JP2010255928A - Drainage structure for ice making machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent overflow of drain water from a drain pan. <P>SOLUTION: The ice making machine 40 includes the drain pan 42 provided below an ice making mechanism 20 disposed in an ice storage chamber 12a internally partitioned in a box 12 and receiving water flowing down from the ice making mechanism 20, a drain port 36 provided in the box 12 facing the ice storage chamber 12a, and a drain pipe 32 with an upper end connected to the drain pan 42 and a lower end inserted into the drain port 36. A cylindrical flow control member 58 surrounding an outlet 30 is protrudedly provided in the drain pan 42. A flow control hole 60a smaller than the outlet 30 and opened sideways is formed in a sidewall 60 of the flow control member 58. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

  The present invention relates to a drainage structure of an ice making machine that drains from a drain pan provided below an ice making mechanism to a drain outlet provided in a box through a drain pipe.

  As an ice making machine, for example, there is one provided with a closed cell type ice making mechanism 20 as shown in FIG. In the ice making machine 10, an ice storage chamber 12a is defined inside a box 12 having a heat insulating structure, and an ice making mechanism 20 for producing ice blocks is disposed above the ice storage chamber 12a. Further, a cabinet 16 is juxtaposed on one side of the box 12, and basic components such as a condenser, a compressor, a fan motor, etc. constituting an refrigeration apparatus, an electrical panel, etc. (in the machine room) ( (None of these are shown) are arranged, and are arranged in the ice making mechanism 20 so as to circulate the refrigerant to the evaporator 18 constituting the refrigeration apparatus. Reference numeral 21 denotes a leg portion that is disposed on the outer bottom surface of the box body 12 or the cabinet 16 and defines a required space between the outer bottom surface and the installation floor surface.

  The ice making mechanism 20 defines a large number of ice making chambers opening downward, an ice making chamber 22 having the evaporator 18 disposed on the upper surface thereof, and a water tray 24 disposed below the ice making chamber 22 so as to be tiltable. And an ice-making water tank 26 that is integrally disposed below the water tray 24 and stores a required amount of ice-making water. The water tray 24 is positioned horizontally during the ice making operation, closes the ice making chamber 22 from below, and tilts obliquely downward during the deicing operation to open the ice making chamber 22. Further, in the deicing operation, ice blocks falling from the ice making chamber 22 slide down on the upper surface of the water tray 24 and are released to the ice storage chamber 12a, and ice making water (ice making residual water) remaining in the ice making water tank 26 is It is discharged to a drain pan 28 disposed below the ice making mechanism 20. Further, the drain pan 28 is adapted to receive a surplus portion (surplus water) of ice making water flowing down from the ice making water tank 26 and condensed water dripping from the ice making mechanism 20.

  As shown in FIG. 7, the drain pan 28 is provided with an outlet 30 at the bottom, and an upper end of a drain pipe 32 is connected to the outlet 30. The lower end portion of the drain pipe 32 is inserted into a drain port 36 of a drain tray 34 provided on the bottom wall portion 14 of the box 12 that defines the bottom surface of the ice storage chamber 12a. Further, the drainage tray 34 has a drainage port 36 set to be larger than the outer diameter of the drainage pipe 32, and melted ice water or washing ice blocks generated in the ice storage chamber 12 a from the gap between the drainage port 36 and the drainage pipe 32. Accepts water. A drain pipe 38 is connected to the drain tray 34, and the water received in the drain tray 34 is discharged to the outside via the drain pipe 38. That is, in the ice making machine 10, the water received by the drain pan 28 is discharged to the drain pan 34 through the drain pipe 32, and the drainage from the drain pan 28 and the melted water, washing water, etc. received from the drain port 36 are the same discharge pipe. 38 (see, for example, Patent Document 1). The discharge pipe 38 is formed with a trap portion 38a in which the pipe is bent in a U-shape. By filling the trap portion 38a with water, the outside and the ice storage chamber 12a are isolated from each other, and the discharge pipe 38 is connected. A bad odor, a pest or the like is prevented from entering the ice storage chamber 12a from the outside.

JP 2001-289541 A

  In the ice making machine 10, in order to keep the height of the machine low, the drain pan 28 is shallow and wide, and the drain pan 28 in the state where the drainage is discharged from the ice making mechanism 20 to the drain pan 28. The water level is low, and air is easily sucked when drainage flows from the outlet 30 into the drain pipe 32. The sucked-in air flows down in the state of being mixed as bubbles in the drainage, and this bubble has a large resistance at the part that flows out from the drainage pipe 32 to the discharge pipe 38 together with the drainage, and the smooth flow of the drainage is prevented. It becomes a factor to inhibit. In particular, when discharging the ice making residual water at the start of the deicing operation, when the amount of drainage flowing from the drain pan 28 into the drain pipe 32 is increased, the bubbles mixed in the drainage are repelled, thereby smoothly flowing the drainage. It becomes prominent that the water is obstructed, and there is a possibility that the waste water overflows from the drain port 36 of the drain tray 34 and flows back to the ice storage chamber 12a. The drainage overflowing into the ice storage chamber 12a due to this reverse flow phenomenon contaminates the ice block and causes sanitary problems, and also causes melting and arching (sticking of ice blocks), thereby reducing the value of the ice block.

  It is to be noted that by reducing the outlet 30 of the drain pan 28 or by narrowing the lower end portion of the drain pipe 32, it is possible to limit the amount of drainage discharged from the drain pipe 32 and suppress the occurrence of the backflow phenomenon. It is. However, when an abnormality such as a failure of a water supply valve provided in the water supply system to the ice making water tank 26 occurs, if the outlet 30 is reduced or the lower end of the drain pipe 32 is narrowed, a large amount of waste water cannot be treated. There is a possibility that a situation may occur in which drainage overflows from the drain pan 28 and affects the entire ice block in the ice storage chamber 12a. In addition, when the lower end of the drainage pipe 32 is squeezed, calcium in the water tends to adhere to the squeezed part, and if it is used for many years, the calcium grows and it becomes difficult for the drainage to flow. Causes it to occur. In addition, it is extremely difficult to remove calcium adhering to the inside of the drain pipe 32.

  That is, the present invention has been proposed in order to suitably solve these problems inherent in the drainage structure of the ice making machine according to the prior art, and can prevent overflow from the drainage outlet with a simple structure. And it aims at providing the drainage structure of the ice making machine which can cope with at the time of abnormality occurrence.

In order to overcome the above problems and achieve the intended purpose, the drainage structure of the ice making machine of the invention according to claim 1 of the present application,
A drain pan that is provided below an ice making mechanism installed in an ice storage chamber defined in the box and receives water flowing down from the ice making mechanism, an outlet provided in the drain pan, and facing the ice storage chamber In the drainage structure of an ice making machine provided with a drain outlet provided in the box and a drain pipe whose upper end is connected to the outlet and whose lower end is inserted into the drain outlet,
A cylindrical flow rate adjustment member protruding from the inner bottom surface of the drain pan so as to surround the outlet, and having an inlet opening larger upward than the outlet;
And a flow rate adjusting portion provided in the flow rate adjusting member or the drain pan so as to communicate with the inside and outside of the flow rate adjusting member and opening smaller than the outlet.
According to the first aspect of the present invention, the amount of drainage flowing into the drainage pipe from the outlet can be limited by the flow rate regulating unit provided in the flow rate regulating member or the drain pan, so that a large amount of drainage flows into the drain outlet at a time. It is possible to suppress the overflow of drainage from the drain outlet. In addition, if a large amount of drainage is discharged to the drain pan when an abnormality such as a water supply valve failure occurs, the drainage can flow to the outlet and drain pipe via the inlet of the flow control member, and the drainage overflows from the drain pan. Can be prevented.

The gist of the invention according to claim 2 is that the flow rate adjusting portion is provided so as to face one place in the circumferential direction at the outlet.
According to the second aspect of the present invention, since the flow rate adjusting portion is provided so as to face one place in the circumferential direction at the outlet, it is possible to suppress the generation of vortex when drainage flows into the outlet. , It is possible to suppress air mixing into the wastewater caused by vortices. Moreover, since the wastewater flows from one place in the circumferential direction with respect to the outlet, there is no collision between the wastewaters generated when the wastewater flows from a plurality of places with respect to the outlet, and air is mixed into the wastewater caused by the collision. Can prevent. That is, since air mixing into the wastewater can be suppressed as much as possible, resistance due to the repelling of air bubbles can be reduced, and overflow of the wastewater from the drainage port can be more reliably prevented.

  According to the drainage structure of the ice making machine according to the present invention, the overflow from the drain outlet can be prevented with a simple structure, and the drainage can be prevented from overflowing from the drain pan when an abnormality occurs.

It is a side view which fractures | ruptures and shows the principal part of the ice making machine which has the drainage structure which concerns on the suitable Example of this invention. It is a principal part disassembled perspective view which shows the relationship between the flow volume adjustment member which concerns on an Example, and the outflow port of a drain pan. It is a principal part top view which shows the outflow port of the drain pan which concerns on an Example. It is a principal part disassembled perspective view which shows the relationship between the flow volume adjustment member which concerns on a 1st another Example, and the outflow port of a drain pan. It is a principal part disassembled perspective view which shows the relationship between the flow volume adjustment member which concerns on a 2nd another Example, and the outflow port of a drain pan. It is a perspective view which shows a general ice making machine. It is a sectional side view which shows the principal part of the ice making machine which has the conventional drainage structure.

  Next, the drainage structure of the ice making machine according to the present invention will be described below with reference to the accompanying drawings by giving a preferred embodiment. For convenience of explanation, the same components as those of the ice making machine shown in FIG. 6 are denoted by the same reference numerals, and detailed description thereof is omitted.

  As shown in FIG. 1, an ice making machine 40 according to the embodiment has a so-called closed cell type ice making having an ice making chamber 22 and a water tray 24 in an upper part of an ice storage chamber 12 a internally defined in a box 12 having a heat insulating structure. A mechanism 20 is disposed, and a drain pan 42 that receives drainage (ice-making residual water, overflow water, dew condensation water, etc.) flowing down from the ice making mechanism 20 is disposed below the ice making mechanism 20. In the ice making operation, the ice making machine 40 holds the water tray 24 so as to close the lower surface of the ice making chamber 22 and supplies ice making water from the water tray 24 to the ice making chamber 22 cooled by the operation of the refrigeration apparatus. And configured to produce ice blocks. Further, the ice making machine 40 opens the ice tray 24 by tilting downward so that the water tray 24 is separated from the ice making chamber 22 with one side as a fulcrum in the deicing operation, and the ice lump detached from the heated ice making chamber 22 is removed. It is guided by the upper surface of the water tray 24 and falls to the ice storage area below the drain pan 42.

  A drain tray 34 is provided on the bottom wall portion 14 of the box 12. The drain tray 34 is a cylindrical member that is embedded in the bottom wall portion 14 and opens upward and downward. The drain port 36 located above faces the bottom surface of the ice storage chamber 12a to melt the ice blocks and to store the ice storage chamber 12a. It can accept waste water generated during cleaning. Further, the drain tray 34 is provided with a socket 44 on the lower side, and this socket 44 projects through the lower surface of the bottom wall portion 14 and protrudes toward the space defined by the leg portion 21 and the installation floor surface. Yes. In addition, the bottom wall part 14 is formed so that it may incline below as the bottom face of the ice storage chamber 12a goes to the drain outlet 36, and the drain outlet 36 is arrange | positioned at the inclination lower end of the said bottom face.

  One end of an L-shaped discharge pipe 46 is connected to an end portion of the socket 44 protruding from the lower surface of the bottom wall portion 14, and a flexible drain hose 48 is connected to the other end of the discharge pipe 46. One end is connected in communication. As shown in FIG. 1, a part of the drainage hose 48 is held by a holding tool 50 provided on the lower surface of the bottom wall portion 14, and between the holding position by the holding tool 50 and one end connected to the discharge pipe 46. In this portion, a trap portion 48a bent in a U shape with the lower side convex is formed.

  The drain pan 42 is formed in a dish shape, and the ice making residual water discharged from the ice making water tank 26 formed integrally with the water dish 24 tilted during the deicing operation and surplus water at the time of water supply discharged from the ice making water tank 26. It is arrange | positioned in the position which can receive. The drain pan 42 is installed such that one side portion is sandwiched between a pair of holding portions 52a and 52a provided on the side wall portion 52 of the box body 12 so as to be spaced apart from each other. It can be removed by pulling it out to the area side. The drain pan 42 is provided at the bottom portion where the drainage outlet 30 is deepest, and the inner bottom surface of the drain pan 42 receives drainage discharged from the tilting lower end side of the ice making water tank 26 tilted during the deicing operation. It is comprised so that it may incline below toward the outflow port 30 from the receiving part P (right end part of FIG. 1) to do. In the embodiment, the outflow port 30 is provided at the rear corner of the drain pan 42 away from the receiving site P, and the inner bottom surface of the drain pan 42 is configured to be inclined downward from the front end side toward the outflow port 30. Yes.

  Also, as shown in FIG. 1 or FIG. 2, the wall portion defining the outlet 30 projects downward from the outer bottom surface of the drain pan 42 to form a cylindrical connecting portion 54. The upper end of the drainage pipe 32 is inserted into the connection part 54, and the connection part 54 and the drainage pipe 32 are connected in communication by a connection hose 56.

  In the ice making machine 40, a drain pan 42 and a drain tray 34 are connected by a drain pipe 32, and drainage is discharged from the drain pan 42 to the drain tray 34 through the drain pipe 32. As described above, the drain pipe 32 has an upper end connected to the connecting portion 54 of the drain pan 42, and extends vertically in the ice storage region of the ice storage chamber 12 a, and a lower end is inserted into the drain outlet 36 of the drain tray 34. The drain pipe 32 is a straight pipe whose outer diameter and inner diameter do not change over the entire length in the longitudinal direction. The outer diameter of the drain pipe 32 is smaller than that of the drain port 36. Between the lower end part of the drainage pipe 32 inserted and the drainage port 36, it is comprised so that the distribution port which receives the waste_water | drain from the ice storage chamber 12a can be ensured.

  On the drain pan 42, a flow rate adjusting member 58 surrounding the outlet 30 is provided on the inner bottom side of the outlet 30 (the surface opened inside the drain pan 42). As shown in FIG. 2, the flow rate adjusting member 58 is a cylindrical tube having an inner diameter larger than that of the outlet 30, and its lower surface is bonded and fixed to the inner bottom surface of the drain pan 42. The inlet 58a that opens larger is set so as to face a predetermined height above the outlet 30.

  The side wall 60 of the flow rate adjusting member 58 is formed with a flow rate adjusting hole (flow rate adjusting portion) 60a that opens to the side at the lower end, and the inside and outside of the flow rate adjusting member 58 communicate with each other through the flow rate adjusting hole 60a. It is configured as follows. As shown in FIG. 2, the flow rate adjusting hole 60a is an arc-shaped hole drilled in an arc shape protruding upward from the lower end of the side wall 60, and the opening area of the flow rate adjusting hole 60a is equal to the outlet port. It is set to be smaller than the opening area of 30 and is configured to limit the amount of drainage flowing into the outlet 30. Here, the upper end position of the flow rate adjustment member 58 (opening position of the introduction port 58a) is a state in which the ice making machine 40 is operating normally, such as when ice making residual water is discharged at the start of the deicing operation of the ice making machine 40. Assuming a point in time when the amount of drainage is the largest, it is set so as to face above the surface of the drainage accumulated in the drain pan 42 at this point. That is, all the drainage discharged to the drain pan 42 during normal operation of the ice making machine 40 flows into the outlet 30 from the flow rate adjusting hole 60 a of the flow rate adjusting member 58. The opening area of the flow rate adjusting hole 60a is preferably set to ½ or less of the opening area of the outlet 30. However, the lower limit value of the opening area of the flow rate adjusting hole 60a can suppress the height dimension of the flow rate adjusting member 58 as much as possible, and the water level of the drainage accumulated in the drain pan 42 during normal operation of the ice making machine 40 is the flow rate adjusting member 58. It is set to a value that can ensure a drainage capacity that does not exceed the upper end position.

  The flow rate adjusting hole 60 a is provided at one place in the circumferential direction of the side wall 60, and the waste water that has passed through the flow rate adjusting hole 60 a flows into the outlet 30 from one place in the circumferential direction. Thus, the generation of vortices when the wastewater flows into the outlet 30 can be suppressed, and collision between the wastewaters can be prevented. Further, as shown in FIG. 3, the flow rate adjusting hole 60a is provided at a position not facing the receiving portion P with respect to the flow rate adjusting member 58, and the drainage discharged to the receiving portion P directly flows into the flow rate adjusting hole 60a. Configured not to.

  A filter 62 is provided on the inner bottom surface side of the outlet 30 to prevent large waste from entering the drain pipe 32 and prevent the drain pipe 32 from being blocked (see FIG. 3). The filter 62 is disposed inside the flow rate adjusting member 58 and is formed in a semicircular shape so as to cover the outlet 30, and a plurality of openings are spaced apart in the circumferential direction on the side surface portion. The drainage water provided in the drain pan 42 from the opening flows into the outlet 30. In addition, one opening in the filter 62 and the flow rate adjusting hole 60a of the flow rate adjusting member 58 are positioned so as to be aligned in the radial direction, so that the filter 62 is prevented from becoming a resistance of drainage flowing from the flow rate adjusting hole 60a. I have to. The filter 62 is configured not to contact the inner surface of the flow rate adjusting member 58.

(Operation of Example)
Next, the effect | action of the drainage structure of the ice making machine based on an Example is demonstrated. The drainage discharged from the ice making water tank 26 is received by the drain pan 42, flows down on the inner bottom surface thereof, and flows into the outlet 30 through the flow rate adjusting hole 60 a of the flow rate adjusting member 58. Since the opening area of the flow rate adjusting hole 60a is set smaller than the opening area of the outflow port 30, the amount of waste water flowing into the outflow port 30 through the flow rate adjusting hole 60a is limited. That is, since the amount of drainage discharged from the drainage pipe 32 to the drainage pipe 46 is also limited, there is little resistance due to the repelling of bubbles mixed in the drainage, the drainage flows smoothly, and the drainage tray 34 It is possible to avoid a reverse flow phenomenon (overflow) in which drainage overflows from the ice storage chamber 12a. In addition, since the flow rate adjusting hole 60 a is formed at one place in the circumferential direction of the side wall 60, it is possible to suppress the generation of vortex when drainage flows into the outlet 30. Moreover, since wastewater does not flow into the outflow port 30 from a plurality of locations, there is no collision between the wastewaters that occur when the wastewater flows into the outflow port 30 from different circumferential directions. That is, it is possible to suppress air mixing into the wastewater caused by the vortex or the collision between the wastewaters. Therefore, the amount of bubbles per se mixed into the waste water is small, and the resistance caused by the bubbles repelling can be reduced to reliably avoid the backflow phenomenon.

  Here, if the resistance when drainage is discharged from the drain pipe 32 to the discharge pipe 46 is large, the bubbles are likely to repel. Therefore, in the conventional ice making machine 10, the trap portion 38 a provided in the discharge pipe 38 has a resistance. In order to reduce the size, it was necessary to use a mold to obtain a special shape. However, in the ice making machine 40 of the embodiment, the amount of drainage flowing from the drain pan 42 to the drain pipe 32 is limited by the flow rate adjusting hole 60a, and the drainage can be smoothly discharged from the drain pipe 32 to the drain pipe 46. Therefore, it is possible to cope with the trap part 48a by bending the drainage hose 48 without using a special shape as the trap part, and the manufacturing cost can be reduced. Further, since the amount of drainage discharged from the drainage pipe 32 to the drainage pipe 46 is performed by the flow rate adjusting member 58 protruding from the inner bottom surface of the drain pan 42, the calcium in the moisture is temporarily placed in the portion of the flow rate adjusting hole 60a. Even if it adheres, the operation of removing the calcium is easy. Furthermore, since the drain pipe 32 is a straight pipe that has not been drawn, calcium in the moisture is unlikely to adhere, and the drainage can flow smoothly over a long period of time.

  As shown in FIG. 3, the flow rate adjusting hole 60 a is provided at a position that does not face the receiving portion P through which drainage is discharged from the ice making water tank 26 to the drain pan 42. The drainage discharged to the receiving site P and flowing through the inner bottom surface does not directly flow into the flow rate adjusting hole 60a, and the increase in the amount of air sucked by the drainage flowing into the outlet 30 can be suppressed. That is, the drainage discharged to the receiving site P and flowing on the inner bottom surface is impinged on the side wall rising from the bottom surface of the flow rate adjusting member 58 or the drain pan 42 and the momentum is weakened. Since it flows into the adjustment hole 60, the flow rate of the waste water when flowing into the outlet 30 is slow, and mixing of air can be suppressed.

  In the ice making machine 40, when a large amount of drainage is discharged from the ice making water tank 26 to the drain pan 42 due to a failure of a water supply valve provided in the water supply system to the ice making water tank 26, the flow rate of the flow rate adjusting member 58 Only the adjustment hole 60a cannot be discharged, and the drainage accumulates in the drain pan 42 and the water level rises. When the water level of the drainage exceeds the upper end position of the flow rate adjusting member 58, the drainage flows into the flow rate adjusting member 58 from the inlet 58a and flows into the drain pipe 32 from the outlet 30. Since the introduction port 58 a is opened larger than the outlet 30, the amount of drainage flowing into the outlet 30 is not limited, and the drainage can be discharged by the drainage capacity of the outlet 30 and the drain pipe 32. That is, it is possible to prevent the drainage from overflowing from the drain pan 42 when an abnormality occurs, and to prevent the entire ice block stored in the ice storage chamber 12a from being affected. Although a large amount of drainage flows into the drainage pipe 32, there is a possibility that a reverse flow phenomenon may occur in the drainage tray 34. However, the influence of the drainage flowing into the ice storage chamber 12a is limited compared to the case where drainage overflows from the drain pan 42. It is.

(Another embodiment)
4 and 5 show another embodiment of the drainage structure, and only the parts different from the above-described embodiment will be described, and the same parts are denoted by the same reference numerals. That is, in the first alternative embodiment shown in FIG. 4, a notch portion 64 as a flow rate adjusting portion is formed in the side wall 60 of the flow rate adjusting member 58 so as to open inward and outward along the entire length in the vertical direction. ing. The opening dimension in the circumferential direction of the notch 64 is set smaller than the opening dimension of the outlet 30, and the amount of drainage flowing into the outlet 30 through the notch 64 is limited. Has the same effect as.

  In the second alternative embodiment shown in FIG. 5, a groove 66 as a flow rate adjusting portion opening upward is formed on the bottom surface of the drain pan 42 from the outside to the inside of the flow rate adjusting member 58. The inside and outside of the flow rate adjusting member 58 communicate with each other by the groove 66. The end of the groove 66 facing the inside of the flow rate adjusting member 58 communicates with the outlet 30. The opening dimension defined between the groove 66 and the lower end of the flow rate adjusting member 58 is set to be smaller than the opening dimension of the outlet 30, and the amount of drainage flowing into the outlet 30 through the groove 66 is set. The amount is limited, and the same effect as the embodiment is achieved.

(Example of change)
It is not limited to the structure of an Example, It can change also as follows.
(1) Although the closed cell type is mentioned as the ice making mechanism in the embodiments, an open cell or a flow-down type ice making mechanism can also be adopted.
(2) Although the cylindrical flow rate member of the embodiment has been described, an elliptical or polygonal cylindrical shape may be used.
(3) In the embodiment, the separate flow rate adjusting member is bonded and fixed to the drain pan. However, the drain rate pan may be integrally formed with the drain pan. Further, the flow rate adjusting member may be configured to be detachable from the drain pan, and may be configured to be removed and cleaned as necessary.

12 box body, 12a ice storage chamber, 20 ice making mechanism, 30 outlet, 32 drain pipe 36 drain port, 42 drain pan, 58 flow rate adjusting member, 58a inlet port, 60 side wall 60a flow rate adjusting hole (flow rate adjusting unit), 64 notch (Flow control unit)
66 Groove (flow rate adjuster)

Claims (2)

A drain pan (42) provided below an ice making mechanism (20) installed in an ice storage chamber (12a) defined in the box (12) and receiving water flowing down from the ice making mechanism (20); The outlet (30) provided in the drain pan (42), the drain (36) provided in the box (12) facing the ice storage chamber (12a), and the upper end are connected to the outlet (30). In addition, in the drainage structure of the ice making machine provided with the drain pipe (32) whose lower end is inserted into the drain port (36),
A cylindrical flow rate adjustment member (58) having an inlet (58a) projecting on the inner bottom surface of the drain pan (42) so as to surround the outlet (30) and opening upward from the outlet (30). )When,
The flow rate adjusting member (58) or the drain pan (42) is provided in the flow rate adjusting member (58) so as to communicate with the inside and outside of the flow rate adjusting member (58), and the flow rate adjusting unit (60a, 64, 66) opening smaller than the outlet (30). And a drainage structure of an ice making machine.   The drainage structure for an ice making machine according to claim 1, wherein the flow rate adjusting section (60a, 64, 66) is provided so as to face one place in the circumferential direction of the outlet (30).

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