High mountain gas tank switching valve for gas flow regulation

Abstract

The invention relates to the technical field of high-mountain gas tanks, and discloses a high-mountain gas tank switch valve for gas flow regulation, which comprises a valve main body, a regulating knob and a flow regulating rod assembly, the valve body is provided with an air inlet, an air outlet and a flow adjusting cavity communicating with the air inlet and the air outlet. The adjusting knob is connected with the upper end of the valve main body; the upper end of the flow adjusting rod assembly is connected with the adjusting knob, and the lower end of the flow adjusting rod assembly extends into the air inlet through the flow adjusting cavity. The flow adjusting rod assembly is provided with a flow adjusting core located in the flow adjusting cavity. The lower end part of the flow adjusting core is designed from small to large from top to bottom; the lower end of the flow adjusting core closes the flow adjusting cavity. According to the high mountain gas tank switch valve for gas flow adjustment, precise control over the gas flow is achieved, the operation convenience of a user is greatly improved, the high mountain gas tank switch valve is suitable for being used for gas tanks in various complex environments such as high mountains and the field, and the stable requirement for the gas flow in the extreme environments such as the high mountains is met.

Description

Technical Field

[0001] The present invention relates to the technical field of high - mountain gas cylinder valves, and particularly to a high - mountain gas cylinder on - off valve for gas flow regulation. Background Art

[0002] In outdoor activities such as high - mountain exploration and camping, high - mountain gas cylinders are important energy sources for cooking and heating. The accuracy and stability of their flow control are crucial. Traditional high - mountain gas cylinder valves often have problems such as inaccurate flow regulation. Especially in environments with large air pressure changes like high mountains, the stable control of gas flow is more difficult.

[0003] For example, a Chinese patent with the patent application number CN201821255781.9 discloses a high - mountain gas cylinder mini pressure reducing valve, which includes a valve body. The valve body has an air inlet and an air outlet, and also includes a cover body that can cover the valve body. A valve cavity is formed between the cover body and the valve body. A sealing film is provided in the valve cavity. The sealing film is clamped between the cover body and the valve body and divides the valve cavity into a first inner cavity and a second inner cavity. The valve body has an air inlet passage, an air outlet passage and a valve core valve. Among them, the air inlet passage communicates with the air inlet and is connected to the first inner cavity through the valve core valve. The air outlet passage communicates the first inner cavity with the air outlet. There is an adjustment switch for controlling the on - off between the air outlet and the air outlet passage. Specifically, the adjustment switch is a core - making structure, which can open or close the pressure reducing valve and adjust the gas flow to a certain extent. Of course, the adjustment switch can also be set between the air inlet and the air inlet passage. However, the adjustment switch of this high - mountain gas cylinder mini pressure reducing valve can only adjust the gas flow to a certain extent, and still cannot accurately control the gas flow. Especially in environments with large air pressure changes like high mountains, the stable control of gas flow is more difficult. Summary of the Invention

[0004] The object of the present invention is to overcome the problems of the prior art and provide a high - mountain gas cylinder on - off valve for gas flow regulation.

[0005] To achieve the above object, the present invention adopts the following scheme:

[0006] A high - mountain gas cylinder on - off valve for gas flow regulation includes a valve body main body; the valve body main body has an air inlet, an air outlet and a flow regulation cavity communicating the air inlet and the air outlet;

[0007] The high - mountain gas cylinder on - off valve for gas flow regulation further includes:

[0008] An adjustment knob; it is connected to the upper end of the valve body main body and can be adjusted and moved in the up - down direction relative to the valve body main body;

[0009] The flow rate adjusting rod assembly, with its upper end connected to the adjusting knob and its lower end extending through the flow rate adjusting cavity and extending in the direction of the air inlet; the flow rate adjusting rod assembly has a flow rate adjusting core located in the flow rate adjusting cavity; the lower part of the flow rate adjusting core is designed to gradually increase from top to bottom; the lower end of the flow rate adjusting core closes the flow rate adjusting cavity;

[0010] The flow rate adjusting core moves relative to the valve body with the adjusting knob to adjust the size of the gas flow rate.

[0011] Further, the flow rate adjusting rod assembly further includes a connecting push rod and a lower push rod; the connecting push rod, the flow rate adjusting core and the lower push rod are connected in sequence from top to bottom to form an integral body; the connecting push rod is connected to the adjusting knob.

[0012] Further, the connecting push rod, the flow rate adjusting core and the lower push rod are integrally formed.

[0013] Further, the flow rate adjusting core includes a straight column core section and an adjusting core section connected from top to bottom; the adjusting core section is a columnar structure designed to gradually increase from top to bottom.

[0014] Further, the adjusting core section is in the shape of a frustum of a cone with a narrow upper part and a wide lower part; the straight column core section is in the shape of a cylinder; the diameter of the upper end of the adjusting core section is the same as the diameter of the straight column core section.

[0015] Further, the diameter of the straight column core section is 17 - 18 mm; the diameter of the lower end of the adjusting core section is 21 - 25 mm.

[0016] Further, the diameter of the lower end of the flow rate adjusting core is greater than the diameter of the lower end opening of the flow rate adjusting cavity.

[0017] Further, the valve body main body has a knob mounting hole that is in communication with the flow rate adjusting cavity and is threadedly connected to the adjusting knob in a matching manner.

[0018] Further, the valve body main body has an air inlet connection part and an air outlet connection part; the air inlet connection part and the air outlet connection part respectively have an air inlet cavity and an air outlet cavity that are both in communication with the flow rate adjusting cavity; the air inlet and the air outlet are respectively installed on the air inlet connection part and the air outlet connection part and are respectively in communication with the air inlet cavity and the air outlet cavity.

[0019] Further, both the air inlet connection part and the air outlet connection part are threaded connection structures.

[0020] Compared with the existing technology, the present invention has the following advantages:

[0021] 1. The present invention combines the valve body main body, the adjusting knob and the flow rate adjusting rod assembly, improves the design of the flow rate adjusting rod assembly, and designs the lower part of the flow rate adjusting core to gradually increase in size from top to bottom. Moreover, the lower end of the flow rate adjusting core can close the flow rate adjusting cavity. During use, the user adjusts the lifting of the flow rate adjusting rod assembly through the adjusting knob, making the flow rate adjusting rod assembly move synchronously relative to the valve body main body in the up and down direction with the adjusting knob, which can drive the flow rate adjusting core to move up and down in the flow rate adjusting cavity, changing the positional relationship between the lower part of the flow rate adjusting core and the flow rate adjusting cavity. Due to the special design of the flow rate adjusting core, when the adjusting knob is adjusted to move upward, the cross-sectional area of the gas flow at the flow rate adjusting cavity decreases, and the flow rate decreases; when the adjusting knob is adjusted to move downward, the cross-sectional area of the gas flow at the flow rate adjusting cavity increases, and the flow rate increases. This adjustment method with the flow rate gradually increasing from top to bottom realizes the precise control of the gas flow rate, greatly improves the operation convenience of the user, and has stable and reliable performance, which is suitable for the use of gas cylinders in various complex environments such as high mountains and the wild, meeting the stable demand for gas flow rate in extreme environments such as high mountains.

[0022] 2. The present invention adopts the operation of the adjusting knob, and the design of the adjusting knob is intuitive and the operation is simple. The user can easily master the gas flow rate adjustment method without professional training.

[0023] 3. The present invention uses the lower end of the flow rate adjusting core to close the flow rate adjusting cavity. While realizing the precise control of the gas flow rate, it can also close the gas flow, effectively preventing gas leakage and improving the safety of use. Through the innovative design of the flow rate adjusting core, the precise control of the gas flow rate and the improvement of the operation simplicity are realized, providing a safer and more reliable gas control solution for outdoor activities such as high mountain exploration and outdoor camping. Brief Description of the Drawings

[0024] The following further elaborates on the present application in detail in conjunction with the drawings and specific embodiments.

[0025] Figure 1 is one of the exploded three-dimensional structural schematic diagrams of the high mountain gas cylinder switch valve for gas flow rate adjustment of the present invention.

[0026] Figure 2 is the three-dimensional structural schematic diagram of the high mountain gas cylinder switch valve for gas flow rate adjustment of the present invention.

[0027] Figure 3 is the second exploded three-dimensional structural schematic diagram of the high mountain gas cylinder switch valve for gas flow rate adjustment of the present invention.

[0028] Figure 4 is the sectional structural schematic diagram of one angle of the high mountain gas cylinder switch valve for gas flow rate adjustment of the present invention.

[0029] Figure 5 It is a three-dimensional structural schematic diagram of the valve body main body of the present invention.

[0030] Figure 6 It is a three-dimensional structural schematic diagram of the flow rate adjusting rod assembly of the present invention.

[0031] The figure includes:

[0032] Valve body main body 1, air inlet 11, air outlet 12, flow rate adjustment chamber 13, knob mounting hole 14, air inlet connection part 15, air inlet chamber 151, air outlet connection part 16, air outlet chamber 161, adjustment knob 2, flow rate adjusting rod assembly 3, connecting push-pull rod 31, flow rate adjusting core 32, straight column core section 321, adjusting core section 322, lower ejector rod 33. Specific embodiments

[0033] The following combines the drawings and embodiments to further describe in detail the specific embodiments of the present invention. The following embodiments are used to illustrate the present invention, but are not used to limit the scope of the present invention.

[0034] Such as Figures 1 to 6As shown in the figure, a high mountain gas cylinder on-off valve for gas flow regulation includes a valve body main body 1, an adjustment knob 2, and a flow regulation rod assembly 3. The valve body main body 1 has an air inlet 11, an air outlet 12, and a flow regulation chamber 13 connecting the air inlet 11 and the air outlet 12. The adjustment knob 2 is connected to the upper end of the valve body main body 1 and can be adjusted and moved in the up and down direction relative to the valve body main body 1. The adjustment knob 2 is designed intuitively and is easy to operate. The user only needs to gently rotate or push and pull to adjust the gas flow, and can easily master the gas flow adjustment method without professional training. The upper end of the flow regulation rod assembly 3 is connected to the adjustment knob 2, and its lower end extends through the flow regulation chamber 13 and extends in the direction of the air inlet 11. The flow regulation rod assembly 3, as the core component of flow regulation, is ingeniously designed and reasonably structured, ensuring the precise control of gas flow. The flow regulation rod assembly 3 has a flow regulation core 32 located in the flow regulation chamber 13. The flow regulation core 32 is located in the flow regulation chamber 13, which is the core innovation point of this application. The lower end part of the flow regulation core 32 is designed to gradually increase from small to large from top to bottom. The lower end part of the flow regulation core 32 is similar to a unique frustum structure, so that when the gas passes through, with the movement of the adjustment knob 2, the flow cross-sectional area gradually changes, thereby realizing the precise adjustment of the flow rate from small to large from top to bottom. The lower end of the flow regulation core 32 closes the flow regulation chamber 13. The flow regulation core 32 moves relative to the valve body with the adjustment knob 2 to adjust the gas flow rate. By using the lower end of the flow regulation core 32 to close the flow regulation chamber 13, while realizing the precise control of gas flow, the gas flow can also be closed, effectively preventing gas leakage and improving the safety of use. Through the innovative design of the flow regulation core 32, the precise control of gas flow and the improvement of operation simplicity are realized, providing a safer and more reliable gas control solution for outdoor activities such as high mountain exploration and camping.

[0035] The high-altitude gas cylinder switch valve for gas flow regulation combines a valve body main body 1, an adjustment knob 2, and a flow regulation rod assembly 3. By improving the design of the flow regulation rod assembly 3, the size of the lower part of the flow regulation core 32 is designed to increase from top to bottom, and the lower end of the flow regulation core 32 can close the flow regulation chamber 13. During use, the user adjusts the flow regulation rod assembly 3 up and down through the adjustment knob 2, causing the flow regulation rod assembly 3 to move synchronously relative to the valve body main body 1 in the up and down direction with the adjustment knob 2. This can drive the flow regulation core 32 to move up and down in the flow regulation chamber 13, changing the positional relationship between the lower part of the flow regulation core 32 and the flow regulation chamber 13. Due to the special design of the flow regulation core 32, when the adjustment knob 2 is adjusted upward, the cross-sectional area of the gas flow at the flow regulation chamber 13 decreases, and the flow rate decreases until it reduces to zero; when the adjustment knob 2 is adjusted downward, the cross-sectional area of the gas flow at the flow regulation chamber 13 increases, and the flow rate increases. This adjustment method where the flow rate gradually increases from top to bottom achieves precise control of the gas flow, greatly improving the operation convenience for users. Moreover, it has stable and reliable performance, is suitable for the use of gas cylinders in various complex environments such as high mountains and the wild, and meets the stable demand for gas flow in extreme environments such as high mountains.

[0036] In this embodiment, the flow regulation rod assembly 3 further includes a connecting push-pull rod 31 and a lower push rod 33; the connecting push-pull rod 31, the flow regulation core 32, and the lower push rod 33 are connected in sequence from top to bottom to form an integral body; the connecting push-pull rod 31 is connected to the adjustment knob 2. For the connection between the connecting push-pull rod 31 and the adjustment knob 2, a groove adapted to the connecting push-pull rod 31 can be provided on the adjustment knob 2 to achieve the inlaid connection between the adjustment knob 2 and the connecting push-pull rod 31, or a snap connection method can be used to achieve the connection between the two, or even a welding method can be used to achieve the connection between the two. Of course, other methods can also be used to achieve the connection between the two, as long as the structure is stable and reliable. When the flow regulation rod assembly 3 is assembled, the upper end of the flow regulation rod assembly 3 enters from the air inlet 11, passes through the flow regulation chamber 13, and then is connected to the adjustment knob 2. By connecting the connecting push-pull rod 31, the flow regulation core 32, and the lower push rod 33 to form an integral body to form the flow regulation rod assembly 3, while achieving precise control of the gas flow, it can also close the gas flow, effectively preventing gas leakage and improving the safety of use. Through the innovative design of the flow regulation core 32, precise control of the gas flow and improvement of operation simplicity are achieved, providing a safer and more reliable gas control solution for outdoor activities such as high-altitude exploration and camping in the wild. In addition, the lower push rod 33 can better press and open gas cylinders such as high-altitude gas cylinders, realizing the connection between the high-altitude gas cylinder switch valve and the high-altitude gas cylinder.

[0037] Preferably, the push rod 31, the flow adjustment core 32, and the lower push rod 33 are integrally formed. With such a design of the flow adjustment rod assembly 3, the structural connection is stable and reliable, there are fewer parts to be assembled, and the assembly efficiency is high.

[0038] In this embodiment, for the design of the flow adjustment core 32, the flow adjustment core 32 includes a straight column core section 321 and an adjustment core section 322 connected from top to bottom; the adjustment core section 322 is a columnar structure designed to be gradually larger from top to bottom. The adjustment core section 322 is in the shape of a frustum of a cone with a narrow upper part and a wide lower part; the straight column core section 321 is in the shape of a cylinder. The diameter of the upper end of the adjustment core section 322 is greater than or equal to the diameter of the straight column core section 321; with such a design of the flow adjustment core 32 formed by the straight column core section 321 and the adjustment core section 322, using the adjustment core section 322 as the lower part of the flow adjustment core 32, when the adjustment knob 2 is moved upward, the cross-sectional area of the gas flow passage at the flow adjustment chamber 13 decreases, the flow rate decreases until it reduces to zero; when the adjustment knob 2 is moved downward, the cross-sectional area of the gas flow passage at the flow adjustment chamber 13 increases, the flow rate increases until the adjustment core section 322 is completely located below the flow adjustment chamber 13, and the straight column core section 321 is within the flow adjustment chamber 13, the cross-sectional area of the gas flow passage at the flow adjustment chamber 13 remains unchanged, and the flow rate also remains unchanged. This gas flow adjustment method realizes the precise control of the gas flow rate, greatly improves the operation convenience of users, and has stable and reliable performance. It is suitable for the use of gas cylinders in various complex environments such as high mountains and the wild, and meets the stable demand for gas flow rate in extreme environments such as high mountains.

[0039] Preferably, the diameter of the straight column core section 321 is 17 - 18 mm; specifically, it can be 17.2 mm or 17.5 mm. The diameter of the lower end of the adjustment core section 322 is 21 - 25 mm, specifically, it can be 21.4 mm, 22 mm, or 24 mm. Of course, the diameter sizes of the straight column core section 321 and the adjustment core section 322 are not limited to this, and other sizes can also be reasonably designed according to requirements.

[0040] In order to better achieve the lower end of the flow adjustment core 32 to seal and close the flow adjustment chamber 13 and achieve the effect of closing the gas flow, the diameter of the lower end of the flow adjustment core 32 is greater than the diameter of the lower end orifice of the flow adjustment chamber 13. With such a design of the diameter of the lower end of the flow adjustment core 32, there is a larger sealing and closing area, which can better close the gas flow. Of course, a sealing ring through which the flow adjustment core 32 can move is fitted in the lower end orifice of the flow adjustment chamber 13 in a matching manner. When the lower end of the flow adjustment core 32 closes the lower end orifice of the flow adjustment chamber 13, the sealing and closing effect is better.

[0041] In this embodiment, for the valve body main body, the valve body main body 1 is provided with a knob mounting hole 14 that communicates with the flow rate adjustment chamber 13 and is threadedly connected to the adjustment knob 2 in a matching manner. By designing the knob mounting hole 14 in this way, the adjustment knob 2 is threadedly connected to the knob mounting hole 14 in a matching manner, and the operation of screwing and adjusting the adjustment knob 2 is simpler and more convenient. Of course, the adjustment knob 2 can also be considered to be pushed and pulled to achieve the lifting of the adjustment knob 2, and reasonable design can be carried out. In addition, the valve body main body 1 is provided with an air inlet connection part 15 and an air outlet connection part 16; the air inlet connection part 15 and the air outlet connection part 16 are respectively provided with an air inlet chamber 151 and an air outlet chamber 161 that both communicate with the flow rate adjustment chamber 13; the air inlet 11 and the air outlet 12 are respectively installed on the air inlet connection part 15 and the air outlet connection part 16 and are respectively communicated with the air inlet chamber 151 and the air outlet chamber 161. With such a design, the air inlet connection part 15 and the air outlet connection part 16 can achieve stable connection between the high-altitude gas cylinder switch valve for gas flow rate adjustment and the high-altitude gas cylinder, as well as with gas equipment. When the position of the flow rate adjustment rod assembly 3 is adjusted, gas exits from the high-altitude gas cylinder, and then successively passes through the air inlet 11, the air inlet chamber 151, the flow rate adjustment chamber 13, the air outlet chamber 161, the air outlet 12, and then to the gas equipment for use.

[0042] Preferably, both the air inlet connection part 15 and the air outlet connection part 16 are threaded connection structures. In this way, when connecting with the high-altitude gas cylinder and gas equipment, the structural connection is stable and reliable, the disassembly and assembly are convenient, and it is convenient for users to operate.

[0043] In summary, the embodiment of the present invention provides a high-altitude gas cylinder switch valve for gas flow rate adjustment. Among them, the high-altitude gas cylinder switch valve for gas flow rate adjustment has the following advantages:

[0044] 1. By combining the valve body main body 1, the adjustment knob 2 and the flow rate adjustment rod assembly 3, and improving the design of the flow rate adjustment rod assembly 3, the size of the lower part of the flow rate adjustment core 32 is designed to increase from top to bottom, and the lower end of the flow rate adjustment core 32 can close the flow rate adjustment chamber 13. During use, the user adjusts the lift of the flow rate adjustment rod assembly 3 through the adjustment knob 2, so that the flow rate adjustment rod assembly 3 moves synchronously with the adjustment knob 2 in the up and down direction relative to the valve body main body 1, which can drive the flow rate adjustment core 32 to move up and down in the flow rate adjustment chamber 13, changing the positional relationship between the lower part of the flow rate adjustment core 32 and the flow rate adjustment chamber 13. Due to the special design of the flow rate adjustment core 32, when the adjustment knob 2 is adjusted to move upward, the cross-sectional area of the gas flow at the flow rate adjustment chamber 13 decreases, and the flow rate decreases; when the adjustment knob 2 is adjusted to move downward, the cross-sectional area of the gas flow at the flow rate adjustment chamber 13 increases, and the flow rate increases. This adjustment method with the flow rate gradually increasing from top to bottom realizes the precise control of the gas flow rate, greatly improves the operation convenience of the user, and has stable and reliable performance, which is suitable for the use of gas cylinders in various complex environments such as high mountains and the wild, and meets the stable demand for gas flow rate in extreme environments such as high mountains.

[0045] 2. The adjustment knob 2 is used for operation, and the design of the adjustment knob 2 is intuitive and the operation is simple. The user can easily master the method of adjusting the gas flow rate without professional training.

[0046] 3. By using the lower end of the flow rate adjustment core 32 to close the flow rate adjustment chamber 13, while realizing the precise control of the gas flow rate, the gas flow can also be closed, effectively preventing gas leakage and improving the safety of use. Through the innovative design of the flow rate adjustment core 32, the precise control of the gas flow rate and the improvement of the operation simplicity are realized, providing a safer and more reliable gas control solution for outdoor activities such as high mountain exploration and outdoor camping.

[0047] The above is only the preferred embodiment of the present application. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present application, several improvements and replacements can be made, and these improvements and replacements should also be regarded as the protection scope of the present application.

Claims

1. An alpine gas cylinder on-off valve for gas flow regulation, comprising a valve body main body; characterized in that, The valve body main body has an air inlet, an air outlet, and a flow regulation chamber communicating the air inlet and the air outlet; The high mountain gas tank switch valve for gas flow regulation further includes: An adjustment knob; which is connected to the upper end of the valve body main body and can be adjusted and moved in the up and down direction relative to the valve body main body; A flow regulation rod assembly, the upper end of which is connected to the adjustment knob, and the lower end of which extends through the flow regulation chamber and extends in the direction of the air inlet; the flow regulation rod assembly has a flow regulation core located in the flow regulation chamber; the lower end portion of the flow regulation core is designed to increase from small to large from top to bottom; the lower end of the flow regulation core closes the flow regulation chamber; The flow regulation core moves relative to the valve body with the adjustment knob to adjust the size of the gas flow.

2. The high mountain gas tank on-off valve for gas flow regulation according to claim 1, characterized in that The flow regulation rod assembly further includes a connecting push rod and a lower push rod; the connecting push rod, the flow regulation core, and the lower push rod are connected in sequence from top to bottom to form an integral body; the connecting push rod is connected to the adjustment knob.

3. The high mountain gas tank on-off valve for gas flow regulation according to claim 2, characterized in that, The connecting push rod, the flow regulation core, and the lower push rod are integrally formed.

4. The alpine gas cylinder on-off valve for gas flow regulation according to claim 1 or 2, characterized in that, The flow regulation core includes a straight column core section and an adjustment core section connected in sequence from top to bottom; the adjustment core section is a columnar structure designed to increase from small to large from top to bottom.

5. The high mountain gas tank on-off valve for gas flow regulation according to claim 4, characterized in that, The adjustment core section is in the shape of a frustum of a cone with a narrow upper part and a wide lower part; the straight column core section is in the shape of a cylinder.

6. The high mountain gas tank on-off valve for gas flow regulation according to claim 4, characterized in that The diameter of the straight column core section is 17-18 mm; the diameter of the upper end of the adjustment core section is the same as the diameter of the straight column core section; the diameter of the lower end of the adjustment core section is 21-25 mm.

7. The alpine gas cylinder on-off valve for gas flow regulation according to claim 1, characterized in that The diameter of the lower end of the flow regulation core is larger than the diameter of the lower end opening of the flow regulation chamber.

8. The high mountain gas tank on-off valve for gas flow regulation according to claim 1, characterized in that, The valve body main body has a knob mounting hole channel communicating with the flow regulation chamber and threadedly connected to the adjustment knob.

9. The high mountain gas tank on-off valve for gas flow regulation according to claim 1, characterized in that, The valve body main body has an air inlet connection part and an air outlet connection part; the air inlet connection part and the air outlet connection part respectively have an air inlet chamber and an air outlet chamber both communicating with the flow regulation chamber; the air inlet and the air outlet are respectively installed on the air inlet connection part and the air outlet connection part and respectively communicate with the air inlet chamber and the air outlet chamber.

10. The high mountain gas tank on-off valve for gas flow regulation according to claim 9, characterized in that, Both the air inlet connection part and the air outlet connection part are threaded connection structures.

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