JP2004353909A - Freezing/refrigerating showcase - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a freezing/refrigerating showcase having a drain device easy in installation of the drain device, particularly, installation work even in a lower stand of the showcase of setting a thermally insulating wall bottom part low. <P>SOLUTION: A drain trap 11 is supported and fixed in the stand 5 of the flat showcase 1; and is composed of a support member 13 fixed to a bottom plate part 9 of a thermally insulating wall 2, and a drain receiving member 14 detachably installed on an under surface of the support member 13. A support part 16 of the support member 13 is provided with a plurality of guide parts 17 of a cross-sectional view substantially U shape opening on the inner peripheral side in an outer peripheral end part, and a positioning part 18 composed of a downwardly extending cylindrical projection piece between a drain pipe part 15 and a guide part 17. A plurality of outwardly projecting support pieces 19 are arranged in an upper end part of the drain receiving member 14 in response to the guide part 17. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a refrigerated / refrigerated showcase provided with a drain trap as a drainage device.
[0002]
[Prior art]
In the freezing and refrigeration showcase, drainage to prevent the inflow of warm air, moisture, odor, etc., and the outflow of cool air from the outside of the refrigerator to the drain outlet for discharging the drainage such as defrost water from the cooler to the outside of the refrigerator. As a device, a drain trap having a trap portion formed by bending and fixing a middle portion of a rubber pipe in a U-shape is generally used. However, it is difficult to attach and remove the drain trap, and the trap portion is difficult. There is a problem that it is difficult to remove dust and the like deposited on the surface, and maintenance work cannot be easily performed. Conventionally, in order to solve such a problem, a configuration using a drain trap including a guide portion formed at the bottom of the heat insulating wall and a container-shaped drainage receiving member detachably attached to the guide portion from below. Is known (for example, see Patent Document 1).
[0003]
[Patent Document 1]
JP-A-06-018146 (pages 3, 4; FIGS. 1, 5, 6)
[0004]
In the configuration described in Patent Literature 1, the container-shaped drainage receiving member that forms the drain trap has a locking claw and a holding side that elastically deforms, and the locking claw is inserted into one guide portion formed on the lower surface of the heat insulating wall. After locking, the upper end portion of the holding side is inserted into the other guide portion, and the narrow portion of the holding side is locked to the protruding portion of the guide portion to attach the drainage receiving member. Inside the drainage receiving member, a communication portion provided with an opening for discharging drainage in the drainage receiving member to the outside is provided, and the communication portion and a drainage pipe provided at an opening on the lower surface of the heat insulating wall are provided. The member constitutes a trap section.
[0005]
[Problems to be solved by the invention]
However, the configuration described in Patent Literature 1 has a problem that the detaching operation can be easily performed, but the attaching operation is difficult. That is, in order to stably support the drainage receiving member, the opening width and the like of the engaging portion into which the locking claw is inserted are generally formed to be small. There has been a problem that an aligning operation is required, and the operation must be performed while visually recognizing the position of the engaging portion from below. In particular, recently, for frozen and refrigerated showcases, there is a tendency to lower the floor of the heat insulating wall in order to secure the maximum display space, so work is performed while visually checking the position of the guide section. Therefore, it was necessary to take a lower posture, and the installation work became more difficult in a store with a small installation space.
[0006]
SUMMARY OF THE INVENTION The present invention is to solve the above-mentioned problem, and can easily perform installation work of a drainage device, particularly, installation work in a lower frame of a showcase in which a bottom portion of a heat insulating wall is set to be low. An object of the present invention is to provide a refrigerated / refrigerated showcase provided with a drainage device that can be stably supported on the bottom.
[0007]
[Means for Solving the Problems]
In order to solve the above-mentioned problems, the present invention provides a refrigerated / refrigerated showcase including a drainage device that constitutes a trap portion for a drainage hole formed in a bottom plate of a heat insulating wall. A support member fixed to the bottom plate, and a drainage receiving member detachably attached to the lower surface side of the support member, the support member includes a drain pipe portion communicating with the drain port, and a drain pipe portion. A plate-shaped support portion formed on the outer peripheral surface and fixed to the bottom plate lower surface side of the heat insulating wall, wherein the support portion has a substantially arc shape in plan view on the lower surface side, and a cross section opened to the inner peripheral side. A plurality of substantially U-shaped guide portions, and a positioning portion projecting below a lower end surface of the guide portion between the drainage pipe portion and the guide portion, wherein the drainage receiving member is Corresponds to the multiple guides at the upper end of the bottomed cylindrical container Te, where possible width between the guide portions, and characterized in that it has a plurality of support pieces formed with the guide portion in a slidable thickness. Thereby, the positioning of the drainage receiving member is facilitated, and the mounting operation can be performed without visually confirming the mounting position from below.
[0008]
Further, the drainage receiving member has a plurality of drainage holes formed at predetermined intervals in a circumferential direction over substantially the entire circumference of the side wall, and the drainage holes are located at lower end openings of the drainage pipe portion. By being located above, it is possible to function as a trap in almost all directions, and it is possible to improve drainage capacity.
[0009]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a cross-sectional view showing an example in which the present invention is applied to a flat showcase as a frozen / refrigerated showcase provided with a drain trap according to one embodiment of the present invention, and FIGS. FIG. 2 is a view showing a drain trap as a drain device provided in the drain trap, FIG. 2 is a sectional view of a main part for explaining a flow of drain water in the drain trap, FIG. 3 is an exploded perspective view showing the drain trap, and FIG. It is a bottom view which shows the support member which comprises. In FIG. 2, hatching other than the drain trap is omitted. FIG. 3 shows a state in which the support member constituting the drain trap is fixed to the bottom plate of the showcase heat insulating wall.
As shown in FIG. 1, a flat showcase 1 according to the present embodiment has a box-shaped product storage unit 4 having an open top in a main body 3 formed by a heat insulating wall 2. At the lower part, there is a gantry 5 for holding the product storage unit 4 at an appropriate height. A duct 6 for circulating cool air is formed between the outer periphery of the product storage section 4 and the product storage sections 4, 4, and a cooler 7 and a blower 8 are provided in the duct 6.
The bottom plate 9 of the heat insulating wall 2 is provided with a drain port member 10 for discharging defrost water and the like from the cooler 7 in the duct 6 to the outside of the refrigerator.
[0010]
In the present embodiment, a drain trap 11 as a drain device provided with a drain pipe communicating with the through hole of the drain port member 10 is fixed in the gantry 5. Below the drain trap 11, a drain tray 12 for storing defrost water and the like discharged from the drain trap 11 is provided.
The drain trap 11 includes a support member 13 fixed to the bottom plate 9 of the heat insulating wall 2, and a drainage receiving member 14 detachably attached to a lower surface of the support member 13. As shown in FIG. 2, the support member 13 has a drain pipe portion 15 communicating with a through hole of a drain port member 10 provided in the bottom plate portion 9 and a substantially middle portion in the height direction on an outer peripheral surface of the drain pipe portion 15. And a supporting portion 16 of the drainage receiving member 14 formed in a substantially disk shape near the position. In this case, for example, on the outer peripheral surface near the upper end of the drain pipe portion 15, a male screw to be screwed into a female screw formed at the lower end inner peripheral portion of the drain port member 10 is formed. The support member 13 is fixed to the bottom plate portion 9 by screwing the portion 15.
[0011]
As shown in FIGS. 3 and 4, a plurality of substantially arc-shaped guide portions 17 extending along the circumferential direction on the lower surface side are provided at predetermined intervals on the outer peripheral end of the support portion 16 constituting the support member 13. Is formed. Each guide portion 17 is formed so as to correspond to the outer peripheral shape of the drainage receiving member 14 described later. As shown in FIGS. 1 and 2, the guide portion 17 is formed in a substantially U-shape in cross section that opens to the inner peripheral side, and as shown in FIG. 4, has an opening 17 a at the front end side in the counterclockwise direction. And has a closing portion 17b on the rear end side. Further, between the drain pipe section 15 and the guide section 17, a positioning section 18 formed of a cylindrical projecting piece extending downward is provided. The positioning portion 18 is formed to have such a small diameter as to have a gap at a predetermined interval with respect to the inner peripheral surface of the drainage receiving member 14, and the lower end of the positioning portion 18 is located below the lower end surface of the guide portion 17 and will be described later. The drainage receiving member 14 is formed at a height that does not block the drainage hole.
[0012]
As shown in FIG. 3, the drainage receiving member 14 is formed of a bottomed cylindrical container body, and a plurality of support pieces 19 protruding outward corresponding to the guide portions 17 are provided at the upper end. Have been. The support piece 19 is formed to have such a width that it can be inserted into the concave portion 17c between the guide portions 17 and 17 of the support portion 16 shown in FIG. ing. A plurality of rectangular drain holes 20 are formed on the side wall of the drain receiving member 14 so that the drain receiving member 14 is positioned above the lower end opening of the drain pipe 15 with the drain receiving member 14 supported by the support member 16. Have been. The drain holes 20 are formed around the entire drain receiving member 14 at predetermined intervals in the circumferential direction.
[0013]
As shown by the arrow in FIG. 2, the drain trap 11 forms a substantially U-shaped trap portion by the drain pipe 15 of the support member 13, the bottom of the drain receiving member 14, and the drain hole 20. In this case, since the drain hole 20 is formed over substantially the entire circumference, it is possible to function substantially the entire circumference of the drain trap 11 as a trap portion.
[0014]
In the flat showcase 1 configured as described above, the supporting member 13 is connected to the drain port member 10 formed in advance on the bottom plate 9 of the heat insulating wall 2 so that the through hole and the drain pipe section 15 communicate with each other. Is fixed.
When attaching the drainage receiving member 14, after removing a front panel (not shown) attached to the gantry 5 of the flat type showcase 1, the drainage receiving member 14 is aligned with the support member 13. For positioning in this case, the positioning portion 18 may be positioned inside the inner peripheral surface of the drainage receiving member 14 in a state where the upper end surface of the support piece 19 is in contact with the lower end surface of the guide portion 17. No fine positioning is required. In this state, after the drainage receiving member 14 is slid and rotated so that the support piece 18 can be inserted into the concave portion 17c between the guide portions 17, 17, the drainage receiving member 14 is lifted upward. Further, the drainage receiving member 14 is rotated so that the inside of the guide portion 17 is slid clockwise from the opening 17a of the guide portion 17 to a position where it contacts the closing portion 17b, and the support piece 19 is supported on the bottom of the guide portion 17. By doing so, the drainage receiving member 14 is supported and fixed to the support portion 16.
[0015]
On the other hand, when removing the drainage receiving member 14 during maintenance such as removal of dust accumulated on the bottom of the drain trap 11, after removing the front panel (not shown) attached to the gantry 5, the drainage receiving member 14 is supported. After rotating the drainage receiving member 14 to slide the piece 19 counterclockwise from the closing portion 17b to the concave portion 17c between the guide portions 17 and 17, the removal is performed by dropping the drainage receiving member 14 downward.
[0016]
As described above, in the present embodiment, the drain trap 11 accommodated in the gantry 5 of the flat type showcase 1 is attached to and detached from the support member 13 fixed to the bottom plate 9 of the heat insulating wall 2 and the support member 13. A plurality of guide portions 17 each having a substantially U-shape in cross section extending in the circumferential direction are formed on a lower surface of an outer peripheral end of the support member 13 and a drain pipe. A positioning portion 18 protruding downward between the portion 15 and the guide portion 17 is formed, and the drainage receiving member 14 can be inserted into the concave portion 17c between the guide portions 17 corresponding to the plurality of guide portions 17. Since the plurality of support pieces 19 having a small width and a thickness slidable in the guide portion 17 are provided, the positioning of the drainage receiving member 14 is facilitated, and the guide portion 17 and the Inside the guide part 17 The slidable support piece 19, which facilitates attachment and detachment of the drainage receiving member 14. In particular, at the time of mounting, since it is possible to perform positioning based on the positioning member 18 and the concave portion 17c, fine positioning of the drainage receiving member 14 becomes unnecessary, and work is not performed while visually recognizing from below. It will be good. Therefore, installation work can be easily performed even in a store with a small space. Further, since the support piece 19 is supported in the guide portion 17, the drainage receiving member 14 can be stably supported and fixed to the support member 13.
Further, instead of providing drainage pipes in the drainage receiving member 14, a plurality of drainage holes are formed, so that the entire inside of the drainage receiving member 14 can be used as a trap portion. Therefore, a maintenance interval such as removal of dust accumulated in the drainage receiving member 14 can be lengthened. In particular, in the present embodiment, the drain holes are provided at predetermined intervals in the circumferential direction over substantially the entire circumference, so that it is possible to function as a trap in almost all directions, Can be improved. Further, since the pipe is not provided in the drainage receiving member 14 as in the configuration described in Patent Literature 1, dust is not clogged in fine gaps such as the root of the pipe, and the inside of the drainage receiving member 14 during maintenance is not included. The work of removing dust and the like becomes easy.
[0017]
In the present embodiment, an example in which two guide portions and two support pieces are provided is shown. However, the present invention is not limited to this, and the number of guide portions and support pieces corresponds to each other. If so, various settings can be made.
In addition, the support portion is formed in a disk shape, but is not limited to this, and the support portion may be formed in a rectangular plate shape. Further, the position where the guide portion is provided is not necessarily limited to the outer peripheral end of the support portion, and may be provided at a position other than the outer peripheral end. Further, it is not always necessary to form the guide portion corresponding to the outer peripheral shape of the drainage receiving member, and it is sufficient that each arc-shaped guide portion is provided at a position where each support piece of the drainage receiving member can be supported. Therefore, the shape of the drainage receiving member may be a rectangular tube.
Further, as a method of fixing the support member, the support portion may be directly fixed to the bottom plate portion with a screw or the like.
Further, the positioning portion is not necessarily limited to a cylindrical shape, and may have another shape as long as it projects below the lower end surface of the guide portion and can position the drainage receiving member.
Also, the number and shape of the drain holes can be variously set.
In the above-described embodiment, an example in which the present invention is applied to a flat type showcase is shown. However, the present invention is not limited to this, and the present invention can be applied to other types of showcases.
[0018]
【The invention's effect】
As described above, according to the refrigerated / refrigerated showcase of the present invention, the following effects can be obtained.
(1) The concave portion between the positioning portion and the guide portion provided on the supporting member constituting the drain trap as a drainage device facilitates the positioning of the drainage receiving member, and allows the inside of the stand of the showcase to be visually recognized from below. There is no need to perform mounting work.
(2) Further, since the supporting piece of the drainage receiving member is supported in the guide portion formed in a substantially U-shaped cross section, the drainage receiving member can be stably supported by the supporting member. Become.
(3) Further, the drainage receiving member has a plurality of drainage holes formed at predetermined intervals in the circumferential direction over substantially the entire circumference of the side wall, and the drainage hole is a lower end of the drainage pipe portion. By being located above the opening, it is possible to function as a trap in almost all directions, and it is possible to improve drainage capacity.
[Brief description of the drawings]
FIG. 1 is a sectional view showing an entire showcase according to an embodiment of the present invention.
FIG. 2 is an enlarged cross-sectional view illustrating a trap structure of a drain trap provided in a showcase.
FIG. 3 is an exploded perspective view showing a drain trap provided in the showcase.
FIG. 4 is a bottom view showing a support member constituting a drain trap provided in the showcase.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Flat type showcase 2 Insulated wall 3 Main body 4 Product storage part 5 Stand 6 Duct 7 Cooler 8 Blower 9 Bottom plate part 10 Drain port member 11 Drain trap 12 Drain tray 13 Support member 14 Drain receiving member 15 Drain pipe part 16 Support part 17 guide part 17a opening part 17b closing part 17c concave part 18 positioning part 19 supporting piece 20 drain hole

Claims (2)

For a drainage hole formed in the bottom plate of the heat insulation wall, in a refrigerated / refrigerated showcase equipped with a drainage device constituting a trap portion,
The drainage device includes a support member fixed to the bottom plate of the heat insulating wall, and a drainage receiving member detachably attached to a lower surface side of the support member,
The support member includes a drain pipe portion communicating with the drain port, and a plate-shaped support portion formed on an outer peripheral surface of the drain pipe portion and fixed to a bottom plate lower surface side of the heat insulating wall. The portion has a substantially arcuate shape in plan view on the lower surface side, a plurality of guide portions having a substantially U-shape in cross section opened in the inner peripheral side, and between the drain pipe portion and the guide portion, the guide portion of A positioning portion that protrudes below the lower end surface,
The drainage receiving member has a width at the upper end portion of the bottomed cylindrical container body, corresponding to the plurality of guide portions, a width that can be inserted into a concave portion between the guide portions, and is slidable in the guide portion. A refrigerated / refrigerated showcase comprising a plurality of support pieces formed with a thickness. The drainage receiving member has a plurality of drainage holes formed at predetermined intervals in the circumferential direction over substantially the entire circumference of the side wall, and the drainage holes are located above a lower end opening of the drainage pipe portion. The refrigerated / refrigerated showcase according to claim 1, wherein

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