High-pressure gas high-flow rapid filling interface controller

Abstract

The utility model discloses a high-pressure gas large-flow rapid filling connector controller which comprises a gas inlet connector pipe, a main valve element set and a movable valve element set are installed in the gas inlet connector pipe, and a main sealing seat is installed in the gas inlet connector pipe. The main valve element set is provided with a valve element main flow channel and a gas channel. The movable valve element set is movably arranged at one end of the main valve element set in a sleeved mode, a main valve sealing gasket is installed on the movable valve element set, and the flow of the gas channel is controlled through the contact degree of the main valve sealing gasket and the main sealing seat. The movable valve element set is provided with a pilot flow channel, the pilot flow channel guides pilot gas to flow in the direction away from the main sealing seat and then converge into the valve element main flow channel, and the pilot gas is a part of gas shunted to the front of the main valve element set from the gas inlet connector pipe. After the valve element is improved, the first flow guide channel is utilized, and the pressure difference between the two ends of the valve element is used for assisting a worker in controlling high-pressure gas.

Description

Technical Field

[0001] The utility model is a high-pressure gas controller, in particular to a high-pressure gas large-flow rapid filling interface controller. Background Art

[0002] In the field of high-pressure gas control, particularly in high-pressure (typically 20-100 MPa) filling applications such as compressed natural gas (CNG) and high-pressure hydrogen, traditional two-position, three-way valves face numerous challenges. These traditional valve designs often fail to effectively adapt to high-pressure conditions and suffer from numerous drawbacks. Among the most prominent issues are excessive frictional resistance of the control valve core and the tendency for the valve core to become stuck. These issues not only affect valve stability and reliability, but also increase operational complexity and maintenance costs.

[0003] To address these issues, the utility model patent, published under the publication number CN212273133U, proposes a plunger-type rack-driven two-position, three-way valve. Through innovative design, this patented solution overcomes the shortcomings of traditional two-position, three-way valves under high-pressure conditions, improving their adaptability and reliability.

[0004] However, although the utility model patent solution of CN212273133U has made some technical breakthroughs, some problems are still exposed during actual application. Specifically, the movement of the valve core in this solution mainly relies on manual control. During the filling process of high-pressure and large-flow gas, the staff needs to exert a lot of force to complete operations such as valve core movement, which not only increases the labor intensity of the operator, but also may affect the convenience and safety of the operation. At the same time, the handle of the above-mentioned utility model patent is radially fixed and cannot be rotated. During the control process, if the handle space is limited and cannot be rotated, the operation is inconvenient. Utility Model Content

[0005] Therefore, in order to solve the above-mentioned shortcomings, the present invention provides a high-pressure gas large-flow fast filling interface controller. The present invention improves the valve core and utilizes the pilot flow channel to assist the staff in controlling the high-pressure gas with the help of the pressure difference at both ends of the valve core.

[0006] The utility model provides a high-pressure gas large-flow fast filling interface controller, comprising an air intake interface pipe, in which a main valve core group and a movable valve core group are installed.

[0007] A main sealing seat is installed in the air inlet interface pipe, and the main valve core group passes through the main sealing seat;

[0008] The main valve core assembly is provided with a valve core main flow channel and a gas channel, and the high-pressure gas is diverted through the airflow interface pipe and then enters the valve core main flow channel through the gas channel;

[0009] The movable valve core assembly is movably sleeved on one end of the main valve core assembly and is located in the air inlet interface pipe. A main valve sealing gasket is installed on the movable valve core assembly, and the flow rate of the gas channel is controlled by the contact degree between the main valve sealing gasket and the main sealing seat;

[0010] The movable valve core assembly is provided with a pilot flow channel, which guides the pilot gas to flow away from the main sealing seat and then merges into the valve core main flow channel. The pilot gas is a part of the gas diverted from the air inlet interface pipe to the front of the main valve core assembly.

[0011] Optionally, a drainage cover is installed in the air inlet interface pipe, the movable valve core group is movably installed in the drainage cover, and a valve core reset power member is installed between the inner end of the drainage cover and the end surface of the movable valve core group;

[0012] Optionally, the movable valve core assembly includes a movable valve core seat and a movable valve core cover, and the main valve sealing gasket is installed at the end of the movable valve core seat;

[0013] The movable valve core seat has a valve core cavity with a central hole, the front part of the movable valve core cover is connected to the valve core cavity, and a pilot groove independent of the valve core cavity is provided at the connecting part of the movable valve core cover and the movable valve core seat, and the air inlet end of the pilot groove is a small gap annular hole formed between the movable valve core seat and the guide cover;

[0014] A drainage hole is provided between the pilot groove and the valve core cavity to connect the pilot groove and the valve core cavity;

[0015] One end of the main valve core assembly passes through the valve core cavity and extends to the movable valve core cover;

[0016] The small gap annular hole, the pilot groove and the drainage hole constitute the pilot flow channel.

[0017] Optionally, the drainage hole is opened in a drainage spacer, and the drainage spacer is installed in the valve core cavity and is fixed by a movable valve core cover with a pressing force.

[0018] Optionally, the main valve core group is provided with an exhaust component, which includes an exhaust seat sleeve, an exhaust valve and an exhaust pipe;

[0019] The exhaust seat sleeve is installed on the main valve core assembly and has an exhaust channel in the exhaust seat sleeve. When the main valve core assembly moves to a specified position, the valve core main flow channel of the main valve core assembly is connected to the exhaust channel.

[0020] The exhaust pipe is installed on the exhaust seat sleeve through an exhaust valve and is communicated with the exhaust passage.

[0021] Optionally, the main valve core group is installed with a drive assembly, which includes: an intermediate connecting pipe, a rack ring and a shift bar;

[0022] The intermediate connecting pipe is connected to the air inlet interface pipe, and the main valve core group is located in the intermediate connecting pipe;

[0023] The rack ring is rotatably mounted on the main valve core assembly, and an axial force transmission block is radially mounted between the rack ring and the main valve core assembly, and a ring groove for mounting the force transmission block is formed in the rack ring;

[0024] The shift bar is rotatably installed via a pin shaft, and one end of the shift bar is meshed with the rack ring for transmission.

[0025] Optionally, a mounting portion for mounting a rack ring is provided on the main valve core assembly, and a groove for mounting a force transmission block is provided on the mounting portion.

[0026] Optionally, a gear box is installed on the intermediate connecting pipe, the pin shaft is installed on the gear box, and a handle is installed on the shift bar; the handle, shift bar, gear box and rack ring rotate synchronously with the axis of the main valve core group.

[0027] Optionally, the main valve core assembly includes a main valve core, a main valve core small diameter sleeve and a fastening sleeve.

[0028] The main valve core includes a large diameter portion and a small diameter portion, wherein the small diameter portion is inserted into the movable valve core group, and an inclined gas channel is opened at the transition between the large diameter portion and the small diameter portion;

[0029] The main valve core small diameter sleeve is sleeved on the small diameter part of the main valve core, the fastening sleeve is connected to the front end of the small diameter part and presses the main valve core small diameter sleeve tightly, the main valve core small diameter sleeve is provided with a gas passage, and the main valve core small diameter sleeve and the gas passage of the main valve core are connected;

[0030] A gap channel is provided between the main valve core small diameter sleeve and the small diameter portion of the main valve core. One end of the gap channel is communicated with the pilot flow channel, and the other end is communicated with the valve core main flow channel after passing through the gas channel.

[0031] Optionally, the high-pressure gas large-flow rapid filling interface controller further includes an inflation connection component, which is connected to an intermediate connecting pipe.

[0032] The utility model uses the high-pressure gas large flow rapid filling interface controller, which includes a gas source disconnection stage and a ventilation stage when in use;

[0033] The gas source disconnection stage is to move the main valve core group and the movable valve core group to prevent the gas source from entering the gas receiving equipment from the controller;

[0034] The ventilation stage is to move the main valve core group and the movable valve core group to allow the gas source to enter the gas receiving equipment from the controller

[0035] The utility model has the following advantages:

[0036] The utility model is used to control high-pressure and high-flow gas. After the valve core is reasonably improved, the pilot flow channel is used to assist the movement of the valve core with the help of the pressure difference at both ends of the valve core, thereby realizing safe and reliable control of high-pressure and high-flow gas. After the valve core is improved, it is easier for workers to control high-pressure and high-flow gas, and the use is also safer and more controllable.

[0037] At the same time, through the improvement of the drive assembly and the use of the rack ring design, the handle can be rotated around the axis of the main valve core, and the valve core movement can also be controlled by pushing the handle; avoiding the problem that the traditional controller is inconvenient to turn the handle when the position is not suitable. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 3D schematic diagram of the high-pressure gas large-flow rapid filling interface controller;

[0039] Figure 2 This is a half-section schematic diagram of the high-pressure gas large-flow rapid filling interface controller (closed process state)

[0040] Figure 3 yes Figure 2 A partial enlarged diagram of M in the figure (the arrows in the figure indicate the direction of gas flow)

[0041] Figure 4 This is a half-section diagram of the high-pressure gas large-flow rapid filling interface controller (closed state diagram)

[0042] Figure 5 yes Figure 4 A partial enlarged schematic diagram of N in the figure (the arrows in the figure indicate the gas flow direction);

[0043] Figure 6 1. A half-section schematic diagram of the high-pressure gas large-flow rapid filling interface controller (in the open process state);

[0044] Figure 7 yes Figure 6 A partial enlarged schematic diagram in the middle (the arrows in the figure indicate the gas flow direction);

[0045] Figure 8 1. is a half-section schematic diagram of the high-pressure gas large-flow rapid filling interface controller (fully opened);

[0046] Figure 9 yes Figure 8 A partial enlarged schematic diagram of B in the middle;

[0047] Figure 10 This is a partial connection diagram of the gear box of the high-pressure gas large-flow rapid filling interface controller;

[0048] Figure 11 This is a partial schematic diagram of the rack ring connection of the high-pressure gas large-flow rapid filling interface controller;

[0049] Figure 12 This is a schematic diagram of the main valve core group structure of the high-pressure gas large-flow rapid filling interface controller;

[0050] Figure 13 is a schematic diagram of the three-dimensional structure of the gear box;

[0051] Figure 14 This is a schematic diagram of the structure of the rack ring installation force transmission block

[0052] Figure 15 is a three-dimensional schematic diagram of the movable valve core cover;

[0053] Figure 16 1 is a schematic diagram of the three-dimensional structure of the main valve core;

[0054] Figure 17 1 is a schematic structural diagram of the small diameter sleeve;

[0055] Figure 18 It is a three-dimensional schematic diagram of the small-diameter sleeve from another perspective. DETAILED DESCRIPTION

[0056] The following describes in detail embodiments of the present application, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limiting the present application.

[0057] In this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "includes," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0058] In the field of high-pressure gas control, particularly in high-pressure (typically 20-100 MPa) filling applications such as compressed natural gas (CNG) and high-pressure hydrogen, traditional two-position, three-way valves face numerous challenges. These traditional valve designs often fail to effectively adapt to high-pressure conditions and suffer from numerous drawbacks. Among the most prominent issues are excessive frictional resistance of the control valve core and the tendency for the valve core to become stuck. These issues not only affect valve stability and reliability, but also increase operational complexity and maintenance costs.

[0059] To address these issues, the utility model patent, published under the publication number CN212273133U, proposes a plunger-type rack-driven two-position, three-way valve. Through innovative design, this patented solution overcomes the shortcomings of traditional two-position, three-way valves under high-pressure conditions, improving their adaptability and reliability.

[0060] However, although the utility model patent solution with publication number CN212273133U has made some technical breakthroughs, some problems are still exposed during actual application. Specifically, the movement of the valve core in this solution mainly relies on manual control. During the filling process of high-pressure and large-flow gas, the staff needs to exert a lot of force to complete operations such as gas control, which not only increases the labor intensity of the operator, but also may affect the convenience and safety of the operation. At the same time, the handle of the above-mentioned utility model patent is fixed in the radial direction and cannot be rotated. During the control process, if the handle space is limited and cannot be rotated, the operation is inconvenient.

[0061] Based on the above reasons, Figures 1-14 As shown, this embodiment provides a high-pressure gas large-flow rapid filling interface controller, including an air inlet interface pipe 24, a main valve core assembly 28, a movable valve core assembly, a guide cover 22, an exhaust assembly, a drive assembly and an air charging connection assembly;

[0062] A main sealing seat 15 is installed in the interface pipe 23, and the main valve core assembly 28 passes through the main sealing seat 15;

[0063] The main valve core group and the movable valve core group are installed in the air inlet interface pipe 24. The main valve core group is provided with a valve core main flow channel 101 and a gas channel 102. After the high-pressure gas is diverted through the air flow interface pipe 24, it enters the valve core main flow channel 101 through the gas channel 102.

[0064] The movable valve core assembly is movably sleeved on one end of the main valve core assembly 28 and is located in the air inlet interface pipe 24. A main valve sealing gasket 16 is installed on the movable valve core assembly. The flow rate of the gas channel 102 is controlled by the contact degree between the main valve sealing gasket 16 and the main sealing seat 15.

[0065] The movable valve core assembly is provided with a pilot flow channel, which guides the pilot gas to flow away from the main sealing seat and then merges into the valve core main flow channel. The pilot gas is a part of the gas diverted from the air inlet interface pipe to the front of the main valve core assembly.

[0066] The drainage cover 22 is installed in the air intake interface pipe 24, and the movable valve core group is movably installed in the drainage cover 22. A valve core reset power member 23 (optionally, a reset spring) is installed between the inner end of the drainage cover 22 and the end surface of the movable valve core group.

[0067] The movable valve core assembly includes a movable valve core seat 17 and a movable valve core cover 21 , and the main valve sealing gasket 16 is installed at the end of the movable valve core seat 17 ;

[0068] The movable valve core seat 17 has a valve core cavity with a central hole. The front portion of the movable valve core cover 21 is connected to the valve core cavity. A pilot groove 103 independent of the valve core cavity is provided at the connection portion between the movable valve core cover 21 and the movable valve core seat 17 (the pilot groove can be formed by a rectangular through groove 211 provided on the movable valve core cover). The air inlet end of the pilot groove is a small gap annular hole 104 formed between the movable valve core seat and the guide cover.

[0069] A drainage hole 105 is provided between the pilot groove 103 and the valve core cavity to connect the pilot groove and the valve core cavity;

[0070] One end of the main valve core assembly passes through the valve core cavity and extends to the movable valve core cover;

[0071] The small gap annular hole 104 , the pilot groove 103 and the drainage hole 105 constitute the pilot flow channel.

[0072] Furthermore, the drainage hole 105 is opened in the drainage spacer 19, and the drainage spacer 19 is installed in the valve core cavity and is fixed by the movable valve core cover with a clamping force. Energy storage sealing rings (energy storage sealing ring B16 and energy storage sealing ring C20) are provided at both ends of the drainage spacer for sealing with the contact surface of the main valve movable valve core seat and the main valve movable core cover.

[0073] The exhaust assembly includes an exhaust seat cover 13, an exhaust valve and an exhaust pipe 25;

[0074] The exhaust seat sleeve 13 is installed on the main valve core assembly 28, and has an exhaust channel 106 in the exhaust seat sleeve. When the main valve core assembly moves to a specified position, the main valve core flow channel of the main valve core assembly is connected to the exhaust channel.

[0075] The exhaust pipe is installed on the exhaust seat sleeve through the exhaust valve and is connected to the exhaust channel (such as Figure 4 and Figure 5 shown).

[0076] The driving assembly acts on the main valve core group 28, such as Figure 1 、 Figure 2 and Figure 11 Figure 14 As shown, the drive assembly includes an intermediate connecting pipe 7, a gear box 9, a rack ring 8 and a shift bar 10;

[0077] The intermediate connecting pipe 7 is connected to the air inlet interface pipe 24, and the main valve core group is located in the intermediate connecting pipe; the gear box is rotatably mounted on the intermediate connecting pipe 7;

[0078] The rack ring 8 is rotatably mounted on the main valve core assembly 28, and an axial force transmission block 12 is radially mounted between the rack ring and the main valve core assembly. An annular groove 81 for mounting the force transmission block is formed in the rack ring.

[0079] The shift bar 10 is rotatably mounted on the gear box 9 via a pin, and one end of the shift bar 10 is meshed with the rack ring 8. A handle 11 is mounted on the shift bar 10; the handle 11, shift bar 10, gear box 9 and rack ring 8 rotate synchronously with the axis of the main valve core assembly.

[0080] In order to realize the installation and limitation of the force transmission block, a mounting portion 281 for mounting a rack ring is provided on the main valve core group. A groove 284 for mounting the force transmission block is provided on the mounting portion, and a ring groove 81 adapted to the force transmission block 12 is provided inside the rack ring.

[0081] The inflation connection assembly is connected to the intermediate connecting pipe, and the inflation connection assembly includes a locking sleeve 1, a locking tongue 2, a matching positioning frame 3, a sealing sleeve 4, an inflation nozzle 5 and a connecting body 6. The connecting body 6 is connected to the intermediate body 7. An energy storage sealing ring D is installed between the main valve core and the connecting body. The inflation nozzle is installed in the connecting body through the sealing sleeve. The inflation nozzle 5 is installed on the side of the inflation nozzle close to the main valve core through the inflation nozzle spring 30. The matching positioning frame is connected to the front end of the connecting body. The locking tongue is rotatably installed on the matching positioning frame. The locking sleeve is installed on the periphery of the matching positioning frame through a spring to tighten the locking tongue after connecting the air receiving equipment.

[0082] In order to realize the installation and removal of the main valve core assembly, in one embodiment, the main valve core assembly includes a main valve core 280, a main valve core small diameter sleeve 282 and a fastening sleeve 283.

[0083] The main valve core 28 includes a large diameter portion 2801 and a small diameter portion 2802, wherein the small diameter portion is inserted into the movable valve core assembly, and an inclined gas channel 102 is opened at the transition between the large diameter portion and the small diameter portion;

[0084] The main valve core small diameter sleeve 282 is sleeved on the small diameter portion of the main valve core 280, and the fastening sleeve is connected to the front end of the small diameter portion by a threaded connection, and presses the main valve core small diameter sleeve 282 tightly. The main valve core small diameter sleeve is provided with a gas channel 102, and the gas channel of the main valve core and the main valve core are connected;

[0085] A gap channel 108 is provided between the main valve core small diameter sleeve and the small diameter portion of the main valve core. One end of the gap channel can be communicated with the pilot flow channel (eg, Figure 5 As shown), the other end is connected to the main flow channel of the valve core after passing through the gas channel; illustratively, the gap channel can be formed by a through groove 2021 opened inside the small-diameter sleeve of the main valve core.

[0086] In another embodiment, the drainage spacer may be a part of the main valve movable core seat or the main valve movable core cover; and the drainage hole may be opened at the front end of the main valve movable core cover.

[0087] This utility model is used to control high-pressure, high-flow gas. After rationally improving the valve core, it utilizes a pilot flow channel and the pressure difference across the valve core to assist the valve core in movement, thereby achieving safe and reliable control of high-pressure, high-flow gas. The improved valve core makes it easier for workers to control high-pressure, high-flow gas, and its use is safer and more controllable. At the same time, through improvements to the drive assembly and the design of the rack ring, the handle can be rotated around the axis of the main valve core, and the valve core movement can also be controlled by pushing the handle, avoiding the problem of traditional controllers requiring inconvenient handle manipulation when the position is not appropriate.

[0088] The method for using the high-pressure gas large-flow rapid filling interface controller includes a gas source disconnection stage and a ventilation stage;

[0089] The gas source disconnection stage is to prevent the gas source from entering the gas receiving equipment from the controller. The specific process is:

[0090] Holding the upper part of the handle 11, pull the handle and the gear box 9 bevel limit backward (toward the air source), the handle drives the dial 10 to rotate around the positioning pin 31, meshing with the rack ring, and drives the main valve core group 28 to move to the left (toward the air receiving equipment) through the force transmission block 12 until it is in place. When the main valve core group moves to the left, the energy storage sealing ring B and the energy storage sealing ring C generate friction. Under the joint push of the rebound force of the valve core reset power member (reset spring) 23, the movable valve core group moves to the left. The closing process is as follows Figure 2 and Figure 4 As shown, in this state, Figure 3 As shown, high-pressure gas enters the inclined hole of the drainage cover through the high-pressure hose and the air inlet interface pipe, then enters the small gap ring hole between the drainage cover 22 and the movable valve core seat 17, and then enters the pilot groove and the gap between the movable valve core cover 21 and the drainage cover 22 to form a high-pressure chamber; at the same time, as shown in FIG. Figure 5 As shown, the gas in the inner cavity of the main valve core group 28 and at both ends enters the exhaust channel of the intake and exhaust seat sleeve through the middle pore 107, pushes open the exhaust valve core 27 and the exhaust valve core spring 26 of the exhaust valve, and enters the exhaust pipe 25 for exhaust and pressure relief. At this time, if the controller is connected to the air receiving equipment interface, the one-way valve in the air receiving equipment will be closed because the internal pressure is higher than the input end pressure, and the internal gas at the input end will be exhausted and pressure relieved through the exhaust pipe 25; at this time, if the controller is not connected to the air receiving equipment interface, the inflation nozzle 5 will contact the O-ring in the sealing sleeve 4 under the force of the inflation nozzle spring 30 to form a seal, and the internal gas will be exhausted and pressure relieved through the exhaust pipe 25. In the above case, the rear part of the movable valve core cover 21 is in the high-pressure chamber and the pressure relief chamber, which generates a forward thrust. Under the joint push of the rebound force of the valve core reset power member (reset spring) 23, the movable valve core assembly moves to the left until the sealing surface of the main valve sealing gasket 16 contacts and deforms with the main sealing seat 15, sealing the high-pressure gas, thereby realizing the closed state of the controller. The fully closed state is shown in the schematic diagram. Figure 4 and Figure 5 shown.

[0091] The ventilation stage is to allow the gas source to enter the gas receiving equipment from the controller. The specific process is:

[0092] Holding the upper part of the handle 11, push the handle forward and rotate it with the inclined limit of the gear box 9. The handle drives the shift bar 10 to rotate around the positioning pin 31 and engage with the rack ring 8. The main valve core assembly 28 is driven to move to the right (towards the direction of the air source) through the force transmission block 12 until it contacts the bottom surface of the inner cavity of the main valve movable core cover 21. The opening process is shown in the figure. Figure 6 and Figure 7 As shown;

[0093] In this state, if Figure 7 As shown, the high-pressure gas is connected to the air inlet interface pipe 24 through a high-pressure hose, enters the inclined hole of the drainage cover 22, and then enters the small gap annular hole between the drainage cover 22 and the movable valve core seat 17, and then enters the pilot groove and the gap between the movable valve core cover 21 and the drainage cover 22 and the energy storage sealing ring B18 and the energy storage sealing ring C20 and the annular gap of the outer cylindrical surface of the small end of the rear part of the main valve core group 28, and then flows into the valve core main flow channel of the main valve core group 28 through the drainage hole, and a decompression chamber is formed in the space behind the small gap annular hole of the movable valve core seat 17.

[0094] At this point, the outer cylindrical surface of the main valve core assembly 28 contacts and seals the energy storage seal ring A14 and the energy storage seal ring D29, forming a sealed channel. At this point, if the controller is connected to the gas receiving equipment interface, the one-way valve in the gas receiving equipment will close because the internal pressure is higher than the input pressure. Once the internal gas pressure at the input increases, the one-way valve will open to add gas.

[0095] At this time, if the controller is not connected to the air receiving equipment, the inflation nozzle 5 contacts the O-ring in the sealing bushing 4 under the force of the inflation nozzle spring 30 to form a seal.

[0096] In the above situation, people Figure 7 As shown, when the drainage cover continues to pass gas, the movable valve core seat 17 is in the pressure difference between the high-pressure chamber and the decompression chamber, which produces a rightward thrust. Under the joint push of the handle thrust, the rebound force of the valve core reset power member (reset spring) 23 is overcome, and the movable valve group moves right to the main valve sealing gasket 16. The sealing surface of the main valve sealing gasket is disengaged from the main sealing seat 15, thereby realizing the controller opening state. The fully open state is shown in the figure Figure 8 and Figure 9 shown.

[0097] The utility model is used to control high-pressure and high-flow gas. After the valve core is reasonably improved, the pilot flow channel is used to assist the movement of the valve core with the help of the pressure difference at both ends of the valve core, thereby realizing safe and reliable control of high-pressure and high-flow gas. After the valve core is improved, it is easier for workers to control high-pressure and high-flow gas, and the use is also safer and more controllable.

[0098] The above description of the disclosed embodiments will enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A high-pressure gas high-flow rapid filling interface controller, including an air inlet interface pipe, characterized by: A main valve core group and a movable valve core group are installed in the air intake interface pipe. A main sealing seat is installed in the air inlet interface pipe, and the main valve core group passes through the main sealing seat; The main valve core assembly is provided with a valve core main flow channel and a gas channel, and the high-pressure gas is diverted through the airflow interface pipe and then enters the valve core main flow channel through the gas channel; The movable valve core assembly is movably sleeved on one end of the main valve core assembly and is located in the air inlet interface pipe. A main valve sealing gasket is installed on the movable valve core assembly, and the flow rate of the gas channel is controlled by the contact degree between the main valve sealing gasket and the main sealing seat; The movable valve core assembly is provided with a pilot flow channel, which guides the pilot gas to flow away from the main sealing seat and then merges into the valve core main flow channel. The pilot gas is a part of the gas diverted from the air inlet interface pipe to the front of the main valve core assembly.

2. A high-pressure gas large-flow rapid filling interface controller according to claim 1, characterized in that: A flow guide cover is installed in the air inlet interface pipe, the movable valve core group is movably installed in the flow guide cover, and a valve core reset power component is installed between the inner end of the flow guide cover and the end surface of the movable valve core group.

3. A high-pressure gas large-flow rapid filling interface controller according to claim 2, characterized in that: The movable valve core assembly includes a movable valve core seat and a movable valve core cover, and the main valve sealing gasket is installed at the end of the movable valve core seat; The movable valve core seat has a valve core cavity with a central hole, the front part of the movable valve core cover is connected to the valve core cavity, and a pilot groove independent of the valve core cavity is provided at the connecting part of the movable valve core cover and the movable valve core seat, and the air inlet end of the pilot groove is a small gap annular hole formed between the movable valve core seat and the guide cover; A drainage hole is provided between the pilot groove and the valve core cavity to connect the pilot groove and the valve core cavity; One end of the main valve core assembly passes through the valve core cavity and extends to the movable valve core cover; The small gap annular hole, the pilot groove and the drainage hole constitute the pilot flow channel.

4. A high-pressure gas large-flow rapid filling interface controller according to claim 3, characterized in that: The drainage hole is opened in the drainage spacer, and the drainage spacer is installed in the valve core cavity and is fixed by a pressing force given by a movable valve core cover.

5. The high-pressure gas large-flow rapid filling interface controller according to claim 3, characterized in that: The main valve core group is provided with an exhaust component, which includes an exhaust seat sleeve, an exhaust valve and an exhaust pipe; The exhaust seat sleeve is installed on the main valve core assembly and has an exhaust channel in the exhaust seat sleeve. When the main valve core assembly moves to a specified position, the valve core main flow channel of the main valve core assembly is connected to the exhaust channel. The exhaust pipe is installed on the exhaust seat sleeve through an exhaust valve and is communicated with the exhaust passage.

6. A high-pressure gas high-flow rapid filling interface controller according to any one of claims 1 to 5, characterized in that: The main valve core group is equipped with a drive assembly, which includes: an intermediate connecting pipe, a rack ring and a shift bar; The intermediate connecting pipe is connected to the air inlet interface pipe, and the main valve core group is located in the intermediate connecting pipe; The rack ring is rotatably mounted on the main valve core assembly, and an axial force transmission block is radially mounted between the rack ring and the main valve core assembly, and a ring groove for mounting the force transmission block is formed in the rack ring; The shift bar is rotatably installed via a pin shaft, and one end of the shift bar is meshed with the rack ring for transmission.

7. A high-pressure gas large-flow rapid filling interface controller according to claim 6, characterized in that: A mounting portion for mounting a rack ring is provided on the main valve core assembly, and a groove for mounting a force transmission block is formed on the mounting portion.

8. The high-pressure gas large-flow rapid filling interface controller according to claim 6, characterized in that: A gear box is installed on the intermediate connecting pipe, the pin shaft is installed on the gear box, and a handle is installed on the shift bar. The handle, shift bar, gear box and rack ring rotate synchronously with the axis of the main valve core group.

9. A high-pressure gas high-flow rapid filling interface controller according to any one of claims 1-5, 7, and 8, characterized in that: The main valve core assembly includes a main valve core, a main valve core small diameter sleeve and a fastening sleeve. The main valve core includes a large diameter portion and a small diameter portion, wherein the small diameter portion is inserted into the movable valve core group, and an inclined gas channel is opened at the transition between the large diameter portion and the small diameter portion; The main valve core small diameter sleeve is sleeved on the small diameter part of the main valve core, the fastening sleeve is connected to the front end of the small diameter part and presses the main valve core small diameter sleeve tightly, the main valve core small diameter sleeve is provided with a gas passage, and the main valve core small diameter sleeve and the gas passage of the main valve core are connected; A gap channel is provided between the main valve core small diameter sleeve and the small diameter portion of the main valve core. One end of the gap channel is communicated with the pilot flow channel, and the other end is communicated with the valve core main flow channel after passing through the gas channel.

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