JP2009222205A - Valve opening-closing device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an easily usable valve opening-closing device, openable-closable for any of a handle type valve and a stem type valve. <P>SOLUTION: A grip 12 is arranged on a rear end 11a of a shaft member 11 so that the shaft member 11 can rotate around its axis. A fitting member 13 has a fitting part 27 fixed to the tip 11b of the shaft member 11, fitted to a stem 4 of a valve 3 and capable of rotating the stem 4 together with rotation of the shaft member 11. An engaging member 14 has a through-hole 28, and is movably inserted in its length direction into the shaft member 11 by the through-hole 28, and is prevented from slipping out by the fitting member 13. The engaging member 14 has a pair of engaging parts 29 capable of rotating a handle 2 together with rotation of the shaft member 11 by engaging with a bar-shaped part 2a of the handle 2 of a valve 1 in a state of preventing rotation by engaging with the fitting member 13 by the through-hole 28. <P>COPYRIGHT: (C)2010,JPO&amp;INPIT

Description

  The present invention relates to a valve switch.

  Conventionally, as a device that opens and closes valves installed in valve chambers such as water pipes, manholes, hand holes, etc. that are not accessible to the ground such as underground, the valves are opened and closed by rotating handles such as PVC valves (See, for example, Patent Document 1), or a projecting stem (a rotating shaft of a valve body and its tip) such as a metal valve, and a stem is rotated to open and close (for example, Patent Document) 2 or 3). However, when a handle type valve and a stem type valve are mixed, it is necessary to prepare a valve for each valve, and since it is long, it is inconvenient to carry.

  To solve this problem, it is possible to open and close both the handle type valve and the stem type valve. At the lower end of the box type key for opening and closing the stem type valve, the valve for opening and closing the handle type valve An apparatus in which a mold key is integrally provided has been proposed (see, for example, Patent Document 4).

Japanese Utility Model Publication No. 6-54977 Japanese Utility Model Publication No. 6-54976 Japanese Utility Model Publication No. 55-147271 JP-A-11-82803

  However, the valve switch described in Patent Document 4 has a problem that when opening and closing a stem-type valve, the valve-type key is obstructive, so that it is difficult to use, and some valves cannot be opened or closed depending on the shape of the stem. It was.

  The present invention has been made paying attention to such a problem, and an object thereof is to provide a valve switch that is easy to use and can be opened and closed by either a handle type valve or a stem type valve.

  In order to achieve the above object, a valve switch according to the present invention is a valve switch for a valve that opens and closes by rotating a stem and a valve that opens and closes by rotating a handle, and includes a shaft member and a fitting member And the engaging member, the shaft member has a handle at the rear end, and the fitting member is provided at the tip of the shaft member, and engages with the stem and rotates with the shaft member. A fitting portion capable of rotating the stem; and the engagement member has a through-hole, and is inserted through the through-hole so as to be movable in the length direction of the shaft member. And having an engaging portion that engages with the handle in a state in which the fitting member is engaged with the fitting member through the through hole and is rotated, and the handle can be rotated together with the rotation of the shaft member. .

  The valve switch according to the present invention is used as follows in order to open and close a valve installed at a position where it cannot be reached such as underground. When opening and closing the valve that opens and closes by rotating the handle, the engaging member is engaged with the handle in a state where the engaging member is engaged with the fitting member through the through hole and stopped. The handle type valve can be opened and closed by holding the handle and rotating the shaft member.

  When opening and closing the valve that opens and closes by rotating the stem, the engaging member is moved to the handle side of the shaft member. The stem type valve can be opened and closed by fitting the fitting portion of the fitting member to the stem, holding the handle and rotating the shaft member.

  As described above, the valve switch according to the present invention can be opened and closed by either a handle type valve or a stem type valve. Also, when opening and closing the handle type valve, the unused fitting member does not get in the way, and when opening and closing the stem type valve, the unused engagement member can be moved to the handle side of the shaft member. Easy to use because the joints do not get in the way.

The handle of the handle-type valve that opens and closes may have any shape as long as it has a rod-like portion extending vertically from the rotation axis. For example, a handle having a plurality of rod-like portions extending radially from the rotation shaft, A cock-type handle in which one lever extends from may be used. The stem of the stem-type valve that opens and closes may be, for example, a rod shape with a polygonal cross section or a rod shape with a cross section cut out of a circle with a string. A fitting part is formed in the shape which can rotate a stem according to the shape of the stem.
The valve switch according to the present invention may be used to open and close valves in valve chambers such as underground water pipes, manholes, and handholes, and in places that are difficult to reach such as clean rooms and ceilings. .

The valve switch according to the present invention further includes a stopper, and the stopper can be selectively positioned at a storage position that allows the passage of the through hole and a protruding position that prevents the passage of the fitting member. It is preferable that it is rotatably provided in the vicinity of the rear end.
In this case, when opening and closing the handle-type valve, the stopper is rotated and positioned at the protruding position in a state where the engaging member is engaged with the fitting member through the through hole and is not rotated. Thereby, it can prevent that an engaging member moves to a shaft member, and can make opening and closing of a valve easy. When opening and closing the stem type valve, the stopper is positioned at the storage position, the engaging member is moved to the handle side of the shaft member, and then the stopper is positioned at the protruding position. Thereby, it can prevent that an engaging member moves to a fitting member, and can prevent an engaging member from getting in the way when rotating a stem.

  Further, in the valve switch according to the present invention, the fitting member has a flange portion that prevents the through hole from passing around the tip portion, and the stopper is between the flange portion when the protrusion is in the protruding position. You may have the press part which pinches | interposes the said engagement member. In this case, when the handle type valve is opened and closed, the stopper is positioned at the protruding position in a state where the engaging member is engaged with the fitting member through the through hole and is not rotated. The engagement member can be fixed by sandwiching the engagement member between the flange portion and the pressing portion, and the opening and closing of the handle type valve can be further facilitated.

  In the valve switch according to the present invention, the fitting member is formed so that an outer shape gradually increases from a rear end to a front end, and the through hole matches an outer shape at an intermediate position between the rear end and the front end of the fitting member. The engaging member has a protrusion protruding from the edge of the through hole to the rear end side along the outer periphery of the fitting member when the through hole is fitted to the fitting member. You may do it. In this case, when opening and closing the handle type valve, the engaging member can be engaged at the intermediate position of the fitting member by the through hole, and the rotation can be effectively stopped. At this time, since the engaging member can be stabilized by keeping the protrusion along the outer periphery of the fitting member, the opening and closing of the handle type valve can be further facilitated.

  In the valve switch according to the present invention, it is preferable that the shaft member has a hook capable of hooking the engagement member in a state where the tip is directed downward. In this case, when the stem-type valve is opened and closed, the engaging member is latched to the hook to prevent the engaging member from moving to the fitting member, and the engaging member is obstructed when the stem is rotated. Can be prevented.

  According to the present invention, it is possible to provide a valve switch that is easy to use and can be opened and closed by either a handle type valve or a stem type valve.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
1 to 6 show a valve switch according to an embodiment of the present invention.
As shown in FIG. 1, the valve switch 10 includes a shaft member 11, a handle 12, a fitting member 13, and an engaging member 14. The valve switch 10 is an instrument for opening and closing the handle type valve 1 and the stem type valve 3. The handle-type valve 1 is configured to open and close by rotating a handle 2, and the handle 2 has a rod-like portion 2 a that extends in a vertical direction from a rotation axis. The stem type valve 3 is configured to open and close by rotating a stem 4 protruding in a rod shape.

The shaft member 11 is made of an elongated round bar made of iron. The shaft member 11 has a hook 21 bent toward the rear end 11a at a position slightly closer to the front end 11b than the center portion.
The handle 12 is made of an iron-made elongated round bar, and is provided at the rear end 11 a of the shaft member 11 perpendicular to the length direction of the shaft member 11. Holding the handle 12, the shaft member 11 can be rotated around its central axis.

  As shown in FIG. 2, the fitting member 13 has an attachment surface 22, a fitting surface 23, a pair of flat side surfaces 24, and a pair of curved side surfaces 25 on the outer surface. The mounting surface 22 and the fitting surface 23 are planar and face opposite to each other. The fitting member 13 is firmly fixed to the end portion of the tip end 11b of the shaft member 11 by a method such as welding or adhesion on the mounting surface 22. Each flat side surface 24 faces opposite to each other, connects the attachment surface 22 and the fitting surface 23, and is perpendicular to the attachment surface 22 and the fitting surface 23. Each curved side surface 25 faces opposite to each other and has a convex shape toward the outside, and connects the mounting surface 22, the fitting surface 23, and each flat side surface 24. Each curved side surface 25 is formed in a tapered shape so that the distance from each other gradually increases from the mounting surface 22 side toward the fitting surface 23 side. Thereby, the external shape of the fitting member 13 is gradually increased from the rear end to the front end.

  The fitting member 13 has a circular flange portion 26 along the periphery of the fitting surface 23. The flange portion 26 has an outer shape larger than that of the through hole 28, and prevents the engagement member 14 from coming off. The fitting member 13 has a fitting portion 27 having a square cross section at the center of the fitting surface 23. The fitting part 27 has a shape slightly larger than the size of the stem 4 and can be fitted to the square columnar stem 4 having a square cross section. As shown in FIG. 1, the fitting member 13 is fixed to the distal end 11 b of the shaft member 11 with an attachment surface 22. The fitting member 13 fits the fitting portion 27 to the stem 4 so that the stem 4 can be rotated together with the rotation of the shaft member 11.

  As shown in FIG. 3, the engagement member 14 has an elongated and thin plate shape. The engaging member 14 has a through hole 28 provided in the central portion thereof so as to be inserted in the thickness direction so that the engaging member 14 can be inserted from the mounting surface 22 toward the fitting surface 23. The through hole 28 has a shape corresponding to each flat side surface 24 and each curved side surface 25 of the engaging member 14. The through hole 28 is sized to fit in the middle of each curved side surface 25 when the fitting member 13 is inserted. The engaging member 14 has a pair of engaging portions 29 protruding at the distal end side at both ends. Each engaging portion 29 is formed by two rectangular claw portions facing each other in parallel with a gap slightly larger than the width of the rod-shaped portion 2a of the handle type valve 1.

  As shown in FIG. 1, the engagement member 14 is inserted through the through hole 28 so as to be movable in the length direction of the shaft member 11. As for the engaging member 14, each engaging part 29 protrudes in the front-end | tip 11b side of the shaft member 11. As shown in FIG. As shown in FIGS. 1 and 3, the engaging member 14 has a pair of protrusions 30 that protrude obliquely toward the rear end 11 a side of the shaft member 11 at the opposing edge of the through hole 28. The protrusion 30 extends along the outer periphery of the fitting member 13 when the through hole 28 is fitted to the fitting member 13. The engagement member 14 engages with the rod-shaped portion 2a with the engagement portion 29 sandwiching the rod-shaped portion 2a of the handle type valve 1 with the through hole 28 fitted to the fitting member 13 and stopped. The handle 2 can be rotated along with the rotation of the shaft member 11. The hook 21 can latch the engaging member 14 with the tip 11b of the shaft member 11 facing downward.

Next, the operation will be described.
The valve switch 10 is used as follows in order to open and close a valve that is installed at a position where the hand is not accessible such as underground. When the handle type valve 1 is opened and closed, the engaging member 14 is engaged with the fitting member 13 through the through-hole 28 to stop the rotation. The engaging member 14 is engaged at the intermediate position of each curved side surface 25 on the outer periphery of the fitting member 13 formed in a tapered shape by the through hole 28. At this time, the engaging member 14 can be stabilized by bringing the protrusion 30 along each curved side surface 25 of the fitting member 13. In this state, the engaging member 14 is lowered to the position of the underground valve 1 with the tip 11b side of the shaft member 11 facing downward. As shown in FIG. 4, the bar-shaped part 2a of the handle 2 is sandwiched between the engaging parts 29 of the engaging member 14, and the engaging parts 29 are engaged with the bar-shaped part 2a. The handle type valve 1 can be opened and closed by gripping the handle 12 and rotating the shaft member 11. Since the engaging member 14 is fixed by the tapered curved side surfaces 25 and the protrusions 30, the handle type valve 1 can be easily opened and closed.

  Further, as shown in FIG. 5, when opening and closing the stem type valve 3, the through hole 28 is removed from the fitting member 13, the engaging member 14 is moved to the handle 12 side of the shaft member 11, and hooked on the hook 21. Stop. The fitting member 13 is lowered to the position of the underground valve 3 with the tip 11b side of the shaft member 11 facing downward. The fitting part 27 of the fitting member 13 is fitted to the stem 4, the handle 12 is gripped, and the shaft member 11 is rotated around its central axis. Thereby, the stem 4 can be rotated and the valve 3 can be opened and closed. The stem-type valve 3 has a gland portion that presses the gland packing in the upper part for sealing around the stem, and may protrude sideways. However, by engaging the engaging member 14 with the hook 21, the engaging member 14 Can be prevented from moving to the fitting member 13, and the engaging member 14 can be prevented from interfering when the stem 4 is rotated.

  As described above, the valve switch 10 can be opened and closed by either the handle type valve 1 or the stem type valve 3. In addition, when the handle type valve 1 is opened and closed, the unused fitting member 13 does not get in the way, and when the stem type valve 3 is opened and closed, the unused engagement member 14 is moved to the handle 12 side of the shaft member 11. If this is done, the engaging member 14 does not get in the way, so it is easy to use.

  In addition, as shown to Fig.6 (a), the valve switch 10 may have the stopper 51. FIG. The stopper 51 is formed in an elongated plate shape, and can be selectively positioned at a storage position A that allows passage of the through hole 28 and a protruding position B that prevents passage of the through hole 28. It is provided in the connection part so that rotation is possible. The stopper 51 can rotate around the shaft member 11. When the stopper 51 is in the storage position A, the stopper 51 does not fit in the range of the mounting surface 22 of the fitting member 13 and does not protrude, and at the protrusion position B rotated 90 degrees from the protrusion position A, both ends protrude from the flat side surfaces 24. To do.

  In the case where the stopper 51 is provided, when the handle type valve 1 is opened and closed, the stopper 51 is rotated to the protruding position B while the engaging member 14 is engaged with the fitting member 13 through the through hole 28 and stopped. Position. Thereby, it can prevent that the engaging member 14 moves to the shaft member 11, and can open and close the valve 1 easily. When opening and closing the stem-type valve 3, the stopper 51 is positioned at the storage position A, the engaging member 14 is moved to the handle 12 side of the shaft member 11, and then the stopper 51 is positioned at the protruding position B. Thereby, it can prevent that the engaging member 14 moves to the fitting member 13, and can prevent the engaging member 14 from getting in the way when the stem 4 is rotated.

  Further, as shown in FIG. 6B, the stopper 51 may have a pressing portion 52 that sandwiches the engaging member 14 between the stopper 51 and the flange portion 26 at the protruding position B. When the stopper 51 is in the storage position A, the presser portion 52 can pass through the through hole 28. When the handle portion 52 is provided, when the handle type valve 1 is opened and closed, the stopper 51 is positioned at the protruding position B in a state where the engaging member 14 is engaged with the fitting member 13 through the through-hole 28 and stopped. The engaging member 14 can be fixed by sandwiching the engaging member 14 between the flange portion 26 and the pressing portion 52, and the opening and closing of the handle type valve 1 can be further facilitated.

It is a front view which shows the valve switch of embodiment of this invention. It is (a) top view which shows the fitting member of the valve switch shown in FIG. 1, (b) Front view, (c) Side view. It is (a) top view which shows the engagement member of the valve switch shown in FIG. 1, (b) Front view, (c) Side view. It is the (a) front view and (b) top view which show the use condition which opens and closes the handle type valve of the valve switch shown in FIG. It is a perspective view which shows the use condition which opens and closes the stem type valve | bulb of the valve switch shown in FIG. (A) The perspective view which shows the modification which has a stopper of the valve switch shown in FIG. 1, (b) It is a perspective view which shows the modification which has a pressing part further.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Valve 2 Handle 2a Bar-shaped part 3 Valve 4 Stem 10 Valve switch 11 Shaft member 12 Handle 13 Fitting member 14 Engaging member 21 Hook 22 Mounting surface 23 Fitting surface 24 Flat side surface 25 Curved side surface 26 Flange portion 27 Fitting portion 28 Through-hole 29 Engagement part 30 Protrusion part

Claims (5)

A valve switch for a valve that opens and closes by rotating a stem and a valve that opens and closes by rotating a handle,
A shaft member, a fitting member, and an engaging member;
The shaft member has a handle at the rear end;
The fitting member is provided at a tip of the shaft member, and has a fitting portion that is fitted to the stem and can rotate the stem together with the rotation of the shaft member,
The engaging member has a through-hole, is inserted through the through-hole so as to be movable in the length direction of the shaft member, is prevented from being detached by the fitting member, and is engaged with the fitting member through the through-hole. Having an engagement portion that engages with the handle in a state where the rotation is stopped and can rotate the handle together with the rotation of the shaft member,
Characteristic valve switch. In addition, it has a stopper,
The stopper is rotatably provided in the vicinity of the rear end of the fitting member so as to be selectively positioned at a storage position that allows passage of the through hole and a protruding position that blocks passage of the stopper.
The valve switch according to claim 1, wherein The fitting member has a flange portion that prevents the through-hole from passing around the tip portion, and the stopper has a pressing portion that sandwiches the engaging member between the flange portion and the stopper portion when in the protruding position. The
The valve switch according to claim 2, wherein The fitting member is formed so that the outer shape gradually increases from the rear end to the front end,
The through hole has a size that matches the outer shape of the intermediate position between the rear end and the front end of the fitting member,
The engaging member has a protrusion that protrudes from the edge of the through hole to the rear end side along the outer periphery of the fitting member when the through hole is fitted to the fitting member.
The valve switch according to claim 1, wherein 5. The valve switch according to claim 1, wherein the shaft member has a hook capable of hooking the engagement member in a state where the tip is directed downward.

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