Holding fixture

Abstract

Makes it easier to hold the hydrant valve. [Solution] A holding jig 100 for holding a hydrant valve, comprising an annular support portion 10 that conforms to the outer peripheral surface of the hydrant valve, an engagement portion 20 that includes a protrusion 22 that protrudes from the inner peripheral surface F of the support portion 10 and engages with a flange portion provided on the outer peripheral surface, and a first gripping portion 30a and a second gripping portion 30b that are provided on the support portion 10 and can be grasped by an operator.

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 a fuel storage tank to the apron (parking area) through underground transport pipes.

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

[0004] Here, the hydrant valve serves to connect the transport pipe and the refueling vehicle, and 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, in order to ensure the performance of the hydrant valve, it is inspected periodically.

[0005] Therefore, Patent Document 1 discloses an inspection jig for inspecting the performance of hydrant valves. In the technology of Patent Document 1, an inspection jig is attached to a hydrant valve removed from a transport pipe and inspection is performed. Then, when the inspection is completed, the hydrant valve is reattached to the transport pipe. Currently, workers manually attach and detach the hydrant valve.

[0006] In addition to weighing approximately 30 to 50 kg, hydrant valves are located in underground hydrant pits, so installing and removing 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 shape of the hydrant valve itself makes it difficult for workers to hold it. Therefore, the physical burden on workers when attaching and detaching the hydrant valve is greater. In consideration of the above circumstances, 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 conforming to the outer peripheral surface of the hydrant valve; a protrusion protruding from the inner peripheral surface of the support portion; an engagement portion that engages with a flange portion provided on the outer peripheral surface; and first and second gripping portions provided on the support portion for gripping by an operator.

[0010] [2] The first gripping portion and the second gripping portion are a holding jig as defined in [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 a 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 from 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.

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

[0013] [5] A holding jig as set forth in any one of [1] to [4], wherein the engagement portion is separate from the support portion and is connected to the support portion by a removable fastener.

[0014] [6] A holding jig as set forth in any one of [1] to [5], wherein the surface of the protrusion facing the underside of the flange portion is an inclined surface.

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

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

[0017] [Figure 1] FIG. 2 is a perspective view of a holding jig according to the embodiment. [Diagram 2] FIG. 2 is a plan view of the holding jig according to the embodiment. [Diagram 3] FIG. 2 is a side view of the holding jig according to the embodiment. [Figure 4] 1A to 1C are explanatory diagrams illustrating an example of a procedure for attaching the holding jig according to the present embodiment to a hydrant valve. [Diagram 5] 1 is a perspective view of the holding jig according to the embodiment in a state in which the first portion and the second portion 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 embodiment. [Figure 7] FIG. 2 is a perspective view of a holding jig according to the embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[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 a procedure for attaching the holding jig 100 to the hydrant valve 90. In the following description, an axis parallel to the vertical axis is referred to as the Y-axis, and an axis parallel to the horizontal axis is 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 detachably 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 FIGS. 1 and 2, a holding jig 100 according to 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 .

[0021] The support part 10 is an annular part along the outer peripheral surface of the hydrant valve 90. The central axis P (central axis of the inner diameter) of the support part 10 when viewed in the plan view of FIG. 2 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 along the outer peripheral surface of the hydrant valve 90. Therefore, as illustrated in FIG. 2, the inner peripheral surface F of the support part 10 is approximately circular in 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 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 portion 11, and the portion corresponding to the other section is the second portion 12. The first portion 11 includes a first end E1 and a second end E2, and the second portion 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 Fig. 2, the outer peripheral surface of the hydrant valve 90 has a flange portion 91, and the engaging portion 20 engages with the 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 on the inner peripheral surface F of the support portion 10 at predetermined intervals. It is preferable that the first portion 11 and the second portion 12 are each provided with one or more engaging portions 20. Typically, the first portion 11 and the second portion 12 are each provided with 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 the fastener G has the advantage that, for example, the engagement portion 20 can be easily replaced when it becomes worn.

[0027] FIG. 6 is a plan view and a side view focusing only on the engagement portion 20. FIG. 6 also illustrates a W axis perpendicular to the Y axis for convenience. The W axis may be parallel to the X axis. As illustrated in FIG. 6, the engagement 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 an 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 intersecting (typically perpendicular to) the Y axis (in the example of FIG. 6, 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. At the end of the first member 223 on the positive side of the Y axis, a portion protruding in the positive direction of the W axis is the attachment portion 21. At the end of the first member 223 on the negative side of the Y axis, a portion protruding in the negative direction of the W axis is the second member 225.

[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 inclines from the surface of the first member 223 toward the negative direction of the Y axis. By including the inclined surface of 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 enables the first end E1 of the first portion 11 to be connected and disconnected from the third end E3 of the second portion 12. Similarly, the second connecting portion 42 enables the second end E2 of the first portion 11 to be connected 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. In addition, 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, from the viewpoint of facilitating connection and release of the connection between the first portion 11 and the second portion 12, the first connecting portion 41 and the second connecting portion 42 are each a ball lock pin. The ball lock pin is a fastener in which, when the button on the head is pressed, the ball is drawn into the inside of the pin, releasing the lock, and when the button is released, the ball comes out from inside the pin, entering a locked state. The first connecting portion 41 and the second connecting portion 42 are inserted from a direction parallel to the Y axis (central axis P).

[0035] Fig. 7 is a perspective view of the holding jig 100 in a state in which the first connecting portion 41 is released from the connection between the first end E1 and the third end E3. As illustrated in Fig. 7, in a state in which 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 about the other (the first connecting portion 41 in Fig. 7). That is, 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 gripped 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] The first gripping portion 30a and the second gripping portion 30b of this embodiment illustrated in Fig. 1 and Fig. 3 protrude in a direction parallel to the Y axis (the central axis P of the support portion 10) (positive direction of the Y axis). The first gripping portion 30a and the second gripping portion 30b protrude in a direction parallel to the Y axis, which 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 the first gripping portion 30a and the second gripping portion 30b are not particularly limited, but are preferably a shape that can be gripped with fingers (U-shaped in FIG. 3). The first connecting portion 41 and the second connecting portion 42 can be attached and detached (connection and disconnection of the first portion 11 and the second portion 12) from the surface of the support portion 10 on the side where the first gripping portion 30a and the second gripping portion 30b are provided.

[0039] An example of a procedure for removing the hydrant valve 90 using the holding jig 100 will be described with reference to Fig. 4. First, with one of the first connecting portion 41 and the second connecting portion 42 (the second connecting portion 42 in Fig. 4) removed, the support portion 10 is positioned so that the engagement portion 20 engages with the flange portion 91 of the hydrant valve 90. Then, the first portion 11 (first end portion E1) and the second portion 12 (third end portion 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 up 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. With one of the first connecting portion 41 and the second connecting portion 42 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, the hydrant valve 90 can be held more easily than in a configuration in which the hydrant valve 90 is directly held 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 easy for a worker to hold. Therefore, the detachable holding jig 100 of the present invention is effective.

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

[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. However, 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. The 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 engagement portion 20 includes an inclined surface (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 protrusion 22 in the engagement 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 (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 reduce 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 is possible to 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 is possible to 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 description, 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 circumferential surface of the hydrant valve; a flange portion provided on the outer circumferential surface of the support portion, the flange portion including a protruding portion protruding from the inner circumferential surface of the support portion; An engaging portion that engages with the 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 are arranged in a direction parallel to the central axis of the support portion. To stand out 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 releasable. When the connection is released on the one side, the first connection portion and the second connection portion The first portion and the second portion are rotatable about the other of the connecting portions. The holding jig of claim 1.

4. The first connecting portion has a through hole provided at the first end portion and a through hole provided at the third end portion. a ball lock pin that is inserted into the hole from a direction parallel to a central axis of the support portion, The second connection portion has a through hole provided at the second end portion and a through hole provided at the fourth end portion. A ball lock pin is inserted into the hole from a direction parallel to the central axis. The holding jig according to claim 3.

5. The engaging portion is separate from the supporting portion and is fastened to the supporting portion by a removable fastener. Connected to 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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