Insect-proof cap

Abstract

To provide an insect proof cap capable of preventing entry of an injurious insect from a tip of an external tubular body, and preventing clogging of a hole part for waste water.SOLUTION: A main body part 1 of an insect proof cap is composed of a synthetic resin material containing an injurious insect repellent ingredient and molded as a resin molded article, and comprises, on one end, a fitting part 2 to which a tip of an external tubular body can be fitted, and on the other end, a bottom part 4 provided with a plurality of openings 3. A plurality of wall parts 11 erected vertically from the side face are arranged in parallel so as to surround the periphery of the side face of the main body part. Between the adjacent wall parts 11, a hole part is arranged. The insect proof cap installed horizontally is configured so that one side of a polygonal shape of each of the plurality of wall parts 11 is a bottom side and the insect proof cap does not rotate, and even if dead leaves and the like are accumulated around the insect proof cap, accumulated objects hardly enter the gap between the wall parts 11, and the obliquely arranged hole part is not clogged by the accumulated objects.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to an insect-proof cap attached to the tip of an external tubular body such as a drain hose of an air conditioner device.

Background Art

[0002] Patent Document 1 discloses an insect-proof cap attached to the tip of a drain hose of an air conditioner device. The insect-proof cap of Patent Document 1 is installed vertically from the ground, and water droplets generated by the drive of the air conditioner device are discharged to the outside through the lattice-shaped opening at the tip of the cap and the holes on the side surface.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] However, with the insect-proof cap of Patent Document 1, it is impossible to prevent small pests from entering through the lattice-shaped opening. In addition, the drain hose of the air conditioner device is often arranged horizontally. When the insect-proof cap of Patent Document 1 is arranged horizontally, the holes on the side surface may be blocked by dust or the like, and in such a case, there is a problem that the drainage efficiency is reduced.

[0005] Further, even if the insect-proof cap can prevent pests from entering the house through the drain hose, pests are likely to gather around the tip of the drain hose that appropriately drains water droplets in summer, and pests may inhabit the veranda or the like where the drain hose is arranged, or the gathered pests may enter the house through another route.

[0006] An object of the present invention is to provide an insect-proof cap that prevents pests from entering from the tip of an external tubular body such as a drain hose and that prevents the drainage holes from becoming clogged.

Means for Solving the Problems

[0007] The insect-proof cap according to the present invention for solving the above problems is an insect-proof cap provided with an attachment portion at one end of a long cylindrical main body portion for attaching to the tip of an external tubular body, wherein the main body portion is molded from a synthetic resin material containing a pest-repellent component that pests avoid, or a bait is disposed in the main body portion.

Effects of the Invention

[0008] According to the insect-proof cap of the present invention, regardless of the size of the pests, it is possible to prevent the pests from entering the house via the drain hose of the air conditioner. Also, pests do not gather at the tip of the drain hose. Further, by providing drainage holes between polygonal wall portions, it will not rotate and move when installed horizontally, preventing the holes from becoming clogged.

Brief Description of the Drawings

[0009]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Best Mode for Carrying Out the Invention

[0010] In Fig. 1 of the insect-proof cap, it is a perspective view, Fig. 2 is a front view, and Fig. 3 is a side view. The insect-proof cap has a hollow, substantially long cylindrical shape with a diameter of about 1.5 cm and a length of about 5 cm. Depending on the drainage volume of the drain hose of the air conditioner device, etc., one of an appropriate size can be adopted.

[0011] The main body 1 of the insect-proof cap is molded from a synthetic resin material containing a pest repellent component that pests such as cockroaches and ants avoid. The insect-proof cap is molded, for example, by kneading a pyrethroid-based insecticide, etc. into a thermoplastic synthetic resin material such as polyethylene or ABS resin, and then pouring these into a mold or the like.

[0012] The main body 1 of the insect-proof cap has, at one end, an attachment portion 2 that can attach the tip of an external tubular body such as a drain hose of an air conditioner device, and at the other end, a bottom portion 4 provided with a plurality of openings 3. Further, an outer cylinder portion 5 protrudes outward so as to surround the bottom portion 4. Note that the outer cylinder portion 5 has a hexagonal cylinder shape, but an appropriate shape such as a cylinder may be adopted.

[0013] The attachment portion 2 is composed of a first locking cylinder portion 6 on the central side and a second locking cylinder portion 7 that is longitudinally continuous with the first locking cylinder portion 6 outside the first locking cylinder portion 6. The diameter of the second locking cylinder portion 7 is smaller than the diameter of the first locking cylinder portion 6, and one or a plurality of ring portions 8 are provided on the first and second locking cylinder portions 6 and 7 so as to surround the outer periphery. Note that the attachment portion 2 can correspond to the diameters of two types of drain hoses, but three or more locking cylinder portions may be provided so as to be able to correspond to three or more types of drain hoses.

[0014] On the side surface 9 of the main body 1 between the attachment portion 2 and the bottom portion 4, a plurality of hole portions 10 are arranged. The hole portions 10 are arranged at predetermined intervals along the longitudinal direction of the main body 1, and the hole portions 10 arranged along the longitudinal direction are arranged in a plurality of rows, for example, three rows, at equal intervals over the entire circumference of the side surface 9 of the main body 1.

[0015] On the side surface 9, a plurality of wall portions 11 standing vertically from the side surface 9 so as to surround the periphery are arranged in parallel. These wall portions 11 have the same shape and are in the shape of a polygon, for example, a regular hexagon which is a regular polygon. Note that this shape may be a shape that is difficult to rotate other than a substantially circular shape when installed in a horizontal state, and polygonal shapes such as rectangles, horizontally long ellipses, etc. can be appropriately adopted.

[0016] A hole portion 10 is arranged between adjacent wall portions 11, and the hole portions 10 arranged between the wall portions 11 are arranged alternately with respect to the space between the wall portions 11 as shown in the figure. The arrangement of these hole portions 10 may be at an appropriate interval between the wall portions 11, for example, arranged between each of the wall portions 11, or further, may be arranged offset from the hole portions 10 in the adjacent row.

[0017] Also, the size of the hole portion 10 is such that small pests cannot enter, and by arranging a plurality of hole portions 10, water droplets from the drain hose can be sufficiently drained outside the insect-proof cap. Note that the hole portion 10 and the opening portion 3 of the bottom portion 4 have approximately the same size.

[0018] FIG. 4 is a cross-sectional view taken along line A-A in the perspective view of the insect-proof cap shown in FIG. 1, and FIG. 5 is a longitudinal sectional view in a state where the drain hose is attached along line B-B. As shown in FIG. 4, a hole portion 10 is provided on the side surface 9 on a straight line from the vertex of the polygonal wall portion 11 to the central axis of the main body portion 1. By arranging the hole portion 10 in this way, when the insect-proof cap is arranged horizontally, the hole portion 10 is prevented from opening directly below the placement surface. That is, by arranging the hole portion 10 obliquely with respect to the arrangement surface, the hole portion 10 is made difficult to be blocked by dust or the like from below.

[0019] When installing the insect-proof cap, first select and attach the first locking cylinder part 6 or the second locking cylinder part 7 appropriately according to the diameter of the drain hose. As shown in Fig. 5, for example, in the case of the drain hose D that can be attached to the second locking cylinder part 7, the tip of the bellows-shaped drain hose D is pushed into the second locking cylinder part 7. When the tip of the drain hose D is pushed in, the ring part 8 which is a stopper is caught by the bellows of the drain hose D and is fixed so that it will not come off.

[0020] After attaching the insect-proof cap to the drain hose D, the main body part 1 is arranged horizontally on the drain gutter or the exterior floor surface. The insect-proof cap is installed without rotating with one side of the polygonal shape of the plurality of wall parts 11 as the bottom side. Therefore, the insect-proof cap will not move due to wind or the like. Then, when the air conditioner unit is driven and the water droplets discharged through the drain hose D will drip outside through the hole part 10 and the opening part 3.

[0021] Also, even if dead leaves, dust, etc. accumulate around the insect-proof cap, it is difficult for these deposits to enter between the wall parts 11, and furthermore, the hole part 10 arranged obliquely as described above will not be clogged with deposits.

[0022] In addition to installing the insect-proof cap horizontally, it may be installed vertically from the ground in the same manner as the insect-proof cap of Patent Document 1. When installed in this way, since the outer cylinder part 5 exists, the opening part 3 at the bottom 4 will not be blocked by deposits or the like.

[0023] By containing a pest repellent component that pests avoid in the main body part 1, pests will not approach the insect-proof cap. For this reason, pests will not enter the house via the drain hose D, but the pests themselves around the house will not decrease.

[0024] Therefore, instead of the main body part 1 containing a pest repellent component, it is also possible to adopt a main body part 1 in which the poison bait P is arranged in the outer cylinder part 5 which is outside the bottom 4 without containing a pest repellent component in the main body part 1.

[0025] FIG. 6 is a longitudinal sectional view of another form of the insect-proof cap in a state where the poison bait P is disposed inside the outer cylinder portion 5 and the drain hose D is attached. In this insect-proof cap, in order to prevent the poison bait P from being dissolved by the water droplets discharged, it is not necessary to provide the opening portion 3 in the bottom portion 4.

[0026] The poison bait P filled in the outer cylinder portion 5 is preferably in a solid form that does not flow out, and the feeding substance contains an insecticidal component, an attractant component, an antioxidant, a preservative, etc. As the feeding substance, for example, grains such as wheat flour and corn flour, sugars, lipids, etc. are used. As the insecticidal component, for example, one or more kinds are mixed and used from among phenylpyrazole-based insecticides, boric acid, amidino hydrazone-based insecticides, organophosphorus-based insecticides, etc. Further, as the attractant component, organic acids such as caprylic acid and caproic acid, milk components, etc. are used.

[0027] The poison bait P separated by the bottom portion 4 and filled in the outer cylinder portion 5, when installed horizontally, is difficult to get wet because it is inside the outer cylinder portion 5 even if the installation surface of the insect-proof cap is wet. Therefore, it is difficult for the poison bait to be dissolved by water and flow out. Further, in the insect-proof cap in which the poison bait P is disposed, when the air conditioner device is driven, the water droplets discharged through the drain hose D will drip to the outside only from the hole portion 10.

[0028] Also, similar to the insect-proof cap in which the poison bait P shown in FIG. 6 is disposed, without containing a pest repellent component in the main body portion 1, a mesh-shaped pest repellent sheet S made of a base material such as synthetic resin and a pest repellent component can be disposed inside the outer cylinder portion 5 which is outside the bottom portion 4.

[0029] FIG. 7 is a longitudinal sectional view of another form of the insect-proof cap in a state where the pest repellent sheet S is disposed inside the outer cylinder portion 5 and the drain hose is attached. The pest repellent sheet S is molded by kneading a pest repellent component into the base material or fixing the pest repellent component to the base material, and is disposed so as to block the inside of the outer cylinder portion 5.

[0030] Compared with the insect - proof cap shown in Fig. 1 in which an insect - repellent component is kneaded into the main body part 1, the pest - repellent sheet S in which a pest - repellent component is fixed to the base material has a high effect on the contacted pests, and the pests will disperse from the insect - proof cap and die.

[0031] As the pest - repellent component of the pest - repellent sheet S, amide - based repellents, pyrethroids including etofenprox, etc. can be used. These can be used alone, or two or more pest - repellent components can be used in combination.

[0032] Thus, according to the insect - proof cap of the present invention, regardless of the size of the pests, it is possible to prevent the pests from entering the house via the drain hose D of the air - conditioner device. Further, pests do not gather at the tip of the drain hose D. Also, by providing the drain holes 10 between the polygonal wall portions 11, it will not rotate and move when installed horizontally, preventing the holes 10 from being clogged.

Explanation of reference numerals

[0033] 1 Main body part 2 Mounting part 3 Opening 4 Bottom 5 Outer cylinder part 6 First locking cylinder part 7 Second locking cylinder part 9 Side surface 10 Hole 11 Wall part

Claims

1. An insect-proof cap provided with an attachment portion at one end of a long tubular main body portion for attachment to the tip of an external tubular body, wherein the main body portion is molded only from a synthetic resin material containing a pest-repellent component that pests avoid, or a pest-repellent sheet or bait composed of a base material and the pest-repellent component is disposed on the main body portion. An insect-proof cap characterized by this.

2. A bottom portion is disposed at the other end of the main body portion. When the main body portion is molded only from the synthetic resin material, a plurality of openings are provided in the bottom portion. The insect-proof cap according to claim 1, characterized by this.

3. A bottom portion is disposed at the other end of the main body portion. When the pest-repellent sheet or the bait is disposed on the main body portion, an outer cylinder portion protrudes outward so as to surround the bottom portion, and the pest-repellent sheet or the bait is disposed in the outer cylinder portion. The insect-proof cap according to claim 1, characterized by this.

4. A plurality of holes are disposed on the side surface of the main body portion between the attachment portion and the bottom portion. The insect-proof cap according to claim 2 or 3, characterized by this.

5. A plurality of wall portions standing vertically from the side surface are arranged in parallel so as to surround the periphery of the side surface of the main body portion, and the holes are disposed between the wall portions. The insect-proof cap according to claim 4, characterized by this.

6. The wall portion has a shape that is difficult to rotate other than a substantially circular shape when installed in a horizontal state. The insect-proof cap according to claim 5, characterized by this.

7. The wall portion is polygonal. The insect-proof cap according to claim 6, characterized by this.

8. The holes are provided on the side surface on a straight line from the apex of the polygonal wall portion to the central axis of the main body portion. The insect-proof cap according to claim 7, characterized by this.

9. An insect-proof cap provided with an attachment portion at one end of a long tubular main body portion for attachment to the tip of an external tubular body, and a bottom portion at the other end of the main body portion, wherein a plurality of holes are disposed on the side surface of the main body portion between the attachment portion and the bottom portion, a plurality of wall portions standing vertically from the side surface are arranged in parallel so as to surround the periphery of the side surface of the main body portion, and the holes are disposed between the wall portions, The wall portion has a shape that is difficult to rotate other than a substantially circular shape when installed in a horizontal state. An insect-proof cap characterized by this.

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