JP4454541B2 - Built-in type pull-out dishwasher and its exhaust system - Google Patents

Description

  The present invention relates to a built-in type pull-out dishwasher and an exhaust system thereof, so that exhaust during a drying process is not discharged from the front surface, and can be discharged outside without being discharged indoors. It is a thing.

The built-in type dishwasher has an exhaust port on the front wall of the washing tank, and exhaust gas containing water vapor is discharged from the exhaust port during the drying process.
When the drying process is executed after the high temperature rinsing process, the exhaust gas containing a large amount of high temperature water vapor is discharged into the room from the exhaust port on the front wall of the cleaning tank at the initial stage.
When exhaust containing a large amount of high-temperature steam is discharged from the exhaust port on the front wall, there is a disadvantage that it may be sprayed on a cooking worker to wet clothes or hit an infant's face. In addition, water vapor in the exhaust gas may be condensed at the exhaust port, and water droplets attached around the exhaust port of the dishwasher may fall on the floor surface and wet the floor surface.
A built-in dishwasher is installed just below the kitchen counter. The end of the kitchen counter protrudes toward the front side of the dishwasher, so that exhaust directly hits the lower surface of the kitchen counter's protrusion, causing condensation.If condensation occurs on the lower surface of the kitchen counter's protrusion, Water droplets adhering to the lower surface of the protrusion may fall on the floor surface and wet the floor surface.

In order to reduce various problems due to a large amount of high-temperature steam being discharged from the front exhaust port at the initial stage of the drying process, an invention for reducing the amount of dry air at the initial stage of the drying process is known (Japanese Patent No. 2517026). ). However, in the case of this conventional technique, the inconvenience caused by direct exhaust to the cooking worker and the inconvenience caused by blowing from the front to the room are not solved, and the amount of exhaust at the initial stage of the drying process is reduced. As a result, the drying process becomes longer and eventually the operation time becomes longer.

  In addition, for built-in type front opening type (or front door type) dishwashers, a steam exhaust port is provided adjacent to the grill exhaust port of the drop-in type gas range, and the exhaust duct guides the exhaust to the steam exhaust port. An invention for releasing into the room from here is also known (Japanese Patent Laid-Open No. 2000-271058). In this prior art, as shown in FIG. 7, an exhaust port is provided at the rear upper part of the cleaning tank 50 sealed by the front door D, and is provided adjacent to the exhaust port and the grill exhaust port 52 of the drop-in stove. The steam discharge port 53 communicates with the steam discharge cylinder 54, and the exhaust is discharged into the room from the steam discharge port 53 below the range hood 55 and is sucked into the range hood 55 and discharged outside the room. Is supposed to.

Since the washing tank of the front-opening dishwasher of the above prior art is fixed, an exhaust port is provided at the upper rear part of the cleaning tank 50, and the exhaust port and the steam discharge port 53 are fixed to the steam discharge cylinder 54. It is possible to connect and discharge steam from the steam discharge port 53 toward the range hood 55.
In addition, there is a type in which an exhaust duct of a front opening type dishwasher is protruded to the outside of an outer wall so that exhaust is discharged to the outside (Japanese Patent Laid-Open No. 06-169821).

Further, there are some which connect an exhaust pipe of a front-opening dishwasher to a drain pipe of a building and discharge the exhaust to the drain pipe (Japanese Patent Laid-Open Nos. H11-104055 and 2001-204672). This is, for example, as shown in FIG. 8. For a dishwasher housed so that the tableware basket 42 is drawn out to a washing tank 41 whose front opening is opened and closed by the front door 43, the washing tank 41. An exhaust port 45a is provided in the central ceiling of the exhaust pipe, and an exhaust duct 45 is connected to the drain pipe 22 at a position outside the drain trap 7. The exhaust duct 45a is connected to the drain pipe via the exhaust duct 45. 22 is communicated with.
In this example, a flapper 45 b that prevents backflow from the drain pipe 22 to the cleaning tank is provided in the horizontal portion of the exhaust duct 45.

  On the other hand, the drawer-type dishwasher has an upper part that is fully open at the top of the washing tub, and the opening is opened and closed by a lid that moves up and down, and the washing tub moves greatly in the front-rear direction. Therefore, the exhaust passage cannot be configured with a simple piping structure (see the steam discharge cylinder 3 of Patent Document 2) as in the above-described conventional technology.

As an exhaust pipe structure that connects between the exhaust port of the washing tank drawn out in the front-rear direction and a fixed passage in the system kitchen, a flexible exhaust pipe structure that bends, a telescopic pipe structure that telescopes in the longitudinal direction, and in the longitudinal direction An elastic tube structure that elastically expands and contracts is easily conceived.
However, it is practically impossible to adopt a flexible exhaust pipe structure that bends. This is because the flexible exhaust pipe must be thick enough not to increase its exhaust resistance, and its deflection (bending and stretching) needs to be considerably large. It is inevitable that the resistance becomes considerably large, and the bending and stretching of the flexible exhaust pipe increases the resistance of the drawing operation of the cleaning tank. Further, such a flexible exhaust pipe can be accommodated without any trouble. This is because there is no space.

In addition, a pipe structure in which a telescoping exhaust pipe is disposed between the exhaust port of the cleaning tank and a fixed passage in the system kitchen and both ends thereof are connected to the cleaning tank and the system kitchen, respectively, cannot be practically adopted. This is because it is necessary to make this thicker in order to reduce the ventilation resistance of the telescopic exhaust pipe, and on the other hand, the positional accuracy in the vertical and horizontal directions between the exhaust port of the cleaning tank and the fixed passage on the system kitchen side is not high. Therefore, the expansion and contraction tube is distorted and its sliding resistance is increased. Therefore, there is a possibility that the drawing operation of the cleaning tank becomes heavy, and therefore it cannot be put into practical use.
Furthermore, it is practically impossible to employ a piping structure in which an expansion / contraction exhaust pipe that elastically expands and contracts is disposed between the exhaust port of the cleaning tank and the fixed passage of the system kitchen, and both ends thereof are connected to the cleaning tank and the system kitchen. This is because the cleaning tank insertion / extraction stroke is, for example, about 500 mm and is considerably large, and the width of the excess space behind the cleaning tank in a state where the cleaning tank is pushed in is extremely small. This is because it is practically impossible to secure an elastic expansion / contraction stroke of the required length with the expansion / contraction exhaust pipe.
Japanese Patent No. 2517026 JP 2000-271058 A Japanese Patent Application Laid-Open No. 06-169821 JP 11-104055 A JP 2001-204672 A

  As described above, the present invention completely eliminates the inconvenience caused by the cooking worker hitting the exhaust by exhausting directly to the outside of the built-in type drawer type dishwasher exhaust system without exhausting indoors. The purpose of this is to prevent the drying process from being extended, and it does not affect the operation of putting in and out of the washing tank, does not cause a decrease in exhaust efficiency, and exhausts smoothly without causing exhaust leakage. As a result, the piping structure between the cleaning tank and the fixed passage in the system kitchen is devised.

Means of the present invention for solving the above-mentioned problems is that, in a built-in type drawer type dishwasher, an exhaust port is provided in the rear wall of the washing tank, and the tip of the exhaust pipe attached to the main body of the dishwasher is inserted and removed from the washing tank. The basic configuration is that the exhaust in the exhaust process is exhausted from the exhaust port to the fixed passage through the exhaust pipe and discharged from the fixed passage to the outside through the operation. Specifically, this is due to the following (a) to (e).
(B) A conical exhaust port that is expanded outward is provided on the rear wall of the cleaning tank,
(B) An exhaust pipe whose tip is detachably connected to the exhaust port is attached to the main body of the dishwasher with flexibility in front, rear, top, bottom, left and right.
(C) The tip of the exhaust pipe is a hemispherical connection head, and the exhaust pipe is elastically biased toward the exhaust port,
(D) There is a hose joint on the rear wall of the dishwasher body, and the other end of the exhaust pipe is connected to the hose joint.
(E) An exhaust pipe is connected to the hose joint, and the exhaust port of the cleaning tank communicates with the outside through the exhaust pipe, the hose joint, and the exhaust pipe.
In addition, it is preferable that the conical exhaust port and the hemispherical connection head that are fitted to each other basically have the exhaust port as a concave portion and the connection head as a convex portion. Since the projecting portion utilizes the property that the projecting portion is freely fitted, the exhaust port may be a hemispherical projecting portion and the connection head may be a conical recessed portion, which are within the scope of the same technical means.

[Action]
The exhaust pipe is attached to the main body of the dishwasher in the front, rear, top, bottom, left and right, and the connection head at the tip of the exhaust pipe can be attached to and detached from the conical exhaust port that spreads outward from the rear wall of the washing tank. Therefore, when the cleaning tank is pulled out, the exhaust pipe connection head is separated from the exhaust port, so that the exhaust pipe is not forcibly pulled by the cleaning tank, and the exhaust pipe is resistant to pulling out of the cleaning tank. It will never be.
When the cleaning tank is pushed in, the exhaust pipe connection head is fitted into the exhaust port just before the end of the pushing operation, and the hemispherical tip is lightly pressed against the conical inner surface of the exhaust port by the elastic force of the exhaust pipe. Is done. Therefore, the exhaust pipe is not forcibly pushed by the washing tank and does not become a resistance to the pushing operation of the washing tank.

  And since the exhaust pipe is attached to the dishwasher body in the front / rear / up / down / left / right direction, the hemispherical connection head at the tip can be adjusted in the front / rear direction, the up / down direction, and the left / right direction. Therefore, when the cleaning tank is pushed in, the conical surface of the conical exhaust port is pressed against the conical surface of the connection head, and the position with respect to the exhaust port is automatically adjusted. Regardless, the connection head fits smoothly into the conical exhaust. Further, since the exhaust pipe is elastically biased toward the exhaust port, the spherical outer surface of the connection head closely contacts the conical surface of the exhaust port. Therefore, when the cleaning tank is pushed in, the tip of the exhaust pipe, that is, the connection head is connected to the exhaust port in an airtight state.

As described above, the exhaust port of the washing tank communicates with the hose joint fixed to the rear wall of the dishwasher body through the exhaust pipe, and the exhaust pipe is connected to the hose joint. It can be communicated with the outside through the hose joint and the exhaust pipe.
Therefore, when the dishwasher is in the drying process and exhausted, the exhaust is not leaked and is discharged to the outside through the exhaust port, exhaust pipe, hose joint, and exhaust pipe of the cleaning tank. The

[Embodiment 1]
In Embodiment 1, the exhaust pipe is a joint pipe having an exhaust hose and a hemispherical connection head, and the exhaust hose and the joint pipe are slidably fitted. And the joint pipe is supported by the dishwasher body with flexibility in front and rear, up, down, left and right, and is urged toward the exhaust port by a spring, and the exhaust pipe has an elastic buffering action in the longitudinal direction. When the exhaust pipe is supported by the dishwasher body in the front / rear / up / down / left / right direction, and when the connection head of the joint pipe contacts the exhaust port of the washing tank, the joint pipe is pushed into the exhaust hose against the spring. The impact at that time can be mitigated, and the spherical outer surface of the connection head can be fitted into the exhaust port to ensure close contact regardless of the positional displacement of the cleaning tank in the front-rear direction.

[Embodiment 2]
In the second embodiment, the exhaust pipe is composed of a joint pipe provided with an exhaust hose and a hemispherical connection head, and the exhaust hose and the hose joint are slidably fitted, and the joint pipe is vertically and vertically and horizontally. It is supported by the dishwasher body with flexibility, and the joint pipe is biased toward the exhaust port (front of the exhaust pipe) by a spring, and the exhaust pipe has an elastic buffering action in the longitudinal direction. The exhaust pipe is supported by the dishwasher body with flexibility in front / rear, top / bottom / left / right, and when the connection pipe connection head comes into contact with the exhaust port of the washing tank, the hose joint is pushed into the exhaust hose to reduce the impact at that time The spherical outer surface of the connection head can be fitted into the exhaust port and brought into close contact with each other regardless of the displacement of the position of the cleaning tank in the front-rear direction.

[Embodiment 3]
In the third embodiment, a damper is provided in the hose joint, and the damper is provided with a labyrinth seal, which can effectively prevent the backflow of air from the outside to the cleaning tank. .

As described above, the present invention provides a dishwasher that exhausts exhaust air during the drying process of a built-in type drawer dishwasher to the outside through an exhaust pipe or the like from an exhaust port provided in the rear wall of the washing tank. So that cooking workers are not exposed to the exhaust gas containing a large amount of water vapor, the odor of the exhaust gas is not diffused into the room, and the dew condensation water of the exhaust gas Therefore, there is no problem that the area around the exhaust outlet of the dishwasher or the area around the front side of the countertop gets wet or gets dirty.
In addition, since there is no exhaust port on the front surface of the cleaning tank, the appearance of the front surface of the cleaning tank is simplified and the appearance is improved.

Furthermore, Rutoki is from the rear wall of the cleaning tank blown dry air flow towards the front, the drying air stream flows backwards in the cleaning tank with a U-turn, then, discharged from the exhaust port of the rear wall Is done. Since the air flow for drying flows in a U-turn in the washing tank in this way, the air flow circulating in the washing tank becomes uniform as compared with the conventional one discharged forward from the exhaust port on the front wall. , Drying efficiency is improved. Therefore, the time required for the drying process is shortened.

An exhaust pipe whose tip is connected to the exhaust port is detachably attached to the main body of the dishwasher, and the tip of the exhaust pipe is a hemispherical connection head. Since it is elastically biased toward the exhaust port, it is connected to the conical exhaust port on the rear wall of the cleaning tank so that it can be freely contacted and separated, and it is separated and connected when the cleaning tank is put in and out. No force is applied, and the operation of putting in and out of the washing tank is not hindered by the exhaust pipe.
Accordingly, the washing tank can be smoothly inserted and removed.
In addition, since the exhaust pipe connected to the exhaust port on the rear wall of the cleaning tank is not subjected to excessive force by the operation of inserting and removing the cleaning tank, its durability is not hindered.

Next, embodiments will be described with reference to the drawings (FIGS. 1 to 3).
In this embodiment, the present invention is applied to a drawer-type dishwasher having a very general mechanism, and the general mechanism and structure are as follows.
When the power button is turned on and the start switch is turned on in the state where the tableware is placed in the tableware basket 2 in the drawn washing tank 1, the selected predetermined washing program is started.
Washing water is poured into the washing tank to a predetermined water level and heated to a predetermined temperature by the heater 5. Then, the washing water is pressurized by the washing pump 3 disposed below the bottom of the washing tank 1, and the pressurized washing water is ejected from the rotary nozzle 4 to wash the dishes. After cleaning and rinsing are completed, drying air is sent toward the heater 5 from a drying fan 6 provided behind the rear wall 1a of the cleaning tank. The drying air flows forward, is heated by the heater 5, circulates in the cleaning tank, becomes high-temperature exhaust gas containing a large amount of water vapor, and is discharged from the exhaust port 11.

Since the cleaning tank 1 of the first embodiment is drawn forward (leftward in FIG. 1), the water supply pipe 8 and the drain pipe 8a are flexible pipes bent into a U shape.
An exhaust port 11 is provided above the rear wall 1a of the washing tub 1 of the dishwasher.
On the other hand, the hose joint 20 is fitted into the opening of the rear wall w of the dishwasher main body H, and is fixed with screws 20b. The hose joint 20 is a cylindrical member, and a front half thereof is a large-diameter cylindrical portion 20a, and a damper 23 is provided in the large-diameter cylindrical portion 20a. The damper 23 is provided with a labyrinth seal 23b, is a normally closed type and blocks backflow of air, and is opened by the wind pressure of exhaust gas.

The rear end of the exhaust pipe 12 is one that is configured fitted slidably to catch pipe 13 to the tip of the exhaust hose 14, while the exhaust hose 14 in the large-diameter cylindrical portion 20a of the front of the hose joint 20 (Right end) is fitted, and one end of the exhaust pipe 21 is fitted and connected to the rear cylindrical portion of the hose joint 20. The other end of the exhaust pipe 21 is connected to the drain pipe 22 at a position outside the drain trap.

  The exhaust hose 14 is made of rubber. The joint pipe 13 (made of metal or plastic) has a hemispherical connection head 13h at its tip, an annular flange 13a at the center, and a radial arm 13b provided on the annular flange 13a. The pipe 13 is fixed to the annular flange 13a by welding or the like. The arm 13 b is suspended by a tension spring 13 d, is provided with a long hole in the radial direction (vertical direction), and is connected to the support member 16 by a headed pin 15. The support member 16 is fixed to the lower surface of the ceiling h of the casing H of the dishwasher.

Since the headed pin 15 is inserted into the long hole 13c of the arm 13b, the joint pipe 13 can move in the direction of the long hole 13c (vertical direction), and the axial direction of the headed pin 15 ( The exhaust pipe 12 can move within the permissible range in the front-rear direction and the left-right direction in the figure, and can swing around the headed pin 15. Accordingly, the joint pipe 13 is supported by the support member 16 with flexibility in the front-rear direction, the up-down direction, and the left-right direction, and the position is adjusted according to the position of the exhaust port 11 and smoothly fitted thereto.
A coil spring 17 is loosely fitted to the exhaust hose 14, and the joint pipe 13 is biased leftward by the coil spring 17. Further, the joint pipe 13 is slidably fitted to the exhaust hose 14, and the exhaust hose 14 is slidably fitted to the hose joint 20.

The free length of the exhaust pipe 12 (the length between the left end of the joint pipe 13 and the right end of the exhaust hose 14 in a free state) is the rear wall 1a when the cleaning tank is pushed in (stored state). 10 mm longer than the distance between the wall and the rear wall w of the dishwasher body. Therefore, when the cleaning tank is pushed in and stored, the ends of the left and right joint pipes 13 are fitted into the exhaust port 11, and the spherical end surfaces thereof are in close contact with the conical surface of the exhaust port 11. At this time, the joint pipe 13 is pushed into the exhaust hose 14 by 10 mm against the coil spring 17, and thereby the exhaust pipe 12 is compressed by more than 10 mm against the coil spring 17. The end surface is lightly pressed against the conical surface of the exhaust port 11 by the biasing force of the coil spring 17 and is connected in an airtight manner.
When the cleaning tank 1 is pulled out, the joint pipe 13 is pushed out by the coil spring 17 and the exhaust pipe 12 is extended by several tens of mm. However, the jumping stroke of the joint pipe 13 is regulated by the headed pin 15, and therefore the exhaust pipe 12. Does not extend any further, the tip of the joint pipe 13 is separated from the exhaust port 11.

When the cleaning tank 1 is pushed in, the connection head 13h of the joint pipe 13 is fitted in the exhaust port 11 and the exhaust pipe 12 is connected to the exhaust port 11, so when the drying process is started, The damper 23 is opened by the exhaust from the exhaust port 11, and the exhaust is discharged to the drain pipe 22 through the exhaust hose 21.
Since the position where the exhaust hose 21 is connected to the drain pipe 22 is outside the drain trap 7, the exhaust hose 21 is smoothly discharged to the drain pipe 22 regardless of the drain trap 7.
When the drying process is completed and the flow of exhaust gas is stopped, the damper 23 is closed, and the communication between the exhaust pipe 12 and the exhaust hose 21 is blocked, thereby preventing the invasion of odor from the drain pipe 22.

In the above embodiment, the exhaust port is a conical concave portion and the connection head is a hemispherical convex portion. However, as shown in FIG. 4, the exhaust port 111 is a hemispherical convex portion, and the connection head 131h of the joint pipe 131 is provided. A conical recess can also be formed. In this case, the hemispherical exhaust port 111 is fitted into the conical connection head 131h, the spherical outer surface abuts on the conical inner surface of the connection head 131h, and the entire circumference closely contacts. Will do.

  The convex portion that fits into the conical concave portion and is in close contact with the inner surface thereof does not necessarily have a spherical shape. As shown in FIG. 5, an annular ring 112a having a semicircular cross section is provided on the outer circumferential surface of the convex exhaust port 112. Thus, the entire circumference of the connecting head 131h can be brought into close contact with the inner surface of the conical recess substantially uniformly. When the annular ring 112a is formed separately, it is possible to increase the adhesion to the inner surface of the conical recess of the connection head 131h by making the ring (a hollow rubber ring or a solid rubber ring).

The exhaust pipe 12 according to the first embodiment is an example in which the joint pipe 13 is slidably fitted to the exhaust hose 14. However, in the example of FIG. 6 (embodiment 2), the joint pipe 13 is connected to the exhaust hose 14. In this example, the exhaust hose 14 is slidably fitted to the hose joint 20. And the mechanism and structure of Example 2 are not different from Example 1, and by the operation of putting in and out of the cleaning tank,
The difference is that the joint pipe 13 and the exhaust hose 14 are integrally moved by the coil spring 17 to the left, or moved integrally to the right against the coil spring 17. In Example 1, only the joint pipe 13 moves but the exhaust hose 14 does not move. Therefore, Example 1 is preferable in that the movable part is lightweight.
It is also possible to adopt a structure in which the exhaust hose 14 is made into a bellows tube, has elasticity, and the joint pipe 13 and the hose joint 20 are fitted and fixed to the end of the exhaust hose 14, respectively.
On the other hand, the center of the centering motion with respect to the exhaust port of the joint pipe 13 in the second embodiment is the hose joint 20, and the radius of curvature of the self-centering motion is large, and therefore, the force by the centering motion is small. Example 2 is preferred.
In the case of the second embodiment, the joint pipe 13 does not have to be a separate body from the exhaust hose 14, and may be integrated.

Further, the support mechanism for supporting the exhaust pipe 12 in front, rear, up, down, left, and right is by the annular flange 13a of the joint pipe 13, the arm 13b, the support member 16, the headed pin 15, the tension spring 13d, etc. As shown in FIG. 6, a simple spring support may be used. This is one in which two tension springs 13d are arranged in a V shape with respect to the flange 13a, and the support by the two tension springs 13d arranged in a V shape is the movement of the exhaust pipe 12 in the front / rear, up / down and left / right directions. Therefore, the exhaust pipe 12 is supported with flexibility by two V-shaped tension springs 13d. The stability of the support to the exhaust pipe 12 by this support mechanism is inferior to that of the support mechanism of FIG. 2, but there is no problem in practical use, and on the other hand, it is excellent in that the mechanism is very simple.
In addition, when exhaust gas cools and the dew condensation water which generate | occur | produces in the exhaust pipe 12 (exhaust hose 14 and joint pipe 13 etc.) becomes a problem, in order to discharge | emit the dew condensation water, as shown in FIG. A drain discharge port 14a is provided at the bottom of the hose 14, a drain discharge valve 14b is connected to the drain discharge port 14a, and an outlet of the drain discharge valve 14b is provided ahead of the drainage check valve via an appropriate drain discharge pipe 14c. It may be connected to a drain pipe and the drain discharge valve 14b may be controlled to open and close in conjunction with the operation of the dishwasher. In addition, the drain discharge port 14a may be disposed at other locations such as the exhaust hose 14 as long as the condensed water discharge function in the exhaust pipe 12 is achieved. Further, the outlet of the drain discharge valve 14b Instead of connecting to the drain pipe, the drain discharge pipe 14c may be piped back to the washing tank of the dishwasher.

1 is an overall view of Example 1. FIG. These are the principal part enlarged views of Example 1. FIG. FIG. 3 is an enlarged sectional view showing a part of FIG. 2. These are the elements on larger scale of the example which changed the fitting relationship of the exhaust port in the Example of FIG. 2, and a connection head. These are some enlarged views which show the modification of the exhaust port by a hemispherical convex part. (A) is sectional drawing of the other example (Example 2) of the support mechanism which supports an exhaust pipe with flexibility, (b) is an arrow XX figure of Fig. (A). These are sectional drawings of the example which provided the drain discharge port in the exhaust hose. FIG. 1 is an overall view of a conventional example. FIG. 10 is an overall view of another conventional example.

Explanation of symbols

1: Cleaning tank 1a: Rear wall of cleaning tank 5: Heater 6: Fan for drying 11: Exhaust port 12: Exhaust pipe 13, 131: Joint pipe 13a: Flange 13b: Arm 13h, 131h: Connection head 14: Exhaust hose 14a : Drain discharge port 14b: Drain discharge valve 14c: Drain discharge pipe 17: Coil spring 20: Hose joint 21: Exhaust pipe 22: Drain pipe 23: Damper H: Dishwasher body w: Rear wall of dishwasher body

Claims (6)

In the built-in type drawer type dishwasher,
The rear wall of the cleaning tank is provided with a conical exhaust port that opens outward,
An exhaust pipe whose tip is detachably connected to the exhaust port is attached to the main body of the dishwasher in the front / rear / up / down / left / right direction.
The tip of the exhaust pipe is a hemispherical connection head, and the exhaust pipe is elastically biased toward the exhaust port,
A drawer type dishwasher having a hose joint on the rear wall of the dishwasher body, and having the other end of the exhaust pipe connected to the hose joint.   The exhaust pipe consists of a joint pipe with an exhaust hose and a hemispherical connection head, and the exhaust hose and the joint pipe are slidably fitted, and the joint pipe can be freely attached to the dishwasher main body in the front, rear, top, bottom, left and right. 2. The drawer type dishwasher according to claim 1, wherein the exhaust pipe is supported and biased toward the exhaust port by a spring, and the exhaust pipe has an elastic buffering action in the longitudinal direction.   The exhaust pipe is composed of a joint pipe having an exhaust hose and a hemispherical connection head. The exhaust hose and the hose joint are slidably fitted to each other, and the joint pipe is freely movable in the front, rear, top, bottom, left and right. The drawer type dishwasher according to claim 1, wherein the drawer pipe is supported by the main body, and the joint pipe is biased toward the exhaust port by a spring, and the exhaust pipe has an elastic buffering action in a longitudinal direction.   The drawer-type dishwasher of Claim 1 with which the said hose joint is provided with the damper and the said damper is equipped with the labyrinth seal. About built-in type drawer type dishwasher
There is an exhaust port on the rear wall of the cleaning tank, and an exhaust pipe is attached to the dishwasher body, if more cleaning tank is pushed out operation of the cleaning tank, aligning the distal end of the exhaust pipe in the vertical and horizontal When the cleaning tank is pulled out while being fitted to the exhaust port, the tip of the exhaust pipe is moved away from the exhaust port so that the tip of the exhaust pipe is in contact with and separated from the exhaust port, and the drying step The exhaust system of the drawer type dishwasher is configured such that the exhaust gas from the exhaust port is discharged from the exhaust port to the fixed passage through the exhaust pipe, and is discharged to the outside from the fixed passage. Built-in type drawer dishwasher exhaust system,
The rear wall of the cleaning tank is provided with a conical exhaust port that opens outward,
An exhaust pipe whose tip is detachably connected to the exhaust port is attached to the body of the dishwasher with flexibility in the front, rear, upper, lower, left and right.
The tip of the exhaust pipe is a hemispherical connection head, and the exhaust pipe is elastically biased toward the exhaust port,
There is a hose joint on the rear wall of the dishwasher body, and the other end of the exhaust pipe is connected to the hose joint.
An exhaust system for a drawer type dishwasher, wherein an exhaust pipe is connected to the hose joint, and an exhaust port of the washing tank communicates with the outside through the exhaust pipe, the hose joint, and the exhaust pipe.

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