JP4886310B2 - Insect cap for drain pipes - Google Patents

Description

  The present invention relates to a drain pipe such as a drain pipe or a drain hose for draining drain water generated indoors to the outside in an air conditioner including an indoor unit and an outdoor unit mainly used for home use or office use. The present invention relates to an insect cap for a drain tube that is attached to the end portion of a drain pipe in order to prevent a pest or the like from entering the drain tube from the end opening of the drain tube.

  Conventionally, this type of insect cap for drain pipes has a cap body that is attached to the end of the drain pipe formed in a cylindrical shape having substantially the same diameter as the drain pipe, and the drain pipe is formed on the upper side of the cap body. Forming a fitting portion that fits the outer surface or the inner surface of the pipe, and forming a drainage channel for discharging and guiding drain water from the terminal opening of the drain pipe to the outside in the cap body. By covering with a lattice-shaped insect-repellent body, the size of insects that enter the drainage channel from the outside is limited, thereby preventing insects from entering the drain pipes. (See Patent Document 1 below)

JP 2001-280648 A

  However, in the conventional insect caps for drain pipes as described above, although the size of insects entering the drainage channel from the outside is limited by the lattice-shaped insect-repellent bodies, the insect caps for drain pipes are attached outdoors. In order to avoid defects such as clogging of caps due to dust or sand dust, the grid shape of the lid cannot be made extremely fine, so the difference in insect size due to the environment such as season and region In response to this, there was a problem that insects could not be prevented from entering the drain pipes.

  In addition, since the inside of the drain pipes communicates with the outside through the gap between the grid-like lids, there is a problem in that the air-conditioned room is communicated with the outside through the drain pipes and the airtightness of the air-conditioned room is reduced. there were.

  In view of this situation, the main problem of the present invention is that it is possible to suppress the invasion of insects into the drain pipe regardless of the size of the insects, and to prevent the airtightness of the air-conditioned room from being lowered. The point is to provide a tube insect repellent cap.

A drainage channel that guides and discharges drain water from the terminal opening of the drainage pipe to the cap body that is attached to the terminal end of the drainage pipe in the air conditioner, and a sealed water storage part that seals the drainage path with water It is formed with.

That is, according to the above configuration , the drain water from the terminal opening of the drain pipe is discharged to the outside in a form of pushing out the sealed water in the sealed water storage section through the drain passage of the cap body, While drain water can be discharged to the outside, insects can be prevented from entering the drain pipes through the drainage channel regardless of the size of the insects.

  Furthermore, the sealed water storage section that seals the drainage channel can prevent communication between the air-conditioning target room and the outside through the drainage channel and the drain pipes, resulting in communication between the air-conditioning target room and the outside. It is possible to effectively prevent the airtightness of the air-conditioned room from being lowered and to prevent the outside air from being blown into the drain pipe from the end opening of the drain pipe through the drainage channel. It is possible to prevent the generation of wind noise caused by the noise, and thereby effectively suppress the generation of noise in the air-conditioned room and the vicinity.

  In addition, for example, when the sealed water in the sealed water storage section that seals the drainage channel evaporates in the season when the outside temperature is high, the sealed water level in the sealed water storage section is lowered and the water sealing function is lost. However, since the sealed water in the sealed water storage section can be supplemented with the drain water from the terminal opening of the drain pipes, the above problems can be effectively suppressed.

It is provided with limiting means for limiting the distal opening of the drain tubing to a predetermined depth at the seal water reservoir portion.

  That is, for example, when the depth of the end opening of the drain pipes in the sealed water storage part is too deep, the drainage space between the drain pipes and the bottom of the sealed water storage part becomes narrow, and the drainage water drainage efficiency is reduced. In addition, there is a possibility that a problem such as a decrease or a foreign matter such as dust or dust entering the sealed water storage section sinks and the drainage channel is clogged.

On the other hand, if it is the said structure which restrict | limits the terminal opening part of drain pipes to the predetermined depth in a seal water storage part, the drainage efficiency of drain water will be as much as possible in the terminal opening part of a drain pipe in a seal water storage part. It can be controlled to a suitable depth that can exhibit a stable water sealing function while ensuring a high level, and the above-described problems caused by the depth of the terminal opening of the drain pipes in the sealed water reservoir are effective. Can be prevented.

The regulating means includes a partition wall that divides a region extending from a terminal opening of the drain pipe in the sealed water storage section to a bottom of the water sealing storage section in a state in which the terminal opening of the drain pipe is divided. There is .

That is, with the above configuration , the restricting means for restricting the depth of the end opening of the drain pipe is not limited to the depth restriction of the end opening but from the end opening of the drain pipe in the sealed water storage portion. Since the area extending to the bottom of the sealed water storage part can be used as a partition wall that partitions the terminal opening of the drain pipe, it is simpler than when a partition wall is formed separately from the regulating means. Drainage channels divided by the partition function can be made to function independently, and this can cause clogging of the drainage channel due to intrusion of dust and sand into the drainage channel. The probability of loss of the drainage function can be effectively reduced, and the drainage function can be stabilized.

It is provided with holding means for holding the mounting posture of the cap body relative to the distal end of the drain tubing in a predetermined posture.

In other words, depending on the mounting posture of the cap body with respect to the end portion of the drain pipe, the depth and inclination in the sealed water storage portion formed in the cap body of the end opening portion of the drain pipe change, and thus drain water drainage. There is a risk that the efficiency may decrease, the drainage channel is likely to be clogged, or the sealed water in the sealed water storage section may be lost and the water sealing function may be lost. With the above-described configuration in which the cap body is attached to the end portion of the pipe in a predetermined posture, the cap body is attached to the end portion of the drain pipe while maintaining the drain water drainage efficiency as high as possible. It is possible to maintain a suitable mounting posture that can stably exhibit the sealing function, and effectively suppress the above-described problems caused by the mounting posture of the cap body with respect to the end portion of the drain pipes. Door can be.
And the 1st characteristic structure of this invention is the drainage channel which discharge | releases and guides the drain water from the terminal opening part of a drain pipe to the cap main body with which the terminal part of the drain pipe in an air conditioner is mounted | worn, and this Forming a sealed water storage portion for sealing the drainage channel, and providing a restriction means for restricting a terminal opening of the drain pipes to a predetermined depth in the sealed water storage portion, and the restriction means, the cap body A plurality of drainage channels in a region extending from the end opening of the drain pipe to the bottom of the seal water storage section in contact with the end opening of the drain pipe. It is in the point comprised with the division wall divided into.
In the second characteristic configuration of the present invention, the partition wall is integrally formed on the bottom wall portion and the peripheral wall portion of the cap body in a state where the partition wall extends from the axial center of the drain pipes to a plurality of locations on the peripheral wall portion. In the point.
The third characteristic configuration of the present invention is that the inner surface of the bottom wall portion of the cap main body is configured as an inclined surface positioned downward toward the axial center side of the drain pipes.
According to a fourth characteristic configuration of the present invention, the drain pipe is configured in a contractible bellows shape, and is engaged with a peripheral groove at a terminal end of the drain pipe to thereby prevent the drain pipe from being connected to the end of the drain pipe. A holding means for holding the mounting posture of the cap body in a predetermined posture is provided.

The fifth characteristic configuration of the present invention specifies a preferred embodiment in the implementation of any one of the first to fourth characteristic configurations,
The grounding portion of the cap body is formed in a convex shape, a concave shape, or an uneven shape.

  That is, in the structure in which the cap body is grounded and supported on the grounded part such as the ground, the position and inclination of the cap body with respect to the grounded part are changed by the external pressure such as wind pressure, so that the inside of the sealed water storage part formed in the cap body The depth and inclination of the end opening of the drain pipe change, which causes the drainage water drainage efficiency to drop, the drainage channel to become clogged easily, or the sealed water in the sealed water storage section to spill. However, there is a risk that the water sealing function may be lost. However, if the grounding portion of the cap body is formed in a convex shape, a concave shape, or a concave-convex shape, the grounding portion has a planar shape. Compared to the case of forming the grounded portion, the grounding area between the grounded portion and the grounded portion can be increased, and the moving frictional resistance of the cap body with respect to the grounded portion and the grounded portion can be secured high. Part It is possible to prevent a problem such as described above to cause a change in the position and inclination of the cap body effectively against.

  1-4, for example, as shown in FIG. 5, in an air conditioner including an indoor unit and an outdoor unit 3, a wall through hole and a refrigerant hose 4 that circulates refrigerant between the indoor unit and the outdoor unit 3 are used. A synthetic resin drain such as vinyl chloride used by being attached to the end portion 5A of a bellows type drain hose 5 (an example of drain pipes) made of a synthetic resin such as vinyl chloride extending from the indoor side to the outdoor through An insect cap C for pipes is shown. The insect cap C for drain pipes is formed on the upper edge of the cap body 1 having an upward opening cup shape in which the end opening 5a of the drain hose 5 is inserted from above. A plurality of arm portions 2 for engagement with the end portion 5A (three in this example at equal intervals around the edge) are formed so as to protrude upward.

  The cap body 1 has a partition wall 1b formed on the bottom wall portion 1a for supporting the terminal opening 5a of the drain hose 5 in contact with the inner space 1A of the cap body 1, and the peripheral wall portion 1e. The length D from the inner peripheral surface and the drain hose axis J is configured to be larger than the radius d of the drain hose 5, and the upward wall opening 1c surrounded by the inner peripheral upper edge of the peripheral wall 1e An annular opening 1 f is formed between the inner peripheral surface and the outer peripheral surface of the drain hose 5, and drain water flowing from the terminal opening 5 a of the drain hose 5 is discharged and guided to the outside from the annular opening 1 f. A drainage channel 1d is formed.

  In addition, the cap body 1 stores liquid such as water as sealed water in the internal space 1A in advance up to the upper end of the partition wall 1b that contacts and supports the terminal opening 5a of the drain hose 5 in the internal space 1A. By doing so, a sealed water storage section for sealing the drainage channel 1d and the end opening 5a of the drain hose 5 is configured.

  That is, the drain water from the terminal opening 5a of the drain hose 5 presses the sealed water in the drainage channel 1d by gravity, and the sealed water downstream of the drainage channel 1d is discharged from the annular opening 1f at the downstream end of the drainage channel 1d. It flows into the drainage channel 1d in the overflowed state, and moves downstream in the drainage channel 1d while overflowing the downstream sealing water from the annular opening 1f by the pressure of the subsequent drain water. It flows out from the opening 1f.

  That is, the insect cap C for drain pipes of the present invention discharges drain water to the outside while maintaining the sealing level of the internal space 1A that seals the drain channel 1d and the terminal opening 5a of the drain hose 5. Thus, intrusion of insects into the drain hose 5 is effectively suppressed, and communication between the air-conditioning target room and the outside through the drain hose 5 is effectively prevented, and deterioration of the airtightness of the air-conditioning target room is also effectively suppressed. Further, it is possible to prevent the outside air from blowing into the drain hose 5 from the terminal opening 5a of the drain hose 5 through the drainage channel 1d of the cap body 1, and to prevent the generation of wind noise caused by the blown outside air.

  Moreover, even in the summer when the temperature is high and the amount of insects generated is large, the amount of drain water increases due to an increase in the cooling operation of the air conditioner. As a result, it is possible to effectively prevent problems such as a decrease in the sealing water level and loss of the water sealing function in summer.

  The partition wall 1b is formed in a Y-shape in a plan view with its lateral ends extending to three locations on the peripheral wall 1e of the cap body 1, and the terminal opening of the drain hose 5 as described above. In a state in which 5a is abutted and supported in the internal space 1A of the cap body 1, the cap from the terminal opening 5a of the drain hose 5 is divided into a plurality (three in this example) of the terminal opening 5a of the drain hose 5. A region 1B extending over the bottom wall portion 1a of the main body 1 is divided into a plurality (three in this example), thereby dividing the lower portion of the drainage channel 1d where foreign substances such as dust and sand are likely to accumulate, The probability of loss of the drainage function due to clogging of the path 1d is reduced.

  The height h1 of the partition wall 1b (that is, the rising height from the bottom wall 1a of the cap body 1) is the end opening of the drain hose 5 inserted from the upward opening 1c of the cap body 1. The depth h2 in the internal space 1A of 5a is regulated to a predetermined depth, and in this example, the contact is regulated to a depth that is about half the depth from the upward opening 1c of the cap body 1 to the bottom wall 1a. The height is set so that the water sealing function can be stably exhibited while ensuring drainage drainage efficiency as high as possible.

  The bottom surface of the bottom wall portion 1a of the cap body 1 is formed in a convex shape that protrudes downward toward the center, and the bottom surface of the bottom wall portion 1a is used in contact with the ground GL (see FIG. 5). In comparison with the case where the bottom surface of the bottom wall portion 1a has a planar shape, the ground contact area between the cap body 1 and the ground surface GL is increased by the amount that the convex portion of the bottom surface of the bottom wall portion 1a enters the ground surface GL. Thus, the moving frictional resistance of the cap body 1 with respect to the ground GL is ensured as high as possible.

  The distal end portion of the arm portion 2 that protrudes from the cap body 1 is selectively fitted from one of the radially outer sides to one of a number of circumferential grooves 5 b formed on the outer peripheral surface of the drain hose 5. A locking projection 2a that locks in a projecting manner is formed so as to protrude inward, and the position of the cap body 1 with respect to the end portion 5A of the drain hose 5 by the locking of the locking projection 2a and an arbitrary circumferential groove 5b. A mounting posture such as tilt and inclination can be held in a predetermined posture. In this example, as the predetermined posture, the end opening 5a of the drain hose 5 has a depth h2 regulated by the partition wall 1b in the internal space 1A, and the opening surface of the annular opening 1f of the cap body 1 is horizontal or It is configured to be held in a mounting posture that is substantially horizontal, so that the water sealing function can be stably exhibited while ensuring drainage drainage efficiency as high as possible.

  The length from the end opening 5a of the drain hose 5 to the locking position by the locking projection 2a slightly changes depending on the width and interval of the circumferential groove 5b formed on the outer peripheral surface of the drain hose 5, Thus, the mounting posture of the cap body 1 with respect to the end portion 5A of the drain hose 5 cannot be maintained in the predetermined posture, or depending on the shape of the opening edge of the end opening portion 5a of the drain hose 5, the end opening portion 5a and the partition There is a possibility that a gap may be formed between the upper end surface of the wall 1b and the drainage channel 1d may not be divided. However, the end opening 5a of the drain hose 5 is applied to the partition wall 1b. The drain hose 5 is pushed into the internal space 1A of the cap body 1 in a state where the circumferential groove 5b of the drain hose 5 is contracted with the fulcrum while being attached. By stopping, the mounting posture of the cap body 1 with respect to the end portion 5A of the drain hose 5 is securely held in the predetermined posture, and the end opening portion 5a of the drain hose 5 and the upper end surface of the partition wall 1b are securely in contact with each other. This makes it possible to reliably divide the drainage channel 1 d, thereby preventing the above-described problems caused by the type of the drain hose 5.

  The arm part 2, the locking protrusion 2a, and the partition wall 1b described above are integrally formed with the cap body 1, and these are removed from the cap body 1 so that the drain water draining function and the water sealing function are performed. It is intended to prevent the occurrence of defects.

  In addition, the partition wall 1b formed in the bottom wall part 1a of the said cap main body 1 regulates the terminal opening 5a of drain pipes (drain hose 5) to the predetermined depth in a seal water storage part (internal space 1A). Corresponding to the restricting means, the plurality of locking projections 2a formed on each of the plurality of arm portions 2 of the cap body 1 are holding means for holding the mounting posture of the cap body 1 with respect to the end portion 5A of the drain pipe in a predetermined posture. The lower surface of the bottom wall portion 1 a of the cap body 1 corresponds to the grounding portion of the cap body 1.

[Other Embodiments]
(1) In the above-described embodiment, an example was shown in which an insect cap C for drain pipes was attached to the terminal opening 5a of the drain hose 5 with the bottom wall 1a of the cap body 1 grounded to the ground GL. The bottom wall 1a of the cap body 1 may be attached to the terminal opening 5a of the drain hose 5 in a state where it is separated from the ground GL.

(2) In the above-described embodiment, the example in which the bottom surface of the bottom wall portion 1a of the cap body 1 is formed in a convex shape that protrudes downward toward the center side is shown. It may be a shape, or may be a concave shape that is recessed upward toward the center side, or a concave shape that has a partially recessed portion, or an uneven shape that has a convex portion and a recessed portion, a corrugated shape, etc. An uneven shape may be used.

(3) In the above-described embodiment, the example is shown in which the locking projection 2a as the holding means and the partition wall 1c as the restriction means are formed separately. For example, the partition wall 1c is formed at the end of the drain hose 5. The holding means and the restricting means may be integrally configured, for example, formed in a groove shape that supports the edge of the opening 5a.

(4) In the above-described embodiment, the example in which the arm portion 2, the locking projection 2a, and the partition wall 1b are integrally formed with the cap body 1 has been described. Also good.

(5) In the above-described embodiment, the depth h2 of the terminal opening 5a of the drain hose 5 in the internal space 1A of the cap body 1 is the depth from the upward opening 1c of the cap body 1 to the bottom wall 1a. However, the depth h2 in the inner space 1A of the terminal opening 5a of the drain hose 5 is changed depending on the installation environment such as the region and season. What is necessary is just to change suitably according to it.

(6) In the above-described embodiment, the cap body 1 is attached to the end portion 5A of the drain hose 5 so that the end opening 5a of the drain hose 5 has the above-described depth h2 in the internal space 1A. Although the example of the mounting posture in which the opening surface of the upward opening 1c is horizontal or almost horizontal is shown, the mounting posture of the cap body 1 with respect to the end portion 5A of the drain hose 5 depends on the installation environment such as the region and season It may be changed as appropriate according to the usage situation.

The front view of the insect cap for drain pipes which concerns on this invention The top view of the insect-protecting cap for drain pipes which concerns on this invention AA sectional view of FIG. BB sectional view of FIG. Explanatory drawing which shows the state at the time of use of the insect-protecting cap for drain pipes which concerns on this invention

Explanation of symbols

5 Drain pipe (drain hose)
5A Terminal part 5a Terminal opening part C Insect-proof cap 1 for drain pipes Cap body 1A Sealed water storage part (internal space)
1d Drainage channel 1B Area 1a Bottom (bottom wall)
1b Regulatory means (compartment wall)
2a Holding means (locking projection)

Claims (5)

A drainage channel that guides and discharges drain water from the terminal opening of the drainage pipe to the cap body that is attached to the terminal end of the drainage pipe in the air conditioner, and a sealed water storage part that seals the drainage path with water forming a Rutotomoni provided limiting means for limiting to a predetermined depth of the drain tubing distal opening in the seal water reservoir of the regulating means, provided on the inner face of the seal water reservoir of the cap body And it is comprised with the partition wall which divides | segments the drainage channel of the area | region ranging from the terminal opening part of the said drain pipes to the bottom part of a sealing water storage part in the state which contact | connected the terminal opening part of the said drain pipes. Insect cap for drain pipes. 2. The drain pipe according to claim 1, wherein the partition wall is integrally formed on a bottom wall portion and a peripheral wall portion of the cap body in a state extending from a shaft core of the drain pipe to a plurality of locations of the peripheral wall portion . Insect-proof cap. The insect-protecting cap for drain pipes according to claim 1 or 2 , wherein the inner surface of the bottom wall portion of the cap main body is configured as an inclined surface positioned downward toward the axial center side of the drain pipes. The drain pipe is configured in a contractible bellows shape, and the cap body is attached to the end portion of the drain pipe by engaging with the peripheral groove at the end portion of the drain pipe. drain tubing protectant cap according to any one of claims 1 to 3, the holding means is provided for holding the.   The insect-protecting cap for drain pipes according to any one of claims 1 to 4, wherein the grounding portion of the cap body is formed in a convex shape, a concave shape, or an uneven shape.

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