JP2010060232A - Residual liquid drain apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a residual liquid drain apparatus, surely preventing water leakage accident and safely and surely performing drain work. <P>SOLUTION: In this residual liquid drain apparatus, when a drain hook 36 is pulled up, an operating rod 35 is pulled up, a lever member 27 is rotated counterclockwise, and a valve pressing part pushes up a valve element of a hoot valve 7 to enter the open state. Thus, water flows out into a storing container 13. When the drain hook 36 is released and returned to its original place, tensile force is released, the operating rod 35 is lowered, the lever member 27 is rotated clockwise, the push-up force of the valve pressing part is released, the valve element blocks up a valve hole to return to the closed state. Thus, outflow of water to the storing container 13 is stopped. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a stored liquid extraction device used for extracting a stored liquid such as water accumulated in a pipe, for example.

In the renovation work for air conditioning equipment in buildings, when equipment such as fan coil units or pipes installed in the ceiling or floor (below) or pipes are removed, replaced, moved, etc., It is necessary to drain water. When draining water inside the device, water may be drained via the drain valve attached to the device or the drain valve of the connection pipe, or the connection pipe such as a tube or fan coil may be cut to drain the water (for example, , See Patent Document 1). Moreover, in draining water in a pipe, water may be drained through a drain valve provided in the middle of the pipe, or the pipe may be cut to drain water. When draining water through the drain valve, for example, the drain valve provided in the pipe is opened and water is discharged into the container.
JP 2001-21207 A

  However, when draining work through the drain valve, the worker may leave the place with the drain valve open, during which time the container overflows and leaks. May end up. Workers are instructed not to leave the workplace during drainage work, and to close the drain valve if they should leave, but it is still difficult to eliminate the water leakage caused by this human error. It is. Most of the renovation work is carried out while the building is in use (during business), so the impact at the time of a water leakage accident is enormous, and drastic measures are desired.

  An object of the present invention is to solve the above-mentioned problems, and to provide a liquid collecting device that can reliably prevent a water leakage accident and perform a draining operation safely and reliably.

  In order to solve the above-mentioned problem, the invention of claim 1 is a reservoir drainage device for draining a reservoir liquid in a pipe, and is connected to the pipe, and a discharge pipe through which the reservoir liquid flows, A valve device attached to the discharge pipe for opening and closing the flow path of the stored liquid; valve operation means for opening and closing the valve apparatus; and support means for supporting the discharge pipe and the valve operation means. The valve device is characterized in that the valve operating means continues the open state by continuing the open operation.

  A second aspect of the present invention is the liquid draining apparatus according to the first aspect, wherein the valve device has a valve hole and a displaceable valve body arranged along the flow path, and the valve operation When a predetermined external force is applied to the valve body by the opening operation of the means, the valve body is displaced away from the valve hole to open the flow path, and when the external force is removed, the valve body is Displacement is made so as to close the valve hole, and the flow path is closed.

  The invention of claim 3 is the reservoir drainage device according to claim 1 or 2, wherein the reservoir container having one end opening for storing the reservoir liquid discharged from the discharge pipe, and the opening so as to close the opening. It is detachably attached to the storage container, and has a lid portion that also serves as the support means.

  A fourth aspect of the present invention is the pooled liquid extraction apparatus according to the third aspect, wherein the liquid level detecting means detects the liquid level of the pooled liquid discharged to the storage container, and based on the detected liquid level. And an alarm output means for outputting an alarm.

  According to the first aspect of the present invention, the valve device continues the opening operation by the valve operation means continuing the opening operation, so that the stored liquid can be removed safely and reliably.

  According to the invention of claim 2, when a predetermined external force is applied to the valve body by the opening operation of the valve operating means, the valve device is displaced so as to separate from the valve hole, and the flow path is opened. When the external force is removed, the valve body is displaced so as to close the valve hole and closes the flow path.Therefore, unless the opening operation is continued, the liquid is not removed and the unintended Extraction of the liquid can be prevented. Therefore, it is possible to prevent the stored liquid from overflowing from the storage container.

  According to the third aspect of the present invention, since the lid that also serves as the support means is detachably attached to the storage container, for example, by preparing a plurality of storage containers, a relatively large amount of storage liquid can be quickly removed. And it can be done easily.

  According to the invention of claim 4, when the warning output means outputs a warning sound at a predetermined liquid level or higher, for example, it is possible to easily know the timing of stopping the opening operation or replacing the storage container.

  Next, embodiments of the present invention will be described in detail with reference to the drawings.

(Embodiment 1)
FIG. 1 is a diagram showing a method for connecting a water drainer to a pipe of an air conditioning facility according to Embodiment 1 of the present invention. As shown in FIG. 1, the drainage device 1 includes a main valve 3 and a fan coil unit 2 in a pipe (for example, a cold / hot water outlet pipe) between the air conditioner and the fan coil unit 2. It is used when water accumulated in the pipe 5 is extracted through a drain valve 4 disposed in the middle of the pipe 5.

  FIG. 2 is a diagram schematically illustrating the configuration of the drainage device, and FIGS. 3 and 4 are perspective views illustrating the configuration of the drainage device. As shown in FIGS. 1 to 4, the drainage device 1 includes a discharge pipe 6 connected to the drainage valve 4, a foot valve 7 attached to the end of the discharge pipe 6, and an opening / closing operation of the foot valve 7. A valve operation unit 8 for performing, a water level detection unit 9 attached to a predetermined part of the discharge pipe 6, an alarm output unit 11 for outputting an alarm when the water is full, the discharge pipe 6, the valve operation unit 8 and an alarm output unit A basin-shaped lid 12 for supporting and attaching 11, a substantially cylindrical storage container 13 for storing water discharged from the foot valve 7, and an annular fastening for fixing the lid 12 to the upper end of the storage container 13 And a member 14.

  As shown in FIGS. 2 and 3, the discharge pipe 6 has a pipe connection part 16 whose tip is formed in an L shape and is in a horizontal shape. In this embodiment, the height from the bottom of the storage container 13 to the pipe connection portion 16 is set to about 1 m, so that water can easily flow in regardless of the position of the connection partner (for example, the position from the floor surface). Designed to. Therefore, it is possible to cope with the case where the drain valve 4 is in the ceiling or under the floor using the same drain device 1.

  FIG. 5 is a diagram showing the configuration of the foot valve of the water draining device. As shown in FIG. 5, the foot valve 7 has a cylindrical valve case 18 and a bottomed strainer 21 formed with elongated holes 19, 19,... And is disposed near the bottom of the storage container 13. Is done. In the valve case 18, a valve wall 22 is formed at the outlet end (boundary portion with the strainer 21), and a partition wall portion 24 in which a valve seat 23 is formed is disposed. A valve body 26 is arranged so as to be rotatable around. The lever member 27 is attached so as to be rotatable around the rotation shaft portion 28. The lever member 27 has a valve pressing portion 29 whose tip pushes up the valve body 26, and an operated portion 31 to which an operating rod 35 of the valve operating portion 8 is attached via a coupling member 33.

  When the operating rod 35 is pulled up, the lever member 27 rotates counterclockwise in FIG. 5, and the valve pressing portion 29 pushes up the valve body 26 to rotate counterclockwise around the rotation shaft portion 25. The drainage channel in the draining device 1 for draining water is opened. When the pulling force is released and the operation rod 35 is lowered, the lever member 27 rotates clockwise in FIG. 5, the pushing force of the valve pressing portion 29 is released, and the valve pressing portion 29 is rotated by the rotating shaft portion 25. The valve body 26 closes the valve hole 22 and returns to the closed state.

  As shown in FIGS. 2 to 5, the valve operation unit 8 includes the lever member 27 described above, an operation rod 35 having a lower end portion coupled to the lever member 27 via a coupling member 33, and an upper end portion of the operation rod 35. And a drainable hook 36 that can be gripped. As shown in FIGS. 2 to 4, the water level detection unit 9 is disposed at a predetermined height in the storage container 13 via a support member 38 fixed to the discharge pipe 6, and can move up and down according to the water level. A float 39 and a float switch.

  The alarm output unit 11 includes, for example, a buzzer, an electromagnetic relay, and a power source (battery), and the buzzer sounds when the float switch is turned on. In addition to the hole through which the discharge pipe 6 is inserted and the hole through which the operation rod 35 is inserted, the lid 12 is formed with a viewing window 41 for making the water level visible. The fastening member 14 is fastened by pressing the lid portion 12 against the storage container 13 from the side and above by a spring force.

  Next, a draining method using the draining device 1 having the above configuration will be described. 6 is a diagram for explaining the configuration and function of the drainage device, FIG. 7 is a diagram for explaining the configuration and function of the foot valve of the drainage device, and FIG. 8 is a drainage method using the drainage device. It is a figure for demonstrating.

  First, as shown in FIG. 1, the main valve 3 is closed and the drain valve 4 is opened. At this time, as shown in FIGS. 2 and 5, the foot valve 7 is closed. Next, as shown in FIG. 3, the worker grasps the water draining hook 36 and pulls it up. When the draining hook 36 is pulled up, the operating rod 35 is pulled up vertically, the lever member 27 rotates counterclockwise as shown in FIGS. 6 and 7, and the valve pressing portion 29 is moved to the valve element 26. Is pushed up and rotated counterclockwise around the rotation shaft portion 25 to open the drainage flow path in the water draining device 1 for draining water. Thereby, water flows into the storage container 13 from the long hole portions 19, 19,.

  When water extracted from the pipe 5 flows into the storage container 13 and is stored, the water level rises and reaches a predetermined water level, the float switch of the water level detection unit 9 is turned on, and the buzzer of the alarm output unit 11 is turned on. It rings. When the operator looks at the water level from the viewing window 41 or judges that the buzzer sounds and the water is full, or judges that the inflow of water has stopped, the worker releases the draining hook 36 and returns it to its original state.

  When the worker releases the drain hook 36 and returns it to the original position, the pulling force is released, the operation bar 35 is lowered, the lever member 27 rotates clockwise, and the pushing force by the valve pressing portion 29 is released. The valve body 26 rotates clockwise around the rotation shaft portion 25, closes the valve hole 22, and returns to the closed state. Thus, the outflow of water to the storage container 13 is stopped.

  If water still remains in the pipe 5, the worker once closes the drain valve 4 and puts the lid 12 on the spare storage container 13 prepared in advance as shown in FIG. 8. The drainage valve 4 is opened again and the drainage hook 36 is pulled to continue draining. After draining, the drain valve 4 is closed and the drain device 1 placed on the carriage 43 is moved.

  In addition, after draining is completed, the worker observes whether the water has leaked from the main valve 3 by observing whether the water is constantly flowing in even if the amount is small by observing the change in the water level. May be verified.

  The drainage method from the cold / hot water outlet pipe has been described above as the drainage target pipe, but the same applies to the cold / hot water return pipe.

  Thus, according to the configuration of this embodiment, the foot valve 7 is not opened unless the worker continues to pull the draining hook 36 manually, that is, unless the worker is in the field and manually operates, When the hand is released, the foot valve 7 is closed, so that water leakage can be reliably waterproofed. Accordingly, the present invention is particularly suitable when draining using the drain valve 4.

  Further, since the buzzer outputs a warning sound when the water is full, for example, it is possible to know the replacement timing of the storage container 13. Moreover, since the height of the piping connection part 16 was set appropriately, versatility can be improved. Moreover, the leak state (deterioration state) of the main valve 3 can be verified.

(Embodiment 2)
FIG. 9 is a diagram schematically showing a configuration of a drainage device according to Embodiment 2 of the present invention. The difference between the configuration of this embodiment and the configuration of Embodiment 1 described above is that an operation wire is used instead of the operation rod.

  As shown in FIG. 9, the valve operating portion 8A of the drainage device 1A of this embodiment includes a lever member 27A, an operation wire 44 whose lower end portion is coupled to the lever member 27A via a coupling member 33, and an operation wire. And a grippable drainage hook 36 attached to the upper end of 44. At the time of draining work, the worker pulls the pulling direction by changing the direction as appropriate depending on the situation at the site, such as diagonally upward and sideways, in addition to vertically upward.

  According to the configuration of this embodiment, substantially the same effect as that of the first embodiment described above can be obtained. In addition, the pulling direction is not limited to the vertically upward direction, and can be appropriately changed according to the situation at the work site.

  The embodiments of the present invention have been described in detail with reference to the drawings. However, the specific configuration is not limited to these embodiments, and the design can be changed without departing from the gist of the present invention. Is included in the present invention. For example, in the above-described embodiment, the case where the present invention is applied at the time of renovation work has been described. In addition to air conditioning equipment piping, it can also be applied to draining piping such as pump equipment. Moreover, it can apply to extraction of arbitrary liquids and solutions other than water as a reservoir liquid. Moreover, although the case where the float was used in the water level detection part was described, not only this but an electrode rod etc. may be used. A plurality of floats may be arranged along the vertical line.

  Moreover, although the foot valve was described near the bottom in the storage container, the foot valve is not limited to this and can be disposed at any position of the discharge pipe. Further, an electromagnetic valve may be used instead of the foot valve. Here, the worker may be in an open state only when the operator continues to press the operation button, and may be in a closed state when released. Moreover, when using two storage containers, you may make it switch, for example using a three-way valve.

  Moreover, although the case where the drainage device is used on a carriage has been described, the carriage may be dedicated, or the storage container may be fixed. A caster may be attached to the bottom of the storage container. Alternatively, it may be placed on a pallet and transported by a forklift.

  Further, the connection with the other party at the pipe connection portion may be a one-touch connection via a coupler, in addition to a connection by screwing. Moreover, you may provide a drain outlet in a storage container. Moreover, you may comprise so that a storage container may be discarded and it discharges | emits to a drainage tank (drainage groove).

  In addition to pipes in general buildings, it can also be applied to draining the accumulated liquid of pipes at various plants.

It is a figure which shows the connection method to the piping of the air-conditioning equipment of the water draining apparatus by Embodiment 1 of this invention. It is a figure which shows schematically the structure of the same draining device. It is a perspective view which shows the structure of the same drain apparatus. It is a perspective view which shows the structure of the same drain apparatus. It is a figure which shows the structure of the foot valve of the water draining apparatus. It is a figure for demonstrating the structure and function of the drain apparatus. It is a figure for demonstrating the structure and function of the foot valve. It is a figure for demonstrating the draining method using the same draining apparatus. It is a figure which shows schematically the structure of the drainage apparatus by Embodiment 2 of this invention.

Explanation of symbols

1,1A Drainage device (reservoir drainage device)
6 Discharge pipe 7 Foot valve (valve device)
8,8A Valve operation part (valve operation means)
9 Water level detector (Liquid level detector)
11 Alarm output section (alarm output means)
12 Lid (support means)
13 Storage container 22 Valve hole 26 Valve body

Claims (4)

A liquid draining device for draining liquid in a pipe,
A discharge pipe connected to the pipe and through which the stored liquid flows, a valve device attached to the discharge pipe for opening and closing the flow path of the stored liquid, and a valve operating means for opening and closing the valve apparatus And a support means for supporting the discharge pipe and the valve operating means, and the valve device continues the open state when the valve operating means continues the opening operation. .   The valve device has a valve hole and a displaceable valve body arranged along the flow path, and when a predetermined external force is applied to the valve body by an opening operation of the valve operating means, the valve body is Displacement away from the valve hole to open the flow path, and when the external force is removed, the valve body is displaced to close the valve hole to close the flow path. The pooled liquid extraction device according to claim 1.   A storage container having an opening at one end for storing the stored liquid discharged from the discharge pipe, and a lid that is detachably attached to the storage container so as to close the opening and also serves as the support means. The pool liquid extracting device according to claim 1 or 2.   4. A liquid level detection means for detecting a liquid level of the liquid stored in the storage container, and an alarm output means for outputting an alarm based on the detected liquid level. The liquid draining device described in 1.

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