Cold equipment pipeline quick connector

Abstract

The utility model discloses a cold equipment pipeline quick connector relates to pipeline connection technical field, including male joint and fixed ring, the outer surface of male joint is fixed with the fixed ring, the outer side of fixed ring is provided with the annular slot, the one side of male joint is provided with the conduit, one end of conduit is fixed with the female joint. When a male joint is close to a female joint, a telescopic rod fixed on the inner wall of a fixing rod and a spring sleeved on the outer surface of the fixing rod, a top end fixing frame is driven to move, one end of a supporting rod rotationally connected with the fixing frame is rotated, a clamping hook at the top end of the supporting rod is aligned with an annular clamping groove, and then the spring is reset to pull the clamping hook to be clamped into the clamping groove; therefore, quick, stable and well-sealed connection of the male connector and the female connector is achieved, the installation efficiency is greatly improved, the connection stability is guaranteed, connector loosening or medium leakage caused by factors such as vibration in the operation process is prevented, and reliable operation of a cold equipment pipeline system is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of pipe connection technology, specifically a quick connector for cold equipment pipes. Background Technology

[0002] Refrigeration equipment refers to equipment mainly used for refrigerating food for crew members, refrigerating various types of cargo, and conditioning cabin air during hot weather. It mainly consists of compressors, expansion valves, evaporators, condensers, accessories, and pipelines. According to the working principle, it can be divided into compression refrigeration equipment, absorption refrigeration equipment, steam jet refrigeration equipment, heat pump refrigeration equipment, and electric heating refrigeration devices. In the operation of refrigeration equipment, the connection of pipelines is a key link to ensure the normal operation of the system.

[0003] However, existing quick connectors for refrigeration equipment piping still have some problems in use:

[0004] Existing refrigeration equipment piping connections are mostly made by welding or threaded connections. Welding requires specialized welding equipment and technicians, is complex and time-consuming, is difficult to maintain, and may affect the service life of the piping. Threaded connections are relatively simple, but are less efficient when faced with frequent disassembly and installation, and their sealing performance is prone to decline after long-term use, leading to leakage of the refrigerant. This not only affects the performance of the refrigeration equipment, but may also cause energy waste and environmental pollution.

[0005] Therefore, we propose a quick connector for cold equipment piping to address the problems mentioned above. Utility Model Content

[0006] The purpose of this utility model is to provide a quick connector for refrigeration equipment pipelines, in order to solve the problems mentioned in the background art, which mainly involve welding and threaded connections for refrigeration equipment pipelines. Welding requires professional welding equipment and technicians, is complex and time-consuming, has high maintenance difficulty, and may affect the service life of the pipeline. Although threaded connections are relatively simple, they are inefficient when faced with frequent disassembly and installation needs, and the sealing performance is prone to decline after long-term use, leading to leakage of the cold medium. This not only affects the performance of the refrigeration equipment, but may also cause energy waste and environmental pollution.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a quick connector for refrigerated equipment pipes, comprising a male connector and a retaining ring, wherein the retaining ring is fixed to the outer surface of the male connector.

[0008] The outer side of the fixing ring is provided with an annular groove. A guide tube is provided on one side of the male connector. A female connector is fixed at one end of the guide tube. Four sets of fixing rods are uniformly distributed on the outer surface of the female connector. A telescopic rod is fixed on the inner wall of the fixing rod. A spring is sleeved on the outer surface of the telescopic rod. A fixing frame is fixed at the top of the telescopic rod and the spring. A support rod is provided on one side of the fixing rod. One end of the support rod is rotatably connected to the inner side of the fixing frame. A hook that engages with the groove is fixed at the top of the support rod.

[0009] By adopting the above technical solution, one end of the male connector is embedded in the middle of the female connector. The telescopic rod and spring inside the outer fixing rod of the female connector can drive the support rod and the hook at its top to align and engage with the annular groove, thereby achieving the connection between the two. This easily achieves the rapid connection of the refrigeration equipment pipeline, greatly improving installation efficiency. At the same time, the spring and telescopic rod provide buffering to ensure the joint is stable, effectively preventing loosening caused by vibration during operation, reducing the risk of cold medium leakage, and laying a solid foundation for the stable operation of refrigeration equipment.

[0010] Preferably, the male connector has a tapered guide design, and the diameter of the male connector extends from small to large towards the female connector.

[0011] The above technical solution employs a tapered guide design for the male connector, with its aperture gradually increasing from the end furthest from the female connector toward the female connector. This guide design facilitates more precise insertion of the male connector into the female connector, significantly improving the docking efficiency between the male and female connectors. It enables quick and accurate connection while preventing misalignment or jamming during the docking process, ensuring a smooth connection.

[0012] Preferably, the outer surface of the male connector is provided with an external threaded coil, the inner ring of the female connector is provided with an internal threaded coil, and the male connector and the female connector are fastened together by the threaded coils.

[0013] Using the above technical solution, the external threaded coil on the outer surface of the male connector matches the internal threaded coil on the inner ring of the female connector. When connecting the male and female connectors, the threaded coils of both are engaged by rotation, thereby achieving a tight connection. This enhances the stability and sealing of the connection between the male and female connectors, preventing the connectors from loosening or the medium from leaking due to factors such as vibration and pressure changes during the operation of the refrigeration equipment.

[0014] Preferably, the inner side of the male connector is fixed with a sleeve, and the sleeve is composed of multiple sets of elastic sheets made of rubber material, and the outer surface of the sleeve is provided with an embedded groove in an annular shape.

[0015] Using the above technical solution, the jacket inside the male connector is composed of multiple sets of rubber elastic sheets, and an embedded groove is opened on its outer surface. When the pipe is connected, the rubber elastic sheets can deform, and the embedded groove can cooperate with other components to enhance the connection effect. The jacket uses the elasticity of the rubber elastic sheets to fit tightly into the pipe and improve the sealing performance. At the same time, the embedded groove can be used to accommodate sealing components, further ensuring the stability and sealing of the cold equipment pipe connection.

[0016] Preferably, the upper end face of the sleeve is nested with an upper clamping plate adapted to the embedding groove, and the lower end face of the sleeve is nested with a lower clamping plate. Both ends of the upper and lower clamping plates are threadedly connected with fastening screws.

[0017] Using the above technical solution, the upper and lower clamping plates are nested on the upper and lower end faces of the jacket, respectively, and are adapted to the embedded groove on the outer surface of the jacket. They are connected by fastening screws that pass through both ends of the upper and lower clamping plates. When the screws are rotated, the tension of the screws causes the upper and lower clamping plates to move towards each other, thereby pressing the jacket. This can effectively fix the jacket, enhance the clamping force of the jacket on the pipeline, and further improve the stability and sealing of the male connector and the pipeline connection, ensuring that there will be no loosening or leakage at the connection during the operation of the cold equipment.

[0018] Preferably, a first sealing ring is embedded in the inner wall of one end of the male connector, a second sealing ring is embedded in the inner wall of the conduit, a first pipe passes through the middle of the male connector, a second pipe passes through the middle of the conduit, and the connection between the first pipe and the second pipe is fastened by connecting flange bolts.

[0019] Using the above technical solution, the male connector and the inner wall of the conduit are respectively embedded with a first sealing ring and a second sealing ring, and the first pipe and the second pipe pass through them. The connection between the two is fastened by bolts through a connecting flange. The sealing and connection are achieved by the elastic deformation of the sealing ring and the fastening effect of the connecting flange. The first sealing ring and the second sealing ring prevent the leakage of cold medium in the pipe, and the connecting flange ensures that the first and second pipes are firmly connected, thus jointly ensuring the stable operation and sealing of the cold equipment piping system.

[0020] Compared with the prior art, the beneficial effects of this utility model are:

[0021] 1. When the male connector approaches the female connector, the telescopic rod fixed to the inner wall of the fixing rod and the spring sleeved on the outer surface drive the top fixing frame to move, causing one end of the support rod rotatably connected to the fixing frame to rotate, thereby aligning the hook at the top of the support rod with the annular groove. Then the spring returns to its original position, pulling the hook into the groove, thus achieving a quick, stable and well-sealed connection between the male and female connectors. This greatly improves installation efficiency, ensures connection stability, prevents loosening of the joint or leakage of the medium due to vibration and other factors during operation, and ensures the reliable operation of the cold equipment piping system.

[0022] 2. The upper end face of the jacket is nested with an upper clamping plate that fits the embedded groove, and the lower end face is nested with a lower clamping plate. The upper and lower clamping plates are connected at both ends by a fastening screw. When the fastening screw is rotated, the tension of the screw causes the upper and lower clamping plates to move towards each other, thereby pressing the jacket. Since the jacket is made of rubber elastic sheet, it can deform when pressed, tightly fitting the pipeline, which can enhance the stability and sealing of the male connector and pipeline connection, so as to provide a good sealing effect and prevent media leakage. The fastening structure composed of the upper and lower clamping plates and the fastening screw further ensures that the jacket firmly clamps the pipeline, ensuring that the connection will not loosen during the operation of the cold equipment, and maintaining the normal operation of the pipeline system. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the external structure of this utility model from the front view;

[0024] Figure 2 This is a schematic cross-sectional view of the main body of this utility model;

[0025] Figure 3 This is a schematic diagram of the threaded connection structure of the male and female connectors of this utility model;

[0026] Figure 4 This is a schematic diagram of the elastic connection structure between the support rod and the fixed rod of this utility model;

[0027] Figure 5 This is a schematic diagram of the jacket and clamping plate connection structure of this utility model.

[0028] In the diagram: 1. Male connector; 2. First sealing ring; 3. Retaining ring; 4. Slot; 5. External threaded coil; 6. Conduit; 7. Second sealing ring; 8. Female connector; 9. Internal threaded coil; 10. Fixing rod; 11. Telescopic rod; 12. Spring; 13. Fixing bracket; 14. Support rod; 15. Hook; 16. Jacket; 17. Embedded groove; 18. Upper clamping plate; 19. Lower clamping plate; 20. Fastening screw; 21. First pipe; 22. Second pipe; 23. Connecting flange. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0030] Please see Figures 1-5This utility model provides a technical solution: a quick connector for refrigerated equipment pipes, including a male connector 1 and a retaining ring 3. The retaining ring 3 is fixed to the outer surface of the male connector 1. An annular groove 4 is provided on the outer side of the retaining ring 3. A conduit 6 is provided on one side of the male connector 1. A female connector 8 is fixed to one end of the conduit 6. Four sets of fixing rods 10 are uniformly distributed on the outer surface of the female connector 8. A telescopic rod 11 is fixed to the inner wall of the fixing rod 10. A spring 12 is sleeved on the outer surface of the telescopic rod 11. A fixing frame 13 is fixed to the top of the telescopic rod 11 and the spring 12. A support rod 14 is provided on one side of the fixing rod 10, and one end of the support rod 14 is rotatably connected to the inner side of the fixing frame 13. A hook 15 is fixed to the top of the support rod 14 and engages with the groove 4. The male connector 1 has a tapered guide design, and the diameter of the male connector 1 extends from small to large towards the female connector 8. The male connector 1 has an external threaded coil 5 on its outer surface, and the female connector 8 has an internal threaded coil 9 on its inner ring. The male connector 1 and the female connector 8 are fastened together by the threaded coils.

[0031] The male connector 1 is externally fixed with a fixing ring 3 having an annular groove 4, and the male connector 1 has a tapered guide design with the hole diameter extending from small to large towards the female connector 8, which facilitates quick and accurate positioning of the mating position. The external thread coil 5 of the male connector 1 and the internal thread coil 9 of the inner ring of the female connector 8 can be connected by rotation to achieve threaded fastening. During connection, the four sets of fixing rods 10 uniformly distributed on the outer surface of the female connector 8 play a role. When the male connector 1 approaches the female connector 8, the telescopic rod 11 fixed on the inner wall of the fixing rod 10 and the spring 12 sleeved on the outer surface drive the top fixing frame 13 to move, causing one end of the support rod 14 rotatably connected to the fixing frame 13 to rotate, thereby aligning the hook 15 at the top of the support rod 14 with the annular groove 4. Then the spring 12 returns to its original position, pulling the hook 15 into the groove 4, thus achieving a quick, stable and well-sealed connection between the male connector 1 and the female connector 8, greatly improving installation efficiency, ensuring connection stability, preventing loosening of the joint or leakage of the medium due to vibration and other factors during operation, and ensuring the reliable operation of the cold equipment pipeline system.

[0032] The inner side of the male connector 1 is fixed with a sleeve 16, which is composed of multiple sets of elastic rubber sheets. The outer surface of the sleeve 16 has an annular groove 17. The upper end face of the sleeve 16 is nested with an upper clamping plate 18 that matches the groove 17, and the lower end face of the sleeve 16 is nested with a lower clamping plate 19. The two ends of the upper clamping plate 18 and the lower clamping plate 19 are threadedly connected with fastening screws 20.

[0033] Inside the male connector 1 of the quick connector for refrigerated equipment pipes, a sleeve 16 composed of multiple sets of elastic rubber sheets is fixed. Its outer surface has an annular groove 17. An upper clamping plate 18, which fits the groove 17, is nested on the upper end face of the sleeve 16, and a lower clamping plate 19 is nested on the lower end face. The upper and lower clamping plates 18 and 19 are threadedly connected by a fastening screw 20. When the fastening screw 20 is rotated, the tension of the screw causes the upper and lower clamping plates 18 and 19 to move towards each other, thereby pressing the sleeve 16. The sleeve 16 is made of rubber elastic sheet, which can deform when compressed and fit tightly against the pipe, which can enhance the stability and sealing of the connection between the male connector 1 and the pipe. On the one hand, the rubber sleeve 16 can provide a good sealing effect to prevent media leakage; on the other hand, the fastening structure composed of the upper clamping plate 18, the lower clamping plate 19 and the fastening screw 20 further ensures that the sleeve 16 firmly clamps the pipe, ensuring that the connection will not loosen during the operation of the cold equipment and maintaining the normal operation of the pipeline system.

[0034] A first sealing ring 2 is embedded in the inner wall of one end of the male connector 1, a second sealing ring 7 is embedded in the inner wall of the conduit 6, a first pipe 21 passes through the middle of the male connector 1, a second pipe 22 passes through the middle of the conduit 6, and the connection between the first pipe 21 and the second pipe 22 is fastened by bolts through the connecting flange 23.

[0035] In this quick connector for refrigeration equipment piping, a first sealing ring 2 is embedded in the inner wall of one end of the male connector 1, and a second sealing ring 7 is embedded in the inner wall of the conduit 6. The male connector 1 and the conduit 6 respectively pass through the first pipe 21 and the second pipe 22, and the connection between the first pipe 21 and the second pipe 22 is fastened by bolts through the connecting flange 23. When the first pipe 21 and the second pipe 22 are connected, the bolts on the connecting flange 23 are tightened to make the two pipes tightly connected. At the same time, the first sealing ring 2 and the second sealing ring 7 undergo elastic deformation under compression, filling the gaps between the pipes and the inner walls of the male connector 1 and the conduit 6. The bolts of the connecting flange 23 ensure the firmness of the connection between the first pipe 21 and the second pipe 22, preventing the pipes from disengaging due to vibration or other reasons during the operation of the refrigeration equipment. The first sealing ring 2 and the second sealing ring 7 effectively prevent the leakage of the cold medium in the pipes, greatly ensuring the stable operation of the refrigeration equipment piping system, maintaining the normal working performance of the refrigeration equipment, and reducing the safety hazards and energy consumption caused by medium leakage.

[0036] Working Principle: For this type of quick connector for refrigerated equipment pipes, when the quick connector is in operation, the male connector 1, with its tapered guide design, extends towards the female connector 8 with its diameter increasing from small to large, facilitating quick positioning and docking. When it approaches the female connector 8, the telescopic rod 11 compresses the spring 12 within the four uniformly distributed fixed rods 10 on the outer surface of the female connector 8, driving the fixed frame 13 to move and causing the support rod 14 to rotate. The hook 15 at the top of the support rod 14 aligns with the annular groove 4 on the outer side of the fixed ring 3. After the spring 12 returns to its original position, the hook 15 engages with the groove 4, thus tightening the threads of the male connector 1's external threaded coil 5 and the female connector 8's internal threaded coil 9. The male connector 1 and female connector 8 are securely connected. The inner side of the male connector 1 is composed of a jacket 16 made of multiple sets of rubber elastic sheets. When the upper clamping plate 18 and the lower clamping plate 19 are pressed together by rotating the fastening screw 20, they deform and fit tightly against the first pipe 21. At the same time, the first sealing ring 2 embedded in the inner wall of one end of the male connector 1 and the second sealing ring 7 embedded in the inner wall of the conduit 6 are squeezed and deformed when the first pipe 21 and the second pipe 22 are fastened by the connecting flange 23 bolts. This fills the gap between the pipe and the inner wall of the connector, ensuring the high efficiency, stability and sealing of the cold equipment pipeline connection in all aspects, and ensuring the stable operation of the cold equipment pipeline system.

[0037] This completes a series of tasks. The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0038] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A quick connector for refrigerated equipment pipes, comprising a male connector (1) and a retaining ring (3), wherein the retaining ring (3) is fixed to the outer surface of the male connector (1), characterized in that: The outer side of the fixing ring (3) is provided with an annular groove (4). A guide tube (6) is provided on one side of the male connector (1). A female connector (8) is fixed at one end of the guide tube (6). Four sets of fixing rods (10) are uniformly distributed on the outer surface of the female connector (8). A telescopic rod (11) is fixed on the inner wall of the fixing rod (10). A spring (12) is sleeved on the outer surface of the telescopic rod (11). A fixing frame (13) is fixed at the top of the telescopic rod (11) and the spring (12). A support rod (14) is provided on one side of the fixing rod (10). One end of the support rod (14) is rotatably connected to the inner side of the fixing frame (13). A hook (15) is fixed at the top of the support rod (14) and engages with the groove (4).

2. The quick connector for refrigerated equipment pipes according to claim 1, characterized in that: The male connector (1) has a tapered guide design, and the diameter of the male connector (1) extends from small to large towards the female connector (8).

3. A quick connector for refrigerated equipment pipes according to claim 1, characterized in that: The male connector (1) has an external threaded coil (5) on its outer surface, and the female connector (8) has an internal threaded coil (9) on its inner ring. The male connector (1) and the female connector (8) are fastened together by the threaded coil.

4. A quick connector for refrigerated equipment pipes according to claim 1, characterized in that: The inner side of the male connector (1) is fixed with a sleeve (16), and the sleeve (16) is composed of multiple sets of elastic sheets made of rubber. The outer surface of the sleeve (16) is provided with an embedded groove (17) in an annular shape.

5. A quick connector for refrigerated equipment pipes according to claim 4, characterized in that: The upper end face of the sleeve (16) is nested with an upper clamping plate (18) that is adapted to the embedded groove (17), and the lower end face of the sleeve (16) is nested with a lower clamping plate (19). The two ends of the upper clamping plate (18) and the lower clamping plate (19) are threadedly connected with fastening screws (20).

6. A quick connector for refrigerated equipment pipes according to claim 1, characterized in that: A first sealing ring (2) is embedded in the inner wall of one end of the male connector (1), a second sealing ring (7) is embedded in the inner wall of the conduit (6), a first pipe (21) passes through the middle of the male connector (1), a second pipe (22) passes through the middle of the conduit (6), and the connection between the first pipe (21) and the second pipe (22) is fastened by bolts of the connecting flange (23).

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