Tank valve device and valve block

Abstract

A tank valve device is provided with: a valve block which is attached to the mouth of a tank and which includes a fluid inlet / outlet and a flow path connecting the inlet / outlet and the inside of the tank; a solenoid valve for opening and closing the flow path; a manual valve for stopping the flow in the flow path; and a safety valve that discharges the fluid when the temperature outside the tank exceeds a predetermined temperature, the inlet / outlet and the solenoid valve are disposed on the valve block outside the tank and on a first side of one of the four sides of the valve block, and the manual valve and the safety valve are respectively disposed on the valve block outside the tank and on a second side and a third side of two of the remaining three sides.

Description

Technical Field

[0001] This disclosure relates to a tank valve device and valve block installed at the mouth of a tank. Background Technology

[0002] A valve is installed at the mouth of the tank to control the inflow and outflow of fluid stored in the tank. Such a valve device is known, for example, as described in Patent Document 1.

[0003] Existing technical documents: Patent documents: Patent Document 1: Japanese Patent No. 6568783. Summary of the Invention

[0004] The problem the invention aims to solve: In the valve device described in Patent Document 1, various valves, such as manual valves, solenoid valves, and safety valves, are mounted on the base, which corresponds to the valve block. Furthermore, flow paths are formed on the valve block to connect multiple valves. However, because multiple valves are mounted on the valve block, the flow path structure becomes complex. Consequently, the valve block becomes large; that is, the valve device becomes large.

[0005] The purpose of this disclosure is to provide a miniaturized tank valve device and valve block.

[0006] Solution methods: The tank valve device disclosed herein comprises: a valve block installed at the opening of a tank, including a fluid inlet / outlet and a flow path connecting the inlet / outlet to the inside of the tank; a solenoid valve for opening and closing the flow path; a manual valve for stopping the flow in the flow path; and a safety valve for releasing fluid when the temperature outside the tank exceeds a predetermined temperature, wherein the inlet / outlet and the solenoid valve are disposed on the valve block outside the tank and as a first side of one of the four sides of the valve block, and the manual valve and the safety valve are respectively disposed on the valve block outside the tank as a second side and a third side of two of the remaining three sides.

[0007] According to this disclosure, the flow path can be concentrated in the central part of the valve block, simplifying the flow path structure. This allows for the miniaturization of the valve block.

[0008] The valve block disclosed herein is a valve block installed at the mouth of a tank, comprising: a block body; a fluid inlet / outlet; a flow path connecting the inlet / outlet to the inside of the tank; a first valve hole into which a solenoid valve for opening and closing the flow path is inserted; a second valve hole into which a manual valve for stopping the flow in the flow path is inserted; and a third valve hole into which a safety valve for releasing fluid when the fluid flowing in the flow path exceeds a predetermined temperature is inserted. The inlet / outlet and the first valve hole are disposed on the block body outside the tank and as a first side of one of the four sides of the block body. The second valve hole and the third valve hole are respectively disposed on the block body outside the tank and as a second side and a third side of two of the remaining three sides.

[0009] According to this disclosure, the flow path can be concentrated in the central part of the valve block, simplifying the flow path structure. This allows for the miniaturization of the valve block.

[0010] Invention effects: The tank valve device according to this disclosure enables the miniaturization of tank valves.

[0011] According to the valve block disclosed herein, the valve block can be miniaturized.

[0012] The above-mentioned objects, other objects, features and advantages of this disclosure will become clear from the following detailed description of preferred embodiments with reference to the accompanying drawings. Attached Figure Description

[0013] Figure 1 To show a front view of the tank valve device of this disclosure; Figure 2 Sectioned by section line II-II Figure 1 A cross-sectional view of the tank valve assembly; Figure 3 To be Figure 2 The disassembled view of the tank valve assembly is shown. Figure 4 for Figure 1 A top view of the tank valve assembly; Figure 5 In order to be in Figure 1 A cross-sectional view of the tank valve device when viewed by cutting along section line VV. Detailed Implementation

[0014] Hereinafter, with reference to the aforementioned accompanying drawings, the tank valve device 1 and the valve block 10 equipped thereon according to the embodiments of this disclosure will be described. Furthermore, the concept of direction used in the following description is for ease of explanation and does not limit the orientation of the structure of this disclosure to that direction. Also, the tank valve device 1 and valve block 10 described below are only one embodiment of this disclosure. Therefore, this disclosure is not limited to the following embodiment, and additions, deletions, and modifications can be made without departing from the spirit of this disclosure.

[0015] <Tank Valve Device> Figure 1 The tank 2 shown is capable of storing fluid. In this embodiment, the fluid is gas. A tank valve device 1 is provided on the tank 2. The tank valve device 1 closes the opening 2a of the tank 2. Thus, the tank 2 is sealed. Furthermore, the tank valve device 1 is an on-tank type tank valve device. Moreover, the tank valve device 1 can deliver gas from the tank 2 and stop the delivery of gas. In addition, the tank valve device 1 can allow gas to fill into the tank 2. To explain in more detail, the tank valve device 1, as... Figure 2 and 3 As shown, it also includes a valve block 10, a manual valve 11, a solenoid valve 12, a safety valve 13, and a pressure relief valve 14. Furthermore, the tank valve device 1, as... Figure 1 As shown, it also has sensor 15.

[0016] <Valve Block> Valve block 10, such as Figure 1 As shown, it is inserted into the opening 2a of the tank 2. More specifically, the valve block 10 is screwed into the opening 2a of the tank 2. Thus, the opening 2a is closed by the valve block 10.

[0017] Furthermore, the valve block 10 has an inlet / outlet 21 and an inlet / outlet flow path 22. The inlet / outlet 21 serves as both a gas inlet (filling port) and an outlet (supply port). The inlet / outlet 21 is formed on the valve block 10 outside the tank 2. The inlet / outlet flow path 22 connects the inside of the tank 2 to the inlet / outlet 21. Therefore, the inlet / outlet flow path 22 can deliver the gas inside the tank 2 from the inlet / outlet 21 to a machine or the like outside the tank 2. Additionally, gas can be filled into the tank 2 from the inlet / outlet 21 via the inlet / outlet flow path 22.

[0018] Furthermore, valve block 10 also includes: a discharge flow path 23, a pressure relief flow path 24, and a wiring passage 25. The discharge flow path 23 connects the inside and outside of tank 2. Moreover, the discharge flow path 23 discharges gas from inside tank 2 to the outside of tank 2. The pressure relief flow path 24 is connected to the inside of tank 2 via inlet / outlet flow path 22. Also, the pressure relief flow path 24 is connected to the outside of tank 2. Therefore, the pressure relief flow path 24 can release gas from inside tank 2. The wiring passage 25 connects the inside of tank 2 to the outside of tank 2. Furthermore, the wiring 15b of sensor 15 passes through wiring passage 25.

[0019] Furthermore, the valve block 10 has first to fourth surfaces 17a to 17d. More specifically, the valve block 10 includes a plug portion 16 and a block body 17. Moreover, in this embodiment, the first to fourth surfaces 17a to 17d are disposed on the block body 17 of the valve block 10. Hereinafter, the plug portion 16 and the block body 17 will be described in detail.

[0020] <Tether section> The plug 16 is inserted into the opening 2a in a sealed state. In this embodiment, the plug 16 is screwed into the opening 2a. More specifically, the plug 16 extends along a first axial direction. In this embodiment, the first axial direction is the direction in which a first axis L1 extends, serving as the axis of the plug 16. Furthermore, the plug 16 is inserted into the opening 2a in a manner that aligns the first axis L1 with the axis of the opening 2a.

[0021] <Block Body> The block body 17 is disposed outside the tank 2. More specifically, the block body 17 protrudes from the opening 2a. Furthermore, as previously described, the block body 17 has first to fourth surfaces 17a to 17d (see reference). Figure 2 and Figure 3 Furthermore, an inlet / outlet 21 and a solenoid valve 12 are provided on the first surface 17a. Also, a manual valve 11, a safety valve 13, and a pressure relief valve 14 are respectively provided on the second to fourth surfaces 17b to 17d.

[0022] To explain in more detail, the first to fourth surfaces 17a to 17d are the outer peripheral surfaces of the block body 17. That is, the first to fourth surfaces 17a to 17d are the outer peripheral surfaces of the valve block 10. Moreover, the first to fourth surfaces 17a to 17d face four directions respectively when viewed from one of the first axial directions (i.e., the side opposite to the tank 2 across the valve block 10). To explain in more detail, the first surface 17a faces the first side, which is one of the four directions. Also, the second surface 17b and the third surface 17c face the second and third sides, which are two of the remaining three directions, respectively. The fourth surface 17d faces the fourth side, which is different from the aforementioned first to third sides. In this embodiment, the first side is one direction. The second side is one direction. Also, the third side is the other direction. Moreover, the fourth side is the other direction. That is, in this embodiment, the first to fourth surfaces 17a to 17d are arranged in the order of the first to fourth surfaces 17a to 17d in a counterclockwise direction centered on the first axis L1 (hereinafter referred to as "counterclockwise direction") from a top-down perspective.

[0023] Furthermore, "four directions" refers to four different directions. In this embodiment, it refers to the directions pointed to by each of the four mutually orthogonal directions (i.e., one and the other of the first direction, and one and the other of the second direction). Additionally, the four directions do not necessarily have to be mutually orthogonal. They only need to be four intersecting directions. Moreover, the first and second directions are directions that intersect the axial direction extending from the first axis L1. In this embodiment, the first and second directions are mutually orthogonal and orthogonal to the first axis L1. Furthermore, the first direction in... Figure 2 and Figure 3 The paper shows left and right directions. Furthermore, one side of the first direction is left, and the other side is right. Also, the second direction is... Figure 2 On the paper, the directions are up and down. Furthermore, one direction is down, and the other is up.

[0024] Furthermore, in this embodiment, the first surface 17a is formed in a stepped shape. The first surface 17a has a first region 17e and a second region 17f. The first region 17e protrudes further to the first side than the second region 17f. The first surface 17a does not necessarily have to be stepped; it can also be uniformly flat. On the other hand, the second to fourth surfaces 17b to 17d are flat in this embodiment. However, the second to fourth surfaces 17b to 17d do not necessarily have to be flat.

[0025] The block body 17 is described in further detail below. The block body 17 has a mounting body 26 and an inlet / outlet plug 27. The mounting body 26, as... Figure 3 The valve block 10 is shown to have a mounting hole 31 and four valve holes 32-35. The mounting hole 31 and the first valve hole 32 are disposed on the first side of the block body 17. The second valve hole 33 is disposed on the second side of the block body 17. The third valve hole 34 is disposed on the third side of the block body 17. The fourth valve hole 35 is disposed on the fourth side of the block body 17. Therefore, the mounting hole 31 and the four valve holes 32-35 are arranged in the valve block 10 in a counterclockwise direction from a top-view perspective in the order of first valve hole 32, mounting hole 31, second valve hole 33, third valve hole 34, and fourth valve hole 35. Furthermore, the first valve hole 32, mounting hole 31, second valve hole 33, and fourth valve hole 35 are configured such that their axes lie on an imaginary plane P1. Also, the third valve hole 34 is configured such that its axis is closer to the tank 2 side than the imaginary plane P1. Here, the imaginary plane P1 is an imaginary plane orthogonal to the first axis L1. In this embodiment, the imaginary plane P1 is equivalent to... Figure 1 The section line II-II is the section surface when the valve device 1 is cut.

[0026] To explain in more detail, the mounting body 26 has first to fourth protrusions 26a to 26d. In this embodiment, the mounting body 26 is formed in a cross shape when viewed from above. That is, the first to fourth protrusions 26a to 26d protrude to the first to fourth sides respectively when viewed from above. To explain in more detail, the first to fourth protrusions 26a to 26d protrude to the first to fourth sides respectively.

[0027] Furthermore, in this embodiment, the third protrusion 26c has a first inclined surface 26e on the second direction side. The first inclined surface 26e faces the second side. Moreover, the first inclined surface 26e is inclined in a manner that widens towards the second direction side as it moves towards the first direction side. Also, in this embodiment, the fourth protrusion 26d has a second inclined surface 26f on the other side of the first direction. The second inclined surface 26f faces the third side. Moreover, the second inclined surface 26f is inclined in a manner that widens towards the other side of the first direction as it moves towards the second direction side.

[0028] Furthermore, the protruding ends of the first to fourth protrusions 26a to 26d each constitute the first to fourth surfaces 17a to 17d. Moreover, as described above, mounting holes 31 and first to fourth valve holes 32 to 35 are respectively provided on the first to fourth surfaces 17a to 17d. In this embodiment, the opening directions of the mounting holes 31 and the first to fourth valve holes 32 to 35 are consistent with the protruding directions of the respective first to fourth protrusions 26a to 26d. However, they do not necessarily have to be consistent. That is, the opening directions of the mounting holes 31 and the first to fourth valve holes 32 to 35 can also be inclined relative to the protruding directions of the respective first to fourth protrusions 26a to 26d, as long as they extend in all four directions.

[0029] More specifically, the mounting hole 31 and the first valve hole 32 are arranged parallel to each other on the first side of the mounting body 26. In this embodiment, the mounting hole 31 and the first valve hole 32 are arranged in a parallel manner, extending along the first side with their axes aligned. Furthermore, the mounting hole 31 is located on the side further in the second direction than the first valve hole 32. In addition, the first valve hole 32 extends further in the other direction than the mounting hole 31.

[0030] The second valve hole 33 is configured adjacent to the mounting hole 31. In this embodiment, the second valve hole 33 is disposed at an interval from the bottom of the mounting hole 31 on the opposite side of the first direction. Furthermore, the bottom portion of the first valve hole 32 is located on the extension line of the axis of the second valve hole 33. The third valve hole 34 is disposed parallel to the mounting hole 31 and the first valve hole 32. Additionally, a fourth valve hole 35 is configured adjacent to the first valve hole 32. In this embodiment, the middle portion of the first valve hole 32 is located on the extension line of the axis of the fourth valve hole 35.

[0031] <Inflow / Outflow Path> The inlet / outlet flow path 22 connects the inlet / outlet 21 to the inside of the tank 2. More specifically, the inlet / outlet flow path 22 has a main flow path 22a, a supply flow path 22b, and a filling flow path 22c. The main flow path 22a is disposed on the block body 17. Furthermore, the main flow path 22a is connected to the inlet / outlet 21. More specifically, the main flow path 22a is disposed on an imaginary plane P1. Moreover, the main flow path 22a is composed of a mounting hole 31, a first flow path portion 22aa, a second valve hole 33, a second flow path portion 22ab, and a first valve hole 32.

[0032] The first flow path portion 22aa connects the mounting hole 31 to the second valve hole 33. In this embodiment, the first flow path portion 22aa extends from the bottom surface of the mounting hole 31 along the axis of the mounting hole 31. Furthermore, the first flow path portion 22aa is connected to the second valve hole 33. Additionally, the first flow path portion 22aa is disposed on an imaginary plane P1. The second flow path portion 22ab connects the second valve hole 33 to the first valve hole 32. In this embodiment, the second flow path portion 22ab extends from the bottom surface of the second valve hole 33 along the axis of the second valve hole 33. Furthermore, the second flow path portion 22ab is connected to the bottom side of the first valve hole 32. Additionally, the second flow path portion 22ab is disposed on an imaginary plane P1.

[0033] The supply flow path 22b, serving as the first flow path, connects the main flow path 22a to the inside of the tank 2. Furthermore, the supply flow path 22b is disposed at the plug portion 16. More specifically, the supply flow path 22b is connected to the first valve hole 32. In this embodiment, one end of the supply flow path 22b is connected to the middle portion of the first valve hole 32. That is, the supply flow path 22b is connected to the main flow path 22a. Moreover, the supply flow path 22b extends from the first valve hole 32 toward the other side of the first axial direction and is parallel to the first axis L1. Furthermore, the other end of the supply flow path 22b opens into the tank 2.

[0034] The filling flow path 22c, serving as the second flow path, connects the main flow path 22a to the inside of the tank 2. Furthermore, the filling flow path 22c is positioned within the plug portion 16. More specifically, one end of the filling flow path 22c is connected to the first valve hole 32 at a position closer to the bottom than the supply flow path 22b. That is, the filling flow path 22c is connected to the main flow path 22a. The filling flow path 22c extends from the first valve hole 32 toward the other side of the first axial direction and is parallel to the first axis L1. Moreover, the other end of the filling flow path 22c opens into the tank 2. Additionally, a check valve (not shown) is provided on the filling flow path 22c. Thus, flow from the main flow path 22a to the tank 2 is allowed in the filling flow path 22c, while flow in the opposite direction is prevented.

[0035] <Exit Flow Path> The discharge flow path 23 is a different flow path from the inlet / outlet flow path 22. Furthermore, the discharge flow path 23 is disposed at the plug portion 16. More specifically, the discharge flow path 23 extends from the plug portion 16 to the block body 17. The discharge flow path 23 also has a discharge outlet 23a. The discharge outlet 23a is disposed on the second side. In this embodiment, the discharge outlet 23a is disposed on the first inclined surface 26e of the third protrusion 26c. Moreover, the discharge flow path 23 discharges gas from the tank 2 to the outside of the tank 2 through the discharge outlet 23a. More specifically, the discharge flow path 23 is composed of a first discharge flow path portion 23b, a second discharge flow path portion 23c, a third valve hole 34, and a third discharge flow path portion 23d.

[0036] The first discharge flow path portion 23b is disposed on the plug portion 16. In this embodiment, the first discharge flow path portion 23b extends along a first axial direction in the plug portion 16. Furthermore, the first discharge flow path portion 23b is disposed on the extension line of the axis of the third valve hole 34 from a top-view perspective. The other end of the first discharge flow path portion 23b is connected to the tank 2. The second discharge flow path portion 23c extends from the bottom surface of the third valve hole 34 along the axis of the third valve hole 34. Furthermore, the second discharge flow path portion 23c is connected to the first discharge flow path portion 23b. The third discharge flow path portion 23d is connected to the middle portion of the third valve hole 34. Furthermore, the third discharge flow path portion 23d is connected to the outside of the tank 2 via the discharge port 23a.

[0037] <Pressure relief flow path> As described above, the pressure relief flow path 24 is connected to the inside of the tank 2 via the inlet / outlet flow path 22. Furthermore, the pressure relief flow path 24 is connected to the outside of the tank 2. Therefore, the pressure relief flow path 24 can release gas from the tank 2. More specifically, the pressure relief flow path 24 is disposed on the block body 17. Moreover, the pressure relief flow path 24 is disposed on the imaginary plane P1. Furthermore, the pressure relief flow path 24 has a pressure relief port 24a. The pressure relief port 24a is disposed on the third side. In this embodiment, the pressure relief port 24a is disposed on the second inclined surface 26f of the fourth protrusion 26d. Furthermore, the pressure relief flow path 24 also has an upstream portion 24b, a fourth valve hole 35, and a downstream portion 24c.

[0038] The upstream portion 24b connects the first valve hole 32 and the fourth valve hole 35. In this embodiment, the upstream portion 24b extends from the bottom surface of the fourth valve hole 35 along its axis. Furthermore, the upstream portion 24b is connected to the middle portion of the first valve hole 32. Additionally, from a top-view perspective, the upstream portion 24b is axially aligned with the supply flow path portion 22b and circumferentially offset from it, connected to the middle portion of the first valve hole 32. The downstream portion 24c is connected to the fourth valve hole 35. Moreover, the downstream portion 24c opens to the outside of the tank 2 via the pressure relief port 24a. In this embodiment, the downstream portion 24c is connected to the middle portion of the fourth valve hole 35. Furthermore, the downstream portion 24c extends orthogonally to the second inclined surface 26f.

[0039] <Wiring Path> Wiring passage 25 connects the inside and outside of tank 2. Wiring 15b, described later, passes through wiring passage 25. Furthermore, wiring passage 25 intersects with inlet / outlet flow path 22 from a top-down perspective. In addition, wiring passage 25 is offset from inlet / outlet flow path 22 along the first axial direction. More specifically, wiring passage 25 passes through valve block 10 along the first axial direction. That is, wiring passage 25 passes through plug portion 16 and block body 17.

[0040] More specifically, the wiring passage 25 has a wiring insertion hole 25a and a wiring groove 25b. The wiring insertion hole 25a passes through the valve block 10 along the first axial direction. Furthermore, the wiring insertion hole 25a is connected to the inside of the tank 2 on the other side of the first axial direction. Moreover, on one side of the wiring insertion hole 25a along the first axial direction, such as... Figure 4 As shown, an opening is formed on the end face of the block body 17 on one axial side. A wiring groove 25b is disposed on the block body 17. Furthermore, the wiring groove 25b is connected to the wiring insertion hole 25a. More specifically, the wiring groove 25b is formed on the end face of the block body 17 on one axial side. Moreover, one end of the wiring groove 25b is connected to the wiring insertion hole 25a. Furthermore, the wiring groove 25b extends radially outward. Moreover, the wiring groove 25b opens radially outward on the outer peripheral surface of the block body 17. In this embodiment, the wiring groove 25b opens on the end face of the block body 17 on one axial side, on the surface of the fourth protrusion 26d in the first direction (i.e., the opposite side of the second inclined surface 26f).

[0041] <Positional relationships of flow paths, etc. in the plug section> The supply flow path 22b, filling flow path 22c, discharge flow path 23, and wiring passage 25 are arranged in the latch portion 16 as follows: The supply flow path 22b, filling flow path 22c, discharge flow path 23, and wiring passage 25 extend parallel to each other along a first axial direction in the latch portion 16. Furthermore, the supply flow path 22b, filling flow path 22c, discharge flow path 23, and wiring passage 25 are arranged as follows: Figure 5As shown, the bolt portion 16, viewed from a top-down angle, is located in each of the four quadrants of a quadrant with the first axis L1 of the bolt portion 16 as the origin O. The four quadrants are defined as four regions divided by straight lines extending in all four directions from the origin O on a cross-section perpendicular to the axis of the bolt portion 16. In this embodiment, the filling flow path 22c is located in the first quadrant, divided by straight lines extending from the origin O in the opposite direction to both the first and second directions. The supply flow path 22b is located in the second quadrant, divided by straight lines extending from the origin O in both the first and second directions. Furthermore, the wiring passage 25 is located in the third quadrant, divided by straight lines extending from the origin O in both the first and second directions, and the discharge flow path 23 is located in the fourth quadrant, divided by straight lines extending from the origin O in both the opposite direction to both the first and second directions.

[0042] Additionally, in this embodiment, the plug portion 16, as... Figure 1 As shown, it has a portion 16a on one side and a portion 16b on the other side in the axial direction. Furthermore, the bolt 16 is configured to be divisible into a portion 16a on one side and a portion 16b on the other side in the axial direction. The portion 16a on one side and the portion 16b on the other side in the axial direction are fastened by a fastening member 16c. Moreover, the fastening member 16c, such as... Figure 5 As shown, the fastening member 16 is configured to form a pentagon with the supply flow path 22b, the filling flow path 22c, the discharge flow path 23, and the wiring passage 25 in the plug portion 16 from a top-view perspective. In this embodiment, the fastening member 16c is disposed in the first quadrant. However, the fastening member 16c does not necessarily have to be disposed in the first quadrant.

[0043] <Entrance / Exit Bolt> like Figure 3 As shown, the inlet / outlet pin 27 has an inlet / outlet 21. The inlet / outlet pin 27 is mounted on the mounting body 26. Furthermore, the inlet / outlet pin 27 captures contaminants and the like contained in the gas flowing in and out of the inlet / outlet 21. More specifically, the inlet / outlet pin 27 extends along its second axis L2. Moreover, the end face of the inlet / outlet pin 27 on one side extending along the second axis L2 has the inlet / outlet 21. Additionally, the inlet / outlet pin 27 has an inner passage 27a extending along the second axis L2.

[0044] The inlet / outlet pin 27 is inserted into the mounting hole 31 with the inlet / outlet 21 facing the first side. Furthermore, the second axis L2 of the inlet / outlet pin 27 is disposed on an imaginary plane P1. Thus, the axis of the inlet / outlet 21 is disposed on the imaginary plane P1. Additionally, the axis of the inlet / outlet 21 passes through the center of the inlet / outlet 21 and is orthogonal to the inlet / outlet 21. In this embodiment, the axis of the inlet / outlet 21 coincides with the second axis L2. Moreover, the inlet / outlet pin 27 allows gas to flow back and forth between the inlet / outlet 21 and the main flow path 22a (more specifically, the first flow path 22aa) via the inner passage 27a.

[0045] Furthermore, the inlet / outlet pin 27 forms the second region 17f of the first surface 17a through the end face where the inlet / outlet 21 is formed. Additionally, in the block body 17, the inlet / outlet pin 27 and the mounting body 26 do not necessarily need to be separately constructed. That is, the inlet / outlet pin 27 can also be integrated with the mounting body 26. Furthermore, the inlet / outlet pin 27 does not necessarily need to have a filtering function. The block body 17 only needs to have the inlet / outlet 21.

[0046] <Manual Valve> Manual valve 11 is disposed on the valve block 10 outside the tank 2 and on its second side. Furthermore, manual valve 11 stops the flow in and out of the inlet / outlet flow path 22. More specifically, manual valve 11 is inserted into the second valve hole 33. Moreover, manual valve 11 is mounted on the second surface 17b of the block body 17 (more specifically, the mounting body 26). Thus, manual valve 11 is disposed on the second side of the block body 17. Furthermore, the axis L3 of manual valve 11 is disposed on the imaginary plane P1.

[0047] The manual valve 11, configured as described above, is disposed within the inlet / outlet flow path 22. Furthermore, the manual valve 11 is positioned relative to the inlet / outlet 21 on the extension of the second axis L2. The axis L3 of the manual valve 11 is configured to intersect the second axis L2 of the inlet / outlet 21. In this embodiment, the second axis L2 of the manual valve 11 is orthogonal to the axis L3 of the inlet / outlet 21. Moreover, the manual valve 11 is operated manually to stop the flow of gas in the inlet / outlet flow path 22.

[0048] <Solenoid valve> As previously described, the solenoid valve 12 is disposed on the valve block 10 outside the tank 2 and on its first side. Furthermore, the solenoid valve 12 opens and closes the inlet / outlet flow path 22. More specifically, the solenoid valve 12 is inserted into the first valve hole 32. Moreover, the solenoid valve 12 is mounted on the first surface 17a of the block body 17 (more specifically, the mounting body 26). Thus, the solenoid valve 12 is disposed on the first side of the block body 17. Furthermore, the axis L4 of the solenoid valve 12 is disposed on the imaginary plane P1.

[0049] To explain in more detail, the solenoid valve 12 is disposed in the inlet / outlet flow path 22 on the side closer to the tank 2 than the manual valve 11. Furthermore, in this embodiment, the solenoid valve 12 is arranged on the block body 17 with its axis L4 parallel to the second axis L2 of the inlet / outlet 21. Moreover, the solenoid valve 12 opens and closes the inlet / outlet flow path 22 according to the input signal.

[0050] In more detail, the solenoid valve 12 is configured as follows: The solenoid valve 12 forms a first annular space 32a and a second annular space 32b between itself and the first valve orifice 32. The first annular space 32a is located in the middle portion of the first valve orifice 32. Furthermore, the first annular space 32a is connected to the first flow path portion 22aa and the pressure relief flow path 24. The second annular space 32b is located at the bottom side of the first valve orifice 32. Furthermore, the second annular space 32b is connected to the second flow path portion 22ab and the filling flow path portion 22c. The solenoid valve 12 has a valve passage (not shown) connecting the two annular spaces 32a and 32b. Moreover, the solenoid valve 12 opens and closes the inlet and outlet flow paths 22 by opening and closing the valve passage. In this embodiment, the solenoid valve 12 is a solenoid valve with a reverse flow throttling valve. That is, the solenoid valve 12 restricts the flow of gas in the opposite direction to the flow of gas from the first annular space 32a to the second annular space 32b. Alternatively, solenoid valve 12 can be a solenoid valve with a check valve, or a solenoid valve without a backflow throttle valve or a check valve.

[0051] <Safety Valve> Safety valve 13, as previously described, is disposed on the valve block 10 outside the tank 2 and on its third side. Furthermore, safety valve 13 releases gas when the temperature outside the tank 2 exceeds a predetermined temperature. More specifically, safety valve 13 is inserted into a third valve hole 34. Moreover, safety valve 13 is mounted on the third surface 17c of the block body 17 (more specifically, the mounting body 26). Thus, safety valve 13 is located on the third side of the block body 17. Furthermore, the axis L3 of safety valve 13 is positioned closer to the tank 2 side than the imaginary plane P1 (i.e., on the other side in the direction of the first axis).

[0052] The safety valve 13, configured in this way, is disposed within the discharge flow path 23. More specifically, the safety valve 13 allows the valve body 13a to pass through the second discharge flow path portion 23c. Thus, the safety valve 13 closes the discharge flow path 23. Furthermore, from a top-down view, the safety valve 13 is positioned on the opposite side of the inlet / outlet 21, separated by the second flow path portion 22ab. Moreover, the axis L3 of the safety valve 13 is arranged parallel to the solenoid valve 12 from a top-down view.

[0053] Furthermore, the safety valve 13 is configured as follows. The safety valve 13 is, for example, a glass ball type safety valve. More specifically, the safety valve 13 has a glass ball (not shown). Moreover, in the safety valve 13, when the temperature around the tank 2 exceeds a specified temperature, the glass ball will break. As a result, the valve body 13a disengages from the second discharge flow path portion 23c. Furthermore, the second discharge flow path portion 23c opens, that is, the discharge flow path 23 opens. As a result, the gas inside the tank 2 is released to the outside of the tank 2 via the discharge flow path 23. Additionally, the gas released from the safety valve 13 is released to the outside of the tank 2 from the discharge port 23a. Therefore, the gas released from the safety valve 13 is released to the outside of the tank 2 in a manner that moves away from the manual valve 11 from a top-view perspective. Furthermore, the safety valve 13 is not limited to a glass ball type safety valve; it can also be a thrombus-type safety valve.

[0054] <Pressure relief valve> As previously described, the pressure relief valve 14 is disposed on the fourth side of the tank 2 on the valve block 10. The pressure relief valve 14 releases gas from the tank 2 to the outside. More specifically, the pressure relief valve 14 is inserted into the fourth valve hole 35. Furthermore, the pressure relief valve 14 is mounted on the fourth surface 17d of the block body 17 (more specifically, the mounting body 26). Thus, the pressure relief valve 14 is disposed on the fourth side of the block body 17. Moreover, the axis L4 of the pressure relief valve 14 is disposed on the imaginary plane P1.

[0055] The pressure relief valve 14 is configured such that it is disposed within the pressure relief flow path 24. Furthermore, the axis L6 of the pressure relief valve 14 is configured to intersect the axis L4 of the solenoid valve 12. In this embodiment, the axis L6 of the pressure relief valve 14 is orthogonal to the axis L4 of the solenoid valve 12. In this embodiment, the pressure relief valve 14 is a manually operable valve. Moreover, the pressure relief valve 14 can be manually operated to open the pressure relief flow path 24. Thus, gas inside the tank 2 can be released through the pressure relief valve 14. Additionally, the gas released from the pressure relief valve 14 is released from the pressure relief port 24a. Therefore, the gas released from the pressure relief valve 14 is released outside the tank 2 in a manner that, from a top-down perspective, moves away from the safety valve 13.

[0056] <Inlet / outlet configuration and four valves> As previously described, the manual valve 11, solenoid valve 12, safety valve 13, and pressure relief valve 14 are arranged squarely on the valve block 10. Furthermore, from a top-down perspective, the solenoid valve 12, manual valve 11, safety valve 13, and pressure relief valve 14 are arranged on the valve block 10 in a counter-clockwise order: solenoid valve 12, manual valve 11, safety valve 13, and pressure relief valve 14. Additionally, the axes L3, L4, and L6 of each of the manual valve 11, solenoid valve 12, and pressure relief valve 14 are arranged on an imaginary plane P1. Moreover, the axis L5 of the safety valve 13 is arranged on the side closer to the tank 2 than the imaginary plane P1.

[0057] <Sensors> like Figure 1As shown, sensor 15 is disposed in wiring passage 25. Sensor 15 detects the state of the gas inside tank 2. In this embodiment, sensor 15 is a temperature sensor that detects the temperature of the gas inside tank 2. More specifically, sensor 15 is inserted into wiring through hole 25a of wiring passage 25. Furthermore, the tip of sensor 15 with the detection part 15a faces into tank 2. Wiring 15b extends from sensor 15. Wiring 15b extends outward from valve block 10 through wiring passage 25. More specifically, wiring 15b passes through wiring through hole 25a into wiring groove 25b. Wiring 15b runs along wiring groove 25b. Furthermore, wiring 15b extends outward from valve block 10.

[0058] <Filling and Supply> In the valve block 10 configured as described above, when the first flow path portion 22aa is opened by the manual valve 11, gas can be filled into the tank 2 from the inlet / outlet 21 and gas can be discharged from the tank 2 to the inlet / outlet 21. For example, when filling the tank 2 with gas from the inlet / outlet 21, the gas is introduced from the inlet / outlet 21. Then, the gas is guided to the first valve hole 32 through the inner passage 27a of the inlet / outlet pin 27, the first flow path portion 22aa, the second valve hole 33, and the second flow path portion 22ab. Afterward, the gas is guided to the filling flow path portion 22c through the second annular space 32b. Moreover, the gas is filled into the tank 2 through the check valve (not shown) of the filling flow path portion 22c.

[0059] Furthermore, in this embodiment, the solenoid valve 12 is a solenoid valve with a reverse flow throttle valve. Therefore, during filling, the valve passage (not shown) of the solenoid valve 12 is opened, that is, the inlet / outlet flow path 22 is opened. Consequently, a portion of the gas guided to the first valve orifice 32 is guided from the second annular space 32b to the first annular space 32a through the valve passage. Afterward, the gas is filled into the tank 2 through the supply flow path 22b. Thus, in the tank valve device 1, a portion of the gas can be filled into the tank 2 via the solenoid valve 12.

[0060] On the other hand, when gas is supplied from tank 2 to inlet / outlet 21, a signal is input to solenoid valve 12. Solenoid valve 12 then opens inlet / outlet flow path 22. Thus, tank 2 is connected to inlet / outlet 21 via supply flow path 22b and inlet / outlet flow path 22. Therefore, gas from tank 2 is supplied to inlet / outlet 21.

[0061] In the tank valve device 1 of this embodiment, the inlet / outlet 21 and the solenoid valve 12 are disposed on the valve block 10 outside the tank 2 and on its first side. Furthermore, the manual valve 11 and the safety valve 13 are disposed on the valve block 10 outside the tank 2 and on its second and third sides, respectively. Therefore, the inlet / outlet flow path 22 can be concentrated in the central portion of the valve block 10, simplifying the structure of the inlet / outlet flow path 22. This allows for miniaturization of the valve block 10.

[0062] Furthermore, in the valve assembly 1, the inlet / outlet 21 and the solenoid valve 12 are mounted on the first surface 17a facing the first side of the valve block 10. The manual valve 11 faces the second surface 17b facing the second side, and the safety valve 13 is mounted on the third surface 17c facing the third side. Therefore, the manual valve 11, the solenoid valve 12, and the safety valve 13 can be arranged towards the central portion of the valve block 10. This simplifies the structure of the inlet / outlet flow path 22. Moreover, the valve block 10 can be miniaturized.

[0063] Furthermore, in the tank valve device 1, a pressure relief valve 14 is disposed on the fourth side of the valve block 10. Since the pressure relief valve 14 is disposed on the fourth side, which is different from the first to third sides where the solenoid valve 12, the manual valve 11, and the safety valve 13 are disposed, the valve block 10 can be made compact.

[0064] Furthermore, in the valve assembly 1, the second axes L2 to L4 of the inlet / outlet 21, the solenoid valve 12, and the manual valve 11 are respectively arranged on the imaginary plane P1. Therefore, the inlet / outlet flow path 22 can also be formed on the imaginary plane P1. As a result, the height of the valve block 10 in the first direction can be suppressed. That is, the valve block 10 can be made compact.

[0065] Furthermore, in the tank valve device 1, the axis L5 of the safety valve 13 is positioned closer to the tank 2 side than the imaginary plane P1. Thus, since the safety valve 13 is offset from the imaginary plane P1, the inlet / outlet flow path 22 and the outlet flow path 23 can be concentrated in the central portion of the block body 17. This allows for a compact valve block 10. For example, the outlet flow path 23 intersects the inlet / outlet flow path 22 from a top-view perspective and is offset from the inlet / outlet flow path 22 in the first axial direction. Therefore, the inlet / outlet flow path 22 and the outlet flow path 23 can be concentrated in the central portion of the block body 17. This allows for a compact valve block 10.

[0066] Furthermore, in the tank valve assembly 1, the inlet / outlet flow path 22 is disposed on an imaginary plane P1, and the safety valve 13 is offset from the imaginary plane P1 towards the tank 2 side. This allows for an increase in the wall thickness around the inlet / outlet flow path 22 in the valve block 10. In particular, while higher stresses occur at the intersections where the flow path sections intersect, the wall thickness of these sections is ensured. Moreover, by increasing the wall thickness around the inlet / outlet flow path 22, the increased stress acting on the intersections due to the fastening force when the tank valve assembly 1 is fastened to the tank 2 can be suppressed. This, in turn, prevents fatigue cracks from forming around the inlet / outlet flow path 22 in the valve block 10.

[0067] Furthermore, in the valve assembly 1, from a top-down view, the inlet / outlet flow path 22 and the wiring passage 25 intersect each other and are offset from each other in the first axial direction. Therefore, the wiring passage 25 can also be positioned in the central portion of the valve block 10. This allows the valve block 10 to be compact. To explain more specifically, from a top-down view, the inlet / outlet flow path 22 and the wiring groove 25b intersect each other and are offset from each other in the first axial direction. Therefore, the wiring insertion hole 25a can be positioned in the central portion of the valve block 10.

[0068] Furthermore, in the valve assembly 1, the solenoid valve 12 and the wiring passage 25 intersect each other and are offset from each other in the first axial direction. Therefore, the wiring passage 25 can also be arranged in the central portion of the valve block 10. This allows the valve block 10 to be compact. More specifically, in a top-view perspective, the solenoid valve 12 intersects with the wiring slot 25b and is offset from each other in the first axial direction. Therefore, the wiring insertion hole 25a can be arranged in the central portion of the valve block 10.

[0069] Furthermore, in the valve assembly 1, the outlet 23a is located on the second side. Therefore, the manual valve 11 can be located on the same side as the outlet 23a, in the same direction. Thus, even when the manual valve 11 is located below to improve its accessibility, the outlet 23a can still face downwards.

[0070] Furthermore, in the tank valve device 1, from a top-down view, the solenoid valve 12, the manual valve 11, and the safety valve 13 are arranged in this order in a counterclockwise direction centered on the first axis L1. The tank valve device 1 is installed in, for example, vehicles, machines, and equipment (hereinafter referred to as "vehicles, etc."). The solenoid valve 12 and the inlet / outlet 21 are arranged on either the front, rear, left, or right side of the vehicle, for example, the front side. Thus, the manual valve 11 and the outlet 23a can be arranged facing downwards. This ensures the ease of use of the piping (not shown) relative to the inlet / outlet 21 and the manual valve 11. Also, when gas is released from the safety valve 13, the gas can be released downwards.

[0071] Furthermore, in the valve device 1, the discharge flow path 23, the supply flow path 22b, the filling flow path 22c, and the wiring passage 25 are located in each of the four quadrants of the plug 16 from a top-down perspective, with the first axis L1 as the origin O. This prevents uneven distribution of the discharge flow path 23, the supply flow path 22b, the filling flow path 22c, and the wiring passage 25 on the plug 16. Therefore, even when the plug 16 has the discharge flow path 23, the supply flow path 22b, the filling flow path 22c, and the wiring passage 25 arranged on it, the strength of the plug 16 can be ensured.

[0072] Furthermore, in valve block 10, inlet / outlet 21 and solenoid valve 12 are disposed outside tank 2 on the first side. Also, manual valve 11 and safety valve 13 are disposed on valve block 10 outside tank 2 on the second and third sides, respectively. Therefore, the inlet / outlet flow path 22 can be concentrated in the central part of valve block 10, simplifying the structure of the inlet / outlet flow path 22. This allows for miniaturization of valve block 10.

[0073] <Regarding other implementation methods> In the valve device 1 of this embodiment, the manual valve 11, solenoid valve 12, safety valve 13, and pressure relief valve 14 do not necessarily need to be arranged as described above. The inlet / outlet 21, manual valve 11, solenoid valve 12, safety valve 13, and pressure relief valve 14 may also have their axes inclined, for example, towards the first axis. Furthermore, the inlet / outlet 21, manual valve 11, solenoid valve 12, and pressure relief valve 14 do not necessarily need to be arranged on the imaginary plane P1. Moreover, the wiring through the wiring passage 25 is not limited to the wiring 15b of the sensor 15. The wiring may also be the wiring of electronic devices other than the sensor 15. Furthermore, the wiring may also be the wiring of the solenoid valve 12.

[0074] Based on the foregoing description, many improvements and other embodiments of this disclosure will be apparent to those skilled in the art. Therefore, the foregoing description should be interpreted as illustrative only and is provided to teach those skilled in the art the best mode for performing this disclosure. Details of how the construction and / or function can be substantially changed without departing from the concept of this disclosure are also included.

Claims

1. A tank valve device, characterized in that, have: Installed at the mouth of the tank, including a fluid inlet / outlet and a valve block connecting the inlet / outlet to the flow path inside the tank; The solenoid valve that opens and closes the flow path; A manual valve to stop the flow in the described flow path; and A safety valve that releases fluid when the temperature outside the tank exceeds a specified temperature. The inlet / outlet and the solenoid valve are disposed on the valve block outside the tank, and are located on the first side of one of the four sides of the valve block. The manual valve and the safety valve are respectively disposed on the valve block outside the tank, serving as the second and third sides of two of the remaining three sides.

2. The tank valve device according to claim 1, characterized in that, The inlet / outlet and the solenoid valve are disposed on the first surface of the valve block facing the first side. The manual valve is disposed on the second side of the valve block facing the second side. The safety valve is disposed on the third side of the valve block facing the third side.

3. The tank valve device according to claim 1 or 2, characterized in that, It also includes a pressure relief valve that releases the fluid inside the tank to the outside. The pressure relief valve is disposed on the valve block on the fourth side outside the tank, which is different from the first to third sides of the four sides.

4. The tank valve device according to any one of claims 1 to 3, characterized in that, The valve block further includes: a block body disposed outside the tank; and a plug portion installed at the opening of the tank. The axes of the inlet / outlet, the solenoid valve, and the manual valve are each arranged on an imaginary plane orthogonal to the axis of the plug.

5. The tank valve device according to claim 4, characterized in that, The valve block includes a discharge flow path that is different from the inlet and outlet flow paths that form the flow path. The safety valve is connected to the discharge path, and the axis of the safety valve is positioned closer to the tank side than the imaginary plane.

6. The tank valve device according to claim 5, characterized in that, The discharge path, viewed along the axial direction of the plug, intersects the inlet and outlet paths but is offset from them in the axial direction of the plug.

7. The tank valve device according to any one of claims 1 to 6, characterized in that, The valve block further includes: a block body disposed outside the tank; a plug installed at the opening of the tank; and a wiring passage connecting the inside and outside of the tank and through which wiring passes. The wiring path, viewed along the axial direction of the plug, intersects the flow path and is offset from the flow path in the axial direction of the plug.

8. The tank valve device according to any one of claims 1 to 7, characterized in that, The valve block further includes: a block body disposed outside the tank; a plug installed at the opening of the tank; and a wiring path connecting the inside and outside of the tank and through which wiring passes. The solenoid valve, viewed axially along the plug, intersects with the wiring passage.

9. The tank valve device according to any one of claims 1 to 8, characterized in that, The valve block includes a discharge flow path that is different from the inlet and outlet flow paths that form the flow path. The discharge flow path has a discharge port for discharging the fluid. The outlet is located on the second side.

10. The tank valve device according to claim 9, characterized in that, The solenoid valve, the manual valve, and the safety valve, viewed from the opposite side of the tank through the valve block, are arranged on the valve block in a counterclockwise direction centered on the axis of the tank, in the order of the solenoid valve, the manual valve, and the safety valve.

11. The tank valve device according to any one of claims 1 to 10, characterized in that, The valve block includes: a block body disposed outside the tank; a plug installed at the opening of the tank; an inlet / outlet flow path serving as the flow path; a discharge flow path, different from the inlet / outlet flow path and disposed at the plug; and a wiring passage through which wiring passes. The inlet / outlet flow path includes: a main flow path section disposed on the block body and connected to the inlet / outlet; and a first flow path section and a second flow path section disposed on the plug section and respectively connecting the main flow path section to the inside of the tank. The wiring path is configured at the plug. The inlet / outlet, the solenoid valve, and the manual valve are located within the main flow path and are disposed on the block body. The safety valve is disposed in the discharge flow path and located in the block body. The discharge path, the first flow path section, the second flow path section, and the wiring passage are located in each of the four quadrants with the axis of the plug as the origin when viewed from the axial direction of the plug section.

12. A valve block, characterized in that, It is a valve block installed at the mouth of the tank, and has the following characteristics: Block body; Fluid inlet and outlet; The flow path connecting the inlet / outlet to the inside of the tank; Insert the first valve hole of the solenoid valve that opens and closes the flow path; Insert a second valve port with a manual valve that stops the flow in the flow path; and A third valve port is inserted for a safety valve that releases fluid when the fluid flowing in the flow path exceeds a specified temperature; The inlet / outlet and the first valve hole are disposed on the outside of the tank on the block body and are located on the first side of one of the four sides of the block body. The second valve hole and the third valve hole are respectively disposed on the outside of the tank on the block body, and serve as the second and third sides of two of the remaining three sides.

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