JPH0664083U - Trap structure for the drainage part of refrigerators - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a trap structure for a drainage part of a refrigerator or the like, which can be cleaned safely, easily, and completely and has a structurally clean structure. [Structure] Drainage part 1 provided at the bottom of a case such as a refrigerator
0 protrudes downward from the interior bottom plate 1 of the case in a substantially bowl shape,
It is composed of a drainage receiving portion having a drainage port 13 at the center of the substantially flat bottom 12 and a drainage pipe 15 provided below the drainage port 13. The drain cap 20 attached to the drainage portion 10 is provided with an insertion portion 22 that is airtightly attached to the drainage pipe 15 from the drainage port 13 and a flange portion that is formed with a drain hole 27 that allows water to be drained while being attached in an airtight manner. 25
And the outer peripheral surface 29 of the flange portion 25.
And a partition portion 31 formed integrally with the main body portion 21 at a predetermined interval, and the vent hole 27 is formed from the bottom plate 12 of the drainage receiving portion when the drain cap 20 is attached to the drainage pipe 15. It is located at a predetermined height, and the lower end 32 of the partition 31 is set higher than the bottom plate 12 of the drainage receiver and lower than the vent hole 27.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention comprises a combination of a drainage part for draining drainage generated in a case such as a refrigerator and a drain cap attached to the drainage part. When the drain cap is attached to the drainage part, a trap state is established. The present invention relates to a trap structure for a drainage part of a refrigerator or the like that can hermetically shield the inside of a case from the outside.

[0002]

[Prior art]

 Condensation water is generated inside the heat insulation box of refrigerators, showcases, etc., so it must be drained appropriately. In addition, the inside of the heat insulating box must be hermetically sealed so that heat is not transferred to or from the outside. Therefore, the bottom plate of a heat insulating box such as a refrigerator or a showcase is provided with a drain trap that can drain the drain generated inside and can shut off the inside and outside of the case in an airtight manner. Various types of drain traps have been proposed in the past, such as 57-68479, 58-33982, and 62-45674, but the direct technology of the present invention is 63. No. 40783 can be mentioned. The drain trap described in this publication has a bell-shaped upper lid. Then, this upper lid is fixed to a drain pipe projecting upward at approximately the center of the drain receiver. In this way, the drain trap's drain receiver is formed in a substantially bowl shape, and since the drain pipe projects upward, there is a drain reservoir between the drain receiver and the drain pipe, and the drain collected in the drain reservoir is drained. Drains from the groove formed in the upper part of the pipe. Therefore, the drain generated inside can be drained and the inside and outside of the case can be airtightly shut off.

[0003]

[Problems to be solved by the device]

 However, the above drain trap has many problems or points to be improved. For example, the drain pipe protruding upward is provided integrally with the drain receiver, so the drain pipe protruding upward is an obstacle when cleaning. There is also a risk of injury due to the protruding drain pipe when cleaning. Furthermore, since the drainage receiver and the drainage pipe are integrally formed, and the drainage pipe projects upward, the drainage collected in the drainage reservoir between the drainage receiver and the drainage pipe can be drained even during cleaning. However, there is also a problem in hygiene as it may rot. In addition, foreign matter such as dust is easily caught in the groove formed in the drainage pipe, but the groove is located inside the drainage receiver, and since the drainage receiver cannot be removed, it is difficult to remove it. is there. Furthermore, since the drainage receiver and the drainage pipe are integrally formed, the structure is complicated and the cost may increase. The present invention aims to provide a trap structure for a drainage part of a refrigerator or the like, in which the above-mentioned problems are improved. Specifically, cleaning can be performed safely, easily, and completely, and the structure is It also aims to provide a clean trap structure for the drainage part of refrigerators and the like.

[0004]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the present invention comprises a combination of a drain part provided at the bottom of a case such as a refrigerator for draining the drain in the case, and a drain cap attached to the drain part. The drainage portion is provided below the drainage outlet, which has a drainage outlet projecting downwardly from the interior bottom plate of the case of a refrigerator or the like in a substantially bowl shape, and having a drainage outlet at the center of the substantially flat bottom portion. The drain cap is composed of a lower portion that is airtightly attached to the drainage port of the drainage receiving portion, and an upper portion that has a vent hole through which the drainage can be performed in the airtightly attached state. And a partition portion integrally formed with the outer peripheral portion of the upper portion of the main body portion so as to hang down from the ceiling portion of the main body portion at a predetermined interval. The lower part of the main body is When it is attached to the drain port of the drainage part, it is located at a predetermined height from the bottom of the drainage receiving part, and it is lower than the vent hole near the lower end of the partition part or between the lower end and the bottom of the drainage receiving part. There is a drain passage located there.

[0005]

[Operation] Attach the lower part of the main body of the drain cap to the drain port of the drain part. Then, the drainage port is sealed at the lower portion, and a drainage reservoir is formed between the portion of the drainage portion projecting in a substantially bowl shape and the upper portion of the main body of the drain cap. In this state, the vent hole is located at a predetermined height above the bottom of the drainage receiver. The hanging lower end of the partition of the drain cap will be located between the bottom of the drainage receiver and the hole. Alternatively, abut. Drain collects in the drainage receiver. That is, the water passes through the drain passage provided near the lower end of the partition or between the lower end of the partition and the bottom of the drainage receiver, and collects up to the position of the vent hole. Further drainage is discharged to the drainage pipe through the vent hole. In this way, the drain is drained and the inside of the case such as the refrigerator is shut off from the outside. When cleaning the inside of a case such as a refrigerator or when cleaning the drainage part, pull out the lower part of the drain cap body from the drainage port. When the drain cap is pulled out, the bottom of the drainage receiving part is almost flat, and the drainage port is formed in the center part, so it is easy to clean by draining water for cleaning. Foreign matter such as dust is mainly caught in the drain hole in the upper part of the drain cap, so remove it from the drain cap that has been removed.

[0006]

【Example】

 Hereinafter, an embodiment in which the present invention is applied to a refrigerator will be described. As is well known, the refrigerator has a machine room, the main body is formed into a box shape from the top wall, side wall, bottom wall, etc. of the heat insulator, and an opening / closing door is provided at the front opening of the main body. . And a drainage part is formed on the bottom wall. As shown in FIG. 1A, the bottom wall includes an inner bottom plate 1, an outer plate 2 arranged at a predetermined distance from the inner bottom plate 1, an inner bottom plate 1 and an outer plate 2. And a heat insulating material 3 made of, for example, a hard urethane foam. A drainage portion 10 having a predetermined diameter is formed on a part of the inner bottom plate 1 by drawing, for example. The drainage part 10 is formed from a cylindrical peripheral wall 11 and a bottom plate 12 extending substantially horizontally from the lower end of the peripheral wall 11 toward the center thereof so as to have a substantially bowl shape when viewed from the side. . A drain port 13 into which a main body of a drain cap, which will be described later, can be inserted is opened at a substantially central portion of the bottom plate 12. The drainage pipe 15 has a predetermined length, the inner diameter thereof is substantially equal to the diameter of the drainage port 13, and is fixed to the lower side of the bottom plate 12 by a flange 16 at its upper end so as to be aligned with the drainage port 13. There is.

As shown in FIG. 1B, the drain cap 20 is made of a synthetic resin such as rubber, and has a cylindrical main body portion 21 and a partition portion 3 formed integrally with the main body portion 21. 1. The knob 33 is provided along the periphery of the ceiling. The main body portion 21 is composed of an insertion portion 22 having a relatively small diameter and a flange portion 25 having a relatively large diameter, and ring-shaped ribs 23, 23, ... Are spread over the outer peripheral portion of the insertion portion 22 in multiple stages. Has been formed. The outer diameters of the ribs 23, 23, ... Are slightly larger than the inner diameter of the drain pipe 15. Therefore, when the insertion portion 22 is inserted into the drainage pipe 15, the ribs 23, 23, ... Are compressed and deformed, and the airtight state is maintained. Although the ribs 23, 23, ... Have a substantially trapezoidal sectional shape in the illustrated embodiment, they may be formed into another shape, for example, a triangular shape or a shape having a tapered surface to facilitate insertion. You can also The lower surface 26 of the flange portion 25 having a relatively large diameter is a surface that comes into contact with the bottom plate 12 when the insertion portion 22 of the drain cap 20 is inserted into the drain pipe 15, and a radial center is located at a predetermined height from the lower surface 26. A plurality of holes 27, 27, ... Are formed in the direction. .. communicate with an axial drainage hole 28.

The partition part 31 extends downward in a tubular shape from the peripheral part of the ceiling part 30 of the main body part 21. The lower end 32 is lower than the holes 27, 27, ... Of the flange 25 and higher than the lower surface 26. There is a predetermined gap between the partition 31 and the outer peripheral surface 29 of the flange 25 having a relatively large diameter, and the outer diameter of the partition 31 is the cylindrical peripheral wall 11 that constitutes the drainage section 10. It is set smaller than the inner diameter of.

Next, the operation of the above embodiment will be described. The insertion portion 22 of the main body portion 21 is inserted into the drain pipe 15, and the drain cap 20 is attached to the drain portion 10. When mounted, the lower surface 26 of the flange portion 25 contacts the bottom plate 12, and the ribs 23, 23, ... Are compressed and deformed, so that these contacting portions become airtight. That is, a drainage sump 34 is formed between the cylindrical peripheral wall 11, the outer peripheral surface 29 of the flange portion 25 having a relatively large diameter, and the bottom plate 12. By the way, since the lower end portion 32 of the partition portion 31 is lower than the holes 27, 27, ... Of the flange portion 25 and higher than the lower surface 26, when drainage occurs, it gathers in the drainage portion 10 and then collects in the drainage reservoir 34. The accumulated state is shown in the right half of FIG. The lower end 32 of the partition 31 is submerged in water to airtightly separate the inside N and the outside S from each other. Further, the generated drainage is drained to the outside through the drain holes 27, 27, ... Through the axial drain hole 28 and the drain pipe 15.

When cleaning the inside N or cleaning the drainage section 10, the drain cap 20 is removed from the drainage section 10. Flush water for cleaning if necessary. At this time, if the interior bottom plate 1 is inclined downward toward the drainage section 10, the cleaning water gathers in the drainage section 10 to facilitate cleaning. Unlike the conventional drainage device described above, the drainage pipe does not project into the drainage part 10, so that the drainage pipe 10 does not collect the drainage pipe and drains the drainage pipe 15 to the outside. The solid matter in the refrigerator N is applied to the portion where the flow path is narrowed, but the solid matter applied between the lower end 32 of the partition 31 and the bottom plate 12 is to remove the drain cap 20 from the drainage section 10. Removed by. The solid matter caught in the drain holes 27, 27, ... of the drain cap 20 is removed by, for example, expanding the partition 31 of the drain cap 20 so as to be easily taken out. If a blind plug having a structure in which the holes 27, 27, ... And the partition portion 31 are removed from the drain cap 20 is prepared, it can be conveniently used as the drain cap 20.

Although not shown in the drawings, the present invention can be implemented with a drain cap 20 having the following shape. That is, in the above embodiment, the lower surface 26 of the flange portion 25 having a relatively large diameter comes into contact with the bottom plate 12 and acts as a stopper when being inserted into the drainage pipe 15, but the lower end portion 32 of the partition portion 31 does not contact the bottom plate 12. Alternatively, the lower end 32 of the partition 31 can be used as a stopper. At this time, a plurality of drain through holes or a plurality of cutouts formed by cutting out the lower end surface at predetermined intervals are provided in the vicinity of the lower end portion 32 of the partition portion 31. According to this embodiment, the main body 21 can be formed to have the same diameter. Further, the through hole or the cutout hole also functions as a strainer.

[0012]

[Effect of device]

 As described above, according to the present invention, the drainage part for draining the drain in the case projects downward from the interior bottom plate of the case of the refrigerator or the like in a substantially bowl shape, and the drainage port is formed at the center of the substantially flat bottom part. Since it is composed of the drainage receiving portion having the above and the drainage pipe provided below the drainage port, a structurally clean trap structure can be obtained. Moreover, when the drain cap is attached to the drainage part, a drainage reservoir forming a trap is formed between the part of the drainage part protruding in a substantially bowl shape and the upper part of the main body of the drain cap, and the drain cap can be removed from the drainage part. When removed, the drainage part has only a substantially flat bottom and drainage port, and the effect peculiar to the present invention is obtained in that it can be easily and safely cleaned without being disturbed by projections or the like. Foreign matter such as dust is mainly caught in the drain hole in the upper part of the drain cap, but since the drain cap can be removed from the drainage part, it can be easily removed from the drain cap that can be removed and handled freely. Can also be obtained.

[Brief description of drawings]

FIG. 1 is a view showing an embodiment of the present invention, (a) is a sectional view showing the whole, and (b) is an enlarged perspective view showing an embodiment of a drain cap.

[Explanation of symbols]

1 Interior bottom plate 10
Drainage part 12 Bottom plate 13
Drain cap 22 Insertion part (lower part) 25
Flange (upper part) 27 Hole 30
Ceiling part 31 Partition part 32
Bottom edge

Claims (1)

[Scope of utility model registration request] 1. A combination of a drain part provided at the bottom of a case of a refrigerator or the like for draining the drain in the case and a drain cap attached to the drain part, wherein the drain part is a refrigerator or the like. The case is composed of a drainage receiving portion having a drainage port at the center of a substantially flat bottom portion protruding downward from the interior bottom plate of the case, and a drainage pipe provided below the drainage port, The drain cap includes a main body portion including a lower portion that is airtightly attached to the drainage port of the drainage receiving portion and an upper portion that has a vent hole through which the drainage can be performed in the airtightly attached state, and the main body portion. The partition part is formed integrally with the outer peripheral part of the upper part at a predetermined interval so as to hang down from the ceiling part of the main body part. When attached to the drain of the The drain passage portion, which is located at a predetermined height from the bottom of the drainage receiving portion, is provided near the lower end portion of the partition portion or between the lower end portion and the bottom portion of the drainage receiving portion. It has a trap structure for the drainage part of refrigerators, etc.