JP2015010700A - Valve opening cock having opening display function - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a valve opening cock having opening display function enabling an opening or closing state of a stop valve to be visually acknowledged from the ground, thereby enabling the valve body that should be opened or closed to be prevented from being damaged or capable of preventing an incomplete closed state of the valve body in advance.SOLUTION: An opening meter 63 constitutes a planetary gear mechanism in which an external gear 632 is applied as an input unit, the external gear 632 is engaged with the first internal gear 630d (a fixed internal gear) having different tooth number and the second internal gear (a movable internal gear) having different tooth number coaxially arranged to each other so as to reduce a rotation of the second internal gear. Since the second internal gear is assembled into an opening display plate 634, the opening display plate 634 is rotated as the second internal gear is rotated. Since the opening display plate 634 is provided with an arrow 634b acting as an index indicating an opening of stop valve and an opening scale display part 630e is installed at an opening meter main body 630, these members may coact to perform a function for displaying a valve opening of the valve body of the stop valve.

Description

  The present invention relates to a valve opener with an opening degree display function used for opening and closing a water stop cock.

  Conventionally, a primary water stop cock connected to a water supply pipe for drawing into a water meter box installed in a residential land is buried in the ground at a depth of about 80 cm to 120 cm from the ground surface, for example. Normally, such stopcocks are not manually opened and closed by hand, but are manually opened and closed from the ground using a long, dedicated device called a valve opener (opening key). Is done.

  The above-mentioned stop cock is called a key stop cock. The stem portion provided above the valve shaft of the water stop cock is formed in a quadrangular shape or a triangular shape. On the other hand, a fitting recess corresponding to the shape of the stem portion of the water stop cock is formed on the lower end side of the valve stopper, and this fitting recess is fitted into the stem portion so that the valve stopper can be rotated clockwise or counterclockwise. By turning clockwise, a stop cock valve body (hereinafter referred to as “valve body”) can be opened and closed (see, for example, Patent Document 1 and Patent Document 2).

JP 2011-247321 A JP 2004-132504 A

  As described above, since the water stop cock is buried in the ground, it is difficult to visually confirm whether or not the valve body is in an open state. For this reason, when opening and closing the valve body using the valve opener described in Patent Documents 1 and 2, the operator turns the valve opener clockwise regardless of whether the valve body is open or not. The valve body is rotated in the direction or counterclockwise, and it is determined whether or not the valve element is in an open state at a position where the valve opening device does not rotate any more in either direction.

  However, operating the valve opener without knowing whether or not the valve body is in the open state always involves the risk of misdirection of the valve body. That is, even if the valve element is in the open state (or closed state), if the valve opener is further operated in the opening direction (or closing direction), excessive force acts on the stopper that stops the valve shaft, etc. There is a problem that the body may be damaged.

  Furthermore, since it is not known how much the valve element is open (or closed) during the rotation operation of the valve opener, the operator needs to work while counting the number of rotations of the valve opener. There is. However, there is a possibility that the operator may mistakenly count the number of rotations. As a result, there is a problem that the valve body is closed too much (or too open) or the valve body is incompletely closed.

  Therefore, the present invention makes it possible to visually confirm the open / close state of the stop cock, and thereby the opening degree display function that can prevent the valve body to be opened / closed from being damaged or the state where the valve body is not completely closed. It aims at providing a valve opener with a valve.

  The valve opening device with an opening degree display function of the present invention is provided at the rotating shaft and the lower end of the rotating shaft, and is fitted with the stem portion of the water stop cock so that the stem portion is rotated along with the rotation of the rotating shaft. A cap main body having a fitting portion for rotating the main body, a main body fixed to an inner wall of a valve housing connecting the valve chamber having a space surrounding the water stop cock and the ground surface via a support member, and rotation of the rotating shaft An opening meter having an index linked to the opening and an opening scale display, and a fixed connection to the upper end of the rotating shaft above the opening meter and separately prepared for rotating the rotating shaft And a socket connected to the handle.

  According to this configuration, the open / close state of the water stop cock can be visually recognized from the ground. As a result, it is possible to prevent damage to the valve body due to excessive closing (or too much opening) of the valve body and an incomplete state of blockage of the valve body.

  The support member has a cylindrical body and a circular recess formed in an upper part of the cylindrical body and having an upward opening for placing the opening degree meter. A plurality of dimensioning bolts may be fixed at equal intervals in the circumferential direction, and a high nut may be screwed to each dimensioning bolt. According to this configuration, each cutting bolt and each high nut are pressed against the inner wall of the valve housing in the radial direction, and the support member supporting the opening meter can be fixed to the inner wall of the valve housing, and the valve opener It can be located at the center of the valve housing.

  It is preferable that the rotation shaft and the cap body are connected via a universal joint. According to this configuration, the center of the hollow cylindrical valve housing that is connected to the ground surface from the valve chamber for protecting the stop cock embedded in the ground, and the center of the valve shaft that is the rotation shaft of the valve body The shift operation can be performed by absorbing the deviation.

  The rotating shaft is composed of an outer pipe and an inner pipe each having a hollow structure, and the inner pipe can be expanded and contracted in the axial direction with respect to the outer pipe by fitting the inner pipe into the outer pipe. It is preferable that the outer pipe is provided with a fixing member for fixing the inner pipe at an arbitrary position. According to this configuration, when the valve opener is used, the rotation operation can be performed by setting the rotation shaft to a desired length.

  A transparent protective plate that covers the upper surface of the opening meter may be provided between the opening meter and the socket. According to this configuration, the opening gauge can be protected even if earth and sand fall into the ground accidentally from the ground when the valve opener is rotated, and the stop cock can be opened and closed by removing the earth and sand adhering to the surface. You can see the state.

  According to the present invention, the open / close state of the stop cock can be visually recognized from the ground, and thereby the opening degree display function can prevent the valve body to be opened / closed from being damaged or the valve body from being completely closed. A valve opener with a valve can be provided.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an overall configuration diagram of a valve opener with an opening degree display function according to an embodiment of the present invention, and a diagram for explaining opening or closing operation by the valve opener. It is sectional drawing which shows the state which fitted the cap main body of the valve | bulb opener with an opening degree display function to the stem part of the water stop cock. It is a top view of the opening degree meter seen from the BB direction in FIG. It is a disassembled perspective view of each component of an opening meter. It is a top view which shows the back surface of the main body of an opening meter. It is a top view which shows the back surface of the opening degree display board of an opening meter. It is a figure which shows the back surface of the eccentric board of an opening meter. (A) shows a plan view and (b) shows a cross-sectional view. It is a figure which shows the state by which the upper end part of a rotating shaft is fixedly connected by the socket connected to the handle prepared separately in order to rotate a rotating shaft. It is a figure which shows the modification of the valve opener with an opening degree display function.

  Hereinafter, a valve stopper with an opening degree display function according to an embodiment of the present invention will be described with reference to the accompanying drawings. In the following description, terms indicating the direction and position (for example, “upper end” and “lower end”) are used for convenience, but these are for the purpose of facilitating the understanding of the invention. The technical scope of the invention is not limited. Further, the following description is merely an example of one embodiment of the present invention, and is not intended to limit the present invention, its application, or its use.

  As shown in FIG. 1, a valve chamber 3 that forms a space surrounding the stop cock 2 is formed around the stop cock 2 of the existing water pipe 1 embedded in which the internal fluid is clean water. At the upper end of the valve chamber 3, a valve housing 4 having a hollow cylindrical shape connected from the valve chamber 3 to the ground surface is formed. At the upper end of the valve housing 4 is provided a lid 5 having an upper surface substantially equal to the ground surface level and capable of being opened and closed from the ground.

  As shown in the figure, the stop cock 2 includes a valve body 20, a valve body 21 that opens and closes a flow path in the existing water pipe 1, and a valve that can rotate around the shaft 22 from the outside of the existing water pipe 1. The shaft 24 is constituted.

  By rotating the valve shaft 24 in the clockwise direction, the valve body 21 is raised and the existing water pipe 1 is opened. Conversely, when the valve shaft 24 is turned counterclockwise, the valve body 21 is lowered and the existing water pipe 1 is closed. On the other hand, a cap body 25 is attached to the upper end portion of the valve shaft 24 for connection to a valve opener described later.

  Next, the valve opener with an opening degree display function according to the embodiment of the present invention will be described. As shown in FIG. 1, the valve opening device 6 with an opening degree display function (hereinafter referred to as “valve opening device 6”) is provided at the telescopic rod 60 (rotating shaft) and the lower end of the telescopic rod 60. A lower cap 61 (cap body) provided, an opening meter 63 fixed to the inner wall of the valve housing via a support member 62 in the vicinity of the upper end of the telescopic rod 60, and an upper end portion of the telescopic rod 60 are fixedly connected. An upper cap 65 (socket) connected to a handle 64 separately prepared for rotating the telescopic rod 60 is provided. A protection plate 66 is provided between the opening meter 63 and the upper cap 65 to protect the opening meter 63 from earth and sand falling from the ground into the ground.

  The telescopic rod 60 is composed of an outer pipe 601 having a hollow quadrangular prism structure and an inner pipe 602 having an outer dimension slightly smaller than the inner dimension of the outer pipe 601. By fitting the inner pipe 602 into the outer pipe 601, the telescopic rod 60 can be telescopic.

  As illustrated, the outer pipe 601 is provided with a fixing member that fixes the inner pipe 602 at an arbitrary position. More specifically, a pair of through holes 605 and 606 through which the bolts 603 and 604 penetrate are formed on the two side walls of the outer pipe 601 at the upper end of the outer pipe 601. Nuts 607 and 608 that are screwed into the bolts 603 and 604 are fixed by welding at positions facing the through holes 605 and 606. By tightening the bolts 603 and 604, the outer pipe 601 and the inner pipe 602 are fixed by a frictional force caused by the tip portions of the bolts 603 and 604 coming into contact with the two side walls of the inner pipe 602.

  Thereby, at the time of use of the valve opener 6, the telescopic rod 60 can be set to a desired length and can be rotated.

  A round bar 609 inserted through the support member 62, the opening degree meter 63, and the protection plate 66 is welded to the upper end of the inner pipe 602. The round bar 609 has a diameter substantially equal to the length of the four sides of the inner pipe 602.

  In the present embodiment, the configuration of the rotation shaft of the valve opener 6 is exemplified by the telescopic rod 60 composed of the outer pipe 601 and the inner pipe 602. However, the present invention is not limited to this, and one rotation shaft is provided. You may comprise a solid round bar and a pipe.

  As shown in FIG. 2, the lower cap 61 is welded to the lower end of the outer pipe 601 and is detachably attached to the cap body 25 connected to the upper end of the valve shaft 24.

  The lower cap 61 is formed in a cap shape by cutting or forging a solid material or hollow material made of stainless steel, for example. As shown in the drawing, the lower cap 61 has a fitting hole 610 for fitting with a stem portion 250 having a quadrangular pyramid shape.

  The fitting hole 610 is formed in a shape corresponding to the stem portion 250 having a quadrangular pyramid shape. More specifically, the fitting hole 610 has an upper surface 611 that faces the upper end surface of the stem portion 250, and a trapezoidal engagement quadrangular pyramid surface 612 that is inclined from the upper surface 611 side toward the stem portion 250 side. . Note that the shape of the fitting hole 610 is not limited to the shape exemplified in the present embodiment, and can be appropriately changed according to the shape of the stem portion 250.

  As shown in FIGS. 1 and 4, the support member 62 is a member for supporting an opening meter 63 described later from below. Each of the support members 62 has a circular contour shape, and includes a lower sleeve 620 (cylindrical body) and a support receiving portion 621 formed on the upper portion of the lower sleeve 620.

  The lower sleeve 620 has an inner diameter that is larger than the diameter of the round bar 609. The support receiving portion 621 has a circular recess 622 having an outer diameter larger than the outer diameter of the lower sleeve 620 and having an upward opening. A through hole 623 that is substantially equal to the inner diameter of the lower sleeve 620 is formed at the bottom of the recess 622.

  A plurality of (three in the present embodiment) dimensioning bolts 624a, 624b, and 624c having a fixed length are fixed to the outer peripheral portion on the lower end side of the lower sleeve 620 at equal intervals (120 °) in the circumferential direction. Has been. Furthermore, high nuts 625a, 625b, and 625c are screwed into the respective dimension bolts 624a, 624b, and 624c.

  Each slicing bolt 624a, 624b, 624c and high nut 625a, 625b, 625c are moved to the position where the tip of each high nut 625a, 625b, 625c comes into contact with the inner wall of the valve housing 4, thereby making each slicing The bolt 624a, 624b, 624c and the high nuts 625a, 625b, 625c are pressed against the inner wall of the valve casing 4 in the radial direction to fix the support member 62 to the inner wall of the valve casing 4, and the telescopic rod 60 is fixed to the valve casing 4 (See FIG. 1).

  Next, the opening meter 63 will be described with reference to FIGS. As shown in FIG. 4, each of the opening meters 63 has a circular outline shape, and includes a main body 630, an external gear 632, an opening display plate 634, an eccentric plate 636, and a valve stem sleeve 638. Have

  As shown in FIG. 4, the main body 630 is formed with a circular recess 630a. The recess 630a has two step portions 631a and 631b. A first internal gear 630d having inwardly toothed portions is formed on the inner peripheral surface of the stepped portion 631a. A center hole 630b is formed in the stepped portion 631b. The number of teeth of the first internal gear 630d is set to 58, for example. On the upper surface of the main body 630 and on the outer edge of the main body 630, an opening scale display portion 630e is formed.

  Further, as shown in FIG. 5, on the lower surface side of the main body 630, a first annular protrusion 630f that fits into the recess 622 of the support receiving portion 621 is disposed coaxially with the center hole 630b.

  Returning to FIG. 4, the external gear 632 has a shaft hole 633 in the center, and has an outward tooth portion that meshes with the first internal gear 630 d and a second internal gear 634 d described later on the outer peripheral portion. It is an annular external gear, and the number of teeth is set to 53, for example. The external gear 632 is placed on the step portion 631b of the main body 630 so as to be eccentrically arranged with respect to the center of the first internal gear 630d inside the first internal gear 630d.

  The opening degree display plate 634 has an annular shape in which a circular opening 634a is formed at the center. At a predetermined position on the upper surface side of the opening degree display plate 634 and at the periphery of the opening degree display plate 634, the opening degree scale display unit 630e is used as an index indicating the opening degree of the stop cock 2. An arrow 634b is provided.

  On the other hand, as shown in FIG. 6, a second annular protrusion 634c that covers the vicinity of the tooth portion of the first internal gear 630d is formed on the lower surface side of the opening display plate 634. In addition, an inward tooth portion disposed coaxially with the first internal gear 630d (that is, disposed on the upper surface of the first internal gear 630d) is disposed on the inner peripheral edge of the second annular protrusion 634c. A second internal gear 634d having the same is formed. The number of teeth of the second internal gear 634d is set to 60, for example.

  Returning to FIG. 4, a valve rod through hole 636 a through which the round rod 609 passes is formed at the center of the eccentric plate 636. A pair of notches 636b are formed in the valve rod through hole 636a in the radial direction.

  On the other hand, as shown in FIGS. 7A and 7B, a first circular protrusion 636 c that fits into the opening 634 a of the opening degree display plate 634 is formed on the lower surface side of the eccentric plate 636. Further, on the lower surface side of the first circular protrusion 636c, a second circular protrusion 636e that fits with the shaft hole 633 of the external gear 632 is disposed with a predetermined distance offset with respect to the axis of the valve stem through hole 636a. Has been. As shown in the figure, a crescent-shaped depression 636d (thickening) is formed in the second circular protrusion 636e close to the right side of the valve rod through hole 636a.

  The valve stem sleeve 638 is formed in a cylindrical shape having an outer diameter that can be fitted into the valve stem through-hole 636a and an inner diameter through which the round rod 609 can be inserted. A pair of anti-rotation protrusions 639 corresponding to the notches 636b of the valve stem through hole 636a are formed on the outer periphery of the valve stem sleeve 638 along the axial direction.

  As shown in FIGS. 1, 3, and 4, a spacer ring 70 for positioning a mounting position of a protection plate 66 described later is inserted outside the valve stem sleeve 638. The valve stem sleeve 638 and the spacer ring 70 are fixed by fixing screws 71 provided at equal intervals (180 °) in the circumferential direction.

  As shown in FIG. 4, the main body 630, the external gear 632, the opening display plate 634, the eccentric plate 636, and the valve stem sleeve 638 configured as described above are arranged from the bottom to the top toward the paper surface. The opening meter 63 is completed by assembling the toothed gear 632, the opening display plate 634, the eccentric plate 636, and the valve stem sleeve 638 in this order (see FIG. 3). Then, after fitting the first annular protrusion 630f of the completed opening gauge 63 into the recess 622 of the support receiving portion 621 and fixing them with an adhesive or the like, the round bar 609 at the upper end of the inner pipe 602 is attached. By inserting the support member 62 from below the lower sleeve 620, the opening meter 63 can be attached to an extendable rod (not shown).

  As described above, the opening degree meter 63 of the present embodiment receives the external gear 632 as an input, and the external gear 632 is arranged on the first internal gear 630d (fixed internal gear) having the same number of teeth arranged coaxially. A planetary gear mechanism that meshes with the second internal gear 634d (movable internal gear) and decelerates the rotation of the second internal gear 634d.

  With this configuration, the reduction ratio of the opening meter 63 of the present embodiment is, for example, 1: 28.5. That is, when the external gear 632 makes one rotation inside the first internal gear 630d and the second internal gear 634d, the second internal gear 634d (open) with respect to the first internal gear 630d. The degree display plate 634) rotates 12.63 °. Thus, when the telescopic rod (not shown) is rotated 14 times, the arrow 634b is rotated 177 ° with respect to the scale display portion 630e.

  As shown in FIG. 8, the upper end of the round bar 609 is fixedly connected to the round bar 609 and is connected to a handle (not shown) separately prepared for rotating the round bar 609 (ie, the telescopic rod 60). 65 is provided. The upper cap 65 includes a circular fixed portion 650 and a convex portion 651 protruding upward from the fixed portion 650.

  As shown in the figure, the fixing portion 650 has a circular fitting hole 652 that fits with the upper end of the round bar 609. Further, two screw holes 653 having internal screws are formed at equal intervals (180 °) in the circumferential direction on the outer peripheral surface of the fixing portion 650, and hexagon socket bolts 654 are screwed into the screw holes 653. doing. A recess (not shown) in which the tip of the hexagon socket head cap screw 654 is fitted is formed at the upper end of the round bar 609 and facing the screw hole 653.

  By tightening the hexagon socket head cap screw 654, the upper end of the round bar 609 and the upper cap 65 are fixed by fitting the tip of the hexagon socket head cap screw 654 into the recess. The convex portion 651 is formed with a quadrangular pyramid body 655 for engaging with a handle (not shown) prepared separately.

  As shown in FIGS. 1 and 8, a protective plate 66 is inserted under the upper cap 65 to protect the opening meter from earth and sand falling from the ground into the ground (the spacer ring 70 is shown in the figure). Omitted.) The protection plate 66 is made of a transparent resin plate having a diameter substantially equal to the outer diameter of an opening meter (not shown). The protection plate 66 has a thickness (for example, 5 mm or more) that can withstand the weight and impact of earth and sand falling from the ground. The valve opener 6 according to the embodiment of the present invention is configured as described above.

  Next, the opening or closing operation of the valve body of the water stop valve using the valve opener according to the embodiment of the present invention will be described with reference to FIGS. First, the operator adjusts the length of the telescopic rod 60 of the valve opener 6 in accordance with the depth of the stop cock 2 embedded in the ground. Subsequently, the operator opens the lid 5 of the stop cock 2, inserts the valve opener 6 into the valve housing 4 from the ground, and attaches the lower cap 61 to the stem portion 250 of the cap body 25 above the valve shaft 24. Fit.

  Subsequently, the operator loosens the high nuts 625a, 625b, and 625c that are screwed into the cutting bolts 624a, 624b, and 624c extending in the radial direction from the lower sleeve 620 (support member 62), and the valve housing. 4 are moved to a position where the tips of the high nuts 625a, 625b, and 625c come into contact with the inner wall of 4.

  Then, the operator uses a tool such as a wrench so that each of the high nuts 625a, 624b, 624c and each of the high nuts 625a, 625b, 625c is pressed against the inner wall of the valve housing 4 in the radial direction. 625b and 625c are fixed. As a result, the support member 62 is fixed to the inner wall of the valve casing 4, and the telescopic rod 60 is disposed at the center of the valve casing 4. Thereby, installation of the valve opener 6 is completed.

  Subsequently, an opening handle 64 prepared separately is connected to the convex portion 651 of the upper cap 65. However, in a state where the lower cap 61 is fitted to the stem portion 250 of the cap body 25, the opening degree meter 63 does not correctly indicate the opening direction of the valve body 21. For this reason, the operator once rotates the handle 64 clockwise until the valve body 21 is opened, and indicates the opening direction of the valve body 21 and an arrow (not shown) of the opening meter 63. Perform adjustment work to match.

  When the above adjustment work is completed, when opening the existing water pipe 1, the handle 64 is rotated in the clockwise direction, and when closing the existing water pipe 1, the handle 64 is rotated in the counterclockwise direction. Let In either case, the operator performs a turning operation while visually confirming the opening degree of the valve body 21 indicated by an arrow (not shown) of the opening degree meter 63. As the handle 64 is rotated, the telescopic rod 60 is rotated clockwise or counterclockwise. In conjunction with this, the valve body 21 is raised (or lowered), and the existing water pipe 1 can be opened (or closed).

  In this case, the rotation input from the handle 64 is input to the external gear 632 in the opening meter 63, and the external gear 632 has a first internal gear 630d (having a different number of teeth arranged coaxially. The fixed internal gear) meshes with the second internal gear 634d (movable internal gear), and the rotation of the second internal gear 634d is decelerated. Specifically, the reduction ratio of the opening meter 63 is, for example, 1: 28.5, and the external gear 632 makes one rotation inside the first internal gear 630d and the second internal gear 634d. When this is done, the second internal gear 634d (opening display plate 634) is rotated 12.63 ° relative to the first internal gear 630d.

  Since the second internal gear 634d is incorporated in the opening display plate 634, the opening display plate 634 rotates in accordance with the rotation of the second internal gear 634d. The opening display plate 634 is provided with an arrow 634b as an index indicating the opening of the stop cock 2, and the main body 630 is provided with an opening scale display portion 630e. The function of displaying the valve opening degree of the valve body 21 of the faucet 2 is achieved. Specifically, when the upper cap 65 is rotated 14 times by the handle 64, the arrow 634b rotates 177 ° with respect to the scale display portion 630e.

  After opening (or closing) the existing water pipe 1, the lid 5 of the water stop cock 2 with the valve cap 6 installed in the valve housing 4 with the lower cap 61 fitted to the stem portion 250. Is closed, and the work of opening (or closing) the existing water pipe 1 is completed. Thereafter, the stop cock 1 can visually recognize from the ground whether or not the valve body 21 is in an open state. As a result, it is possible to prevent the valve body 21 from being damaged due to the valve body 21 being too closed (or too open) and the state where the valve body 21 is not completely closed.

  In this embodiment, the lower cap 61 is welded to the lower end of the outer pipe 601. However, the present invention is not limited to this, and as shown in FIG. A universal joint 80 may be interposed.

  According to this configuration, the telescopic rod 60 can be tilted around the universal joint 80 within an angle θ (for example, 30 °). Therefore, the center of the hollow cylindrical valve housing 4 connected to the ground surface from the valve chamber 3 for protecting the stop cock 2 buried in the ground, and the center of the valve shaft 24 serving as the rotation shaft of the valve body 21. The rotation operation can be performed while absorbing the deviation.

  Further, in the present embodiment, the example in which the opening degree meter 63 is disposed in the valve housing 4 to open or close the existing water pipe 1 has been described. However, the present invention is not limited to this, and for example, a stand is erected from the ground surface. It is also possible to open or close the existing water pipe 1 by installing an opening meter on the upper surface of the stand. In this case, the dimensioning bolts 624a, 624b, 624c, the high nuts 625a, 625b, 625c, and the protection plate 66 provided on the support member 62 are not necessary.

  1 existing water pipe, 2 stop cock, 3 valve chamber, 4 valve housing, 5 lid, 6 valve opener, 20 valve body, 21 valve body, 22 shaft, 24 valve shaft, 25 cap body, 60 telescopic rod, 61 Lower cap, 62 Support member, 63 Opening meter, 64 Handle, 65 Upper cap, 66 Protection plate, 70 Spacer ring, 250 Stem portion, 601 Outer pipe, 602 Inner pipe, 630 Main body, 630d First internal gear 632 External gear, 634 Opening indication plate, 634b Arrow, 636 Eccentric plate, 638 Valve stem sleeve

Claims (5)

A pivot axis;
A cap body provided at a lower end of the rotating shaft, and having a fitting portion that fits with the stem portion of the water stop cock and rotates the stem portion together with the rotation of the rotating shaft;
A main body fixed to the inner wall of the valve housing connecting the valve chamber having a space surrounding the stop cock and the ground surface via a support member;
An opening meter having an index and an opening scale display unit linked to the rotation of the rotation shaft;
An opening indication above the opening meter and having a socket fixedly connected to the upper end of the rotating shaft and connected to a handle prepared separately for rotating the rotating shaft Valve opener with function. The support member includes a cylindrical body and a circular recess formed in an upper part of the cylindrical body and having an upward opening for placing the opening meter,
The opening degree according to claim 1, wherein a plurality of dimensioning bolts are fixed to the outer peripheral part of the cylindrical body at equal intervals in the circumferential direction, and a high nut is screwed to each dimensioning bolt. Valve opener with display function.   The valve opening device with an opening degree display function according to claim 1 or 2, wherein the rotating shaft and the cap body are connected via a universal joint.   The rotating shaft is composed of an outer pipe and an inner pipe each having a hollow structure, and the inner pipe can be expanded and contracted in the axial direction with respect to the outer pipe by fitting the inner pipe into the outer pipe. The valve opening with opening degree display function according to any one of claims 1 to 3, wherein the outer pipe is provided with a fixing member for fixing the inner pipe at an arbitrary position. vessel.   The opening degree display function according to any one of claims 1 to 4, wherein a transparent protective plate that covers an upper surface of the opening degree meter is provided between the opening degree meter and the socket. Valve opener.

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