JP4399218B2 - Valve handle - Google Patents

Description

  The present invention relates to a valve handle used for opening and closing a flow path of a transport fluid of a valve attached to a pipe body such as a water pipe.

Conventionally, a valve handle is used to open and close a flow path of a transport fluid of a valve attached to a pipe body such as a water pipe. As this type of valve handle, the following is known (for example, see Patent Document 1). That is, it consists of a knob as an operation handle and an extension shaft, a recess is formed at the lower end of the knob, a projection that fits into the recess is formed at the upper end of the extension shaft, and a recess is formed at the lower end. This is a type in which a groove is formed. The valve handle is provided with four extension shafts having different lengths so that the distance between the valve and the knob can be adjusted according to the use situation. For example, when opening and closing the transport fluid flow path of a valve whose tube is covered with a heat insulating material when a fluid with a large temperature difference from the surroundings flows, it is larger than the thickness of the heat insulating material and the knob. The extension shaft body suitable for the height at which it is easy to perform the rotation operation is selected and attached to the valve.

When the opening / closing operation of the flow path of the transport fluid of the valve is performed, first, the protruding portion provided on the outer peripheral surface of the central portion of the valve is fitted with the concave groove provided on the lower end of the extension shaft body. Next, the concave portion provided at the lower end of the knob and the convex portion provided at the upper end of the extension shaft body are fitted together to assemble the valve handle. Then, the flow path of the transport fluid of the valve is opened and closed by rotating the extension shaft through the knob.
Japanese Patent Laid-Open No. 10-160038 (page 2, FIG. 1)

However, the above-described conventional valve handle requires four extension shafts, so that the number of parts is large, and there is a problem that more parts than necessary are prepared. In addition, when opening and closing the transport fluid flow path of a valve whose tube is covered with a heat insulating material, etc., an extension shaft body of an appropriate length that is easy to rotate the knob by measuring the thickness of the heat insulating material There is a problem that it is necessary to select and wear the four from the four, and it takes time and effort.

  The present invention has been made paying attention to such problems existing in the prior art. An object of the present invention is to provide a valve handle that has a small number of parts, has a simple structure, and can easily adjust the distance between the valve body and the operation handle.

In order to achieve the above object, the valve handle according to the first aspect of the present invention is rotatably supported in the valve body, and is connected to a valve body that opens and closes the flow path of the transport fluid to rotate integrally. A cylindrical shaft body that moves, and an operation handle having a support cylinder fitted to the shaft body, and at least one of the shaft body and the support cylinder of the operation handle has a plurality of first engaging portions. A second engaging portion that engages with the first engaging portion is provided on the other side, and the support cylinder of the operation handle slides along the axis of the shaft body, and the first engaging portion and the first engaging portion In order to insert an auxiliary member for sliding the support cylinder of the operation handle along the axis of the shaft body at the end of the support cylinder of the operation handle. The first cutting groove is provided as a gist.
The valve handle of the invention according to claim 2 is rotatably supported in the valve body, and is connected to a valve body that opens and closes the flow path of the transport fluid, and rotates integrally therewith. An operation handle having a support tube fitted to the shaft body, and at least one of the shaft body and the support tube of the operation handle is provided with a plurality of first engaging portions, and the other is provided with a first of them. A second engagement portion that engages with the first engagement portion is provided, and the support cylinder of the operation handle slides along the axis of the shaft body, and the first engagement portion and the second engagement portion are engaged with each other. A slide restricting member is detachably mounted on the outer peripheral portion of the shaft body with the first and second engaging portions engaged with each other while being positioned and held at a plurality of locations. By engaging the end of the support cylinder of the handle, the handle of the operation handle toward the end of the shaft body Id is the gist that it is configured to be regulated.

The valve handle according to a third aspect of the present invention is the valve handle according to the first or second aspect , wherein the sliding resistance when the support tube of the operation handle slides along the axis of the shaft is The gist is that it is set to be smaller than the coupling force of the shaft body with respect to.

A valve handle according to a fourth aspect of the present invention is the valve handle according to the first or second aspect , wherein the first engagement portion and the second engagement portion are engaged by a concavo-convex relationship to support the operation handle. The gist is that a pair of first engaging portions or second engaging portions are provided in opposed positions inside the cylinder.

A valve handle according to a fifth aspect of the present invention is the valve handle according to any one of the first to fourth aspects, wherein an operation for the shaft body is performed between the support tube of the operation handle and the shaft body. The gist is that a detent means for restricting the relative rotation of the handle is provided.

A valve handle according to a sixth aspect of the present invention is characterized in that, in the invention according to the fifth aspect , the anti-rotation means is constituted by a support tube of the operation handle and a rectangular tube structure of the shaft.

A valve handle according to a seventh aspect of the present invention is the valve handle according to the sixth aspect of the present invention, wherein the flow path of the transport fluid in the valve main body is opened and closed between the support cylinder of the operation handle and the shaft. In addition, the gist is that an uneven structure is provided to guide the operation handle.

Valve handle of the invention of claim 8 is the invention according to claims 1, or claim 3 to one of claims 7, to an end portion of the shaft body, the support tube of the operating handle The gist is that a second cut groove communicating with the first cut groove is provided.

  A valve handle according to a ninth aspect of the present invention is the valve handle according to any one of the first to eighth aspects, wherein the shaft body has an opening / closing state of a flow path of the transport fluid in the valve body. The gist is that a mark for mounting the operation handle is provided.

Valve handle of the invention described in claim 10 is the invention according to claims 2 to claims 9, wherein the slide regulating member formed by substantially C-shaped cross section of the tubular body The gist is that it is a spacer.

As described in detail above, the present invention has the following effects.
According to the valve handle of the first aspect of the invention, the number of parts is small and the configuration is simple, and the distance between the valve main body and the operation handle can be easily adjusted. Further, the engagement between the shaft body and the operation handle can be easily released.
According to the valve handle of the invention of the second aspect, the sliding of the operation handle can be surely restricted.

According to the valve handle of the invention of claim 3 and claim 4 , in addition to the effect of the invention of claim 1 or claim 2 , the distance between the valve body and the operation handle is further facilitated. Can be adjusted.

According to the valve handle of the invention described in claims 5 and 6 , in addition to the effect of the invention described in any one of claims 1 to 4 , the relative rotation of the operation handle with respect to the shaft body. Can be effectively regulated.

According to the valve handle of the invention described in claim 7 , in addition to the effect of the invention described in claim 6 , the support cylinder of the operation handle can be easily and quickly fitted to the shaft body.
According to the valve handle in the embodiment described in 請 Motomeko 8, claim 1, or claim 3, in addition to the effect of the invention according to any one of claims 7, the shaft member and the operating handle The engagement can be easily released.

  According to the valve handle of the invention described in claim 9, in addition to the effect of the invention described in any one of claims 1 to 8, in the open / close state of the flow path of the transport fluid in the valve body. In addition, the operation handle can be easily attached to the shaft body.

According to the valve handle of the invention of claim 10 , in addition to the effect of the invention of any one of claims 2 to 9 , the slide restricting member can be easily attached and detached. .

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
(First embodiment)
As shown in FIG. 1, the valve body 11 has a substantially cylindrical shape with a female thread portion 13 threaded on the inner peripheral surface of one end portion (left end portion in FIG. 1) of the first split body 12 having a substantially cylindrical shape. The first male screw portion 15 is screwed and connected to the outer peripheral surface of one end portion (right end portion in FIG. 1) of the second split body 14. A second male screw portion 16 is threaded on the outer peripheral surface of the other end portion of the first split body 12, and a third male screw portion 17 is threaded on the outer peripheral surface of the other end portion of the second split body 14. And the 2nd external thread part 16 and the 3rd external thread part 17 can be screwed together with pipes, such as a water pipe which is not illustrated, respectively.

  A first flow path 18 extending in the axial direction is formed in the valve main body 11, and when the valve main body 11 is screwed into a pipe body such as a water pipe, transport fluid flows through the first flow path 18. It is like that. A first seal ring 19 made of a rubber material and having a circular cross section is fitted between the internal thread portion 13 of the first segment 12 and the first external thread portion 15 of the second segment 14. An arc-shaped first engagement surface 20 is formed on the inner peripheral surface of the substantially central portion of the first split body 12, and an arc-shaped second engagement is also formed on the inner peripheral surface of one end portion of the second split body 14. A surface 21 is formed. An accommodation space 22 is formed by the first engagement surface 20 and the second engagement surface 21. The first engagement surface 20 and the second engagement surface 21 are respectively provided with an annular second seal ring 23 and a third seal ring 24 made of a rubber material.

  A spherical valve body 25 is accommodated in the accommodating space 22 and is rotatably supported by the inner peripheral surface of the second seal ring 23 and the inner peripheral surface of the third seal ring 24. A second flow path 26 communicating with the first flow path 18 is formed through the valve body 25 when the flow path of the transport fluid is opened. Further, as shown in FIGS. 6A and 6B, the upper end of the valve body 25 has a plane substantially long rectangular shape having a long side extending in a direction orthogonal to the length direction of the second flow path 26. A fitting recess 27 is provided.

  As shown in FIG. 1, a cylindrical bearing tube 28 projects from a substantially central portion of the first split body 12, and a substantially cylindrical connecting shaft 29 is fitted into the bearing tube 28. Yes. A fitting protrusion 30 is provided on the inner end surface of the connecting shaft 29 and is fitted in the fitting recess 27. A pair of receiving grooves 31 are recessed along the circumferential direction on the outer peripheral surface of the connecting shaft 29, and a fourth seal ring 32 made of a rubber material and having a circular cross section is fitted into each receiving groove 31. The space between the inner peripheral surface of the bearing tube 28 and the outer peripheral surface of the connecting shaft 29 is sealed. Further, a projecting portion 33 having a two-section cut shape is provided on the outer end portion of the connecting shaft 29 through two steps from the inner end side, and a locking protrusion is formed on the outer peripheral surface of the projecting portion 33. 34 is provided around.

  As shown in FIGS. 1, 2A, and 3A, the valve handle is fitted to the shaft 35, which is attached to the connecting shaft 29 of the valve, and the coaxial body. The operation handle 46 is slidable along the direction of the first axis 36 of 35.

  First, the shaft body 35 will be described. As shown in FIGS. 3A and 3C, the shaft body 35 has a rectangular tube structure, that is, a bottomed hexagonal cylinder shape, and inwardly in the direction of the first axis 36 of the shaft body 35 at the center of the bottom portion. A recessed fitting recess 37 is provided. The fitting recess 37 is formed with a projecting portion insertion space 38 having a two-section cut shape into which the projecting portion 33 of the connecting shaft 29 is inserted through two steps from the inner end side. A locking recess 39 is provided around the space 38. 4 and 5, when the shaft body 35 is mounted on the connecting shaft 29 of the valve, the locking protrusion 34 of the connecting shaft 29 and the locking recess 39 of the shaft body 35 are provided. Are to be engaged. In addition, the protrusion 33 of the connection shaft 29 of the valve is inserted into the protrusion insertion space 38 of the shaft body 35, so that the relative rotation of the shaft body 35 with respect to the connection shaft 29 is restricted.

  On the inner end side and the outer end side of the outer surface of the outer peripheral wall of the shaft body 35, a first engagement groove 40 and a second engagement groove 41 are provided as first engagement portions, respectively. As shown in FIG. 3B, the first engaging groove 40 and the second engaging groove 41 have a bottom surface 42 formed flat and both sides formed on a first arcuate surface 43. Further, a locking rod 44 projects from the outer peripheral surface of the inner end portion of the shaft body 35, and its outer surface comes into contact with the outer end surface of the bearing tube 28.

  Further, as shown in FIGS. 3 (a) and 3 (c), the outer end surface of the shaft body 35 is provided with a mark when the operation handle 46 is mounted in accordance with the open / close state of the flow path of the transport fluid in the valve body 11. A pair of recesses 45 are formed on the same line.

  Next, the operation handle 46 will be described. As shown in FIGS. 2A and 2C, the operation handle 46 is formed so as to extend in a direction orthogonal to the second axis 48 of the support cylinder 47 from the outer end portion of the support cylinder 47 having a substantially cylindrical shape. The holding portion 49 is formed into a T shape. An insertion hole 50 having a hexagonal cross section and an inner end opened is formed inside the support cylinder 47, and the outer peripheral wall of the shaft body 35 is fitted into the insertion hole 50 of the support cylinder 47. . The insertion hole 50 of the support cylinder 47 and the outer peripheral wall of the shaft body 35 constitute a means for preventing the operation handle 46 from rotating with respect to the shaft body 35.

  As shown in FIGS. 2 (a) and 2 (b), the inner peripheral surface of the inner end portion of the support tube 47 of the operation handle 46 has a mountain shape as a second engagement portion protruding radially inward of the support tube 47. The engaging protrusion 51 is provided around. The engaging protrusion 51 has a top surface 52 formed in a flat shape and a side surface formed in a second arcuate surface 53. When the support cylinder 47 of the operation handle 46 is fitted on the shaft body 35, the engagement protrusion 51 of the operation handle 46 is changed to the first engagement groove 40 or the second engagement groove 41 of the shaft body 35. By engaging, the operation handle 46 is positioned and held at two locations of the shaft body 35.

  As shown in FIGS. 1 and 2C, a pair of first cut grooves 54 are formed on the inner end surface of the support cylinder 47 of the operation handle 46 in the same direction as the direction in which the grip portion 49 extends. As shown in FIGS. 4 and 5, when the valve and the pipe attached to the valve are covered with a heat insulating material 56 in winter, the engagement protrusion 51 of the operation handle 46 and the first engagement of the shaft body 35 are provided. When the engagement with the recess 40 is released, the tip of a driver 55 as an auxiliary member is inserted into one first cut groove 54.

Next, the operation of the valve handle of the first embodiment will be described below.
Now, when the heat insulating material 56 is not required at a time other than winter, first, as shown in FIG. 6A, the arrangement direction of the pair of recesses 45 of the shaft body 35 and the first flow path in the valve body 11 are used. The shaft body 35 is extrapolated to the connecting shaft 29 of the valve in a state where the length direction of the shaft 18 is the same. Next, the operation handle 46 is extrapolated to the outer peripheral wall of the shaft body 35 so that the extending direction of the grip portion 49 of the operation handle 46 and the arrangement direction of the pair of recesses 45 of the shaft body 35 are the same. Then, as shown in FIG. 4, the engagement protrusion 51 of the operation handle 46 and the first engagement recess 40 of the shaft body 35 are engaged, and the operation handle 46 is fixed to the shaft body 35.

  In the winter season, when the heat insulating material 56 is required, first, as shown in FIG. 4, one of the first cut grooves 54 provided on the inner end surface of the support tube 47 of the operation handle 46 is one of the first cut grooves 54. The tip of the driver 55 is inserted into the first cut groove 54 from the side of the cut groove 54. Next, the hand of the driver 55 is pulled downward so as to push the inner end face of the locking rod 44 of the shaft body 35. Then, the lever 55 is engaged with the engagement protrusion 51 of the operation handle 46 and the first engagement recess 40 of the shaft body 35 by using the contact portion between the tip of the driver 55 and the locking rod 44 as an action point. Is released, and the side portion of the operation handle 46 on the side where the driver 55 is pressed is lifted.

  Subsequently, as shown in FIG. 5, the operation handle 46 is slid outward in the first axis 36 direction of the shaft body 35 while the inner peripheral surface of the support cylinder 47 of the operation handle 46 is in sliding contact with the outer peripheral wall of the shaft body 35. Let Then, the engagement protrusion 51 of the support cylinder 47 of the operation handle 46 is engaged with the second engagement recess 41 of the shaft body 35, and the operation handle 46 is fixed to the shaft body 35 at this position. Thereafter, the heat insulating material 56 is attached to the valve and the pipe attached to the valve.

  As shown in FIGS. 6A and 6B, when the opening / closing operation of the flow path of the transport fluid in the valve body 11 is performed, the outer peripheral wall of the shaft body 35 is fitted in the insertion hole 50 of the operation handle 46. Then, the relative rotation of the operation handle 46 with respect to the shaft body 35 is restricted. For this reason, the operation handle 46 and the shaft body 35 rotate together. As shown in FIG. 6B, when the flow path of the transport fluid in the valve body 11 is opened, the extending direction of the grip portion 49 of the operation handle 46 is the direction of the first flow path 18 in the valve body 11. Orthogonal to the length direction. Further, as shown in FIG. 6A, when the flow path of the transport fluid in the valve body 11 is closed, the extending direction of the grip portion 49 of the operation handle 46 is the direction of the first flow path 18 in the valve body 11. It becomes the same as the length direction.

The effects exhibited by the first embodiment will be described below.
The valve handle of the first embodiment is operated by a one-touch operation in which the engagement protrusion 51 of the operation handle 46 is engaged with the first engagement groove 40 or the second engagement groove 41 of the shaft body 35. The handle 46 is held at two positions on the shaft body 35. That is, the holding position of the operation handle 46 can be changed with respect to one shaft body 35 in accordance with the usage state of the valve handle. For this reason, the number of parts is small, the configuration is simple, and the distance between the valve body 11 and the operation handle 46 can be easily adjusted.

  In addition, the outer peripheral wall of the shaft body 35 and the insertion hole 50 provided in the support tube 47 of the operation handle 46 are formed in a hexagonal cross section, and when performing the opening / closing operation of the flow passage in the valve body 11, The outer peripheral wall of the shaft body 35 is fitted in the insertion hole 50 of the operation handle 46 so that the operation handle 46 and the shaft body 35 rotate integrally. For this reason, relative rotation of the operation handle 46 with respect to the shaft body 35 can be effectively restricted.

  Further, the engagement between the engagement protrusion 51 of the operation handle 46 and the first engagement recess 40 of the shaft body 35 is released to the first cut groove 54 on the inner end surface of the support cylinder 47 of the operation handle 46. This is performed by a one-touch operation of inserting the tip of 55 and lowering its hand downward. Therefore, the engagement between the engagement protrusion 51 of the operation handle 46 and the first engagement recess 40 of the shaft body 35 can be easily released.

  A pair of recesses 45 are formed on the same line on the outer end surface of the shaft body 35, and the direction thereof coincides with the direction of the flow path in the valve body 11. Further, the operation handle 46 is extrapolated to the shaft body 35 so that the extending direction of the grip portion 49 and the arrangement direction of the pair of recesses 45 of the shaft body 35 are the same. Therefore, the operation handle 46 can be easily attached to the shaft body 35 in accordance with the open / closed state of the flow path of the transport fluid in the valve body 11. In addition, after the operation handle 46 is fitted to the shaft body 35, the opening / closing state of the flow path of the transport fluid in the valve body 11 can be easily observed by visually checking the extending direction of the grip portion 49 of the operation handle 46. Can be determined.

  When the engaging protrusion 51 of the operation handle 46 is engaged with the first engaging groove 40 or the second engaging groove 41 of the shaft body 35, the second arc surface 53 of the engaging protrusion 51 and The first arcuate grooves 43 of the first engaging grooves 40 or the second engaging grooves 41 are in contact with each other. For this reason, when performing the opening / closing operation | movement of the flow path in the valve main body 11, the disengagement of the engagement protrusion 51 from the 1st engagement groove 40 or the 2nd engagement groove 41 is suppressed effectively. Can do.

(Second Embodiment)
In the second embodiment, differences from the first embodiment will be mainly described.
First, the shaft body 35 will be described. As shown in FIGS. 8A and 11, the locking recess 39 provided in the fitting recess 37 of the shaft body 35 has a flat bottom surface 42, and both sides thereof are formed on the third arc surface 61. Has been. Each third arc surface 61 is formed such that a tangent line passing through the midpoint thereof is inclined by approximately 30 ° with respect to the first axis 36 of the shaft body 35. When the shaft body 35 is attached to the connecting shaft 29, the outer surface of the locking protrusion 34 is in close contact with the inner surface of the locking recess 39 of the shaft body 35.

  Further, when the operation handle 46 slides outside the first axis 36 of the shaft body 35, the locking protrusion 34 is locked to the locking recess 39, and the shaft body 35 from the connecting shaft 29 of the valve is moved. Escape is regulated. That is, the sliding resistance when the operation handle 46 slides along the first axis 36 is set smaller than the connecting force of the shaft body 35 to the connecting shaft 29.

  As shown in FIG. 8, on the outer peripheral wall of the shaft body 35, a pair of opposing outer walls guides when the operation handle 46 is mounted in accordance with the open / close state of the flow path of the transport fluid in the valve body 11. A guide ridge 62 constituting the concavo-convex structure is provided so as to project. These guide ridges 62 are provided substantially at the center of the outer wall, and are formed in an elongated shape along the first axis 36 of the shaft body 35.

  As shown in FIG. 8A, in the outer peripheral wall of the shaft body 35, second cut grooves 63 are formed through the inner end portions of the pair of outer walls provided with the respective guide protrusions 62. The upper surface of the second cut groove 63 is an inclined surface 63 a that is inclined approximately 45 ° with respect to the first axis 36.

  Further, as shown in FIGS. 8A and 8B, the inner end side and the outer end side of the outer surfaces of the pair of outer walls adjacent to and opposed to the pair of outer walls provided with the guide protrusions 62 are provided on the outer end side. Each of the first engaging grooves 40 and the second engaging grooves 41 is provided as a first engaging portion. As shown in FIG. 8D, the bottom surface 42 of the first engaging groove 40 is formed flat, and the outer end side is formed on the fourth arc surface 64 and the inner end side is formed on the fifth arc surface 65. Has been. The fourth arc surface 64 and the fifth arc surface 65 are formed such that tangents passing through the respective midpoints are inclined at approximately 30 ° and 45 ° with respect to the first axis 36.

  On the other hand, as shown in FIGS. 8A and 8C, the bottom surface 42 of the second engaging groove 41 is formed flat, the outer end side thereof is the sixth arc surface 66, and the inner end side is the second one. 7 arc surfaces 67 are formed. The sixth arc surface 66 and the seventh arc surface 67 are formed such that tangents passing through the respective midpoints are inclined at approximately 45 ° and 30 ° with respect to the first axis 36.

  A locking means (not shown) is provided between the inner peripheral surface of the inner end portion of the shaft body 35 and the outer surface of the connecting shaft 29 of the valve, and this locking means allows the shaft body 35 to rotate relative to the bearing tube 28. It is regulated at 90 °.

  Next, the operation handle 46 will be described. As shown in FIG. 7, inside the support tube 47 of the operation handle 46, the guide concave grooves 71 constituting the concavo-convex structure are respectively formed in the center portions of the pair of inner walls located in the same direction as the extending direction of the grip portion 49. Is recessed. As shown in FIGS. 7A and 7C, each guide groove 71 extends along the second axis 48 of the support tube 47, and the outer end of the guide groove 71 extends to the top in the support tube 47. In addition, the inner end extends to the first cut groove 54.

  As shown in FIGS. 7B and 7C, the inner end portions of the pair of inner walls adjacent to and opposed to the pair of inner walls provided with the guide concave grooves 71 respectively serve as second engaging portions. Engagement ridges 51 project. As shown in FIGS. 9B and 12B, the engaging protrusion 51 has a top surface 52 formed in a flat shape, and both end sides thereof are formed in an eighth arc surface 72. Each eighth arc surface 72 is formed such that a tangent line passing through the midpoint thereof is inclined by approximately 45 ° with respect to the second axis 48. When the inner peripheral surface of the support cylinder 47 is formed using an inclined slide core (not shown), the configuration in which the engaging protrusions 51 are provided at two opposing positions on the inner peripheral portion of the support cylinder 47 is easy. In addition, after the molding, the inclined slide core is easily released.

  When the support cylinder 47 of the operation handle 46 is fitted on the shaft body 35, the engagement protrusion 51 of the operation handle 46 is changed to the first engagement groove 40 or the second engagement groove 41 of the shaft body 35. By engaging, the operation handle 46 is positioned and held at two locations of the shaft body 35.

  When the heat insulating material 56 is not required at a time other than the winter season, first, as shown in FIG. 13, the arrangement direction of the pair of guide protrusions 62 of the shaft body 35 and the first flow path 18 in the valve body 11. The shaft body 35 is externally fitted to the connecting shaft 29 of the valve in a state where the length direction is the same. Next, as shown in FIG. 9, the operation handle 46 is fitted on the outer peripheral wall of the shaft body 35 so that the guide groove 71 in the operation handle 46 is fitted to the guide protrusion 62 of the shaft body 35.

  At this time, the operation handle 46 is smoothly fitted onto the shaft body 35 in a state where the shape of the inner peripheral wall of the support tube 47 and the shape of the outer peripheral wall of the shaft body 35 coincide with each other. Then, the engagement protrusion 51 of the operation handle 46 and the first engagement groove 40 of the shaft body 35 are engaged, and the first cut groove 54 of the operation handle 46 and the second cut groove 63 of the shaft body 35 The operation handle 46 is fixed to the shaft body 35.

  In the winter season, when the heat insulating material 56 is required, first, as shown in FIG. 9A, one of the first cut grooves 54 provided in the operation handle 46 and the shaft body 35 is the first one. The tip of the driver 55 is inserted into the second cut groove 63 from the side of the cut groove 54 through the first cut groove 54. Next, as shown in FIG. 10, the hand of the driver 55 is pulled upward so as to push the inner end surface of the locking rod 44 of the shaft body 35. Then, the tip of the driver 55 presses against the inclined surface 63a, and the engaging protrusion 51 of the operation handle 46 causes the engaging protrusion 51 of the operating body 46 to be the first of the shaft body 35 by using the contact portion with the locking rod 44 as an action point. It moves slightly upward with respect to the engaging groove 40.

  Next, when the operation handle 46 is pulled up along the first axis 36, the engagement protrusion 51 comes out of the first engagement recess 40, and at the same time, the support tube 47 is provided with a pair of engagement protrusions 51. The inner wall is pressed outward. As a result, the engagement between the engagement protrusion 51 of the operation handle 46 and the first engagement recess 40 of the shaft body 35 is easily released.

  Subsequently, the operation handle 46 is pulled up along the first axis 36. At this time, the state in which the locking protrusion 34 of the connecting shaft 29 is locked to the locking recess 39 of the shaft body 35 is maintained, and the shaft body 35 is extrapolated to the connecting shaft 29 along with this. The operation handle 46 slides smoothly on the outer surface of the shaft body 35.

  Then, as shown in FIG. 12A, the engagement protrusion 51 of the support tube 47 of the operation handle 46 is engaged with the second engagement groove 41 of the shaft body 35, and the operation handle 46 is pivoted at this position. Secure to body 35. Thereafter, the heat insulating material 56 is attached to the valve and the pipe attached to the valve.

The effects exhibited by the second embodiment will be described below.
In the valve handle of the second embodiment, the sliding resistance when the operation handle 46 slides along the first axis 36 is set smaller than the connecting force of the shaft body 35 to the connecting shaft 29. That is, the shaft body 35 is not detached from the connecting shaft 29 at the same time as the operation handle 46 is pulled up after the engagement of the engagement protrusion 51 and the first engagement groove 40 is released using the driver 55. For this reason, the operation handle 46 can be smoothly slid, and the interval between the valve body 11 and the operation handle 46 can be easily adjusted.

  In the support tube 47 of the operation handle 46, engaging ridges 51 project from a pair of opposing inner walls. That is, when the engagement of the engagement protrusion 51 and the first engagement recess 40 is released using the driver 55, the pair of inner walls provided with the engagement protrusion 51 are uniformly outward. The engagement between the two is easily released. Therefore, compared to the first embodiment in which the engagement protrusions 51 are formed on the entire circumference of the inner peripheral portion of the support cylinder 47, the support cylinder 47 is easily pressed outward, and the valve body 11 and the operation handle 46. The distance between the two can be adjusted more easily.

  A pair of guide protrusions 62 are provided on the outer peripheral wall of the shaft body 35, and a pair of guide grooves 71 are provided on the inner peripheral wall of the support tube 47 of the operation handle 46. That is, when connecting the valve handle to the connecting shaft 29, the guide groove 71 of the operation handle 46 is fitted into the guide protrusion 62 of the shaft body 35. For this reason, the operation handle 46 can be easily and quickly fitted onto the shaft body 35 in a state where the shapes of the support cylinder 47 and the shaft body 35 match.

  A pair of second cut grooves 63 are formed in the inner end portion of the outer wall of the shaft body 35. That is, to release the engagement between the engagement protrusion 51 of the operation handle 46 and the first engagement recess 40 of the shaft body 35, the tip of the driver 55 is inserted into the second cut groove 63 of the shaft body 35. Is done. At this time, the distal end of the driver 55 is inserted to the inner back side of the shaft body 35 as compared with the first embodiment, and the power point is slightly displaced toward the proximal end side of the driver 55. Therefore, the operation handle 46 can be easily lifted in a state where the force applied to the driver 55 is reduced, and the engagement between the engagement protrusion 51 and the first engagement recess 40 can be released more easily. .

  The upper surface of the second cut groove 63 of the shaft body 35 is an inclined surface 63a inclined by approximately 45 ° with respect to the first axis 36. That is, when the engagement between the engagement protrusion 51 of the operation handle 46 and the first engagement recess 40 of the shaft body 35 is released using the driver 55, the tip of the driver 55 is guided to the inclined surface 63a. Therefore, it is easy to pull up the driver 55. Therefore, the engagement between the engagement protrusion 51 and the first engagement recess 40 can be released more easily.

Both embodiments may be modified and embodied as follows.
(1) The number of engagement protrusions 51 provided on the inner peripheral surface of the support tube 47 of the operation handle 46 of the first embodiment is not limited to one, and may be two or more. Moreover, the engagement groove provided in the outer peripheral wall of the shaft body 35 is not limited to a pair, and may be three or more. When configured in this way, two or more engaging portions are provided between the operation handle 46 and the shaft body 35, so that more holding positions of the operation handle 46 in the shaft body 35 can be secured, and the heat insulating material 56 It is possible to more effectively cope with the thickness.

  (2) A configuration in which an engagement groove is provided on the inner peripheral surface of the support cylinder 47 of the operation handle 46 of the first embodiment and an engagement protrusion 51 is provided on the outer peripheral wall of the shaft body 35 may be adopted. At this time, the number of engagement grooves provided on the inner peripheral surface of the operation handle 46 is not limited to one, and may be two or more. Moreover, the engagement protrusion 51 provided in the outer peripheral wall of the shaft body 35 is not limited to a pair, and may be three or more.

  (3) A configuration may be employed in which the engagement protrusion 51 is provided on the outer peripheral surface of the support cylinder 47 of the operation handle 46 of the first embodiment and the engagement recess is provided on the inner peripheral wall of the shaft body 35. At this time, the numbers of the engaging protrusions 51 and the engaging recesses may be changed as shown in (1).

  (4) A configuration in which an engagement groove is provided on the outer peripheral surface of the support cylinder 47 of the operation handle 46 of the first embodiment and an engagement protrusion 51 is provided on the inner peripheral wall of the shaft body 35 may be adopted. At this time, the number of the engaging ridges and the engaging ridges 51 may be changed as shown in (2).

(5) The engagement protrusion 51 of the support tube 47 of the operation handle 46 of the first embodiment may be configured to be provided on the inner peripheral surface of the support tube 47 or a part of the outer peripheral surface.
(6) In the first embodiment, the pair of recesses 45 are provided on the outer end surface of the shaft body 35, but the pair of recesses 45 may be provided on the outer peripheral wall of the shaft body 35 on the portion facing the outer periphery surface.

  (7) While changing the 1st circular arc surface 43 of the 1st engaging groove 40 and the 2nd engaging groove 41 of the shaft 35 of 1st Embodiment to the slanting surface which carries out diameter reduction toward the bottom face 42, The second arcuate surface 53 of the engaging protrusion 51 of the operation handle 46 may be changed to a slanted surface that decreases in diameter toward the top surface 52. When comprised in this way, engagement with the engagement protrusion 51 of the operation handle 46 and the 1st engagement groove 40 of the shaft body 35 and the 2nd engagement groove 41 can be performed more easily.

(8) You may change the inclination-angle with respect to the 1st axis line 36 of the inclined surface 63a of the shaft body 35 of 2nd Embodiment to 30 degrees, 40 degrees, 50 degrees, etc.
(9) The locking means of the second embodiment may be provided between the shaft body 35 and the connecting shaft 29 of the first embodiment.

  (10) In the state where the engagement protrusion 51 of the operation handle 46 of both embodiments is engaged with the second engagement recess 41 of the shaft body 35, the inner end of the support tube 47 of the operation handle 46 and the shaft body A spacer as a slide restricting member may be mounted on the outer peripheral portion of the shaft body 35 positioned between the 35 locking rods 44. As shown in FIGS. 14A and 14B, the spacer 101 is made of a polyacetal resin having flexibility, and is formed of a cylindrical body having a substantially C-shaped cross section having an opening 102 between tip portions. Yes.

  When attaching the spacer 101 to the outer periphery of the shaft body 35, as shown in FIG. 1, first, the opening 102 of the spacer 101 is pressed from the side to the outer periphery of the shaft body 35. Then, the opening 102 of the spacer 101 is easily expanded due to its flexibility. Then, by pushing the spacer 101 further to the side, the outer peripheral surface of the shaft body 35 and the inner peripheral surface of the spacer 101 are brought into close contact with each other, as shown by a two-dot chain line in FIGS. 3 (c) and 8 (b). In this state, the spacer 101 can be easily attached to the shaft body 35.

  As shown in FIG. 5 and FIG. 12A, when an external force is applied to the operation handle 46 while the engagement protrusion 51 is engaged with the second engagement recess 41. The inner end of the support cylinder 47 is engaged with the outer end of the spacer 101. Thereby, the downward sliding of the operation handle 46 in the first axis 36 direction can be restricted, and the operation handle 46 can be held at a predetermined position.

  Further, from the state in which the engagement protrusion 51 of the operation handle 46 is engaged with the second engagement groove 41 of the shaft body 35, the engagement protrusion 51 is changed to the first engagement groove 40 of the shaft body 35. When engaging, first, the spacer 101 is removed from the outer periphery of the shaft body 35. Subsequently, the engagement between the engagement protrusion 51 and the second engagement groove 41 is released, the operation handle 46 is pushed down along the first axis 36, and the engagement protrusion 51 is moved down to the first engagement groove. 40 is engaged.

(11) In the above (10), a spacer 101 formed of a flexible metal material may be used.
(12) The first cut grooves 54 provided on the inner end surface of the support cylinder 47 of the operation handle 46 of both embodiments are not limited to a pair, and may be one or three or more.

  (13) The shape of the outer peripheral wall of the shaft body 35 and the insertion hole 50 of the operation handle 46 in both embodiments is changed to a square cross section, a cross section octagonal shape, a cross section cut shape, etc. You may comprise the anti-rotation means which controls relative rotation.

  (14) You may employ | adopt the structure by which the inner end part of the shaft body 35 of both embodiment is inserted in the connection shaft 29 of a valve | bulb. That is, a protruding portion is provided at the inner end portion of the shaft body 35, and a recess into which the protruding portion of the shaft body 35 is inserted is provided in the connecting shaft 29. Further, a locking recess 39 or a locking protrusion 34 is provided on the outer peripheral surface of the protruding portion of the shaft body 35, and the locking protrusion 34 or the locking recess is formed on the inner peripheral surface of the recess of the connecting shaft 29. 39 is provided.

  (15) When the second male screw part 16 or the third male screw part 17 of the valve body 11 of both embodiments is screwed into a water pipe or the like, the valve is operated with the operation handle 46 positioned and fixed with respect to the shaft body 35. It is good also as a structure which pulls out the handle for use from the connection shaft 29. FIG.

  At this time, as shown in FIGS. 9B and 11, the inclination angle of the tangent line passing through the midpoint of the eighth arc surface 72 with respect to the direction in which the engaging protrusion 51 is pulled out (the first axis 36 direction) is It is set larger than the inclination angle of the tangent line passing through the midpoint of the outer surface of the locking protrusion 34 with respect to the direction in which the stopping protrusion 34 is pulled out (the first axis 36 direction). That is, the engagement force between the engagement protrusion 51 and the first engagement groove 40 is larger than the engagement force between the engagement protrusion 34 and the engagement groove 39 (the connection force of the shaft body 35 with respect to the connection shaft 29). Is set. For this reason, when the valve handle is pulled out from the connecting shaft 29, the engagement protrusions 51 and the engagement grooves 39 are engaged with the engagement protrusions 51 engaged with the first engagement grooves 40. Is released. As a result, the coaxial body 35 is pulled out from the connecting shaft 29 of the valve while the operation handle 46 is positioned and fixed to the shaft body 35.

  On the other hand, when the valve handle in a state where the engagement protrusion 51 of the operation handle 46 is engaged with the second engagement recess 41 of the shaft body 35 is pulled out from the connecting shaft 29, the operation handle 46 is similarly The coaxial body 35 is pulled out from the connecting shaft 29 of the valve while being positioned and fixed to the shaft body 35.

  (16) When attaching the heat insulating material 56 to the valve in winter, the shaft body 35 may be first removed from the connecting shaft 29 of the valve, and the operation handle 46 may be pulled up in the same manner as described above. At this time, as shown in (11), the coaxial body 35 is pulled out from the connecting shaft 29 of the valve with the engagement protrusion 51 of the operation handle 46 engaged with the first engagement recess 40 of the shaft body 35. It is.

Further, the technical idea that can be grasped from the embodiment will be described below.
-One of the first engaging portion and the second engaging portion is formed by an engaging groove, and the other is formed by an engaging protrusion, and the engaging groove has a flat bottom surface. both side surfaces are formed in a circular arc surface, with flat top surface is provided on the engaging projection, Luba lube handle both side surfaces are formed in a circular arc surface. When comprised in this way, engagement with a 1st engaging part and a 2nd engaging part can be performed more firmly.

- said indicia handle for Luba lube provided on the end face of the shaft. When configured in this way, the operation handle can be easily attached to the shaft body in accordance with the open / closed state of the flow path of the transport fluid in the valve body.

The disassembled sectional side view which shows the state which connects the handle | steering_wheel for valves of 1st Embodiment to a valve | bulb. (A) is a partially broken side view showing an operation handle, (b) is an enlarged sectional view showing an engaging protrusion, and (c) is a bottom view showing the operation handle. (A) is a partially broken side view showing a shaft body, (b) is an enlarged sectional view showing an engaging groove, and (c) is a plan view showing the shaft body. The sectional side view which shows the state just before sliding an operation handle outward. The side sectional view showing the state where the operation handle was slid outward. (A) is a top view which shows the state in which the flow path of the valve is closed, (b) is a top view which shows the state in which the flow path of the valve is open | released. (A) is the partially broken side view which shows the operation handle of 2nd Embodiment, (b) is a bottom view which shows an operation handle, (c) is the 7c-7c sectional view taken on the line of FIG.7 (b). (A) is a partially broken side view showing the shaft body of the second embodiment, (b) is a plan view showing the shaft body, (c) is a sectional view taken along line 8c-8c in FIG. FIG. 8D is a sectional view taken along line 8d-8d in FIG. (A) is a side sectional view showing a state immediately before the operation handle is slid outward, and (b) is an enlarged side showing engagement between the engaging protrusion and the first engaging groove in FIG. 9 (a). Sectional drawing. The sectional side view which shows the effect | action which slides an operation handle outward. The expanded sectional side view which shows engagement with the latching protrusion of the connecting shaft of a valve | bulb, and the latching recess of a shaft body. (A) is a sectional side view showing a state in which the operating handle is slid outward, and (b) is an enlarged side sectional view showing engagement between the engaging protrusion and the second engaging groove in FIG. 12 (a). Figure. The top view which shows the state by which the flow path of the valve | bulb is closed. (A) is a perspective view which shows a spacer, (b) is the 14b-14b sectional view taken on the line of Fig.14 (a).

Explanation of symbols

  DESCRIPTION OF SYMBOLS 11 ... Valve body, 18 ... 1st flow path as a flow path, 25 ... Valve body, 26 ... 2nd flow path as a flow path, 35 ... Shaft body, 36 ... 1st axis as an axis, 46 ... Operation handle , 40... First engaging groove as the first engaging portion, 41. Second engaging groove as the first engaging portion, 45... Recessed portion as a mark, 51. Alignment ridge, 54... Cut groove, 55... Driver as an auxiliary member, 62... Guide ridge constituting the concavo-convex structure, 62 .. second cut groove, 71... Guide grooving constituting the concavo-convex structure, 101. Spacer as a member.

Claims (10)

An operation having a cylindrical shaft body that is rotatably supported in the valve body and is connected to a valve body that opens and closes the flow path of the transport fluid, and a support cylinder fitted to the shaft body. With a handle,
At least one of the shaft body and the support tube of the operation handle is provided with a plurality of first engagement portions, and the other is provided with a second engagement portion that engages with the first engagement portions. While the support cylinder of the handle slides along the axis of the shaft body, it is positioned and held at a plurality of locations by the engagement of the first engagement portion and the second engagement portion ,
The valve is characterized in that a first cut groove for inserting an auxiliary member for sliding the support cylinder of the operation handle along the axis of the shaft body is provided at an end of the support cylinder of the operation handle. Handle. An operation having a cylindrical shaft body that is rotatably supported in the valve body and is connected to a valve body that opens and closes the flow path of the transport fluid, and a support cylinder fitted to the shaft body. With a handle,
At least one of the shaft body and the support tube of the operation handle is provided with a plurality of first engagement portions, and the other is provided with a second engagement portion that engages with the first engagement portions. While the support cylinder of the handle slides along the axis of the shaft body, it is positioned and held at a plurality of locations by the engagement of the first engagement portion and the second engagement portion,
With the first engagement portion and the second engagement portion engaged, a slide restricting member is detachably attached to the outer peripheral portion of the shaft body, and the end portion of the support cylinder of the slide restricting member and the operation handle The valve handle is configured so that the sliding of the operation handle in the direction of the end of the shaft body is restricted by engaging with . The valve handle according to claim 1 or 2 , wherein a sliding resistance when the support tube of the operation handle slides along the axis of the shaft body is set smaller than a connecting force of the shaft body to the valve body. . The first engaging portion and the second engaging portion are engaged by a concavo-convex relationship, and a pair of first engaging portions or a second engaging portion is provided in an opposing position inside the support tube of the operation handle. The valve handle according to claim 1 or 2 . Wherein between the support tube and the shaft of the operating handle, from claim 1 detent means for restricting the relative rotation of the operation handle to the shaft body is provided in any one of claims 4 The valve handle described. 6. The valve handle according to claim 5, wherein the detent means is constituted by a support tube of an operation handle and a rectangular tube structure of a shaft body . Wherein between the support tube and the shaft of the operating handle,請 Motomeko the concavo-convex structure forming a guide when mounting the operating handle in accordance with the open or closed state of the flow path of the transport fluid within the valve body is provided with 6. The valve handle according to 6 . The end portion of the shaft body, wherein the operation a second claim notches are provided which communicates with the first notches of the support tube of the handle 1, or claims 3 to any one of claims 7 Handle for valve. The mark for mounting the operation handle according to the open / close state of the flow path of the transport fluid in the valve body is provided on the outer surface of the shaft body. Handle for valve. The valve handle according to any one of claims 2 to 9, wherein the slide restricting member is a spacer formed of a cylindrical body having a substantially C-shaped cross section .

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