Multi-gear control gas circuit valve, supply device and supply system

Abstract

The utility model discloses a multi-gear control gas circuit valve which comprises an exhaust control. The valve body is provided with a fluid channel and an exhaust channel, and the exhaust control is arranged in the exhaust channel; the valve element assembly is installed in the fluid channel so as to control the fluid channel to be switched between a communicating state and a sealing state, in the inflation mode, the valve element assembly controls the fluid channel to be in the communicating state and abuts against and opens the exhaust control piece, so that the exhaust channel is in the ventilation state, and meanwhile the valve element assembly is in the sealing state. The utility model further discloses a supply device applying the multi-gear control gas circuit valve and a supply system applying the supply device, and the purpose of timely exhausting air and residual gas under the condition of repeated filling of new fuel is achieved.

Description

Technical Field

[0001] The utility model relates to the field of valve bodies, and in particular to a multi-position controlled gas path valve, a replenishing device and a replenishing system. Background Art

[0002] In the existing filling technology, in order to ensure the safety of the cylinder during the filling and use process, a cylinder for filling gas with authorization announcement number CN207716079U published on August 10, 2018 is usually installed with an additional safety needle valve (or safety valve) on the existing cylinder, so that when the pressure inside the existing cylinder is too high, the gas in the cylinder can be discharged through the safety needle valve to balance the air pressure inside and outside the cylinder, thereby avoiding the risk of explosion of the existing cylinder.

[0003] However, it is inevitable that air is filled into the existing cylinders during repeated filling. In addition, there is inevitably unused gas left in the existing cylinders. Therefore, when adding new fuel to the existing cylinders, if the air and remaining gas in the existing cylinders are not removed, it is easy to cause the fuel to be impure due to mixing with other gases. The safety needle valve configured in the existing cylinders is only used to ensure the safety of the existing cylinders. When the gas in the existing cylinders is discharged to the outside under overpressure, the discharged gas will contain a large amount of newly filled fuel, which not only pollutes the environment, but also poses a safety hazard. Utility Model Content

[0004] In order to overcome at least one of the defects of the prior art described above, the utility model provides a multi-speed control gas circuit valve, a supply device and a supply system, so as to achieve the purpose of timely removing air and residual gas when repeatedly filling with new fuel.

[0005] The technical solution adopted by the utility model to solve the problem is:

[0006] A multi-position control gas circuit valve, comprising:

[0007] exhaust controls;

[0008] A valve body, wherein the valve body has a fluid channel and an exhaust channel, and the exhaust control is arranged in the exhaust channel;

[0009] A valve core assembly is installed inside the fluid channel to control the fluid channel to switch between a connected state and a sealed state. In the inflation mode, the valve core assembly controls the fluid channel to be in a connected state, and abuts against and opens the exhaust control to put the exhaust channel in a ventilation state.

[0010] In some embodiments of the utility model, the valve core assembly has a first thrust stroke and a second thrust stroke, the first thrust stroke is a stroke of the movable ejector pin of the valve core assembly moving to a side close to the exhaust control, and the first thrust stroke is used to put the fluid channel in the connected state;

[0011] The second pushing stroke is a stroke for moving along the extension direction of the first pushing stroke and abutting to open the exhaust control. The second pushing stroke is used for keeping the fluid channel in the connected state and putting the exhaust channel in a ventilated state.

[0012] In some embodiments of the present invention, the exhaust control includes a movable seal and a valve seat assembly, the movable seal can be reciprocatingly slidably fitted inside the valve seat assembly, and in the inflation mode, the valve core assembly abuts against the movable seal to connect the valve seat assembly to the exhaust channel, and the valve seat assembly is arranged at the end of the exhaust channel and is detachably connected to the valve body.

[0013] In some embodiments of the present invention, the valve seat assembly includes an exhaust seat body and an exhaust reset component, an exhaust valve stem is inserted into the exhaust seat body, the exhaust valve stem is the movable sealing component, the exhaust seat body is fixedly connected to the end of the exhaust channel, and the exhaust reset component is used to automatically reset the exhaust valve stem when the force is removed.

[0014] In some embodiments of the utility model, the valve seat assembly includes an exhaust connection seat, an airtight core body inserted inside the exhaust connection seat, and a core spring reset member arranged inside the airtight core body, the airtight core body is installed with a movable core rod, the movable core rod is the movable sealing member, and the core spring reset member is sleeved on the movable core rod so that the movable core rod can automatically reset when the force is removed.

[0015] In some embodiments of the present invention, a sealing ring is disposed at the connecting intersection between the fluid channel and the exhaust channel, and the movable sealing member is inserted into the sealing ring.

[0016] In some embodiments of the utility model, the multi-position control gas circuit valve further includes a multi-position switch, the multi-position switch is installed on the valve body, and the multi-position switch has a first gear mode, a second gear mode, and a third gear mode;

[0017] In the first gear mode, the switch top rod of the multi-gear switch is separated from the valve core assembly, and the fluid channel is in the sealed state;

[0018] In the second gear mode, the switch top rod of the multi-gear switch abuts against the valve core assembly, and makes the fluid channel in the connected state;

[0019] In the gear-position three mode, the switch top rod of the multi-position switch abuts against the valve core assembly and keeps the fluid passage in a connected state, so that the exhaust passage is in a ventilated state.

[0020] In some embodiments of the utility model, the multi-position switch includes a switch toggle member and a switch connecting seat, the switch connecting seat is provided with a switch air guide cavity capable of connecting to the fluid channel, the switch toggle member is hinged to the switch top rod, and the switch top rod is slidably disposed in the switch air guide cavity.

[0021] In some embodiments of the present utility model, the switch toggle member is provided with a first moving contact end, a second moving contact end and a third moving contact end;

[0022] The switch toggle member is movably switched to the first moving contact end, and the multi-position switch is in the first position mode; or,

[0023] The switch toggle member is movably switched to the second moving contact end, and the multi-position switch is in the second position mode; or,

[0024] The switch toggle member is movably switched to the third moving contact end, and the multi-position switch is in the third position mode.

[0025] In some embodiments of the utility model, the multi-speed control air circuit valve also includes an over-temperature protection component, which is arranged in the fluid channel, and the over-temperature protection component is melted or deformed by heat, so that the valve core assembly controls the fluid channel to be in a sealed state.

[0026] In some embodiments of the present invention, the over-temperature protection member is sleeved on the end of the movable ejector pin of the valve core assembly.

[0027] In some embodiments of the utility model, the multi-speed control air circuit valve also includes a pressure relief adjusting component, and a pressure relief channel is also provided on the valve body. The pressure relief adjusting component is installed in the pressure relief channel, and the pressure relief adjusting component is used to guide and discharge fluid fuel and heat along the pressure relief channel under high temperature conditions.

[0028] In some embodiments of the present invention, the pressure relief regulating component includes a heat exhaust reset component, an exhaust fixing seat provided with a heat exhaust port, and a valve component for closing the heat exhaust port, both ends of the heat exhaust reset component abut against the valve component and the valve body, and the heat exhaust reset component, the exhaust fixing seat and the valve component are all installed in the pressure relief channel.

[0029] In some embodiments of the present utility model, the pressure relief adjusting component includes a pressure relief reset component, a pressure relief valve stem, and a pressure relief connecting seat, the two ends of the pressure relief reset component are respectively abutted against the pressure relief valve stem and the pressure relief connecting seat, the end of the pressure relief channel is provided with a pressure relief chamber connected to the outside of the valve body, the pressure relief chamber is provided with a through opening connected to the pressure relief channel, the pressure relief connecting seat is fixed to the pressure relief chamber, and the pressure relief reset component is used to reset the pressure relief valve stem so that the pressure relief valve stem seals the through opening.

[0030] In some embodiments of the utility model, a rotating handle is provided on the pressure relief valve stem, and a guide protrusion is provided on the pressure relief connecting seat. The rotating handle is deflected so that the rotating handle can slide along the guide surface of the guide protrusion and move horizontally along its own central axis.

[0031] In some embodiments of the present invention, the pressure relief channel is connected to the fluid channel, or the pressure relief channel is connected to the exhaust channel.

[0032] In some embodiments of the present utility model, the fluid channel includes a fluid main channel, a fluid output pipe, and a fluid connecting pipe;

[0033] The main fluid channel is connected to the fluid output pipe through the fluid connecting pipe, and the main fluid channel extends along the central axis of the valve body;

[0034] And / or, the main fluid channel is directly connected to the fluid output pipe, and the fluid output pipe extends obliquely to the center axis direction of the valve body.

[0035] In some embodiments of the present utility model, the exhaust passage includes an exhaust main passage, an exhaust output pipe and an exhaust input pipe;

[0036] The exhaust inlet pipe is connected to the exhaust outlet pipe through the exhaust main channel, and the exhaust main channel extends in a direction parallel to the central axis of the valve body;

[0037] And / or, the exhaust passage extends obliquely to the central axis direction of the valve body.

[0038] The utility model also discloses a replenishing device, comprising:

[0039] The above-mentioned multi-position control gas circuit valve;

[0040] A storage container body, wherein the multi-speed control gas path valve is fixedly connected to the storage container body.

[0041] The utility model also discloses a supply system, comprising the supply device mentioned above.

[0042] In summary, the utility model provides a multi-position control gas circuit valve, a replenishing device and a replenishing system, which have the following technical effects:

[0043] The exhaust control and valve core assembly are very cleverly coordinated to enable the multi-position controlled gas circuit valve to automatically switch its use state when connected to different connectors (such as filling spray guns and pressure reducing valves for energy equipment) without manual switching. This effectively avoids the problem of impure fuel caused by omitting the step of exhausting air and residual gas, and achieves the purpose of timely and automatic exhaust of air and residual gas.

[0044] In addition, it not only simplifies the structure of the existing steel cylinder, but also helps to improve the strength and stability of the steel cylinder, thereby improving the safety of the steel cylinder, and avoids the safety hazard of gas leakage caused by multiple valve bodies installed in the steel cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] Figure 1 It is a partial structural diagram of a supply system of the utility model;

[0046] Figure 2 It is a schematic diagram of the assembly of a replenishment system of the utility model;

[0047] Figure 3 This is a first structural schematic diagram of a multi-speed control gas circuit valve according to the first embodiment of the utility model;

[0048] Figure 4 A second structural schematic diagram of the multi-speed control gas circuit valve of the first embodiment of the utility model;

[0049] Figure 5 It is a third structural schematic diagram of the multi-shift control gas circuit valve of the second embodiment of the utility model;

[0050] Figure 6 This is a first state assembly diagram of the valve body and the pressure relief regulating member in the utility model;

[0051] Figure 7 This is a second state assembly diagram of the valve body and the pressure relief regulating member in the utility model;

[0052] Figure 8 It is a structural schematic diagram of the pressure relief regulating member in the utility model;

[0053] Fig. 9 This is a schematic diagram of the structure of the multi-position switch in the utility model;

[0054] Fig.10 This is a schematic diagram of the first state of the multi-position switch in the utility model;

[0055] Fig.11This is a schematic diagram of the second state of the multi-position switch in the utility model;

[0056] Fig.12 This is a schematic diagram of the third state of the multi-position switch in the utility model;

[0057] Fig.13 This is a first assembly structure diagram of the valve core assembly in the utility model;

[0058] Fig.14 This is a second assembly structure diagram of the valve core assembly in the utility model;

[0059] Fig.15 It is a schematic diagram of the structure of the valve core of the exhaust control unit in the utility model.

[0060] Icons: 1- multi-speed control gas circuit valve, 11- exhaust control, 111a- exhaust valve stem, 112a- exhaust seat body, 113a- closing part, 114a- exhaust reset part, 115a- reset protrusion, 111b- valve core, 1111- movable core rod, 1112- core spring reset part, 1113- airtight core body, 1114- core internal channel, 1115- core seat seal, 112b- exhaust connection Seat, 113b-air guide channel, 12-valve body, 121-fluid channel, 122-exhaust channel, 123-fluid input port, 124-fluid output port, 125-exhaust output port, 126-exhaust input port, 127-pressure relief channel, 13-valve core assembly, 131-valve core plug body, 132-movable ejector pin, 133-elastic ejector pin, 134-plug body channel, 135-shielding portion, 2- Filling spray gun, 21-needle ejector, 22-gun body, 23-trigger, 3-delivery pipeline, 4-storage container body, 41-container opening end, 5-valve core ejector, 6-overtemperature protection component, 7-pressure relief adjustment component, 71a-heat exhaust reset component, 72a-exhaust fixing seat, 73a-valve component, 71b-pressure relief reset component, 72b-pressure relief connecting seat, 73b-pressure relief valve stem, 74-pressure relief chamber, 75-through port , 76-rotating handle, 77-guide protrusion, 78-guide surface, 79-pressure relief hole, 70-anti-drop limit part, 8-sealing ring, 9-multi-speed switch, 91-switch top rod, 92-switch toggle member, 921-first moving contact end, 922-second moving contact end, 923-third moving contact end, 93-switch connecting seat, 94-switch air guide cavity, 95-switch external interface, 96-switch seal, 97-sealing part. DETAILED DESCRIPTION

[0061] For better understanding and implementation, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0062] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc. indicating directions or positional relationships are based on the directions or positional relationships 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 direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0063] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0064] First embodiment

[0065] Please refer to Figure 1 As shown, the utility model discloses a replenishing system, including a replenishing device and a gas-liquid supply device. The gas-liquid supply device here can be selected as a supply device for liquid fuel or gas fuel, and can also be selected as a storage tank for liquid fuel or gas fuel. The gas-liquid supply device is connected to the replenishing device through a filling connector, so that the gas-liquid supply device can transport and fill liquid fuel or gas fuel (hereinafter referred to as fluid fuel) to the replenishing device for storage.

[0066] It should be added that if Figure 1 As shown, the above-mentioned filling connection part includes a filling spray gun 2 and a delivery pipe 3 connected to the filling spray gun 2, and the other end of the delivery pipe 3 is connected to the output end of the gas-liquid supply device. Among them, the filling spray gun 2 belongs to the mature existing technology in this field, and it includes a gun needle push rod 21, a gun body 22 and a trigger 23. The trigger 23 is hingedly connected to the gun body 22, and the trigger 23 is transmission-connected to the gun needle push rod 21. When the delivery pipe 3 is connected to the filling spray gun 2, the fluid fuel will be delivered to the gun body 22 through the delivery pipe 3, and output from the gun mouth of the gun body 22 to the supply device.

[0067] In this embodiment, please refer to Figure 1 As shown, the replenishing device includes a storage container body 4, which can be made of any material, such as metal material, composite material or other materials suitable for making bottles and cans. In addition, the storage container body 4 can be made according to the required specifications and meet the applicable refillable design standards.

[0068] As the core method of this embodiment, please refer to Figures 1 to 4As shown, the above-mentioned replenishing device also includes a multi-speed control gas circuit valve 1 fixedly connected to the storage container body 4, and the multi-speed control gas circuit valve 1 includes an exhaust control component 11, a valve body 12, and a valve core assembly 13. The valve body 12 has a fluid channel 121 and an exhaust channel 122. The fluid channel 121 is used to transport fluid fuel, and the exhaust channel 122 is used to remove air and residual gas in the transport storage container body 4. The fluid channel 121 and the exhaust channel 122 are independently arranged, so that the transmission of fluid fuel does not interfere with the transmission of air and residual gas, thereby avoiding the problem of part of the fluid fuel flowing to the exhaust channel 122 and causing waste.

[0069] In this way, the inflation principle of the replenishing device is that when the fluid fuel is liquid fuel, the fluid fuel is transported from the fluid channel 121 of the valve body 12 and flows into the storage container body 4, and the fluid fuel will occupy the storage space inside the storage container body 4 and squeeze the air and remaining gas remaining in the storage container body 4 toward the inside of the exhaust channel 122, so that the air and remaining gas inside the storage container body 4 are output to the outside of the storage container body 4 along the exhaust channel 122.

[0070] It should be noted that when the fluid fuel is a gas fuel, generally, the gas density of the gas fuel is greater than the gas density of the air, and the fluid fuel is transported from the fluid channel 121 of the valve body 12 to the storage container body 4, and the fluid fuel will sink to the bottom of the storage space of the storage container body 4, and the air and the remaining gas with a small gas density will be squeezed up and output to the outside of the storage container body 4 along the exhaust channel 122. Preferably, the gas fuel is usually compressed into a liquid state.

[0071] It should also be noted that when the fluid fuel fills the storage space of the entire storage container body 4 (if the fluid fuel is a gas fuel, the gas fuel is compressed into a liquid in the storage space), the exhaust passage 122 will discharge white gas (i.e., the fluid fuel in an atomized state). In this way, this phenomenon is usually used as a basis for judging whether it is full.

[0072] Understandable, please combine Figure 3 and Figure 4 As shown, the fluid channel 121 is preferably connected to the exhaust channel 122. The exhaust control 11 is disposed in the exhaust channel 122. Specifically, the exhaust control 11 is fixedly connected to the exhaust input port 126 of the exhaust channel 122, and the movable end of the exhaust control 11 can be inserted into the fluid channel 121, so that the fluid fuel does not flow into the exhaust channel 122, and the air and the residual gas are prevented from flowing back into the fluid channel 121. In order to improve the air tightness between the movable end of the exhaust control 11 and the fluid channel 121, a sealing ring can be further configured between the movable end of the exhaust control 11 and the inner side wall of the fluid channel 121.

[0073] It should be noted that if Figure 3 As shown, the above-mentioned fluid channel 121 includes a fluid main channel, a fluid output pipe, and a fluid connecting pipe. The fluid main channel is connected to the fluid output pipe through the fluid connecting pipe. The fluid main channel extends along the central axis direction of the valve body 12, and the end of the fluid main channel passes through the valve body 12 to form a fluid input port 123. The fluid input port 123 and the exhaust input port 126 are preferably respectively arranged on two opposite sides of the valve body 12. The fluid input port 123 is used to connect the pressure reducing valve of the filling spray gun 2 or energy equipment (such as a gas stove, etc.).

[0074] Alternatively, in addition to the structure of the fluid channel 121, Figure 4 As shown, the fluid channel 121 includes a main fluid channel and a fluid output pipe, the main fluid channel is directly connected to the fluid output pipe, and the fluid output pipe extends obliquely to the central axis direction of the valve body 12, and the fluid output pipe penetrates the valve body 12 to form a fluid output port 124, so that the fluid fuel is sprayed from the filling spray gun 2 to the main fluid channel of the fluid channel 121. At this time, the fluid fuel will be sequentially released along the main fluid channel, the fluid connecting pipe, the fluid output pipe, and from the fluid output port 124. Since the valve body 12 is fixedly connected to the container opening end 41 of the storage container body 4, the fluid fuel will be filled into the storage container body 4.

[0075] It is understandable that the unexpected effect of the tilted arrangement of the fluid output pipe is that it can not only reduce the installation and use of fasteners, such as the first sealing nut used to block the first process opening formed on the side wall of the fluid output pipe for processing the fluid connecting pipe. In addition, it can also reduce the process steps, such as the drilling process for processing the fluid connecting pipe and the tapping process for the first process opening. In this way, the cost of accessories and the process cost can be reduced, thereby greatly reducing the production cost of the valve body 12 and the entire supply device.

[0076] It should also be noted that if Figure 3 As shown, the exhaust channel 122 may be extended in a Z-shaped manner. That is, the exhaust channel 122 includes an exhaust main channel, an exhaust output pipe and an exhaust input pipe, the exhaust input pipe is connected to the exhaust output pipe through the exhaust main channel, the exhaust main channel extends in a direction parallel to the central axis of the valve body 12, the end of the exhaust output pipe penetrates the valve body 12 to form an exhaust output port 125, and the end of the exhaust input pipe penetrates the valve body 12 to form the above-mentioned exhaust input port 126, when the fluid fuel is filled in the storage container body 4, the air and residual gas in the storage container body 4 will flow from the exhaust input port 126 to the exhaust channel 122, and be discharged from the exhaust output port 125.

[0077] Alternatively, in addition to the exhaust passage 122 being arranged in a Z-shaped configuration, Figure 4 As shown, the exhaust channel 122 can also optionally extend obliquely to the central axis direction of the valve body 12, so that the two ends of the exhaust channel 122 respectively pass through the valve body 12 to form an exhaust output port 125 and an exhaust input port 126, which can also guide the air and residual gas inside the storage container body 4 to the outside of the storage container body 4.

[0078] It is understandable that the unexpected effect of the inclined arrangement of the exhaust passage 122 is that it can not only reduce the installation and use of fasteners, such as the second sealing nut for blocking the second process opening formed on the side wall of the exhaust main passage for processing the exhaust inlet pipe. In addition, it can also reduce the process steps, such as the tapping process for the second process opening. In this way, the cost of accessories and the process cost can be further reduced, thereby further reducing the production cost of the valve body 12 and the replenishing device as a whole.

[0079] For further details, please refer to Figure 2 , Fig.13 and Fig.14 As shown, the valve core assembly 13 is installed inside the fluid channel 121, wherein the valve core assembly 13 includes a valve core plug body 131 and a movable ejector pin 132, the valve core plug body 131 is arranged in the fluid channel 121, the valve core plug body 131 is provided with an inner plug channel 134 which can communicate with the fluid channel 121, the movable ejector pin 132 is penetrated in the inner plug channel 134, and a gap is configured between the movable ejector pin 132 and the peripheral side wall of the inner plug channel 134. The lower end of the movable ejector pin 132 is provided with a shielding portion 135 which can close the air inlet end of the inner plug channel 134, and the movable ejector pin 132 can move relative to the valve core plug body 131 under the action of force, thereby driving the shielding portion 135 to move relative to the air inlet end of the inner plug channel 134.

[0080] In this case, when the multi-position control gas circuit valve 1 of the supply device is connected to the pressure reducing valve of the energy equipment, please refer to Fig.13 and Fig.14 As shown, the valve core push rod 5 of the pressure reducing valve abuts against the movable push pin 132 of the valve core assembly 13, so that the blocking portion 135 of the movable push pin 132 is away from the air inlet end of the plug body inner channel 134, and the fluid channel 121 is in a connected state. The fluid fuel inside the storage container body 4 will flow through the fluid channel 121 and the plug body inner channel 134 and be transported to the energy equipment to supply the energy equipment for use, and the replenishing device is in the use mode.

[0081] Preferably, please combine Fig.13 and Fig.14As shown, the movable ejector pin 132 of the valve core assembly 13 is sleeved with an ejector pin elastic member 133, which is used to reset the movable ejector pin 132, that is, the movable ejector pin 132 will produce elastic deformation under the action of force, and the ejector pin elastic member 133 will be in a compressed state. When the force applied to the movable ejector pin 132 is removed, the ejector pin elastic member 133 will produce deformation recovery and drive the movable ejector pin 132 to reset, then the shielding portion 135 of the movable ejector pin 132 will re-close the air inlet end of the channel 134 in the plug body, and the fluid channel 121 will be in a sealed state, so that the fluid fuel inside the storage container body 4 will not leak to the outside of the storage container body 4.

[0082] Generally, the length dimension of the valve core push rod 5 of the existing pressure reducing valve is smaller than the length dimension of the gun needle push rod 21 of the filling spray gun 2. When the multi-speed control gas path valve 1 of the supply device is connected to the filling spray gun 2, that is, the filling spray gun 2 is plugged into the fluid input port 123 of the valve body 12, the gun needle push rod 21 of the filling spray gun 2 abuts against the movable push pin 132 of the valve core assembly 13, so that the fluid channel 121 is in a connected state, and the fluid fuel supplied by the filling spray gun 2 can be stably filled into the storage container body 4. At the same time, the gun needle push rod 21 of the filling spray gun 2 will also push the movable push pin 132 to abut against the active end of the exhaust control 11, thereby opening the exhaust control 11 and putting the exhaust channel 122 in a ventilated state. At this time, the air and residual gas inside the storage container body 4 can be stably discharged from the storage container body 4, and the supply device is in the charging mode.

[0083] In other words, the valve core assembly 13 has a first push stroke and a second push stroke, wherein the first push stroke is the stroke of the movable ejector pin 132 of the valve core assembly 13 moving to the side close to the exhaust control 11. At this time, the movable ejector pin 132 does not contact the exhaust control 11. The first push stroke is used to make the fluid channel 121 in a connected state. Therefore, the pressure reducing valve is plugged into the fluid input port 123 of the valve body 12, and the valve core ejector rod 5 of the pressure reducing valve drives the movable ejector pin 132 of the valve core assembly 13 to complete the movement of the first push stroke, then the blocking portion 135 of the movable ejector pin 132 is away from the air inlet end of the channel 134 in the plug body, and the fluid channel 121 is in a connected state, thereby achieving the purpose of the replenishment device being in the use mode.

[0084] The second push stroke is a stroke for moving along the extension direction of the first push stroke and abutting the exhaust control 11 to open. The second push stroke is used to keep the fluid channel 121 in a connected state and put the exhaust channel 122 in a ventilated state. That is, the filling spray gun 2 is plugged into the fluid input port 123 of the valve body 12, and the movable ejector pin 132 of the valve core assembly 13 moves along the path of the first push stroke and exceeds the first push stroke, so that the movable ejector pin 132 can abut and push the movable end of the exhaust control 11, then the shielding portion 135 of the movable ejector pin 132 is away from the air inlet end of the channel 134 in the plug body, and the fluid channel 121 is in a connected state. At the same time, due to the opening of the exhaust control 11, the exhaust channel 122 is in a ventilated state, and the purpose of the supply device being in the inflation mode is achieved.

[0085] From the above, it can be seen that the valve core assembly 13 can not only well control the fluid channel 121 of the valve body 12 to switch freely between the connected state and the sealed state, that is, the multi-speed control air circuit valve 1 can freely switch the use mode and the closed state according to the disassembly and assembly of the pressure reducing valve and the valve body 12.

[0086] Unexpectedly, the multi-position control gas circuit valve 1 can also change the movable stroke of the movable ejector pin 132 in the valve core assembly 13 according to the connection of the valve body 12 to different connectors (filling spray gun 2, pressure reducing valve), that is, in the use mode of the multi-position control gas circuit valve 1, the movable ejector pin 132 only moves the distance of the first stroke, at this time, the exhaust control 11 is in a closed state, ensuring that the fluid fuel will not flow out of the storage container body 4 through the exhaust control 11. In the inflation mode, the movable ejector pin 132 will move the distance of the second stroke, and the exhaust control 11 and the valve core assembly 13 will form a linkage, without manual switching, effectively avoiding the problem of missing the step of exhausting air and residual gas in the inflation mode, resulting in the impurity of the fluid fuel stored in the storage container body 4, and achieving the purpose of timely and automatic removal of air and residual gas.

[0087] As the preferred method of this embodiment, please refer to Figure 2 , Figure 3 and Figure 4 As shown, the above-mentioned exhaust control 11 includes a movable seal and a valve seat assembly, wherein the end of the movable seal is inserted into the connecting intersection of the fluid channel 121 and the exhaust channel 122, thereby sealing the connecting intersection of the fluid channel 121 and the exhaust channel 122, and the movable seal can reciprocate and slide to fit inside the valve seat assembly.

[0088] At the same time, in the inflation mode, the movable ejector pin 132 of the valve core assembly 13 abuts against the movable seal, so that the valve seat assembly is connected to the exhaust channel 122. Specifically, the valve seat assembly is provided with an inner channel of the valve seat, the movable seal is slidably arranged inside the inner channel of the valve seat, and a ventilation gap is formed between the movable seal and the inner channel of the valve seat, so that the ventilation gap of the valve seat assembly can be connected to the exhaust channel 122, so that air and residual gas can flow through the ventilation gap and flow to the inside of the exhaust channel 122. Further, the valve seat assembly is arranged at the end of the exhaust channel 122, and is detachably connected to the valve body.

[0089] It should be noted that, in order to ensure that the movable seal can well seal the connecting intersection of the fluid channel 121 and the exhaust channel 122, a sealing ring 8 is arranged on the connecting intersection of the sealed fluid channel 121 and the exhaust channel 122, and the movable seal is plugged into the sealing ring 8, thereby ensuring the sealing between the movable seal and the connecting intersection. It can be understood that during the reciprocating sliding process of the movable seal, the movable seal maintains relative movement with the sealing ring 8, and the movable seal does not separate from the sealing ring 8, thereby preventing the fluid fuel from flowing into the exhaust channel 122 during the reciprocating sliding process of the movable seal, or preventing the air and residual gas from flowing back into the fluid channel 121 during the reciprocating sliding process of the movable seal.

[0090] As one of the preferred methods of this embodiment, please refer to Figure 2 and Figure 3 As shown, the above-mentioned valve seat assembly includes an exhaust seat body 112a and an exhaust reset member 114a, and an exhaust valve stem 111a is inserted in the exhaust seat body 112a. The exhaust valve stem 111a is the movable sealing member of the exhaust control 11, that is, an exhaust inner cavity and a through hole connected to the exhaust inner cavity are provided on the exhaust seat body 112a, and the exhaust inner cavity is connected to the exhaust channel 122. The exhaust valve stem 111a passes through the through hole and extends to the interior of the exhaust inner cavity, wherein the diameter of the exhaust valve stem 111a is smaller than the aperture size of the through hole, and there is a spacing between the exhaust valve stem 111a and the through hole to form the above-mentioned ventilation gap, so that the air and residual gas will flow through the ventilation gap and the exhaust inner cavity in sequence, and flow to the interior of the exhaust channel 122.

[0091] Furthermore, a closing portion 113a capable of closing the through hole is provided on the exhaust valve stem 111a. In the inflation mode, when the movable ejector pin 132 of the valve core assembly 13 abuts against the exhaust valve stem 111a, the exhaust valve stem 111a and the exhaust seat body 112a move relative to each other, and the closing portion 113a moves away from the through hole driven by the exhaust valve stem 111a, and the air and residual gas will flow through the ventilation gap and the exhaust inner cavity in sequence, and flow into the exhaust channel 122. The exhaust seat body 112a is fixedly connected to the end of the exhaust channel 122. Preferably, the exhaust seat body 112a is threadedly connected to the end of the exhaust channel 122, so that the exhaust control 11 can be detachably assembled on the valve body 12.

[0092] Further, please refer to Figure 2 As shown, the above-mentioned exhaust reset member 114a is used for the exhaust valve stem 111a to automatically reset when the force is removed. Specifically, the exhaust reset member 114a is preferably a spring, and the exhaust valve stem 111a is provided with a reset protrusion 115a. There can be one reset protrusion 115a, which extends along the circumferential direction of the exhaust valve stem 111a. There can also be multiple reset protrusions 115a, and multiple reset protrusions 115a are arranged along the circumferential direction of the exhaust valve stem 111a. The two ends of the exhaust reset member 114a respectively abut against the reset protrusion 115a and the exhaust seat body 112a.

[0093] In this way, when the movable ejector pin 132 of the valve core assembly 13 abuts against the exhaust valve stem 111a, the exhaust reset member 114a will produce elastic deformation and be in a compressed state. When the force of the movable ejector pin 132 of the valve core assembly 13 abutting against the exhaust valve stem 111a is removed, the exhaust reset member 114a will produce deformation recovery, driving the exhaust valve stem 111a to reset, and the closing portion 113a on the exhaust valve stem 111a will close the through hole and close the exhaust control 11, thereby preventing the fluid fuel from leaking to the outside of the storage container body 4 through the exhaust control 11.

[0094] As another preferred method of this embodiment, please refer to Figure 4 and Fig.15 As shown, the valve seat assembly includes an exhaust connection seat 112b, an airtight core body 1113 inserted in the exhaust connection seat 112b, and a core spring return member 1112 disposed in the airtight core body 1113. Specifically, an air guide channel 113b is provided on the exhaust connection seat 112b, and the airtight core body 1113 is inserted and fixed in the air guide channel 113b. In addition, a movable core rod 1111 is installed on the airtight core body 1113, and the movable core rod 1111 is a movable seal of the exhaust control 11.

[0095] Specifically, the movable core rod 1111, the core spring return member 1112 and the airtight core body 1113 are combined into the valve core 111b. The valve core 111b belongs to the mature existing technology in this field, that is, it belongs to the existing standard spare parts in this field. Then, the valve seat assembly only needs to be processed and manufactured into the exhaust connection seat 112b, thereby greatly reducing the processing difficulty and processing cost of the valve seat assembly. During installation, it is only necessary to plug and fix the valve core 111b in the air guide channel 113b of the exhaust connection seat 112b. Therefore, the assembly accuracy and difficulty will be reduced, and at the same time, it will also facilitate subsequent disassembly, replacement and maintenance.

[0096] Preferably, please refer to Fig.15 As shown, the airtight core body 1113 is provided with an inner core channel 1114 which can be connected to the air guide channel 113b, and the movable core rod 1111 extends along the central axis direction of the air guide channel 113b and is penetrated in the inner core channel 1114, and there is a spacing between the movable core rod 1111 and the peripheral side wall of the inner core channel 1114 to configure the above-mentioned ventilation gap, then the movable ejector pin 132 of the valve core assembly 13 abuts against the movable core rod 1111 of the valve core 111b, so that the core seat seal 1115 on the movable core rod 1111 is away from the air inlet end of the inner core channel 1114, the inner core channel 1114 / ventilation gap is connected to the air guide channel 113b, and the air and residual gas inside the storage container body 4 will flow through the air guide channel 113b and the inner core channel 1114 / ventilation gap, and be transported to the exhaust channel 122.

[0097] Further, please refer to Fig.15 As shown, the lower end of the movable core rod 1111 is provided with a core seat seal 1115 capable of closing the air inlet end of the core inner channel 1114. When the movable ejector pin 132 of the valve core assembly 13 abuts against the movable core rod 1111 of the valve core 111b, the movable core rod 1111 can move relative to the airtight core body 1113 under the action of force, thereby driving the core seat seal 1115 to move away from the air inlet end of the core inner channel 1114. The air and residual gas will flow through the air guide channel 113b and the core inner channel 1114 / ventilation gap in sequence, and flow into the exhaust channel 122.

[0098] Preferably, please refer to Fig.15As shown, the core spring reset component 1112 is sleeved on the movable core rod 1111, and the core spring reset component 1112 is used to reset the movable core rod 1111, that is, when the movable core rod 1111 is subjected to force, the core spring reset component 1112 will produce elastic deformation and be in a compressed state. When the force of the movable core rod 1111 is removed, the core spring reset component 1112 will recover its deformation and drive the movable core rod 1111 to reset. Then, the core seat seal 1115 of the movable core rod 1111 will close the air inlet end of the core body channel 1114. At this time, the air guide channel 113b is in a sealed state, and the fluid fuel inside the storage container body 4 will not leak to the outside.

[0099] As a preferred method of this embodiment, please refer to Figure 3 , Figure 4 and Figure 5 As shown, the multi-speed control air circuit valve 1 also includes a pressure relief regulating member 7. A pressure relief channel 127 is also provided on the valve body 12. The pressure relief regulating member 7 is installed in the pressure relief channel 127. The pressure relief regulating member 7 is used to guide and discharge the fluid fuel and heat along the pressure relief channel 127 under high temperature conditions, so as to ensure that the supply device can discharge part of the fluid fuel in the storage container body 4 in time under high temperature conditions, thereby reducing the pressure inside the storage container body 4.

[0100] As a further preferred method of this embodiment, please refer to Figure 3 and Figure 4 As shown, the pressure relief regulating member 7 includes a heat exhaust reset member 71a, an exhaust fixing seat 72a provided with a heat exhaust port, and a valve member 73a for closing the heat exhaust port. The heat exhaust reset member 71a here is preferably a spring, and the valve member 73a is preferably a valve ball. The ball radius of the valve member 73a is larger than the inner diameter of the heat exhaust port and smaller than the cross-sectional radius of the pressure relief channel 127. Both ends of the heat exhaust reset member 71a abut against the valve member 73a and the valve body 12. The heat exhaust reset member 71a, the exhaust fixing seat 72a and the valve member 73a are all installed in the pressure relief channel 127.

[0101] Specifically, an internal thread section is provided on the inner wall of the pressure relief channel 127, and an external thread section is provided on the outer wall of the exhaust fixing seat 72a, and the external thread section and the internal thread section are adapted to each other, so that the heat exhaust fixing seat can be screwed and fixed inside the pressure relief channel 127. After the heat exhaust reset member 71a, the exhaust fixing seat 72a and the valve member 73a are completed, the heat exhaust reset member 71a is in a compressed state, and the heat exhaust reset member 71a also pushes the valve member 73a to seal the heat exhaust port of the exhaust fixing seat 72a, then when the pressure value inside the pressure relief channel 127 is less than or equal to the set pressure value of the heat exhaust reset member 71a, that is, when the pressure value acting on the valve member 73a is less than or equal to the spring force of the heat exhaust reset member 71a, the fluid fuel in the pressure relief channel 127 will not flow through the heat exhaust port and be discharged from the outside of the valve body 12.

[0102] When the pressure value inside the pressure relief channel 127 exceeds the set pressure value of the heat exhaust reset member 71a, that is, when the pressure value acting on the valve member 73a overcomes the spring force of the heat exhaust reset member 71a, the valve member 73a moves away from the heat exhaust port of the exhaust fixing seat 72a, so that the heat exhaust port is opened, and the fluid fuel will flow through the heat exhaust port and be discharged to the outside of the valve body 12 along the pressure relief channel 127. In this way, the pressure relief regulating member 7 has a simple structure and is easy to assemble. At the same time, it also effectively ensures that when the replenishing device is at a relatively high temperature, part of the fluid fuel inside the storage container body 4 is discharged out of the storage container body 4 in time, thereby avoiding the risk of explosion of the storage container body 4 in a relatively high temperature environment.

[0103] It should be noted that the pressure relief channel 127 may be connected to the fluid channel 121. In some embodiments, Figure 3 As shown in FIG. 1 , the portion extending beyond the fluid connection pipe along the extension direction of the fluid output pipe is formed into a pressure relief channel 127. Alternatively, in another embodiment, the pressure relief channel 127 extends from the side of the valve body 12 close to the exhaust control 11 toward the direction of the fluid output pipe. Alternatively, as Figure 4 As shown, the pressure relief channel 127 is connected to the exhaust channel 122. The pressure relief channel 127 extends from the side of the valve body 12 close to the exhaust control 11 toward the exhaust channel 122 and is connected to the exhaust channel 122. In this way, it is easier to process and form the pressure relief channel 127 on the valve body 12, reducing the processing difficulty and processing cost.

[0104] In addition, in addition to the structure of the pressure relief regulating member 7, the utility model also discloses another preferred method. Figure 6 , Figure 7 and Figure 8 As shown, the pressure relief regulating member 7 includes a pressure relief reset member 71b, a pressure relief valve stem 73b, and a pressure relief connecting seat 72b, wherein the pressure relief reset member 71b is preferably a spring, and the two ends of the pressure relief reset member 71b are respectively abutted against the pressure relief valve stem 73b and the pressure relief connecting seat 72b. Specifically, a sealing protrusion is provided at one end of the pressure relief valve stem 73b close to the pressure relief channel 127, the pressure relief valve stem 73b is penetrated through the pressure relief connecting seat 72b, and one end of the pressure relief reset member 71b is abutted against the inner side wall of the pressure relief connecting seat 72b, and the other end of the pressure relief reset member 71b is abutted against the sealing protrusion.

[0105] For further details, please refer to Figure 6 and Figure 7As shown, the end of the pressure relief passage 127 is provided with a pressure relief chamber 74 connected to the outside of the valve body 12, that is, a pressure relief hole is provided on the cavity wall of the pressure relief chamber 74, and the interior of the pressure relief chamber 74 is connected to the outside of the pressure relief connection seat 72b through the pressure relief hole. The number of the pressure relief hole is preferably configured as one, of course, it is not limited to one, and can also be two pressure relief holes, three pressure relief holes, four pressure relief holes, etc. The pressure relief chamber 74 is also provided with a through hole 75 connected to the pressure relief passage 127, and the pressure relief connection seat 72b is fixedly connected to the pressure relief chamber 74, and the fixing here is preferably a threaded connection, and can also be a clamping connection, and can also be a bolt connection. When the pressure relief adjustment member 7 is installed in the pressure relief chamber 74, the pressure relief reset member 71b is in a compressed state, and the pressure relief reset member 71b pushes the sealing protrusion on the pressure relief valve stem 73b to abut against the cavity wall of the pressure relief chamber 74, thereby sealing the through hole 75 of the pressure relief chamber 74.

[0106] In addition, when the pressure value inside the pressure relief channel 127 exceeds the set pressure value of the heat discharge reset member 71a, that is, when the pressure value of the sealing protrusion acting on the pressure relief valve stem 73b overcomes the spring force of the pressure relief reset member 71b, the sealing protrusion moves away from the through-port 75 of the pressure relief chamber 74, so that the through-port 75 opens and further compresses the pressure relief reset member 71b, the fluid fuel will flow through the through-port 75 and be input into the pressure relief chamber 74, and finally be discharged from the pressure relief chamber 74 from the pressure relief hole.

[0107] When the pressure value inside the pressure relief channel 127 is less than or equal to the set pressure value of the heat exhaust reset member 71a, that is, the pressure value acting on the sealing protrusion of the pressure relief valve stem 73b is less than or equal to the spring force of the heat exhaust reset member 71a, the spring force of the heat exhaust reset member 71a will push the pressure relief valve stem 73b to perform a reset movement, and cause the sealing protrusion on the pressure relief valve stem 73b to move toward the through opening 75 until the sealing protrusion on the pressure relief valve stem 73b seals the through opening 75 of the pressure relief chamber 74.

[0108] For further details, please refer to Figure 6 , Figure 7 and Figure 8 As shown, the pressure relief valve stem 73b is provided with a rotating handle 76. Specifically, the rotating handle 76 is preferably screwed to the pressure relief valve stem 73b. The pressure relief connection seat 72b is provided with a guide protrusion 77. The guide protrusion 77 extends around the circumference of the pressure relief connection seat 72b, and a guide surface 78 is configured on the guide protrusion 77. Figure 6 and Figure 7As shown, the guide surface 78 spirally / inclinedly extends toward the side away from the pressure relief connecting seat 72b and along the central axis of the pressure relief valve stem 73b, and the deflected rotating handle 76 allows the rotating handle 76 to slide and contact along the guide surface 78 of the guide protrusion 77. Under the action of the guide surface 78 of the guide protrusion 77, the rotating handle 76 and the pressure relief valve stem 73b will translate along the central axis of the rotating handle 76 itself.

[0109] Thus, when the rotating handle 76 rotates to the guide protrusion 77, the pressure relief valve stem 73b will move in a direction away from the pressure relief connection seat 72b, so that the sealing protrusion on the pressure relief valve stem 73b moves away from the through-hole 75 of the pressure relief chamber 74, so that the through-hole 75 is opened. When the rotating handle 76 rotates in the opposite direction to leave the guide protrusion 77, the pressure relief valve stem 73b will move in a direction close to the pressure relief connection seat 72b, so that the sealing protrusion on the pressure relief valve stem 73b moves in a direction close to the through-hole 75, until the sealing protrusion on the pressure relief valve stem 73b seals the through-hole 75 of the pressure relief chamber 74, at which time, the bottom surface of the rotating handle 76 is in contact with the top surface of the pressure relief connection seat 72b.

[0110] It should be noted that the guide protrusion 77 is provided with an anti-slip limiter, and the anti-slip limiter and the guide surface 78 are respectively located at two opposite sides of the guide protrusion 77. When the rotating handle 76 slides along the guide surface 78 of the guide protrusion 77 to the top of the guide protrusion 77, until the rotating handle 76 abuts against the anti-slip limiter, the anti-slip limiter effectively prevents the rotating handle 76 from being detached from the guide protrusion 77.

[0111] It should also be noted that, in addition to the above two preferred pressure relief regulating member 7 structures, other pressure reducing throttling element structures may also be selected, such as a pressure limiting valve, which includes a pressure reducing valve body, a pressure reducing valve installed in the pressure reducing valve body, a pressure reducing piston, and a valve spring. The pressure reducing piston is used to seal the common rail intake end of the pressure reducing channel in the pressure reducing valve body. When the pressure is too high, the pressure reducing piston moves and deforms along the extension direction of the pressure reducing channel, so that the fluid fuel can flow along the extension direction of the pressure reducing channel. When the pressure is reduced to a pressure value lower than that of the pressure limiting valve, under the action of the valve spring, the pressure reducing piston will reset and recover its deformation, and close the pressure relief regulating member 7.

[0112] Second embodiment

[0113] The multi-position control gas circuit valve 1 disclosed in the first embodiment can well switch the use state according to the connector, and ensure the purity of the fluid fuel stored and used in the storage container body 4. Considering that in the event of a fire or other high-temperature conditions, the existing cylinder needs to manually close the main valve seat. If the main valve seat is not closed in time, the existing cylinder still supplies gas to the outside in a high-temperature environment, which is very likely to aggravate the fire.

[0114] In view of the above problems, the utility model discloses a preferred solution based on the multi-speed control gas circuit valve 1 disclosed in the first embodiment. Figure 5 As shown, the multi-speed control air circuit valve 1 also includes an over-temperature protection component 6, which is arranged in the fluid channel 121 of the valve body 12, and the over-temperature protection component 6 is melted or deformed by heat, that is, the over-temperature protection component 6 is melted or deformed under high temperature conditions, so that the valve core assembly 13 controls the fluid channel 121 to be in a sealed state.

[0115] In this embodiment, please refer to Figure 5 As shown, the multi-speed control gas circuit valve 1 is in the use mode, the valve core push rod 5 of the pressure reducing valve is plugged into the fluid input port 123 of the valve body 12, and the valve core push rod 5 will abut against the over-temperature protection member 6, thereby causing the over-temperature protection member 6 to abut against the active ejector pin 132 of the valve core assembly 13. The multi-speed control gas circuit valve 1 is in the charging mode, the gun needle push rod 21 of the charging spray gun 2 is connected to the fluid input port 123 of the valve body 12, and the gun needle push rod 21 abuts against the active ejector pin 132 of the valve core assembly 13, thereby causing the over-temperature protection member 6 to abut against the active ejector pin 132 of the valve core assembly 13, and the active ejector pin 132 abuts against the active end of the exhaust control 11.

[0116] Among them, Figure 5 As shown, the diameter of the over-temperature protection member 6 is smaller than the inner diameter of the fluid channel 121 of the valve body 12, and a gap is formed between the over-temperature protection member 6 and the fluid channel 121, so that the fluid fuel can pass through the over-temperature protection member 6, ensuring the smooth flow of the fluid fuel. Alternatively, the diameter of the over-temperature protection member 6 is matched with the inner diameter of the fluid channel 121, and a through hole is provided on the over-temperature protection member 6, so that the fluid fuel can pass through the over-temperature protection member 6.

[0117] In this way, the thickness of the over-temperature protection member 6 is equivalent to increasing the length of the valve core push rod 5, thereby increasing the push stroke of the active push pin 132, thereby ensuring that the fluid channel 121 is in a fully connected state, and further improving the stability and smoothness of the fluid fuel flowing through the fluid channel 121. In addition, the thickness of the over-temperature protection member 6 is equivalent to increasing the length of the gun needle push rod 21, which not only ensures that the active push pin 132 of the valve core assembly 13 can stably act on the active end of the exhaust control 11, but also increases the push stroke of the active end of the exhaust control 11, that is, ensuring that the active end of the exhaust control 11 achieves the purpose of full stroke, thereby ensuring that the exhaust control 11 is opened deeper and the exhaust channel 122 is in a fully ventilated state, further improving the stability of the fluid fuel flowing through the fluid channel 121, and also improving the efficiency of air and residual gas being discharged from the multi-speed control gas path valve 1.

[0118] Furthermore, when the multi-speed control gas circuit valve 1 is in a fire or high temperature condition, the valve body 12 and the valve core assembly 13 will absorb a large amount of heat and have a higher temperature. At the same time, the fluid fuel flowing through the fluid channel 121 also has a lot of heat. At this time, the over-temperature protection component 6 made of low melting point material will melt when heated. The material used for the over-temperature protection component 6 here can be selected from polyethylene, polypropylene, polyamide, polycarbonate, polyoxymethylene, polyphenylene ether, thermoplastic polyester, polytetrafluoroethylene, polyvinylidene fluoride, polyimide, polyphenylene sulfide, polysulfone plastics, polyketone plastics, polyarylate, polyvinyl chloride, polystyrene, acrylonitrile-butadiene-styrene copolymer, or a material formed by cross-linking two or more of the above materials, or a material formed by mixing two or more of the above materials.

[0119] In this way, when the multi-speed control gas circuit valve 1 is in a fire or high temperature condition, the temperature to which the over-temperature protection component 6 is subjected is higher than the melting point of the material of the over-temperature protection component 6, causing the over-temperature protection component 6 to melt or deform due to heat, and the movable ejector pin 132 of the valve core assembly 13 will fail by being subjected to the force of the gun needle ejector pin 21 / valve core ejector pin 5 through the over-temperature protection component 6. At this time, the movable end of the exhaust control unit 11 will reset and the fluid channel 121 will be switched to a sealed state again, automatically cutting off the fluid fuel flowing inside the fluid channel 121, thereby avoiding the risk of fire occurrence or aggravation.

[0120] As a preferred method of this embodiment, please refer to Figure 5 As shown, the over-temperature protection member 6 is sleeved on the end of the movable ejector pin 132 of the valve core assembly 13. Specifically, a fixed cavity is provided inside the over-temperature protection member 6, and the fixed cavity of the over-temperature protection member 6 is sleeved and connected to the end of the movable ejector pin 132, thereby ensuring that the over-temperature protection member 6 is stably installed on the valve core assembly 13, thereby effectively realizing that the gun needle ejector rod 21 / valve core ejector rod 5 transmits the force to the movable ejector pin 132 of the valve core assembly 13 more stably, and also avoiding the problem of the over-temperature protection member 6 being offset during the transmission process.

[0121] It should be noted that the multi-speed control air circuit valve 1 disclosed in the second embodiment is also applicable to and used in a replenishing device and a replenishing system.

[0122] Third embodiment

[0123] The multi-speed control gas circuit valve 1 disclosed in the first embodiment and the second embodiment can well switch the use state according to the connector, so as to ensure the purity of the fluid fuel stored and used in the storage container body 4. Considering that in the process of using the multi-speed control gas circuit valve 1, a specific connector needs to be selected to achieve the effect of double-stroke adjustment. In this way, the use process will be limited by the components of the connector. In response to this problem, the utility model also discloses a preferred method. It should be noted here that the only difference between this embodiment and the first embodiment and the second embodiment is that:

[0124] Please combine the specific Figures 9 to 12 As shown, the multi-speed control gas circuit valve 1 also includes a multi-speed switch 9, which is installed on the valve body 12. The installation here can be optionally threaded connection, welding connection, or other connection methods between the valve body and the connector in this field.

[0125] The core solution of this embodiment is that the multi-position switch 9 has a first-position mode, a second-position mode and a third-position mode, wherein in the first-position mode, the switch top rod 91 of the multi-position switch 9 is separated from the valve core assembly 13, and the movable ejector pin 132 of the valve core assembly 13 closes the air inlet end of the channel 134 in the plug body without being subjected to force, so that the fluid channel 121 is in a sealed state. The separation here should be understood as including two modes: a spacing between the switch top rod 91 and the valve core assembly 13, and a contact between the switch top rod 91 and the valve core assembly 13 but without the existence of an interaction force.

[0126] In the second gear mode, the switch top rod 91 of the multi-gear switch 9 abuts against the valve core assembly 13, specifically, the switch top rod 91 of the multi-gear switch 9 abuts against the movable ejector pin 132 of the valve core assembly 13, so that the shielding portion 135 of the movable ejector pin 132 is away from the air inlet end of the channel 134 in the plug body, thereby causing the fluid channel 121 to be in a connected state, and the fluid fuel inside the storage container body 4 will flow through the fluid channel 121 and the channel 134 in the plug body, and be transported to the energy device to supply the energy device for use;

[0127] In the third gear mode, the switch top rod 91 of the multi-gear switch 9 abuts against the valve core assembly 13. While the switch top rod 91 of the multi-gear switch 9 abuts against the movable top pin 132 of the valve core assembly 13, it also pushes the movable top pin 132 to abut against the movable end of the exhaust control 11 to open the exhaust control 11, so that the exhaust channel 122 is in a ventilated state, thereby keeping the fluid channel 121 in a connected state and the exhaust channel 122 in a ventilated state. At this time, the air and residual gas inside the storage container body 4 will be able to be stably discharged from the storage container body 4, and the replenishing device is in the charging mode.

[0128] The working principle of the multi-position switch 9 is as follows: the switch top rod 91 of the multi-position switch 9 is defined as the initial position in the first position mode, and the switch top rod 91 of the multi-position switch 9 will form a first stroke in the second position mode. At this time, the switch top rod 91 acts on the movable ejector pin 132 of the valve core assembly 13 and drives the movable ejector pin 132 to move the first push distance. The switch top rod 91 of the multi-position switch 9 will have a second stroke in the third position mode. At this time, the movable ejector pin 132 of the valve core assembly 13 is subjected to the force of the switch top rod 91 and moves along the extension direction of the first push direction, and at the same time abuts against the exhaust control 11 to open, and the movable ejector pin 132 moves the second push distance under the action of the switch top rod 91.

[0129] From the above, it can be seen that the use of a multi-position switch 9 to replace the connection between different connectors and the valve body 12 avoids the problem of replacing different corresponding connectors during the process of the multi-position control of the gas circuit valve 1, and also avoids the problem of the connector and the valve body 12 being loose and leaking due to frequent disassembly and assembly. When in use, it is only necessary to plug the external air guide tube into the multi-position switch 9, which improves the convenience and efficiency of using the multi-position control gas circuit valve 1. The unexpected effect is that the purpose of switching between the first push stroke and the second push stroke of the valve core assembly 13 can be completed by easily switching the multi-position switch 9, so as to achieve the effect of easier switching mode of the multi-position control gas circuit valve.

[0130] As a preferred method of this embodiment, please refer to Figures 9 to 12 As shown, the multi-position switch includes a switch toggle 92 and a switch connection seat 93, and a switch air guide cavity 94 that can communicate with the fluid channel 121 is provided on the switch connection seat 93. When the switch connection seat 93 is installed on the valve body 12, the switch air guide cavity 94 will be connected with the fluid channel 121 of the valve body 12, so that the fluid fuel can flow stably between the switch air guide cavity 94 and the valve body 12. In addition, a switch external interface 95 for connecting the air guide pipe is also provided on the switch connection seat 93. The switch external interface 95 is connected with the switch air guide cavity 94, so that the fluid fuel can flow from the air guide pipe to the switch air guide cavity 94 to be replenished in the storage container body 4, or the fluid fuel can flow from the switch air guide cavity 94 to the air guide pipe to be supplied to the energy device for use.

[0131] For further details, please refer to Figures 9 to 12As shown, the switch toggle member 92 is hinged to the switch top rod member 91, and the switch top rod member 91 is slidably disposed in the switch air guide cavity 94, wherein the hinge point between the switch toggle member 92 and the switch top rod member 91 is not on the rotation center of the switch toggle member 92, that is, by utilizing the principle of eccentric motion, when the switch toggle member 92 is swung / rotated, the switch top rod member 91 can be driven to slide in the switch air guide cavity 94, and the movement stroke of the switch top rod member 91 inside the switch air guide cavity 94 is made different.

[0132] As a further preferred embodiment of this embodiment, please refer to Fig. 9 As shown, the switch toggle member 92 is provided with a first moving contact end 921, a second moving contact end 922 and a third moving contact end 923, wherein the first moving contact end 921 is a side of the switch toggle member 92 away from the hinge point. Fig.10 As shown, the switch toggle member 92 is switched to the first moving contact end 921, that is, the first moving contact end 921 of the switch toggle member 92 abuts against the switch connecting seat 93, and the switch top rod member 91 of the multi-position switch 9 is separated from the valve core assembly 13 under the traction of the switch toggle member 92. At this time, the multi-position switch 9 is in the first gear mode.

[0133] like Fig. 9 As shown, the third moving contact end 923 is a side surface of the switch toggle member 92 close to the hinge point. Fig.11 As shown, the switch toggle member 92 is switched to the third moving contact end 923, that is, the third moving contact end 923 of the switch toggle member 92 abuts against the switch connecting seat 93, so that the switch top rod 91 of the multi-speed switch 9 is inserted into the deepest position in the switch air guide cavity 94, completing the movement of the second stroke, thereby ensuring that the movable top pin 132 of the valve core assembly 13 can move along the extension direction of the first push stroke and abut to open the exhaust control 11. At this time, the multi-speed switch 9 is in the third gear mode.

[0134] like Fig. 9 As shown, the second moving contact end 922 is a side surface of the switch toggle member 92 between the farthest distance and the closest distance, that is, the distance between the second moving contact end 922 and the hinge point is smaller than the distance between the first moving contact end 921 and the hinge point, and the distance between the second moving contact end 922 and the hinge point is larger than the distance between the third moving contact end 923 and the hinge point. Fig.12 As shown, the switch toggle member 92 is switched to the second moving contact end 922, that is, the second moving contact end 922 of the switch toggle member 92 abuts against the switch connecting seat 93, so that the switch top rod 91 of the multi-speed switch 9 completes the movement of the first stroke. At this time, the movable ejector pin 132 of the valve core assembly 13 only moves the distance of the first push stroke under the action of the switch top rod 91. At this time, the multi-speed switch 9 is in the second gear mode.

[0135] As a preferred method of this embodiment, please refer to Fig.10 , Fig.11 and Fig.12 As shown, a switch seal 96 is arranged on the switch top rod 91, and a sealing portion 97 is formed on the switch air guide cavity 94. The sealing portion 97 cooperates with the switch seal 96 to make the switch air guide cavity 94 in a sealed state. Specifically, when the switch toggle member 92 is switched to the first moving contact end 921, the switch seal 96 abuts against the sealing portion 97 under the drive of the switch top rod 91. In this way, in cooperation with the sealing state of the valve core assembly 13, a double sealing effect can be achieved, effectively improving the sealing performance of the multi-speed control air circuit valve 1. When the switch toggle member 92 is switched to the second moving contact end 922 or the third moving contact end 923, the switch seal 96 is separated from the sealing portion 97 under the drive of the switch top rod 91, thereby releasing the sealing state of the switch air guide cavity 94 and ensuring the smooth flow of the fluid fuel.

[0136] The technical means disclosed in the solution of the utility model are not limited to the technical means disclosed in the above-mentioned implementation mode, but also include technical solutions composed of any combination of the above technical features. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the utility model, and these improvements and modifications are also regarded as the protection scope of the utility model.

Claims

1. A multi-position control gas circuit valve (1), characterized in that: include: exhaust controls (11); A valve body (12), wherein the valve body (12) has a fluid channel (121) and an exhaust channel (122), and the exhaust control unit (11) is arranged in the exhaust channel (122); A valve core assembly (13) is installed inside the fluid channel (121) to control the fluid channel (121) to switch between a connected state and a sealed state. In the inflation mode, the valve core assembly (13) controls the fluid channel (121) to be in a connected state, and abuts against and opens the exhaust control (11) to put the exhaust channel (122) in a ventilated state.

2. The multi-position control air circuit valve (1) according to claim 1, characterized in that: The valve core assembly (13) has a first thrust stroke and a second thrust stroke, wherein the first thrust stroke is a stroke for the movable ejector pin (132) of the valve core assembly (13) to move to a side close to the exhaust control unit (11), and the first thrust stroke is used to place the fluid channel (121) in the connected state; The second pushing stroke is a stroke for moving along the extension direction of the first pushing stroke and abutting to open the exhaust control (11), and the second pushing stroke is used for the fluid channel (121) to maintain the connected state and put the exhaust channel (122) in a ventilated state.

3. The multi-position control gas circuit valve (1) according to claim 1, characterized in that: The exhaust control (11) includes a movable seal and a valve seat assembly, wherein the movable seal can be reciprocatingly slidably fitted inside the valve seat assembly, and in the inflation mode, the valve core assembly (13) abuts against the movable seal to connect the valve seat assembly to the exhaust channel (122), and the valve seat assembly is arranged at the end of the exhaust channel (122) and is detachably connected to the valve body (12).

4. The multi-position control gas circuit valve (1) according to claim 3, characterized in that: The valve seat assembly comprises an exhaust seat body (112a) and an exhaust reset member (114a); an exhaust valve stem (111a) is inserted into the exhaust seat body (112a); the exhaust valve stem (111a) is the movable sealing member; the exhaust seat body (112a) is fixedly connected to the end of the exhaust passage (122); and the exhaust reset member (114a) is used to enable the exhaust valve stem (111a) to automatically reset when the force is removed.

5. The multi-position control air circuit valve (1) according to claim 3, characterized in that: The valve seat assembly comprises an exhaust connection seat (112b), an airtight core body (1113) inserted into the exhaust connection seat (112b), and a core spring return member (1112) arranged inside the airtight core body (1113); the airtight core body (1113) is installed with a movable core rod (1111), the movable core rod (1111) is the movable sealing member, and the core spring return member (1112) is sleeved on the movable core rod (1111) so that the movable core rod (1111) can automatically return to its original position when the force is removed.

6. The multi-position control gas circuit valve (1) according to claim 3, 4 or 5, characterized in that: A sealing ring (8) is arranged at the connecting intersection between the fluid channel (121) and the exhaust channel (122), and the movable sealing member is inserted into the sealing ring (8).

7. The multi-position control gas circuit valve (1) according to any one of claims 1 to 5, characterized in that: It also includes a multi-position switch (9), the multi-position switch (9) being mounted on the valve body (12), and the multi-position switch (9) having a first gear mode, a second gear mode, and a third gear mode; In the first gear mode, the switch top rod (91) of the multi-gear switch (9) is separated from the valve core assembly (13), and the fluid channel (121) is in the sealed state; In the second gear mode, the switch top rod (91) of the multi-gear switch (9) abuts against the valve core assembly (13), and causes the fluid channel (121) to be in the connected state; In the gear three mode, the switch top rod (91) of the multi-gear switch (9) abuts against the valve core assembly (13) and keeps the fluid channel (121) in a connected state, so that the exhaust channel (122) is in a ventilated state.

8. The multi-position control air circuit valve (1) according to claim 7, characterized in that: The multi-position switch comprises a switch toggle member (92) and a switch connection seat (93); a switch air guide cavity (94) capable of communicating with the fluid channel (121) is provided on the switch connection seat (93); the switch toggle member (92) is hingedly connected to the switch top rod member (91), and the switch top rod member (91) is slidably arranged in the switch air guide cavity (94).

9. The multi-position control gas circuit valve (1) according to claim 8, characterized in that: The switch toggle member (92) is provided with a first moving contact end (921), a second moving contact end (922) and a third moving contact end (923); The switch toggle member (92) is movably switched to the first moving contact end (921), and the multi-position switch (9) is in the first position mode; or, The switch toggle member (92) is movably switched to the second movable contact end (922), and the multi-position switch (9) is in the second position mode; or, The switch toggle member (92) is movably switched to the third moving contact end (923), and the multi-position switch (9) is in the third position mode.

10. The multi-position control gas circuit valve (1) according to claim 1, characterized in that: It also includes an over-temperature protection component (6), which is arranged in the fluid channel (121), and the over-temperature protection component (6) is melted or deformed by heat, so that the valve core component (13) controls the fluid channel (121) to be in a sealed state.

11. The multi-position control gas circuit valve (1) according to claim 10, characterized in that: The over-temperature protection component (6) is sleeved on the end of the movable ejector pin (132) of the valve core assembly (13).

12. The multi-speed control gas circuit valve (1) according to claim 1 or 2 or 3 or 10, characterized in that: It also includes a pressure relief adjustment member (7), and a pressure relief channel (127) is also provided on the valve body (12), and the pressure relief adjustment member (7) is installed in the pressure relief channel (127).

13. The multi-position control gas circuit valve (1) according to claim 12, characterized in that: The pressure relief regulating member (7) comprises a heat exhaust reset member (71a), an exhaust fixing seat (72a) provided with a heat exhaust port, and a valve member (73a) for closing the heat exhaust port, wherein both ends of the heat exhaust reset member (71a) abut against the valve member (73a) and the valve body (12), and the heat exhaust reset member (71a), the exhaust fixing seat (72a) and the valve member (73a) are all installed in the pressure relief channel (127).

14. The multi-position control gas circuit valve (1) according to claim 12, characterized in that: The pressure relief regulating member (7) comprises a pressure relief reset member (71b), a pressure relief valve stem (73b), and a pressure relief connecting seat (72b); two ends of the pressure relief reset member (71b) are respectively abutted against the pressure relief valve stem (73b) and the pressure relief connecting seat (72b); the end of the pressure relief channel (127) is provided with a pressure relief chamber (74) connected to the outside of the valve body (12); the pressure relief chamber (74) is provided with a through opening (75) connected to the pressure relief channel (127); the pressure relief connecting seat (72b) is fixedly connected to the pressure relief chamber (74); the pressure relief reset member (71b) is used to reset the pressure relief valve stem (73b) so that the pressure relief valve stem (73b) seals the through opening (75).

15. The multi-position control gas circuit valve (1) according to claim 14, characterized in that: The pressure relief valve rod (73b) is provided with a rotating handle (76), and the pressure relief connecting seat (72b) is provided with a guiding protrusion (77). The rotating handle (76) is deflected so that the rotating handle (76) can slide along the guiding surface (78) of the guiding protrusion (77) and move in translation along its own central axis direction.

16. The multi-position control gas circuit valve (1) according to claim 14, characterized in that: The pressure relief channel (127) is connected to the fluid channel (121), or the pressure relief channel (127) is connected to the exhaust channel (122).

17. The multi-position control air circuit valve (1) according to claim 1, characterized in that: The fluid channel (121) includes a fluid main channel, a fluid output pipe, and a fluid connecting pipe; The main fluid channel is connected to the fluid output pipe through the fluid connecting pipe, and the main fluid channel extends along the central axis of the valve body (12); and / or, The main fluid channel is directly connected to the fluid output pipe, and the fluid output pipe extends obliquely to the center axis direction of the valve body (12).

18. The multi-position control air circuit valve (1) according to claim 1, characterized in that: The exhaust passage (122) comprises an exhaust main passage, an exhaust output pipe and an exhaust input pipe; The exhaust inlet pipe is connected to the exhaust outlet pipe through the exhaust main channel, and the exhaust main channel extends in a direction parallel to the central axis of the valve body (12); and / or, The exhaust passage (122) extends obliquely to the center axis direction of the valve body (12).

19. A replenishing device, characterized in that: include: The multi-position control air circuit valve (1) according to any one of claims 1 to 18; A storage container body (4), wherein the multi-speed control gas path valve (1) is fixedly connected to the storage container body (4).

20. A replenishment system, characterized in that: Comprising the replenishing device as claimed in claim 19.

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