Anti-leakage valve for acetylene filling
By designing a leak-proof valve for acetylene filling, using a conical cavity and a conical sealing head structure, the problem of leakage during acetylene filling is solved and a safe acetylene treatment is achieved.
Patent Information
- Application Number
- CN202422154280.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-03
- Publication Date
- 2025-06-24
- Estimated Expiration
- 2034-09-03
AI Technical Summary
During the acetylene filling process, when the filling valve and the inflation pipe connection between the gas cylinder is separated, there is acetylene residue at the end of the filling valve, resulting in acetylene leakage and a safety hazard.
A leak-proof valve for acetylene filling is designed, adopting a structure of a conical cavity and a conical sealing head. By adjusting the coordination of the screw and the limiting block, the valve sealing and switching control are realized to ensure that all acetylene gas in the conical cavity is discharged.
It effectively avoids the leakage of acetylene, improves the safety of the filling environment, and ensures the safe treatment of acetylene.
Smart Images
Figure CN223019960U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of acetylene filling, in particular to a leakage - proof valve for acetylene filling. Background Technique
[0002] Acetylene, commonly known as wind coal and calcium carbide gas, is the simplest alkyne compound. It is a colorless and extremely flammable gas at room temperature and is mainly used for lighting, welding, rubber synthesis, etc. When filling acetylene, acetylene gas is usually filled into gas cylinders, and valves are usually required to control the gas transportation.
[0003] After the current filling operation is completed, when the connection between the filling valve and the gas filling pipe of the gas cylinder is separated, there is acetylene residue at the end of the filling valve. After separation, acetylene will leak into the air. Since acetylene is extremely flammable and toxic, it poses a safety hazard to the filling environment and workers. For this reason, we propose a leakage - proof valve for acetylene filling. Content of the Utility Model
[0004] Aiming at the deficiency that when the connection between the existing filling valve and the gas filling pipe of the gas cylinder is separated, there is acetylene residue at the end of the filling valve and acetylene will leak into the air after separation, the utility model provides a leakage - proof valve for acetylene filling, which has the advantage of being able to discharge all the acetylene gas in the conical cavity, effectively avoiding leakage, and solving the problems raised in the above - mentioned background technique.
[0005] To achieve the above objectives, the utility model is realized through the following technical solutions:
[0006] A leakage - proof valve for acetylene filling includes a filling valve body connected to one end of a clamping device. One end of the filling valve body is sealed and the other end is in a conical tubular structure. The inside of the conical tubular end of the filling valve body is a conical cavity. A valve rod is coaxially connected inside the filling valve body. One end of the valve rod is coaxially connected with a conical sealing head that cooperates with the conical cavity. The other end of the valve rod penetrates through the filling valve body and is sealingly connected to it through a sealing seat.
[0007] On the outer wall of the end of the filling valve body away from the conical cavity, a U - shaped mounting frame is fixedly connected. On one side of the U - shaped mounting frame, a positioning seat is fixedly connected. The end of the valve rod away from the conical sealing head is provided with a threaded section, and the threaded section penetrates through the positioning seat and is threadedly connected to it. At the bottom of the side of the filling valve body away from the conical cavity, a connector is fixed.
[0008] Optionally, the end of the U - shaped mounting frame is fixedly connected to an annular seat. The annular seat is fastened to the end of the filling valve body through bolts, and a rotating handle is coaxially connected to the end of the valve rod provided with the threaded section.
[0009] Optionally, the clamping device includes a U-shaped bracket. First and second mounting seats are respectively and fixedly connected to two ends of the U-shaped bracket. The filling valve body is fixedly connected to the first mounting seat, and an adjusting screw rod is threadedly connected to the second mounting seat. The adjusting screw rod is coaxially arranged with the filling valve body, and a limiting block is fixedly connected to one end of the adjusting screw rod close to the filling valve body.
[0010] Optionally, a connecting seat is fastened to one end of the adjusting screw rod away from the filling valve body. A rotating rod penetrates through the connecting seat. Limiting end plates are threadedly connected to both ends of the rotating rod. A rubber pad is fixedly connected to one side of the limiting block away from the adjusting screw rod.
[0011] Optionally, a sealing piston is coaxially and fixedly connected to the valve rod located inside the filling valve body. The diameter of the sealing piston is equal to the inner diameter of the filling valve body.
[0012] Optionally, a rubber ring is coaxially and fixedly connected to the outer wall of the sealing piston.
[0013] Compared with the prior art, the utility model realizes the sealed connection between the filling valve body and the gas filling pipe by pushing the limiting block to abut against the side wall of the valve body through the adjusting screw rod. At the same time, by rotating the valve rod, the conical sealing head can be driven to connect and separate from the conical cavity, so as to realize the connection and closing of the gas transmission pipe with the filling valve body and the gas filling pipe. It can not only control the opening and closing of filling, but also discharge all the acetylene gas in the conical cavity, effectively avoiding leakage. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 is a schematic structural diagram of the utility model.
[0015] Figure 2 is a schematic internal structural diagram of the utility model.
[0016] Figure 3 is a schematic diagram of the cooperation between the utility model and a gas cylinder.
[0017] In the figure: 1. U-shaped bracket; 2. First mounting seat; 3. Second mounting seat; 4. Adjusting screw rod; 5. Rotating rod; 6. Connecting seat; 7. Filling valve body; 8. Threaded section; 9. Rotating handle; 10. Gas cylinder; 11. Gas filling pipe; 12. Adjusting valve; 13. Rubber pad; 14. Limiting block; 15. Limiting end plate; 16. Positioning seat; 17. U-shaped mounting frame; 18. Annular seat; 19. Sealing seat; 20. Connector; 21. Valve rod; 22. Conical sealing head; 23. Conical cavity; 24. Rubber ring; 25. Sealing piston; 26. Gas transmission pipe. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts belong to the scope of protection of the present utility model.
[0019] Please refer to Figures 1 to 3 , the present utility model provides a technical solution: an anti-leakage valve for acetylene filling, including a filling valve body 7 connected to one end of a clamping device. One end of the filling valve body 7 is sealed and the other end is in a conical tubular structure. The inside of the conical tubular end of the filling valve body 7 is a conical cavity 23. A valve rod 21 is coaxially connected inside the filling valve body 7. One end of the valve rod 21 is coaxially connected with a conical sealing head 22 that cooperates with the conical cavity 23. The other end of the valve rod 21 penetrates through the filling valve body 7 and is sealingly connected thereto through a sealing seat 19. As Figure 3 shown, when the valve is closed, the conical sealing head 22 moves into the conical cavity 23, which can seal the conical cavity 23, thereby avoiding acetylene residue and leakage at the end of the filling valve body 7 and improving the safety of the filling environment.
[0020] The clamping device includes a U-shaped bracket 1. First mounting seats 2 and second mounting seats 3 are respectively fixedly connected to both ends of the U-shaped bracket 1. The filling valve body 7 is fixedly connected to the first mounting seat 2. A regulating screw 4 is threadedly connected to the second mounting seat 3. The regulating screw 4 is coaxially arranged with the filling valve body 7. A limiting block 14 is fixedly connected to the end of the regulating screw 4 close to the filling valve body 7. A rubber pad 13 is fixedly connected to the side of the limiting block 14 away from the regulating screw 4. A connecting seat 6 is fastened to the end of the regulating screw 4 away from the filling valve body 7. A rotating rod 5 penetrates through the connecting seat 6. Limiting end plates 15 are threadedly connected to both ends of the rotating rod 5. The threaded connection method can facilitate the removal and installation of the limiting end plates 15 from the end of the regulating screw 4, improving the practicability of the device. As Figure 1 shown, during the filling operation, place the device on the top of the gas cylinder 10 so that the regulating valve 12 on the top of the gas cylinder 10 is located between the filling valve body 7 and the limiting block 14. Rotate the rotating rod 5 at the end of the regulating screw 4, which can drive the regulating screw 4 and the connecting seat 6 to rotate, and then push the limiting block 14 against the side wall of the regulating valve 12 and make it in contact therewith. Adjust the connection between the filling valve body 7 and the gas filling pipe 11 on one side of the regulating valve 12, and then the filling operation can be carried out.
[0021] One end of the outer wall of the filling valve body 7 away from the conical cavity 23 is fixedly connected with a U-shaped mounting bracket 17. One side of the U-shaped mounting bracket 17 is fixedly connected with a positioning seat 16. To facilitate the installation and disassembly of the U-shaped mounting bracket 17, the end of the U-shaped mounting bracket 17 is fixedly connected to an annular seat 18, and the annular seat 18 is fastened to the end of the filling valve body 7 by bolts. One end of the valve rod 21 away from the conical sealing head 22 is provided with a threaded section 8, and the threaded section 8 penetrates through the positioning seat 16 and is threadedly connected thereto. A rotary handle 9 is coaxially connected to the end of the valve rod 21 provided with the threaded section 8, which is convenient for the staff to hold, and thus facilitates the rotational adjustment of the valve rod 21. A connecting head 20 is fixed to the bottom of one side of the filling valve body 7 away from the conical cavity 23. The connecting head 20 is used to connect an air delivery pipe 26, and the air delivery pipe 26 is connected to a filling mechanism. A sealing piston 25 is coaxially and fixedly connected to the valve rod 21 located inside the filling valve body 7. The diameter of the sealing piston 25 is equal to the inner diameter of the filling valve body 7. A rubber ring 24 is coaxially and fixedly connected to the outer wall of the sealing piston 25. As Figure 3 shown, when the conical sealing head 22 is located inside the conical cavity 23, the sealing piston 25 moves into the filling valve body 7 between the connecting head 20 and the conical cavity 23, which can prevent the acetylene in the air delivery pipe 26 from entering the space between the sealing piston 25 and the conical cavity 23, and further avoid the leakage of acetylene. When the conical sealing head 22 is removed from the conical cavity 23, the sealing piston 25 moves into the filling valve body 7 between the connecting head 20 and the sealing seat 19, and filling can be carried out.
[0022] In summary, for this anti-leakage valve for acetylene filling, during use, the adjusting valve 12 at the top of the gas cylinder 10 is placed between the filling valve body 7 and the limit block 14. The filling valve body 7 is adjusted to be cooperatively connected with the gas filling pipe 11 on one side of the adjusting valve 12, and the limit block 14 is pushed by the adjusting screw 4 to abut against the side wall of the adjusting valve 12. The rotary handle 9 is rotated to drive the conical sealing head 22 to be removed from the conical cavity 23. At this time, the air delivery pipe 26 is communicated with the filling valve body 7 and the gas filling pipe 11, and filling work can be carried out. After filling is completed, the rotary handle 9 is rotated to drive the conical sealing head 22 to move into the conical cavity 23, which can not only close the filling valve body 7, but also discharge all the acetylene gas in the conical cavity 23, effectively avoiding leakage.
[0023] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model; the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance. In addition, unless otherwise clearly defined and limited, the terms "installed", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations. Moreover, the term "comprising", "including" or any other variation thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or further includes elements inherent to such process, method, article or device.
[0024] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.
Claims
1. An anti-leakage valve for acetylene filling, comprising a filling valve body (7) connected to one end of a clamping device, characterized in that: One end of the filling valve body (7) is sealed and the other end is in a tapered tubular structure. The interior of the tapered tubular end of the filling valve body (7) is a tapered cavity (23). A valve stem (21) is coaxially connected to the interior of the filling valve body (7). One end of the valve stem (21) is coaxially connected to a tapered sealing head (22) that matches the tapered cavity (23). The other end of the valve stem (21) passes through the filling valve body (7) and is sealedly connected to the filling valve body (7) via a sealing seat (19). A U-shaped mounting frame (17) is fixedly connected to the outer wall of one end of the filling valve body (7) away from the conical cavity (23), and a positioning seat (16) is fixedly connected to one side of the U-shaped mounting frame (17). A threaded section (8) is provided at one end of the valve stem (21) away from the conical sealing head (22), and the threaded section (8) passes through the positioning seat (16) and is threadedly connected thereto. A connector (20) is fixed to the bottom of one side of the filling valve body (7) away from the conical cavity (23).
2. The anti-leakage valve for acetylene filling according to claim 1, characterized in that: The end of the U-shaped mounting frame (17) is fixedly connected to the annular seat (18), the annular seat (18) is fastened to the end of the filling valve body (7) by bolts, and the end of the valve stem (21) provided with a threaded section (8) is coaxially connected to a rotary handle (9).
3. The anti-leakage valve for acetylene filling according to claim 1, characterized in that: The clamping device comprises a U-shaped bracket (1), the two ends of the U-shaped bracket (1) are respectively fixedly connected to a first mounting seat (2) and a second mounting seat (3), the filling valve body (7) is fixedly connected to the first mounting seat (2), and the second mounting seat (3) is threadedly connected to an adjusting screw (4), the adjusting screw (4) and the filling valve body (7) are coaxially arranged, and one end of the adjusting screw (4) close to the filling valve body (7) is fixedly connected to a limiting block (14).
4. The anti-leakage valve for acetylene filling according to claim 3 is characterized in that: A connecting seat (6) is fastened to one end of the adjusting screw rod (4) away from the filling valve body (7), a rotating rod (5) is provided through the connecting seat (6), both ends of the rotating rod (5) are threadedly connected to the limit end plate (15), and a rubber pad (13) is fixedly connected to the side of the limit block (14) away from the adjusting screw rod (4).
5. The anti-leakage valve for acetylene filling according to claim 1, characterized in that: A sealing piston (25) is coaxially fixedly connected to a valve stem (21) located inside the filling valve body (7), and the diameter of the sealing piston (25) is equal to the inner diameter of the filling valve body (7).
6. The anti-leakage valve for acetylene filling according to claim 5, characterized in that: A rubber ring (24) is coaxially fixedly connected to the outer wall of the sealing piston (25).