JP2005016902A - Refrigerating/freezing showcase - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a refrigerating-freezing showcase provided with a draining device for dispensing with maintenance work such as frequent removal of garbage by comparatively reducing clogging of a drain outlet. <P>SOLUTION: The showcase is provided with a drain trap 1 as the draining device, and the drain trap 1 is provided with a drain receiving member 2 constituting a trap part and a drain screen 3 as a screen member. The drain receiving member 2 is fixed under a draining device fixing member 4, and the drain screen 3 is supported by a ring body 10 provided on an outer peripheral side of a side wall of a screen body 9 in a state that part of slit 12 is positioned above an upper face of a bottom plate part of a heat insulating wall. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a freezer / refrigerated showcase provided with a drain trap as a drainage device.
[0002]
[Prior art]
In the freezer / refrigerated showcase, drainage to prevent the inflow of warm air, moisture, odor, etc., and outflow of cold air to the drain outlet that discharges the defrosted water from the cooler to the outside. As a device, a drain trap is generally used in which the middle part of the rubber tube is bent and fixed in a U shape to configure the trap part. However, it is difficult to remove dust accumulated in the trap part, and maintenance is required. There was a problem that the work could not be performed easily.
In particular, in the case of a stand-alone type showcase, since the cradle under the showcase is set low, it is difficult to perform maintenance work on the drain trap housed in the cradle under the showcase.
In order to solve such problems, conventionally, as a drainage device that enables cleaning of the trap part from the inside of the warehouse, a water storage pipe as a drain receiving member attached below the drainage port at the bottom of the heat insulating wall of the showcase; A configuration of a drain trap provided with a drain screen as a screen member attached to a drain outlet is known (for example, see Patent Document 1).
[0003]
[Patent Document 1]
Japanese Patent Laid-Open No. 05-312461
In the configuration described in Patent Document 1, a trap portion is configured by the large cylindrical portion of the water storage pipe, the middle cylindrical portion protruding upward from the center of the bottom wall of the large cylindrical portion, and the drain screen bottom wall. Sometimes, by removing the drain screen, it is possible to remove dust accumulated on the bottom wall of the water storage pipe from the inside of the warehouse. In addition, a slit as a drain water discharge port is formed in the side wall in the drain screen, and relatively large dust contained in the drain water passing through the slit is stopped on the inner peripheral side of the side wall, thereby allowing the trap part to flow out. It is preventing.
[0005]
[Problems to be solved by the invention]
However, in the drainage device described in Patent Document 1, there is a problem that drain water is likely to leak due to the configuration in which the entire drain screen provided with slits in the side wall is accommodated in the bottom wall of the heat insulating wall. . That is, since dust such as dust in the showcase cabinet and waste of side dishes contained in the drain water accumulates on the side walls in the drain screen, the slit as the drain water discharge port is clogged. Cannot be discharged to the lower drain pipe, and the drain water overflowing from the drain screen causes water leakage from the hole through which the wiring of the fan motor or the like passes.
Therefore, it is necessary to frequently perform maintenance work such as removal of dust in the drain screen, and the labor of the worker is excessive.
[0006]
The present invention is intended to solve the above-described problem, and a drainage device that can eliminate maintenance work such as frequent removal of dust by relatively reducing the clogging of a drain water discharge port. It aims at providing the freezing and refrigeration showcase provided with.
[0007]
[Means for Solving the Problems]
In order to solve the above problems, the present invention provides a drainage device that forms a trap portion for a drainage port formed on a bottom plate of a heat insulating wall, a screen member having a drain water discharge port formed at least on a side wall, and a drain receiver. In the freezing / refrigeration showcase comprising a drainage device comprising a member, the screen member is at least part of a drain water circulation port formed in the side wall with respect to the drainage device fixing member fixed to the drainage port. It supports so that may be located above the bottom plate upper surface of the said heat insulation wall. Thereby, while the drain water circulation port located above the bottom plate upper surface of a heat insulation wall functions as an inflow port, a lower drain water circulation port functions as a drain water discharge port. Accordingly, the dust contained in the drain water is stopped on the outer peripheral side of the upper side wall of the screen main body, and the inflow of the dust etc. into the screen main body is reduced, so that the drain water discharge port is secured and it is difficult for the water to leak. It becomes possible. In addition, even when the drain water distribution port as an inflow port is clogged, the drain water can flow into the drain screen from above the side wall through the accumulated dust. It is not necessary to perform the removal work frequently, and the maintenance interval can be made relatively long.
[0008]
In addition, the screen member is provided with a locking claw that is locked to the locking portion provided in the drainage device fixing member, so that a large amount of the screen member is formed in the trap portion that is configured below the screen body during defrosting. Even when drain water is discharged, it is possible to prevent the screen body from being lifted. Accordingly, it is possible to prevent displacement of the screen member.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is an exploded perspective view showing a drain trap as a drainage device provided in a showcase according to an embodiment of the present invention. 2 and 3 are sectional views showing a state in which the drain trap is attached to the showcase, FIG. 2 is a sectional view taken along line AA shown in FIG. 1, and FIG. 3 is a sectional view taken along line BB shown in FIG. FIG. 4 is a side sectional view showing the entire showcase including the drain trap.
The showcase according to the present embodiment includes a drain trap 1 shown in each drawing as a drainage device. The drain trap 1 includes a drain receiving member 2 constituted by a single nipple, and a drain screen 3 as a screen member. Consists of The drain receiving member 2 and the drain screen 3 are fixed and supported by a drainage device fixing member 4 shown in FIGS.
[0010]
The drain receiving member 2 constituting the drain trap 1 includes an upper-side large-diameter portion 5 whose upper end portion is fixed to the drainage device fixing member 4 and a lower-side small-diameter portion whose unillustrated elbow is connected to the lower end portion. 6. As the bottom plate of the large-diameter portion 5 and the top plate of the small-diameter portion 6, a flat plate portion 7 extending in the central direction from the lower end of the large-diameter portion 5 is formed, and a drain pipe portion standing upward at the central position of the flat plate portion 7 8 is formed. A male screw 5 a that is screwed into a female screw of the drainage device fixing member 4 to be described later is formed on the upper outer peripheral surface of the large-diameter portion 5.
A drain screen 3 constituting the drain trap 1 is provided on the outer peripheral side of the side wall at a position lower than an intermediate position in the height direction of the screen main body 9 and a screen main body 9 formed in a substantially cylindrical cage shape with an open top. The screen body 9 includes a ring body 10 serving as a screen body support portion, and a cylindrical portion 11 having a lower opening is formed at the center of the bottom plate of the screen body 9. The cylindrical portion 11 has a smaller diameter than the large diameter portion 5 of the drain receiving member 2 and a larger diameter than the drain pipe portion 8, and as shown in FIG. 3, each side wall, the flat plate portion 7, and the cylinder The trap portion is constituted by the top plate of the portion 11 (the bottom wall of the screen body 9). A slit 12 having a predetermined width as a drain water circulation port formed so as to extend from the outer peripheral end of the top plate of the cylindrical part 11 to the vicinity of the upper end of the side wall of the screen body 9 is formed on the bottom plate and the side wall of the screen body 9. A ring body mounting portion 13 that is formed over the circumference and horizontally spans the slit 12 is provided at the mounting position of the ring body 10. In the ring body 10, a slit 14 having a predetermined width extending from the side wall of the screen body 8 in the outer peripheral direction is formed over substantially the entire circumference.
In the present embodiment, mainly, the slit 12 above the ring body 10 functions as an inflow port into the screen main body 9, and the slit 12 on the bottom wall side functions as a discharge port to the drain receiving member 2. It becomes.
In addition, a gripping piece 15 formed in a flat plate shape having a predetermined width is provided at a substantially central position on the top surface side of the cylindrical portion 11. Further, as shown in FIGS. 2 and 3, a plurality of protruding pieces 16 are provided on the lower surface side in the vicinity of the outer peripheral edge of the bottom wall of the screen body 9, and a locking claw 17 is provided at the lower end of the protruding piece 16. Is formed. The locking claw 17 can prevent the screen main body 9 from being pushed up when a large amount of drain water flows into the trap portion, and can be removed by pulling it upward while holding the gripping piece 15. Is formed.
[0011]
As shown in FIGS. 2 and 3, the drainage device fixing member 4 to which the drain trap 1 is attached includes a support portion 18 on which an outer peripheral end portion of the ring body 10 of the drain screen 3 is placed and supported on the upper surface side, and a support portion 18. The bottom end of the drain screen 3 is placed and supported on the upper surface side at a lower position than the lower portion, and the engaging portion 19 is provided on the lower surface side to which the engaging claw 17 is engaged.
As a method of fixing the drain receiving member 2 to the drainage device fixing member 4, in this embodiment, as shown in FIGS. 2 and 3, a female screw 4 a formed on the lower inner peripheral surface of the drainage device fixing member 4, and a drain A male screw 5a (not shown in FIG. 1) formed on the outer peripheral surface of the large-diameter portion 5 of the receiving member 2 is screwed and fixed using an adhesive or the like.
[0012]
As shown in FIG. 4, for example, the showcase 20 including the drain trap 1 includes a main body 22 constituted by a heat insulating wall 21, and a product display chamber that is formed in the main body 22 and has a substantially U-shaped cross-sectional view in a front open type. 23 and a gantry 24 for holding the commodity display chamber 23 at an appropriate height in the lower part of the main body 22. A cool air circulation duct 25 is formed on the outer periphery of the merchandise display chamber 23, and a cooler 26 and a blower 27 are provided in the duct 25. A drain port 29 for discharging defrosted water or the like from the cooler 26 in the duct 25 to the outside of the cabinet is formed in the bottom plate portion 28 of the heat insulating wall 21, and the drainage device fixing member 4 is disposed in the drain port 29. The drain trap 1 as a drainage device is fixed and supported by the drainage device fixing member 4.
[0013]
In the showcase 20 according to the present embodiment, the drain receiving member 2 is screwed and fixed to the drainage device fixing member 4 fixed to the drainage port 29, and then carried into the showcase installation place in the store, and the drain screen. 3 and piping members such as elbows not shown are attached. In the present embodiment, since the elbow is formed of a separate member, it is not necessary to consider the mounting direction of the drain receiving member 2.
When the drain screen 3 is attached, the drain screen 3 is pushed from above the drainage device fixing member 4 so that the protruding piece 16 formed in the vicinity of the outer peripheral end of the bottom wall of the screen body 9 is engaged with the drainage device fixing member 4. The locking portion 19 is elastically deformed, and the locking claw 17 is locked to the lower surface side of the locking portion 19, and the outer peripheral end portion of the bottom wall of the screen body 9 is placed and supported on the upper surface of the locking portion 19. The Rukoto. Further, the outer peripheral side end portion of the ring body 10 of the drain screen 3 is placed and supported on the upper surface of the support portion 18 of the drainage device fixing member 4. Thereby, the upper part of the screen body 9 is positioned above the upper surface of the bottom plate part 28 and the lower part of the screen body 9 is accommodated in the bottom plate part 28.
As described above, as shown in FIG. 4, the drain trap 1 as a drainage device is attached to the drainage port 29 of the showcase 20.
[0014]
In the showcase 20 according to the present embodiment, the drain water that has flowed into the screen main body 9 through the slit 12 of the drain screen 3 flows into the large-diameter portion 5 of the drain receiving member 2 as shown by the thick arrows in FIG. It passes through a trap part constituted by the flat plate part 7 and the drain pipe part 8 and the cylindrical part 11 of the drain screen 3 and is discharged from the small diameter part 6.
In this case, the drain screen 3 is supported in a state in which a part of the slit 12 formed on the side wall of the screen body 9 is located above the upper surface of the bottom plate portion 28 of the heat insulating wall 21 (the one-dot chain line in FIGS. 3 and 4). Therefore, mainly the slit 12 above the ring body 10 functions as an inflow port into the screen main body 9, and the slit 12 on the bottom wall side functions as a discharge port to the drain receiving member 2. . Accordingly, relatively large garbage such as dust in the showcase 20 housed in the drain water, side dish products, vegetable waste, etc., is first deposited on the outer peripheral surface of the side wall of the screen body 9 above the ring body 10. . In this case, the ring body 10 functions as a receiving member for dust and the like. Thereby, the inflow of dust or the like into the screen main body 9 is reduced, and the slit 12 on the bottom wall side can be secured as a drain water discharge port, so that water leakage hardly occurs. In this case, even if dust or the like is accumulated on the outer peripheral surface of the side wall and clogging occurs, the drain water can pass through the upper side of the dust or the like and flow into the screen body 9. It will be discharged | emitted by the drain receiving member 2 from the slit 12 of the main body 9 lower part.
Note that dust and the like passing through the slits 12 of the screen body 9 are accumulated in the trap portion.
In addition, when a large amount of drain water is generated as in the defrosting operation, the drain water passing through the trap portion pushes up the drain screen 3, but in this embodiment, the drainage device fixing member 4 is engaged. Since the locking claw 17 that is locked to the stopper 18 is provided, it is possible to prevent the drain screen 3 from being pushed up by the drain water. Accordingly, it is possible to prevent the displacement of the drain screen 3 due to a large amount of drainage.
[0015]
On the other hand, during maintenance work, simple cleaning can be performed by removing dust accumulated on the outer peripheral surface of the side wall of the screen body 9.
Further, when cleaning the trap portion, by holding the grip piece 15 of the screen body 9 and pulling it upward, the locking claw 17 of the screen body 9 comes off from the locking portion 18 of the drainage device fixing member 4, The drain screen 3 can be removed.
In this state, dust accumulated on the bottom surface of the trap portion of the drain receiving member 2 constituting the trap portion is removed from the inside of the warehouse.
[0016]
As described above, in the present embodiment, the drain screen 3 is supported so that the slit 12 at the top of the screen body 9 is positioned above the upper surface of the bottom plate portion 28 of the heat insulating wall 21. It becomes possible to stop dust and the like on the outer peripheral side of the side wall of the screen body 9. Accordingly, since the inflow of dust or the like in the screen body 9 can be reduced, the slit 12 on the bottom wall side of the screen body 9 is secured as a drain water discharge port. Even when dust or the like is accumulated on the outer peripheral side of the side wall, the drain water flows into the screen body 9 through the accumulated dust and passes through the slit 12 at the lower part of the screen body 9 to receive the drain receiving member 2. Because of this, water leakage is less likely to occur.
Further, since only a part on the lower side of the screen body 9 is accommodated in the bottom plate portion 28 of the heat insulating wall 21, the drain receiving member 2 can be formed in a relatively shallow shape. Accordingly, since the trap portion is configured at a relatively shallow position with respect to the bottom plate portion 28, it is easy to remove dust accumulated on the bottom portion of the trap portion.
Further, since the locking claw 17 is provided in the vicinity of the outer peripheral end portion of the bottom wall of the screen body 9 and is locked to the locking portion 19 of the drainage device fixing member 4, a large amount of drain water is trapped during defrosting or the like. Since the drain screen 3 can be prevented from being lifted by flowing into the section, it is possible to prevent the displacement of the drain screen 3 and the like.
[0017]
In the above embodiment, the ring body is provided at a position below the intermediate position in the height direction of the screen body, but the mounting position of the ring body can be set variously, for example, the lower end of the screen body By providing a ring body at the part, all of the slits on the side wall may be positioned above the upper surface of the bottom plate part.
Moreover, although it is supposed that the main body bottom wall of a drain screen and the outer peripheral edge part of a ring body are supported with respect to a drainage device fixing member, it is good also as supporting only with a ring body. Thereby, it becomes possible to make the whole slit located below the ring body function as a drain water discharge port. In this case, the supporting portion that supports the outer peripheral end of the ring body is configured as a locking portion, and the protruding piece and the locking claw on the bottom wall of the main body are provided on the lower surface side of the ring body. The support provided on the outer peripheral side of the side wall of the screen body is not limited to the ring body shown in the above embodiment, and at least a part of the drain water circulation port is provided on the heat insulating wall. Any other shape may be used as long as it can be supported so as to be located above the upper surface of the bottom plate.
Moreover, the shape, width, etc. of the drain water circulation port formed on the side wall of the screen main body can be variously changed.
Further, the drain receiving member is not limited to one constituted by a single nipple, and may be constituted by another member. .
Further, the shape and structure of the showcase, the shape of each member constituting the drain trap, and the like are not limited to the above-described embodiment, and can be variously changed without changing the gist of the present invention.
[0018]
【The invention's effect】
As described above, the freezing / refrigerating showcase of the present invention has the following effects.
Since the drain water circulation port at the upper part of the side wall of the screen member constituting the drain trap as the drainage device is supported so as to be positioned above the upper surface of the bottom plate, the drain water is supplied to the drain water on the outer peripheral side of the upper side wall of the screen body. Since the contained dust and the like are stopped and the inflow of dust and the like into the screen body is reduced, a drain water discharge port is secured and it is possible to make it difficult to leak water. In addition, even when the drain water distribution port as an inflow port is clogged, the drain water can flow into the drain screen from above the side wall through the accumulated dust. It is not necessary to perform the removal work frequently, and the maintenance interval can be made relatively long.
In addition, since the locking piece is provided and locked to the drainage device fixing member, the screen member is prevented from being lifted by a large amount of drain water flowing into the trap part, such as during defrosting. It is possible to prevent displacement of the screen member and the like.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a drain trap as a drainage device provided in a showcase according to an embodiment of the present invention.
FIG. 2 is a cross-sectional view of the main part AA showing the attached state of the drain trap.
FIG. 3 is a cross-sectional view of the main part BB showing the attached state of the drain trap.
FIG. 4 is a cross-sectional view showing a showcase according to an embodiment of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Drain trap 2 Drain receiving member 3 Drain screen 4 Drainage device fixing member 4a Female screw 5 Large diameter part 5a Male screw 6 Small diameter part 7 Flat plate part 8 Drain pipe part 9 Screen main body 10 Ring body 11 Cylindrical part 12 Slit 13 Ring body attachment Portion 14 slit 15 gripping piece 16 projecting piece 17 locking claw 18 support portion 19 locking portion

Claims (2)

As a drainage device that constitutes a trap portion with respect to the drainage port formed on the bottom plate of the heat insulating wall, a refrigeration unit provided with a drainage device comprising at least a screen member having a drain water circulation port formed on the side wall and a drain receiving member. In the refrigerated showcase,
The screen member has at least a part of a drain water circulation port formed on the side wall with respect to a drainage device fixing member fixed to the drainage port of the bottom plate by a support portion provided on the outer peripheral side of the side wall. A refrigerated / refrigerated showcase that is supported so as to be positioned above the upper surface of the bottom plate of the heat insulating wall. The freezing and refrigeration showcase according to claim 1, wherein the screen member is provided with a locking claw that is locked to a lower surface side of a locking portion provided in the drainage device fixing member.

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