JP2022076778A - Opening/closing display device for wrench type opening/closing valve device, wrench type opening/closing valve device, and cylinder container with valve - Google Patents

Abstract

To provide an opening/closing display device for a wrench type opening/closing valve device which enables a user to view an opening/closing state of an on-off valve from a side and an obliquely lower side, and to provide a wrench type opening/closing valve device and a cylinder container with a valve.SOLUTION: An opening/closing display device 7 for a wrench type opening/closing valve device 6, in which a spindle 11 in an on-off valve 18 of a valve body 10 is operated at the exterior by a wrench 5, includes: a housing 20 which is fitted on the spindle 11 and rotates with the spindle 11; and a first annular body 50 which is at least partially housed at an inner side of a lower part of the housing 20. Further, the opening/closing display device 7 is formed with: a peristaltic movement mechanism 7M which enables the first annular body 50 to move in a peristaltic manner in a rotation axis (a center axis CL) direction of the housing 20 with the housing 20 and the first annular body 50; and a slide mechanism 7S which enables the first annular body 50 to slide in the rotation axis (the center axis CL) direction of the housing 20 with the first annular body 50 and a base body 60 fixed to the valve body 10.SELECTED DRAWING: Figure 2

Description

The present invention relates to an open / close display device for a wrench-type on-off valve device in which a valve rod in an on-off valve of a valve body is externally operated by a wrench, a wrench-type on-off valve device, and a cylinder container with a valve.

Conventionally, there has been known a wrench-type on-off valve device that can regulate the open / closed state of an on-off valve by externally operating the valve stem with a wrench, and as a result, can regulate the flow rate of a fluid. Further, an open / close display device provided in such a wrench-type on-off valve device and displaying an open / close state of the on-off valve is also known.

Patent Document 1 discloses an open / close display device including a rotation display body that differentially rotates with each other in response to an external operation of the valve stem and a visual recognition restrictor. The open / close display device disclosed in Patent Document 1 is configured such that the visual recognition restricting body regulates the visual recognition other than the required portion with respect to the content indicating the open / closed state of the on-off valve attached to the rotary display body. The feature is that the user of the product can visually check the open / closed state of the on-off valve mainly from above.

By the way, the wrench type open / close valve device provided with such an open / close display device has the following problems. That is, the cylinder container to which the wrench-type on-off valve device is attached is usually used in an upright position. Therefore, when the total height of the cylinder container is high, there is a problem that it is difficult to visually recognize the open / closed state of the on-off valve from above. Further, even when the cylinder container is housed in a narrow space with a low ceiling, there is a problem that it is difficult to visually recognize the open / closed state of the on-off valve from above.

Japanese Unexamined Patent Publication No. 2020-406007

An object of the present invention is to provide an open / close display device for a wrench-type on-off valve device, a wrench-type on-off valve device, and a cylinder container with a valve so that the open / closed state of the on-off valve can be easily visually recognized from the side and diagonally downward.

The present invention is an open / close display device for a wrench-type on-off valve device in which a valve rod in an on-off valve of a valve body is externally operated by a wrench, and is a housing that is externally fitted to the valve rod and rotates together with the valve rod. And an annular body in which at least a part thereof is housed inside the lower portion of the housing, and the housing and the annular body can screw the annular body in the rotation axis direction of the housing. A sliding mechanism is configured to allow the annular body to slide in the direction of the rotation axis of the housing between the annular body and the housing of the valve body or the pedestal body fixed to the valve body. It is characterized by being configured.
The present invention is also a wrench-type on-off valve device provided with the above-mentioned open / close display device.
Further, the present invention is a cylinder container with a valve provided with the above-mentioned wrench type on-off valve device.

According to the present invention, the open / closed state of the on-off valve can be easily visually recognized from the side and diagonally downward.
More specifically, in the open / close display device according to the present invention, an annular body is arranged below the housing forming the outer shape. Then, when the valve rod is externally operated using a wrench, the housing rotates together with the valve rod, and the annular body moves in the vertical direction by the screwing mechanism and the sliding mechanism. That is, the screwing mechanism converts the rotational motion of the housing into a linear motion in the vertical direction of the annular body, and the sliding mechanism slid the annular body in the vertical direction and restricts the rotation in the horizontal direction. Therefore, the rotation of the housing causes the annular body to move in the vertical direction without rotating. Specifically, when the housing rotates to one side, the annular body moves upward without rotating, and when the housing rotates to the other side, the annular body moves downward without rotating. Therefore, in the open / close display device of the present invention, the annular body arranged below the housing is sent to the inside of the housing or to the outside of the housing according to the external operation of the valve stem. Therefore, the user or the like can easily visually recognize the annular body from the side and diagonally downward, and can further recognize the open / closed state of the on-off valve based on the exposure amount of the annular body. In other words, the user or the like can easily visually recognize the open / closed state of the on-off valve from the side and diagonally below.

As an aspect of the present invention, the screwing mechanism includes a female screw portion formed on the housing around the rotation axis of the housing, and a male screw portion formed on the annular body around the rotation axis. The female screw portion and the male screw portion may be screwed freely.

INDUSTRIAL APPLICABILITY According to the present invention, the rotational motion of the housing can be reliably converted into the linear motion of the annular body in the vertical direction, although the configuration is simple. That is, the screwing mechanism is composed of only the female screw portion of the housing and the male screw portion of the annular body, and when the female screw portion rotates, the male screw portion moves in the vertical direction by the feeding action of the screw. Therefore, the rotational motion of the housing can be reliably converted into a linear motion in the vertical direction of the annular body, even though the configuration is simple.

Further, as an aspect of the present invention, the sliding mechanism has a guided portion formed in the annular body parallel to the rotation axis of the housing and parallel to the rotation axis in the housing or the pedestal body. The guided portion may be slidably fitted to the guided portion and the guided portion.

INDUSTRIAL APPLICABILITY According to the present invention, the annular body can be slid vertically and its rotation can be restricted in the left-right direction without fail even though it has a simple structure. That is, the sliding mechanism is composed of only the guided portion of the annular body and the guide portion of the housing or the pedestal, and the guided portion is a simple mechanism that is allowed to move only in the vertical direction along the guide portion. Although it has a simple structure, the annular body can be slid vertically and its rotation can be restricted in the left-right direction.

Further, as an aspect of the present invention, the annular body is a first annular body, and a second annular body in which at least a part thereof is housed is provided inside the first annular body, and the second annular body is the housing or the said. It may be fixed to the pedestal, or the second annular body may be formed by coating or affixing to the housing or the pedestal.

According to the present invention, the open / closed state of the on-off valve can be easily recognized. That is, since the exposure amount of the first annular body and the exposure amount of the second annular body change according to the external operation of the valve rod, the user or the like is based on the difference between the exposure amount of the first annular body and the second annular body. The open / closed state of the on-off valve can be easily recognized.

Further, as an aspect of the present invention, the colors of the first annular body and the second annular body may be different. The above-mentioned color is specified by three attributes of hue, lightness, and saturation. Hue refers to the classification by wavelength, lightness refers to the classification by vividness, and lightness refers to brightness. Refers to the division. If any of hue, lightness, and saturation is different, it can be said that the colors are different.

According to the present invention, the open / closed state of the on-off valve can be immediately recognized. That is, since the color of the first annular body and the color of the second annular body are different, the user or the like can immediately recognize the difference in the exposure amount between the first annular body and the second annular body. Then, the open / closed state of the on-off valve can be immediately recognized based on the difference in the exposure amount between the first annular body and the second annular body.

Further, as an aspect of the present invention, a rotating gear rotatably supported by the pedestal body and a rotary display body housed inside the upper part of the housing and having an internal gear are provided, and the housing rotates. An outer cylindrical body having a visual control body that regulates visual recognition other than the required portion for the content indicating the open / closed state of the on-off valve attached to the display body, and an internal gear having a different number of teeth from the internal gear of the rotary display body. The differential rotation mechanism is composed of the internal gear of the outer cylindrical body that meshes with the rotary gear, the internal gear of the rotary display body that meshes with the rotary gear, and the rotary gear. May be done.

According to the present invention, the open / closed state of the on-off valve can be clearly recognized. That is, since only the required portion of the content indicating the open / closed state of the on-off valve attached to the rotary display body can be visually recognized, the user or the like can clearly recognize the content related to the open / closed state. Then, the open / closed state of the on-off valve can be clearly recognized based on the contents related to the open / closed state.

In addition, the configuration using the above-mentioned screwing mechanism and sliding mechanism and the configuration using the differential rotation mechanism operate independently with different configurations. Therefore, by adding a configuration using a differential rotation mechanism, it is possible to accurately indicate the open / closed state of the on-off valve. In other words, it is possible to achieve both a configuration in which the amount of exposure of the annular body changes according to an external operation of the valve stem and a configuration in which only the required part of the content indicating the open / closed state of the on-off valve attached to the rotary display body can be visually observed. Therefore, when the contents regarding the open / closed state of the on-off valve 18 according to each configuration are the same, it is possible to accurately indicate the open / closed state of the on-off valve 18 to the user or the like.

Further, as an aspect of the present invention, a tapered upper plate portion whose inner peripheral side protrudes upward in the rotary display body is provided with a content indicating the open / closed state of the on-off valve, and the same tapered upper wall in the visual control body. The contents may be visible through an opening hole provided in the portion.

According to the present invention, the open / closed state of the on-off valve can be easily visually recognized from above and diagonally above. That is, the content indicating the open / closed state of the on-off valve attached to the tapered upper plate portion whose inner peripheral side protrudes upward can be visually recognized through the opening hole provided in the tapered upper wall portion as well. Etc. can visually check the open / closed state of the on-off valve from above and diagonally above.

Further, as an embodiment of the present invention, there is also a cylinder container with a valve having a cylinder cap provided with an opening hole at the upper part for allowing the valve rod to be operated externally and an opening window at the side for making the annular body visible. good.

According to the present invention, the valve rod can be externally operated from the opening hole with the cylinder cap that protects the wrench-type on-off valve device attached. In addition, the open / closed state of the on-off valve can be easily visually recognized from the opening window. That is, since the annular body whose exposure amount changes according to the external operation of the valve stem can be visually recognized through the opening window provided on the side of the cylinder cap, the user or the like can check the open / closed state of the on-off valve by opening the cylinder cap. It can be easily seen from the window.

INDUSTRIAL APPLICABILITY According to the present invention, it is possible to provide an open / close display device for a wrench-type on-off valve device, a wrench-type on-off valve device, and a cylinder container with a valve so that the open / closed state of the on-off valve can be easily visually recognized from the side and diagonally downward.

Sectional drawing of the wrench type open / close valve device and its open / close display device. An enlarged cross-sectional view of a wrench-type on-off valve device and its open / close display device. Exploded view of open / close display device. Explanatory drawing of operation mode when a valve stem is rotated to one side. Explanatory drawing of operation mode when a valve stem is rotated to the other side. An explanatory view of a display mode when the on-off valve is in a state close to a fully closed state. An explanatory view of a display mode when the on-off valve is in a state close to a fully open state.

An embodiment of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a cross-sectional view of a wrench-type open / close valve device and its open / close display device, FIG. 2 is an enlarged cross-sectional view of the wrench-type open / close valve device and its open / close display device, and FIG. 3 shows an exploded view of the open / close display device. ing.

Further, FIG. 4 is an explanatory diagram of an operation mode when the valve rod is rotated to one side, FIG. 5 is an explanatory diagram of an operation mode when the valve rod is rotated to the other side, and FIG. 6 is a fully closed opening / closing valve. FIG. 7 is an explanatory diagram of a display mode when the state is close to the state, and FIG. 7 is an explanatory diagram of the display mode when the on-off valve is in a state close to the fully open state. 6 (a) and 7 (a) are side views of the open / close display device, and FIGS. 6 (b) and 7 (b) are top views of the open / close display device.

As shown in FIG. 1, a neck portion 2 is integrally formed at the upper end of the cylinder container 1. A male screw portion 2a is provided on the outer periphery of the neck portion 2, and a cylinder cap 4 is screwed into the male screw portion 2a. The cylinder cap 4 is a so-called fixed cap that can open and close the wrench-type open / close valve device 6 while being mounted on the cylinder container 1. An opening hole 4a for accommodating the opening / closing display device 7 described later is formed in the upper part of the cylinder cap 4, and an opening window for making the first annular body 50 described later visible from the outside on the side portion of the cylinder cap 4. 4b is formed.

Further, a female screw portion 2b is provided in the center of the neck portion 2, and a wrench type on-off valve device 6 is screwed into the female screw portion 2b. In this embodiment, the wrench type on-off valve device 6 (hereinafter, simply abbreviated as the valve device 6) is a valve device for a container, but in gas piping or the like, it can be a valve device for piping.

The valve device 6 includes a housing 8 and a gland nut 9. A female screw portion 8a is provided at the upper end of the housing 8, and a gland nut 9 is screwed into the female screw portion 8a. In this way, the valve body 10 is composed of the housing 8 and the gland nut 9.

Further, the housing 8 is provided with a hole portion 8b penetrating in the vertical direction, and the gland nut 9 is also provided with a hole portion 9b penetrating in the vertical direction. A spindle 11 which is a valve rod is inserted inside these holes 8b and 9b. A sealing member 9d such as a 0 ring is interposed between the gland nut 9 and the spindle 11.

As shown in FIG. 2, the spindle 11 is formed with an upper prism portion 11a, an upper column portion 11b, a flange portion 11c, and a lower prism portion 11d from the upper end portion to the lower end portion. Then, the lower prism portion 11d of the spindle 11 is inserted into the intermediate conductor 12 housed in the hole portion 8b of the housing 8.

The intermediate conductor 12 is screwed into the female screw portion 8c provided in the hole portion 8b of the housing 8. Therefore, the intermediate conductor 12 is screwed in the vertical direction (movement due to the feeding action of the screw) by the rotation of the spindle 11. Specifically, when the spindle 11 rotates to one side, the intermediate conductor 12 is screwed downward, and when the spindle 11 rotates to the other side, the intermediate conductor 12 is screwed upward. The closing member 13 is fitted in the recess 12a formed at the lower end of the intermediate conductor 12. The closing member 13 is a cylindrical elastic member, and closes the opening valve seat 8d of the on-off valve 18, which will be described later, when the intermediate conductor 12 is in the lower position.

Further, the housing 8 has an inlet flow path 8e as a primary side flow path extending downward from the bottom surface of the hole portion 8b and an outlet flow path 8f as a secondary side flow path orthogonal to the lower end portion of the hole portion 8b. And are formed. Further, a branch path 8g communicates with the inlet flow path 8e in the middle in the vertical direction. The end portion of the branch path 8g is connected to the hole portion 8h provided in the housing 8, and the safety valve 15 is screwed into the housing 8 via the gasket 14 so as to close the hole portion 8h. The safety valve 15 has a rupture disc (not shown), a pressing plug 16, and a fusible plug 17.

By the way, in the valve main body 10, the spindle 11, the intermediate conductor 12, and the closing member 13 constitute an on-off valve 18 that closes or opens the above-mentioned opening valve seat 8d. The spindle 11 constituting the on-off valve 18 is externally operated by a wrench 5 (socket wrench having a square tube-shaped hole: see FIG. 1). When the spindle 11 is rotated to one side by using the wrench 5, the intermediate conductor 12 is screwed and the closing member 13 is raised, so that the opening valve seat 8d is opened. As a result, the fluid stored in the cylinder container 1 passes through the inlet flow path 8e and flows to the outlet flow path 8f.

An open / close display device 7 is provided on the upper portion of the valve device 6. As shown in FIGS. 2 and 3, the open / close display device 7 includes a housing 20 that is externally fitted to the spindle 11 and rotates together with the spindle 11, and a first annular body 50 that can be accommodated inside the lower portion of the housing 20. A pedestal 60 fixed to the gland nut 9 of the valve body 10 and a second annular body 70 that can be accommodated inside the first annular body 50 are provided. The housing 20 is composed of a visibility restricting body 30 and an outer cylindrical body 40.

The visual control body 30 includes a circular wall portion 31 provided with a square hole 31a fitted to the upper prism portion 11a of the spindle 11, an inner wall portion 32 extending upward from the outer end of the circular wall portion 31, and an inner wall portion 32. It has an upper wall portion 33 extending diagonally downward from the upper end of the upper wall portion 33, and an outer wall portion 34 extending downward from the outer end of the upper wall portion 33. An opening hole 35 is formed in a part of the upper wall portion 33. An uneven shape 36 is formed at the lower end of the outer wall portion 34.

The outer cylindrical body 40 has an inner fitting portion 41 that is internally fitted to the outer wall portion 34 of the visibility restriction body 30, and an outer cylinder portion 42 that expands the outer end of the inner fitting portion 41 and extends downward. An internal gear 40D is formed on the inner peripheral surface of the inner fitting portion 41. Further, a female screw portion 40M is formed on the inner peripheral surface of the outer cylinder portion 42. An uneven shape 46 is formed on the outer peripheral surface of the inner fitting portion 41 and at the upper end of the outer cylinder portion 42. Therefore, the outer cylindrical body 40 can be integrated with the visibility restricting body 30 by engaging the uneven shape 46 with the uneven shape 36 of the visibility restricting body 30.

The first annular body 50 has an outer ring portion 51 housed in the outer cylinder portion 42 of the outer cylindrical body 40, and an inner ring portion 52 whose diameter is reduced from the middle portion in the vertical direction to the lower side of the outer ring portion 51. A male screw portion 50M is formed on the outer peripheral surface of the outer ring portion 51. Further, a guided portion 50S is formed in a part of the inner ring portion 52 in the circumferential direction. The guided portions 50S are formed at three locations where the phase angles are equal to each other at intervals of 120 °.

The pedestal body 60 has a cylindrical portion 61 provided with a hexagonal hole 61a to be fitted with the gland nut 9 of the valve body 10. A shaft hole portion 62 through which the shaft portion 82 of the rotation gear 80, which will be described later, is inserted is formed on the upper end surface of the cylindrical portion 61. Further, a guide portion 60S is formed on the lower end surface of the cylindrical portion 61. The guide portions 60S are formed at three locations where the phase angles are equal to each other at intervals of 120 °. Therefore, the pedestal body 60 can be combined with the first annular body 50 by inserting the guide portion 60S through the guided portion 50S of the first annular body 50.

The second annular body 70 has an annular shape that is fitted with the housing 8 of the valve body 10. The second annular body 70 is fixed to the housing 8 so as to be adjacent to the pedestal body 60. However, the second annular body 70 may be fixed to the pedestal body 60 instead of the housing 8. Further, the second annular body 70 may be a paint layer formed by being applied to the housing 8 or the pedestal body 60. Alternatively, it may be a seal layer formed by being attached.

Further, the open / close display device 7 has a feature that the colors of the first annular body 50 and the second annular body 70 are different. In the open / close display device 7, the first annular body 50 is green and the second annular body 70 is red. For these colors, it is preferable to adopt two opposing colors in a so-called hue circle in which hues are arranged in a ring shape. The two opposite colors on the color wheel are called complementary colors or opposite colors, and have the effect of making each other's colors stand out. In general, in a valve device, red represents the valve closed side and green represents the valve open side.

Further, in the open / close display device 7, a screwing mechanism 7M (see FIG. 2) is configured by the housing 20 and the first annular body 50. The screwing mechanism 7M enables the first annular body 50 to be screwed in the direction of the rotation axis of the housing 20. Here, the rotation axis direction of the housing 20 is synonymous with the rotation axis direction of the spindle 11, in other words, the direction parallel to the central axis CL of the housing 20 or the spindle 11.

Specifically, the screwing mechanism 7M will be described above on the inner peripheral surface of the housing 20 (specifically, the inner peripheral surface of the outer cylinder portion 42) centering on the rotation axis (central axis CL) of the housing 20. A female screw portion 40M is formed. The female screw portion 40M is a so-called trapezoidal screw having a trapezoidal cross-sectional shape of the screw thread. On the other hand, on the outer peripheral surface of the first annular body 50 (specifically, the outer peripheral surface of the outer ring portion 51), the above-mentioned male screw portion 50M is formed around the rotation axis (central axis CL) of the housing 20. There is. The male screw portion 50M is also a so-called trapezoidal screw having a trapezoidal cross-sectional shape of the screw thread. The female screw portion 40M and the male screw portion 50M are screwed freely. The female screw portion 40M and the male screw portion 50M may be triangular screws or square screws. Alternatively, it may be a ball screw.

Further, in the open / close display device 7, a sliding mechanism 7S (see FIG. 2) is configured by the first annular body 50 and the pedestal body 60. The sliding mechanism 7S makes the first annular body 50 slidable in the rotation axis direction of the housing 20. Again, the rotation axis direction of the housing 20 is synonymous with the rotation axis direction of the spindle 11, in other words, the direction parallel to the central axis CL of the housing 20 or the spindle 11.

Specifically, the sliding mechanism 7S will be described on the inner peripheral surface of the first annular body 50 (specifically, a part of the inner ring portion 52 in the circumferential direction) on the rotation axis (central axis CL) of the housing 20. On the other hand, the above-mentioned guided portion 50S is formed in parallel. The guided portion 50S is a portion recessed in a cross-sectional arc shape from the inner peripheral surface of the inner ring portion 52 to the inner peripheral surface of the outer ring portion 51. On the other hand, the above-mentioned guide portion 60S is formed on the lower end surface of the pedestal body 60 (specifically, the lower peripheral surface of the cylindrical portion 61) in parallel with the rotation axis (central axis CL) of the housing 20. .. The guide portion 60S is a protruding portion having an arcuate cross section extending downward from the lower end surface of the cylindrical portion 61 to a predetermined length. Then, the guided portion 50S and the guided portion 60S are slidably fitted. A portion protruding in an arc shape in cross section may be provided on the outer peripheral surface of the pedestal body 60 (specifically, the outer peripheral surface of the columnar portion 61), and this may be used as the guide portion 60S. Alternatively, a portion protruding in an arc shape in cross section may be provided on the outer peripheral surface of the housing 8 and this may be used as the guide portion 60S.

With such a configuration, as shown in FIG. 4, when the spindle 11 is rotated in one direction using the wrench 5 (clockwise when viewed from above: see arrow A), the housing 20 also rotates in one direction together with the spindle 11. (See arrow B). Then, the first annular body 50 moves upward by the screwing mechanism 7M and the sliding mechanism 7S and is gradually sent to the inside of the housing 20 (see arrow C), so that the green region formed by the first annular body 50 is formed. It will decrease and the red area due to the second annular body 70 will increase. Conversely, as shown in FIG. 5, when the spindle 11 is rotated to the other side using the wrench 5 (counterclockwise when viewed from above: see arrow A), the housing 20 also rotates to the other side together with the spindle 11 (arrow). See B). Then, the first annular body 50 moves downward by the screwing mechanism 7M and the sliding mechanism 7S and is gradually sent out to the outside of the housing 20 (see arrow C), so that the green region formed by the first annular body 50 is formed. It will increase and the red area due to the second ring 70 will decrease.

Therefore, the user or the like can immediately recognize the difference in the amount of exposure between the first annular body 50 and the second annular body 70. Then, the open / closed state of the on-off valve 18 can be immediately recognized based on the difference in the exposure amount between the first annular body 50 and the second annular body 70. That is, as shown in FIG. 6A, if the green region formed by the first annular body 50 and the red region formed by the second annular body 70 are compared and the green region is considerably smaller, the first annular body 50 is exposed. It can be immediately recognized that the quantity X and the exposure quantity Y of the second annular body 70 satisfy the relation of the mathematical formula: X << Y. Then, based on this relationship, it can be immediately recognized that the on-off valve 18 is in a fully closed state or a state close to a fully closed state. Further, as shown in FIG. 7A, if the green region formed by the first annular body 50 and the red region formed by the second annular body 70 are compared and the green region is considerably larger, the first annular body 50 is exposed. It can be immediately recognized that the quantity X and the exposure quantity Y of the second annular body 70 satisfy the relationship of the mathematical formula: X >> Y. Then, based on this relationship, it can be immediately recognized that the on-off valve 18 is in a fully open state or a state close to a fully open state.

In addition, as shown in FIGS. 2 and 3, the open / close display device 7 includes a rotation gear 80 rotatably supported by the pedestal body 60 and the inside of the upper part of the housing 20 (specifically, the inside of the visibility restricting body 30). ), It is provided with a rotary display body 90 having an internal gear 90D. The internal gear 90D of the rotary display body 90 and the internal gear 40D of the outer cylindrical body 40 described above have different numbers of teeth from each other.

The rotation gear 80 has a gear portion 81 having a tooth body formed on the outer peripheral surface thereof, and a shaft portion 82 extending downward from the center of the gear portion 81. The rotation gear 80 is rotatably supported by the shaft portion 82 being inserted into the shaft hole portion 62 of the pedestal body 60. The rotation gears 80 are arranged at three positions where the phase angles are equal to each other at intervals of 120 °.

The rotation display body 90 has a side plate portion 91 mounted on the inner fitting portion 41 of the outer cylindrical body 40, and an upper plate portion 92 extending diagonally upward from the upper end of the side plate portion 91. An internal gear 90D is formed on the inner peripheral surface of the side plate portion 91. Further, on the upper surface of the upper plate portion 92, a content indicating the open / closed state of the on-off valve 18 is attached. In the open / close display device 7, a closed display unit 92a in which the characters “closed” appear on a red background and an open display unit 92b in which the characters “open” appear on a green background are attached (FIG. 6). And see Figure 7).

Further, the open / close display device 7 is differentially provided by the internal gear 40D of the outer cylindrical body 40 that meshes with the rotary gear 80, the internal gear 90D of the rotary display body 90 that meshes with the rotary gear 80, and the rotary gear 80. A rotation mechanism 7D (see FIG. 2) is configured. The differential rotation mechanism 7D enables the housing 20 and the rotation display body 90 to be differentially rotated in response to an external operation of the spindle 11. In other words, the visual control body 30 and the rotation display body 90 constituting the housing 20 can be differentially rotated.

Specifically, the differential rotation mechanism 7D will be described specifically on the inner peripheral surface of the outer cylindrical body 40 (specifically, the inner peripheral surface of the inner fitting portion 41) centered on the rotation axis (central axis CL) of the housing 20. , The above-mentioned internal gear 40D is formed. On the other hand, on the inner peripheral surface of the rotation display body 90 (specifically, the inner peripheral surface of the side plate portion 91), the above-mentioned internal gear 90D is formed around the rotation axis (central axis CL) of the housing 20. There is. The internal gear 40D, the internal gear 90D, and the rotation gear 80 are so-called spur gears having linear tooth lines. Then, the internal gear 40D of the outer cylindrical body 40 and the rotary gear 80 are meshed, and the internal gear 90D of the rotary display body 90 and the rotary gear 80 are meshed.

By having the differential rotation mechanism 7D, when the housing 20 rotates, the rotation display body 90 rotates faster than the rotation of the housing 20 although it is in the same direction. That is, the differential rotation mechanism 7D can accelerate the rotational movement of the housing 20 and convert it into the rotational movement of the rotary display body 90 (see the arrows E in FIGS. 4 and 5).

With such a configuration, as shown in FIG. 4, when the spindle 11 is rotated in one direction using the wrench 5 (clockwise when viewed from above: see arrow A), the housing 20 also rotates in one direction together with the spindle 11. (See arrow B). Then, the rotary gear 80 is rotated by the internal gear 40D of the outer cylindrical body 40 constituting the housing 20 (see arrow D), and the rotational power is transmitted to the internal gear 90D of the rotary display body 90 via the rotary gear 80. Will be done. Therefore, the rotation display body 90 is accelerated and rotates in the same direction as the housing 20 (see arrow E). Conversely, as shown in FIG. 5, when the spindle 11 is rotated to the other side using the wrench 5 (counterclockwise when viewed from above: see arrow A), the housing 20 also rotates to the other side together with the spindle 11 (arrow). See B). Then, the rotary gear 80 is rotated by the internal gear 40D of the outer cylindrical body 40 constituting the housing 20 (see arrow D), and the rotational power is transmitted to the internal gear 90D of the rotary display body 90 via the rotary gear 80. Will be done. Therefore, the rotation display body 90 is accelerated and rotates in the same direction as the housing 20 (see arrow E).

Therefore, the user or the like can clearly recognize the open / closed state of the on-off valve 18 based on the contents that can be visually recognized from the opening hole 35 of the visibility restricting body 30. That is, as shown in FIG. 6B, when the above-mentioned closed display portion 92a appears in the opening hole 35 of the visibility restriction body 30, the on-off valve 18 is in a fully closed state or a state close to a fully closed state. Can be clearly recognized. Further, as shown in FIG. 7B, when the above-mentioned open display portion 92b appears in the opening hole 35 of the visibility restriction body 30, it is clearly stated that the on-off valve 18 is in a fully open state or a state close to a fully open state. Can be recognized.

In addition, as shown in FIG. 6 (a), the green region formed by the first annular body 50 and the red region formed by the second annular body 70 are compared with each other, and the green region is considerably smaller, and FIG. 6 (b) shows. As shown, when the above-mentioned closed display portion 92a appears in the opening hole 35 of the visual restriction body 30, it is said that it is accurate to clearly indicate that the on-off valve 18 is in a fully closed state or a state close to a fully closed state. A sense of trust can be given. Further, as shown in FIG. 7 (a), the green region formed by the first annular body 50 and the red region formed by the second annular body 70 are compared with each other, and the green region is considerably larger and is shown in FIG. 7 (b). As described above, when the above-mentioned open display portion 92b appears in the opening hole 35 of the visual control body 30, it is reliable that the on-off valve 18 is in a fully open state or a state close to a fully open state. Can be granted.

Further, in the open / close display device 7, the tapered upper plate portion 92 having the inner peripheral side protruding from the rotary display body 90 is provided with a content indicating the open / closed state of the on-off valve 18, and the open / close display device 30 has the same tapered shape. It has a feature that its contents can be visually recognized through an opening hole 35 provided in the upper wall portion 33.

Therefore, the user or the like can easily visually recognize the open / closed state of the on-off valve 18 appearing in the opening hole 35 from above and diagonally above. That is, as shown in FIGS. 6 (a) and 6 (b) and 7 (a) and (b), the above-mentioned closed display portion 92a or open display portion 92b is attached to the tapered upper plate portion 92 whose inner peripheral side protrudes. The closed display portion 92a or the open display portion 92b can be visually recognized through the opening hole 35 also provided in the tapered upper wall portion 33, so that the user or the like can see the open / closed state of the on-off valve 18 appearing in the opening hole 35. It can be easily visually recognized from above and diagonally above.

Finally, the open / close display device 7 includes a transparent cover 100. The transparent cover 100 is outside the inner lid portion 101 fitted inside the inner wall portion 32 of the visibility restricting body 30, the upper lid portion 102 covering the upper wall portion 33 of the visibility restricting body 30, and the outer wall portion 34 of the visibility restricting body 30. It has an outer lid portion 103 to be fitted. With such a transparent cover 100, it is possible to prevent foreign matter and the like from entering through the opening hole 35 of the visibility restricting body 30. Of course, the open / closed state of the on-off valve 18 appearing in the opening hole 35 can be read through the transparent cover 100.

As described above, the open / close display device 7 for the wrench-type on-off valve device 6 in which the spindle 11 of the on-off valve 18 of the valve body 10 is externally operated by the wrench 5 is externally fitted to the spindle 11 and rotates together with the spindle 11. A housing 20 and a first annular body 50 in which at least a part thereof is housed inside the lower part of the housing 20 are provided. Further, the open / close display device 7 has a screwing mechanism 7M that allows the housing 20 and the first annular body 50 to screw the first annular body 50 in the direction of the rotation axis (central axis CL) of the housing 20. A sliding mechanism 7S that is configured and allows the first annular body 50 to be slidable in the direction of the rotation axis (central axis CL) of the housing 20 by the first annular body 50 and the pedestal body 60 fixed to the valve body 10. Is configured.

According to such an open / close display device 7, the open / closed state of the on-off valve 18 can be easily visually recognized from the side and diagonally downward.
More specifically, in the open / close display device 7 according to the present invention, the first annular body 50 is arranged below the housing 20 forming the outer shape. Then, when the spindle 11 is externally operated using the wrench 5, the housing 20 rotates together with the spindle 11, and the first annular body 50 moves in the vertical direction by the screwing mechanism 7M and the sliding mechanism 7S. That is, the screwing mechanism 7M converts the rotational motion of the housing 20 into a linear motion in the vertical direction of the first annular body 50, and the sliding mechanism 7S slides the first annular body 50 in the vertical direction. Since it is movable and its rotation is restricted in the left-right direction, the rotation of the housing 20 causes the first annular body 50 to move in either the vertical direction without rotating. Specifically, when the housing 20 rotates clockwise when viewed from above, the first annular body 50 moves upward without rotating, and when the housing 20 rotates counterclockwise when viewed from above, the first ring body 50 moves upward. The monocyclic body 50 will move downward without rotating. Therefore, in the open / close display device 7 of the present invention, the first annular body 50 arranged below the housing 20 is sent inside the housing 20 or outside the housing 20 in response to an external operation of the spindle 11. It is sent out to. Therefore, the user or the like can easily visually recognize the first annular body 50 from the side and diagonally downward, and can further recognize the open / closed state of the on-off valve 18 based on the exposure amount of the first annular body 50. In other words, the user or the like can easily visually recognize the open / closed state of the on-off valve 18 from the side and diagonally below.

Further, the screwing mechanism 7M of the open / close display device 7 has a female screw portion 40M formed on the housing 20 around the rotation axis (central axis CL) of the housing 20, and a rotation axis (similarly to the first annular body 50). It is composed of a male screw portion 50M formed around the central axis CL). The female screw portion 40M and the male screw portion 50M are screwed freely.

According to such an open / close display device 7, the rotational motion of the housing 20 can be reliably converted into a linear motion in the vertical direction of the first annular body 50 with a simple configuration. That is, the screwing mechanism 7M is composed of only the female screw portion 40M of the housing 20 and the male screw portion 50M of the first annular body 50, and when the female screw portion 40M rotates, the male screw portion 50M acts to feed the screw. Since it is a simple mechanism that moves in the vertical direction, the rotational motion of the housing 20 can be reliably converted into a linear motion in the vertical direction of the first annular body 50 with a simple configuration.

Further, the sliding mechanism 7S of the open / close display device 7 also rotates on the guided portion 50S formed in parallel to the rotation axis (central axis CL) of the housing 20 on the first annular body 50 and on the pedestal body 60. It is composed of a guide portion 60S formed in parallel with the axis (central axis CL). Then, the guided portion 50S and the guided portion 60S are slidably fitted.

According to such an open / close display device 7, the first annular body 50 can be reliably slid in the vertical direction and the rotation can be restricted in the horizontal direction with a simple structure. That is, the sliding mechanism 7S is composed of only the guided portion 50S of the first annular body 50 and the guide portion 60S of the pedestal body 60, and the guided portion 50S is allowed to move only in the vertical direction along the guide portion 60S. Since it is a simple mechanism, the first annular body 50 can be slidably slid vertically and its rotation can be restricted in the left-right direction without fail even though it has a simple structure.

Further, the open / close display device 7 is provided with a second annular body 70 in which at least a part thereof is housed inside the first annular body 50.

According to such an open / close display device 7, the open / closed state of the on-off valve 18 can be easily recognized. That is, since the exposure amount of the first annular body 50 and the exposure amount of the second annular body 70 change according to the external operation of the spindle 11, the user or the like can expose the first annular body 50 and the second annular body 70. The open / closed state of the on-off valve 18 can be easily recognized based on the difference between the two.

Further, in the open / close display device 7, the first annular body 50 is green and the second annular body 70 is red.

According to such an open / close display device 7, the open / closed state of the on-off valve 18 can be immediately recognized. That is, since the color of the first annular body 50 and the color of the second annular body 70 are different, the user or the like can immediately recognize the difference in the exposure amount between the first annular body 50 and the second annular body 70. Then, the open / closed state of the on-off valve 18 can be immediately recognized based on the difference in the exposure amount between the first annular body 50 and the second annular body 70.

Further, the open / close display device 7 includes a rotation gear 80 rotatably supported by the pedestal body 60, and a rotation display body 90 housed inside the upper part of the housing 20 and having an internal gear 90D. .. Further, a visual control body 30 that regulates the visual recognition of the contents indicating the open / closed state of the on-off valve 18 attached to the rotary display body 90 other than the required portion, the internal gear 90D of the rotary display body 90, and the number of teeth. Is composed of an outer cylindrical body 40 having different internal gears 40D. A differential rotation mechanism 7D is configured by the internal gear 40D of the outer cylindrical body 40 that meshes with the rotary gear 80, the internal gear 90D of the rotary display body 90 that meshes with the rotary gear 80, and the rotary gear 80. There is.

According to such an open / close display device 7, the open / closed state of the on-off valve 18 can be clearly recognized. That is, since only the required portion of the content indicating the open / closed state of the on-off valve 18 attached to the rotary display body 90 can be visually recognized, the user or the like can clearly recognize the content related to the open / closed state. Then, the open / closed state of the on-off valve 18 can be clearly recognized based on the contents related to the open / closed state.

In addition, the configuration using the above-mentioned screw mechanism 7M and sliding mechanism 7S and the configuration using the differential rotation mechanism 7D operate independently with different configurations. Therefore, by adding a configuration using the differential rotation mechanism 7D, the open / closed state of the on-off valve 18 can be accurately shown. That is, the configuration in which the exposure amount of the first annular body 50 changes according to the external operation of the spindle 11 and the configuration in which only the required portion of the content indicating the open / closed state of the on-off valve 18 attached to the rotary display body 90 can be visually observed. By achieving both, and when the contents regarding the open / closed state of the on-off valve 18 according to each configuration are the same, it is possible to accurately indicate the open / closed state of the on-off valve 18 to the user or the like.

Further, in the open / close display device 7, the tapered upper plate portion 92 whose inner peripheral side protrudes upward in the rotary display body 90 is provided with a content indicating the open / closed state of the on-off valve 18, and is also tapered in the visual control body 30. The contents can be visually recognized through the opening hole 35 provided in the upper wall portion 33.

According to such an open / close display device 7, the open / closed state of the on-off valve 18 can be easily visually recognized from above and diagonally above. That is, the content indicating the open / closed state of the on-off valve 18 attached to the tapered upper plate portion 92 whose inner peripheral side protrudes upward can be visually recognized through the opening hole 35 also provided in the tapered upper wall portion 33. Therefore, the user or the like can visually check the open / closed state of the on-off valve 18 from above and diagonally above.

Further, the wrench-type on-off valve device 6 in which the spindle 11 of the on-off valve 18 of the valve body 10 is externally operated by the wrench 5 is provided with an on-off display device 7 for displaying the open / closed state of the on-off valve 18. The open / close display device 7 includes a housing 20 that is externally fitted to the spindle 11 and rotates together with the spindle 11, and a first annular body 50 in which at least a part thereof is housed inside the lower part of the housing 20. Further, the housing 20 and the first annular body 50 form a screwing mechanism 7M that allows the first annular body 50 to be screwed in the direction of the rotation axis (central axis CL) of the housing 20. The sliding mechanism 7S that allows the first annular body 50 to slide in the rotation axis (central axis CL) direction of the housing 20 is configured by the pedestal body 60 fixed to the valve body 10.

According to such a wrench type open / close valve device 6, the same effect as that of the above-mentioned open / close display device 7 can be obtained. That is, the user or the like can easily visually recognize the first annular body 50 from the side and diagonally downward, and can further recognize the open / closed state of the on-off valve 18 based on the exposure amount of the first annular body 50. In other words, the user or the like can easily visually recognize the open / closed state of the on-off valve 18 from the side and diagonally below.

Further, it is a cylinder container 1 with a valve provided with the above-mentioned wrench type on-off valve device 6. The cylinder container 1 with a valve described above is a hollow body that can be sealed and is used for storing and transporting a gas or liquid as a fluid, and may be used for industrial purposes, medical purposes, fuels, and the like.

According to such a cylinder container 1 with a valve, the same effect as that of the above-mentioned wrench type on-off valve device 6 can be obtained. That is, the user or the like can easily visually recognize the first annular body 50 from the side and diagonally downward, and can further recognize the open / closed state of the on-off valve 18 based on the exposure amount of the first annular body 50. In other words, the user or the like can easily visually recognize the open / closed state of the on-off valve 18 from the side and diagonally below.

Further, the above-mentioned cylinder container with a valve has a cylinder cap 4 provided with an opening hole 4a for externally manipulating the spindle 11 at the upper portion and an opening window 4b for visually recognizing the first annular body 50 at the side portion. It is 1.

According to such a cylinder container 1 with a valve, the spindle 11 can be externally operated from the opening hole 4a with the cylinder cap 4 for protecting the wrench-type on-off valve device 6 attached. Further, the open / closed state of the on-off valve 18 can be easily visually recognized from the opening window 4b. That is, since the first annular body 50 whose exposure amount changes according to the external operation of the spindle 11 can be visually recognized through the opening window 4b provided on the side of the cylinder cap 4, the user or the like can open / close the on-off valve 18. The state can be easily visually recognized from the opening window 4b of the cylinder cap 4.

In the correspondence between the configuration of the present invention and the above-described embodiment, the cylinder container with a valve of the present invention corresponds to the cylinder container 1.
Similarly below
The wrench type open / close valve device corresponds to the valve device 6 and
The open / close display device corresponds to the open / close display device 7.
The housing corresponds to housing 8
The valve body corresponds to the valve body 10 and
The housing corresponds to the housing 20 and
The visibility control body corresponds to the visibility control body 30 and
The outer cylinder corresponds to the outer cylinder 40,
The first ring corresponds to the first ring 50,
The pedestal body corresponds to the pedestal body 60,
The second ring corresponds to the second ring 70,
The rotation gear corresponds to the rotation gear 80,
The rotation display body corresponds to the rotation display body 90,
The screwing mechanism corresponds to the screwing mechanism 7M,
The female thread part corresponds to the female thread part 40M,
The male screw part corresponds to the male screw part 50M,
The sliding mechanism corresponds to the sliding mechanism 7S,
The guided part corresponds to the guided part 50S,
The guide unit corresponds to the guide unit 60S,
The differential rotation mechanism corresponds to the differential rotation mechanism 7D,
The internal gear of the outer cylinder corresponds to the internal gear 40D,
Although the internal gear of the rotary display body corresponds to the internal gear 90D, the present invention is not limited to the configuration of the above-described embodiment, and many embodiments can be obtained.

For example, when the spindle 11 is rotated clockwise when viewed from above, the first annular body 50 moves downward, and when the spindle 11 is rotated counterclockwise when viewed from above, the first annular body 50 moves upward. You may move. This can be realized by using the female screw portion 40M of the housing 20 and the male screw portion 50M of the first annular body as reverse threads. Further, the colors of the first annular body 50 and the second annular body 70 may not be limited to green and red. For example, it may be another color having a different hue, or it may be a color having the same hue but different lightness or saturation.

Even with such a configuration, the user or the like can immediately recognize the difference in the amount of exposure between the first annular body 50 and the second annular body 70. Then, the open / closed state of the on-off valve 18 can be recognized based on the difference in the exposure amount between the first annular body 50 and the second annular body 70.

Further, the configuration may not include the second annular body 70.
Even with such a configuration, the user or the like can recognize the open / closed state of the on-off valve 18 based on the exposure amount of the first annular body 50.

In addition, the configuration may not include the visual restriction body 30, the rotation display body 90, and the differential rotation mechanism 7D.

Even with such a configuration, the user or the like can recognize the open / closed state of the on-off valve 18 by the configuration using the above-mentioned screwing mechanism 7M and sliding mechanism 7S.

1 ... Cylinder container 1
6 ... Valve device 7 ... Open / close display device 8 ... Housing 10 ... Valve body 20 ... Housing 30 ... Visual control body 40 ... Outer cylindrical body 50 ... First annular body 60 ... Pedestal body 70 ... Second annular body 80 ... Rotating gear 90 ... Rotation display 7M ... Screw mechanism 40M ... Female screw part 50M ... Male screw part 7S ... Sliding mechanism 50S ... Guided part 60S ... Guide part 7D ... Differential rotation mechanism 40D ... Internal gear 90D ... Internal gear

Claims (10)

An open / close display device for a wrench-type on-off valve device in which the valve stem of the on-off valve of the valve body is externally operated by a wrench.
A housing that is externally fitted to the valve stem and rotates together with the valve stem,
An annulus containing at least a part thereof is provided inside the lower part of the housing.
A screwing mechanism that allows the annular body to be screwed in the rotation axis direction of the housing is configured by the housing and the annular body.
A wrench-type open / close valve having a sliding mechanism that allows the annular body to slide in the direction of the rotation axis of the housing with the annular body and the housing of the valve body or the pedestal body fixed to the valve body. Open / close display device for the device. The screwing mechanism is composed of a female screw portion formed on the housing around the rotation axis of the housing and a male screw portion formed on the annular body around the rotation axis.
The open / close display device for a wrench-type open / close valve device according to claim 1, wherein the female screw portion and the male screw portion are screwed freely. The sliding mechanism includes a guided portion formed in the annular body in parallel with the rotation axis of the housing, and a guide portion formed in the housing or the pedestal in parallel with the rotation axis. Consists of
The open / close display device for a wrench-type open / close valve device according to claim 1 or 2, wherein the guided portion and the guide portion are slidably fitted. The annular body is defined as the first annular body.
A second annular body is provided inside the first annular body, wherein the second annular body is fixed to the housing or the pedestal, or the second annular body is the housing or the said. The open / close display device for a wrench-type open / close valve device according to any one of claims 1 to 3, which is formed by coating or affixing to a pedestal. The open / close display device for a wrench-type open / close valve device according to claim 4, wherein the colors of the first annular body and the second annular body are different. A rotating gear that is rotatably supported by the pedestal and
A rotating display body housed inside the upper part of the housing and having an internal gear is provided.
A visual control body that regulates visual recognition other than the required portion of the content indicating the open / closed state of the on-off valve attached to the rotary display body, and internal teeth having a different number of teeth from the internal gear of the rotary display body. It consists of an outer cylinder with gears and
Claims 1 to claim that a differential rotation mechanism is configured by the internal gear of the outer cylindrical body that meshes with the rotary gear, the internal gear of the rotary display body that meshes with the rotary gear, and the rotary gear. The open / close display device for the wrench type open / close valve device according to any one of Item 5. The tapered upper plate portion of the rotary display body whose inner peripheral side protrudes upward is provided with a content indicating the open / closed state of the on-off valve.
The open / close display device for a wrench-type open / close valve device according to claim 6, wherein the contents can be visually recognized through an opening hole also provided in a tapered upper wall portion of the visual restriction body. A wrench-type on-off valve device in which the valve stem of the on-off valve of the valve body is externally operated by a wrench.
An open / close display device for displaying the open / closed state of the on-off valve is provided.
The open / close display device is
A housing that is externally fitted to the valve stem and rotates together with the valve stem,
An annulus containing at least a part thereof is provided inside the lower part of the housing.
A screwing mechanism that allows the annular body to be screwed in the rotation axis direction of the housing is configured by the housing and the annular body.
A wrench-type open / close valve having a sliding mechanism that allows the annular body to slide in the direction of the rotation axis of the housing with the annular body and the housing of the valve body or the pedestal body fixed to the valve body. Device. A cylinder container with a valve provided with the wrench-type on-off valve device according to claim 8. An opening hole is provided in the upper part to enable the valve rod to be operated externally.
The cylinder container with a valve according to claim 9, further comprising a cylinder cap provided with an opening window for visually recognizing the annular body on the side portion.

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