70MPa hydrogen fuel mobile power supply bottleneck valve

Abstract

The invention belongs to the technical field of valves, and particularly relates to a 70MPa hydrogen fuel mobile power supply bottleneck valve. Comprising a shell, a secondary pressure reducing device is installed on the upper portion of the shell, an outlet quick plug is installed on the end face of the secondary pressure reducing device, a bottle opening is formed in the lower portion of the shell, a plurality of cavities are formed in the side face of the shell, a TPRD assembly and an inflation valve are installed in the cavities in one side of the shell, and a stop valve is installed on one side, adjacent to the side provided with the TPRD assembly and the inflation valve, of the shell. A pressure sensor and an overpressure release valve are installed on the other side, adjacent to the side where the TPRD assembly and the inflation valve are installed, of the shell, and a first-stage pressure reducing device is installed on the side, opposite to the side where the TPRD assembly and the inflation valve are installed, of the shell. The system has the beneficial effects that the functions of an inflation one-way valve, an overtemperature relief device, an overpressure relief device, a manual switch, two-stage pressure reduction and the like are integrated, the system is matched with a hydrogen cylinder with higher pressure, the endurance time of the system is prolonged, and the weight of each functional pipeline and valve is reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of valves, and in particular relates to a 70MPa hydrogen fuel mobile power bottle mouth valve. Background Art

[0002] The low-pressure stop valves currently used in the existing hydrogen energy system have many internal parts, which are complicated, and the installation method is basically fixed through the plate, which is not conducive to practical use. At the same time, there are also problems such as unstable first-level locking pressure, small spring cavity, and small range of spring selection. Summary of the invention

[0003] The purpose of the present invention is to provide a 70MPa hydrogen fuel mobile power bottle mouth valve, which has a simple structure, can better save costs, and is more convenient to install.

[0004] The technical solution of the present invention is as follows: a 70MPa hydrogen fuel mobile power bottle mouth valve comprises a shell, a secondary pressure reducing device is installed on the upper part of the shell, an outlet quick plug is installed on the end face of the secondary pressure reducing device, the lower part of the shell is a bottle mouth, a plurality of cavities are opened on the side of the shell, a TPRD component and an inflation valve are respectively installed in the cavities on one side of the shell, a stop valve is installed on one side of the shell adjacent to the side where the TPRD component and the inflation valve are installed, a pressure sensor and an overpressure relief valve are installed on the other side of the shell adjacent to the side where the TPRD component and the inflation valve are installed, and a primary pressure reducing device is installed on one side of the shell opposite to the side where the TPRD component and the inflation valve are installed.

[0005] Preferably, the shell has multiple cavities, and an inflation valve is installed in a cavity in the upper part thereof. The inflation valve includes an inflation nut, an inflation rod, an inflation gasket, a first filter, an inflation joint, an inflation valve seat, an inflation valve core and an inflation valve spring. The inflation nut is connected in the cavity, a through hole is opened in the middle of the inflation nut, a hollow inflation rod is installed in the through hole, the head of the inflation rod is covered with an inflation gasket, the head of the inflation rod covered with the inflation gasket is covered with an inflation joint, the inflation joint has a cavity inside, a first filter is arranged below the head of the inflation rod, the first filter is located in a cavity inside the inflation joint, the inflation joint is connected in the cavity, an inflation valve seat is arranged below the inflation joint, an inflation valve core is arranged below the inflation valve seat, an inflation valve spring is arranged below the inflation valve core, and the inflation valve core and the inflation valve spring are tightly fitted to the cavity wall.

[0006] Preferably, a TPRD assembly 102 is installed in a cavity at the upper part of the shell, and the TPRD assembly 102 includes a disc spring, a plunger, a glass bulb and a cap. The plunger is installed in the cavity, and the plunger fits tightly against the cavity wall. The plunger is a columnar structure with two different diameters. A stepped blind hole is opened inside the part with a larger diameter of the plunger, and a disc spring is arranged at the lower part of the part with a larger diameter of the plunger. The disc spring is sleeved outside the part with a smaller diameter of the plunger, and the disc spring is located between the lower part of the part with a larger diameter of the plunger and the cavity of the shell. The cap is connected to the cavity opening of the shell, and the cap has a blind hole. The glass bulb is arranged between the blind hole of the cap and the blind hole of the plunger. A through hole is opened on the shell at the side end surface of the plunger, and the through hole can connect the outside of the shell with the side end surface of the cavity where the plunger is installed.

[0007] Preferably, a pressure sensor is installed in a cavity of the shell, the pressure sensor is a stepped columnar structure, and the part of the pressure sensor extending into the shell cavity is tightly fitted with the cavity wall.

[0008] Preferably, a stop valve is installed in a cavity of the shell, and the stop valve includes a stop valve core, a stop valve stem, a stop nut, a stop screw and a handle. The stop nut is connected to the cavity, a through hole is opened inside the stop nut, the stop valve stem passes through the through hole in the middle of the stop nut, a blind hole is opened at the head of the stop valve stem, a columnar stop valve core is installed in the blind hole, a channel parallel to the axis is opened in the middle position of the axis of the stop valve stem, one end of the channel is communicated with the blind hole at the head of the stop valve stem, a channel perpendicular to the axis is opened at the end of the stop valve stem, a columnar stop screw is installed in the channel, a handle is sheathed on the end of the stop valve, and the stop screw passes through the side wall of the handle at the same time.

[0009] Preferably, an overpressure relief valve is arranged in a cavity of the shell, the overpressure relief valve comprises a safety valve, a safety valve spring, a valve core sleeve and a safety valve core, the safety valve is a bolt-like structure, and its rod-like portion is connected to the cavity, a blind hole is opened in the safety valve, a columnar valve core sleeve is installed in the blind hole, a cylindrical cavity is provided in the valve core sleeve, one end of the valve core sleeve is open, and the other end of the valve core sleeve is provided with a through hole, the safety valve core is a columnar cavity with different diameters, and its head with a smaller diameter passes through the through hole at one end of the valve core sleeve, the larger diameter portion of the safety valve core is arranged in the cavity of the valve core sleeve, and the safety valve spring is arranged between the inner end surface of the safety valve and the safety valve core.

[0010] Preferably, the bottle mouth at the lower part of the shell is a columnar structure, a bell mouth is formed at the end of the bottle mouth, a second filter is installed at the bell mouth, and a blind hole is formed in the bottle mouth.

[0011] Preferably, a first-level pressure reducing device is installed in a cavity of the shell, and the first-level pressure reducing device includes a first-level end cover, a first-level spring, a first-level valve stem, a first-level valve core and a valve core pressure ring, wherein the end cover is connected to the cavity, and a first-level valve stem is arranged in the cavity of the shell inside the end cover, the first-level valve stem is a bolt-like structure, the first-level valve stem is divided into a rod-like part and an end part, a first-level spring is sleeved in the middle of the rod-like part of the first-level valve stem, one end of the first-level spring abuts against the cavity wall of the shell, one end of the first-level spring abuts against the end of the first-level valve stem, a stepped through hole is opened in the middle of the first-level valve stem, a first-level valve core is arranged in the cavity inside the first-level valve stem, a valve core pressure ring is sleeved on the first-level valve core, and the valve core pressure ring fits tightly against the inner wall of the cavity.

[0012] Preferably, the top of the shell has a flange-shaped interface, and a secondary pressure-reducing device is installed in the interface, and the secondary pressure-reducing device includes a secondary valve sleeve, a secondary valve core, a secondary spring, a secondary valve stem, a spring blind head, a small spring, a guide ring, a spring retaining ring, a quick-insert valve seat, a secondary outlet and a large spring, wherein the secondary valve sleeve is installed in the flange-shaped interface, the secondary valve sleeve is a columnar structure, one end of which is open, and the other end of the secondary valve sleeve has a closed end surface with a through hole in the middle, and the middle of the secondary valve sleeve has a cylindrical structure, the secondary valve stem has a T-shaped cross-section structure with a rod-shaped head and an end, the head of the secondary valve stem is inserted into the cylindrical structure in the middle of the secondary valve sleeve, the secondary valve stem has a through hole, and its rod-shaped head has a cavity, and the secondary valve core is installed in the cavity, the secondary A secondary outlet is arranged on the upper part of the valve stem. The secondary outlet is a columnar structure with an annular outer protrusion in the middle. A bottle-shaped through hole is opened in the middle of the secondary outlet. An annular spring plug is installed in the through hole. A one-way valve core is installed on the upper part of the through hole. A small spring is arranged between the one-way valve core and the spring plug. An outlet quick plug is arranged on the outer side of the upper part of the secondary outlet. The outlet quick plug includes an outlet female head. The outlet female head is arranged on the outer side of the upper part of the secondary outlet. The outlet female head has an annular outer protrusion. A through hole is opened in the middle of the outlet female head. The upper part of the one-way valve core is inserted into the through hole of the outlet female head. A plugging cap is connected to the upper through hole of the outlet female head. A small spring is arranged between the lower part of the plugging cap and the upper part of the one-way valve core. The outlet female head has a horizontal through hole perpendicular to the axis, and the through hole runs through the outlet female head.

[0013] Preferably, a quick-insert valve seat is mounted on the outer card of the flange-shaped interface above the shell, the quick-insert valve seat is open at one end and has an annular outer protrusion at the other end, the outer protrusion of the quick-insert valve seat is connected to the outer protrusion of the outlet female head, the outlet female head is sleeved on the outer side of the upper part of the secondary outlet and a large spring is arranged, the upper part of the flange-shaped interface above the shell is located inside the quick-insert valve seat and a guide ring is installed, a spring retaining ring is sleeved inside the guide ring, and the spring retaining ring is sleeved outside the large spring.

[0014] The beneficial effects of the present invention are: the present invention integrates functions such as an inflation check valve, an over-temperature relief device, an over-pressure relief device, a manual switch, and a two-stage pressure reduction, matches a higher-pressure hydrogen cylinder, increases the system's endurance, and reduces the weight of each functional pipeline and valve. The interior adopts a glass bead structure, which will automatically break when the temperature reaches 110°C; the outlet adopts a blind plug structure to achieve compact and portable use of gas cylinders; an over-pressure relief valve enhances safety of use; reduces the installation and testing space required for charging and discharging 70MPa hydrogen cylinders, reduces the weight of system integration, and reduces procurement costs; the present invention can adapt to larger flow requirements and can cover more application scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is an overall schematic diagram of the 70MPa hydrogen fuel mobile power bottle valve provided by the present invention; Figure 2 This is a cross-sectional view from the first perspective of the bottle mouth valve of the 70MPa hydrogen fuel mobile power supply provided by the present invention; Figure 3 This is a cross-sectional view from a second perspective of the 70MPa hydrogen fuel mobile power bottle valve provided by the present invention.

[0016] In the figure: 1 housing, 2 inflation nut, 3 inflation rod, 4 inflation gasket, 5 first filter, 6 inflation connector, 7 inflation valve seat, 8 inflation valve core, 9 inflation valve spring, 10 pressure sensor, 11 first opening retaining ring, 12 first O-ring, 13 safety valve, 14 safety valve spring, 15 valve core sleeve, 16 safety valve core, 17 Stop valve core, 18 second O-ring, 19 stop valve stem, 20 stop nut, 21 stop screw, 22 handle, 23 third O-ring, 24 second opening retaining ring, 25 disc spring, 26 plunger, 27 glass bulb, 28 cap, 29 primary end cover, 30 fourth O-ring, 31 fifth O-ring, 32 third opening retaining ring, 33 primary spring, 34 primary valve stem, 35 fourth opening retaining ring, 36 sixth O-ring, 37 primary valve core, 38 valve core pressure ring, 39 second filter disc, 40 sixth O-ring, 41 fifth opening retaining ring, 42 seventh O-ring, 43 sixth opening retaining ring, 44 eighth O-ring, 45 secondary valve sleeve, 46 secondary valve Core, 47 secondary spring, 48 ninth O-ring, 49 secondary valve stem, 50 tenth O-ring, 51 eleventh O-ring, 52 spring plug, 53 small spring, 54 guide ring, 55 spring retaining ring, 56 quick-insert valve seat, 57 secondary outlet, 58 twelfth O-ring, 59 large spring, 60 thirteenth O-ring, 61 fourteenth O-ring, 62 one-way valve core, 63 outlet female head, 64 fifteenth O-ring, 65 plugging cap, 101 outlet quick plug, 102 TPRD assembly, 103 charging valve, 104 pressure sensor, 105 bottle mouth, 106 overpressure relief valve, 107 primary pressure reducing device, 108 stop valve, 109 secondary pressure reducing device. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0018] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, in the description of the present invention, "first", "second", "third", "fourth" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0019] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection, a mechanical connection, an electrical connection, a direct connection, or a connection through an intermediate medium, or the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. The meaning of "multiple" in the present invention is two or more, unless otherwise clearly and specifically limited.

[0020] like Figure 1 As shown, a 70MPa hydrogen fuel mobile power bottle mouth valve comprises a shell 1, which is a block structure, a secondary pressure reducing device 109 is installed on the upper part of the shell 1, an outlet quick plug 101 is installed on the end face of the secondary pressure reducing device 109, a bottle mouth 105 is formed at the lower part of the shell 1, a plurality of cavities are opened on the side of the shell 1, a TPRD component 102 and a charging valve 103 are respectively installed in the cavities on one side of the shell 1, a stop valve 108 is installed on the side of the shell 1 adjacent to the side where the TPRD component 102 and the charging valve 103 are installed, a pressure sensor 10 and an overpressure relief valve 106 are installed on the other side of the shell 1 adjacent to the side where the TPRD component 102 and the charging valve 103 are installed, and a primary pressure reducing device 107 is installed on the side of the shell 1 opposite to the side where the TPRD component 102 and the charging valve 103 are installed.

[0021] like Figure 2As shown, the housing 1 has a plurality of columnar cavities, and an inflation valve 103 is installed in a cavity at the upper portion thereof. The inflation valve 103 includes an inflation nut 2, an inflation rod 3, an inflation gasket 4, a first filter 5, an inflation joint 6, an inflation valve seat 7, an inflation valve core 8 and an inflation valve spring 9. The inflation nut 2 is connected in the cavity by a thread, a through hole is opened in the middle of the inflation nut 2, a hollow inflation rod 3 is installed in the through hole, and the head of the inflation rod 3 is covered with an inflation gasket 4, which is covered with an inflation gasket ring The head of the inflation rod 3 of 4 is covered with an inflation joint 6, and the inflation joint 6 has a cavity inside. A first filter plate 5 is arranged below the head of the inflation rod 3, and the first filter plate 5 is located in a cavity inside the inflation joint 6. The inflation joint 6 is connected in the cavity by threads, and an inflation valve seat 7 is arranged below the inflation joint 6. An inflation valve core 8 is arranged below the inflation valve seat 7, and an inflation valve spring 9 is arranged below the inflation valve core 8. The inflation valve core 8 and the inflation valve spring 9 are tightly fitted with the cavity wall.

[0022] A TPRD assembly 102 is installed in a cavity at the upper part of the housing 1. The TPRD assembly 102 includes a third O-ring 23, a second open retaining ring 24, a disc spring 25, a plunger 26, a glass bulb 27 and a cap 28. The plunger 26 is installed in the cavity. The plunger 26 fits tightly with the cavity wall. The plunger 26 is a columnar structure with two different diameters. A groove is opened on the head of the smaller diameter portion. The third O-ring 23 and the second open retaining ring 24 are installed in the groove. The larger diameter portion of the plunger 26 has a stepped inner portion. Blind hole, a disc spring 25 is arranged at the lower part of the part with larger diameter of the plunger 26, and the disc spring 25 is sleeved outside the part with smaller diameter of the plunger 25. The disc spring 25 is located between the lower part of the part with larger diameter of the plunger 26 and the cavity of the shell 1. The cap 28 is connected to the cavity mouth of the shell 1 through a threaded structure. The cap 28 has a blind hole. The glass bulb 27 is arranged between the blind hole of the cap 28 and the blind hole of the plunger 26. A through hole is opened on the shell 1 at the side end face of the plunger 26, and the through hole can connect the outside of the shell 1 with the side end face of the cavity where the plunger 26 is installed.

[0023] A cavity is opened on the side of the shell 1 near the inflation valve 103, and a pressure sensor 10 is installed in the cavity. The pressure sensor 10 is a stepped columnar structure, and a groove is opened on the head with a smaller diameter of the pressure sensor 10. A first opening retaining ring 11 and a first O-ring 12 are installed in the groove. The part of the pressure sensor 10 extending into the cavity of the shell 1 fits tightly with the cavity wall.

[0024] A cavity is formed on the side of the housing 1 near the TPRD assembly 102, and a stop valve 108 is installed in the cavity. The stop valve 108 includes a stop valve core 17, a second O-ring 18, a stop valve stem 19, a stop nut 20, a stop screw 21 and a handle 22. The stop nut 20 is connected to the cavity through a threaded structure. A through hole is formed inside the stop nut 20. The stop valve stem 19 passes through the through hole in the middle of the stop nut 20. A blind hole is formed on the head of the stop valve stem 19. A columnar stop valve core 17 is installed, a groove is opened on the outer side of the head of the stop valve stem 19, a second O-ring 18 is installed in the groove, a channel parallel to the axis is opened in the middle position of the axis of the stop valve stem 19, one end of the channel is connected to the blind hole of the head of the stop valve stem 19, a channel perpendicular to the axis is opened at the end of the stop valve stem 19, a columnar stop screw 21 is installed in the channel, a handle 22 is sheathed on the end of the stop valve stem 19, and the stop screw 21 passes through the side wall of the handle 22 at the same time.

[0025] An overpressure relief valve 106 is arranged in a cavity of the shell, and the overpressure relief valve 106 includes a safety valve 13, a safety valve spring 14, a valve core sleeve 15 and a safety valve core 16. The safety valve 13 is a bolt-like structure, and its rod-like part is connected to the cavity by a thread. A blind hole is opened in the safety valve 13, and a columnar valve core sleeve 15 is installed in the blind hole. The valve core sleeve 15 has a cylindrical cavity, one end of the valve core sleeve 15 is open, and the other end of the valve core sleeve 15 is opened. The safety valve core 16 is a columnar cavity with different diameters, and its head with a smaller diameter passes through the through hole at one end of the valve core sleeve 15. The larger diameter part of the safety valve core 16 is arranged in the cavity of the valve core sleeve 15, and the safety valve spring 14 is arranged between the inner end surface of the safety valve 13 and the safety valve core 16.

[0026] A first-stage pressure reducing device 107 is installed in a cavity of the housing 1 .

[0027] Among them, the cavity in the shell 1 in which the pressure sensor 10 is installed is connected with the cavity in which the inflation valve 103, the TPRD component 102, and the first-stage pressure reducing device 107 are installed through channels, and the cavity in the shell 1 in which the first-stage pressure reducing device 107 is installed is connected with the cavity in which the overpressure relief valve 106 and the stop valve 108 are installed through channels, respectively. The head of the stop valve core 17 of the stop valve 108 can block the channel between the cavity in which the first-stage pressure reducing device 107 is installed and the cavity in which the stop valve 108 is installed.

[0028] like Figure 3As shown, the bottle mouth 105 at the lower part of the shell 1 is a cylindrical structure, and two grooves are opened at its head. The sixth O-ring 40 and the fifth opening retaining ring 41 are installed in the groove near the bottom, and the seventh O-ring 42 and the sixth opening retaining ring 43 are arranged in the other groove. A bell mouth is opened at the end of the bottle mouth 105, and a second filter 39 is installed at the bell mouth. A blind hole is opened in the bottle mouth 105.

[0029] A first-stage pressure reducing device 107 is installed in a cavity of the housing 1. The first-stage pressure reducing device 107 includes a first-stage end cover 29, a fourth O-ring 30, a fifth O-ring 31, a third open retaining ring 32, a first-stage spring 33, a first-stage valve stem 34, a fourth open retaining ring 35, a sixth O-ring 36, a first-stage valve core 37 and a valve core pressing ring 38, wherein the end cover 29 is connected to the cavity through a threaded structure, a groove is formed on the end cover 29, a fourth O-ring 30 is installed in the groove, and the fourth O-ring 30 is located between the end cover 29 and the cavity, and a first-stage valve stem 34 is arranged in the cavity of the housing 1 inside the end cover 29, and the first-stage valve stem 34 is a bolt-like structure. The first-stage valve stem 34 can be divided into The rod-shaped portion and the end portion, the head portion of the rod-shaped portion of the first-level valve stem 34 is provided with a groove, and the fourth open retaining ring 35 and the sixth O-ring 36 are arranged in the groove, the middle portion of the rod-shaped portion of the first-level valve stem 34 is covered with a first-level spring 33, one end of the first-level spring 33 abuts against the cavity wall of the shell 1, and one end of the first-level spring 33 abuts against the end portion of the first-level valve stem 34, the end portion of the first-level valve stem 34 is provided with a groove, and the fifth O-ring 31 and the third open retaining ring 32 are arranged in the groove, a stepped through hole is provided in the middle of the first-level valve stem 34, a first-level valve core 37 is arranged in the cavity inside the first-level valve stem 34, a valve core pressure ring 38 is sheathed on the first-level valve core 37, and the valve core pressure ring 38 is tightly fitted with the inner wall of the cavity.

[0030] The cavity on the housing 1 where the first-stage pressure reducing device 107 is installed is connected to the blind hole of the bottle mouth 105 through a channel.

[0031] The top of the housing 1 has a flange-shaped interface, in which a secondary pressure reducing device 109 is installed. The secondary pressure reducing device 109 includes an eighth O-ring 44, a secondary valve sleeve 45, a secondary valve core 46, a secondary spring 47, a ninth O-ring 48, a secondary valve stem 49, a tenth O-ring 50, an eleventh O-ring 51, a spring plug 52, a small spring 53, a guide ring 54, a spring retaining ring 55, a quick-insert valve seat 56, a secondary outlet 57, a twelfth O-ring 58, a large spring 59, a thirteenth O-ring 60 and a fourteenth O-ring 61, wherein the secondary valve sleeve 45 is installed in the flange-shaped interface, and the secondary valve sleeve 45 is a columnar structure with an open end and a closed end surface at the other end of the secondary valve sleeve. A through hole is opened in the middle, a groove is opened on the head of the secondary valve sleeve 45, an eighth O-ring 44 is installed in the groove, a cylindrical structure is provided in the middle of the secondary valve sleeve 45, the secondary valve stem 49 is a structure with a T-shaped cross section and a rod-shaped head and end, a groove is opened in the middle of the rod-shaped part of the secondary valve stem 49, a ninth O-ring 48 is arranged in the groove, a groove is opened at the end of the secondary valve stem 49, a tenth O-ring 50 is arranged in the groove, the head of the secondary valve stem 49 is inserted into the cylindrical structure in the middle of the secondary valve sleeve 45, a through hole is opened on the secondary valve stem 49, a cavity is opened on the rod-shaped head, a secondary valve core 46 is installed in the cavity, and the secondary valve core 46 can block the through hole in the middle of the end face of the secondary valve sleeve 45, The large through hole on the end face of the secondary valve sleeve 45 is sealed by an O-ring 51 and the secondary outlet, and is also communicated with the spring bulkhead.

[0032] The upper part of the secondary valve stem 49 is provided with a secondary outlet 57, which is a columnar structure with an annular outer protrusion in the middle. A bottle-shaped through hole is opened in the middle of the secondary outlet 57, and an annular spring plug 52 is installed in the through hole. A one-way valve core 62 is installed in the upper part of the through hole, and a small spring 53 is arranged between the one-way valve core 62 and the spring plug 52. A groove is opened on the secondary outlet 57 below the annular outer protrusion, and an eleventh O-ring 51 is installed in the groove. The secondary outlet 57 has two grooves at the end above the annular outer protrusion, and the thirteenth O-ring 60 and the fourteenth O-ring 61 are installed in the two grooves respectively. The outer side of the upper part of the secondary outlet 57 is provided with an outlet quick plug 101, and the outlet quick plug includes an outlet female head 63, which is provided on the outer side of the upper part of the secondary outlet 57. The outlet female head 63 has an annular outer protrusion, and a through hole is provided in the middle of the outlet female head 63. The upper part of the one-way valve core 62 is inserted into the outlet. In the through hole of the outlet female connector 63, a groove is formed on the upper part of the one-way valve core 62, and a twelfth O-ring 58 is arranged in the groove. The plugging cap 65 is connected to the upper through hole of the outlet female connector 63 through a threaded structure. The plugging cap 65 is formed with a groove, and a fifteenth O-ring 64 is arranged in the groove. A small spring 53 is arranged between the lower part of the plugging cap 65 and the upper part of the one-way valve core 62. The outlet female connector 63 is formed with a horizontal through hole perpendicular to the axis, and the through hole passes through the outlet female connector 63. The upper flange of the housing 1 The quick-insertion valve seat 56 is mounted on the outer card of the flange-shaped interface. The quick-insertion valve seat 56 has an opening at one end and an annular outer protrusion at the other end. The outer protrusion of the quick-insertion valve seat 56 is connected to the outer protrusion of the outlet female head 63. The outlet female head 63 is sleeved on the outer side of the upper part of the secondary outlet 57 and a large spring 59 is arranged. The upper part of the flange-shaped interface above the shell 1 is located inside the quick-insertion valve seat 56 and a guide ring 54 is installed. A spring retaining ring 55 is sleeved inside the guide ring 54, and the spring retaining ring 55 is sleeved outside the large spring 59.

[0033] The installation process of the present invention is as follows: Put the inflation valve spring 9 and the inflation valve core 8 into the housing 1, install the inflation valve seat 7 and the first filter 5 into the inflation joint 6, and then connect with the housing 1 through threads, the inflation rod 3 and the inflation cushion ring 4 are connected through threads, and then the inflation nut 2 is inserted and connected with the housing 1 through threads, the first O-ring 12 and the first retaining ring 11 are installed on the pressure sensor 10, and then connected with the housing 1 through threads, the safety valve spring 14, the valve core sleeve 15 and the safety valve core 16 are placed in the safety valve, and connected with the housing 1 through threads, the stop valve core 17 and the second O-ring 18 are installed on the stop valve stem 19, connected with the stop nut 20 through a thread, and then connected with the housing 1 through a thread, the handle 22 is installed together with the stop valve stem 19 through the stop screw 21, the third O-ring 23, the second open retaining ring 24 and the disc spring 25 are installed on the plunger 26, pressed into the housing 1, and the glass bulb 27 is placed, and then the cap 28 is connected with the housing 1 through a thread, the first-level valve core 37, the valve core pressure ring 38, the sixth O-ring 36, the fourth open retaining ring 35, the fifth O-ring 31, the third open retaining ring 32 and the first-level spring 33 are installed on the first-level valve stem 34, put into the housing 1, and the fourth The O-ring 30 is installed on the primary end cover 29 and connected to the housing 1 through threads. The sixth open retaining ring 43, the seventh O-ring 42, the fifth open retaining ring 41, the sixth O-ring 40 and the filter are installed on the housing 1. The eighth O-ring 44 is installed on the secondary valve sleeve 45 and pressed into the housing 1. The secondary valve core 46, the ninth O-ring 48, the tenth O-ring 50 and the secondary spring 47 are installed on the secondary valve stem 49 and placed in the secondary valve sleeve 45. The twelfth O-ring 58 is installed on the one-way valve core 62 and placed in the secondary outlet 57 together with the small spring 53. The spring plug is threaded. It is connected to the secondary outlet 57, the eleventh O-ring 51, the thirteenth O-ring 60 and the fourteenth O-ring 61 are installed on the secondary outlet 57, and are connected to the housing 1 through threads. The quick-insert valve seat 56 is installed on the housing 1 with serrated offset, the guide ring 54 is installed on the spring retaining ring 55, and the large spring 59 is placed in the quick-insert valve seat 56, the twelfth O-ring 58 is installed on the one-way valve core 62, and the small spring 53 is placed in the outlet female head 63, the fifteenth O-ring 64 is installed on the plug cap 65, and is connected to the outlet female head 63 through threads, and the outlet female head 63 is connected to the quick-insert valve seat through a stop screw.

[0034] The characteristics of the present invention are: The present invention integrates functions such as an inflation valve, a TPRD, a high-pressure pressure sensor, a stop valve, a first-stage pressure reduction, an overpressure relief valve, a second-stage pressure reduction, and an outlet quick plug.

[0035] The present invention is a highly integrated high-pressure valve, which greatly saves space when in use. The inflation valve adopts a one-way structure, which opens automatically during inflation. After inflation, the upstream pipeline can be removed without discharge, and it is easy to use and operate. The TPRD contains a glass bulb, which will automatically burst when the temperature reaches about 110°C, and the high-pressure gas will be discharged through a small hole, thereby improving the safety of the valve. The high-pressure pressure sensor can monitor the pressure parameters of the gas in the bottle in real time. The stop valve is used for the switch of the outlet. The overpressure relief valve discharges the overpressure gas if an abnormality occurs during the first-stage decompression.

[0036] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. 70MPa hydrogen fuel mobile power bottle valve, characterized by: The invention comprises a shell, wherein a secondary pressure reducing device is installed on the upper part of the shell, an outlet quick plug is installed on the end surface of the secondary pressure reducing device, the lower part of the shell is a bottle mouth, a plurality of cavities are opened on the side of the shell, a TPRD component and an inflation valve are respectively installed in the cavities on one side of the shell, a stop valve is installed on the side of the shell adjacent to the side where the TPRD component and the inflation valve are installed, a pressure sensor and an overpressure relief valve are installed on the other side of the shell adjacent to the side where the TPRD component and the inflation valve are installed, and a primary pressure reducing device is installed on the side of the shell opposite to the side where the TPRD component and the inflation valve are installed.

2. The 70MPa hydrogen fuel mobile power supply bottle mouth valve according to claim 1, characterized in that: The shell body is provided with multiple cavities, and an inflation valve is installed in a cavity in the upper part thereof. The inflation valve comprises an inflation nut, an inflation rod, an inflation gasket, a first filter, an inflation joint, an inflation valve seat, an inflation valve core and an inflation valve spring. The inflation nut is connected in the cavity, a through hole is provided in the middle of the inflation nut, a hollow inflation rod is installed in the through hole, the head of the inflation rod is provided with an inflation gasket, the head of the inflation rod provided with the inflation gasket is provided with an inflation joint, a cavity is provided inside the inflation joint, a first filter is provided below the head of the inflation rod, the first filter is located in a cavity inside the inflation joint, the inflation joint is connected in the cavity, an inflation valve seat is provided below the inflation joint, an inflation valve core is provided below the inflation valve seat, an inflation valve spring is provided below the inflation valve core, and the inflation valve core and the inflation valve spring are tightly fitted to the cavity wall.

3. The 70MPa hydrogen fuel mobile power supply bottle mouth valve according to claim 1, characterized in that: A TPRD assembly 102 is installed in a cavity at the upper part of the shell. The TPRD assembly 102 includes a disc spring, a plunger, a glass bulb and a cap. The plunger is installed in the cavity. The plunger fits tightly against the cavity wall. The plunger is a columnar structure with two different diameters. A stepped blind hole is opened inside the part with a larger diameter of the plunger. A disc spring is arranged at the lower part of the part with a larger diameter of the plunger. The disc spring is sleeved outside the part with a smaller diameter of the plunger. The disc spring is located between the lower part of the part with a larger diameter of the plunger and the cavity of the shell. The cap is connected to the cavity opening of the shell. The cap has a blind hole. The glass bulb is arranged between the blind hole of the cap and the blind hole of the plunger. A through hole is opened on the side end face of the plunger on the shell. The through hole can connect the outside of the shell with the side end face of the cavity where the plunger is installed.

4. The 70MPa hydrogen fuel mobile power supply bottle mouth valve according to claim 1, characterized in that: A pressure sensor is installed in a cavity of the shell. The pressure sensor is a stepped columnar structure. The part of the pressure sensor extending into the shell cavity is tightly fitted with the cavity wall.

5. The 70MPa hydrogen fuel mobile power supply bottle mouth valve according to claim 1, characterized in that: A stop valve is installed in a cavity of the shell, and the stop valve includes a stop valve core, a stop valve stem, a stop nut, a stop screw and a handle. The stop nut is connected to the cavity, a through hole is opened inside the stop nut, the stop valve stem passes through the through hole in the middle of the stop nut, a blind hole is opened at the head of the stop valve stem, a columnar stop valve core is installed in the blind hole, a channel parallel to the axis is opened in the middle position of the stop valve stem axis, one end of the channel is communicated with the blind hole at the head of the stop valve stem, a channel perpendicular to the axis is opened at the end of the stop valve stem, a columnar stop screw is installed in the channel, a handle is sheathed on the end of the stop valve, and the stop screw passes through the side wall of the handle at the same time.

6. The 70MPa hydrogen fuel mobile power bottle mouth valve according to claim 1, characterized in that: An overpressure relief valve is arranged in a cavity of the shell, and the overpressure relief valve includes a safety valve, a safety valve spring, a valve core sleeve and a safety valve core. The safety valve is a bolt-like structure, and its rod-like part is connected to the cavity. A blind hole is opened in the safety valve, and a columnar valve core sleeve is installed in the blind hole. The valve core sleeve has a cylindrical cavity, one end of the valve core sleeve is open, and the other end of the valve core sleeve is opened with a through hole. The safety valve core is a columnar cavity with different diameters, and its head with a smaller diameter passes through the through hole at one end of the valve core sleeve. The larger diameter part of the safety valve core is arranged in the cavity of the valve core sleeve, and the safety valve spring is arranged between the inner end surface of the safety valve and the safety valve core.

7. The 70MPa hydrogen fuel mobile power bottle valve according to claim 1, characterized in that: The bottle mouth at the bottom of the shell is a columnar structure, a bell mouth is formed at the end of the bottle mouth, a second filter is installed at the bell mouth, and a blind hole is formed in the bottle mouth.

8. The 70MPa hydrogen fuel mobile power supply bottle mouth valve according to claim 1, characterized in that: A first-level pressure reducing device is installed in a cavity of the shell, and the first-level pressure reducing device includes a first-level end cover, a first-level spring, a first-level valve stem, a first-level valve core and a valve core pressure ring, wherein the end cover is connected to the cavity, and a first-level valve stem is arranged in the cavity of the shell inside the end cover, the first-level valve stem is a bolt-like structure, and the first-level valve stem is divided into a rod-like part and an end part, a first-level spring is sleeved in the middle of the rod-like part of the first-level valve stem, one end of the first-level spring abuts against the cavity wall of the shell, and one end of the first-level spring abuts against the end of the first-level valve stem, a stepped through hole is opened in the middle of the first-level valve stem, a first-level valve core is arranged in the cavity inside the first-level valve stem, a valve core pressure ring is sleeved on the first-level valve core, and the valve core pressure ring is tightly fitted to the inner wall of the cavity.

9. The 70MPa hydrogen fuel mobile power supply bottle mouth valve according to claim 1, characterized in that: The top of the shell body is provided with a flange-shaped interface, in which a secondary pressure reducing device is installed, and the secondary pressure reducing device comprises a secondary valve sleeve, a secondary valve core, a secondary spring, a secondary valve stem, a spring plug, a small spring, a guide ring, a spring retaining ring, a quick-insert valve seat, a secondary outlet and a large spring, wherein the secondary valve sleeve is installed in the flange-shaped interface, the secondary valve sleeve is a columnar structure, one end of which is open, and a through hole is opened in the middle of the closed end surface of the other end of the secondary valve sleeve, and the middle of the secondary valve sleeve has a cylindrical structure, the secondary valve stem is a structure with a T-shaped cross-section and a rod-shaped head and an end, the head of the secondary valve stem is inserted into the cylindrical structure in the middle of the secondary valve sleeve, a through hole is opened on the secondary valve stem, and a cavity is opened in its rod-shaped head, in which the secondary valve core and the secondary valve stem are installed. A secondary outlet is arranged at the upper part, and the secondary outlet is a columnar structure with an annular outer protrusion in the middle. A bottle-shaped through hole is opened in the middle of the secondary outlet, and an annular spring plug is installed in the through hole. A one-way valve core is installed at the upper part of the through hole, and a small spring is arranged between the one-way valve core and the spring plug. An outlet quick plug is arranged on the outer side of the upper part of the secondary outlet, and the outlet quick plug includes an outlet female head, which is arranged on the outer side of the upper part of the secondary outlet. The outlet female head has an annular outer protrusion, and a through hole is opened in the middle of the outlet female head. The upper part of the one-way valve core is inserted into the through hole of the outlet female head, and a plugging cap is connected to the upper through hole of the outlet female head. A small spring is arranged between the lower part of the plugging cap and the upper part of the one-way valve core, and the outlet female head has a horizontal through hole perpendicular to the axis, and the through hole runs through the outlet female head.

10. The 70MPa hydrogen fuel mobile power supply bottle mouth valve according to claim 1, characterized in that: The flange-shaped interface above the shell is externally clamped with a quick-insert valve seat, one end of the quick-insert valve seat is open, and the other end has an annular outer protrusion, the outer protrusion of the quick-insert valve seat is connected to the outer protrusion of the outlet female head, the outlet female head is sleeved on the outer side of the upper part of the secondary outlet and is provided with a large spring, the upper part of the flange-shaped interface above the shell is located inside the quick-insert valve seat and a guide ring is installed, a spring retaining ring is sleeved inside the guide ring, and the spring retaining ring is sleeved outside the large spring.

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