Nozzle head and tank valve device provided with same

Abstract

A nozzle head of a tank valve device attached to an opening of a tank is provided with: a nozzle body which is fastened to a valve block of the tank valve device by means of a fastening member, and which includes an outflow passage through which a fluid flows out of the tank; a filter embedded in the inlet portion of the outflow channel; and a cover member including a through-hole formed in a form corresponding to the outflow passage, the cover member being provided at the inlet portion and covering a peripheral edge portion of the filter, the cover member being jointly fastened to the valve block together with the nozzle body by a fastening member.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to a nozzle head of a tank valve device installed to a mouth portion of a tank and a tank valve device provided with the nozzle head. BACKGROUND

[0002] As a tank valve device provided to a mouth portion of a tank, there is known a tank valve of Patent Literature 1. The tank valve of Patent Literature 1 has a jet flow deflector member installed to a valve main body. A filter is arranged inside the jet flow deflector member.

[0003] PRIOR ART DOCUMENTS PATENT LITERATURE Patent Literature 1: Japanese Patent Application Publication No. 2013-64440 SUMMARY

[0004] PROBLEMS TO BE SOLVED BY THE INVENTION In the tank valve of Patent Literature 1, the filter is installed to the jet flow deflector member (corresponding to a nozzle main body of a nozzle head) by a C-ring. In the case of such an installation structure, a gap is generated between the filter and the C-ring. Therefore, the filter moves in use, that is, the filter is loose. Therefore, it is desired to provide an installation structure capable of firmly installing a filter provided to a flow outlet to a nozzle main body with a simple installation structure.

[0005] Here, an object of the present disclosure is to provide a nozzle head capable of firmly installing a filter provided to a flow outlet to a nozzle main body with a simple installation structure and a tank valve device.

[0006] MEANS FOR SOLVING THE PROBLEMS The nozzle head of the present disclosure is a nozzle head of a tank valve device installed to a mouth portion of a tank, which comprises: a nozzle main body fastened to a valve block of the tank valve device by a fastening member, including a flow-out passage through which a fluid flows out from the tank; a filter embedded in an inlet portion of the flow-out passage; and a cover member including a through-hole corresponding to the flow-out passage, provided to the inlet portion, covering a peripheral edge portion of the filter, the cover member being fastened to the valve block together with the nozzle main body by the fastening member.

[0007] According to the present disclosure, the cover member installed to the inlet portion in the form of covering the peripheral edge portion of the filter is fastened to the valve block together with the nozzle main body by the fastening member. That is, the filter is installed to the nozzle main body by being covered by the cover member and fastening the cover member together with the nozzle main body by the fastening member. Therefore, it is possible to firmly install the filter provided to the flow-out passage to the nozzle main body with a simple installation structure.

[0008] The tank valve device of the present disclosure comprises: the aforementioned nozzle head; and the valve block installed to the mouth portion of the tank in the tank valve device, having the nozzle head fixed thereto by the fastening member.

[0009] According to the present disclosure, the aforementioned function can be achieved.

[0010] Effects of Invention According to the present disclosure, a filter provided at a flow outlet can be securely mounted to a nozzle body in a simple mounting structure.

[0011] The above object, other objects, features and advantages of the present disclosure will become more apparent from the following detailed description of the preferred embodiments taken in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 is a front view showing a tank valve device of a first embodiment of the present disclosure; Figure 2 is a perspective view showing a nozzle head of the tank valve device of Figure 1 ; Figure 3 is a bottom view of the nozzle head of Figure 2 , viewed from a bottom side; Figure 4 is a sectional view of the nozzle head of Figure 3 , viewed as cut along a cut line IV-IV; Figure 5 is a sectional view of the nozzle head of Figure 3 , viewed as cut along a cut line V-V. DETAILED DESCRIPTION

[0013] Hereinafter, with reference to the aforementioned drawings, a tank valve device 1 according to an embodiment of the present disclosure will be described. Note that the concept of directions used in the following description is used for convenience of explanation, and the orientation of the structure of the present disclosure and the like is not limited to the directions. Also, the tank valve device 1 described below is only one embodiment of the present disclosure. Therefore, the present disclosure is not limited to the embodiment, and addition, deletion, and change can be made within the scope of the gist of the present disclosure.

[0014] <TANK VALVE DEVICE> Figure 1 The tank 2 shown in the drawing is capable of storing a fluid. In the present embodiment, the fluid is a gas. The tank valve device 1 is provided on the tank 2. The tank valve device 1 of the first embodiment, as shown in Figure 1 , is provided with a valve block 11, a nozzle head 12, and various valves 13, 14. The tank valve device 1 seals a mouth portion 2a of the tank 2. Thereby, the tank 2 is closed. Also, the tank valve device 1 is, for example, an on tank type tank valve device. The tank valve device 1 is capable of filling the tank 2 with the fluid, and discharging the fluid from the tank 2.

[0015] [VALVE BLOCK] The valve block 11 is a member extending in a prescribed direction. The prescribed direction is, for example, a direction along a prescribed axis Ll. The valve block 11 is mounted to the mouth portion 2a of the tank 2. Also, a block-side filling passage 11a and a block-side discharge passage 11b are formed in the valve block 11. A fluid (for example, a gas such as hydrogen) that fills the tank 2 flows in the block-side filling passage 11a, and a fluid that discharges from the tank 2 flows in the block-side discharge passage 11b.

[0016] More specifically, a plug portion 11c that is a part of the valve block 11 is inserted into the mouth portion 2a of the tank 2 as shown. The plug portion 11c is formed in a cylindrical shape, and seals the mouth portion 2a. Also, a block main body 11d that is a part of the valve block 11 protrudes outward from the mouth portion 2a. Various valves 13 to 15 are provided on the block main body 11d. Figure 1

[0017] [Nozzle head] The nozzle head 12, as shown in Figure 2 and Figure 3 , is provided with a nozzle main body 21, a filter 22, a cover member 23, and a fastening member 24. In addition, the nozzle head 12 is provided with a temperature sensor 25. The nozzle head 12, as shown in Figure 4 , is fixed to the valve block 11 by the fastening member 24. More specifically, the nozzle head 12 is formed in a cylindrical shape. Also, the nozzle head 12 is fastened to the tip end side portion of the valve block 11, that is, the plug portion 11c, by the fastening member 24. Therefore, the nozzle head 12 is located at the tip end side of the tank valve device 1, and is disposed inside the tank 2. Also, the nozzle head 12 ejects a fluid (for example, a gas such as hydrogen) that is supplied to the tank valve device 1, and causes the gas to fill into the tank 2, or causes the gas inside the tank 2 to flow out.

[0018] [Nozzle main body] The nozzle main body 21 is fastened to the valve block 11 by the fastening member 24. More specifically, the nozzle main body 21 is formed in a cylindrical shape. The nozzle main body 21 is fastened to the plug portion 11c in a manner in which one end surface thereof faces the axis direction of the plug portion 11c. Also, the nozzle main body 21, as shown in Figure 3 , includes a nozzle-side filling passage 21a and a nozzle-side discharge passage 21b. In addition, the nozzle main body 21 includes a fastening member insertion hole 21c.

[0019] The nozzle-side filling passage 21a, which is an example of an inflow passage, is a passage through which a fluid that fills into the tank 2 flows. The nozzle-side filling passage 21a is connected to the block-side filling passage 11a of the valve block 11 (see Figure 1 ), and causes the filled fluid to be ejected toward the tank 2. In the present embodiment, the nozzle-side filling passage 21a extends along the axis direction (see Figure 3 ​). Moreover, the nozzle side filling passage 21a opens at one end surface in the axial direction of the nozzle body 21. In addition, the nozzle side filling passage 21a does not necessarily need to be formed in a straight line in the axial direction, and may be curved or bent.

[0020] The nozzle side discharge channel 21b, which is an example of an outflow channel, is a channel through which the fluid discharged from the tank 2 flows. The nozzle side discharge channel 21b is connected to the block side discharge channel 11b of the valve block 11 (see Figure 1 ), directing the fluid within the tank 2 to the block-side discharge channel 11b. In this embodiment, the nozzle-side discharge channel 21b extends along the axial direction. Furthermore, the nozzle-side discharge channel 21b opens at one axial end face of the nozzle body 21. Furthermore, the inlet portion 21d, which serves as the opening of the nozzle-side discharge channel 21b, is formed to have a larger diameter than the remaining portion. Consequently, the inlet portion 21d is formed in a stepped shape. Specifically, the inlet portion 21d has a stepped portion 21e.

[0021] The fastening member insertion hole 21c is a hole for inserting the fastening member 24. In this embodiment, the fastening member insertion hole 21c extends along the axial direction. Furthermore, the fastening member insertion hole 21c opens at one axial end surface of the nozzle body 21. The opening of the fastening member insertion hole 21c is arranged so that, when viewed from the bottom side in the axial direction, the axis L1 is contained within a triangle whose center and the centers of the openings of the nozzle-side filling channel 21a and the nozzle-side discharge channel 21b form vertices. Furthermore, the fastening member insertion hole 21c is located on the opposite side of the temperature sensor 25 across the axis L1 when viewed from the bottom side.

[0022] Filter 22, such as Figure 5 As shown, the filter 22 is embedded in the inlet portion 21d of the nozzle-side discharge channel 21b. The filter 22 captures contaminants and the like contained in the fluid discharged from the tank 2 into the nozzle-side discharge channel 21b. More specifically, the filter 22 is a coin-shaped filter formed in a circular plate shape. In this embodiment, the filter 22 has an outer diameter that is the same as the pore diameter of the inlet portion 21d and is formed to be thinner than the depth of the inlet portion 21d. Furthermore, the filter 22 is embedded in the inlet portion 21d so that its outer peripheral edge is supported by the step portion 21e of the inlet portion 21d.

[0023] Cover member 23, such as Figure 3As shown, it includes a through-hole 31a. Furthermore, a cover member 23 is provided at the inlet portion 21d, covering the periphery of the filter 22. This connects the nozzle-side discharge passage 21b to the outside, i.e., the interior of the tank 2, via the through-hole 31a. Furthermore, the cover member 23 is fastened to the valve block 11 (more specifically, the plug portion 11c) along with the nozzle body 21 via a fastening member 24. Thus, the cover member 23, together with the step portion 21e, clamps the periphery of the filter 22, retaining the filter 22 at the inlet portion 21d. Furthermore, in this embodiment, the cover member 23, together with the filter 22, forms the filter structure 26.

[0024] Describing in more detail, the cover member 23 includes a cover body 31 and a pressing body 32. The cover body 31 is provided at the inlet portion 21d so as to cover the peripheral portion of the filter 22. Furthermore, the cover body 31 is fastened to the plug portion 11c together with the nozzle body 21. In this embodiment, the cover body 31 has an elliptical shape (e.g., a rounded trapezoid with semicircular corners at both ends) when viewed from above and is formed in a plate-like shape. Furthermore, a through hole 31a is formed at one end of the cover body 31 in the longitudinal direction, and a fastening member hole 31b is formed at the other end. The through hole 31a and the fastening member hole 31b extend through the cover body 31 in the thickness direction (in this embodiment, the axial direction) of the cover body 31. Furthermore, in this embodiment, the through hole 31a and the fastening member hole 31b are formed concentrically with the ends of the semicircular shape.

[0025] Furthermore, the cover 31, such as Figure 5 The cover 31 is shown with a protrusion 31c. The protrusion 31c is formed so as to protrude in the other direction of the axial direction around the through-hole 31a of the cover 31. The protrusion 31c is formed in a circular ring shape. The protrusion 31c fits into the inlet 21d of the nozzle-side discharge passage 21b. Furthermore, the cover 31 is positioned so that its tip is axially away from the filter 22.

[0026] Furthermore, the cover 31 has an annular mounting surface 31d. The mounting surface 31d is an annular surface that faces the filter 22. More specifically, the mounting surface 31d is formed on the cover 31 at the open end of the through-hole 31a. In this embodiment, the mounting surface 31d is formed on the outer peripheral edge of the tip of the protrusion 31c. The mounting surface 31d is formed into a tapered shape that expands as it moves away from the filter 22. In other words, the mounting surface 31d is formed into a tapered shape that expands in diameter as it moves toward one side of the axial direction. The mounting surface 31d is formed by C-chamfering the outer peripheral edge of the tip of the protrusion 31c.

[0027] The pressing body 32 presses the outer peripheral portion of the filter 22 toward the inlet portion 21d. To be more specific, the pressing body 32 is a member made of an elastic body such as synthetic rubber. Also, the pressing body 32 is formed in a circular ring shape. In the present embodiment, the pressing body 32 is a ring-shaped sealing member such as an O-ring. The pressing body 32 is attached to the attachment surface 31d. In the present embodiment, the pressing body 32 is attached to the attachment surface 31d from the outside. Also, the pressing body 32 protrudes from the attachment surface 31d toward the filter 22 and presses the filter 22 in a flattened state. Thus, the outer peripheral portion of the filter 22 is pressed by the pressing body 32 toward the stepped portion 21e of the inlet portion 21d. As a result, the pressing body 32 sandwiches the stepped portion 21e and the filter 22 and holds the filter 22 in the inlet portion 21d.

[0028] The fastening member 24 fastens the nozzle body 21 together with the cover member 23 to the valve block 11, as shown. To be more specific, the fastening member 24 is a bolt and is inserted into the fastening member insertion hole 21c. Also, the fastening member 24 is screwed into the valve block 11 (to be more specific, the block portion 11c). Also, the fastening member 24 abuts against the head portion of the fastening member 24 and the cover member 23, thereby sandwiching the nozzle body 21 and the cover member 23 together with the valve block 11. Figure 4

[0029] The temperature sensor 25 measures the temperature of the fluid in the tank 2. The temperature sensor 25 is formed in a rod shape. The temperature sensor 25 is arranged so as to pass through the nozzle body 21 in the axial direction. Also, the temperature sensor 25 protrudes from the nozzle body 21 at the tip end side and measures the temperature in the tank 2 by the detection portion 25a located at the center side.

[0030] In the tank valve device 1, when the fluid is supplied from a not-shown filling port, the fluid is guided into the tank 2 through the block side filling passage 11a and the nozzle side filling passage 21a, and the tank 2 is filled with the fluid. Also, in the tank valve device 1, the fluid in the tank 2 is discharged from the tank valve device 1 through the block side discharge passage 11b from the nozzle side discharge passage 21b. At this time, the contaminants contained in the discharged fluid are captured by the filter 22. As a result, the contaminants contained in the discharged fluid can be further suppressed.

[0031] In the nozzle head 12 of the present embodiment, the cover member 23 attached to the inlet portion 21d in a manner of covering the peripheral portion of the filter 22 is fastened together with the nozzle body 21 to the valve block 11 by the fastening member 24. That is, the filter 22 is attached to the nozzle body 21 by being covered by the cover member 23 and being fastened together with the cover member 22 by the fastening member 24. Thus, the filter 22 provided in the nozzle side discharge passage 21b can be firmly attached to the nozzle body 21 with a simple attachment structure.

[0032] ​Further, in the nozzle head 12 of the present embodiment, the filter 22 is a coin type filter, and is inserted into the inlet portion 21d in a manner that the outer peripheral edge is supported by the stepped portion 21e of the inlet portion 21d. Thus, by inserting the filter 22 into the inlet portion 21d, it is possible to arrange the filter 22 in the inlet portion 21d. Therefore, the arrangement of the filter 22 is easy.

[0033] Further, in the nozzle head 12 of the present embodiment, the pressing body 32 that presses and holds the outer peripheral edge portion of the filter 22 against the inlet portion 21d is composed of an elastic member. Thus, it is possible to suppress the outer peripheral edge portion of the filter 22 from being crushed and damaged at the time of being held.

[0034] Further, in the nozzle head 12 of the present embodiment, the mounting surface 31d on which the pressing body 32 is mounted is formed in a tapered shape. Thus, it is possible to press the pressing body 32 against the filter 22 without a gap, and it is possible to suppress the pressing body 32 from coming out of the through-hole 31a due to a reduction in diameter or the like.

[0035] Further, in the nozzle head 12 of the present embodiment, the nozzle side filling passage 21a that allows the fluid to flow into the tank 2 is formed in the nozzle body 21. That is, in the nozzle body 21, the flow path 21a, 21b that allows the fluid to flow in and out with respect to the tank 25 are respectively formed. Thus, it is possible to suppress the contaminants or the like that are captured when the fluid flows into the tank 2 via the filter 22 from returning to the nozzle side discharge passage 21b at the time of flowing out.

[0036] Further, in the tank valve device 1 of the present embodiment, the functions described above can be achieved.

[0037] <Other Embodiments> In the tank valve device 1, the nozzle head 12 is formed in a circular cylindrical shape in a plan view, but can also be formed in a semicircular shape or a quarter circular cylindrical shape in a plan view. In the case of a semicircular shape, for example, the temperature sensor 25 is arranged outside the nozzle head. Also, the mounting surface 31d of the cover member 23 does not necessarily have to be tapered. At this time, for example, a stepped portion or a groove or the like can be formed in the opening end of the protruding portion 31c to be caught in a manner that the pressing body 32 is not introduced into the through-hole 31a. Also, the pressing body 32 does not necessarily have to abut against the filter 22, or can not be provided. Further, the temperature sensor 25 does not necessarily have to be provided, and the shape and arrangement are not limited to the structure described above.

[0038] <Example Embodiments> The nozzle head in the first aspect is a nozzle head of a tank valve device installed to a mouth portion of a tank, and includes: a nozzle body fastened to a valve block of the tank valve device by a fastening member, including a flow-out passage through which a fluid flows out from the tank; a filter embedded in an entrance portion of the flow-out passage; and a cover member including a through-hole corresponding to the flow-out passage, provided to the entrance portion, covering a peripheral edge portion of the filter, the cover member being fastened to the valve block together with the nozzle body by the fastening member.

[0039] According to the above aspect, the cover member installed to the entrance portion in a manner of covering the peripheral edge portion of the filter is fastened to the valve block together with the nozzle body by the fastening member. That is, the filter is installed to the nozzle body by being covered by the cover member and fastening the cover member together by the fastening member. Therefore, the filter provided to the flow-out passage can be firmly installed to the nozzle body with a simple installation structure.

[0040] In the nozzle head in the second aspect, the entrance portion has a step portion, and the filter is a coin-type filter that supports an outer peripheral edge to the step portion and is embedded in the entrance portion.

[0041] According to the above aspect, the filter is a coin-type filter and is embedded in a manner of supporting the outer peripheral edge to the step portion of the entrance portion. Therefore, by embedding the filter in the entrance portion, the filter can be arranged in the entrance portion, and thus the arrangement of the filter is easy.

[0042] In the nozzle head in the third aspect, the cover member includes: a cover body that covers the peripheral edge portion of the filter and is fastened to the valve block together with the nozzle body; and a press body that is provided between the cover body and the filter, presses the outer peripheral edge portion of the filter toward the entrance portion, the press body being composed of an elastic body.

[0043] According to the above aspect, the press body that presses and clamps the outer peripheral edge portion of the filter to the entrance portion is composed of an elastic member. Therefore, it is possible to suppress the outer peripheral edge portion of the filter from being crushed and damaged when clamped.

[0044] In the nozzle head in the fourth aspect, the cover member has a ring-shaped mounting surface facing the filter, the press body is a ring-shaped elastic body mounted to the mounting surface of the cover member, and the mounting surface is formed in a tapered shape that expands in an outer shape as it moves away from the filter.

[0045] According to the above aspect, the mounting surface on which the press body is mounted is formed in a tapered shape. Therefore, it is possible to suppress the press body from coming out of the through-hole due to a reduction in diameter or the like while ensuring the pressing load of the press body that presses the filter.

[0046] In the nozzle head in the fifth aspect, in any one of the first to fourth aspects, the nozzle body includes an inflow passage that causes the fluid to flow into the tank.

[0047] According to the above aspect, the inflow passage that causes the fluid to flow into the tank is formed in the nozzle body. That is, in the nozzle body, the flow path that causes the fluid to flow into and out of the tank is respectively constituted. Therefore, it is possible to suppress the contaminants and the like captured when the fluid flows into the tank via the filter from returning to the outflow passage at the time of outflow.

[0048] The tank valve device in the sixth aspect is provided with: the nozzle head in any one of the first to fifth aspects; and the valve block that is mounted to the mouth portion of the tank in the tank valve device, and that has the nozzle head fixed by the fastening member.

[0049] According to the above aspect, the functions described above can be achieved.

[0050] From the above description, many modifications, other embodiments of the present disclosure will be apparent to those skilled in the art. Therefore, the above description should be interpreted only as an illustration, and is provided to teach those skilled in the art the best mode for carrying out the present disclosure. The detailed description can be substantially changed in its configuration and / or function without departing from the idea of the present disclosure.

[0051] Symbol explanation: 1: tank valve device; 2: tank; 2a: mouth portion; 11: valve block; 12: nozzle head; 21: nozzle body; 21a: nozzle side filling passage (inflow passage); 21b: nozzle side discharge passage (outflow passage); 21d: inlet portion; 21e: step portion; 22: filter; 23: cover member; 24: fastening member; 31: cover body; 31a: through hole; 31d: mounting surface; 32: pressing body.

Claims

1. A spout head that is a spout head of a can valve device installed to a mouth portion of a can, characterized by, Possessing: a nozzle body which is fastened to a valve block of the tank valve device by a fastening member, includes an outflow passage which causes fluid to flow out from the tank; a filter which is embedded in an entrance portion of the outflow passage; and a cover member which includes a through-hole corresponding to the outflow passage, is provided at the entrance portion, and covers a peripheral portion of the filter, the cover member is fastened to the valve block together with the nozzle body by the fastening member.

2. The nozzle head according to claim 1, wherein the entrance portion has a stepped portion, the filter is a coin-shaped filter which supports an outer periphery on the stepped portion and is embedded in the entrance portion.

3. The nozzle head according to claim 2, wherein the cover member includes a cover which covers the peripheral portion of the filter and is fastened to the valve block together with the nozzle body, and a presser which is provided between the cover and the filter and presses the outer peripheral portion of the filter toward the entrance portion, the presser is composed of an elastic body.

4. The nozzle head according to claim 3, wherein the cover member has an annular mounting surface which faces the filter, the presser is an annular elastic body which is mounted to the mounting surface of the cover member, the mounting surface is formed in a conical shape which expands in an outer shape as it moves away from the filter.

5. The nozzle head according to claim 1, wherein the nozzle body includes an inflow passage which causes fluid to flow into the tank. Possessing:

6. A can valve apparatus characterized by, the nozzle head according to any one of claims 1 to 5; and the valve block which is mounted to a mouth portion of the tank in the tank valve device and has the nozzle head fixed thereto by the fastening member. ​

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