JP2018144114A - Valve operation rod - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a valve operation rod capable of easily performing the operation of a valve provided at a position distant from a worker or the operation of a valve provided at a position across a fence.SOLUTION: A valve operation rod 1 is a device which performs valve operation by rotating a valve at a position distant from a worker or across a fence and comprises an operation rod body 10 provided in a rod-like form, a handle 20 fixed on the operation rod body 10 to rotate the operation rod body 10, and an operation body 30 fixed on the operation rod body 10 to rotate with the rotation of the handle 20, and to rotate the valve by engagement with the same. The operation rod body 10 comprise a first rod-like part 11, a second rod-like part 12, and a coupling part 13 which freely varies an angle the rotation axis of the first rod-like part 11 and the rotation axis of the second rod-like part 12 make. An operation body 30 comprises a base part 31 and an engagement part 32 engaged with the valve.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a valve operating rod for operating a valve of a pipe installed on a pipe rack of a power plant or the like.

  On the premises of a facility such as a power plant, piping for sending water, drainage, chemicals, air, etc. to a predetermined facility in the power plant is laid. This pipe is provided with a valve for performing opening / closing control of the flow of water or the like flowing therein and for controlling the flow rate. Moreover, this piping is supported by the piping rack provided in the high place in a power plant, for example.

  FIG. 8 is a perspective view showing an example of the state of the pipe 100 laid on the premises of the power plant E. In this power plant E, for example, a plurality of buildings are provided as facilities of the power plant, and a pipe 100 for sending water, drainage, chemicals, air, or the like is provided between the buildings using a steel frame or the like. It is laid at a high place by things. The pipe 100 is placed on a pipe rack R provided with a steel frame or the like, and the pipe 100 on the pipe rack R has an opening / closing control of a flow of water or the like flowing in the pipe 100 and a flow rate. A valve 200 for controlling is attached. A walkway W through which an operator passes is provided along the pipe 100 so as to be adjacent to the pipe 100. A fence H is provided on both sides of the walkway W along the walkway W for the safety of the operator.

  FIG. 9 is a view showing the valve 200 of FIG. 8, a plan view (a) and a front view (b). The valve 200 includes a connecting portion 201 mainly connected to the pipe 100, a valve main body portion 202 in which a valve body that controls a flow of water or the like is accommodated, a rotating shaft 203 for rotating a valve handle 204, A valve handle 204 for operating the flow of water or the like by rotating is provided, and two connecting portions 201 are respectively connected to the pipe 100. The valve 200 performs opening / closing control and flow rate control by rotating the valve handle 204.

  As shown in FIG. 8, the pipe 100 may be arranged at a position separated from the walkway W. And in the position where the valve 200 on the piping rack R is attached, the scaffold for an operator to approach the valve 200 is not provided. Therefore, when operating such a valve 200, the fence H of the walkway W is temporarily removed and a scaffold is installed up to the vicinity of the valve 200, and an operator approaches the valve 200 by the scaffold and operates the valve 200. After completion, the scaffold is removed and the fence H is provided again.

  In order to easily operate such a valve 200, a tool called “Wilkey” is known which is engaged with the valve handle 204 and applies a strong torque to the valve handle 204 using the lever principle. Further, although it is necessary to use a different Wilky key depending on the shape of the valve handle 204, a handle rotating tool that can be used regardless of the shape of the valve handle 204 is known (see, for example, Patent Document 1). .

JP 2008-142845 A

  By the way, since the Wilkey known conventionally is a tool which assists to operate a valve manually, it is inconvenient to operate the valve provided in the separated position. Further, the handle rotating tool described in Patent Document 1 can operate a valve at a position separated in the horizontal direction, but is provided at a position separated from the corridor W as shown in FIG. 8 in the height direction. It is unsuitable for operating the provided valves or operating the valves provided at positions sandwiching the fence H.

  Accordingly, the present invention provides a valve operating rod that can easily operate a valve provided at a position separated from an operator or a valve provided at a position sandwiching an obstacle such as a fence. The purpose is to do.

  In order to solve the above-mentioned problems, the invention of claim 1 is a rod-like operation rod main body provided with a handle on one end side, and a lock provided on the other end side of the operation rod main body and engaged with a valve. An operating body having a portion, and in a state where the locking portion is locked to the valve, the operating body is rotated by turning the handle to operate the valve, and a rotating shaft of the operating rod main body The valve operating rod is characterized in that the operating rod main body and the operating body are connected to each other so that the angle formed by the rotating shaft of the operating body can be freely changed.

  According to a second aspect of the present invention, in the valve operating rod according to the first aspect, the position of the locking portion is changeable.

  According to a third aspect of the present invention, in the valve operating rod according to any one of the first or second aspects, a slip stopper is provided in the locking portion.

  According to the first aspect of the present invention, a handle is provided on one end side of the operating rod main body, and a locking portion for locking to the valve is provided on the other end side. When the handle is turned, the operating body rotates to operate the valve. Therefore, the valve provided at the position separated from the operator can be operated by locking the locking portion on the other end side to the valve separated from the worker. In addition, since the angle formed by the rotating shaft of the operating rod main body and the rotating shaft of the operating body is variably connected, it is difficult for the worker on the walkway to change the posture, for example, between the worker and the valve. Even in the case where an obstacle such as a fence is provided between them, the valve can be easily operated without providing a scaffold to the valve.

  According to the invention of claim 2, since the position of the locking portion provided in the operating body is freely changeable, the locking portion is locked to the valve regardless of the shape of the valve. It becomes possible to do.

  According to the third aspect of the present invention, since the latching portion provided in the operating body is provided with the slip stopper, the latching portion is prevented from slipping off from the valve. Is securely locked against.

It is a perspective view which shows the outline of the valve operating rod 1 which concerns on Embodiment 1 of this invention. It is an expansion perspective view which shows the connection part 13 of FIG. It is an expansion perspective view which shows the operation body 30 of FIG. It is a perspective view which shows the state which operates the valve 200 using the valve operating rod 1 of FIG. It is an expansion perspective view which shows the operating body 30A of the valve operating rod which concerns on Embodiment 2 of this invention. It is an expansion perspective view which shows the operating body 30B of the valve operating rod which concerns on Embodiment 3 of this invention. It is an expansion perspective view which shows the operating body 30C of the valve operating rod which concerns on Embodiment 4 of this invention. 3 is a perspective view showing an example of a state of a pipe 100 laid on the premises of a power plant E. FIG. It is a figure which shows the valve 200 of FIG. 8, and is a top view (a) and a front view (b).

  The present invention will be described below based on the illustrated embodiments.

(Embodiment 1)
1 to 4 show a valve operating rod 1 according to Embodiment 1 of the present invention. FIG. 1 is a perspective view schematically showing the valve operating rod 1, FIG. 2 is an enlarged perspective view showing the connecting portion 13 of FIG. 1, and FIG. 3 is an enlarged perspective view showing the operating body 30 of FIG. It is. The valve operating rod 1 is a valve 200 for controlling the opening / closing of water or the like flowing in the pipe 100 and the flow rate by rotating the valve handle 204 from the operator, like the valve 200 shown in FIG. It is a device that operates at a separated position or through a fence H as shown in FIG. 9, and mainly includes an operating rod main body 10, a handle 20, and an operating body 30.

  The operating rod main body 10 is a main body portion of the valve operating rod 1 provided in a rod shape, and mainly includes a first rod-shaped portion 11, a second rod-shaped portion 12, and a connecting portion 13. The first rod-shaped portion 11 is a member formed in a rod shape having a substantially circular cross section, and a handle 20 is provided at one end, and the other end is coupled to the second rod-shaped portion 12 via a coupling portion 13. The second rod-shaped portion 12 is a member formed in a rod shape having a substantially circular cross section, and an operation body 30 is provided at one end, and the other end is coupled to the first rod-shaped portion 11 via the coupling portion 13. . The 1st rod-shaped part 11 and the 2nd rod-shaped part 12 are formed with metal members, such as stainless steel, for example.

  When the connection part 13 connects the connection angle of the 1st rod-shaped part 11 and the 2nd rod-shaped part 12 so that change is possible, and rotates the 1st rod-shaped part 11 in the arrow B direction of FIG. The second rod-shaped portion 12 is a member that is connected so as to rotate in the direction of arrow C, which is the same rotation direction, and is configured by, for example, a universal joint. As shown in FIG. 2, the connecting portion 13 is mainly composed of a first joint 131, a second joint 132, and a joint fitting 133.

  The first joint 131 is a member that extends in the form of two flat plates parallel to the tip of the first rod-shaped portion 11 and clamps the joint fitting 133. The second joint 132 is a member that extends in the form of two flat plates parallel to the tip of the second rod-shaped portion 12 and clamps the joint fitting 133 from the direction perpendicular to the direction in which the first joint 131 clamps. The joint fitting 133 is a member that connects the first joint 131 and the second joint 132, is sandwiched by the first joint 131, is rotatable about the clamping direction, and is sandwiched by the second joint 132. It is a member that can freely change the connection angle between the first rod-shaped portion 11 and the second rod-shaped portion 12 by being rotatable around the clamping direction.

  The handle 20 is a member that is fixed to one end of the first rod-shaped portion 11 and rotates the first rod-shaped portion 11. That is, for example, when the handle 20 is rotated in the direction of arrow A in FIG. 1, the first rod-shaped portion 11 is configured to rotate in the direction of arrow B, which is the same rotation direction. The handle 20 is formed of a metal member such as stainless steel.

  The operating body 30 is fixed to one end of the second rod-shaped portion 12, rotates with the rotation of the second rod-shaped portion 12, and engages with the valve handle 204 of the valve 200 as shown in FIG. A member that rotates 204. That is, when the 2nd rod-shaped part 12 rotates in the arrow C direction of FIG. 1, for example, the operation body 30 is comprised so that it may rotate in the arrow D direction which is the same rotation direction. As shown in FIG. 3, the operating body 30 mainly includes a base portion 31 and a locking portion 32. The base 31 is a disk-shaped member that is fixed to the second rod-shaped portion 12 and rotates with the rotation of the second rod-shaped portion 12. The locking portion 32 is a member that is locked to the valve. For example, as in the valve handle 204 in FIG. 9, there are an annular gripping portion and five support members that extend from the gripping portion toward the center. It is a member which latches to a support member. The locking portion 32 has a substantially cylindrical shape, and is on the same circumference centered on the axis of the second rod-shaped portion 12 on the opposite side of the surface where the base portion 31 is fixed to the second rod-shaped portion 12. For example, five are arranged at equal angular intervals.

  The number of the locking portions 32 may be changed according to the shape of the valve handle, the position on the base portion 31, and the shape. For example, the number may be changed in accordance with the number of support members of the valve handle, and it may be formed in a vertical body (for example, a conical shape) so that it can be easily locked to a valve handle having a different size.

  Next, the operation and the like of the valve operating rod 1 will be described below.

  4 is a perspective view showing a state where the operator M operates the valve 200 shown in FIG. 9 as an example, which is provided at a position where the worker M sandwiches the fence H from the corridor W using the valve operating rod 1 of FIG. FIG. First, the operator M moves the operating body 30 side of the valve operating rod 1 from the corridor W to the opposite side of the fence H, adjusts the connecting angle of the connecting portion 13, and places the operating body 30 on the valve handle 204. Then, the locking portion 32 is locked to the support member of the valve handle 204. Then, when the handle 20 is gripped and rotated, for example, in the direction of arrow A, the first rod-shaped portion 11 rotates in the direction of arrow B. When the first rod-shaped portion 11 rotates in the arrow B direction, the second rod-shaped portion 12 rotates in the arrow C direction via the connecting portion 13. When the second rod-shaped portion 12 rotates in the arrow C direction, the operating body 30 rotates in the arrow D direction. When the operating body 30 rotates in the direction of arrow D, the valve handle 204 also rotates in the direction of arrow D due to the locking of the locking portion 32, so that the valve 200 is operated. When the handle 20 is rotated in the direction opposite to the arrow A, the first rod-like portion 11, the second rod-like portion 12, and the operating body 30 are rotated in the opposite directions to the arrows B, C, and D, respectively. Since 204 also rotates in the direction opposite to the arrow D, the valve 200 is operated. Thereby, the worker M can operate the valve 200. Further, by adjusting the connection angle of the connection portion 13, the angle formed by the rotation axis of the handle 20 and the first rod-shaped portion 11 and the rotation axis of the second rod-shaped portion 12 and the operating body 30 can be freely changed. Can do.

  Thus, according to this valve operating rod 1, the handle 20 is provided at one end of the first rod-shaped portion 11, and the operating body 30 provided with the locking portion 32 at one end of the second rod-shaped portion 12, When the handle 20 is rotated, the first rod-like portion 11, the second rod-like portion 12, and the operating body 30 are rotated and the valve handle 204 of the valve 200 is operated. Even if is provided, the operator M can operate the valve 200. Further, by providing the connecting portion 13 that can change the connecting angle between the first rod-shaped portion 11 and the second rod-shaped portion 12, the rotation shaft and the second rod-shaped portion of the handle 20 and the first rod-shaped portion 11 are provided. 12 and the rotation axis of the operating body 30 can be freely changed. Therefore, when it is difficult for the worker M on the corridor W to change the posture, for example, an obstacle such as a fence H is sandwiched. Even if the valve 200 is provided at the position, the operator M can easily operate the valve 200 without providing a scaffold to the valve 200.

(Embodiment 2)
FIG. 5 is an enlarged perspective view showing an operating body 30A of the valve operating rod according to Embodiment 2 of the present invention. Similar to the valve operating rod 1 according to the first embodiment, the valve operating rod provided with the operating body 30A performs opening / closing control and flow rate control of water flowing in the pipe 100 by rotating the valve handle. It is a device that operates a valve to be performed over a remote position or over a fence H, and includes an operating body 30A instead of the operating body 30 shown in FIG. The operating body 30 </ b> A includes a locking portion 32 </ b> A and a groove 33 instead of the locking portion 32. Other configurations are the same as those of the valve operating rod 1 according to the first embodiment.

  The locking portion 32A is the same as the locking portion 32 according to the first embodiment in that it is a member locked to the valve, but is configured so that the position can be changed in the direction of arrow E along the groove 33. For example, five base portions 31 are formed in a substantially cylindrical shape on the opposite side of the surface fixed to the second rod-shaped portion 12. When one of the five locking portions 32A is moved in the direction of arrow E, the other four are similarly moved back and forth along the groove 33, and the second rod-shaped portion 32A It arrange | positions on the same periphery with respect to 12 axial centers. This is because, for example, a slide mechanism is provided in each of the grooves 33, and a link mechanism is provided so that the five slide mechanisms operate in conjunction with each other. Further, the locking portion 32A is rotatable, and is slidable in a predetermined position, and includes a lock mechanism that is fixed without being slid when rotated by a predetermined angle. For example, five grooves 33 are provided radially at equal angular intervals from the center of the base 31 in the radial direction. As a result, even if the valve handle has a different shape, it is possible to operate the valve by locking the locking portion 32A to the valve handle regardless of the shape of the valve handle.

(Embodiment 3)
FIG. 6 is an enlarged perspective view showing an operating body 30B of the valve operating rod according to Embodiment 3 of the present invention. Similar to the valve operating rod 1 according to the first embodiment, the valve operating rod including the operating body 30B performs opening / closing control and flow rate control of water flowing in the pipe 100 by rotating the valve handle. It is a device that operates a valve to be performed over a remote position or over a fence H, and includes an operating body 30B instead of the operating body 30 shown in FIG. The operation body 30 </ b> B includes a non-slip 34 in addition to the configuration of the operation body 30. Other configurations are the same as those of the valve operating rod 1 according to the first embodiment.

  The anti-slip 34 is a member that prevents the operating body 30B from slipping off the valve handle when the anti-slip 34 is locked to the valve handle. Attached to the tips of the five locking portions 32, respectively. This prevents the locking portion 32 from slipping off the valve handle, so that the locking portion 32 is securely locked to the valve handle.

(Embodiment 4)
FIG. 7 is an enlarged perspective view showing an operating body 30C of the valve operating rod according to Embodiment 4 of the present invention. Similar to the valve operating rod 1 according to the first embodiment, the valve operating rod provided with the operating body 30C controls the opening and closing of water flowing in the pipe 100 and the flow rate by rotating the valve handle. It is a device that operates a valve to be performed over a remote position or over a fence H, and includes an operating body 30C instead of the operating body 30 shown in FIG. The operating body 30C includes a locking portion 32C instead of the locking portion 32. Other configurations are the same as those of the valve operating rod 1 according to the first embodiment.

  The locking portion 32C is the same as the locking portion 32 according to the first embodiment in that it is a member locked to the valve. For example, a screw hole is provided in the base portion 31, and the locking portion 32C is provided with the locking portion 32C. A screw is provided, and the screw is configured to be detachable from the base 31 by screwing the screw into a screw hole of the base 31. The locking portion 32C shown in FIG. 7 has a conical shape so that it can be easily locked to valve handles of different sizes, but maintains a cylindrical shape or a state locked to the valve handle. There are a plurality of shapes such as a shape having irregularities so as to be easy, and each is configured to be exchangeable like an attachment. As a result, the number and shape can be freely changed in accordance with the shape of the valve handle, so that the valve 32 can be operated by locking the locking portion 32C to the valve handle regardless of the shape of the valve handle. Is possible.

  Although the embodiment of the present invention has been described above, the specific configuration is not limited to the above embodiment, and even if there is a design change or the like without departing from the gist of the present invention, Included in the invention. For example, in the above-described embodiment, the operating rod main body 10 is configured by the first rod-shaped portion 11, the second rod-shaped portion 12, and the connecting portion 13, but the second rod-shaped portion 12 is omitted and connected. The unit 13 may be configured to be directly connected to the operation body 30.

  Moreover, although the connection part 13 was comprised so that the angle | corner which the rotation axis of the handle | steering-wheel 20 and the 1st rod-shaped part 11 and the rotation axis of the 2nd rod-shaped part 12 and the operation body 30 could change freely. You may comprise so that the angle which the rotation axis of the handle | steering-wheel 20 and the 1st rod-shaped part 11 and the rotation axis of the 2nd rod-shaped part 12 and the operation body 30 may change only in one perpendicular surface.

  In the second embodiment of the present invention, five grooves 33 are provided in the circumferential direction from the center of the base 31. For example, the grooves 33 are provided spirally from the center of the base 31 so that the locking portion 32A moves in a spiral. You may comprise.

  Further, in the third embodiment of the present invention, the anti-slip 34 is made of an elastic resin such as rubber, but may be configured to be knurled to provide fine irregularities on the surface of the locking portion 32. . Thereby, it is possible to prevent the locking portion 32 from slipping off the valve handle while preventing the slip stopper 34 in the third embodiment of the invention from coming off from the locking portion 32.

DESCRIPTION OF SYMBOLS 1 Valve operating rod 10 Operating rod main body 11 1st rod-shaped part 12 2nd rod-shaped part 13 Connection part 131 1st coupling 132 2nd coupling 133 Joint metal fitting 20 Handle 30, 30A, 30B, 30C Operating body 31 Base 32, 32A 32C Locking part 33 Groove 34 Non-slip 100 Piping 200 Valve 201 Connecting part 202 Valve body part 203 Rotating shaft 204 Valve handle H Fence W Walkway

Claims (3)

A rod-shaped operation rod body provided with a handle on one end side;
An operating body provided on the other end side of the operating rod main body, and having an engaging portion that engages with a valve;
With the locking portion locked to the valve, turning the handle turns the operating body to operate the valve, and an angle formed by the rotating shaft of the operating rod body and the rotating shaft of the operating body. The operation rod main body and the operation body are connected to each other in a freely changeable manner,
A valve operating rod characterized by that. The position of the locking portion is freely changeable,
The valve operating rod according to claim 1. Non-slip is provided in the locking portion,
The valve operating rod according to any one of claims 1 and 2.

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