Portable fuel gas supply device

By designing a portable gas supply device with a multi-cylinder connection and adjustment mechanism, the problems of limited functionality and weak safety of existing devices are solved. This enables gas supply to multiple appliances and safe pressure relief, improving the flexibility and safety of outdoor use.

CN223840157UActive Publication Date: 2026-01-27QINGDAO SHENTEQI ELECTRICAL APPLIANCE CO LTD
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Patent Information

Application Number
CN202520462089.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-17
Publication Date
2026-01-27
Estimated Expiration
2035-03-17

AI Technical Summary

Technical Problem

Existing gas supply devices are limited in function, lack flexibility, and have weak safety, failing to meet the needs of various outdoor use scenarios.

Method used

A portable gas supply device is designed, comprising multiple gas cylinder connection mechanisms, a gas output mechanism, a first regulating mechanism, and a second regulating mechanism. This enables gas circulation within the supply device and gas supply to multiple gas appliances. The regulating mechanism also adjusts the gas flow rate and pressure relief to improve safety.

Benefits of technology

This allows a single gas cylinder to power multiple gas appliances, improving the flexibility and safety of the device and enhancing the user experience.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223840157U_ABST
Patent Text Reader

Abstract

A portable fuel gas supply device comprises an adapter which comprises a first channel, a second channel, a third channel and a fourth channel, the first channel is communicated with the second channel and the third channel, and the fourth channel can be communicated with the second channel and the outside; the gas cylinder connecting mechanism is fixedly connected with the adapter, the gas cylinder connecting mechanism comprises a gas inlet, and the gas inlet is communicated with the second channel; the gas output mechanism comprises a gas outlet and a blocking piece mechanism, the gas outlet can be communicated with the fourth channel, and the blocking piece mechanism is in separable sealing connection with the fourth channel; the first adjusting mechanism comprises a fifth channel and a sixth channel which are communicated with each other, and the sixth channel is communicated with the second channel; the second adjusting mechanism is in separable sealing connection with the third channel; the gas supply device has the advantages that the gas supply device is convenient to carry, can be used in various use scenes, can be used for a plurality of outdoor gas appliances through one gas cylinder, is high in safety coefficient and flexibility, and improves the experience feeling of a user.
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Description

Technical Field

[0001] This utility model belongs to the technical field of gas supply accessories, specifically relating to a portable gas supply device. Background Technology

[0002] Gas supply devices, as gas supply accessories, can be used in various scenarios, such as camping, picnics, or outdoor adventures. They facilitate the use of small devices like gas stoves, gas lamps, or gas water heaters, ensuring the smooth running of the activity and improving user comfort. However, existing outdoor supply devices have some significant drawbacks, primarily including limited functionality, poor flexibility, and weak safety.

[0003] To address the existing problems, we propose a portable gas supply device. Utility Model Content

[0004] The purpose of this invention is to provide a portable gas supply device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A portable gas supply device, comprising

[0007] The adapter includes a first channel, a second channel, a third channel, and a fourth channel. The first channel is connected to the second and third channels, and the fourth channel can be connected to the second channel and the outside.

[0008] A gas cylinder connection mechanism is fixedly connected to the adapter. The gas cylinder connection mechanism includes an air inlet that communicates with the second channel. The number of gas cylinder connection mechanisms is greater than 1.

[0009] The gas output mechanism includes an outlet and a plugging mechanism. The outlet can communicate with the fourth channel. The plugging mechanism is located between the outlet and the fourth channel. The plugging mechanism and the fourth channel can be separated and sealed. The number of gas output mechanisms is greater than 1.

[0010] The first regulating mechanism includes a fifth channel and a sixth channel that are connected. The sixth channel is connected to the second channel. In the first state, the fifth channel is connected to the fourth channel. In the second state, the fifth channel is not connected to the fourth channel.

[0011] The second adjustment mechanism is detachably and sealed to the third channel.

[0012] Preferably, the number of second channels is the same as the number of gas output mechanisms.

[0013] Preferably, there are two gas output mechanisms and two second channels, located on both sides of the third channel.

[0014] Preferably, the supply device further includes a retractable base, which is connected to an adapter, and the relative position of the base and the adapter is variable.

[0015] Preferably, the base and the adapter are rotatably and lockably connected. The base includes a groove, and a portion of the adapter is recessed in the groove. The recessed part of the adapter is rotatably connected to both sides of the groove. When the angle between the base and the adapter is at its maximum, the adapter abuts against the bottom of the groove.

[0016] Preferably, the base is a manual or electric telescopic column.

[0017] Preferably, the adapter includes a through-hole.

[0018] Preferably, the through holes are located on both sides of the second adjustment mechanism.

[0019] Preferably, the gas cylinder connection mechanism also includes a cover, which can be engaged with the air inlet and is used to cover the air inlet.

[0020] Preferably, the gas output mechanism further includes a connector threadedly connected to the adapter. The connector includes an outlet and a first chamber. The first chamber, the outlet, and the fourth channel are interconnected. The inner diameter of the first chamber is larger than the inner diameter of the outlet.

[0021] The plugging mechanism is located in the first chamber. One end of the plugging mechanism can cooperate with the fourth channel, and the other end is located in the air outlet with a gap between it and the inner wall of the air outlet. The plugging mechanism is engaged with the air outlet.

[0022] Preferably, the blocking mechanism includes a first blocking component, a first spring, and a second blocking component. One end of the first blocking component can cooperate with the fourth channel; the end of the second blocking component away from the first blocking component is located inside the air outlet; the first spring is located between the first blocking component and the second blocking component, and abuts against both the first blocking component and the second blocking component.

[0023] Preferably, the gas output mechanism further includes a first handle, which is fixedly connected to the connecting body.

[0024] Preferably, the first adjustment mechanism includes a first adjustment member, the opening of the sixth channel is located at the bottom of the first adjustment member, and the opening of the fifth channel is located on one side of the first adjustment member.

[0025] Preferably, the adapter includes a second chamber, which communicates with a fourth channel, and the first adjusting member has a fifth and a sixth channel at one end that is embedded in and connected to the second chamber.

[0026] Preferably, the first adjustment mechanism includes a second handle, which is fixedly connected to the first adjustment member.

[0027] Preferably, the gas cylinder connection mechanism is located on one or both sides of the adapter.

[0028] Preferably, the number of gas cylinder connection mechanisms is ≥2.

[0029] Preferably, the second adjustment mechanism includes a second adjustment member, a third plug connected to the second adjustment member, a third adjustment member, a fourth plug, and a second spring;

[0030] The third adjustment component has a seventh channel and is fixedly connected to the adapter; the second adjustment component passes through the seventh channel and there is a gap between the two.

[0031] The second adjusting member has a stop block at one end near the third blocking member, and the second spring is located between the third adjusting member and the stop block, and the second spring is in a compressed state;

[0032] In the third state, the third plug and the third channel are sealed together, and the fourth plug and the seventh channel are sealed together; in the fourth state, the third plug and the third channel are no longer sealed together, and the fourth plug and the seventh channel are no longer sealed together.

[0033] Preferably, the adapter includes a third chamber that communicates with the third channel and the outside. The second adjustment part is disposed in the third chamber. The second spring and the third plug are disposed in the third chamber. In the third state, the fourth plug is located at the bottom of the third chamber.

[0034] Preferably, the second adjustment mechanism further includes a fixing member, which is annular. The second adjustment member includes an annular groove, in which the fixing member is embedded and the groove fits against the third chamber.

[0035] The second adjustment mechanism also includes a third handle, which is fixedly connected to the end of the second adjustment component away from the third plug.

[0036] This utility model is designed with an air inlet, a first channel, a second channel, a third channel, and a fourth channel. The air inlet and the second channel are connected. The first channel is connected to the second and third channels. The fourth channel is connected to the second channel and the outside. With the cooperation of the fifth and sixth channels, the gas can be circulated inside the supply device.

[0037] This utility model features a gas cylinder connection mechanism with more than one unit, a gas output mechanism with more than one unit, and an orderly design of all channels inside the adapter. This allows gas to enter the adapter and be discharged from at least one outlet, enabling one supply device to supply gas to multiple gas appliances. Furthermore, with the cooperation of the first channel, the second channel, the gas output mechanism, and the first regulating mechanism, it is also possible to supply gas from one gas cylinder to multiple gas appliances.

[0038] This utility model is designed with a gas output mechanism and a first adjustment mechanism, which realizes that the gas flow rate can be adjusted by rotating the first adjustment component during gas output to meet different user needs.

[0039] This utility model is designed with a second adjustment mechanism, which automatically releases pressure according to the pressure in the adapter during the gas supply process to avoid explosion due to excessive gas pressure; it can also be manually released after the supply device is used up, which improves the safety of the device.

[0040] This utility model is designed with a through hole, making it convenient for users to carry the device outdoors.

[0041] This utility model is designed with a base, which can be flexibly retracted and extended to suit different usage scenarios and improve the user experience.

[0042] Compared with the prior art, the advantages of this utility model are: this supply device is easy to carry, can be used in a variety of usage scenarios, and can supply multiple outdoor gas appliances with one gas cylinder. It has a high safety factor, high flexibility, and improves the user experience. Attached Figure Description

[0043] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0044] Figure 2 This is the left view of the present invention;

[0045] Figure 3 This is a cross-sectional structural diagram of the present invention;

[0046] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0047] Figure 5 for Figure 3 Enlarged view at point B in the middle;

[0048] Figure 6 for Figure 3 Enlarged view of point C.

[0049] In the picture:

[0050] 1-Adapter; 11-First channel; 12-Second channel; 13-Third channel; 14-Fourth channel; 15-Through hole; 16-Third chamber; 2-Gas cylinder connection mechanism; 21-Air inlet; 22-Cover; 31-Connector; 311-Air outlet; 312-First chamber; 32-Plug mechanism; 321-First plug; 322-Second plug; 323-First spring; 33-First handle; 41-First adjusting component; 411-Fifth channel; 412-Sixth channel; 42-Second handle; 51-Second adjusting component; 511-Stop; 52-Third plug; 53-Third adjusting component; 531-Seventh channel; 54-Fourth plug; 55-Second spring; 56-Fixing component; 57-Third handle; 6-Base. Detailed Implementation

[0051] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0052] Please see Figures 1 to 6 This utility model provides several technical solutions:

[0053] Example 1:

[0054] A portable gas supply device includes an adapter 1, a gas cylinder connection mechanism 2, a gas output mechanism, a first adjustment mechanism, a second adjustment mechanism, and a retractable base 6, as detailed below:

[0055] The adapter 1 includes a first channel 11, a second channel 12, a third channel 13, and a fourth channel 14. The first channel 11 is connected to the second channel 12 and the third channel 13. The fourth channel 14 is connected to the second channel 12 and the outside. The adapter 1 includes a through hole 15, which is located on both sides of the second adjustment mechanism.

[0056] The gas cylinder connection mechanism 2 is fixedly connected to the adapter 1. The gas cylinder connection mechanism 2 includes an air inlet 21, which is connected to the second channel 12. The gas cylinder connection mechanism 2 is located on both sides of the adapter 1, and there are 4 gas cylinder connection mechanisms 2. The gas cylinder connection mechanism 2 also includes a cover 22, which can be engaged with the air inlet 21 and is used to cover the air inlet 21.

[0057] The gas output mechanism includes an outlet 311 and a plug mechanism 32. The outlet 311 can communicate with the fourth channel 14. The plug mechanism 32 is located between the outlet 311 and the fourth channel 14. The plug mechanism 32 and the fourth channel 14 can be detachably and sealedly connected. There are two gas output mechanisms. There are two second channels 12, located on both sides of the third channel 13. The gas output mechanism also includes a connector 31 that is threadedly connected to the adapter 1. The connector 31 includes an outlet 311 and a first chamber 312. The first chamber 312, the outlet 311, and the fourth channel 14 can communicate with each other. The inner diameter of the first chamber 312 is larger than the inner diameter of the outlet 311. The plug mechanism 32 is partially located in the first chamber 312. One end of the plug mechanism 32 can cooperate with the fourth channel 14, and the other end is located in the outlet 311 with a gap between it and the inner wall of the outlet 311. The plug mechanism 32 is engaged with the outlet 311. The blocking mechanism 32 includes a first blocking member 321, a first spring 323, and a second blocking member 322. One end of the first blocking member 321 is compatible with the fourth channel 14. The end of the second blocking member 322 away from the first blocking member 321 is located inside the air outlet 311. The first spring 323 is located between the first blocking member 321 and the second blocking member 322, and abuts against both the first blocking member 321 and the second blocking member 322. The gas output mechanism also includes a first handle 33, which is fixedly connected to the connecting body 31.

[0058] The first adjustment mechanism includes a fifth channel 411 and a sixth channel 412 that are connected. The sixth channel 412 is connected to the second channel 12. In a first state, the fifth channel 411 is connected to the fourth channel 14; in a second state, the fifth channel 411 and the fourth channel 14 are not connected. The first adjustment mechanism includes a first adjustment member 41. The opening of the sixth channel 412 is located at the bottom of the first adjustment member 41, and the opening of the fifth channel 411 is located on one side of the first adjustment member 41. The first adjustment mechanism includes a second handle 42, which is fixedly connected to the first adjustment member 41. The adapter 1 includes a second chamber that is connected to the fourth channel 14. One end of the first adjustment member 41, which has the fifth channel 411 and the sixth channel 412, is embedded and connected to the second chamber.

[0059] The second adjustment mechanism is detachably and sealed to the third channel 13. The second adjustment mechanism includes a second adjustment member 51, a third plug 52 connected to the second adjustment member 51, a third adjustment member 53, a fourth plug 54, and a second spring 55; the third adjustment member 53 is fixedly connected to the adapter 1 and has a seventh channel 531, the second adjustment member 51 passes through the seventh channel 531 and there is a gap between the two; a stop block 511 is provided at one end of the second adjustment member 51 near the third plug, and the second spring 55 is located between the third adjustment member 53 and the stop block 511, and the second spring 55 is in a compressed state; in the third state, the third plug 52 and the third channel 13 are sealed together, and the fourth plug 54 and the seventh channel 531 are sealed together; in the fourth state, the third plug 52 and the third channel 13 are desealed, and the fourth plug 54 and the seventh channel 531 are desealed. The adapter 1 includes a third chamber 16 that communicates with the third channel 13 and the outside. A second adjusting member 51 is partially disposed within the third chamber 16. A second spring 55 and a third plug 52 are also disposed within the third chamber 16. In the third state, a fourth plug 54 is located at the bottom of the third chamber 16. The second adjusting mechanism also includes a fixing member 56, which is annular. The second adjusting member 51 includes an annular groove, into which the fixing member 56 is embedded, and the groove fits against the third chamber 16. The second adjusting mechanism also includes a third handle 57, which is fixedly connected to the end of the second adjusting member 51 away from the third plug 52.

[0060] The supply device also includes a retractable base 6, which is connected to the adapter 1. The relative position of the base 6 and the adapter 1 is variable. The base 6 and the adapter 1 are rotatably and lockably connected. The base 6 includes a groove, in which a portion of the adapter 1 is recessed. The recessed portion of the adapter 1 is rotatably connected to both sides of the groove. When the angle between the base 6 and the adapter 1 is at its maximum, the adapter 1 abuts against the bottom of the groove.

[0061] Example 2:

[0062] A portable gas supply device includes an adapter 1, a gas cylinder connection mechanism 2, a gas output mechanism, a first adjustment mechanism, a second adjustment mechanism, and a retractable base 6, as detailed below:

[0063] The adapter 1 includes a first channel 11, a second channel 12, a third channel 13, and a fourth channel 14. The first channel 11 is connected to the second channel 12 and the third channel 13. The fourth channel 14 is connected to the second channel 12 and the outside. The adapter 1 includes a through hole 15, which is located on both sides of the second adjustment mechanism.

[0064] The gas cylinder connection mechanism 2 is fixedly connected to the adapter 1. The gas cylinder connection mechanism 2 includes an air inlet 21, which communicates with the second channel 12. There are two gas cylinder connection mechanisms 2. The gas cylinder connection mechanism 2 also includes a cover 22, which can be engaged with the air inlet 21 to cover the air inlet 21. The gas cylinder connection mechanism 2 is located on one side of the adapter 1. There are two gas cylinder connection mechanisms 2.

[0065] The gas output mechanism includes an outlet 311 and a plug mechanism 32. The outlet 311 can communicate with the fourth channel 14. The plug mechanism 32 is located between the outlet 311 and the fourth channel 14. The plug mechanism 32 and the fourth channel 14 can be detachably and sealed. There are four gas output mechanisms. The number of second channels 12 is the same as that of the gas output mechanisms. The gas output mechanism also includes a connector 31 that is threadedly connected to the adapter 1. The connector 31 includes an outlet 311 and a first chamber 312. The first chamber 312, the outlet 311, and the fourth channel 14 can communicate with each other. The inner diameter of the first chamber 312 is larger than the inner diameter of the outlet 311. The plug mechanism 32 is partially located in the first chamber 312. One end of the plug mechanism 32 can cooperate with the fourth channel 14, and the other end is located in the outlet 311 with a gap between it and the inner wall of the outlet 311. The plug mechanism 32 is engaged with the outlet 311. The blocking mechanism 32 includes a first blocking member 321, a first spring 323, and a second blocking member 322. One end of the first blocking member 321 is compatible with the fourth channel 14. The end of the second blocking member 322 away from the first blocking member 321 is located inside the air outlet 311. The first spring 323 is located between the first blocking member 321 and the second blocking member 322, and abuts against both the first blocking member 321 and the second blocking member 322. The gas output mechanism also includes a first handle 33, which is fixedly connected to the connecting body 31.

[0066] The first adjustment mechanism includes a fifth channel 411 and a sixth channel 412 that are connected. The sixth channel 412 is connected to the second channel 12. In a first state, the fifth channel 411 is connected to the fourth channel 14; in a second state, the fifth channel 411 and the fourth channel 14 are not connected. The first adjustment mechanism includes a first adjustment member 41. The opening of the sixth channel 412 is located at the bottom of the first adjustment member 41, and the opening of the fifth channel 411 is located on one side of the first adjustment member 41. The first adjustment mechanism includes a second handle 42, which is fixedly connected to the first adjustment member 41. The adapter 1 includes a second chamber that is connected to the fourth channel 14. One end of the first adjustment member 41, which has the fifth channel 411 and the sixth channel 412, is embedded and connected to the second chamber.

[0067] The second adjustment mechanism is detachably and sealed to the third channel 13. The second adjustment mechanism includes a second adjustment member 51, a third plug 52 connected to the second adjustment member 51, a third adjustment member 53, a fourth plug 54, and a second spring 55. The third adjustment member 53 has a seventh channel 531 and is fixedly connected to the adapter 1. The second adjustment member 51 passes through the seventh channel 531 and there is a gap between them. A stop block 511 is provided at one end of the second adjustment member 51 near the third plug. The second spring 55 is located between the third adjustment member 53 and the stop block 511 and is in a compressed state. In the third state, the third plug 52 and the third channel 13 are sealed together, and the fourth plug 54 and the seventh channel 531 are sealed together. In the fourth state, the third plug 52 and the third channel 13 are desealed, and the fourth plug 54 and the seventh channel 531 are desealed. The adapter 1 includes a third chamber 16 that communicates with the third channel 13 and the outside. A second adjusting member 51 is partially disposed within the third chamber 16. A second spring 55 and a third plug 52 are also disposed within the third chamber 16. In the third state, a fourth plug 54 is located at the bottom of the third chamber 16. The second adjusting mechanism also includes a fixing member 56, which is annular. The second adjusting member 51 includes an annular groove, into which the fixing member 56 is embedded, and the groove fits against the third chamber 16. The second adjusting mechanism also includes a third handle 57, which is fixedly connected to the end of the second adjusting member 51 away from the third plug 52.

[0068] The supply device also includes a retractable base 6, which is connected to an adapter 1, and the relative position of the base 6 and the adapter 1 is variable. The base 6 is a manually or electrically telescopic column.

[0069] Working principle and usage process of this utility model:

[0070] Connect the gas appliance to the gas outlet 311 of this utility model using the pipe body, and fix the gas cylinder at the gas cylinder connection mechanism 2. The gas in the gas cylinder enters the adapter 1 from the gas inlet 21. Rotate the first handle 33 until the first plug 321 disengages from the fourth channel 14, and then rotate the second handle 42 until the fifth channel 411 and the fourth channel 14 are connected. At this time, the gas in the gas cylinder is discharged from the gas outlet 311 and supplies gas to the gas appliance.

[0071] When any gas outlet 311 is not connected to a gas appliance, rotate the corresponding first handle 33 to block the fourth channel 14 with the first plug 321, or rotate the corresponding second handle 42 until the fifth channel 411 and the fourth channel 14 are no longer connected.

[0072] When there is only one gas cylinder, but it is necessary to supply gas to more than one gas appliance, fix the gas cylinder to any gas cylinder connection mechanism 2, adjust each gas output mechanism corresponding to the gas appliance until the first block 321 is separated from the fourth channel 14, then adjust the first adjustment mechanism, and adjust the gas output flow rate by adjusting the degree of communication between the fourth channel 14 and the fifth channel 411. Once the gas flow rate meets the requirements, it can be ignited and used.

[0073] Additionally, if the internal air pressure of adapter 1 is too high, when it exceeds the limit pressure, the second adjusting member 51 and the third blocking member 52 will be lifted by the air pressure, and the gas will be discharged from the seventh channel 531, thereby playing a role in depressurization. After the device is used up, hold the third handle 57 to lift the second adjusting member 51, and the third blocking member 52 will also be lifted. The residual gas in adapter 1 will be discharged from the seventh channel 531. After the gas is discharged, release the handle, and the second adjusting member 51 will return to its original position, the third blocking member 52 will return to its original position and seal the third channel 13.

[0074] If the ground conditions are poor or the base 6 is needed for other reasons, simply open the base 6 and then put it away after use.

[0075] Although embodiments of the present invention have been shown and described (see the detailed description above), it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

[0076] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0077] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

Claims

1. A portable gas supply device, characterized in that: include: The adapter includes a first channel, a second channel, a third channel, and a fourth channel. The first channel is connected to the second channel and the third channel, and the fourth channel is connected to the second channel and the outside. A gas cylinder connection mechanism is fixedly connected to the adapter. The gas cylinder connection mechanism includes an air inlet, which communicates with the second channel. The number of gas cylinder connection mechanisms is greater than 1. A gas output mechanism includes a gas outlet and a plugging mechanism. The gas outlet can communicate with the fourth channel. The plugging mechanism is located between the gas outlet and the fourth channel. The plugging mechanism and the fourth channel are detachably and sealed together. The number of gas output mechanisms is greater than 1. The first adjustment mechanism includes a fifth channel and a sixth channel that are connected to each other. The sixth channel is connected to the second channel. In a first state, the fifth channel and the fourth channel are connected. In a second state, the fifth channel and the fourth channel are not connected. The second adjustment mechanism is detachably and sealed to the third channel.

2. The portable gas supply device according to claim 1, characterized in that: The supply device also includes a retractable base connected to the adapter, the relative position of the base and the adapter being variable.

3. A portable gas supply device according to claim 1, characterized in that: The adapter includes a through-hole.

4. A portable gas supply device according to claim 1, characterized in that: The gas cylinder connection mechanism also includes a cover, which can be engaged with the air inlet.

5. A portable gas supply device according to claim 1, characterized in that: The gas output mechanism further includes a connector threadedly connected to the adapter. The connector includes an outlet and a first chamber. The first chamber, the outlet, and the fourth channel are interconnected. The inner diameter of the first chamber is larger than the inner diameter of the outlet. The plugging mechanism is partially located in the first chamber. One end of the plugging mechanism can cooperate with the fourth channel, and the other end is located in the air outlet and has a gap with the inner wall of the air outlet. The plugging mechanism is engaged with the air outlet.

6. A portable gas supply device according to claim 1, characterized in that: The blocking mechanism includes a first blocking component, a first spring, and a second blocking component. One end of the first blocking component is compatible with the fourth channel. The end of the second blocking component away from the first blocking component is located inside the air outlet. The first spring is located between the first blocking component and the second blocking component and abuts against both the first and second blocking components.

7. A portable gas supply device according to claim 1, characterized in that: The first adjustment mechanism includes a first adjustment member, the opening of the sixth channel is located at the bottom of the first adjustment member, and the opening of the fifth channel is located on one side of the first adjustment member.

8. A portable gas supply device according to claim 1, characterized in that: The gas cylinder connection mechanism is located on one or both sides of the adapter.

9. A portable gas supply device according to claim 1, characterized in that: The second adjustment mechanism includes a second adjustment member, a third plug connected to the second adjustment member, a third adjustment member, a fourth plug, and a second spring; The third adjusting member has a seventh channel and is fixedly connected to the adapter; the second adjusting member passes through the seventh channel and there is a gap between them. The second adjusting member has a stop block at one end near the third blocking member, and the second spring is located between the third adjusting member and the stop block, and the second spring is in a compressed state; In the third state, the third plug and the third channel are in a sealing fit, and the fourth plug and the seventh channel are in a sealing fit. In the fourth state, the third plug and the third channel are no longer sealed together, and the fourth plug and the seventh channel are no longer sealed together.

10. A portable gas supply device according to claim 9, characterized in that: The adapter includes a third chamber that communicates with the third channel and the outside. The second adjustment component is located in the third chamber, and the second spring and the third plug are located in the third chamber.