A gas tank flow regulating valve

Abstract

The utility model discloses a kind of gas tank flow regulating valves, it includes installation valve body, regulating valve piece and gas outlet component, the upper end of this installation valve body is recessed with adjusting slot, the regulating valve piece can be adjusted and connect in this adjusting slot, the lower side end of this adjusting slot is opened with gas outlet hole, the gas outlet component is fixedly connected in this gas outlet hole, the inner bottom of this adjusting slot is equipped with sealing cone groove, the bottom of this regulating valve piece is equipped with the sealing cone head compatible with this sealing cone groove, the sealing cone head is embedded into the sealing cone groove and forms conical surface sealing connection.The gas tank flow regulating valve of the utility model is realized by screw thread transmission the up-and-down movement of regulating valve piece, so that sealing cone head generates controllable gap in sealing cone groove, to realize the accurate regulation of gas flow, in closed state, sealing cone head and sealing cone groove are closely combined, form high-efficiency conical surface sealing, ensure that gas circuit is completely cut off.

Description

Technical Field

[0001] This utility model belongs to the field of regulating valve technology, specifically relating to a gas tank flow regulating valve. Background Technology

[0002] Gas cylinders, as common gas storage and supply devices, are widely used in industrial production, domestic gas supply, and laboratory equipment. To ensure safe gas use and precise flow control, a flow regulating valve is usually installed at the gas cylinder outlet. Most existing gas cylinder flow regulating valves adopt a planar sealing structure, which relies on the mating of the valve core and valve seat to block the gas path. However, this structure is prone to wear of the sealing surface under high pressure or frequent opening and closing conditions, leading to a decrease in sealing performance and a risk of gas leakage. At the same time, the planar sealing structure lacks a self-cleaning function during closing or opening, and the adhesion of impurities makes it more likely to cause seal failure.

[0003] Therefore, overcoming the shortcomings of the existing technology is an urgent problem to be solved in this technical field. Utility Model Content

[0004] In view of the technical problems mentioned in the background art, the purpose of this utility model is to provide a gas tank flow regulating valve to solve the technical problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a gas tank flow regulating valve, comprising a mounting valve body, a regulating valve component, and a gas outlet component. The upper end of the mounting valve body is recessed with an regulating groove, and the regulating valve component is tunably connected in the regulating groove. The lower end of the regulating groove is provided with a gas outlet hole, and the gas outlet component is fixedly connected in the gas outlet hole. The inner bottom of the regulating groove is provided with a sealing cone groove, and the bottom of the regulating valve component is provided with a sealing cone head adapted to the sealing cone groove. The sealing cone head is embedded in the sealing cone groove to form a conical surface sealing connection.

[0006] Furthermore, the inner sidewall of the regulating groove is provided with a first air volume regulating thread and a first fastening regulating thread, and the outer sidewall of the regulating valve is provided with a second air volume regulating thread and a second fastening regulating thread. The second air volume regulating thread and the first air volume regulating thread are threadedly connected, and the second fastening regulating thread and the first fastening regulating thread are threadedly connected.

[0007] Furthermore, the lower end of the regulating valve is recessed with a valve sealing groove, in which a first valve sealing ring and a second valve sealing ring are sequentially fitted.

[0008] Furthermore, the upper end of the regulating valve is provided with a valve adjusting head, and the outer surface of the valve adjusting head is evenly provided with several anti-slip ridges.

[0009] Furthermore, the air outlet component includes an air outlet tube, an air outlet connector, and a fixing screw head. The rear end of the air outlet tube is provided with a tube screw head, which is threadedly connected to the air outlet hole. The air outlet connector is connected to the inside of the air outlet tube. The front end of the air outlet tube is provided with a fixing screw groove, which is threadedly engaged with the fixing screw head. After the fixing screw head is tightened, it can press and fix the air outlet connector inside the air outlet tube.

[0010] Furthermore, the rear end of the air outlet connector is provided with a connector sealing groove, in which a first connector sealing ring and a second connector sealing ring are sequentially fitted.

[0011] This utility model has the following advantages: The upper end of the mounting valve body is recessed with an adjusting groove, and the adjusting valve component is adjustablely connected in this adjusting groove. The lower end of the adjusting groove has a threaded air outlet hole, and the air outlet component is fixedly connected in this air outlet hole. The inner bottom of the adjusting groove has a sealing cone groove, and the bottom of the adjusting valve component has a sealing cone head adapted to the sealing cone groove. The sealing cone head is embedded in the sealing cone groove to form a conical surface seal. The gas tank flow regulating valve of this utility model achieves the up-and-down movement of the adjusting valve component through threaded transmission, causing the sealing cone head to generate a controllable gap within the sealing cone groove, thereby achieving precise adjustment of the gas flow. In the closed state, the sealing cone head and the sealing cone groove are tightly fitted, forming a highly efficient conical surface seal, ensuring complete cutoff of the gas path. Compared with traditional planar sealing structures, this valve has reliable sealing, good self-cleaning effect, high adjustment sensitivity, and strong structural stability, effectively adapting to the usage requirements of gas tanks under different pressure and temperature conditions. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model.

[0013] Figure 2 This is a schematic diagram of the overall exploded structure of this utility model.

[0014] Figure 3 This is a schematic diagram of the installation valve body structure of this utility model.

[0015] Figure 4 This is a schematic diagram of the regulating valve structure of this utility model.

[0016] Reference numerals: mounting valve body 10; adjusting valve component 20; air outlet component 30; adjusting groove 11; air outlet hole 12; sealing cone groove 111; sealing cone head 21; first air volume adjusting thread 112; first fastening adjusting thread 113; second air volume adjusting thread 22; second fastening adjusting thread 23; valve component sealing groove 24; first valve component sealing ring 25; second valve component sealing ring 26; valve component adjusting head 27; anti-slip convex strip 271; air outlet sleeve 31; air outlet connector 32; fixing screw head 33; sleeve screw head 311; fixing screw groove 312; connector sealing groove 321; first connector sealing ring 322; second connector sealing ring 323. Detailed Implementation

[0017] like Figures 1 to 4 As shown, a gas tank flow regulating valve includes a mounting valve body 10, a regulating valve component 20, and a gas outlet component 30. The upper end of the mounting valve body 10 is recessed with an adjusting groove 11, and the regulating valve component 20 is adjustablely connected in the adjusting groove 11. The lower end of the adjusting groove 11 is provided with a threaded gas outlet hole 12, and the gas outlet component 30 is fixedly connected in the gas outlet hole 12. The structure is simple and the assembly is convenient.

[0018] In practical implementation, the inner bottom of the regulating groove 11 is provided with a sealing cone groove 111, and the bottom of the regulating valve 20 is provided with a sealing cone head 21 that is adapted to the sealing cone groove 111. The sealing cone head 21 is embedded in the sealing cone groove 111 to form a conical surface sealing connection. In use, the user rotates the regulating valve 20, causing the regulating valve 20 to move up and down along the regulating groove 11, thereby driving the sealing cone head 21 to rise and fall in the sealing cone groove 111. When the regulating valve 20 is rotated to the closed position, the sealing cone head 21 and the sealing cone groove 111 are tightly fitted to form a high-pressure conical surface seal, effectively blocking the gas path and preventing gas leakage; when the regulating valve 20 gradually moves upward, a controllable gap is generated between the sealing cone head 21 and the sealing cone groove 111, and the gas flows through the gap to the gas outlet 12, and then is discharged through the gas outlet component 30, realizing precise adjustment of the airflow. This design utilizes a shallow sealing structure with conical contact, which not only results in a higher specific pressure and better sealing effect under the same tightening torque, but also provides a self-cleaning function due to the scraping effect generated by the relative rotation of the conical surfaces during the opening and closing operation, further improving the service life and sealing reliability of the valve.

[0019] In practical implementation, the inner sidewall of the regulating groove 11 is provided with a first air volume regulating thread 112 and a first fastening regulating thread 113, and the outer sidewall of the regulating valve 20 is provided with a second air volume regulating thread 22 and a second fastening regulating thread 23. The second air volume regulating thread 22 and the first air volume regulating thread 112 are threadedly connected to each other, which is used to drive the regulating valve 20 to move up and down axially, thereby changing the gap between the sealing cone 21 and the sealing cone groove 111, so as to achieve fine adjustment of the air volume. The second fastening regulating thread 23 and the first fastening regulating thread 113 are threadedly connected to each other, which is used to lock the regulating valve 20 in the corresponding position after the air volume adjustment is completed, to prevent it from loosening under gas pressure fluctuations or external forces, and to ensure stability and safety. In use, the user first rotates the regulating valve 20, relying on the gas volume regulating thread pair to realize the up and down displacement of the valve core, thereby regulating the gas flow rate; when the preset flow rate is reached, continue to rotate to make the fastening thread pair engage and lock, thereby fixing the adjustment position and preventing the regulating valve from shifting on its own.

[0020] In practical implementation, the lower end of the regulating valve 20 is recessed with a valve sealing groove 24, in which a first valve sealing ring 25 and a second valve sealing ring 26 are sequentially fitted. The first valve sealing ring 25 and the second valve sealing ring 26 form a double sealing ring structure design, which gives the regulating valve 20 a double insurance function during operation: on the one hand, it improves the stability and durability of the seal, and on the other hand, it can continue to maintain safe use when a single sealing ring is damaged, which significantly improves the reliability and safety of the gas tank flow regulating valve.

[0021] In practical implementation, the upper end of the regulating valve 20 is provided with a valve adjusting head 27. The outer surface of the valve adjusting head 27 is evenly provided with several anti-slip protrusions 271. During use, the user can drive the regulating valve 20 to rotate by rotating the valve adjusting head 27, thereby causing the sealing cone 21 to move up and down in the sealing cone groove 111, achieving the opening and closing of the gas flow and precise regulation. The anti-slip protrusions 271 significantly increase friction during operation, avoiding inconvenience caused by hand slippage, and also reduce the torque required for operation, allowing the user to perform stable and reliable adjustments even in high-pressure environments or when hands are wet or gloves are worn.

[0022] In practical implementation, the gas outlet component 30 includes a gas outlet sleeve 31, a gas outlet connector 32, and a fixing screw head 33. The gas outlet sleeve 31 has a sleeve screw head 311 at its rear end, which is threaded into the gas outlet hole 12 for reliable fixation to the mounting valve body 10. The gas outlet connector 32 is connected inside the gas outlet sleeve 31, serving to discharge gas and facilitating connection to downstream gas pipelines. The gas outlet sleeve 31 has a fixing screw groove 312 at its front end, which is threaded into the fixing screw head 33. When tightened, the fixing screw head 33 presses the gas outlet connector 32 firmly into the gas outlet sleeve 31, preventing it from loosening due to gas pressure fluctuations or external forces during use. During use, gas flows from the mounting valve body 10 into the gas outlet cylinder 31, and then exits through the gas outlet connector 32. The locking action of the fixing screw head 33 ensures the stability and sealing of the gas outlet connector 32. Through this structural design, the gas outlet component 30 can not only be easily disassembled and replaced, but also achieve reliable sealing and pressure-resistant fixing, significantly improving the safety and durability of the gas tank flow regulating valve.

[0023] In practical implementation, the rear end of the gas outlet connector 32 is provided with a connector sealing groove 321. A first connector sealing ring 322 and a second connector sealing ring 323 are sequentially fitted into the connector sealing groove 321. During use, when the gas outlet connector 32 is inserted into the gas outlet sleeve 31, the first connector sealing ring 322 fits against the inner wall of the gas outlet sleeve 31 to form a primary seal, ensuring that the gas will not leak under normal operating conditions. When the gas pressure inside the gas tank increases or the ambient temperature changes, causing the first connector sealing ring 322 to deform, the second connector sealing ring 323 further fits tightly against the inner wall of the gas outlet sleeve 31 to form an auxiliary seal. Through this double sealing ring design, the gas outlet connector 32 can maintain a stable seal under different pressure and temperature conditions, preventing gas leakage and extending the service life of the sealing rings, thereby improving the overall safety and reliability of the gas tank flow regulating valve.

[0024] In summary, the upper end of the mounting valve body 10 is recessed with an adjustment groove 11, and the adjustment valve component 20 is adjustablely connected in the adjustment groove 11. The lower end of the adjustment groove 11 is provided with a threaded air outlet hole 12, and the air outlet component 30 is fixedly connected in the air outlet hole 12. The inner bottom of the adjustment groove 11 is provided with a sealing cone groove 111, and the bottom of the adjustment valve component 20 is provided with a sealing cone head 21 that is adapted to the sealing cone groove 111. The sealing cone head 21 is embedded in the sealing cone groove 111 to form a cone surface seal connection. The gas tank flow regulating valve of this utility model realizes the up and down movement of the regulating valve component through threaded transmission, so that the sealing cone head generates a controllable gap in the sealing cone groove, thereby realizing the precise regulation of gas flow. In the closed state, the sealing cone head and the sealing cone groove are tightly fitted to form a high-efficiency cone surface seal, ensuring that the gas path is completely cut off. Compared with traditional planar sealing structures, this valve has reliable sealing, good self-cleaning effect, high adjustment sensitivity, and strong structural stability, and can effectively adapt to the use requirements of gas tanks under different pressure and temperature conditions.

Claims

1. A gas tank flow regulating valve, characterized in that, It includes a mounting valve body (10), a regulating valve (20), and an air outlet component (30). The upper end of the mounting valve body (10) is recessed with an adjusting groove (11). The regulating valve (20) is adjustablely connected in the adjusting groove (11). The lower end of the adjusting groove (11) is provided with an air outlet hole (12). The air outlet component (30) is fixedly connected in the air outlet hole (12). The inner bottom of the adjusting groove (11) is provided with a sealing cone groove (111). The bottom of the regulating valve (20) is provided with a sealing cone head (21) that is adapted to the sealing cone groove (111). The sealing cone head (21) is embedded in the sealing cone groove (111) to form a cone surface sealing connection.

2. The gas tank flow regulating valve according to claim 1, characterized in that, The inner sidewall of the regulating groove (11) is provided with a first air volume regulating thread (112) and a first fastening regulating thread (113). The outer sidewall of the regulating valve (20) is provided with a second air volume regulating thread (22) and a second fastening regulating thread (23). The second air volume regulating thread (22) and the first air volume regulating thread (112) are threadedly connected. The second fastening regulating thread (23) and the first fastening regulating thread (113) are threadedly connected.

3. The gas tank flow regulating valve according to claim 2, characterized in that, The lower end of the regulating valve (20) is recessed with a valve sealing groove (24), in which a first valve sealing ring (25) and a second valve sealing ring (26) are sequentially fitted.

4. The gas tank flow regulating valve according to claim 1, characterized in that, The upper end of the regulating valve (20) is provided with a valve regulating head (27), and the outer side of the valve regulating head (27) is evenly provided with several anti-slip ridges (271).

5. The gas tank flow regulating valve according to claim 1, characterized in that, The air outlet component (30) includes an air outlet tube (31), an air outlet connector (32), and a fixing screw head (33). The rear end of the air outlet tube (31) is provided with a tube screw head (311), which is threadedly connected to the air outlet hole (12). The air outlet connector (32) is connected to the inside of the air outlet tube (31). The front end of the air outlet tube (31) is provided with a fixing screw groove (312), which is threadedly engaged with the fixing screw head (33). After the fixing screw head (33) is tightened, it can press and fix the air outlet connector (32) inside the air outlet tube (31).

6. The gas tank flow regulating valve according to claim 5, characterized in that, The rear end of the air outlet connector (32) is provided with a connector sealing groove (321), in which a first connector sealing ring (322) and a second connector sealing ring (323) are sequentially fitted.

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