JP2020046007A - Open/close display apparatus for wrench-type on-off valve device, wrench-type on-off valve device cylinder container with valve - Google Patents

Abstract

To enable an opening/closing state of an on-off valve of a valve device to be visually recognized from outward easily, and prevent a valve device from being damaged by that the on-off valve is carelessly opened and the on-off valve is excessively tightened when externally operating a valve rod with a wrench.SOLUTION: An open/close display apparatus for a wrench-type on-off valve device includes: a base 20 mounted to a valve body 10 of a valve device 16; multiple autorotation gears 30 provided at an upper part of the base 20; a rotating body 40 having a rotating body side gear 40G; and a rotating display member 50 having a display unit 52 for displaying an opening/closing state of an on-off valve 18, and having a display body side gear 50G rotating mainly on a rotation center CL. The open/close display apparatus is characterized by being provided with: a visual recognition regulator 60 for constituting a differential rotation mechanism of the rotating display member 50 by the autorotation gear 30, the rotating body side gear 40G and the display body side gear 50G, and covered on the rotating display member 50 to regulate the visual recognition from the outside other than the opening; and a transmission cover 60 for rotatably covering the whole outside of the visual recognition regulator 60, and enabling the opening of the visual recognition regulator 60 to be visually recognized from the outside.SELECTED DRAWING: Figure 2

Description

  The present invention relates to an open / close display device and a wrench for a wrench-type on-off valve device in which a valve rod of an on-off valve device attached to a gas storage container (a cylinder container) such as a gas cylinder or a gas pipe is externally operated with a wrench. The present invention relates to an on-off valve device and a cylinder container with a valve.

  Generally, as an on-off valve device, a handle for rotating the valve stem of the valve device is integrally attached to the valve stem, and the on-off valve is moved up and down by rotating the handle to open and close the gas valve. A handle-type opening / closing valve device that regulates the inflow and outflow of a fluid such as a liquid, and a valve stem that is rotated by a wrench separate from the opening / closing valve device in place of the handle to open and close the on-off valve by moving it up and down. There are roughly two types of on-off valve devices, which are roughly classified into wrench-type on-off valve devices for restricting the flow of fluid.

The wrench-type on-off valve device does not have an on-off display mechanism for displaying the on-off state and on-off state of the on-off valve, and the on-off state of the on-off valve cannot be confirmed even from outside. Was.
For this reason, although the on-off valve is in the closed state, there has been a problem that the valve stem is excessively tightened by the wrench and that the on-off valve is opened carelessly.
On the other hand, as disclosed in Patent Literature 1, some handle-type on-off valve devices are provided with a mechanism for displaying the on-off state of the on-off valve.

When the opening / closing display mechanism attached to the handle-type opening / closing valve device is adopted for a cylinder container, the following problems arise.

  Since the cylinder container to which the valve unit is attached is heavy, when moving the cylinder container, the cylinder container is tilted without lifting the cylinder container, and the bottom of the container is brought into contact with the ground or the floor. In some cases, the cylinder container is moved by rotating the cylinder container with one hand while the operator supports the cylinder cap provided on the upper portion of the cylinder container with one hand and rotates the cylinder container with the other hand.

  For example, when a cylinder container equipped with a mechanism for displaying the open / closed state of an open / close valve provided in a handle-type open / close valve device is moved to a wrench-type open / close valve device attached to a cylinder container by rotating the cylinder container as described above, The mechanism that displays the open / closed state of the valve is a wrench-type open / close valve that is inadvertently opened or closed when the open / close valve that is fitted to the valve stem is overtightened. There was a problem that the device was damaged.

JP 2011-133443 A

  Therefore, an object of the present invention is to provide an opening / closing display device for a wrench-type opening / closing valve device, a wrench-type opening / closing valve device, and a cylinder container with a valve, in which the open / close state of the opening / closing valve of the wrench-type opening / closing valve device can be easily visually recognized from outside. And

  An opening / closing display device for a wrench-type opening / closing valve device according to the present invention is an opening / closing display device for a wrench-type opening / closing valve device in which a valve stem of an opening / closing valve of a valve device is externally operated by a wrench. A rotator having a pedestal attached to the main body, a plurality of rotating gears provided on an upper part of the pedestal, a rotator-side gear provided on an upper outer periphery of the pedestal and meshing with the rotating gear, and opening and closing of the valve device; A rotary display body having a display unit that displays one of a valve open state and a valve closed state, and a display body side gear that rotates about the rotation center of the valve rod, is provided, and the display body side gear is The number of teeth of the rotating body side gear is different from the number of teeth, the rotating body side gear meshing with the rotation gear, the display body side gear meshing with the rotation gear, and the rotation gear, A differential rotation mechanism that differentially rotates the rotary display body with respect to the rotary body is configured, and an opening that rotates integrally with the rotary body and that opens a required portion of the rotary display body so that it can be viewed from the outside. A viewing restriction body that covers the rotating display body and restricts a part other than the required part from being viewed from the outside, and rotatably covers the entire outside of the viewing restriction body, and at least includes the viewing restriction body. A transmission cover body that allows the opening to be visually recognized from the outside; and a central portion of the visibility control body is provided with a hole that fits with the valve stem and allows the valve stem to penetrate upward. It was formed.

  According to the present invention, the transmission cover body that rotatably covers the entire outer periphery of the viewing restriction body is provided, so that the open / closed state of the on-off valve of the valve device can be visually recognized from the outside, and the valve stem is wrenched with a wrench. At the time of external operation, the open / closed state of the on-off valve can be visually checked. Therefore, damage to the wrench-type on-off valve device due to careless opening of the on-off valve or excessive tightening of the on-off valve can be suppressed.

As an aspect of the present invention, the display section is formed in a tapered shape in which an outer peripheral side is lower and an inner peripheral side is higher.
According to the present invention, since the display section is formed in a tapered shape, when visually confirming the display section of the rotating display body through the opening of the transmission cover body and the viewing restricting body, it is not only directly above but also laterally or obliquely. It can be confirmed from above, and visibility can be improved.

As an aspect of the present invention, the display unit protrudes above an upper opening of a cylinder cap in a cylinder container to which the wrench-type opening / closing valve device is attached.
According to the present invention, the display portion protrudes upward through the upper opening of the cylinder cap, and the display portion has a tapered shape in which the outer peripheral side is lower and the inner peripheral side is higher. , Valve closed state) can be visually confirmed from both above and side.

As an aspect of the present invention, the pedestal is provided with a locking portion which is locked to the valve main body and fixes the pedestal to the valve main body.
According to the present invention, the locking portion of the pedestal is locked to the valve body, so that the pedestal can be prevented from coming off. Therefore, the open / close display device can be easily and reliably fixed to the valve body.

  In addition, the wrench-type on-off valve device according to the present invention includes an on-off valve disposed inside the valve body, and a valve stem for externally controlling the opening and closing of the on-off valve, and the valve stem is externally operated by a wrench. A wrench-type opening / closing valve device, comprising an opening / closing display device for displaying one of an open state and a closed state of the on-off valve, wherein the opening / closing display device includes a base attached to a valve body of the valve device. A plurality of rotating gears provided on an upper portion of the pedestal, a rotating body provided on an outer periphery of an upper portion of the pedestal, and having a rotating body side gear meshing with the rotating gears, and an open / closed state of an on-off valve of the valve device. A rotating display body having a display unit for displaying one of a valve closed state and a display body side gear that rotates about the rotation center of the valve rod, wherein the display body side gear is the rotating body side gear The rotating display body is configured with a number of teeth different from the number of teeth, the rotating body side gear meshing with the rotation gear, the display body side gear meshing with the rotating gear, and the rotating gear. A differential rotation mechanism configured to differentially rotate the rotation display body is configured to rotate integrally with the rotation body, and has an opening that opens a required portion of the rotation display body so as to be visible from the outside, and is covered with the rotation display body. A visibility restricting body that regulates visibility of a portion other than the required portion from the outside, and rotatably covers the entire outside of the visibility regulating body, and at least transparently transmits the opening of the visibility regulating body from the outside. A transmission cover body is provided, and a hole is formed in the center of the visual restriction body so as to be fitted with the valve stem and through which the valve stem can penetrate upward.

  According to the present invention, the opening / closing display device is provided in a wrench-type opening / closing valve device, and a transmission cover body that rotatably covers the entire outer periphery of the viewing restriction member is provided, thereby opening the opening / closing valve of the valve device. In addition, the closed state can be visually recognized from the outside, and when the valve stem is externally operated with a wrench, the open / closed state of the on-off valve can be visually checked. Therefore, it is possible to prevent the on-off valve from being opened carelessly, and it is possible to prevent the wrench-type on-off valve device from being damaged due to excessive tightening of the on-off valve.

  Further, in the cylinder container with a valve according to the present invention, the wrench-type opening / closing valve device is attached to an upper end of the cylinder container, the cylinder container has a cylinder cap having an upper end opened at an upper part, and at least the transmission cover body and The visual restriction body is formed to have a smaller diameter than the upper opening of the cylinder cap.

  According to the present invention, since the diameter of the transmission cover body and the visibility control body is smaller than that of the upper opening of the cylinder cap, the transmission cover body and the visibility control body can be securely stored in the cylinder cap. The open / closed state of the on-off valve of the device can be easily visually recognized from outside.

  In addition, the cylinder container, which is a heavy object with the valve device and the opening / closing display device attached to the upper end, is inclined, and the bottom of the container is brought into contact with the ground or the floor, and the worker uses one hand to move the outer periphery of the opening / closing display device. When the cylinder container is moved with the other hand by rotating the cylinder container with the other hand, the transparent cover body of the open / close display device is configured to be rotatable, so that the open / close valve is inadvertently opened. In addition, it is possible to prevent the wrench-type on-off valve device from being damaged due to the over-tightening of the on-off valve.

As an aspect of the present invention, the display section is formed in a tapered shape in which an outer peripheral side is lower and an inner peripheral side is higher.
According to the present invention, since the display portion is formed in a tapered shape, when the open / closed state of the on-off valve of the valve device in the cylinder container is visually confirmed from outside, not only directly above but also obliquely from above. It can be confirmed and visibility can be improved.

As an aspect of the present invention, an outer peripheral end of the display unit in the rotary display body projects above the upper opening of the cylinder cap.
According to the present invention, the display portion protrudes above the upper opening of the cylinder cap, and the display portion has a tapered shape in which the outer peripheral side is lower and the inner peripheral side is higher. , Valve closed state) can be visually confirmed from both above and side.

  ADVANTAGE OF THE INVENTION According to this invention, the open / close state of the open / close valve of the wrench type open / close valve device can be easily visually recognized from the outside, and when the valve stem is operated externally with a wrench, the open / close valve is inadvertently opened or closed. Has an effect that it is possible to prevent the wrench-type opening / closing valve device from being damaged due to excessive tightening.

Explanatory view showing a wrench type opening / closing valve device of the present invention and a cylinder container with a valve provided with the opening / closing display device. Main part enlarged sectional view of FIG. Exploded view showing opening / closing display equipment for a wrench type opening / closing valve device Bottom view of pedestal with rotating gear Plan view of the viewing restriction body and the rotating display body shown with the transparent cover body removed Principal part enlarged sectional view showing another embodiment of a cylinder container with a valve

  The open / closed state of the on / off valve of the valve device can be easily visually recognized from the outside, and when operating the valve stem externally with a wrench, the on / off valve is inadvertently opened or the wrench is overtightened by overtightening. An opening / closing display device for a wrench-type on-off valve device in which a valve stem of an on-off valve of the valve device is externally operated by a wrench, for the purpose of suppressing damage to the on-off valve device, wherein the valve body of the valve device is provided. A rotator, a plurality of rotation gears provided on an upper portion of the pedestal, a rotator provided on an outer periphery of an upper portion of the pedestal, and a rotator-side gear meshing with the rotation gear; and an on-off valve of the valve device. A display unit for displaying one of a valve-open state and a valve-closed state, and a rotation display unit having a display-side gear that rotates about the rotation center of the valve stem, and the display The side gear is configured with a number of teeth different from the number of teeth of the rotating body side gear, and the rotating body side gear meshing with the rotating gear, the display body side gear meshing with the rotating gear, and the rotating gear, A differential rotation mechanism configured to differentially rotate the rotary display body with respect to the body is configured, and has an opening that rotates integrally with the rotary body and opens a required portion of the rotary display body so that it can be visually viewed from the outside. A viewing restricting body that is placed on the rotating display body and restricts a part other than the required part from being viewed from outside, and rotatably covers the entire outside of the viewing restricting body, and at least the opening of the viewing restricting body. A transparent cover body that allows the portion to be visually recognized from the outside is provided, and a central portion of the visibility control body is formed with a hole that fits with the valve stem and allows the valve stem to penetrate upward. In a configuration that Represents was.

One embodiment of the present invention will be described below in detail with reference to the drawings.
The drawings show an opening / closing display device for a wrench-type opening / closing valve device, a wrench-type opening / closing valve device, and a cylinder container with a valve. FIG. 1 shows a wrench-type opening / closing valve device of the present invention and a valve-equipped cylinder container provided with the opening / closing display device. FIG. 2 is an enlarged sectional view of a main part of FIG. 1, FIG. 3 is an exploded view showing an opening / closing display device for a wrench type opening / closing valve device, FIG. 4 is a bottom view of a base provided with a rotating gear, and FIG. FIG. 4 is a plan view of the viewing restricting body and the rotating display body in a state where a transmission cover body is removed. FIG. 1 shows only the upper part of a cylinder container with a valve provided with an open / close display device.

As shown in FIG. 1, a neck portion 2 is integrally formed at an upper end of a cylinder container 1, and a cylinder cap 4 having an open upper end is attached to a male screw portion 3 formed on the outer periphery of the neck portion 2.
At the center of the neck portion 2 is mounted a wrench-type opening / closing valve device 6 in which a valve stem (refer to a spindle 11) described later is externally operated by a wrench 5 (specifically, a socket wrench having a rectangular cylindrical hole). Have been. In this embodiment, a container valve device (hereinafter simply referred to as a valve device 6) is adopted as the opening / closing valve device 6.

An opening / closing display device 7 having an overall shape smaller than the upper end opening 4a of the cylinder cap 4 is provided at an upper portion of the valve device 6.
In the case where the valve device 6 is used for fluid piping such as gas piping instead of opening and closing the container, a piping valve device can be used.

  As shown in an enlarged sectional view in FIG. 2, the valve device 6 includes a valve housing 8 and a ground nut 9 screwed and fixed to an upper end hole 8a (specifically, a screw hole) of the valve housing 8. A valve body 10 is provided.

  Holes 9a and 8b are vertically communicated with the shaft core of the ground nut 9 and the central portion of the valve housing 8 in order to mount a spindle 11 as a valve stem extending vertically. A spindle 11 is mounted in each of 9a and 8b. A seal member 9d such as an O-ring is provided between the outer periphery of the shaft portion 11b of the spindle 11 and the hole 9a of the ground nut 9.

As shown in FIG. 2, the spindle 11 is formed by integrally forming an upper prism 11a, a shaft 11b, a flange 11c, a lower prism 11d, and a lower shaft 11e in this order from top to bottom. Is provided on the outside of the lower prism 11d with an intermediate conductive member 12 which is screwed up and down in the hole 8b of the valve housing 8 by the rotation of the spindle 11, and is recessed at the lower end of the intermediate conductive member 12. The closing member 13 is fitted into the formed fitting recess 12a.
The closing member 13 is an elastic member having a circular shape in a plan view, and is configured so that the opening valve seat 8c can bite in the valve closed state (the state shown in FIG. 2).

  In the valve housing 8, an inlet passage 8d is formed as a primary passage extending vertically with respect to the hole 8b via an opening valve seat 8c. An outlet flow path 8e as a secondary flow path is formed so as to be orthogonal to the flow path 8d. Further, a branch path 8f is formed in the middle of the inlet flow path 8d in the vertical direction, and a branch path 8f is formed. A safety valve 15 is screwed and fixed to the outer end via a gasket 14.

The safety valve 15 includes a rupture plate (not shown) made of a copper alloy, a pressing plug 16, and a fusible plug 17.
Here, the spindle 11, the intermediate conductive member 12, and the closing member 13 constitute an on-off valve 18 for closing or opening the opening valve seat 8c between the inlet channel 8d and the outlet channel 8e. . That is, the on-off valve 18 is disposed inside the valve body 10, and a spindle 11 for externally operating the on-off operation of the on-off valve 18 is provided, and the spindle 11 is externally operated by the wrench 5.

  As shown in FIG. 1, a container mounting portion 8g is integrally formed at a lower portion of the valve housing 8, and the container mounting portion 8g is screwed and fixed to the center of the neck portion 2 of the cylinder container 1, and the container mounting portion 8g is formed. An inlet flow path 8 d extending vertically in the valve housing 8 including the above is communicated with the inside of the cylinder container 1.

  As shown in FIGS. 2 and 3, the open / close display device 7 includes a pedestal 20 attached to the valve body 10 of the valve device 6, and a pinion gear 30 (a planetary gear mechanism) provided as a plurality of rotation gears provided on the pedestal 20. A planetary gear corresponding to a planetary gear of the above), a rotating body 40 provided on the outer periphery of the upper part of the pedestal 20, a rotating display body 50 that rotates about a rotation center CL of the spindle 11 as a valve rod, and a rotating display body 50. The viewing restricting body 60 is integrally rotated with the rotating body 40 and a transparent cover body 70 as a transparent cover body rotatably covering the entire outside of the viewing restricting body 60.

As shown in FIGS. 3 and 4, the pedestal 20 is formed on a ring portion 21, an annular groove 22 formed at a vertically intermediate portion of the outer periphery of the ring portion 21, and an upper portion of the annular groove 22. Annular notch 23.
The lower end of a transparent cover 70 is rotatably mounted in the annular groove 22, and the rotating body 40 is disposed in the annular notch 23.

A plurality of holes 25 are provided in the upper land portion 24 of the pedestal 20 for disposing the pinion gear shaft 32 of the pinion gear 30 including the pinion 31 and the pinion gear shaft 32.
In this embodiment, a total of six holes 25 are provided at equal intervals of 60 degrees, and the base of the pinion gear shaft 32 is disposed in a total of three holes 25, and the pinion gear 30 has a 120-degree angle. It is configured to be arranged at equal intervals.

  As shown in FIGS. 3 and 4, the center of the land portion 24 of the pedestal 20 is opened so that the head 9 b of the ground nut 9 can be disposed, and a fitting hole 26 is formed. A plurality of locking claws 27 as locking portions protruding inward from the fitting holes 26 are provided. In this embodiment, a total of 12 locking claws 27 are formed at equal intervals of 30 degrees on the circumference, but the number of formed locking claws 27 is not limited to this.

  As shown in FIG. 2, the ground nut 9 has a head portion 9b and a screw portion 9c having a smaller diameter than the head portion 9b. The pedestal 20 is fixed to the valve body 10 to prevent the pedestal 20 from coming off.

As shown in FIGS. 2 and 3, the rotating body 40 is provided above the annular notch 23 on the upper periphery of the pedestal 20, and has an internal gear 40 </ b> G as a rotating body side gear that meshes with the pinion gear 30. . The internal gear 40 </ b> G is an internal gear integrally formed on the inner periphery of the ring portion 41 of the rotating body 40.
An annular notch 42 is provided on the outer periphery of the ring portion 41 to mount the lower end of the viewing restriction body 60.

As shown in FIGS. 2 and 3, the rotary display body 50 includes a ring portion 51, and a sun gear as a display side gear formed on the inner periphery of the ring portion 51 and rotated about the rotation center CL of the spindle 11. 50G and a display unit 52 formed integrally with the upper part of the ring unit 51 and displaying one of the open state and the closed state of the on-off valve 18 of the valve device 6.
The sun gear 50G meshes with the pinion gear 30, and the sun gear 50G has a number of teeth different from the number of teeth of the internal gear 40G.

  A differential rotation that differentially rotates the rotation display body 50 with respect to the rotating body 40 by an internal gear 40G meshing with the pinion gear 30, which is a rotation gear, a sun gear 50G meshing with the pinion gear 30, and the pinion gear 30. A mechanism 80 is configured.

As is clear from FIG. 2, the rotational force of the spindle 11 as a valve rod is transmitted from the viewing restricting body 60 to the rotating body 40 that rotates integrally with the viewing restricting body 60, and the internal gear 40G of the rotating body 40 shifts from the pinion gear 30 to the pinion gear 30. Is transmitted from the pinion gear 30 to the sun gear 50G to rotate the rotary display body 50 in the same direction as the rotation direction of the spindle 11.
In this embodiment, the number of teeth of the sun gear 50G is set to be larger than the number of teeth of the internal gear 40G, and the rotation display body 50 rotates slowly with respect to the rotation of the rotating body 40, that is, a reduction mechanism that rotates at a reduced speed. doing.

  As shown in FIG. 3, the display unit 52 integrally formed on the upper part of the rotary display body 50 is formed in a tapered shape in which the outer peripheral side is low and the inner peripheral side is high, and the surface of the display unit 52 is formed in a circular shape. The upper surface is equally divided into approximately 45 degrees, and the divided surface area includes an open display portion 52a for displaying the open / closed state of the on-off valve 18 of the valve device 6 with the letters "open" and a closed state for the valve closed state. ] Are alternately divided into a closed display portion 52b which is displayed with the character "."

  When the wrench 5 is mounted on the upper prism 11a of the spindle 11, and the spindle 11 is screwed and rotated by the wrench 5 in the tightening direction, the intermediate conductive member 12 is pressed downward, and the fitting recess 12a of the intermediate conductive member 12 is fitted. The opening valve seat 8c is sealed by the closing member 13 fitted to the opening. This state is referred to as a valve closed state (fully closed state).

Conversely, when the spindle 11 is rotated in the loosening direction with the wrench 5 and the spindle 11 is screwed out, the intermediate transmission tool 12 moves upward via the spindle 11, the opening valve seat 8c is opened, and the entrance is opened. The flow path 8d and the outlet flow path 8e communicate with each other via the opening valve seat 8c. This state is referred to as a valve open state.
The rotation indicator 50 displays one of the open state and the closed state of the on-off valve 18 of the valve device 6 on a display section 52 thereof.

As shown in FIG. 2, the visual restriction body 60 is formed to have a smaller diameter than the upper end opening 4 a of the cylinder cap 4.
As shown in FIG. 3, the visual restriction body 60 is located at the center thereof, is fitted with the upper prism 11 a of the spindle 11, and has a hole 61 through which the spindle 11 can pass upward. A central portion 62 having a disc shape in a plan view, a ring portion 63 rising from the outer periphery of the central portion 62, and a radially outwardly extending from an upper end of the ring portion 63 as shown in FIGS. A plurality of upper surface portions 64 formed in a cross shape when viewed from the outside, and a plurality of side surface portions 65 extending downward from outer ends of the upper surface portions 64 and having lower ends in contact with the annular notches 42 of the rotating body 40, And an opening 66 formed between the upper surface portions 64 and 64.

  As shown in FIG. 3, the inner peripheral portion of the ring portion 63 has a large diameter at the upper part and a small diameter at the lower part. The transparent cover 70 is rotated between the large diameter part and the small diameter part. An annular stepped portion 67 that is freely arranged is formed.

  Further, the upper surface portion 64 is formed in a tapered shape corresponding to the tapered shape of the display portion 52 of the rotary display body 50 such that the outer peripheral side is lower and the inner peripheral side is higher. As shown in FIG. 5, the circumferential width of the upper surface portion 64 arranged in a cross shape in plan view is such that the plurality of open display portions 52a or the plurality of closed display portions 52b of the display portion 52 of the rotary display body 50 are simultaneously formed. Similarly, the circumferential width of the opening 66 is the circumferential width at which the plurality of open display sections 52a or the plurality of closed display sections 52d of the display section 52 are simultaneously opened so as to be visible from the outside. Is set to

In other words, the viewing restricting body 60 has an opening 66 that rotates integrally with the rotating body 40 and opens a required portion of the display unit 52 of the rotating display body 50 so as to be visible from the outside. It covers the part other than the required part from being viewed from outside.
That is, the upper surface portion 64 shown in FIG. 5 is configured to have a blind function.

As shown in FIGS. 1 to 3, the transparent cover body 70 is formed to have a smaller diameter than the upper end opening 4 a of the cylinder cap 4.
Further, the transparent cover body 70 includes a ring portion 71 having a diameter larger than the outer circumference of the socket portion of the wrench 5 so that the wrench 5 mounted on the upper prism 11 a of the spindle 11 can be easily operated. An annular upper surface portion 72 extending radially outward from the upper end and an annular side surface portion 73 extending downward from the outer periphery of the upper surface portion 72 are integrally formed by a transparent member.

  A plurality of inward projections 74 that are rotatably mounted on the annular groove 22 of the pedestal 20 are integrally formed on the inner periphery of the lower end of the side surface portion 73. The upper surface portion 72 is formed in a tapered shape in which the outer peripheral side is lower and the inner peripheral side is higher in order to correspond to the tapered shape of the display portion 52 of the rotary display body 50 and the tapered shape of the upper surface portion 64 of the viewing restricting body 60. ing.

The transparent cover body 70 rotatably arranges the outer peripheral surface of the ring portion 71 on the ring portion 63 of the viewing restriction body 60 with the lower end of the ring portion 71 placed on the upper surface of the stepped portion 67 of the viewing restriction body 60. At the same time, a plurality of inward projections 74 at the lower end of the side surface portion 73 are rotatably mounted in the annular groove 22 of the pedestal 20, and the inward projections 74 prevent the transparent cover 70 from coming off.
In other words, the transparent cover body 70 is a cover body that rotatably covers the entire outside of the viewing restricting body 60 and transmits at least the opening 66 of the viewing restricting body 60 so as to be visible from the outside.

  As described above, since the entirety of the transparent cover body 70 is transparent, the display unit 52 of the rotary display body 50 can be visually recognized from the outside through the opening 66 of the visibility control body 60, and the open / close state of the on-off valve 18 The degree of opening and closing as a valve closed state or an intermediate between these two states can be visually confirmed from the outside.

  As described in detail above, the opening / closing display device for the wrench-type opening / closing valve device of the above embodiment is a wrench-type opening / closing device in which the valve stem (see the spindle 11) of the opening / closing valve 18 of the valve device 6 is externally operated by the wrench 5. An opening / closing display device 7 for a valve device, comprising: a pedestal 20 attached to a valve body 10 of the valve device 6; a plurality of rotating gears (see pinion gears 30) provided above the pedestal 20; A rotating body 40 provided on the outer periphery of the upper part of the rotating device and having a rotating body side gear (refer to an internal gear 40G) meshing with the rotation gear (pinion gear 30); an open state and a closed state of the on-off valve 18 of the valve device 6; And a display unit-side gear (see sun gear 50G) that rotates around a rotation center CL of the valve stem (spindle 11). The display-side gear (sun gear 50G) has a number of teeth different from the number of teeth of the rotator-side gear (internal gear 40G), and meshes with the rotation gear (pinion gear 30). The rotating body-side gear (internal gear 40G), the display body-side gear (sun gear 50G) that meshes with the rotating gear (pinion gear 30), and the rotating gear (pinion gear 30) with respect to the rotating body 40. A differential rotation mechanism 80 for differentially rotating the rotary display body 50 is configured, and has an opening 66 that rotates integrally with the rotary body 40 and opens a required portion of the rotary display body to be visible from the outside. A viewing restricting body 60 that is placed on the rotating display body 50 and restricts a part other than the required part from being viewed from outside; A transparent cover body (see transparent cover body 70) that rotatably covers the body and transmits at least the opening 66 of the viewing restriction body 60 so as to be visible from the outside, and a central portion of the viewing restriction body 60. The hole 62 is formed with a hole 61 that fits with the valve stem (spindle 11) and through which the valve stem (spindle 11) can penetrate upward (see FIGS. 1 to 5). Since the transparent cover body (transparent cover body 70) that rotatably covers the entire outer periphery of the visibility control body 60 is provided, the open / closed state of the on-off valve 18 of the valve device 6 can be visually recognized from the outside, and the valve When the rod (spindle 11) is externally operated with the wrench 5, the open / closed state of the on-off valve 18 can be visually checked. Therefore, it is possible to prevent the valve device 6 from being damaged due to the careless opening of the on-off valve 18 or excessive tightening of the on-off valve 18.

  Further, since the display section 52 is formed in a tapered shape in which the outer peripheral side is lower and the inner peripheral side is higher (see FIGS. 2 and 3), since the display section 52 is formed in a tapered shape, the light is transmitted. When visually checking the display unit 52 of the rotary display body 50 through the cover body (transparent cover body 70) and the opening 66 of the viewing restriction body 60, it is possible to check not only directly from above but also from the side or obliquely from above. And visibility can be improved.

  Further, the pedestal 20 is provided with a locking portion (see a locking claw 27) for locking the pedestal 20 to the valve main body 10 by locking to the valve main body 10 (FIG. 2). Therefore, since the locking portion (locking claw 27) of the pedestal 20 is locked to the valve body 10, the pedestal 20 can be prevented from coming off. Therefore, the open / close display device can be easily and reliably fixed to the valve device 6.

  Further, the wrench-type on-off valve device of the above embodiment has an on-off valve 18 disposed inside the valve body 10 and a valve stem (see the spindle 11) for externally operating the on-off operation of the on-off valve 18. A wrench-type opening / closing valve device (see valve device 6) in which a rod (spindle 11) is externally operated by a wrench 5, and an opening / closing display device for displaying one of an open state and a closed state of the on-off valve 18. The open / close display device 7 includes a pedestal 20 attached to the valve body 10 of the valve device 6, a plurality of rotating gears (see pinion gears 30) provided above the pedestal 20, and the pedestal 20. A rotating body 40 provided on the outer periphery of an upper part of the rotating device and having a rotating body side gear (internal gear 40G) meshing with the rotation gear (pinion gear 30); 8 has a display unit 52 for displaying one of the valve open state and the valve closed state, and a display body side gear (see sun gear 50G) that rotates about the rotation center CL of the valve rod (spindle 11). The display body-side gear (sun gear 50G) has a number of teeth different from the number of teeth of the rotating body-side gear (internal gear 40G), and the rotating body side meshed with the rotation gear (pinion gear 30). The rotation display body is formed by a gear (internal gear 40G), the display body-side gear (sun gear 50G) meshing with the rotation gear (pinion gear 30), and the rotation gear (pinion gear 30). A differential rotation mechanism 80 for differentially rotating the rotating body 50 is configured to rotate integrally with the rotating body 40, and a required portion of the rotating display body 50 A viewing restriction body 60 that has an opening 66 that is open so as to be visible and covers the rotary display body 50 and restricts visual recognition of a portion other than the required portion from outside, and the entire outside of the viewing restriction body 60. A transparent cover (see transparent cover 70) that rotatably covers and at least allows the opening 66 of the viewing restricting body 60 to be visible from the outside is provided at the center 62 of the viewing restricting body 60. Has a hole 61 through which the valve stem (spindle 11) is fitted and the valve stem (spindle 11) can penetrate upward (see FIGS. 1 to 5). The opening / closing display device 7 is provided in an opening / closing valve device (see the valve device 6), and a transparent cover body (transparent cover body 70) that rotatably covers the entire outer periphery of the viewing restriction body 60 is provided. The open / closed state of the on-off valve 18 of the valve device 6 can be visually recognized from the outside, and when the valve stem (spindle 11) is operated externally with the wrench 5, the on-off valve 18 is opened and closed. Can be visually confirmed. Therefore, careless opening of the on-off valve 18 can be suppressed, and damage to the valve device 6 due to excessive tightening of the on-off valve 18 can be suppressed.

  Further, in the cylinder container with valve 1 of the above embodiment, the wrench-type opening / closing valve device (valve device 6) is attached to the upper end of the cylinder container 1, and the cylinder container 1 has a cylinder cap 4 having an upper end opened. At least the transparent cover body (transparent cover body 70) and the viewing restriction body 60 are formed to have a smaller diameter than the upper opening (see the upper end opening 4a) of the cylinder cap 4 (see FIG. 1). Therefore, the transparent cover body (transparent cover body 70) and the visibility restricting body 60 have smaller diameters than the upper opening (upper end opening 4a) of the cylinder cap 4, so that the transparent cover body (transparent cover body 70) and the visibility regulating body 60 have smaller diameters. The body 60 can be securely stored in the cylinder cap 4, and the open / closed state of the on-off valve 18 of the valve device 6 in the cylinder container 1 can be easily visually recognized from outside. Rukoto can.

  In addition, the cylinder container 1 which is a heavy object having the valve device 6 and the opening / closing display device 7 attached to the upper end portion is inclined, and the bottom portion of the container is brought into contact with the ground or the floor surface. When the cylinder container 1 is moved by supporting the outer periphery of the device 7 and rotating the cylinder container 1 with the other hand, the transparent cover body (transparent cover body 70) of the open / close display device 7 is configured to be rotatable. Therefore, it is possible to prevent the valve device 6 from being damaged due to the careless opening of the on-off valve 18 or excessive tightening of the on-off valve 18.

  Further, since the display section 52 is formed in a tapered shape in which the outer peripheral side is lower and the inner peripheral side is higher (see FIG. 2), the display section 52 is formed in a tapered shape. When the open / closed state of the on-off valve 18 of the valve device 6 is visually recognized from the outside, it can be visually confirmed not only directly above but also obliquely from above, and the visibility can be improved.

FIG. 6 is an enlarged sectional view of a main part showing another embodiment of a cylinder container with a valve.
In the embodiment shown in FIG. 2, the outer peripheral end of the display section 52 of the rotary display body 50 is positioned at the upper end opening 4a of the cylinder cap 4 of the cylinder container 1 (see FIG. 1) to which the wrench type opening / closing valve device is attached. Although a structure in which the valve unit 6 is recessed below the top is shown, in this embodiment shown in FIG. 6, the outer peripheral end of the display unit 52 has the upper end opening 4a of the cylinder cap 4 of the cylinder container 1 to which the valve device 6 is attached. Projecting upward from the top of the.

  As described above, the display section 52 projects upward from the head of the upper opening 4a of the cylinder cap 4, and the display section 52 is tapered such that the outer peripheral side is lower and the inner peripheral side is higher. The display contents (opening / closing state of the on-off valve) can be visually confirmed from both above and side.

In correspondence between the configuration of the present invention and the above-described embodiment,
The valve stem of the on-off valve according to the present invention corresponds to the spindle 11 of the embodiment, and similarly,
The rotation gear corresponds to the pinion gear 30,
The rotating body side gear corresponds to the internal gear 40G,
The display body side gear corresponds to the sun gear 50G,
The transparent cover body corresponds to the transparent cover body 70,
The locking portion provided on the pedestal corresponds to the locking claw 27,
The upper opening of the cylinder cap corresponds to the upper end opening 4a,
The present invention is not limited only to the configuration of the above embodiment.

For example, in the above-described embodiment, a container valve device is exemplified as the valve device 6, but this valve device may be applied to a piping valve device.
Although the display contents of the open display section 52a and the closed display section 52b of the display section 52 are exemplified by the characters "open" and "closed", the display of these characters differs between "open" and "closed". Colors may be used together. Furthermore, instead of displaying "open" and "closed", foreign language characters such as English and Korean characters such as "O" and "C", their abbreviations, or symbols may be displayed.

  Further, the display area of the display unit 52 is set to four areas each having a predetermined width on the circumference, separated by an opening angle of 90 degrees on the circumference. The distance may be set to two regions, respectively, or may be set to three regions, each separated by an opening angle of 120 degrees on the circumference.

Further, the differential rotation mechanism 80 is a speed reduction mechanism in which the rotary display 50 rotates relatively slowly, but may be a speed increasing mechanism in which the rotary display 50 rotates relatively quickly.
Further, the opening / closing display device 7 may be configured to be housed inside the cylinder cap 4.

  INDUSTRIAL APPLICABILITY As described above, the present invention is useful for an opening / closing display device for a wrench-type on-off valve device in which a valve stem of an on-off valve of a valve device is externally operated by a wrench, a wrench-type on-off valve device, and a cylinder container with a valve. is there.

1: cylinder container 4: cylinder cap 4a: upper end opening (upper opening)
5 Wrench 6 Valve device 7 Open / close display device 10 Valve body 11 Spindle (valve rod)
18 Opening / closing valve 20 Base 27 Locking claw (locking portion)
30 pinion gear 40 rotating body 40G internal gear (rotating body side gear)
50 ... Rotating display body 50G ... Sun gear (display body side gear)
Reference numeral 52: display unit 60: viewing restriction body 61: hole 62, central part 66, opening 70, transparent cover (transparent cover)
80: Differential rotation mechanism CL: Rotation center

Claims (8)

An opening / closing display device for a wrench-type on-off valve device in which a valve stem of an on-off valve of a valve device is externally operated by a wrench,
A pedestal attached to the valve body of the valve device;
A plurality of rotating gears provided on the upper part of the pedestal,
A rotating body that is provided on the upper outer periphery of the pedestal and has a rotating body side gear that meshes with the rotation gear;
A display unit that displays one of an open state and a closed state of the on-off valve of the valve device, and a rotation display body that has a display body-side gear that rotates about the rotation center of the valve stem,
The display body side gear is configured with a number of teeth different from the number of teeth of the rotating body side gear,
The rotating body side gear meshing with the rotation gear, the display body side gear meshing with the rotation gear, and the rotation gear, a differential rotation mechanism that differentially rotates the rotating display body with respect to the rotating body. Composed,
It has an opening that rotates integrally with the rotating body and opens a required part of the display body so that the required part can be viewed from the outside, and is covered with the rotating display body, and restricts a part other than the required part from being viewed from the outside. Visibility control body,
A rotatable cover that rotatably covers the entire outside of the visibility control body and that transmits at least the opening of the visibility control body so as to be visible from the outside is provided,
An opening / closing display device for a wrench-type opening / closing valve device, wherein a central portion of the visual restriction body is fitted with the valve stem, and a hole through which the valve stem can penetrate is formed. The display unit,
The opening / closing display device for a wrench-type opening / closing valve device according to claim 1, wherein the opening / closing display device is formed in a tapered shape in which an outer peripheral side is lower and an inner peripheral side is higher. The display unit,
3. The open / close display device for a wrench-type on-off valve device according to claim 2, wherein the wrench-type on-off valve device protrudes upward from an upper opening of a cylinder cap in a cylinder container to which the wrench-type on-off valve device is attached. 4. The wrench-type opening / closing valve device according to claim 1, wherein the pedestal is provided with a locking portion that is locked to the valve body and fixes the pedestal to the valve body. 5. Open / close display device. An on-off valve is disposed inside the valve body, a valve stem for externally operating the opening and closing of the on-off valve is provided, and a wrench-type on-off valve device in which the valve stem is externally operated with a wrench,
An open / close display device for displaying one of an open state and a closed state of the on-off valve is provided,
The opening / closing display device is
A pedestal attached to the valve body of the valve device;
A plurality of rotating gears provided on the upper part of the pedestal,
A rotating body that is provided on the upper outer periphery of the pedestal and has a rotating body side gear that meshes with the rotation gear;
A display unit that displays one of an open state and a closed state of the on-off valve of the valve device, and a rotation display body that has a display body-side gear that rotates about the rotation center of the valve stem,
The display body side gear is configured with a number of teeth different from the number of teeth of the rotating body side gear,
The rotating body side gear meshing with the rotation gear, the display body side gear meshing with the rotation gear, and the rotation gear, a differential rotation mechanism that differentially rotates the rotating display body with respect to the rotating body. Composed,
It has an opening that rotates integrally with the rotating body and opens a required part of the display body so that the required part can be viewed from the outside, and is covered with the rotating display body, and restricts a part other than the required part from being viewed from the outside. Visibility control body,
A rotatable cover that rotatably covers the entire outside of the visibility control body and that transmits at least the opening of the visibility control body so as to be visible from the outside is provided,
A wrench-type opening / closing valve device in which a central portion of the visual restriction body is fitted with the valve stem, and a hole through which the valve stem can penetrate upward is formed. The wrench-type opening / closing valve device according to claim 5 is attached to an upper end portion of a cylinder container, wherein the cylinder container has a cylinder cap having an upper end opened at an upper portion,
A cylinder container with a valve, wherein at least the transmission cover body and the visual restriction body are formed to have a smaller diameter than the upper opening of the cylinder cap. The display unit,
The cylinder container with a valve according to claim 6, which is formed in a tapered shape in which an outer peripheral side is lower and an inner peripheral side is higher. The cylinder container with a valve according to claim 7, wherein an outer peripheral end of the display portion of the rotary display body projects above the upper opening of the cylinder cap.

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