove, 12. Fourth gasket, 13. First gasket, 14. Second gasket, 15. Adapter, 16. Second threaded connector, 17. Second vent hole, 18. Third connector, 19. Conical boss II, 20. Fifth gasket, 21. First connector, 22. Second connector. Detailed Implementation

[0013] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0014] Please see Figure 1-10 As shown, a quick-connect device that requires no vacuuming and no installation includes a first connector 21 and a second connector 22. The first connector 21 is provided with a first nut 1, and the two ends of the first connector 21 are respectively provided with a first threaded connector 2 and a second threaded connector 3. The first connector 21 is provided with a first vent hole 4. One end of the second connector 22 is provided with a second nut 5 connected to the first threaded connector 2, and the other end face of the second connector 22 is provided with a vent 6. The inner cavity of the second connector 22 is provided with a control valve stem 7 for sealing the vent 6. The vent 6 is a circular hole. One end of the control valve stem 7 is sealed to the vent 6 to achieve the sealing of the vent 6 by the control valve stem 7. The second threaded connector 3 at one end of the first connector 21 is connected to the pipeline, and the first connector 21 and the second connector 22 are vented and vacuumed to maintain the vacuum state in the first connector 21 and the second connector 22. One end of the control valve stem 7 is provided with a conical boss 8 that seals the vent 6. A limit mounting block 9 is provided on the control valve stem 7. One end of the return spring is mounted on the limit mounting block 9, and the other end abuts against the first connector 21. Under the action of the return spring, the conical boss 8 of the control valve stem 7 seals the vent 6 to prevent outside air from communicating with the first connector 21 and the second connector 22 through the vent 6. A third gasket 10 is installed on the control valve stem 7, and a conical structure is provided on the inner cavity sidewall of the second connector 22. When the conical boss 8 seals the vent 6, the third gasket 10 and the inner cavity sidewall of the second connector are sealed together to increase the reliability of the seal. The control valve stem 7 has a gasket mounting groove 11 on one side of the limiting mounting block 9, and the third gasket 10 is installed in the gasket mounting groove 11. During installation, the third gasket 10 only needs to be placed in the gasket mounting groove 11, with one end face of the third gasket 10 adhering to the limiting mounting block 9 and the other end face adhering to the side wall of the gasket mounting groove 11. The limiting mounting block 9 has a circular structure, and the diameter of the third gasket 10 is equal to the diameter of the limiting mounting block 9. A fourth gasket 12 is provided on the end face of the second connector 22, and the conical boss 8 is sealed with the fourth gasket 12, so that the sealing performance of the vent 6 is stable. A first washer 13 and a second washer 14 are respectively installed on both sides of the first nut 1 on the first connector 21; One end of the pipeline is connected to the second threaded connector 3 on the first connector 21, and the second gasket 14 is used to increase the sealing of the connection; the second nut 5 on the second connector 22 is connected to the first threaded connector 2, and the first gasket 13 is used to increase the sealing of the connection. The first nut 1 is disposed in the middle of the first connector 21; This invention is applied to air conditioner installation, making the connection between the indoor and outdoor units of the air conditioner convenient and quick. It avoids the need to connect one end of the pipe to the indoor unit of the air conditioner and then vent the air in the connection joint and perform vacuum treatment, which helps to reduce the safety risks of air conditioner installation at high altitudes. In practice, pipes 1 and 2 are connected to the indoor and outdoor units of the air conditioner, respectively. The second threaded connector 3 on the first connector 21 is connected to pipe 1, and the first connector 21 and the second connector 22 are vacuumed. One end of pipe 2 is connected to adapter 15. A second threaded connector 16 is provided on one side of adapter 15. A second vent hole 17 is provided in adapter 15. One end of the third connector 18 is threadedly connected to the second threaded connector 16 on adapter 15. When the other end is installed with the second connector 22, the second conical boss 19 on the third connector 18 pushes the conical boss 8 in the vent 6 until the second conical boss 19 opens the vent 6, and the vent 6 and the second vent hole 17 form a passage. A fifth gasket 20 is installed on the second threaded connector 16, and the third connector 18 is sealed by the fifth gasket 20 when it is installed on adapter 15.

[0015] The above description is merely an example and illustration of the structure of the present invention. Those skilled in the art can make various modifications or additions to the specific embodiments described, or use similar methods to replace them, as long as they do not deviate from the structure of the present invention or exceed the scope defined in the claims, all of which should fall within the protection scope of the present invention.

Claims

1. A quick-connect device that requires no vacuuming and no installation, characterized in that: It includes a first connector, a second connector and a third connector. The first connector is provided with a first nut. The two ends of the first connector are respectively provided with a first threaded connector and a second threaded connector. The first connector is provided with a first vent hole. One end of the second connector is provided with a second nut connected to the first threaded connector. The other end face of the second connector is provided with a vent. The inner cavity of the second connector is provided with a control valve stem for sealing the vent. One end of the control valve stem is provided with a conical boss that seals the vent. A limit mounting block is provided on the control valve stem. One end of the return spring is mounted on the limit mounting block, and the other end abuts against the first connector. The second conical protrusion on the third connector pushes the conical protrusion in the vent to move until the second conical protrusion opens the vent, and the vent and the second vent form a passage.

2. The quick-connect device without vacuuming or installation according to claim 1, characterized in that: A third gasket is installed on the control valve stem, and a conical structure is provided on the inner cavity sidewall of the second connector. When the conical boss seals the vent, the third gasket and the inner cavity sidewall of the second connector are sealed together.

3. The quick-connect device without vacuuming or installation according to claim 2, characterized in that: A gasket mounting groove is provided on one side of the limit mounting block on the control valve stem, and the third gasket is installed in the gasket mounting groove.

4. The quick-connect device without vacuuming or installation according to claim 1, characterized in that: A fourth gasket is provided on the end face of the second connector, and the conical boss is sealed to the fourth gasket.

5. The quick-connect device without vacuuming or installation according to claim 1, characterized in that: A first washer and a second washer are respectively installed on both sides of the first nut on the first connector.

6. The quick-connect device without vacuuming or installation according to claim 1, characterized in that: The first nut is located in the middle of the first connector.

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