JP2000254632A - Garbage disposer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a garbage disposer capable of rotating a conveying screw with good balance in a dehydrating screen thereby eliminating defective rotation balance of the conveying screw. SOLUTION: In this garbage disposer constituted so that, in a cylindrical dehydrating screen 3 in which plural dehydrating holes 32 are formed, an introducing port into which pulverized garbage is introduced is formed in the lower end part thereof, and also a conveying screen is arranged therein so that it is subjected to freely rotary driving and the pulverized garbage introduced into the dehydrating screen 3 from the introducing port is dehydrated while conveyed upward by the forward rotation of the conveying screen and is discharged from a discharge port, in the peripheral surface of the dehydrating screen 3, projected line bodies 3a, 3b, 3c bulged upward from the peripheral surface and long in the up and down directions are formed at least in two stages up and down and shifting in the peripheral direction to each other. And by these projected line bodies 3a, 3b, 3c, the bulged parts thereof are formed from the lower end part of the dehydrating screen 3 whose bulged parts go out from the surface of the water to the upper end thereof.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a garbage disposal apparatus for treating garbage discharged from a kitchen or the like at home.

[0002]

2. Description of the Related Art Conventionally, as a garbage disposal apparatus, for example, as disclosed in Japanese Patent Application Laid-Open No. H3-110099, garbage introduced into an inlet formed at the bottom of a kitchen sink is pulverized by a disposer. After that, the pulverized garbage was introduced into the lower part of the dewatering screen, dewatered while being conveyed above the dewatering screen by a conveying screw provided in the dewatering screen, and formed at the upper end of the dewatering screen. What is discharged to the outside from the discharge port is provided.

[0003]

However, when the crushed garbage is conveyed upward by the conveying screw and discharged from the discharge port at the upper end as in the conventional case, the crushed garbage is conveyed by the conveying screw. In addition, there has been a problem that a phenomenon occurs in which the upper surface of the transport screw slides, and the crushed garbage cannot be transported efficiently.

[0004] In order to solve this problem,
A garbage crushing treatment apparatus described in Japanese Patent Application Laid-Open No. Hei 5-184963 is provided. This garbage crushing apparatus forms a bent portion projecting inward from the dewatering screen from the lower end to the upper end of the dewatering screen in a straight line continuously. By hooking the crushed garbage on the side of the section, the slipping of the crushed garbage on the upper surface of the screw portion of the transport screw is suppressed, and efficient transport is performed.

However, in the above-mentioned conventional garbage crushing apparatus, since the bent portion is formed linearly and continuously from the lower end to the upper end of the dewatering screen, it is always at a fixed position when viewed from the circumferential direction. This means that you are catching crushed garbage. Therefore, the load of the crushed garbage acting on the transport screw is concentrated on a certain position of the transport screw, and this load impedes the smooth rotation of the transport screw and causes the transport motor to rotate and drive the transport screw. In addition to causing troubles, the rotational balance of the transport screw is deteriorated, and thus the leading edge of the screw portion slidingly contacting the inner wall of the dewatering screen has a problem of being quickly worn.

[0006]

According to a first aspect of the present invention, there is provided a garbage disposal apparatus, wherein a cylindrical dewatering screen having a plurality of dewatering holes formed on a peripheral surface thereof is provided upright, and a lower end of the dewatering screen is provided at a lower end of the dewatering screen. Is formed with an introduction port into which crushed garbage crushed by the crushing means is introduced, and a transport screw is rotatably arranged in the dewatering screen by a driving means, and introduced into the dewatering screen from the introduction port. In a garbage disposal apparatus configured to dewater while crushing garbage is conveyed upward by rotating the conveying screw forward and discharge the garbage from a discharge port provided at the upper end of the dewatering screen, On the surface, vertically long ridges bulging outward from the peripheral surface are formed in at least two stages vertically and displaced in the circumferential direction. , In which the bulging portion is formed across from the lower end to the upper end portion of the dehydration screen going out on the water surface.

[0007] The garbage disposal apparatus of the invention according to claim 2 is:
The outlet provided at the upper end of the dewatering screen,
The crushed garbage discharged from the discharge port is connected to a processing chamber for decomposing the garbage.

[0008]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows a schematic configuration of a garbage disposal apparatus according to the present invention. In FIG. 1, reference numeral 1 denotes a sink installed in a kitchen such as a home, and an input port 11 is provided at an appropriate position at the bottom of the sink 1.

In the upper part of the sink 1, this sink 1
A water injector 12 for injecting water therein is provided.

Below the input port 11, this input port 1
A disposer 2 as a pulverizing means for finely pulverizing the garbage thrown into 1 is connected in series, and the garbage is crushed by the disposer 2 by driving a crushing motor 21.

The disposer 2 is communicated with an inlet 31 formed at the lower end of the dewatering screen 3 through a communication passage 22 formed of a flexible pipe or the like. It is introduced into the dewatering screen 3 through the introduction port 31 together with the water discharged from 12.

The dewatering screen 3 is formed in a cylindrical shape, and has a plurality of dewatering holes 32 formed on a peripheral surface thereof.

Further, on the peripheral surface of the dewatering screen 3, FIG.
As shown in FIG. 5, a plurality of sets of a set of ridges 3a, 3b, 3c which are swelled outward from the peripheral surface and are long in the vertical direction are provided.

The ridges 3a, 3b, 3c are formed from the lower end to the upper end of the dewatering screen 3, which are slightly shifted in the circumferential direction and are discontinuous from the water surface in a discontinuous state. When viewed as a whole, the swelling portion is formed from the lower end to the upper end of the dewatering screen 3 by the bodies 3a, 3b, and 3c.

In the illustrated example, the set of ridges 3a, 3a
b, 3c are formed at an interval of 120 °, and the respective ridges 3a, 3b, 3c are also equidistant (in this case, 40
(Interval) is shifted.

In the dewatering screen 3, a transport screw 5 is rotatably provided. Transport screw 5
Is composed of a shaft portion 51 and a screw portion 52 spirally formed on the shaft portion 51, and the shaft portion 51 is vertically arranged coaxially with the axis of the dewatering screen 3.

The tip of the screw portion 52 is disposed in contact with the inner wall of the dewatering screen 3 or with a slight clearance between the inner wall and the inner wall.

At the leading edge of the screw portion 52, FIG.
The insert plate 53 shown in FIG. The insert plate 53 is provided at the above-mentioned front end edge over a predetermined height from the lower end of the screw portion 52 (in the illustrated example, to a position of about 1.5 turns from the lower end).

As shown in FIG. 4, the insert plate 53 is a thin plate having a front edge 53a formed in a continuous irregular shape. By continuously arranging a plurality of sheets so as to slightly protrude toward the inner wall, they are provided at the leading edge of the screw portion 52 as described above.

As a specific mounting structure, as shown in FIG. 5, a mounting groove 52a is formed at a distal end portion of a screw portion 52 on which an insert plate 53 is disposed, and a screw hole 52b is formed at a proper position on the lower surface of the mounting portion. On the other hand, the insert plate 53 has a screw hole 53 corresponding to the screw hole 52b.
c (see FIG. 4). And the insert plate 53
Into the mounting groove 52a, and
The insert plate 53 is attached to the leading edge of the screw portion 52 by inserting screws into b and 53c and fixing the screws.

The transport screw 5 can be easily formed by injection molding using a synthetic resin. The insert plate 53 is made of, for example, stainless steel, which has higher wear resistance than the synthetic resin transfer screw 5.

A transport motor 54 as a driving means is connected to the lower end of the shaft portion 51 penetrating from the bottom of the dewatering screen 3, and the transport screw 54 rotates the transport screw 5 in the forward and reverse directions. The crushed garbage introduced into the dewatering screen 3 by the forward rotation of the transport screw 5 is transported upward through the upper surface of the screw portion 52.

The opening at the upper end of the dewatering screen 3 is
The crushed garbage, which is covered with the cover member 34 having the cover 3 and is conveyed upward by the conveyance screw 5, is discharged to the outside from the discharge port 33.

At the upper end of the conveying screw 5, a cam member 55 as shown in FIG. 6 is provided integrally with the shaft portion 51, and the scraping member 6 is swingable in the horizontal direction close to the cam member 55. It is provided in. The scraping member 6 has a base end 61 with a vertical pin 6
3, the tip end 62 is urged by an urging member (not shown) so as to always contact the peripheral surface of the cam member 55. Thereby, the scraping member 6 repeatedly swings in the direction of the arrow by the tip end portion 62 slidingly contacting the peripheral surface of the cam member 55 with the rotation of the transport screw 5, so that the shaft portion of the transport screw 5 The garbage can be scraped out of the discharge port 33 by the operation of moving from the to the discharge port 33.
The scraping member 6 also has the function of peeling off the crushed garbage adhering to the peripheral surface of the cam member 55 by sliding contact of the tip end portion 62.

The case 4 is provided with a drain port 41 for draining water separated from the crushed garbage by a dehydrating action when the crushed garbage is transferred upward by the transfer screw 5. The drain port 41 is of an overflow type that is drained through the drain port 41 when the water separated by the dehydration exceeds a predetermined water level, and is provided with a drain pipe (not shown) through a drain pipe 42 connected to the drain port 41. It is drained outside.

A processing chamber 7 for disassembling the dewatered crushed garbage is disposed on the side of the case 4 facing the discharge port 33. Is dropped down to the bottom of the processing chamber 7.

At the bottom of the processing chamber 7, there is provided a processing tank 72 for storing and treating the pulverized raw garbage, and a predetermined amount of decomposition chips is stored in the processing tank 72 in advance.

A stirring member 73 is provided in the processing tank 72. The stirring member 73 includes a stirring shaft 74 horizontally provided at a predetermined height in the processing tank 72 and a stirring shaft 7.
The stirring motor 75 is connected to one end of a stirring shaft 74 and includes a plurality of stirring rods 75 protruding outward.
The stirring member 73 is rotated by the driving of the
At the tip end of 5, the crushed garbage put into the processing tank 72 and the decomposition chips stored in the processing tank 72 are stirred.

The above-mentioned decomposed chips are used to promote the fermentation of crushed garbage, and for example, wood chips and firgrass are used.

Further, a heater 76 for adjusting the temperature is disposed below the bottom of the processing tank 72.
By heating the crushed garbage and the decomposed chips in the processing tank 72 by 6, the decomposing process of the crushed garbage is promoted in combination with the stirring action of the stirring member 73.

The processing tank 72 is provided with a full sensor (not shown) for detecting that the processing object gradually stored in the processing tank 72 becomes full due to the decomposition processing of the crushed garbage. I have.

An exhaust port 77 is formed in the upper part of the processing chamber 7. One end of an exhaust pipe 78 having an exhaust fan 79 is connected to the exhaust port 77, and the other end of the exhaust pipe 78 is connected to the case. 4 communicates with a space 43 facing the drain 41.

The space 43 is defined by the dewatering screen 3 and a partition plate 44. The lower end of the partition plate 44 is constantly immersed in water that has been separated by dehydration and accumulated in the case 4, whereby the space 43 in the case 4 is completely sealed from the dehydration screen 3. ing. Therefore, the exhaust pipe 79 is
The odor and moisture generated in the processing chamber 7 introduced into the space 43 through the drain 8 together with the water overflowing from the drain 41 without leaking to the dewatering screen 3 side.
Exhausted to the outside.

The processing chamber 7 and the case 4 configured as described above are integrally provided in the present embodiment.

Here, a sensor 56 is provided at the lower end of the transport motor 54. As the sensor 56, for example, a photo sensor is used. By detecting the number of rotations of a fan (not shown) connected to the rotation shaft of the transport motor 54, the transport speed of the crushed garbage by the transport screw 5 is indirectly detected. It is configured to detect.

Next, the processing of garbage by the garbage processing apparatus configured as described above will be described.

Raw garbage from homes and the like is transferred to the kitchen sink 1
Into the charging port 11 together with water. The garbage introduced into the inlet 11 is crushed by the disposer 2,
The water is introduced into the dewatering screen 3 from the inlet 31 of the dewatering screen 3 through the communication path 22 together with the water.
Is transported upward along the upper surface of the screw portion 52.

The crushed garbage is conveyed by the screw portion 52 and dewatered by the water being separated from the dewatering holes 32 to the outside of the dewatering screen 3, and is conveyed from the upper end of the dewatering screen 3 to the discharge port 33. .

At this time, the crushed garbage conveyed along the upper surface of the screw portion 52 is divided into the ridges 3a, 3b, 3c.
Of the crushed garbage on the upper surface of the screw portion 52 by being caught by the side of each of the ridges 3a, 3b, 3c opposed to the crushed garbage feed direction, thereby reducing the efficiency of the conveying screw 5. Good transportation.

Also, since the convex strips 3a, 3b, 3c of each set are formed at equal intervals from the lower end to the upper end of the dewatering screen 3, the positions where the crushed garbage are caught are even when viewed from the circumferential direction. Thus, the load of the crushed garbage acting on the transport screw 5 is evenly distributed. Therefore, the transport screw 5 can be smoothly rotated, the load on the transport motor 54 can be reduced, the failure of the transport motor 54 due to the increased load can be prevented, the rotational balance of the transport screw 5 is good, and the inner wall of the dewatering screen 3 is good. The abrasion of the leading edge of the screw portion 52 that slides with the screw portion 52 can also be suppressed.

Further, since the convex portion 53b of the distal end 53a of the insert plate 53 projecting from the distal end of the screw portion 52 slides on the inner wall of the dewatering screen 3, the convex 53
By b, the crushed garbage which is going to adhere to the inner wall of the dewatering screen 3 can be scraped off. As a result, the transportation of the crushed garbage can be prevented from being hindered by the adhesion of the crushed garbage to the inner wall of the dewatering screen 3, and the crushed garbage can be efficiently transported by the transport screw 5. Further, clogging of the dewatering hole 32 due to crushed garbage can be prevented.

On the other hand, the water discharged from the dewatering hole 32 to the outside of the dewatering screen 3 is discharged from a drain port 41 to a drain pipe 42.
The water is drained out of the case 4 through the

As described above, when separating the crushed garbage and the water in the dewatering screen 3, the crushed garbage is caught between the tip of the screw portion 52 of the transport screw 5 and the inner wall of the dewatering screen 3. When the conveying speed of the crushed garbage by the conveying screw 5 is lower than a preset value, the sensor 56 detects the decrease in the number of rotations of the rotating shaft of the conveying motor 54, thereby indirectly detecting this case. To detect.

Thus, in the control device (not shown), based on the detection result of the sensor 56, the transport screw 5 is rotated in the reverse direction, and when the transport screw 5 is rotated in the reverse direction by a predetermined rotation (for example, three rotations), it is rotated forward again. Then, when the sensor 56 again detects a decrease in the rotation speed of the rotating shaft of the transport motor 54 during the forward rotation, the transport screw 5 is rotated in the reverse direction in the same manner as described above. That is, the forward rotation operation and the reverse rotation operation are repeatedly performed until the rotation shaft of the transport motor 54 rotates forward at a preset rotation speed or more.

By controlling the driving of the transport screw 5 in this way, the transport screw 5 releases this bite only when the crushed garbage actually bites into the screw portion 52 and the inner wall of the dewatering screen 3. For this reason, the crushed garbage can be conveyed upward and dewatered more efficiently.

In the vicinity of the discharge port 33, the scraping member 6
Of the cam member 54 is slid in contact with the peripheral surface of the cam member 54 as the transport screw 5 rotates, whereby the horizontal movement of the scraping member 6 is repeated. The crushed garbage is forcibly scraped out of the discharge port 33 by the operation of moving from the shaft core portion toward the discharge port 33. In this way, the scraping member 6 scrapes the crushed garbage, so that the crushed garbage can be smoothly discharged to the outside of the discharge port 33.

Then, a chute 71 is provided from the discharge port 33.
Crushed garbage discharged into the processing chamber 7 through the
In the treatment tank 72, the decomposition chip is suitably stirred by the stirring member 73, and is rapidly fermented by the heating by the heater 76 to be decomposed.

In this decomposition process, odor and moisture generated in the processing chamber 7 are exhausted by an exhaust fan 79 to an exhaust port 77.
Then, the air is introduced into the space 43 in the case 4 through the exhaust pipe 78, and is exhausted to the outside together with drainage from the drain port 41 through the drain pipe 42.

Due to the decomposition of the crushed garbage in the processing chamber 7 described above, the processed material is gradually stored in the processing tank 72, and when the processed material becomes full in the processing tank 72,
A full sensor detects this. If this detection is detected, the operation is stopped, the processing object in the processing tank 72 is taken out of the processing chamber 7 through an opening / closing door (not shown), and a predetermined amount of disassembly chips is newly introduced into the processing tank 72. The garbage is decomposed in the same manner as described above.

[0051]

As described above, according to the garbage disposal apparatus of the present invention, at least one of the vertically extending ridges bulging outward from the peripheral surface is formed on the peripheral surface of the dewatering screen. It is formed in two stages and shifted in the circumferential direction, and the swelling portion is formed from the lower end to the upper end of the dewatering screen that emerges on the water surface by these ridges. When the position where the dust is caught is viewed from the circumferential direction, the dust is dispersed, whereby the load of the crushed garbage acting on the transport screw is also dispersed. Therefore, the transport screw can be smoothly rotated, the load on the drive means of the transport screw can be reduced, the failure of the drive means due to the increased load can be prevented, the rotation balance of the transport screw is good, and the inner wall of the dewatering screen slides. Wear of the leading edge of the screw portion in contact can also be suppressed.

Further, by providing a processing chamber for decomposing and processing pulverized garbage at the discharge port, a garbage processing apparatus capable of completely processing garbage discharged from a home or the like at the home or the like is provided. This eliminates the need to take out garbage when collecting garbage, which is convenient.

[Brief description of the drawings]

FIG. 1 is a diagram showing a schematic configuration of a garbage disposal apparatus of the present invention.

FIG. 2 is a perspective view showing a dewatering screen.

FIG. 3 is a partially cutaway side view showing a transport screw provided in a dewatering screen.

FIG. 4 is a plan view showing an insert plate.

FIG. 5 is a partially cutaway side view showing a mounting groove formed in the transport screw.

FIG. 6 is a partially cutaway plan view showing the upper end portion of the transport screw and its periphery.

[Explanation of symbols]

 2 Disposer (crushing means) 3 Dehydration screen 3a, 3b, 3c Convex strip 31 Inlet 32 Dehydration hole 33 Discharge port 5 Transport screw 52 Screw section 54 Transport motor (drive means) 7 Processing chamber

Claims (2)

[Claims] 1. A cylindrical dewatering screen having a plurality of dewatering holes formed on a peripheral surface thereof, and an inlet for introducing crushed garbage crushed by crushing means is provided at a lower end of the dewatering screen. While being formed, a transport screw is rotatably arranged in the dewatering screen by a driving means,
The crushed garbage introduced into the dewatering screen from the inlet is dewatered while being conveyed upward by rotating the conveying screw forward, and is discharged from a discharge port provided at the upper end of the dewatering screen. In the garbage disposal apparatus, on the peripheral surface of the dewatering screen, a vertically long ridge that bulges outward from the peripheral surface is formed in at least two stages vertically and shifted in the circumferential direction, A garbage disposal apparatus characterized in that the bulging portion is formed from the lower end to the upper end of the dewatering screen that has risen above the water surface by these ridges. 2. The method according to claim 1, wherein the outlet provided at the upper end of the dewatering screen communicates with a processing chamber for decomposing crushed garbage discharged from the outlet. Garbage disposal device.