Anti-falling filling connector for gas filling
The design of the anti-detachment ring structure solves the problem of loosening or falling off of the gas filling connector under high pressure and vibration conditions, achieving a stable connection of the connector and improving the safety and reliability of the filling system.
Patent Information
- Application Number
- CN202520555480.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-27
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-03-27
AI Technical Summary
Existing gas filling connectors are prone to loosening or falling off under high pressure and vibration conditions, leading to gas leakage and safety hazards. Furthermore, traditional connection methods cannot effectively prevent loosening or falling off if not operated properly.
The anti-detachment ring structure is adopted. Through the threaded connection between the rotary joint and the gas cylinder joint and the anti-detachment ring, it ensures that the joint is tightly connected to the gas cylinder filling port and prevents loosening or falling off.
It improves the safety and reliability of the filling system, prevents the joints from loosening or falling off due to vibration, temperature changes or improper operation, and ensures the sealing and stability of the filling process.
Smart Images
Figure CN223939209U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of gas filling technology, and more specifically to an anti-detachment filling connector for gas filling. Background Technology
[0002] Existing gas filling systems are widely used in industrial, medical, and scientific research fields. Among them, the filling connector, as a key component connecting the filling pipeline and the gas cylinder filling port, bears the heavy responsibility of withstanding high pressure, achieving sealing, and ensuring the stability of gas filling. Traditional filling connectors generally adopt threaded connections or quick-connect structures. Although their design can meet the basic gas transportation and sealing requirements, there are still certain limitations and hidden dangers in practical applications.
[0003] During high-pressure filling and rapid gas flow, filling joints are susceptible to gas impact, vibration, and temperature changes, which can lead to loosening or detachment of the joint connections. Especially during the filling process, uneven installation force by operators, thermal expansion and contraction of materials, and repeated disassembly and assembly can cause the joints to gradually lose their original fixed state, resulting in gas leakage, reduced filling efficiency, or even safety accidents.
[0004] Therefore, there is an urgent need for a gas filling connector that prevents loosening or detachment during use, while ensuring a sealed, stable and efficient filling process. This connector can effectively prevent loosening or detachment due to vibration, temperature changes or improper operation, thereby improving the overall safety and reliability of the filling system. Utility Model Content
[0005] In view of the shortcomings of the existing technology, the purpose of this application is to provide a gas filling anti-detachment filling connector to solve the problems mentioned in the background art.
[0006] According to one aspect of this application, a gas filling anti-detachment filling connector includes a gas source connector, a gas cylinder connector, and an anti-detachment ring. The gas source connector is rotatably connected to the gas cylinder connector, and the gas source connector and the gas cylinder connector are connected at the rotatable connection point. An adjustable length anti-detachment ring is rotatably installed on the outer side of the gas source connector. The gas source connector is connected to a filling device via a pipeline. The gas cylinder connector is connected to the gas cylinder filling port. The anti-detachment ring is sleeved on the outer periphery of the gas cylinder filling port and adjusted so that the anti-detachment ring contacts the outer wall of the gas cylinder filling port.
[0007] Preferably, the gas source connector includes a connecting pipe and a rotary connector. The rotary connector has a transition cavity inside. The top of the rotary connector is fixedly connected to the connecting pipe. The lower end of the connecting pipe is connected to the transition cavity. The upper end of the connecting pipe is connected to an external inflation device through a pipeline. The gas cylinder connector passes through the left and right sides of the rotary connector and the two are sealed and rotatably connected. The gas cylinder connector is connected to the transition cavity. The anti-detachment hanging ring is rotatably connected to the front and rear sides of the rotary connector.
[0008] Preferably, the gas cylinder connector is a cylindrical structure, and an air passage is provided inside the gas cylinder connector along its axial direction. One end of the air passage is open and the other end is closed. An internal thread adapted to the external thread of the gas cylinder filling port is provided on the inner side wall of the open end of the air passage. A plurality of vent holes are equally spaced along the circumference on the side wall of the gas cylinder connector located in the transition cavity, and the air passage is connected to the transition cavity through the vent holes. Sealed bearings are installed between the outer side wall of the gas cylinder connector and the inner side wall of the transition cavity located on both sides of the vent holes. A connecting shaft is fixedly provided on the end of the gas cylinder connector away from the opening end of the air passage, and a knob is fixedly provided on the connecting shaft.
[0009] Preferably, a stepped groove is provided on the inner side of the airway opening end, and an annular sealing ring is embedded in the stepped groove. When the gas cylinder connector is threadedly connected to the gas cylinder filling port, the end of the gas cylinder filling port is in close contact with the annular sealing ring.
[0010] Preferably, the anti-detachment hanging ring has a U-shaped structure, and waist-shaped adjustment holes are provided on both side plates of the anti-detachment hanging ring. The two side plates of the anti-detachment hanging ring are located on the front and rear sides of the rotary joint, and both sides are threadedly connected to the front and rear sides of the rotary joint by fastening screws passing through the waist-shaped adjustment holes. The anti-detachment hanging ring can rotate around the fastening screws.
[0011] The advantages of this application compared to the prior art are as follows: The anti-detachment filling connector for gas filling, through the setting of the anti-detachment ring, ensures that when connecting the filling connector to the gas cylinder filling port, the gas passage opening end of the gas cylinder connector is aligned with the gas cylinder filling port, and the knob is rotated. This causes the internal thread inside the gas passage opening end to be threadedly fixedly connected to the external thread of the gas cylinder filling port, ensuring a tight contact between the gas cylinder filling port end and the annular sealing ring set inside the gas passage opening end, thus guaranteeing a tight seal during the filling process. Then, the anti-detachment ring is rotated around the top of the gas cylinder and placed at the gas cylinder filling port position. Place the anti-detachment ring on the outer periphery of the filling connector, and then push the anti-detachment ring to slide the waist-shaped adjustment holes on both sides of the gas source connector along the fastening screws on both sides of the rotary connector, so that the anti-detachment ring contacts the outer wall at the gas cylinder filling port. Then tighten the fastening screws to fix the anti-detachment ring to the rotary connector, so that the filling connector is tightly and stably connected to the gas cylinder filling port under the restriction of the anti-detachment ring. This can effectively prevent the filling connector from loosening or falling off during use due to vibration, temperature changes or improper operation, thereby improving the overall safety and reliability of the filling system. Attached Figure Description
[0012] Figure 1 This is a perspective view of a gas filling anti-detachment filling connector in use according to an embodiment of this application.
[0013] Figure 2 This is a cross-sectional view of a gas filling anti-detachment filling connector according to an embodiment of this application.
[0014] Figure 3 This is a perspective view of a gas filling anti-detachment filling connector according to an embodiment of this application.
[0015] Figure 4 This is a perspective exploded view of a gas filling anti-detachment filling connector according to an embodiment of this application.
[0016] Reference numerals: 1. Gas source connector; 101. Connecting pipe; 102. Rotary joint; 103. Transition chamber; 2. Gas cylinder connector; 3. Anti-detachment hanging ring; 4. Gas cylinder filling port; 5. Sealed bearing; 6. Gas passage; 7. Vent hole; 8. Connecting shaft; 9. Knob; 10. Stepped groove; 11. Annular sealing ring; 12. Waist-shaped adjustment hole; 13. Fastening screw. Detailed Implementation
[0017] To make the content of this application easier to understand, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. It should be noted that the terms "front," "rear," "left," "right," "upper," and "lower" used in the following description refer to the accompanying drawings. Figure 1In the context of direction, the terms "inside" and "outside" refer to directions toward or away from the geometric center of a specific component, respectively.
[0018] like Figures 1-4 As shown, a gas filling anti-detachment filling connector includes a gas source connector 1, a gas cylinder connector 2, and an anti-detachment hanging ring 3. The gas source connector 1 and the gas cylinder connector 2 are rotatably connected. Specifically, the gas source connector 1 includes a connecting pipe 101 and a rotary connector 102. The rotary connector 102 has a transition cavity 103 inside. The top of the rotary connector 102 is fixedly connected to the connecting pipe 101, the lower end of the connecting pipe 101 is connected to the transition cavity 103, and the upper end of the connecting pipe 101 is connected to a filling device through a pipeline. The gas cylinder connector 2 has a cylindrical structure and passes through the left and right sides of the rotary connector 102. Inside the gas cylinder connector 2, an air passage 6 is arranged along its axial direction. One end of the air passage 6 is open and the other end is closed. The open end of the air passage 6 is connected to the gas cylinder filling port 4. The inner wall of the open end of the air passage 6 is provided with an internal thread that matches the external thread of the gas cylinder filling port 4. Several vent holes 7 are evenly spaced along the circumference on the side wall of the gas cylinder connector 2 located in the transition cavity 103. The air passage 6 is connected to the transition cavity 103 through the vent holes 7. Sealed bearings 5 are installed between the outer wall of the gas cylinder connector 2 located on both sides of the vent holes 7 and the inner wall of the transition cavity 103 to ensure sealed rotation between them. The gas cylinder connector 2 is connected to a rotating joint 102. A connecting shaft 8 is fixedly mounted on the end of the gas cylinder connector 2 furthest from the opening of the gas passage 6. A knob 9 is fixedly mounted on the connecting shaft 8, allowing the gas cylinder connector 2 to rotate and connect threadedly to the gas cylinder filling port 4 when the knob 9 is rotated. Additionally, a stepped groove 10 is provided on the inner side of the opening of the gas passage 6, and an annular sealing ring 11 is embedded in the stepped groove 10. When the gas cylinder connector 2 is threadedly connected to the gas cylinder filling port 4, the end of the gas cylinder filling port 4 is in close contact with the annular sealing ring 11 to ensure good sealing during the filling process. Furthermore, the anti-detachment hanging ring 3 rotates on both sides of the rotating connector 102. Specifically, the anti-detachment hanging ring 3 has a U-shaped structure. Both sides of the anti-detachment hanging ring 3 have waist-shaped adjustment holes 12. The two sides of the anti-detachment hanging ring 3 are located on the front and rear sides of the rotary joint 102, and both sides are threadedly connected to the front and rear sides of the rotary joint 102 through the waist-shaped adjustment holes 12 by fastening screws 13. The anti-detachment hanging ring 3 can rotate around the fastening screws 13, and the anti-detachment hanging ring 3 can slide along the fastening screws 13 through the waist-shaped adjustment holes 12 to adjust the distance between the anti-detachment hanging ring 3 and the gas cylinder, so as to ensure that it can be hung on the outer periphery of the gas cylinder filling port 4.
[0019] Workflow: When connecting the filling connector to the gas cylinder filling port 4, align the opening end of the gas passage 6 of the gas cylinder connector 2 with the gas cylinder filling port 4, and then rotate the knob 9. This causes the internal thread inside the opening end of the gas passage 6 to be threadedly fixed to the external thread of the gas cylinder filling port 4, ensuring a tight seal between the end of the gas cylinder filling port 4 and the annular sealing ring 11 provided inside the opening end of the gas passage 6, thus guaranteeing a tight seal during the filling process. Then, rotate the anti-detachment ring 3 around the top of the gas cylinder and place it on the outer periphery of the gas cylinder filling port 4. Finally, push the anti-detachment ring 3 to secure the waist of its two side plates. The adjusting hole 12 slides along the fastening screws 13 on both sides of the rotary joint 102 of the gas source connector 1, so that the anti-detachment ring 3 contacts the outer wall at the position of the gas cylinder filling port 4. Then, tighten the fastening screws 13 to fix the anti-detachment ring 3 to the rotary joint 102. This makes the filling connector tightly and stably connected to the gas cylinder filling port 4 under the restriction of the anti-detachment ring 3, which can effectively prevent the filling connector from loosening or falling off during use due to vibration, temperature changes or improper operation, thereby improving the overall safety and reliability of the filling system.
[0020] The above embodiments are only used to illustrate the technical solutions of the embodiments of this application, and are not intended to limit them. Although the embodiments of this application have been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features, without departing from the spirit and scope defined by the claims of this application.
Claims
1. A gas filling connector with anti-detachment function, comprising a gas source connector (1), a gas cylinder connector (2), and an anti-detachment ring (3), characterized in that, The gas source connector (1) is rotatably connected to the gas cylinder connector (2). The gas source connector (1) and the gas cylinder connector (2) are connected at the rotatable connection point. An adjustable anti-detachment ring (3) is rotatably installed on the outside of the gas source connector (1). The gas source connector (1) is connected to an external inflation device through a pipeline. The gas cylinder connector (2) is connected to the gas cylinder inflation port (4). The anti-detachment ring (3) is fitted onto the outer periphery of the gas cylinder inflation port (4) and adjusted so that the anti-detachment ring (3) contacts the outer wall of the gas cylinder inflation port (4).
2. The anti-detachment filling connector for gas filling according to claim 1, characterized in that, The gas source connector (1) includes a connecting pipe (101) and a rotary connector (102). The rotary connector (102) has a transition cavity (103) inside. The top of the rotary connector (102) is fixedly connected to the connecting pipe (101). The lower end of the connecting pipe (101) is connected to the transition cavity (103). The upper end of the connecting pipe (101) is connected to an external inflation device through a pipeline. The gas cylinder connector (2) passes through the left and right sides of the rotary connector (102) and the two are sealed and rotatably connected. The gas cylinder connector (2) is connected to the transition cavity (103). The anti-detachment hanging ring (3) is rotatably connected to the front and rear sides of the rotary connector (102).
3. The anti-detachment filling connector for gas filling according to claim 2, characterized in that, The gas cylinder connector (2) is a cylindrical structure. An air passage (6) is provided inside the gas cylinder connector (2) along its axial direction. One end of the air passage (6) is open and the other end is closed. An internal thread that matches the external thread of the gas cylinder filling port (4) is provided on the inner side wall of the open end of the air passage (6). Several ventilation holes (7) are provided on the side wall of the gas cylinder connector (2) located in the transition cavity (103) along its circumference at equal intervals. The air passage (6) is connected to the transition cavity (103) through the ventilation holes (7). Sealed bearings (5) are installed between the outer side wall of the gas cylinder connector (2) located on both sides of the ventilation holes (7) and the inner side wall of the transition cavity (103). A connecting shaft (8) is fixedly provided on the end of the gas cylinder connector (2) away from the open end of the air passage (6). A knob (9) is fixedly provided on the connecting shaft (8).
4. The anti-detachment filling connector for gas filling according to claim 3, characterized in that, A stepped groove (10) is provided on the inner side of the opening end of the air passage (6), and an annular sealing ring (11) is embedded in the stepped groove (10). When the gas cylinder connector (2) is threadedly connected to the gas cylinder filling port (4), the end of the gas cylinder filling port (4) is in close contact with the annular sealing ring (11).
5. A gas filling anti-detachment filling connector according to claim 2, characterized in that, The anti-detachment ring (3) has a U-shaped structure. Both sides of the anti-detachment ring (3) are provided with waist-shaped adjustment holes (12). The two sides of the anti-detachment ring (3) are located on the front and rear sides of the rotary joint (102), and both sides are threadedly connected to the front and rear sides of the rotary joint (102) through the waist-shaped adjustment holes (12) by fastening screws (13). The anti-detachment ring (3) can rotate around the fastening screws (13).