JPH0860723A - Drainage trap - Google Patents

Abstract

PURPOSE: To prevent breakage of a drainage trap caused by pressing at the time of discharge operation for staying garbage so as to improve durability by integrally forming a rib on an inner groove and the opposite side of a parting line along the bending direction. CONSTITUTION: A peripheral projected part 16 and a bellows part 20 are provided on a drainage trap 10 formed by a flexible pipe, and a downward bending part 11 and an upward bending part 23 are provided thereon. Ribs 26,26 are integrally formed on an inner groove and the opposite side of a parting line formed by both bending parts 22, 23. Accordingly, if garbage or the like stays in the bending parts 22, 23. the garbage can be easily pushed out to the downstream side through the upward bending part 23 by pressing the downward bending part 22 by hands. Furthermore, as the ribs 26 are formed, the strength of the parting line part can be secured enough, and the life of the drainage drap 10 can be elongated.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drain trap in an automatic ice maker, and more particularly to a drain trap which is flexible and can easily remove dust accumulated in a vertically bent portion.

[0002]

2. Description of the Related Art A conventional drain trap in an automatic ice making machine or the like, as described in Japanese Utility Model Laid-Open No. 49798/1993, is made of a rubber-like elastic material and has a passage bent vertically up and down, It is very difficult to form the bent part of the drain trap 1 as a whole, and as shown in FIG. 6, the flexible drain trap 1 composed of a pipe bent up and down is used. In some cases, the removal port 2 for the accumulated dust is formed at the lower end of the lid 4, and the lid 4 is screwed to the removal port 2 with the packing 3 sandwiched therebetween. There is a problem that water leakage occurs from the removal port 2 due to deterioration of the packing 3, dust is easily clogged in the recess formed at the lower end of the drain trap 1 by the removal port 2, and the number of parts increases.

Further, in each of the above-mentioned conventional devices, as shown in FIG. 7, a parting line 5 appears at the time of molding, corresponding to the seam of the mold along the bending direction of the vertical bending portion. As a result of the inner groove 7 being formed on the opposite side of the burr 6, the part of the parting line 5 is thinned and the strength of the product from which the burr 6 is removed is reduced, so that the water stored in the downward bent portion is cooled in winter. There is a risk of bursting at the parting line 5 when frozen to the like, and the positional relationship and the vertical length of the upper and lower ends of the bent drain trap are constant, so the applicable model of the drain trap is limited, It is necessary to prepare a separate drain trap for each model, which causes a rise in manufacturing costs.

[0004]

SUMMARY OF THE INVENTION The present invention is intended to improve the durability of a bent drain trap made of a flexible pipe in an automatic ice making machine, a refrigerator, a dishwasher or the like.

[0005]

Therefore, the drain trap according to the present invention is composed of a flexible pipe bent up and down, and is opposite to the inner groove of the parting line formed along the bending direction. The rib is integrally formed on the side.

[0006]

In other words, since the drain trap is composed of a flexible pipe that bends up and down, pressing the downward bent portion by hand bends the dust accumulated in the bent portion upward. While it can be easily pushed out to the downstream side through the part, the rib is integrally molded on the opposite side to the inner groove of the parting line formed along the bending direction of the drain trap, so the parting line of the drain trap It is possible to reliably prevent the strength of the portion from decreasing.

[0007]

Embodiments of the present invention will be specifically described below. 1 and 2, a flexible transparent or translucent pipe-shaped drain trap 10 formed of a resin such as polyethylene or vinyl chloride has an upper end inlet 11 thereof.
And the lower end outlet 12 are each expanded in a trumpet shape, and are fitted into the drainage port 13 and the drainage pipe 14 of an automatic ice maker, a refrigerator, a dishwasher, etc., and the tightening band 15
Are fixed from the outer peripheral side.

Further, a circular convex portion 16 is formed on the upper portion of the drain trap 10, and as shown in detail in FIG.
The orbiting protrusion 16 is composed of two rows of annular protrusions 17 and an annular recess 18 formed between them and having a diameter slightly larger than the diameter of the drain trap 10. On the other hand, below the orbiting protrusion 16 A bellows portion 20 composed of a plurality of annular projections 19 is provided on each of the annular projections 1 and, as shown in detail in FIG.
The top portion of 9 has an arcuate cross section, while a groove 21 having a substantially V-shaped cross section is formed between the adjacent annular projections 19, and the bellows portion 20 is easily bent in the groove 21.

Further, the drain trap 10 has a bellows portion 20.
The lower bent portion 22 is wider than the upper bent portion 23 and has a larger passage area, while the lower bent portion 22 and the upper bent portion 23 are continuously provided in the lower bent portion 22 and the upper bent portion 23. In the parting line 24 formed along the bending direction of the upper bent portion 23, ribs 26 are integrally formed on the opposite side of the inner groove 25, respectively, as shown in detail in FIG. The flash 27 formed on the outer surface of the rib 26 during the molding of the trap 10 has been removed.

That is, drainage is stored in the downward bent portion 22 of the drainage trap 10, and the drainage port 13 is stored by the stored water.
If the waste trap 10 is airtightly closed and the drain trap 10 is transparent or semi-transparent and dust is retained in the lower bent portion 22, the flexible lower bent portion 22 is handled. By appropriately pressing with, the dust and the like accumulated in the bent portion can be easily pushed out to the drain pipe 14 on the downstream side via the upper bent portion 23, and the inside of the lower bent portion 22 can be cleaned, and the downward bent portion Since the passage area of the portion 22 is formed to be large and the bellows portion is not provided in the downward bending portion 22, the retention and adhesion of dust in the downward bending portion 22 are relatively small, and the drainage trap 10
At the same time, it is possible to constantly flow through the water stably, and at the same time, the trap function of the stored water can be ensured, so that the insect repellent and deodorant effects can always be sufficiently fulfilled.

Further, in the drain trap 10, the rib 26 is integrally formed with the parting line 24 formed along the bending direction of the lower bent portion 22 and the upper bent portion 23, so that the inner groove 25 is formed inside thereof. Even if formed
No thin wall portion is formed in the lower bent portion 22 and the upper bent portion 23, so that the necessary strength can be easily ensured, and the durability of the drain trap 10 can be significantly improved as compared with the conventional one. The presence of 26 has the practical advantage of preventing the body of the lower bend 22 and the upper bend 23 from being damaged when the flash 27 is removed, and the rib 26 is relatively small in size, The flexibility of the lower bent portion 22 and the upper bent portion 23 is not particularly impaired.

Further, the upper end inlet 11 of the drain trap 10
Since the lower end outlet 12 and the lower end outlet 12 are each expanded in a trumpet shape, the operation of inserting the drain port 13 and the drain pipe 14 into each of them becomes easy, and the tightening band 15 fixed from the outer peripheral side has the upper end inlet 11 and the lower end. The trumpet-shaped enlarged portion of the outlet 12 makes it difficult for the outlet 12 to come off, so that water leakage does not occur from these attached portions.

Further, since the orbiting convex portion 16 is formed on the upper portion of the drain trap 10, the vertical length of the drain trap 10 can be changed by hitting the annular recess 18 with a cutter to cut it. At the time of cutting, the cutter can be easily guided by the two rows of the annular projections 17, and the cutting work can be performed reliably and safely, and the annular recess 18 that is the upper end after cutting has a large diameter. Therefore, the connection work to the drain port 13 can be easily performed.

Further, the bellows portion 20 of the drain trap 10
Is easily expanded and contracted as a whole by bending at the portion of the substantially V-shaped groove 21, and it is possible to freely adjust the attachment direction of the upper end inlet 11 and the lower end outlet 12 of the drain trap 10 and the vertical length. Therefore, in combination with the vertical length change of the drain trap 10 as described above, the drain trap 10 is commonly used even for multiple models having different relative positions of the drain port 13 and the drain pipe 14 and vertical distances. Therefore, since it is not necessary to prepare a separate drain trap for each model, the manufacturing cost of the drain trap 10 can be easily kept low.

It should be noted that, in the vertically bent portion of the flexible drain trap, the rib integrally formed with the parting line along the bent direction should be installed at the upper bent portion, which is less problematic in terms of strength. Omitting, even if installed only in the downward bending portion, it is possible to obtain substantially the same effect as the above-mentioned embodiment, and further, a plurality of orbiting convex portions in the above-mentioned embodiment are provided at intervals vertically, respectively. By making it possible to cut at the circling convex portion of, the vertical length of the drainage trap can be selected in several ways, or alternatively, the circling convex portion or the bellows portion in the above-mentioned embodiment can be changed to the vertical bending portion as necessary. It goes without saying that it can be provided on the downstream side.

[0016]

In the drainage trap according to the present invention, the ribs are integrally formed on the parting line along the bending direction of the drainage trap, and the strength of the parting line portion of the drainage trap is sufficiently secured. In addition, it is possible to reliably prevent the drain trap from being damaged due to freezing of stored water in the downward bent portion or discharge operation of accumulated dust by pressing the downward bent portion, and it is possible to maintain a long life as the drain trap. , It is possible to increase the commercial value of equipment equipped with this drain trap.

[Brief description of drawings]

FIG. 1 is a vertical sectional view of an embodiment of the present invention.

FIG. 2 is a bottom view of the above embodiment.

FIG. 3 is an enlarged view of part III in FIG. 1.

FIG. 4 is an enlarged cross-sectional view of the IV part of FIG.

5 is an enlarged view of VV cross section of FIG. 1. FIG.

FIG. 6 is an exploded perspective view of a conventional device.

FIG. 7 is an enlarged cross-sectional view of a main part of a conventional device.

[Explanation of symbols]

 10 Drain Trap 16 Orbiting Convex 20 Bellows 22 Lower Bend 23 Upper Bend 24 Parting Line 26 Rib

Claims (2)

[Claims] 1. A drain trap formed by a flexible pipe bent up and down and integrally formed with a rib on the side opposite to the inner groove of a parting line formed along the bending direction. 2. The drain trap according to claim 1, wherein a bellows portion is formed upstream or downstream of the vertically bent portion.