Holding jig

Abstract

To make it easier to hold a hydrant valve.SOLUTION: A holding jig 100 for holding a hydrant valve is provided, the holding jig comprising: a support part 10 having an annular shape matching an outer periphery of a hydrant valve; an engagement parts 20, each including a protruded portion 22 protruding from an inner periphery F of the support part 10 to engage with a flange portion provided on the outer periphery (of the hydrant valve); and first and second grips 30a, 30b to be held by an operator, provided on the support part 10.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a holding jig for holding a hydrant valve. [Background technology]

[0002] A refueling system known as the hydrant system is known at airport fuel supply facilities. The hydrant system delivers aviation fuel from storage tanks to the apron (parking area) through underground transport pipes.

[0003] In a hydrant-type refueling system, a hydrant valve is connected to a transport pipe at a fuel refueling point on the apron, and fuel can be supplied to an aircraft from this hydrant valve via a refueling vehicle.

[0004] Here, the hydrant valve serves to connect the transport pipe and the refueling vehicle, and also has the function of quickly closing the valve to stop the supply of fuel if an abnormality occurs in the fuel supply in the transport pipe or in the hydrant valve itself. Therefore, hydrant valves are inspected regularly to ensure their performance.

[0005] Therefore, Patent Document 1 discloses an inspection jig for inspecting the performance of hydrant valves. With the technology of Patent Document 1, an inspection jig is attached to a hydrant valve that has been removed from a transport pipe and then inspected. Then, once the inspection is complete, the hydrant valve is reattached to the transport pipe. Currently, workers manually attach and detach hydrant valves.

[0006] In addition to weighing approximately 30 to 50 kg, hydrant valves are located in underground hydrant pits, so attaching and detaching them places a great physical strain on workers. [Prior art documents] [Patent documents]

[0007] [Patent Document 1] Patent No. 6622869 Summary of the Invention [Problem to be solved by the invention]

[0008] However, the hydrant valve itself is shaped to be difficult for workers to hold, which increases the physical burden on workers when attaching and detaching the hydrant valve. In consideration of the above, an object of the present invention is to make the hydrant valve easier to hold. [Means for solving the problem]

[0009] [1] A jig for holding a hydrant valve, comprising: an annular support portion that conforms to the outer peripheral surface of the hydrant valve; an engaging portion that includes a protrusion that protrudes from the inner peripheral surface of the support portion and engages with a flange portion provided on the outer peripheral surface; and first and second gripping portions that are provided on the support portion and can be grasped by an operator.

[0010] [2] The first gripping portion and the second gripping portion are the holding jig of [1] that protrude in a direction parallel to the central axis of the support portion.

[0011] [3] A holding jig of [1] or [2], wherein the support portion includes a first portion and a second portion along the circumferential direction of the hydrant valve, the first portion includes a first end portion and a second end portion, and the second portion includes a third end portion and a fourth end portion, and further includes a first connecting portion connecting the first end portion and the third end portion, and a second connecting portion connecting the second end portion and the fourth end portion, and at least one of the first connecting portion and the second connecting portion is capable of being released from the connection, and when the connection is released in the one portion, the first portion and the second portion can rotate around the other of the first connecting portion and the second connecting portion.

[0012] [4] A holding jig according to [3], wherein the first connecting portion is a ball lock pin that is inserted in a direction parallel to the central axis through a through hole provided at the first end and a through hole provided at the third end, and the second connecting portion is a ball lock pin that is inserted in a direction parallel to the central axis through a through hole provided at the second end and a through hole provided at the fourth end.

[0013] [5] A holding jig according to any one of [1] to [4], wherein the engaging portion is separate from the supporting portion and is connected to the supporting portion by a removable fastener.

[0014] [6] A holding jig according to any one of [1] to [5], wherein the surface of the protruding portion facing the lower surface of the flange portion is an inclined surface.

[0015] [7] The holding jig according to any one of [1] to [6], wherein there are a plurality of engaging portions, and the plurality of engaging portions are provided at predetermined intervals on the inner peripheral surface of the support portion. [Effects of the Invention]

[0016] The holding jig of the present invention makes it easier to hold the hydrant valve. [Brief explanation of the drawings]

[0017] [Figure 1] FIG. 2 is a perspective view of a holding jig according to the present embodiment. [Figure 2] FIG. 2 is a plan view of the holding jig according to the embodiment. [Figure 3] FIG. 2 is a side view of the holding jig according to the embodiment. [Figure 4] 10A to 10C are explanatory diagrams illustrating an example of a procedure for attaching the holding jig according to the present embodiment to a hydrant valve. [Figure 5] 1 is a perspective view of the holding jig according to the present embodiment in a state where the first and second parts are disconnected from each other. FIG. [Figure 6] 3A and 3B are a plan view and a side view of an engagement portion according to the present embodiment. [Figure 7] FIG. 2 is a perspective view of a holding jig according to the present embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0018] Fig. 1 is a perspective view of a holding jig 100 according to this embodiment, Fig. 2 is a plan view of the holding jig 100 according to this embodiment, and Fig. 3 is a side view of the holding jig 100 according to this embodiment. The holding jig 100 of this embodiment is a jig for holding a hydrant valve 90. Fig. 4 shows an example of the procedure for attaching the holding jig 100 to the hydrant valve 90. In the following description, an axis parallel to the vertical axis will be referred to as the Y-axis, and an axis parallel to the horizontal axis will be referred to as the X-axis.

[0019] The hydrant valve 90 is placed in an underground hydrant pit M and is connected to a transport pipe L. The holding jig 100 can be removably attached to the hydrant valve 90. For example, the holding jig 100 is used when removing the hydrant valve 90 from the hydrant pit M or when installing the hydrant valve 90 in the hydrant pit M.

[0020] As illustrated in Figures 1 and 2, the holding jig 100 of this embodiment includes a support portion 10, an engagement portion 20, a first gripping portion 30a, a second gripping portion 30b, a first connecting portion 41, and a second connecting portion 42.

[0021] The support part 10 is an annular part that follows the outer peripheral surface of the hydrant valve 90. When viewed in a plan view in Figure 2, the central axis P (central axis of the inner diameter) of the support part 10 is an axis parallel to the Y axis. In other words, the part in which a through hole corresponding to the hydrant valve 90 is provided is the support part 10. The through hole of the support part 10 passes through along the Y axis. The axis parallel to the central axis of the through hole of the support part 10 is the Y axis. Specifically, at least the inner peripheral surface F of the support part 10 is shaped to follow the outer peripheral surface of the hydrant valve 90. Therefore, as illustrated in Figure 2, the inner peripheral surface F of the support part 10 is approximately circular in a plan view when viewed from a direction parallel to the Y axis.

[0022] 1 and 2, the support portion 10 of this embodiment includes a first portion 11 and a second portion 12 arranged along the circumferential direction of the hydrant valve 90. The first portion 11 and the second portion 12 are connected to each other by a first connecting portion 41 and a second connecting portion 42. Fig. 5 is a perspective view of the holding jig 100 in a state in which the connection between the first portion 11 and the second portion 12 is released.

[0023] In other words, when the outer peripheral surface of the hydrant valve 90 is divided into two equal sections along the circumferential direction, the portion corresponding to one section is the first section 11, and the portion corresponding to the other section is the second section 12. The first section 11 includes a first end E1 and a second end E2, and the second section 12 includes a third end E3 and a fourth end E4.

[0024] The engaging portion 20 is a portion that engages with the outer peripheral surface of the hydrant valve 90. As illustrated in Figure 2, the outer peripheral surface of the hydrant valve 90 has a flange portion 91, and the engaging portion 20 engages with this flange portion 91.

[0025] In this embodiment, a plurality of (six in this embodiment) engaging portions 20 are provided on the support portion 10. The engaging portions 20 are provided at predetermined intervals on the inner peripheral surface F of the support portion 10. It is preferable that the first portion 11 and the second portion 12 each have one or more engaging portions 20. Typically, the first portion 11 and the second portion 12 each have the same number of engaging portions 20 (three each in this embodiment).

[0026] Each engagement portion 20 is separate from the support portion 10. The support portion 10 and the engagement portion 20 are connected by a removable fastener G (e.g., a screw). The configuration in which the engagement portion 20 and the support portion 10 are separate and connected by a fastener G has the advantage that, for example, the engagement portion 20 can be easily replaced when it wears out.

[0027] FIG. 6 is a plan view and a side view focusing only on the engaging portion 20. For convenience, FIG. 6 also illustrates a W axis that is perpendicular to the Y axis. The W axis may be parallel to the X axis. As illustrated in FIG. 6, the engaging portion 20 of this embodiment includes an attachment portion 21 and a protrusion 22. As illustrated in FIG. 1, the attachment portion 21 is a portion to which the support portion 10 is attached. The attachment portion 21 is attached, for example, by a fastener G so as to fit into a notch provided in the inner peripheral surface F of the support portion 10.

[0028] The protrusion 22 is a portion that protrudes from the inner circumferential surface F of the support part 10 when the engagement part 20 is attached to the support part 10. Specifically, the protrusion 22 is a portion that protrudes from the inner circumferential surface F of the support part 10 in a direction that intersects (typically perpendicular to) the Y axis (in the example of FIG. 6, in the negative direction of the W axis).

[0029] 6, the protrusion 22 of this embodiment includes a first member 223 and a second member 225. In a side view, the attachment portion 21 and the second member 225 are located on opposite sides of the first member 223. The attachment portion 21 is the portion of the first member 223 that protrudes in the positive direction of the W axis at the end of the first member 223 that is on the positive side of the Y axis. The second member 225 is the portion of the first member 223 that protrudes in the negative direction of the W axis at the end of the first member 223 that is on the negative side of the Y axis.

[0030] 6, the upper surface K of the second portion 12 (the surface in the positive direction of the Y axis) is an inclined surface. The upper surface K of the second portion 12 is a surface that faces the lower surface of the flange portion 91 of the hydrant valve 90. Note that the portion of the lower surface of the flange portion 91 that corresponds to the upper surface K of the second portion 12 is an inclined surface that corresponds to the upper surface K.

[0031] Specifically, the upper surface K of the second portion 12 is an inclined surface that slopes in the negative direction of the Y axis from the surface of the first member 223. By including an inclined surface in the protrusion 22, it becomes easier to engage with the flange portion 91 of the hydrant valve 90 when attaching the support part 10 to the hydrant valve 90, compared to a configuration in which the upper surface K of the second portion 12 is not an inclined surface.

[0032] 1 and 5, the first connecting portion 41 allows the first end E1 of the first portion 11 to be connected to and disconnected from the third end E3 of the second portion 12. Similarly, the second connecting portion 42 allows the second end E2 of the first portion 11 to be connected to and disconnected from the fourth end E4 of the second portion 12.

[0033] 5, a through hole H1 through which the first connecting portion 41 is inserted is provided at the first end E1 of the first portion 11, and a through hole H3 through which the first connecting portion 41 is inserted is provided at the third end E3 of the second portion 12. Furthermore, a through hole H2 through which the second connecting portion 42 is inserted is provided at the second end E2 of the first portion 11, and a through hole H4 through which the second connecting portion 42 is inserted is provided at the fourth end E4 of the second portion 12.

[0034] In this embodiment, the first connecting portion 41 and the second connecting portion 42 are each a ball lock pin, from the viewpoint of facilitating connection and disconnection between the first portion 11 and the second portion 12. A ball lock pin is a fastener in which, when the button on the head is pressed, the ball is drawn into the pin, unlocking it, and when the button is released, the ball comes out of the pin, locking it in place. The first connecting portion 41 and the second connecting portion 42 are inserted in a direction parallel to the Y axis (center axis P).

[0035] Fig. 7 is a perspective view of the holding jig 100 in a state in which the first connecting portion 41 has released the connection between the first end E1 and the third end E3. As illustrated in Fig. 7, when one of the first connecting portion 41 and the second connecting portion 42 (the second connecting portion 42 in Fig. 7) is removed, the first portion 11 and the second portion 12 are rotatable around the other (the first connecting portion 41 in Fig. 7). In other words, the first portion 11 and the second portion 12 are rotatably supported by the second connecting portion 42.

[0036] 1 to 3, the first gripping portion 30a and the second gripping portion 30b are provided on the support portion 10 and are portions to be held by an operator. The first gripping portion 30a is provided on a first portion 11 of the support portion 10, and the second gripping portion 30b is provided on a second portion 12 of the support portion 10.

[0037] 1 and 3, the first gripping portion 30a and the second gripping portion 30b of this embodiment protrude in a direction (positive direction of the Y axis) parallel to the Y axis (the central axis P of the support portion 10). Having the first gripping portion 30a and the second gripping portion 30b protrude in a direction parallel to the Y axis has the advantage that an operator can easily grasp the first gripping portion 30a and the second gripping portion 30b from above (positive direction of the Y axis). Specifically, the first gripping portion 30a and the second gripping portion 30b are provided on the surface of the support portion 10 in the positive direction of the Y axis.

[0038] The shapes of first gripping portion 30a and second gripping portion 30b are not particularly limited, but are preferably a shape that can be gripped with fingers (U-shaped in FIG. 3). Note that first connecting portion 41 and second connecting portion 42 can be attached and detached (connection and disconnection of first portion 11 and second portion 12) from the surface of support portion 10 on the side where first gripping portion 30a and second gripping portion 30b are provided.

[0039] An example of the procedure for removing the hydrant valve 90 using the holding jig 100 will be described using Figure 4. First, with one of the first connecting portion 41 and the second connecting portion 42 (second connecting portion 42 in Figure 4) detached, the support portion 10 is positioned so that the engaging portion 20 engages with the flange portion 91 of the hydrant valve 90. Then, the first portion 11 (first end E1) and the second portion 12 (third end E3) are connected by the second connecting portion 42. Once the attachment of the holding jig 100 to the hydrant valve 90 is complete, the hydrant valve 90 can be lifted by gripping the first gripping portion 30a and the second gripping portion 30b.

[0040] On the other hand, when installing the hydrant valve 90 in the hydrant pit M, the first gripping portion 30a and the second gripping portion 30b are gripped to return the hydrant valve 90 to the pit M, and then the holding jig 100 can be removed by detaching one of the first connecting portion 41 and the second connecting portion 42. When one of the first connecting portion 41 and the second connecting portion 42 is removed from the support portion 10, the first part 11 and the second part 12 can rotate around the other, making it easy to attach and detach the holding jig 100 to the hydrant valve 90.

[0041] As can be understood from the above explanation, by using the holding jig 100 of this embodiment, it is possible to hold the hydrant valve 90 more easily than in a configuration in which the hydrant valve 90 is held directly by a worker. Note that the hydrant valve 90 itself is a ready-made product, and it is difficult to modify it into a shape that is easier for a worker to hold. Therefore, the detachable holding jig 100 of the present invention is effective.

[0042] <Modification> The above-described exemplary embodiments can be modified in various ways. Specific modified embodiments are exemplified below. Two or more embodiments selected from the following examples can also be combined as appropriate.

[0043] (1) In the above-described embodiment, the engaging portion 20 and the supporting portion 10 are separate bodies and connected by a removable fastener G, but a configuration in which the supporting portion 10 and the engaging portion 20 are integrated can also be adopted.

[0044] (2) The number and shape of the engaging portions 20 are not limited to the above examples. For example, a configuration may be adopted in which one engaging portion 20 is provided along the circumferential direction of the inner circumferential surface F in the first portion 11, and one engaging portion 20 is provided along the circumferential direction of the inner circumferential surface F in the second portion 12. A configuration in which multiple engaging portions 20 are provided on the inner circumferential surface F of the support portion 10 has the advantage that, for example, only the engaging portions 20 in worn locations can be replaced.

[0045] Furthermore, it is not essential that the engaging portion 20 include an inclined surface (the upper surface K of the second member 225 in FIG. 5). For example, the upper surface K of the second member 225 may be perpendicular to the first member 223. As can be understood from the above explanation, the shape of the protruding portion 22 in the engaging portion 20 is arbitrary as long as it includes a surface that abuts (engages) with the lower surface of the flange portion 91 of the hydrant valve 90 (the upper surface K of the second member 225 in FIG. 5).

[0046] (3) The shape of the support part 10 is not limited to the above examples. For example, if the support part 10 has a mechanism that can expand and contract the inner diameter and can be attached to and detached from the hydrant valve 90, it is not essential that the support part 10 be divided into the first part 11 and the second part 12.

[0047] (4) The first connecting portion 41 is not limited to a ball lock pin as long as it can connect and release the connection between the first end E1 and the third end E3. Similarly, the second connecting portion 42 is not limited to a ball lock pin as long as it can connect and release the connection between the second end E2 and the fourth end E4.

[0048] Furthermore, one of the first connecting portion 41 and the second connecting portion 42 may be configured so that the connection between the first portion 11 and the second portion 12 cannot be released (however, the first portion 11 and the second portion 12 can rotate around that one portion). As can be understood from the above explanation, it is sufficient that at least either the first connecting portion 41 or the second connecting portion 42 can release the connection between the first portion 11 and the second portion 12. [Explanation of symbols]

[0049] 10: Support part 11: 1st part 12:Second part 20: Engagement part 21: Mounting part 30a: 1st grip part 30b: 2nd grip part 41: 1st connection part 42:Second connection part 90: Hydrant valve 91: Flange part 100: Holding jig 223: First member 225: Second member G: Fastener P: Central axis

Claims

1. A jig for holding a hydrant valve, an annular support portion along an outer peripheral surface of the hydrant valve; an engaging portion including a protruding portion protruding from an inner peripheral surface of the support portion and engaging with a flange portion provided on the outer peripheral surface; a first gripping portion and a second gripping portion provided on the support portion and adapted to be gripped by an operator; A holding jig comprising:

2. The first gripping portion and the second gripping portion protrude in a direction parallel to the central axis of the support portion. The holding jig of claim 1.

3. The support portion includes a first portion and a second portion along a circumferential direction of the hydrant valve, the first portion includes a first end and a second end; the second portion includes a third end and a fourth end; a first connecting portion connecting the first end portion and the third end portion; a second connecting portion connecting the second end and the fourth end, At least one of the first connecting portion and the second connecting portion is capable of being released from the connection, and in a state in which the connection is released at the one of the first connecting portion and the second connecting portion, the first portion and the second portion are rotatable around the other of the first connecting portion and the second connecting portion. The holding jig of claim 1.

4. the first connecting portion is a ball lock pin that is inserted through a through hole provided in the first end portion and a through hole provided in the third end portion in a direction parallel to the central axis, The second connecting portion is a ball lock pin that is inserted through a through hole provided in the second end portion and a through hole provided in the fourth end portion in a direction parallel to the central axis. The holding jig of claim 3.

5. The engaging portion is separate from the support portion and is connected to the support portion by a removable fastener. The holding jig of claim 1.

6. The surface of the protruding portion facing the lower surface of the flange portion is an inclined surface. The holding jig of claim 1.

7. The engaging portion is provided in a plurality of positions, The plurality of engagement portions are provided at predetermined intervals on the inner circumferential surface of the support portion. The holding jig of claim 1.

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