JPH0894112A - Implement used for injection of water into drain pipe for air conditioning - Google Patents

Abstract

PURPOSE: To obtain an implement used at the time of injection of water into a drain pipe for air conditioning, e.g. an implement which enables easy injection of water into the drain pipe for air conditioning on the occasion of conducting periodical cleaning of the drain pipe for air conditioning, a flow test thereof after fitting of a piping, etc. CONSTITUTION: An implement 1 for injection of water comprising a pipe body 5 formed of a transparent body of which one end part is opened to be a connection port 4 connected removably with a drain pipe 2 and the other end closed, a pipe-shaped water injection port 6 which is formed in the outer peripheral part at the virtually middle position in the axial direction of the pipe body 5 and to which a hose for injection is connected removably, a pipe-shaped injection port 8 for a chemical agent for cleaning the drain pipe which is formed in the outer peripheral part near the closed end of the pipe body 5 so that it can be closed by a cap 7, and a bracket 9 for reinforcement and support which is fixed on the outer peripheral surface of the pipe body 5, is provided.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device used when injecting water into an air conditioning drain pipe, and in particular to injecting water into an air conditioning drain pipe when performing periodic cleaning of the air conditioning drain pipe or performing a running water test after pipe installation. The present invention relates to a device used for performing a water filling test and a device for performing a full water test when pouring water.

[0002]

2. Description of the Related Art A drain pipe for discharging a drain discharged from a heat exchanger is connected to an air conditioner such as a cooling device installed in a building such as a building. It is necessary to confirm whether such a drain pipe is properly attached when installed and whether it is clogged.

After installation, it is necessary to perform regular cleaning. Therefore, at the time of installing the drain pipe, flush the drain pipe with water to determine whether or not the water is flowing from the air conditioner.
After confirming that there is no water leak site and after installing the drain pipe, the drain pipe is cleaned by pouring water, detergent, etc. into the drain pipe. By the way, in the running water test of such a drain pipe or when cleaning the drain pipe, conventionally, a hose is connected to the drain pipe and water is flowed from the hose,
Alternatively, water is supplied to the drain pipe from a kettle or the like.

[0004]

However, in such a conventional water injection method, that is, in the method of connecting the hose to the drain pipe and flowing the water from the hose, the hose is connected to each of the many drain pipes. Laborious work is required, and the workability is inferior. Further, the method of supplying water from the kettle or the like to the drain pipe requires much more labor and is extremely inefficient.

Further, in the conventional water injection method, the situation of flowing water to the drain pipe is completely unknown. Also, due to the position of the water inlet of the drain pipe, it may not be possible to connect a hose to the drain pipe, or it may not be possible to supply water to the drain pipe from a kettle or the like, and it may be difficult to inject water into the drain pipe. It was On the other hand, with the conventional water injection method, the fullness test of the drain pipe cannot be performed.

In view of the above-mentioned conventional problems, the present invention is a device for easily injecting water into an air conditioning drain pipe when performing periodic cleaning of the air conditioning drain pipe or performing a running water test after pipe installation. It is an object of the present invention to provide a device that can easily perform a full water test at the time of water injection.

[0007]

Therefore, the invention according to claim 1 is used at the time of water injection of the air conditioning drain pipe connected to the upstream end of the air conditioning drain pipe to which the drain part of the air conditioning equipment is connected. Which is a device made of a transparent body, one end of which is opened to form a connection port that can be freely attached to and detached from the drain pipe, and the other end of which is closed, and an outer periphery of the pipe body at a substantially intermediate position in the axial direction. -Shaped tubular water injection port formed in the above-mentioned part, to which a water injection hose is detachably connected, and a tubular injection of a drain pipe cleaning agent which is formed in the outer peripheral portion near the closed end of the pipe body and which can be freely opened and closed by a cap The mouth was composed.

According to the second aspect of the present invention, there is provided a device used at the time of pouring water of the air conditioning drain pipe interposed at the downstream end of the air conditioning drain pipe to which the drain portion of the air conditioner is connected, and the both ends thereof are provided. Is a tubular body opened as much as possible to be a connection port that can be freely attached to and detached from the drain pipe, a tubular full water confirmation window formed on the outer peripheral portion of the tubular body at a substantially intermediate position in the axial direction, and the confirmation window. A transparent plate stretched and an on-off valve that opens and closes a portion on the water injection downstream side of the confirmation window inside the pipe body,
It was composed including.

[0009]

In the invention according to claim 1, the tubular water injection port is opened. Next, for example, in a building or the like, one end of a water injection hose drawn from a hose reel is connected to a tap of a water supply in a washroom or the like, and the water injection hose is connected to a tubular water injection port.
This completes the preparation for water injection.

When the faucet is opened, water is supplied into the pipe body through the water injection hose and circulates from the pipe body to the drain pipe, and a running water test after the pipe is attached and water injection at the time of regular cleaning are executed. be able to. The running water condition is checked by visually observing the transparent pipe. Further, at the time of regular cleaning, the tubular charging port may be opened and the drug may be charged from here.

According to the device having such a structure, the water supply hose can be easily connected to easily supply water to each drain pipe.
It does not require much labor, is efficient, and because the pipe body is made transparent, it is possible to easily visually check the running water status to the drain pipe, and it is possible to handle the water injection inlet position of any drain pipe. Can be used. In the invention described in claim 2, the drain pipe is not closed by keeping the on-off valve open during the normal time when water is not injected into the drain pipe.

On the other hand, the opening / closing valve is closed when the water is poured into the drain pipe. As a result, the drain pipe is closed at its downstream end. In this state, for example, when water is injected into the drain pipe using the device according to claim 1, the drain pipe is filled with water. Therefore, this full state may be visually confirmed from a tubular full water confirmation window.

Also, a running water test and a running water condition at the time of regular cleaning are checked from a tubular full water check window. Further, a sterilizing agent is poured into the drain pipe with the on-off valve closed, and the drain pipe is stopped for a certain period of time to sterilize the drain pipe. According to the device having such a configuration, a full water test of the drain pipe can be easily performed, and furthermore, a running water test and a running water condition at the time of regular cleaning can be easily confirmed. Further, the drain pipe can be easily sterilized.

[0014]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a cross-sectional view showing a water injection device for an air conditioning drain pipe as an example of a device used when injecting water for an air conditioning drain pipe according to claim 1, and FIG. 2 is a perspective view showing its use state. Is.

This water injection device 1 is, as shown in FIG.
Air conditioning drain pipe 2 to which the air conditioning equipment drain is connected
Is connected to the upstream end of the. The air-conditioning drain pipe 2 is provided for each floor and is connected to the drain vertical main pipe 3, respectively.
In FIG. 1 and FIG. 2, a water injection device 1 has a tubular body 5 made of a transparent body, one end of which is opened as much as possible to be a connection port 4 which can be freely attached to and detached from the drain pipe 2, and the other end of which is closed. A tubular water injection port 6 is formed on the outer peripheral portion of the body 5 at a substantially intermediate position in the axial direction, to which a water injection hose 13 is detachably connected, and the outer peripheral portion near the closed end of the pipe body 5, which is formed by a cap 7. It is configured to include a tubular injection port 8 for a drain pipe cleaning agent that is formed to be freely opened and closed, and a reinforcing and supporting bracket 9 that is fixed to the outer peripheral surface of the tubular body 5.

Here, the tubular body 5 is formed of transparent synthetic resin. A male screw portion 4A is formed on the outer peripheral surface of the end portion of the connection port 4 of the tubular body 5, and the male screw portion 4A is formed on the male screw portion 4A.
0 is fitted. A taper ring 12 having a rubber ring 11 is attached to the inner peripheral surface of the hole 10A of the head of the cap nut 10 and the drain pipe 2 is attached to the taper ring 12.
The end of is pressed.

Therefore, the drain pipe 2 and the water injection device 1 are detachably connected by the fitting structure of the cap nut 10 fixed to the drain pipe 2 and the male screw portion 4A of the pipe body 5 side. A connector 14 for detachably connecting the water injection hose 13 is fixedly attached to the tubular water injection port 6, and the connector 14 can be closed by a cap (not shown) when the water injection hose 13 is not connected. ing. At the end of the water injection hose 13, a tubular water injection port 6
An L-shaped connector 15 for detachably connecting to is fixedly attached.

In this case, although not shown, the inner peripheral surface of the inner cylindrical portion forming the connection port for the L-shaped connector 15 on the side of the water injection hose 13 is formed on the outer peripheral surface of the tip end of the connector 14 on the side of the tubular water injection port 6. A claw part that is engaged with and disengageable from the convex part and is supported so as to freely move forward and backward, and the claw part is slidably provided on the outer peripheral side of the inner cylinder part by the sliding operation of the claw part. It is configured to move the part forward and backward to engage and disengage the claw part with the convex part, and the water injection hose 13 and the tubular water injection port 6 can be attached and detached with one touch by the sliding operation of the outer cylinder part. Has become.

The drug tubular inlet 8 is raised obliquely rearward from the outer peripheral surface of the tubular body 5 at a predetermined angle (for example, 45 degrees), and a male screw portion 8A is formed on the outer peripheral surface of the distal end portion thereof. The cap 7 for opening and closing the tubular charging port 8 has a female screw portion 7A formed on the inner peripheral surface of the open portion thereof, and the tubular charging port 8 is opened and closed by the cap 7 due to the fitting structure of the cap 7 and the tip of the tubular charging port 8. To be done. A rubber packing 16 is interposed between the inner end surface of the cap 7 and the tip end surface of the tubular charging port 8.

The reinforcing and supporting bracket 9 is formed in a plate shape, and is joined to the boundary between the outer peripheral surface of the tubular inlet 8 and the outer peripheral surface of the tubular body 5 so as to stand up. The bracket 9 is formed with a connecting hole 9A for connecting the hanging bolt 17. The suspension bolt 17 is connected to the ceiling,
The water injection device 1 is suspended and supported on the ceiling via the suspension bolts 17.

Next, the water injection work using the water injection device 1 having such a configuration will be described. First, the cap is removed from the connector 14 of the tubular water inlet 6 to open the tubular water inlet 6. Next, as shown in FIG. 2, in a building or the like, one-touch hose connector 18A connected to a tap 18 of a water supply in a washroom or the like is connected to one end of a water supply hose 13 drawn from a hose reel 19 and the water supply is performed. The L-shaped connector 15 previously connected to the other end of the hose 13 is connected to the connector 14 of the tubular water inlet 6.

This completes the preparation for water injection. Then, when the faucet 18 is opened, water is supplied into the pipe body 5 of the water injection device 1 through the water injection hose 13 and circulates from the pipe body 5 to the drain pipe 2, and a running water test after pipe installation,
Water injection during regular cleaning can be performed. The running water condition is visually observed through the transparent tube 5.

Further, at the time of regular cleaning, the cap 7 of the tubular charging port 9 may be removed, the tubular charging port 9 may be opened, and the medicine may be charged from there. Water injection device 1 having such a configuration
According to this, the water injection hose 13 can be easily connected to easily inject water into each of the drain pipes 2, does not require much labor, is efficient, and, in addition, since the pipe body 5 is formed transparent, The state of water flowing into the drain pipe 2 can be easily visually checked, and the drain pipe 2 can also be used in correspondence with the water injection inlet position of any drain pipe.

In particular, according to this embodiment, since the bracket 9 for reinforcing and supporting is joined to the boundary between the outer peripheral surface of the tubular charging port 8 and the outer peripheral surface of the tubular body 5, the strength of the tubular body 5 can be improved. At the same time, it is convenient because it is not necessary to separately attach a suspending band or the like for suspending and supporting the pipe body 5 from the ceiling.
FIG. 4 is a cross-sectional view showing a device for filling a water-filling full-scale test of an air-conditioning drain pipe as an example of a device used when water-filling an air-conditioning drain pipe according to claim 2, and FIG. It is a perspective view.

As shown in FIG. 3, the full water test device 20 is connected to the downstream end of the air conditioning drain pipe 2 to which the drain of the air conditioner is connected. In FIGS. 4 and 5, the full water test device 20 has a tubular body 22 whose both ends are open connection ports 21 that are freely detachable from the drain pipe 2.
A tubular full water confirmation window 23 formed on the outer peripheral portion of the tubular body 22 at a substantially intermediate position in the axial direction, a transparent plate 24 stretched over the confirmation window 23, and the inside of the tubular body 22. An on-off valve 25 that opens and closes a portion on the downstream side of water injection with respect to the confirmation window 23.
And are included.

Here, the tubular body 22 is made of transparent synthetic resin. Male screw portions 21A are formed on the outer peripheral surfaces of the end portions of the connection ports 21 on both sides of the pipe body 22, and the cap nuts 26 are fitted to the male screw portions 21A, respectively. The inner peripheral surface of the hole 26A of each head portion of each of the nut nuts 26 is formed into a tapered surface, and the ends of the drain pipe 2 are press-fitted into the tapered surface. Further, packing 27 is interposed between the end faces of the connection ports 21 on both sides of the pipe body 22 and the inner end faces of the cap nut 26.

Therefore, the drain pipe 2 and the full-filling test device 20 are detachably connected by the fitting structure of the screw nut 26 fixed to the drain pipe 2 and the male screw portion 21A of the pipe body 22 side. A transparent plate 24 is mounted on the outer end surface of the tubular full-water confirmation window 23 via a seal member 28, and is fastened by a screw 29.

On the other hand, the opening / closing valve 25 is a circular plate 25a.
And a circular rubber plate 25 stretched over one surface of the circular plate 25a
The valve body 25A includes a valve body 25A, a rotation mechanism that rotates the valve body 25A, and a fixing mechanism that fixes the valve body 25A at an arbitrary rotation position. That is, one end of the swing arm 30 having a substantially L shape is fixed to the circular plate 25a of the valve body 25A. The other end of the swing arm 30 is fixedly attached to a rotating shaft 31 which is rotatably supported by the base of the tubular full water check window 23.

In this state, the valve body 25A is located at a position (open position) corresponding to the opening portion on the base side of the tubular full water confirmation window 23 and at a position downstream of the water injection confirmation window 23 of the pipe body 22. It is set so as to be rotatable between a closed position in which it abuts on the valve seat 32 formed of a tapered surface formed in the opening. One end of the rotating shaft 31 is projected from the outer surface of the base of the tubular full water check window 23, and a lever 33 for opening and closing the valve body is connected to the projected portion. The rotating shaft 31 further protrudes from the lever 33, and a male screw portion (not shown) is formed on the outer peripheral surface of the protrusion portion, and a wing nut 34 for fixing the lever is fitted to the male screw portion. Therefore, by tightening the wing nut 34, the lever 33 is fixed and rotation of the rotating shaft 31 is suppressed, and by loosening the wing nut 34, the lever 33 becomes free and the rotating shaft 31 rotates. Movement is allowed.

Next, a full-filling test operation using the full-filling test device 20 having such a configuration will be described. During normal times when the drain pipe 2 is not filled with water, the valve body 25A is kept open, so that the drain pipe 2 is not blocked. On the other hand, when water is injected into the drain pipe 2, the valve body 25A is closed. As a result, the drain pipe 2 is closed at its downstream end.

In this state, for example, when water is injected into the drain pipe 2 using the above-described water injection device 1, the drain pipe 2 is filled with water. Therefore, this full state may be visually confirmed through the transparent plate 24 from the tubular full water confirmation window 23. In addition, the tubular water-filling check window 23 is used to check the running water test and the running water status at the time of regular cleaning.

Further, the sterilizing agent is poured into the drain pipe 2 with the valve body 25A closed, and the drain pipe 2 is stopped for a certain period of time to sterilize the drain pipe 2. Also, it is possible to clearly confirm the water leakage site. According to the full water test device 20 having such a configuration, the full water test of the drain pipe 2 can be easily performed, and furthermore, the running water test and the running water state at the time of regular cleaning can be easily confirmed. Further, the drain pipe 2 can be easily sterilized.

[0033]

As described above, according to the invention described in claim 1, it is possible to easily connect the water injection hoses to easily inject water into the respective drain pipes, which does not require much labor and is efficient. Good, and moreover, the running water condition to the drain pipe can be easily confirmed visually, and it can be used in correspondence with the water injection inlet position of any drain pipe.

According to the second aspect of the present invention, the full water test of the drain pipe can be easily carried out, and furthermore, the running water test and the running water condition at the time of regular cleaning can be easily checked. Further, the drain pipe can be easily sterilized.

[Brief description of drawings]

FIG. 1 is a sectional view showing an embodiment of the invention described in claim 1.

FIG. 2 is a perspective view illustrating a usage state of the above embodiment.

[Figure 3] Drain pipe piping diagram

FIG. 4 is a sectional view showing an embodiment of the invention according to claim 2;

FIG. 5 is a partially exploded perspective view of the above embodiment.

[Explanation of symbols]

 1 Water-injection device 2 Air-conditioning drain pipe 4 Connection port 5 Tubular body 6 Tubular water injection port 7 Cap 8 Tubular injection port of drug 13 Water injection hose 20 Fullness test device 21 Connection port 22 Tubular body 23 Full water check window 24 Transparent plate 25 on-off valve

Claims (2)

[Claims] 1. A device for use when pouring water in an air conditioning drain pipe connected to an upstream end of an air conditioning drain pipe to which a drain part of an air conditioner is connected, the one end of which is attached to and detached from the drain pipe. A tube body made of a transparent body that is opened as much as possible to have a free connection port and the other end is closed, and a water injection hose that is formed on the outer peripheral portion of the tube body at a substantially intermediate position in the axial direction, and is freely detachably connected. An air conditioner characterized by including a tubular water injection port and a tubular injection port for a drain pipe cleaning agent which is formed in an outer peripheral portion near the closed end of the pipe body and which is freely opened and closed by a cap. Equipment used when water is injected into the drain pipe. 2. A device used at the time of water injection of an air conditioning drain pipe interposed at a downstream end of an air conditioning drain pipe to which a drain part of an air conditioner is connected, the both ends of which are connected to the drain pipe. A tubular body that is opened as much as possible to be a detachable connection port, a tubular full water confirmation window formed on the outer peripheral portion of the tubular body at a substantially intermediate position in the axial direction, and a transparent plate stretched over the confirmation window. And an opening / closing valve that opens and closes a water injection downstream side portion of the inside of the pipe body with respect to the confirmation window, and a device used for water injection of an air conditioning drain pipe.