JP5116511B2 - Drain trap - Google Patents

Description

  The present invention relates to a drain trap that prevents the entry of dust, off-flavors, insects, or the like from the outside by storing drainage.

  An automatic ice maker suitably used in a kitchen facility such as a coffee shop or a restaurant uses residual ice making water remaining at the completion of ice making operation and melted water generated in an ice storage room where the produced ice blocks are stored. It is configured to discharge to the outside through a drain pipe disposed in the machine room. In the middle of the drain pipe, a drain trap is provided for the purpose of preventing dust, off-flavor, insects, etc. from entering the machine through the drain path.

The drain trap includes an inlet side pipe connected to a first drain pipe that guides waste water generated in the machine to a machine room, and an outlet side pipe connected to a second drain pipe that discharges the waste water generated in the machine to the outside of the machine. The body is configured to be connected in communication with a sealing portion capable of storing water by bending the tubular body into a U shape. Since the ice making residual water and melted water stored in the sealing portion are low temperature, dew condensation occurs on the surface of the sealing portion, and there is a difficulty in wetting the bottom surface of the machine when the dew condensation water drops from the drain trap. Therefore, the sealing part is covered with a heat insulating material (for example, see Non-Patent Document 1), or a water droplet receiver is provided around the drain trap (for example, see Patent Document 2).
Japan Society for Invention and Innovation Technical Bulletin No. 2008-500787 Japanese Patent No. 3962483

  As disclosed in Non-Patent Document 1, in the configuration in which only the sealing portion of the drain trap is covered with a heat insulating material, the dew condensation water generated on the surface of the inlet side tubular body into which low-temperature drainage such as ice making residual water or molten water flows flows. It was not possible to prevent dripping on the bottom of the machine along the surface of the heat insulating material. In addition, although it is possible to coat | cover the whole drain trap with a heat insulating material, in this case, the usage-amount of a heat insulating material increases and the difficulty that cost increases is pointed out.

  The drain trap is configured to fit the inlet side pipe body and the outlet side pipe body to each drain pipe arranged on the machine side, and the workability of arranging the drain trap in the machine room is improved. In consideration, the inlet side pipe body extending upward from the sealing portion can be bent within a required range, and the inlet side pipe body is bent and inserted into the first pipe water pipe. ing. That is, if the entire drain trap is covered with a heat insulating material, the inlet-side tube cannot be bent, which causes a problem that the trap is extremely difficult to attach.

  As disclosed in Patent Document 2, in the configuration in which the water droplet receiver is provided in the outer periphery of the drain trap, it is possible to prevent the condensed water generated on the surface of the drain trap from dripping onto the bottom surface of the apparatus. However, it is not possible to prevent the condensed water generated on the surface of the water droplet receiver itself from dripping onto the bottom surface of the machine, and the fundamental prevention of dripping of the condensed water is not achieved.

  That is, the present invention has been proposed in view of the above-mentioned problems inherent in the drain trap according to the prior art, and it is proposed that the condensed water generated on the pipe surface is dripped. It aims at providing the drain trap which can be prevented.

In order to solve the above problems and achieve the intended purpose, the drainage trap according to the present invention is:
A sealing part capable of storing drainage, connected to the sealing part and extending upward, and an inlet-side tube body for allowing drainage to flow into the sealing part; and connected to the sealing part from the sealing part In a drain trap comprising an outlet side pipe body that discharges the waste water of
Comprising a heat insulator covering the sealing portion and the outlet side tube;
The heat insulator is formed with a dew receiving portion that opens upward and receives dew condensation water flowing on the surface of the inlet side tube.
According to the first aspect of the present invention, the dew receiving part provided in the heat insulator can receive the dew condensation water generated on the surface of the inlet side pipe body, and the dew condensation water can be prevented from dripping from the drain trap. it can. Moreover, since the dew receiving part is formed on the heat insulator itself, it is not necessary to form the dew receiving part with a separate member or further insulate the dew receiving part of the separate member, so that the manufacturing cost can be kept low.

The gist of the invention according to claim 2 is that the inlet-side tube body has a flexible portion that extends upwardly and tilts away from the dew receiving portion and is flexible in the vertical direction.
According to the second aspect of the present invention, since the flexible portion of the inlet tube is spaced above the dew receiving portion, the dew receiving portion does not hinder the flexible portion from flexing. Therefore, it is possible to prevent the condensed water generated on the surface of the inlet side pipe from dripping while ensuring the ease of mounting the drain trap by flexing the flexible portion.

In the invention which concerns on Claim 3, the said heat insulating body is equipped with the heat insulation part which covers the upper surface of the said flexible part which inclines, Between the edge by the side of the flexible part in this heat insulation part, and a flexible part, the said The gist is that a groove communicating with the dew receiving portion is formed.
According to invention of Claim 3, since the groove | channel connected to a dew receiving part was formed between the heat insulation part which covers the upper surface of a flexible part, and a flexible part, the dew condensation water which flows the upper surface of a flexible part Can be guided by the groove to the dew receiving part, and the condensed water flowing through the flexible part can be prevented from dripping from the drain trap.

  According to the drain trap according to the present invention, it is possible to prevent the condensed water from dripping.

  Next, the drain trap according to the present invention will be described below with reference to the accompanying drawings by way of preferred embodiments. In the embodiment, a case where a drain trap is provided in an automatic ice maker will be described.

  As shown in FIG. 3, the automatic ice making machine in which the drain trap according to the embodiment of the present invention is arranged is configured such that the inside of the substantially box-shaped housing 10 is vertically divided and the upper side is an ice storage chamber 12. In addition, a lower portion of the ice storage chamber 12 is configured as a machine chamber 14. An ice making mechanism 16 is disposed above the ice storage chamber 12, and ice blocks produced by the ice making mechanism 16 fall and be stored in the ice storage chamber 12. In the machine room 14, components such as a condenser 20, a cooling fan 22, and a compressor 24 constituting the refrigeration apparatus 18 are disposed, and an evaporator 26 connected to the refrigeration apparatus 18 is provided in an ice making chamber 28 of the ice making mechanism 16. It is arranged.

  The ice making mechanism 16 includes the ice making chamber 28 having a large number of ice making chambers, a water tray 30, an ice making water tank 32 disposed below the water tray 30, and a tilting mechanism 34 for tilting the water tray 30 together with the ice making water tank 32. Etc., and is suspended from the housing 10 via an attachment member 36. The water tray 30 is pivotally supported on one side in the width direction with respect to the mounting member 36, and the water tray 30 is closed horizontally by closing the ice making chamber 28 by the operation of the tilting mechanism 34. The posture can be changed between the formed state and the inclined open state with the ice making chamber 28 open.

  The ice making water tank 32 is provided with a circulation pump 38, and ice making water stored in the ice making water tank 32 during the ice making process is transferred from the water tray 30 to each ice making chamber of the ice making chamber 28 by the circulation pump 38. Configured to squirt. In the automatic ice making machine, when ice making of the ice block is completed in the ice making chamber 28, the tilting mechanism 34 is operated to tilt and displace the water dish 30 from the closed state to the open state, whereby the generated ice block is stored in the ice storage chamber. 12 is allowed to fall to the bottom. The ice making water tank 32 is configured to discharge ice making water (ice making residual water) remaining in the tank to a drain tray 40 disposed below when the ice making water tank 32 is tilted with the tilting displacement of the water tray 30. Is done. An upper end portion of a first drain pipe 42 is connected to the drain tray 40, and a lower end portion of the first drain pipe 42 extends into the machine room 14, and a drain trap 44 communicates with the first drain pipe 42. Connected (see FIG. 1). Note that a second drain pipe 46 is disposed in the machine room 14, the second drain pipe 46 is connected to the drain trap 44, and the ice making residual water from the drain tray 40 is the first drain pipe 42. In addition, it is configured to be discharged out of the apparatus through the drain trap 44 and the second drain pipe 46. In addition, an ice storage drainage pipe (not shown) that opens at the bottom of the ice storage chamber 12 is connected to the first drainage pipe 42, and the melted water generated by melting of the ice block in the ice storage chamber 12 is The ice storage chamber drain pipe and the first drain pipe 42 flow into the drain trap 44.

  As shown in FIG. 1, the drain trap 44 is connected to a sealing portion 48 capable of storing drainage by bending a tubular body in a U shape, and one first tubular portion 48 a of the sealing portion 48. An inlet-side tube body 50 extending upward, an outlet-side tube body 52 connected to the other second tube portion 48b of the sealing portion 48 and extending sideways, and a sealing portion 48 and a heat insulator 54 surrounding the outlet side pipe body 52. The inlet side pipe body 50, the sealing part 48, and the outlet side pipe body 52 of the drain trap 44 are made of a transparent resin and configured so that the internal state can be visually recognized from the outside.

  The inlet side pipe body 50 of the drain trap 44 faces between the connection part 50 a to which the lower end of the first drain pipe 42 is connected, and the connection part 50 a and the first pipe part 48 a of the sealing part 48. It consists of the flexible part 50b. The flexible portion 50b is inclined upward from the first tubular portion 48a in the extending direction of the outlet side tubular body 52, and the flexible portion 50b is flexed downward to position the connecting portion 50a. Can be lowered (refer to the two-dot chain line in FIG. 1).

  The heat insulator 54 basically includes a first heat insulating portion 56 that covers the sealing portion 48 and a second heat insulating portion 58 that covers the outlet side pipe body 52. The heat insulator 54 includes a third heat insulating portion (heat insulating portion) 60 that covers a part of the flexible portion 50 b in the inlet side pipe body 50. As shown in FIG. 2, a dew receiving part 62 that opens upward is recessed on the upper surface of the second heat insulating part 58, and the inlet side pipe body 50 faces the dew receiving part 62. . That is, the inlet-side tube body 50 extends so that the flexible portion 50b is inclined upward and spaced above the dew receiving portion 62, and the connecting portion 50a extends vertically upward from the upper end of the flexible portion 50b. In addition, the entire inlet side pipe body 50 is spaced above the dew receiving portion 62. In addition, the inner bottom surface of the dew receiving portion 62 and the flexible portion 50b can be provided in such an amount that the connecting portion 50a can be lowered to the position where it can be inserted into the first drain pipe 42 from below when the drain trap 44 is attached as will be described later. The flexible portions 50b are spaced apart so as to be allowed to flex downward.

  The third heat insulating part 60 is formed so as to surround the side opposite to the second heat insulating part 58 (the upper side surface of the flexible part 50b) and both sides of the flexible part 50b across the flexible part 50b. It is connected to the receiving part 62. An upper end edge portion of the third heat insulating portion 60 is formed in a mountain shape, and an inclined surface 60a that is inclined downward from the top portion toward the flexible portion 50b side is formed. The lower end portion of the inclined surface 60a is notched at a position separated from the flexible portion 50b by a predetermined length, and a groove 64 is formed between the flexible portion 50b and the third heat insulating portion 60 by the notch portion 60b. Configured to do. The groove 64 communicates with the dew receiving portion 62 so that the condensed water flowing on the surface of the flexible portion 50 b and flowing into the groove 64 can be guided to the dew receiving portion 62.

  As shown in FIG. 4, the machine room 14 defined on the lower side of the housing 10 includes an air-cooled condenser 20 constituting the refrigeration apparatus 18 at a position biased to the right side (one side), The cooling fan 22 and the compressor 24 are arranged in order from the front side to the rear side on the base plate 66 constituting the bottom of the machine room 14. A rectangular opening 10a that opens to the front is formed in the front portion of the housing 10 corresponding to the machine room 14 (see FIG. 3), and the opening 10a is closed by a front panel (not shown) so as to be opened and closed. It is configured to be. In the front panel, a plurality of air suction ports are formed at positions on the right side corresponding to the condenser 20, and a plurality of air discharge ports are formed at positions on the left side (the other side). . Then, by operating the cooling fan 22, external air is sucked into the machine chamber 14 from the air suction port, and the condenser 20 and the compressor 24 are air-cooled by heat exchange with the air, and the air after heat exchange is The air is discharged from the air outlet. The base plate 66 of the housing 10 is provided with an electrical box 68 containing electrical components such as a microcomputer board for controlling the operation of the refrigeration apparatus 18 at a position biased to the left side.

  The drain trap 44 is disposed in the machine chamber 14 in a region where air flows after heat exchange with the condenser 20 and the compressor 24. Specifically, as shown in FIG. 4, a drain trap 44 is disposed on the left side of the compressor 24 in the machine room 14 and behind the electrical box 68, and dew condensation water stored in the dew receiving portion 62 is It is comprised so that it can evaporate with the air after heat-exchanging between the condenser 20 and the compressor 24. FIG.

(Effects of Example)
Next, the operation of the drain trap according to the embodiment will be described below.

  When the drain trap 44 is disposed in the machine room 14, the outlet side pipe body 52 of the drain trap 44 is fitted into the second drain pipe 46 already disposed in the machine chamber 14. Next, the inlet side pipe body 50 of the drain trap 44 is fitted into the first drain pipe 42 that is already disposed in the machine room 14. In this case, the inlet-side tube 50 in the drain trap 44 is not restricted by the heat insulator 54, and the flexible portion 50b can be flexed in the vertical direction. Therefore, as shown by a two-dot chain line in FIG. The connecting portion 50a can be easily inserted into the first drain pipe 42 by lowering the position of the connecting portion 50a by flexing the flexible portion 50b downward. That is, the drain trap 44 can be easily attached by making the flexible portion 50b flexible with respect to the first drain pipe 42 and the second drain pipe 46 already arranged in the machine room 14.

  When the operation of the automatic ice making machine is started and the ice making process is completed, the ice blocks generated in the ice making chamber 28 are discharged to the ice storage chamber 12 and the ice making residual water remaining in the ice making water tank 32 is drained. It is discharged to the tray 40. The ice making residual water discharged to the drain tray 40 flows into the drain trap 44 through the first drain pipe 42. Also, melt water generated by melting ice blocks in the ice storage chamber 12 flows into the drain trap 44 through the ice storage chamber drain pipe and the first drain pipe 42.

  Most of the wastewater such as ice making residual water and melted water flowing into the drain trap 44 flows into the second drain pipe 46 through the sealing portion 48 and the outlet side pipe body 52 and is discharged outside the apparatus. A part of the drainage is stored in the sealing portion 48 to block the drainage path, and dust, off-flavor, insects and the like are prevented from entering the inside of the machine through the drainage path. Since the sealing portion 48 and the outlet side tubular body 52 are entirely covered with the heat insulating body 54 (the first heat insulating portion 56 and the second heat insulating portion 58), the sealing portion 48 and the outlet side tubular body 52 are Condensation on the surface is prevented. In addition, the inlet side pipe body 50 of the drain trap 44 has a part which is not covered with the heat insulator 54 for attachment, and dew condensation occurs on the surface of the part. In this case, since the dew receiving part 62 is located below the inlet side pipe body 50, the dew condensation water flowing on the surface of the inlet side pipe body 50 is received by the dew receiving part 62, and the machine chamber 14. It does not drip on the inner bottom surface of.

  Further, the dew condensation water flowing on the surface (upper side surface) facing the opposite side of the dew receiving portion 62 in the inlet side pipe body 50 reaches the upper end edge of the third heat insulating portion 60. In this case, since the inclined surface 60a inclined downward toward the flexible part 50b is formed in the third heat insulating part 60, the dew condensation water flowing on the surface of the flexible part 50b is outside the third heat insulating part 60. It is prevented that it flows into. Moreover, since the groove | channel 64 connected to the dew receiving part 62 is formed between the flexible part 50b by the notch part 60b formed in the 3rd heat insulation part 60, it enters into the groove | channel 64 from the surface of this flexible part 50b. The condensed water can be allowed to flow to the dew receiving part 62.

  In the situation where the cooling fan 22 is operated during the operation of the automatic ice making machine, external air is sucked into the machine chamber 14 from the air suction port of the front panel, as shown in FIG. The air exchanges heat with the condenser 20, and then blows out from the cooling fan 22 toward the compressor 24. After heat exchange with the compressor 24, the air enters the machine chamber 14. To the left and discharged from the air outlet of the front panel to the outside.

  The drain trap 44 disposed in the machine room 14 is located in a region where air heated by heat exchange with the compressor 24 flows. Therefore, the dew condensation water stored in the dew receiving part 62 is exposed to the air whose temperature has increased, and the dew condensation water evaporates. That is, the dew condensation water is not stored in the dew receiving part 62 indefinitely, and it is prevented that the dew condensation water overflows from the dew receiving part 62 and wets the inner bottom surface of the machine room 14.

  That is, in the drain trap 44 of the embodiment, a dew receiving part 62 is formed at a position corresponding to the space on the heat insulator 54 that secures a space for allowing the inlet side pipe body 50 to be flexible. The dew condensation water generated on the surface of the pipe body 50 is received by the dew receiving part 62. Therefore, heat insulation can be performed without hindering the attachment of the drain trap 44 to the automatic ice making machine, and the condensation water can be prevented from dripping. In addition, since the dew receiving part 62 is formed on the heat insulator itself, the manufacturing cost can be reduced as compared with the case where the dew receiving part 62 is formed by another member, and the dew receiving part itself needs to be further insulated. Nor. Further, since the entire drain trap 44 is not covered with the heat insulator 54, the inside of the transparent drain trap 44 can be visually recognized from the portion not covered with the heat insulator 54, and the clogging of the drain trap 44 is insulated. It can be confirmed from the outside without removing the body 54.

(Example of change)
The present application is not limited to the configuration of the above-described embodiment, and other configurations can be appropriately employed.
1. In the embodiments, the case where the drain trap is disposed in the automatic ice making machine has been described. However, the present invention is not limited to this, and various devices such as a refrigerator and a refrigerator that may cause condensation on the surface of the drain trap. Can be adopted.
2. In the embodiment, the outlet side tubular body is configured to extend laterally. However, the outlet side tubular body may be configured to extend downward.

It is sectional drawing of the drain trap which concerns on an Example. It is a schematic perspective view of the drain trap concerning an example. 1 is a schematic perspective view of an automatic ice making machine according to an embodiment. It is explanatory drawing which shows the arrangement | positioning relationship of each apparatus in the machine room of the automatic ice making machine which concerns on an Example.

Explanation of symbols

48 sealing part, 50 inlet side pipe body, 50b flexible part, 52 outlet side pipe body, 54 heat insulating body 60 third heat insulating part (heat insulating part), 62 dew receiving part, 64 groove

Claims (3)

A sealing portion (48) capable of storing drainage; and an inlet-side tube (50) connected to the sealing portion (48) and extending upward, and allowing drainage to flow into the sealing portion (48); In a drainage trap comprising an outlet side pipe body (52) connected to the sealing part (48) and discharging drainage from the sealing part (48),
A heat insulator (54) covering the sealing portion (48) and the outlet side pipe body (52),
A drain trap, characterized in that a dew receiving part (62) is formed in the heat insulating body (54) to receive dew condensation water that opens upward and flows on a surface of the inlet side pipe body (50).   The inlet-side tube (50) has a flexible portion (50b) that extends upwardly and inclines away from the dew receiving portion (62) and is flexible in the vertical direction. Drain trap.   The heat insulator (54) includes a heat insulating portion (60) that covers an upper surface of the flexible portion (50b) that is inclined, and the end of the heat insulating portion (60) on the flexible portion (50b) side is flexible. The drainage trap according to claim 2, wherein a groove (64) communicating with the dew receiving portion (62) is formed between the portion (50b) and the portion (50b).

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