JP5072374B2 - Portable auxiliary handle - Google Patents

Description

  The present invention relates to a portable auxiliary handle for operating a valve having a substantially circular handle.

  As shown in FIG. 19, for example, in a thermal power plant, a large number of pipes 100 </ b> A to 100 </ b> E for passing steam or the like are arranged vertically and horizontally. Each pipe is provided with valves 102A to 102E, which can be opened and closed by handles 104A to 104E, respectively. In addition, although there are six or more pipes 100A and the like and valves 102A and the like, illustration is omitted.

  As shown in FIG. 20, for example, the handle 104A includes an outer ring 104a, an inner ring 104b, and a handle stay 104c. The outer ring 104a and the inner ring 104b are connected by the handle stay 104c. The surface of the outer ring 104a has corrugated irregularities so that the operator can easily grip it.

  An operator can open and close the valve 102A by rotating the outer ring 104a in the direction of arrow X to raise and lower the valve stem 102a.

  Since dangerous materials such as high-temperature steam may pass through the valve 102A and the like of the power generation facility, there is a possibility that a serious accident may be caused by an erroneous operation. In addition, when the valve 102A or the like cannot be operated quickly, the emergency situation may not be appropriately handled.

  On the other hand, a handle structure for improving operability has been proposed (Patent Document 1).

  However, in an actual power generation facility, a handle with high operability is not necessarily provided for all of the valves 102A and the like. A handle other than a handle having a structure that improves operability is referred to as a “normal handle”.

Further, the operability can be improved by simply attaching a simple auxiliary handle to a normal handle. For example, the auxiliary handle 104d is disposed on the handle 104C of FIG. The operator can operate the handle 104C by holding the auxiliary handle 104d with one hand.
JP-A-8-42742

  However, in the power generation facility, there is a handle on which the auxiliary handle is not actually arranged, and there are cases where the auxiliary handle 104d cannot be arranged on all the handles 104A or the like due to restrictions such as a piping interval.

  The present invention has been made in view of the above-described problems, and an object thereof is to provide a portable auxiliary handle that can be easily attached to and detached from a normal handle.

  Specifically, the present invention provides the following.

(1) A portable auxiliary handle that can be attached to and detached from a substantially circular handle for opening and closing a valve, and presses the outer ring of the handle from opposite directions to fix the portable auxiliary handle and the outer ring. An outer ring positioning portion that sandwiches the handle stay of the handle, a lateral displacement prevention portion that prevents lateral displacement of a position where the portable auxiliary handle and the outer ring are fixed, a grip portion that can be operated with one hand, and a bottom surface portion A side wall portion, a ceiling portion, and a base portion integrally formed with a pair of claw portions; and a bolt-shaped member that is screwed into a female screw portion formed on the base portion. The portable auxiliary handle is configured by a bottom surface portion, the side wall portion, the ceiling portion, and the bolt-shaped member, and the lateral displacement prevention portion is configured by a pair of the claw portions .

According to the invention of (1), the portable auxiliary handle and the outer ring can be easily fixed by the outer ring positioning portion. The position where the portable auxiliary handle and the outer ring are fixed (hereinafter referred to as “fixed position”) is prevented from being laterally shifted (shifted in a direction perpendicular to the pressed direction) by the lateral shift prevention unit. can do.
And since the said grip part can be operated with one hand, the operator can rotate the said handle with one hand by operating the said grip part.

According to the invention of (1), the outer ring can be pressed and fixed from both directions by the bolt-shaped member and the base portion.

( 2 ) The portable auxiliary handle according to ( 1 ), wherein the claw portion is inclined with respect to the bottom surface portion.

According to the invention of ( 2 ), since the claw portion is inclined with respect to the bottom surface portion, it is possible to secure a wide contact area between the handle and the handle stay as compared with the case where there is no inclination. Thereby, the shift | offset | difference of a fixed position can be prevented more effectively.

( 3 ) The bolt-like member has a plate-like portion having a cross-sectional shape larger than the substantially circular cross-sectional shape of the bolt-like member, and the plate-like portion is in contact with the outer ring. The portable auxiliary handle according to any one of ( 1 ) and ( 2 ).

According to the invention of ( 3 ), since the plate-like portion is in contact with the outer ring, the outer ring can be pressed over a wide area. Thereby, the portable auxiliary handle can be effectively fixed to the handle.

( 4 ) The portion of the bolt-shaped member that contacts the outer ring is formed in a shape corresponding to the uneven surface shape of the handle, and the portion of the base portion that contacts the outer ring is also the surface shape of the handle The portable auxiliary handle according to any one of ( 1 ) to ( 3 ), wherein the portable auxiliary handle is formed in a shape corresponding to.

According to the invention of ( 4 ), since the bolt-shaped member and the base portion can ensure a wide area in contact with the outer ring, the portable auxiliary handle is more effectively fixed to the outer ring. be able to.

( 5 ) The portable auxiliary handle according to any one of ( 1 ) to ( 4 ), wherein a distance between the pair of claw portions is adjustable.

According to the invention of ( 5 ), even if the handle stays have various widths, the handle stays can be effectively sandwiched, so that lateral displacement can be prevented.

( 6 ) The grip portion has the bolt-shaped member and a cylindrical portion that can freely rotate with respect to the bolt-shaped member, and the cylindrical portion is fixed to the bolt when the portable auxiliary handle is fixed to the outer ring. The portable shaft according to any one of ( 1 ) to ( 5 ), characterized in that a rotation axis when freely rotating with respect to the shaped member is configured to be substantially parallel to the rotation axis of the handle. Auxiliary handle.

According to the invention of ( 6 ), the operator can easily rotate the handle by making a circular motion while holding the grip portion with one hand.

( 7 ) The portable auxiliary handle according to any one of ( 1 ) to ( 6 ), wherein the portable auxiliary handle is configured to be detachable from both the inside and the outside of the outer ring. This is an auxiliary handle.

According to the invention of ( 7 ), for example, even if the portable auxiliary handle cannot be attached to the outer ring from the outside due to insufficient work space, the portable auxiliary handle from the inner side. Can be attached.

  According to the present invention, the operator can perform the operation of pressing the handle by the outer ring positioning unit at a position where the lateral displacement prevention unit can sandwich the handle stay, and the outer ring unit and the portable unit. The auxiliary handle can be fixed and the lateral shift of the fixed position can be prevented.

  Thereby, a portable auxiliary handle that can be easily attached to and detached from a normal handle can be provided.

  Hereinafter, an example of an embodiment of the present invention will be specifically described with reference to the accompanying drawings.

[First Embodiment]
FIG. 1 is a schematic perspective view showing a portable auxiliary handle 10 (hereinafter referred to as “auxiliary handle 10”) of the first embodiment. In addition, in description after this embodiment, while it is the same member, the same code | symbol is attached | subjected and description of the already demonstrated member is abbreviate | omitted.

  The auxiliary handle 10 shown in FIG. 1 is a tool used to assist in turning the handle 104A and the like (see FIG. 19) such as the valve 102A. That is, the handle 104A and the like can be turned without using a later-described Wilky or the like. However, since it is necessary to turn the valve 102A and the like many times in order to operate the valve 102A and the like, the operability is insufficient as it is.

  As shown in FIG. 1, the auxiliary handle 10 includes a base portion 12 and a grip portion 14.

  The base portion 12 is formed, for example, by processing a metal plate, and a bottom surface portion 12a, a ceiling portion 12b, a side wall portion 12c, and a pair of claw portions 12d and 12d are integrally formed.

  Note that unlike the present embodiment, the base portion 12 may be a casting formed by casting.

  The grip part 14 is comprised from the cylindrical part 14a and the bolt part (bolt-shaped member) 14b. The bolt part 14b has an external thread part in the part below the substantially middle part of the longitudinal direction. The male screw portion of the bolt portion 14b is screwed with the female screw portion formed on the ceiling portion 12b.

  The bolt part 14b is inserted into the cylinder of the cylindrical part 14a so as to be freely rotatable. The bolt portion 14b has an enlarged diameter portion 14ba at the upper end portion thereof, and prevents the cylindrical portion 14a from coming out upward from the bolt portion 14b.

  In this specification, the direction of the arrow Y1 in FIG. 1 is the bottom, and the opposite direction is the top.

  Note that, unlike the present embodiment, the bolt portion 14b may have a male thread portion only at a substantially middle portion in the longitudinal direction.

  FIG. 2 is a schematic plan view of the grip portion 14 as viewed from the direction of the arrow Y1 in FIG. The enlarged diameter portion 14ba is not shown.

  As shown in FIG. 2, there is a gap S1 between the cylindrical portion 14a and the bolt portion 14b. Thereby, the cylindrical part 14a can rotate freely centering | focusing on the bolt part 14b.

  A linear groove 14bc is formed at the upper tip of the bolt portion 14b. Thereby, the bolt part 14b can be screwed together with the ceiling part 12b, for example using a flathead screwdriver.

  3 is a schematic side view of the auxiliary handle 10 as viewed from the direction of the arrow Y2 in FIG.

  As shown in FIG. 3, a male screw 14bd is formed on a part of the bolt portion 14b. When the male screw 14bd is screwed with a female screw formed on the ceiling portion 12b of the base portion 12, the bolt portion 14b moves up and down, and a distance h1 between the lower tip portion of the bolt portion 14b and the bottom surface portion 12a of the base portion 12 ( Hereinafter, the height is referred to as “height h1”.

  Further, the tip portion 12ba of the ceiling portion 12b and the tip portion 12da of the claw portion 12d are separated from each other by a distance d1. The distance d1 is larger than the width w1 (see FIG. 20) of the outer ring 104a such as the handle 104A. For this reason, the outer ring 104 a of the handle 104 </ b> A can be taken into the internal space S <b> 2 of the base portion 12. The internal space S2 is a space composed of a bottom surface portion 12a, a ceiling portion 12b, a side wall portion 12c, and a claw portion 12d.

  The distance d2 (see FIG. 1) between the pair of claw portions 12d and 12d is formed to be slightly larger than the width w2 (see FIG. 20) of the handle stay 104c of the handle 104A. Accordingly, the handle stay 104c can be sandwiched between the pair of claw portions 12d and 12d. The difference in size between the distance d2 and the width w2 is, for example, not less than 1 millimeter (mm) and not more than 2 millimeters (mm). For this reason, in a state where the handle stay 104c is sandwiched between the pair of claw portions 12d and 12d, the pair of claw portions 12d and 12d and the handle stay 104c are substantially in contact with each other.

  Further, when the auxiliary handle 10 is fixed to the outer ring 104a, the rotation axis when the cylindrical portion 14a freely rotates with respect to the bolt portion 14b is configured to be substantially parallel to the rotation axis of the auxiliary handle 10. .

  The above is the configuration of the auxiliary handle 10. Hereinafter, a method of using the auxiliary handle 10 will be described mainly with reference to FIG.

  FIG. 4 is a schematic view showing a state in which the auxiliary handle 10 is attached to the handle 104A.

  As shown in FIG. 4, first, the outer ring 104a of the handle 104A is taken into the internal space S2 and placed on the bottom surface portion 12a.

  In this state, the tip portion 14be of the grip portion 14 is lowered in the direction approaching the bottom surface portion 12a. Thereby, the outer ring | wheel 104a can be pressed and fixed by the bottom face part 12a and the front-end | tip part 14be from mutually opposite directions. The position where the tip end 14be contacts the outer ring 104a is referred to as a fixed position. The bottom surface portion 12a, the side wall portion 12c, the ceiling portion 12b, and the bolt portion 14b function as an outer ring positioning portion for fixing the auxiliary handle 10 and the outer ring 104a.

  The fixing position is in the vicinity of the connecting portion between the outer ring 104a and the handle stay 104c.

  At this time, the handle stay 104c is sandwiched between the pair of claw portions 12d and 12d. Specifically, the inner surface portions 12db and 12db of the pair of claw portions 12d and 12d sandwich the handle stay 104c by the side wall portions 104ca and 104ca of the handle stay 104c.

  As a result, it is possible to prevent lateral displacement of the fixed position (displacement in a direction perpendicular to the direction in which the bolt portion 14b presses the outer ring 104a). The direction of the lateral shift is, for example, the arrow X direction.

  In this way, it is possible to prevent the fixed position from being laterally displaced by sandwiching the handle stay 104c between the pair of claw portions 12d and 12d. That is, the pair of claw portions 12d and 12d function as a lateral slip prevention portion.

  In the state shown in FIG. 4, the handle 104 </ b> A can be rotated in the arrow X direction by rotating the grip portion 14 in the arrow X direction.

  At this time, since the cylindrical portion 14a is not fixed to the bolt portion 14b, the cylindrical portion 14a can freely rotate in the arrow Y3 direction.

  For this reason, the operator can hold the cylindrical portion 14a with one hand, for example, and can rotate the grip portion 14 in the arrow X direction without changing the hand.

  As described above, since the rotation axis when the cylindrical portion 14a freely rotates with respect to the bolt portion 14b is configured to be substantially parallel to the rotation axis of the auxiliary handle 10, the operator can perform natural operations. Thus, the grip portion 14 can be rotated in the arrow X direction, and the handle 104A can be rotated in the arrow X direction.

[Second Embodiment]
With reference to FIG.5 and FIG.6, 2nd Embodiment of this invention is described.

  FIG. 5 is a schematic side view of the auxiliary handle 10A of the second embodiment.

  As shown in FIG. 5, the claw portion 12d is inclined with respect to the bottom surface portion 12a by an angle θ. The angle θ is 45 degrees, for example.

  Since the claw portion 12d is inclined with respect to the bottom surface portion 12a, a wide contact area between the claw portion 12d and the handle stay 104c can be ensured, so that the lateral displacement of the fixed position can be more reliably prevented. .

  FIG. 6 is a schematic view showing the grip portion 14A.

  As shown in FIGS. 6A and 6B, an enlarged diameter portion 14bf is formed integrally with the shaft portion 14bg at the upper end portion of the bolt portion 14b. The enlarged diameter portion 14bf has a width w3 that is about the thickness of a human finger so that the operator can easily turn it in the direction of the arrow Y3. The width w3 is, for example, 1 centimeter (cm).

  For this reason, by rotating the enlarged diameter portion 14bf in the arrow Y3 direction, the bolt portion 14b can be moved up and down with respect to the ceiling portion 12b (see FIG. 5), and the height h1 can be adjusted. Thereby, the auxiliary handle 10A can be fixed to the outer ring 104a without using a tool such as a flat-blade screwdriver.

[Third Embodiment]
A third embodiment of the present invention will be described with reference to FIGS.

  FIG. 7 is a schematic perspective view of the auxiliary handle 10B of the third embodiment. FIG. 8 is a schematic side view of the auxiliary handle 10B of FIG. 7 as viewed from the direction of the arrow Y2.

  As shown in FIGS. 7 and 8, a disk 14bh is disposed at the lower end of the bolt part 14b. The outer shape of the disk 14bh is larger than the substantially circular outer shape of the bolt portion 14b.

  The disc 14bh is in contact with the outer ring 104a.

  For this reason, it is possible to ensure a wide contact area when pressing the outer ring 104a from above. Thereby, the auxiliary handle 10B can be more reliably fixed to the handle 104A or the like.

  Unlike the embodiment, a rectangular plate may be disposed at the lower end portion of the bolt portion 14b, or the lower end portion of the bolt portion 14b may be configured to have a larger diameter.

[Fourth Embodiment]
A fourth embodiment of the present invention will be described with reference to FIGS.

  FIG. 9 is a schematic perspective view of an auxiliary handle 10C of the fourth embodiment. FIG. 10 is a schematic side view of the auxiliary handle 10C of FIG. 9 as seen from the direction of the arrow Y5.

  As shown in FIGS. 9 and 10, a disk 14bi is disposed at the lower end of the bolt part 14b. The outer shape of the disc 14bi is larger than the substantially circular outer shape of the bolt portion 14b. Furthermore, the lower surface portion of the disk 14bi has a wavy uneven shape. This uneven shape matches the surface shape of the outer ring 104a of the handle 104A.

  In addition, a wavy uneven portion 12aa is formed on the upper surface of the bottom surface portion 12a of the base portion 12. The uneven portion 12aa also matches the surface shape of the outer ring 104a.

  For this reason, a wider contact area can be secured when the outer ring 104a is pressed from above. Thereby, the auxiliary handle 10B can be more reliably fixed to the handle 104A.

[Fifth Embodiment]
A fifth embodiment of the present invention will be described with reference to FIGS.

  FIG. 11 is a schematic perspective view of an auxiliary handle 10D of the fifth embodiment.

  As shown in FIG. 11, the claw portion 12e of the auxiliary handle 10D includes a rotation shaft portion 12ea and a cylindrical portion 12eb. A female screw is formed inside the cylindrical portion 12eb, and is screwed with a male screw formed on the rotary shaft portion 12ea. The cylindrical portion 12eb is formed of, for example, raw rubber, which is elastically deformable and has a large friction coefficient.

  Moreover, raw rubber 14bj is arrange | positioned at the edge part below the bolt part 14b, for example. For this reason, the outer ring 104a can be pressed and fixed in an elastically deformed state according to the shape of the outer ring 104a.

  12 and 13 are schematic plan views of the claw portion of the auxiliary handle 10D shown in FIG. 11 viewed from the direction of the arrow Y1.

  As shown in FIGS. 12 and 13, the planar shape of the cylindrical portion 12eb is an ellipse.

  As shown in FIG. 12, when the pair of claw portions 12e and 12e are opposed to each other at the maximum diameter portion, the distance d2 becomes the minimum value.

  On the other hand, when the pair of claw portions 12e and 12e are opposed to each other at the portion having the smallest diameter, the distance d2 becomes the maximum value.

  By rotating the cylindrical portion 12eb, the distance d2 can be set to any value between the aforementioned minimum value and maximum value. That is, the distance between the pair of claw portions 12e and 12e is configured to be adjustable.

  For this reason, even if the width of the handle stay 104c is different for each handle 104A or the like, the handle d can be reliably pinched by the pair of claw portions 12e and 12e by adjusting the distance d2.

  FIG. 14 is a plan view of the side wall 12c of FIG. 11 viewed from the direction of the arrow Y3.

  As shown in FIG. 14, the side wall part 12c is formed of a base part 12ca and a pair of leg parts 12cb.

  As can be understood with reference to FIG. 11 and FIG. 14, the bottom portion 12a is a portion that is bent and extended from each leg portion 12cb at a substantially right angle. For this reason, the bottom surface portion 12a has a shape in which a pair of rectangular plates are parallel.

  FIG. 15 is a diagram illustrating a method of using the auxiliary handle 10D.

  As shown in FIG. 15, the auxiliary handle 10D can be attached to the handle 104A or the like from the inside.

  When the auxiliary handle 10D is attached from the inside, the handle stay 104c is sandwiched between the inner surfaces 12cba of the pair of leg portions 12cb.

[Sixth Embodiment]
A sixth embodiment of the present invention will be described with reference to FIGS.

  FIG. 16 is a schematic perspective view of an auxiliary handle 10E of the sixth embodiment. FIG. 17 is a schematic plan view of the auxiliary handle 10E of FIG. 16 viewed from the direction of the arrow Y2.

  As shown in FIGS. 16 and 17, the bolt part 14b is screwed into the side wall part 12c.

  A downward claw portion 12f is formed continuously with the ceiling portion 12b.

  FIG. 18 is a schematic view showing a state in which the auxiliary handle 10E is attached to the handle 104A.

  As shown in FIG. 18, the outer ring 104a is pressed and fixed in both directions by the downward claw portion 12f and the bolt portion 14b. The claw portion 12f presses one side surface portion 104ab of the outer ring 104a, and the bolt portion 14b presses the other side surface portion 104ab of the outer ring 104a.

  Further, the handle stay 104c is sandwiched between the pair of claw portions 12f and 12f.

  According to the present invention, it is possible to provide a portable auxiliary handle that can be easily attached to and detached from a normal handle. The present invention is characterized in that the operability of a handle that can be turned manually without using a tool is improved.

  For this reason, for example, it does not provide a solution when it is necessary to turn the handle 104A or the like as shown in FIG. 23 using the Will key 150 shown in FIG.

It is a schematic perspective view which shows the portable auxiliary handle of 1st Embodiment. It is a schematic plan view of a grip part. It is a schematic side view of an auxiliary handle. It is the schematic which shows the state which attached the auxiliary handle to the handle. It is a schematic side view of an auxiliary handle. It is the schematic which shows a grip part. It is a schematic perspective view of an auxiliary handle. It is a schematic side view of an auxiliary handle. It is a schematic perspective view of an auxiliary handle. It is a schematic side view of an auxiliary handle. It is a schematic perspective view of an auxiliary handle. It is a schematic plan view of a nail | claw part. It is a schematic plan view of a nail | claw part. It is a schematic plan view of a side wall part. It is the schematic which shows the state which attached the auxiliary handle to the handle. It is a schematic perspective view of an auxiliary handle. It is a schematic side view of an auxiliary handle. It is the schematic which shows the state which attached the auxiliary handle to the handle. It is the schematic which shows an example of piping. It is the schematic which shows an example of a valve | bulb. It is the schematic which shows an example of a valve | bulb. It is the schematic which shows a Wilky. It is the schematic which shows the usage example of Wilkie.

Explanation of symbols

  10, 10A, 10B, 10C, 10D, 10E ... portable auxiliary handle, 12 ... base member, 12a ... bottom part, 12b ... ceiling part, 12c ... side wall part, 12d ... -Claw part, 14 ... Grip part, 14a ... Cylindrical part, 14b ... Bolt part

Claims (7)

A portable auxiliary handle that can be attached to and detached from a substantially circular handle for opening and closing a valve,
An outer ring positioning unit that fixes the portable auxiliary handle and the outer ring by pressing the outer ring of the handle from both directions opposite to each other;
A lateral slip prevention unit that prevents lateral displacement of a position where the portable auxiliary handle and the outer ring are fixed with the handle stay of the handle interposed therebetween;
A grip that can be operated with one hand,
A base portion in which a bottom surface portion, a side wall portion, a ceiling portion, and a pair of claw portions are integrally formed;
A bolt-shaped member that is screwed into the female screw portion formed in the base portion;
Have
The outer ring positioning portion is composed of the bottom surface portion, the side wall portion, the ceiling portion, and the bolt-shaped member,
The portable auxiliary handle is characterized in that the lateral slip prevention part is composed of a pair of the claw parts . The pawl is
Portable auxiliary handle according to claim 1, characterized that you have inclined to the bottom surface portion. The bolt-shaped member has a plate-like portion having a cross-sectional shape larger than the substantially circular cross-sectional shape of the bolt-shaped member,
The portable auxiliary handle according to claim 1 or 2, wherein the plate-like portion is in contact with the outer ring . The portion of the bolt-shaped member that contacts the outer ring is formed in a shape corresponding to the uneven surface shape of the handle, and the portion of the base portion that contacts the outer ring also corresponds to the surface shape of the handle. portable auxiliary handle according to any one of claims 1 to 3, characterized in that it is formed into a shape. Distance of the pair of the claw portions, portable auxiliary handle according to any one of claims 1 to 4, characterized in that it is adjustable configuration. The grip portion has the bolt-shaped member and a cylindrical portion that can freely rotate with respect to the bolt-shaped member,
When the portable auxiliary handle is fixed to the outer ring,
Rotation axis when the cylindrical portion is free to rotate relative to the bolt-like member, one of claims 1 to 5, characterized in that it is configured so as to be substantially parallel to the rotational axis of the handle A portable auxiliary handle according to claim 1. The portable auxiliary handle, portable auxiliary according to any one of claims 1 to 6, characterized in that it is configured to so that can be attached to and detached from the bidirectional inside and outside of the outer ring handle.

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