high pressure tank

Abstract

The high-pressure tank of the present application has a tank main body, a valve, and a handle portion. The valve has a first body portion provided with a first communication hole and a first receiving hole in communication with the first communication hole, a second body portion provided with a second communication hole in communication with the first receiving hole and a second receiving hole in communication with the second communication hole, a connector portion provided with a through hole in communication with the second receiving hole, a second valve body that cuts off the communication between the through hole and the second receiving hole and allows the communication between the through hole and the second receiving hole by the pressing force of a pressing pin, and a handle portion that can be inserted into a handle receiving groove on the gas supply target object side. The first valve body is opened and closed in conjunction with the twisting operation of the handle portion.

Description

Technical Field

[0001] This invention relates to high-pressure tanks, and more particularly to high-pressure tanks having valves assembled on a metal cap. Background Technology

[0002] Conventionally, in this technical field, for example, there is a known technology, such as that described in Japanese Patent Application Publication No. 2006-177538, which assembles a valve unit consisting of a main body shell, a sub-shell, a main valve, and a secondary valve on the metal cover of the tank body. The main valve has a valve mechanism, and the secondary valve is forced into a closed state by a force-applying unit. Furthermore, a protrusion provided on the main valve overcomes the force of the force-applying unit, causing the secondary valve to move into an open state. With the secondary valve moved from the closed state, the connection between the main valve and the outside of the tank body is cut off by a sealing member.

[0003] In a high-pressure tank with this structure, if the main valve mechanism malfunctions and needs replacement, the protrusion is moved without applying force to the secondary valve in the open position, thereby restoring the secondary valve to the closed position through the force-applying unit. Then, with the through-hole guiding gas from the tank body to the outside through the secondary valve closed, the main valve is removed from the assembly section, and the normal main valve is then assembled into the assembly section. Thus, when replacing the main valve assembled in the metal cover section, it is possible to prevent external air from entering the tank body and to prevent gas accumulated in the tank body from flowing out of the tank body.

[0004] However, in the aforementioned high-pressure tank, when gas leakage occurs in the main valve or auxiliary valve due to reasons such as foreign objects being trapped or valves being stuck in the open state, it is difficult to quickly stop the gas leakage. Summary of the Invention

[0005] This invention was made to solve such a technical problem, and its purpose is to provide a high-pressure tank that can quickly stop gas leakage in the event of gas leakage in a valve.

[0006] The high-pressure tank of the present invention comprises:

[0007] The main body of the tank contains the gas;

[0008] Valve, which is assembled on the aforementioned tank body; and

[0009] The handle is mounted on the tank body and located on the side opposite to the valve.

[0010] The above-mentioned valve has the following features:

[0011] The first body part is assembled to the metal cover of the can body and has a first connecting hole that communicates with the interior of the can body and a first receiving hole that communicates with the first connecting hole and has a diameter larger than that of the first connecting hole.

[0012] The second body portion has a second connecting hole that communicates with the first receiving hole and a second receiving hole that communicates with the second connecting hole and has a diameter larger than that of the second connecting hole. The second body portion has a first valve body that is received in the first receiving hole and cuts off or allows communication between the first receiving hole and the first connecting hole.

[0013] The connector part is connected to the second body part and has a through hole inside that communicates with the second receiving hole. The connector part is fitted with the gas supply object to which the gas is supplied.

[0014] The second valve body, housed in the second receiving hole, disconnects the connection between the through hole and the second receiving hole by the force of a spring. The second valve body allows the connection between the through hole and the second receiving hole to be maintained by the pressing force of a pressing pin applied to the gas supply object.

[0015] The handle portion, which protrudes radially from the second body portion toward the main body of the canister, can be inserted into a handle receiving groove provided in the gas supply object when the high-pressure canister is fitted with the gas supply object via the connector portion.

[0016] With the handle portion embedded in the handle receiving groove of the gas supply object, the first valve body, accompanied by the twisting operation of the handle portion, cuts off or allows the communication between the first receiving hole and the first communicating hole.

[0017] In the high-pressure vessel of the present invention, with the handle portion embedded in the handle receiving groove of the gas supply object, the first valve body, upon twisting the handle portion, cuts off or allows communication between the first receiving hole and the first communicating hole. Therefore, the opening and closing of the first valve body can be achieved solely by twisting the handle portion. Thus, even in the event of gas leakage in the valve, the communication between the first receiving hole and the first communicating hole can be easily cut off by twisting the handle portion, thereby preventing gas leakage. As a result, in the event of gas leakage in the valve, gas leakage can be quickly prevented.

[0018] According to the present invention, in the event of gas leakage in the valve, gas leakage can be quickly stopped. Attached Figure Description

[0019] The features, advantages, and technical and industrial importance of embodiments of the present invention will now be described with reference to the accompanying drawings, wherein like reference numerals denote like elements.

[0020] Figure 1 This is a simplified cross-sectional view of the high-pressure tank used in the embodiment.

[0021] Figure 2This is an enlarged sectional view of the valve.

[0022] Figure 3 It is a cross-sectional view showing the state in which the high-pressure tank and the gas supply object are fitted together.

[0023] Figure 4 It is along Figure 3 A cross-sectional view along line IV-IV.

[0024] Figure 5 It is a cross-sectional view showing the opening and closing of the valve as the handle is twisted while the valve is engaged with the object to which the gas is supplied.

[0025] Figure 6 This is a cross-sectional view showing how the second valve body opens due to the pressure of the pressing pin. Detailed Implementation

[0026] Hereinafter, embodiments of the high-pressure tank of the present invention will be described with reference to the accompanying drawings. In the following description, the left and right directions are directions that correspond to the states shown in the drawings for ease of explanation, and the posture or configuration of the high-pressure tank is not limited. In addition, in the following description, an example is given in which the high-pressure tank is filled with hydrogen, but the gas that can be filled into the high-pressure tank is not limited to hydrogen, and can also be various compressed gases such as CNG (compressed natural gas), LNG (liquefied natural gas), LPG (liquefied petroleum gas), etc.

[0027] Figure 1 This is a simplified cross-sectional view of the high-pressure tank illustrating the implementation method. Figure 2 This is an enlarged sectional view of the valve. For example... Figure 1 As shown, the high-pressure canister 1 of this embodiment is, for example, a cylindrical canister with a handle used in portable hydrogen cartridge containers, and is used in various applications (i.e., gas supply targets) such as drones, two-wheeled vehicles, four-wheeled vehicles, and household power supplies. The high-pressure canister 1 has a cylindrical outer shell 2, a canister body 3 and a valve 4 housed inside the outer shell 2, and a handle portion 5 installed at one end of the outer shell 2 and exposed to the outside of the outer shell 2.

[0028] The outer casing 2 is made of, for example, a hard resin material. A rectangular opening 21 is formed at the center of the end of the outer casing 2 opposite to the handle portion 5 (see reference). Figure 4 The tank body 3, valve 4, and safety valve body 7 and safety valve 9 (described later) are supported by a support body 6 made of metal or hard resin material. The support body 6 is, for example, a frame fixed to the tank body 3 and fixed to the inner wall of the outer casing 2 via a plurality of mounting parts 8.

[0029] The main body 3 is a generally cylindrical high-pressure gas storage container with rounded corners and dome-shaped ends. It includes a gas-barrier liner 31, a first fiber-reinforced resin layer 32 covering the outer periphery of the liner 31, and a second fiber-reinforced resin layer 33 covering the first fiber-reinforced resin layer 32. The liner 31 is a hollow container with a storage space for storing hydrogen gas and is formed of a resin material that is gas-barrier to hydrogen. The liner 31 has a cylindrical body 31a and a pair of domes (left dome 31b and right dome 31c) at both ends of the body 31a. The left dome 31b and the right dome 31c are each hemispherical. The resin constituting the liner 31 only needs to have good gas barrier properties; examples include polyamide, polyethylene, ethylene-vinyl alcohol copolymer (EVOH), thermoplastic resins such as polyester, and thermosetting resins such as epoxy.

[0030] The first fiber-reinforced resin layer 32 and the second fiber-reinforced resin layer 33 function to strengthen the inner liner 31 and improve the mechanical strength of the high-pressure tank 1, such as rigidity and pressure resistance. Each layer has multiple layers formed of fiber-reinforced resin. The fiber-reinforced resin is formed, for example, by impregnating a fiber bundle consisting of fibers with a diameter of about a few μm with a thermosetting resin or a thermoplastic resin. Examples of fibers include carbon fiber, glass fiber, aramid fiber, alumina fiber, boron fiber, steel fiber, PBO fiber, natural fiber, or high-strength polyethylene fiber. From the viewpoints of lightweight and mechanical strength, carbon fiber is particularly preferred.

[0031] Examples of thermosetting resins include epoxy resins, modified epoxy resins (represented by vinyl ester resins), phenolic resins, melamine resins, urea-formaldehyde resins, unsaturated polyester resins, alkyd resins, polyurethane resins, and thermosetting polyimide resins. Examples of thermoplastic resins include polyetheretherketone, polyphenylene sulfide, polyacrylates, polyimides, and polyamides.

[0032] Openings are formed at both ends of the main body 3, and metal caps 34 and 35 are provided at the openings. Specifically, as follows: Figure 1 As shown, a metal cap 34 is inserted into the opening of the tank body 3, which has a left rounded top 31b, and a metal cap 35 is inserted into the opening of the tank body 3, which has a right rounded top 31c. The metal cap 34 functions as a valve-side metal cap, and the aforementioned valve 4 is assembled on the metal cap 34. On the other hand, the metal cap 35 functions as a safety valve-side metal cap, and a safety valve body 7 is assembled on the metal cap 35.

[0033] The metal caps 34 and 35 are formed into a generally cylindrical shape from metal materials such as stainless steel and aluminum alloy. One end of the metal caps 34 and 35 is inserted into the opening, and the other end of the metal caps 34 and 35 protrudes outward from the high-pressure tank 1 along the axial direction of the high-pressure tank 1. More specifically, the metal caps 34 and 35 have a generally cylindrical metal cap body 341 and 351 extending along the axial direction of the high-pressure tank 1, and flanges 342 and 352 integrally formed with the metal cap body 341 and 351 and protruding radially from the high-pressure tank 1. Furthermore, an internal thread 343 for threaded engagement with the valve 4 is formed on the inner peripheral wall of the metal cap body 341, and an internal thread 353 for threaded engagement with the safety valve body 7 is formed on the inner peripheral wall of the metal cap body 351.

[0034] The safety valve body 7 is made of metal materials such as stainless steel and aluminum alloy. For example... Figure 1 As shown, the safety valve body 7 is generally cylindrical, with a through hole 71 forming inside that communicates with the interior of the tank body 3. An external thread 72 is formed on a portion of the outer peripheral wall of the safety valve body 7. The safety valve body 7, with this structure, is assembled to the metal cover 35 in a manner that closes the metal cover 35, and is secured to the metal cover 35 by the threaded engagement of the external thread 72 with the internal thread 353 of the metal cover 35. Furthermore, a metal safety valve 9 is assembled within the safety valve body 7.

[0035] Safety valve 9, for example, is a temperature-activated pressure relief device, which is a safety device that releases gas from the tank body 3 to the outside when heat such as a flame is detected.

[0036] The handle 5 is a so-called carrying handle, for example, made of a hard resin material. The handle 5 is in the shape of an arc protruding outward from the outer casing 2, so that the user of the pressure canister 1 can easily hold it and easily turn it.

[0037] On the other hand, valve 4 is a component used to discharge hydrogen gas stored in the tank body 3 to the gas supply target, and is made of metal materials such as stainless steel and aluminum alloy. Figure 2 As shown, the valve 4 includes a first body portion 41 assembled to the metal cover portion 34, a second body portion 42 having a portion inserted into the first body portion 41 and a portion exposed from the first body portion 41, and a connector portion 43 connected to the second body portion 42 and used for fitting with a gas supply object.

[0038] The first body portion 41 is a hollow cylindrical body with a generally T-shaped cross-section, having an insertion portion 411 extending axially along the high-pressure tank 1 and inserted into the metal cover portion 34, a flange portion 412 protruding from the outside of the metal cover portion 34 and extending radially along the high-pressure tank 1, and an external thread portion 413 formed on a portion of the outer peripheral wall of the insertion portion 411. The first body portion 41 with this structure is inserted into the metal cover portion 34 until the flange portion 412 abuts against the front end face of the metal cover portion 34, and is fastened to the metal cover portion 34 by the threaded engagement of the external thread portion 413 with the internal thread portion 343 of the metal cover portion 34.

[0039] like Figure 2 As shown, a peripheral groove is provided in the insertion part 411 near the inner side of the can body 3, closer to the external thread part 413. An O-ring 44 is embedded in this peripheral groove to maintain the seal between the insertion part 411 and the metal cover body 341 of the metal cover part 34. In addition, inside the first body part 41, a first communication hole 414 communicating with the interior of the can body 3 and a first receiving hole 415 communicating with the first communication hole 414 and having a diameter larger than that of the first communication hole 414 are provided. The first communication hole 414 and the first receiving hole 415 extend along the axial direction of the high-pressure can 1 and are arranged coaxially.

[0040] Furthermore, a stepped portion 416 is formed between the smaller diameter first connecting hole 414 and the larger diameter first receiving hole 415. The edge of the stepped portion 416 forms a valve seat that contacts and separates from the first valve body 424 described later. In addition, an internal thread portion 417 is formed on the inner peripheral wall of the first receiving hole 415 adjacent to the stepped portion 416.

[0041] The second body section 42 is a hollow cylindrical body with a roughly cross-shaped cross section, and has an inner insertion part 421 inserted into the first body section 41, an exposed part 422 protruding from the first body section 41, and a handle part 423 protruding radially from the exposed part 422 toward the tank body 3 (i.e., radially toward the high-pressure tank 1). The inner insertion part 421 is inserted into the first receiving hole 415 of the first body section 41, and the exposed part 422 protrudes from the first receiving hole 415. The handle part 423 is composed of a pair of rod-shaped members integrally formed with the exposed part 422 and extending from the exposed part 422 in opposite directions (see reference). Figure 4 The handle portion 423 is configured such that when the high-pressure tank 1 is fitted with the gas supply object 10 via the connector portion 43, it can be inserted into the handle receiving groove 104 provided in the gas supply object 10.

[0042] like Figure 2As shown, a portion of the outer peripheral wall of the insert portion 421 has an external threaded portion 428 that engages with the internal threaded portion 417 of the first body portion 41. The portion of the insert portion 421 closer to the interior of the can body 3 than the external threaded portion 428 is reduced in diameter to create space between it and the first receiving hole 415. Furthermore, the front end of the insert portion 421 is machined into a frustum-shaped cone, thereby forming a first valve body 424 that cuts off or allows communication between the first receiving hole 415 and the first communication hole 414. A peripheral groove is provided on the outer peripheral wall of the portion of the insert portion 421 closer to the handle portion 423 than the external threaded portion 428, and an O-ring 45 is embedded in this groove to maintain a tight seal between the insert portion 421 and the peripheral wall of the first receiving hole 415. On the other hand, an external threaded portion 429 for threaded engagement with the connector portion 43 is formed on the outer peripheral wall of the exposed portion 422.

[0043] Additionally, the second body portion 42 has a second connecting hole 425 communicating with the first receiving hole 415 of the first body portion 41, and a second receiving hole 426 communicating with the second connecting hole 425 and having a diameter larger than that of the second connecting hole 425. The second connecting hole 425 has a first portion extending axially along the high-pressure tank 1 and a second portion extending radially along the high-pressure tank 1. The second portion of the second connecting hole 425 is located on the side closer to the handle portion 423 than the first valve body 424, opening into the space between the inward insertion portion 421 and the first receiving hole 415.

[0044] Furthermore, a step portion 427 is formed between the smaller diameter second connecting hole 425 and the larger diameter second receiving hole 426. The first portion of the second receiving hole 426 and the second connecting hole 425 are arranged coaxially. The spring 46 and the second valve body 47 are housed in the second receiving hole 426. In addition, the step portion 427 functions as a limiting part for the spring 46.

[0045] like Figure 2 As shown, spring 46 is disposed between the second valve body 47 and the stepped portion 427, applying force in the direction that closes the second valve body 47. The second valve body 47 is a frustoconical shape with a reduced diameter toward the connector portion 43. The second valve body 47 cuts off the communication between the through hole 434 (described later) and the second receiving hole 426 of the connector portion 43 by the force of spring 46, and the second valve body 47 is configured such that the communication between the through hole 434 and the second receiving hole 426 can be allowed by the pressing force of the pressing pin 105 provided on the gas supply object 10.

[0046] The connector part 43 is a component for engaging with the fitting part 102 (described later) of the gas supply object 10. The connector part 43 has a receiving part 431 for receiving the plug part 103 (described later) of the gas supply object 10, and a cylindrical threaded engagement part 432 that protrudes from the receiving part 431 and engages with the exposed part 422 of the second body part 42. The receiving part 431 and the threaded engagement part 432 are formed integrally.

[0047] A through hole 434 communicating with the second receiving hole 426 of the second body part 42 is formed inside the receiving part 431. The through hole 434 has a stepped structure with varying inner diameter to limit the insertion depth of the plug part 103 of the gas supply object 10 inserted therein. In addition, an internal thread part 433 is formed on the inner peripheral wall of the threaded engagement part 432, which is threadedly engaged with the external thread part 429 of the second body part 42. The connector part 43 is fastened to the exposed part 422 of the second body part 42 by the threaded engagement of the internal thread part 433 with the external thread part 429 of the second body part 42.

[0048] like Figure 2 As shown, when the connector part 43 is connected to the second body part 42, the communication between the through hole 434 and the second receiving hole 426 of the second body part 42 is cut off by the second valve body 47.

[0049] The following is for reference Figures 3-6 This describes the opening and closing status of valve 4 when the high-pressure tank 1 is loaded or unloaded onto the gas supply object 10.

[0050] Here, firstly, the structure of the gas supply object 10 will be briefly described. For example... Figure 3 and Figure 4 As shown, the gas supply object 10, for example, is hydrogen supplied to a high-pressure tank 1, and includes a guide hole 101 for smooth insertion of the high-pressure tank 1, and a fitting portion 102 that is erected from the center of the bottom of the guide hole 101 and opens toward the high-pressure tank 1. The fitting portion 102 is formed smaller than the outer casing opening 21 so that it can be smoothly inserted into the outer casing opening 21 of the high-pressure tank 1. The fitting portion 102 has a plug portion 103 for inserting into a through hole 434 of a connector portion 43, and a handle receiving groove 104 for receiving the handle portion 423 of the high-pressure tank 1 when the plug portion 103 is inserted into the through hole 434.

[0051] A receiving hole 106 for receiving a pressing pin 105 is formed in the center of the plug portion 103. The receiving hole 106 is configured to be coaxial with the through hole 434 when the plug portion 103 is inserted into the through hole 434. The pressing pin 105 can, for example, protrude outward from the front end of the plug portion 103 or return into the receiving hole 106 by a drive mechanism. In addition, a recess 107 is formed around the plug portion 103 to allow the receiving portion 431 of the connector portion 43 of the high-pressure canister 1 to be inserted. On the other hand, the handle receiving groove 104 has a sidewall that restricts the handle portion 423 of the high-pressure canister 1 embedded therein.

[0052] Furthermore, when the high-pressure canister 1 is used in conjunction with the gas supply object 10, the user, for example, holds the handle 5 and inserts the high-pressure canister 1 into the guide hole 101 of the gas supply object 10 with the side of the high-pressure canister 1 equipped with the valve 4 facing the gas supply object 10. As described above, since the outer casing opening 21 is open at the front end of the outer casing 2 of the high-pressure canister 1, as it is inserted into the guide hole 101, the fitting portion 102 disposed at the bottom of the guide hole 101 enters the outer casing 2 from the outer casing opening 21.

[0053] If the high-pressure canister 1 is fully inserted into the guide hole 101, the connector portion 43 of the high-pressure canister 1 engages with the fitting portion 102 of the gas supply object 10. That is, the plug portion 103 of the gas supply object 10 is inserted into the through hole 434 of the connector portion 43, and the handle portion 423 of the high-pressure canister 1 is embedded in the handle receiving groove 104 of the gas supply object 10.

[0054] In this embodiment, from the viewpoint of ensuring the safe use of the high-pressure canister 1, locking the high-pressure canister 1 to the gas supply object 10 is determined by rotating the high-pressure canister 1, which is inserted into the guide hole 101 of the gas supply object 10, for example, counterclockwise. Therefore, after the user fully inserts the high-pressure canister 1 into the guide hole 101, the high-pressure canister 1 is locked to the gas supply object 10 by rotating it counterclockwise by, for example, 45° while holding the handle 5 of the high-pressure canister 1.

[0055] Furthermore, since the handle portion 423 of the high-pressure tank 1 is restricted by the side wall of the handle receiving groove 104 of the gas supply object 10, if the handle portion 5 is turned, the second body portion 42 rotates 45° relative to the first body portion 41 (see reference). Figure 5 Therefore, the first valve body 424 formed at the front end of the second body portion 42 moves in the valve opening direction, that is, in the direction that allows communication between the first receiving hole 415 and the first communicating hole 414 of the first body portion 41. Therefore, as Figure 5As shown, the first valve body 424 leaves the valve seat, and the hydrogen gas inside the canister body 3 passes sequentially through the first connecting hole 414, the gap between the first valve body 424 and the valve seat, and the second connecting hole 425, thereby entering the interior of the second receiving hole 426 of the second body part 42 (see reference). Figure 5 (Middle gray area). Furthermore, at this time, since the second valve body 47 is in the closed state, the entry of hydrogen into the gas supply object 10 is blocked by the second valve body 47.

[0056] Furthermore, if the user operates the drive mechanism on the gas supply object 10 side, for example, by pressing a button, the pressing pin 105, which is received in the receiving hole 106, protrudes from the front end of the plug portion 103, abuts against the second valve body 47 on the high-pressure tank 1 side, and presses the second valve body 47 in the valve opening direction against the force of the spring 46 (see reference). Figure 6 Under the pressure of the pressing pin 105, the second valve body 47 opens, and hydrogen gas entering the second receiving hole 426 of the second body part 42 flows to the gas supply target 10 side through the gap between the receiving hole 106 and the pressing pin 105 (see reference). Figure 6 (Middle gray area).

[0057] Furthermore, to stop the hydrogen supply, the user simply needs to operate the drive mechanism on the side of the gas supply target 10 by pressing a button. This causes the pressing pin 105 to retract into the receiving hole 106, and the second valve body 47 closes again under the force of the spring 46. Therefore, the entry of hydrogen into the gas supply target 10 is prevented.

[0058] Furthermore, for example, in the event of gas leakage in valve 4 due to foreign object insertion, valve jamming in the open state, or when attempting to remove high-pressure canister 1 from gas supply object 10, the user can release the locking state between high-pressure canister 1 and gas supply object 10 by rotating high-pressure canister 1 clockwise by, for example, 45° while holding handle 5. At this time, since the handle 423 of high-pressure canister 1 is restricted by the side wall of handle receiving groove 104 of gas supply object 10, the second body part 42 rotates 45° relative to the first body part 41. As a result, the first valve body 424 of the second body part 42 moves in the valve closing direction, that is, in the direction of cutting off the communication between the first receiving hole 415 and the first connecting hole 414 of the first body part 41. Therefore, the entry of hydrogen gas inside the canister body 3 into the second connecting hole 425 of the second body part 42 is prevented.

[0059] In the high-pressure canister 1 of this embodiment, with the handle portion 423 of the high-pressure canister 1 inserted into the handle receiving groove 104 of the gas supply object 10, the first valve body 424, in conjunction with the user's twisting operation of the handle portion 5, cuts off or allows the communication between the first receiving hole 415 and the first communicating hole 414. That is, the opening and closing of the first valve body 424 can be performed in conjunction with the twisting operation of the handle portion 5. Therefore, after the user inserts the high-pressure canister 1 into the guide hole 101 of the gas supply object 10, the opening and closing of the first valve body 424 can be achieved solely by twisting the handle portion 5. Therefore, even if a gas leak occurs in the valve 4, the communication between the first receiving hole 415 and the first communicating hole 414 can be easily cut off by twisting the handle portion 5, thereby quickly stopping the gas leak.

[0060] Furthermore, in the state before the high-pressure canister 1 is inserted into the guide hole 101 of the gas supply object 10 (in other words, in the unused state of the high-pressure canister 1), the first valve body 424 cuts off the connection between the first receiving hole 415 and the first connecting hole 414, and the second valve body 47 cuts off the connection between the through hole 434 and the second receiving hole 426 by the force of the spring 46. That is, both the first valve body 424 and the second valve body 47 are in the closed valve state, thus improving the robustness of the second valve body 47 against gas leakage.

[0061] Furthermore, when the user inserts the high-pressure canister 1 into the guide hole 101 of the gas supply object 10, the first valve body 424 is in a state of cutting off the communication between the first receiving hole 415 and the first communicating hole 414. Therefore, the assembly load of the high-pressure canister 1 is small, and the connector portion 43 of the high-pressure canister 1 can be fitted with the fitted portion 102 of the gas supply object 10 more smoothly. Therefore, the connector portion 43 of the high-pressure canister 1 can be fitted with the fitted portion 102 of the gas supply object 10 in a one-touch manner, realizing a one-touch connector.

[0062] Furthermore, in the high-pressure tank 1 of this embodiment, gas filling into the tank body 3 is performed via valve 4. For example, after the first valve body 424 is opened by rotating the handle 423, the gas filling nozzle on the gas station side is inserted into the through hole 434 of the connector 43 of the valve 4, and the second valve body 47 is pushed open by the filling pressure to perform gas filling.

[0063] The embodiments of the present invention have been described in detail above, but the present invention is not limited to the above embodiments. Various design changes can be made without departing from the spirit of the present invention as set forth in the claims.

Claims

1. A high-pressure tank, wherein, have: The main body of the tank contains the gas; Valve, which is assembled on the tank body; and The handle is mounted on the tank body and located on the side opposite to the valve. The valve includes: The first body part is assembled to the metal cover of the can body, and has a first connecting hole that communicates with the interior of the can body, and a first receiving hole that communicates with the first connecting hole and has a diameter larger than the diameter of the first connecting hole. The second body portion has a second connecting hole that communicates with the first receiving hole and a second receiving hole that communicates with the second connecting hole and has a diameter larger than that of the second connecting hole. The second body portion also has a first valve body that is received in the first receiving hole and cuts off or allows communication between the first receiving hole and the first connecting hole. The connector part is connected to the second body part and has a through hole inside that communicates with the second receiving hole. The connector part is fitted with the gas supply object to which the gas is supplied. The second valve body, housed in the second receiving hole, disconnects the connection between the through hole and the second receiving hole by the force of a spring. The second valve body allows the connection between the through hole and the second receiving hole to be maintained by the pressing force of a pressing pin on the gas supply object. A handle portion, which protrudes radially from the second body portion toward the canister body, is capable of being inserted into a handle receiving groove provided in the gas supply object when the high-pressure canister is engaged with the gas supply object via the connector portion. With the handle portion embedded in the handle receiving groove of the gas supply object, the first valve body, accompanied by the twisting operation of the handle portion, cuts off or allows communication between the first receiving hole and the first communicating hole.

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