JP2005030563A - Portable opening/closing device for stop valve or the like - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a portable opening/closing device for a stop valve or the like which has a simple constitution, can be used even in a narrow place by easily bringing it to the place, and moreover, has no problem such as noises and an exhaust gas. <P>SOLUTION: The opening/closing device is provided with a hydraulic motor 7, a driving part 10, which is driven by the hydraulic motor 7 and rotationally drives a shaft 5 for opening/closing, and a reaction force receiving part 10, to which a shaft 6 for receiving reaction force is inserted and which supports it. The shaft 5 for opening/closing and the shaft 6 for receiving reaction force are formed so as to have the same diameter. Both shafts 5, 6 are also formed so as to be mutually connectable. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a portable water control valve opening and closing device, and more specifically, a portable water control valve opening and closing device that opens and closes a water pipe water control valve and other embedded valves buried underground. It is about.

  The operation of opening and closing the control pipes of water pipes (main pipes) buried under the ground in an emergency or construction is often done manually, especially in cities, where there are many control valves. Moreover, since a considerable force is required for opening and closing, the work is performed by a plurality of workers in turn. Therefore, the work takes time and cost, and the efficiency is poor.

In view of this, an apparatus that mechanically opens and closes this underground buried water control valve has been proposed (utility model registration No. 3034461). In this system, a gasoline engine is used as a drive source, and a water control valve is opened and closed by rotating a universal shaft with a coupling fitting at the tip engaged with the water control valve via a flexible shaft.
Utility Model Registration No. 3034461

  In the above conventional water control valve opening and closing device, there is a problem of noise and exhaust gas because a gasoline engine is used as a drive source, and power is transmitted through a flexible shaft. In addition, there is a limit to the distance from the opening / closing part at the end that opens and closes the water control valve, and the use condition is restricted because the power part cannot be brought into the narrow part.

  Since the conventional water control valve opening and closing device has such a problem, the present invention does not have such a problem, that is, the structure is simple, and it can be easily brought in even in a narrow place. It is an object of the present invention to provide a portable water control valve and other opening / closing device that can be used and that is free from noise and exhaust gas problems.

  The present invention includes a hydraulic motor, a drive unit that is driven by the hydraulic motor to rotationally drive the opening / closing shaft, and a reaction force receiving unit that inserts and supports the reaction force receiving shaft. The above-mentioned problems have been solved by a portable water control valve opening and closing device characterized in that the force receiving shaft has the same diameter and the two shafts can be connected to each other.

  Preferably, the formation direction of the opening / closing shaft insertion hole and the formation direction of the reaction force receiving shaft insertion hole are orthogonal to each other, and the rotational output of the hydraulic motor can be changed.

  The present invention has a simple configuration, and by extending the high pressure hose for supplying hydraulic oil, it can be easily brought in and used even in a confined space, and has no problems of noise and exhaust gas. An opening / closing device such as a water control valve can be provided. In particular, when the water control valve or the like is in a position where the opening / closing shaft does not reach, there is an advantage that the reaction force receiving shaft can be added and used.

  Preferred embodiments of the present invention will be described with reference to the accompanying drawings. FIG. 1 is a perspective view showing a configuration of a portable water control valve opening / closing device according to the present invention. The device 1 is connected to a hydraulic controller 4 via a pair of high-pressure hoses 2, 3, and an opening / closing shaft 5. Then, the reaction force receiving shaft 6 is inserted in an orthogonal state.

  The hydraulic controller 4 controls hydraulic pressure adjustment, flow rate adjustment, and forward / reverse switching. The hydraulic oil controlled by the hydraulic controller 4 is sent to the hydraulic motor 7 constituting the opening / closing device 1 via the high-pressure hoses 2 and 3, and the hydraulic motor 7 operates.

  Next, the details of the switchgear 1 will be described with reference to FIGS. The opening / closing device 1 includes the hydraulic motor 7, a transmission unit 8 that transmits the output of the hydraulic motor 7, a driving unit 9 that rotationally drives the opening / closing shaft 5 with the rotational force transmitted by the transmission unit 8, and a reaction force receiver. And a reaction force receiving portion 10 that supports the shaft 6 for use.

  The transmission unit 8 includes a pair of input gears 13 and 14 having a large diameter and a small diameter that are fixed to the output shaft 12 of the hydraulic motor 7 that extends into the casing 11. A drive shaft 15 is arranged in parallel with the output shaft 12 and is supported between the side walls of the casing 11.

  The drive shaft 15 has a spline 17 in a part thereof, and a composite driven gear 20 in which a pair of driven gears 18 and 19 having a large diameter and a small diameter are integrated is installed. The composite driven gear 20 is movable in the axial direction of the drive shaft 15 by spline coupling with the spline 17, the large diameter driven gear 18 meshes with the small diameter input gear 14 at one moving end, and the other moving end. , The small-diameter driven gear 19 meshes with the large-diameter input gear 13.

  A locking groove 21 is provided on the outer end surface of the driven gear 19, and a locking plate 23 attached to the tip of the transmission shaft 22 is engaged therewith. The transmission shaft 22 is supported on the side wall of the casing 11 so as to be able to advance and retreat, and an operation knob 24 is attached to an end located outside the casing 11. When the transmission shaft 22 is advanced and retracted by holding the operation knob 24, the composite driven gear 20 is pulled as the transmission shaft 22 advances or retracts because the engagement plate 23 is engaged with the engagement groove 21. , And is moved along the spline 17.

  Thus, by moving the composite driven gear 20, the combination of the input gears 13 and 14 and the driven gears 18 and 19 can be changed, so that the driving speed can be changed. The forward / backward operation of the transmission shaft 22 is performed by loosening the bolt 25.

  A worm gear 27 is fixed to the drive shaft 15, and a worm wheel 28 pivotally supported between the upper and lower surfaces of the end portion of the casing 11 is engaged with the drive shaft 15 (see FIGS. 3 and 5). The rotation shaft of the worm wheel 28 is provided with an opening / closing shaft insertion hole 29 through which the opening / closing shaft 5 is inserted.

  The reaction force receiving portion 10 is configured by providing a reaction force receiving shaft insertion hole 31 on the outer end surface of the casing 11 for inserting the reaction force receiving shaft 6 in the horizontal direction. The diameter of the reaction force receiving shaft insertion hole 31 is the same as the diameter of the opening / closing shaft insertion hole 29. On the opposite side of the casing 11 from the reaction force receiving portion 10 installation side, a handle 33 for carrying is installed.

  The opening / closing shaft 5 inserted into the opening / closing shaft insertion hole 29 and the reaction force receiving shaft 6 inserted into the reaction force receiving shaft insertion hole 31 have the same diameter and can be connected to each other. FIG. 7 shows a joint bar 35 used for the connection. One half of the joint bar 35 is inserted into the opening / closing shaft 5 and the other half is inserted into the reaction force receiving shaft 6. .

  The joint bar 35 has a partition wall 36 in the middle, and means for preventing the joint bar 35 from coming off from the shafts 5 and 6 into which the joint bar 35 is inserted is installed. The illustrated retaining means is a fixing bolt 37 which is screwed into the screw hole 38 through the shafts 5 and 6. Further, the retaining means may be a ball stopper that is biased by a spring, a part of which protrudes from the surface of the joint bar 35 and is submerged below the surface when pressed against the spring pressure. .

  FIG. 8 shows an example of the shape of the opening / closing shaft 5 and the reaction force receiving shaft 6, and a capt 40 that engages with the water control valve is installed at one end of the opening / closing shaft 5. A plurality of reaction force receiving shafts 6 having different lengths are usually prepared. Reference numeral 41 denotes a collar fitted to the opening / closing shaft 5 in order to prevent the opening / closing shaft 5 from dropping from the opening / closing shaft insertion hole 29 (see FIG. 3).

  When the opening / closing device 1 such as a water control valve having the above-described configuration is used, the opening / closing device 1 is placed on a manhole, the opening / closing shaft 5 inserted into the opening / closing shaft insertion hole 29 is lowered, and the turnbuckle 40 is controlled by water. Engage with the valve. Next, the reaction force receiving shaft 6 inserted through the reaction force receiving shaft insertion hole 31 is fixed to a car bed, a tire, a peripheral portion, or the like by an appropriate method such as fixing or binding with a scissor vise. Then, the hydraulic controller 4 is started to operate the hydraulic motor 7.

  At this time, the hydraulic motor 7 is preferably operated so as to alternately repeat forward rotation and reverse rotation. With the operation of the hydraulic motor 7, the water control valve is gradually opened and closed through the open / close shaft 5 without difficulty. The reaction force generated at that time is received by the reaction force receiving shaft 6.

  When the length of the opening / closing shaft 5 is insufficient and the turnbucks 40 do not reach the water control valve, the reaction force receiving shaft 6 may be connected via the joint bar 35 or the like. This is possible because the opening / closing shaft 5 and the reaction force receiving shaft have the same diameter. When the shafts 5 and 6 are connected as described above, the reaction force receiving shaft 6 is inserted into the opening / closing shaft insertion hole 29.

  The above description mainly relates to the opening and closing of water control valves for water mains buried underground, but it goes without saying that this device can be used to open and close valves installed in various other narrow places. Absent.

It is a perspective view of opening and closing devices, such as a water control valve, concerning the present invention. It is a cross-sectional view of an opening and closing device such as a water control valve according to the present invention. It is a longitudinal cross-sectional view of opening and closing devices such as a water control valve according to the present invention. It is a side view of an opening and closing device such as a water control valve according to the present invention. It is a longitudinal cross-sectional view of the short direction of opening and closing devices, such as a water control valve, concerning the present invention. It is a longitudinal cross-sectional view of the short direction of opening and closing devices, such as a water control valve, concerning the present invention. It is a figure which shows the structural example of the joint bar for connecting a shaft. It is a figure which shows the example of a shape of the shaft used in opening / closing apparatuses, such as a water control valve which concerns on this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Opening / closing device 2 High pressure hose 3 High pressure hose 4 Hydraulic controller 5 Opening / closing shaft 6 Reaction force receiving shaft 7 Hydraulic motor 8 Transmission portion 9 Driving portion 10 Reaction force receiving portion 11 Casing 12 Output shaft 13 Input gear 14 Input gear 15 Driving shaft 17 spline 18 driven gear 19 driven gear 20 compound driven gear 21 locking groove 22 transmission shaft 23 locking plate 24 operating knob 25 bolt 27 worm gear 28 worm wheel 29 opening / closing shaft insertion hole 31 reaction force receiving shaft insertion hole 33 handle 35 Joint bar 36 Partition wall 37 Fixing bolt 38 Screw hole 40 Kabuto 41 Color

Claims (3)

  A hydraulic motor; a drive unit that is driven by the hydraulic motor to rotationally drive the opening / closing shaft; and a reaction force receiving unit that inserts and supports the reaction force receiving shaft, the opening / closing shaft and the reaction force receiving shaft. , And the both shafts can be connected to each other.   The opening / closing device such as a portable water control valve according to claim 1, wherein a forming direction of the opening / closing shaft insertion hole is orthogonal to a forming direction of the reaction force receiving shaft insertion hole.   The opening / closing device for a portable water control valve or the like according to claim 1 or 2, wherein the rotation output of the hydraulic motor is variable.

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