CN209985530U - Single-knife kitchen garbage disposer - Google Patents

Abstract

The utility model provides a single-knife kitchen garbage disposer, which belongs to the technical field of machinery. It has solved kitchen garbage disposer and has leaded to the problem of stability because of blocking easily. The utility model discloses a casing is equipped with annular ring gear and sets up the relative ring gear pivoted blade disc in the ring gear in the casing, the interior anchor ring of ring gear has interval distribution's cutting tooth, the upper surface of blade disc only articulates there is an eccentric setting and can be along blade disc upper surface free rotation's cutting knife, the blade of cutting knife can become with the cutting tooth and cut. The cutter head of the garbage disposer is not easy to clamp and has high stability.

Description

Single-knife kitchen garbage disposer

Technical Field

The utility model belongs to the technical field of machinery, a surplus refuse treatment ware in kitchen is related to, especially a surplus refuse treatment ware in single-knife kitchen.

Background

The kitchen waste disposer is mainly used for treating large, small, hard and soft wastes which are easy to deteriorate in daily life in families, restaurants, hotels and dining halls, and comprises the following steps: melon and fruit peel, vegetable root and leaf, fresh corncob, shrimp and crab peel, poultry ossicle, fishbone, thin shell skin, leftover vegetable and rice and other easily-rotten garbage. The main structure of a household garbage disposer comprises a shell with an inlet and an outlet, and a grinding mechanism arranged in the shell, wherein kitchen garbage enters from the inlet and is ground by the grinding mechanism and then discharged from the outlet. Therefore, the core structure of the grinding mechanism is a grinding mechanism which comprises a gear ring and a cutter head matched with the gear ring, the grinding mode is that a plurality of rugged rough surfaces are arranged on the gear ring, the garbage materials with larger shapes are firstly crushed into small particles by a fixed impact block on the upper surface of the cutter head, and the small particles are pushed by the impact block to be finely ground on the rough surface of the gear ring to form powder or smaller particles meeting the requirements.

In order to solve the above problem, one solution is to make the protrusions around the gear ring uniform and smooth, so that when the gear ring is stuck, the friction resistance is small, and the gear ring is not easy to be stuck. However, the protrusions are made smooth, and the pulverizing effect is deteriorated. The other solution is that the impact block is made movable, such as a cutter head for a garbage crusher disclosed in Chinese patent application No. 201510715980.8, and comprises a disc-shaped cutter frame and two cutter blocks, wherein the cutter blocks are fixed on the upper surface of the disc-shaped cutter frame through stainless steel flat-head rivets, and the upper surface of the disc-shaped cutter frame is also provided with a plurality of cutter posts; the knife post is provided with a knife edge with an irregular direction. And breaking the large garbage by using knife columns with different gaps after the large garbage is crushed.

The cutter block is used for impacting and crushing hard garbage and can be made into a short and thick block body, although the cutter block is made to be movable, the situation that the blockage is caused due to the fact that a gap between the short and thick block body and a gear ring is not large enough still exists, particularly, when garbage materials 6 are piled on the upper surface of a cutter head, two impact blocks T can be clamped, the impact blocks T cannot rotate freely, and the blockage is caused due to the fact that the two impact blocks T are blocked as shown in fig. 11.

Disclosure of Invention

The utility model discloses there is above-mentioned problem to current technique, has provided a surplus garbage disposer in single-knife kitchen, the utility model aims to solve the technical problem that how to make surplus garbage disposer in kitchen stability better.

The utility model discloses a following technical scheme realizes: the utility model provides a surplus garbage disposer in single-knife kitchen, includes the casing, is equipped with annular ring gear and sets up the relative ring gear pivoted blade disc in the ring gear in the casing, the interior anchor ring of ring gear has interval distribution's cutting tooth, a serial communication port, the upper surface of blade disc only articulates there is an eccentric setting and can be along the free pivoted cutting knife of blade disc upper surface, the blade of cutting knife can form the shearing with the cutting tooth.

The working process of the kitchen waste disposer is as follows: the cutter head is driven by the motor to rotate at a high speed, kitchen garbage materials falling into the upper surface of the cutter head can be thrown onto the inner annular surface of the gear ring under the action of centrifugal force, the cutting knife hinged on the cutter head is sheared by the gear ring and the cutting teeth on the gear ring under the action of centrifugal force, the garbage materials with larger shapes are pushed to move relative to the gear ring during shearing, because the inner annular surface of the gear ring is provided with the cutting teeth which are distributed at intervals, a layer of the surface layer of the garbage materials with larger particles is sheared off by the cutting teeth under the shearing action of the cutting knife and the cutting teeth, one part of the sheared garbage materials can be remained between two adjacent cutting teeth, the other part of the sheared garbage materials falls into the upper surface of the cutter head and is thrown onto the gear ring again under the action of centrifugal force, and the garbage materials remained between the two adjacent cutting teeth can be sheared with, when the garbage materials left between the cutting teeth are sheared into small particles meeting the requirements, the garbage materials fall to the lower part of the cutter head along the gaps between the cutting teeth, and the process is repeated until all the garbage materials are sheared into small particles meeting the requirements.

This kitchen remains garbage processor adopts articulated cutting knife and ring gear to form and cuts and handle the rubbish material, only directly becomes the tiny particle that meets the requirements with the independent mode of shearing with the rubbish material, does not set up any striking piece through striking breakage on the blade disc, has abandoned through striking piece striking breakage and has ground into likepowder abrasive treatment mode through the ring gear. Compared with the existing mixed garbage material treatment modes such as impact crushing, cutting, grinding and the like, the method only adopts a shearing mode, and particularly, the method also adopts shearing to treat hard garbage with large shape and is difficult to realize. When the kitchen waste disposer meets waste materials with larger shapes and hard shapes, the kitchen waste disposer only cuts the waste materials. Firstly, the cutting knife can freely rotate at will, the rotation is 360 degrees rotation for a circle or nearly rotation for a circle, therefore, when the hard garbage material with larger shape is clamped between the cutting knife and the gear ring, the cutting knife can be swung and adjusted, so that the shearing distance between the cutting knife and the cutting teeth is enlarged, and a smaller block can be cut after the cutting becomes larger, so as to realize the cutting of the hard garbage with larger shape, and secondly, because the upper surface of the cutter head is a compact disc and only one cutting knife is eccentrically hinged, so even if the clamped hard garbage material is large, the cutter head of the cutter can also be greatly rotated to the axis of the cutter head, so that the gear ring and the cutting knife have enough distance for adjustment, the situation that the cutting knife is blocked can not occur, and the closer the cutter head of the cutter is to the axis position of the cutter head, the larger the cutting torque is, the easier the garbage material is sheared off. The smooth upper surface of the cutter head means that the upper surface of the cutter head is free of cutting and crushing structures such as other cutting knives or impact blocks except one cutting knife, and also means that no obstacle blocking the free rotation of the cutting knives exists, for example, a rotating shaft or a motor shaft driving the cutter head to rotate does not exceed the upper surface of the cutter head to block the cutting knives, and the structure can thoroughly eliminate the clamping condition of the cutter head and a gear ring.

In the above-mentioned single-knife kitchen garbage disposer, the cutting knife is rectangular shape, and the inner of cutting knife articulates the eccentric position department on the blade disc, and the outward flange of the preceding lateral wall of cutting knife has the blade. The cutting knife is made into a long strip shape, so that the distance between the hinge point and the gear ring can be further increased, and the hard garbage can not pass through.

In the single-blade kitchen waste disposer, the rear side wall of the outer end of the cutting blade is an inclined surface inclined towards the front side wall of the cutting blade. When the cutter disc upper surface is piled to rubbish material and the cutting knife need retreat, the rubbish material can rise along this inclined plane and then cross the cutting knife, and the cutting knife just can retreat easily like this, can not receive too big hindrance, increases cutting knife free rotation's performance.

In the single-knife kitchen waste disposer, the cutter disc is provided with the counterweight structure and the lug arranged on the upper surface of the cutter disc, and the lug is positioned on the opposite side of the cutting knife. The counterweight structure can enable the gravity center of the cutter head deviated by the single-side cutting knife to fall on the axis of the cutter head again, so that the cutter head rotates stably. And the counterweight structure is arranged on the upper surface of the cutter head, and the convex block is arranged at the opposite side of the cutting knife, so that the left and right gravity centers of the cutter head are also on the axis, and the condition of vertical shaking cannot be caused. Furthermore, a channel which is convenient for garbage materials to pass through is reserved between the lug and the gear ring so as to reduce the occurrence of the situation that the lug and the gear ring are blocked due to the garbage materials, and the lug is in a conical shape. By this arrangement the waste material can rise up the conical surface and over the lugs, eliminating the possibility of the waste material becoming trapped between the lugs and the ring gear. The taper here includes a taper structure like a cone, a truncated cone, a pyramid, etc., and also includes a taper structure with a spherical surface, such as a portion of the top of a sphere, or a taper like an arc.

Besides the structure of the convex block, the rotary balance of the cutter head can be realized in several ways, and the counterweight structure can be a flat plate or a thickened part which is arranged on the upper surface of the cutter head and positioned on the opposite side of the cutting knife, or a raised part which is arranged on the lower side surface of the cutter head and positioned on the opposite side of the cutting knife.

In the single-blade kitchen waste disposer, the impeller is arranged on the lower side surface of the cutter head, extends downwards and is close to the bottom of the shell. The shell can be made into a turbine shell shape, a centrifugal pump structure is formed after the shell is matched with the impeller, when the cutter head rotates, the impeller accelerates the discharge of materials at the bottom of the shell, the impeller can form a stirring effect, and the materials can be suspended in water instead of being deposited at the bottom.

In the single-blade kitchen waste disposer, the cutting teeth are divided into at least two types, namely rough cutting teeth and fine cutting teeth, and the length of the fine cutting teeth is longer than that of the rough cutting teeth. During shearing, the short rough cutting teeth and the cutting knife form shearing to cut off a small part, the long fine cutting teeth and the cutting knife form shearing to cut off a small part. The shearing mode can reduce the shearing force, so that the shearing can be realized by a low-power motor.

In the single-knife kitchen waste disposer, a rough cutting ring is arranged above the gear ring, a plurality of cutting guide surfaces which protrude towards the direction of the ring center and are inclined downwards are arranged on the inner ring surface of the rough cutting ring, the outer edge of each guide surface is a cutting edge, and a notch is formed between one guide surface and the top end surface of one fine cutting tooth. The guide surface and the cutting tooth top end surface form a notch, and the guide surface can enable garbage materials to be gradually guided to the fine cutting notch for cutting.

In the above-mentioned single-knife kitchen garbage disposer, each cutting tooth is rectangular shape and vertical setting, and the leading edge of each cutting tooth has the blade, and the blade sets up downwards to one side. The oblique downward setting can be the bore that enlarges the lower export of material way between two adjacent cutting teeth for the material falls down more easily, can not cause the jam, can also form the point contact of similar scissors with the blade of cutting knife, compares and just can cut off with line contact can use a small amount of moment.

In the single blade kitchen waste disposer, the rear edge of each cutting tooth is an arc-shaped surface. The rear edge of the cutting tooth is an arc-shaped surface and can be easily separated when the cutting knife is reversed and retreated. Secondly, the blade of cutting knife can produce sharp-pointed noise when the high-speed cutting tooth periphery face that passes through of corotation, and makes the cutting tooth trailing edge into the arcwall face, thereby makes the air current can carry out the water conservancy diversion along the arcwall face and reduce and change sharp-pointed noise.

Compared with the prior art, the kitchen garbage disposer has the following advantages:

1. change current striking piece into the cutting knife, handle the rubbish material with the shearing mode in the top of blade disc, can not cause the rubbish material to block up in cutting, and only one cutting knife is connected on the blade disc and can the free rotation with articulated mode, make the adjustment shearing force and the shearing position that the cutting knife can the self-adaptation, avoided the blade disc card to die and lead to the condition that the motor burns out, and keep the focus of blade disc through the counter weight structure, the stability of surplus refuse treatment ware in kitchen has been improved.

2. The impeller is arranged at the bottom of the cutter head, so that materials are finer and can be discharged out in an accelerating mode through the impeller, the phenomenon that the rotating resistance of the cutter head is increased and then the whole operation is influenced due to the fact that the accumulated materials are reversely flowed or blocked is avoided, and the stability of the kitchen waste processor is improved.

Drawings

FIG. 1 is a perspective view of the kitchen waste disposer with the upper cover removed.

Fig. 2 is an exploded view of fig. 1.

Fig. 3 is a top view of the cutting knife in a different position.

Fig. 4 is a cross-sectional view taken at a-a in fig. 3.

Fig. 5 is a schematic structural view of a cutter head according to a second embodiment.

Fig. 6 is a perspective view of the cutting blade.

Fig. 7 is a top view of fig. 6.

Figures 8, 9 and 10 are three views of the cutting knife cutting the waste material.

Fig. 11 is a schematic structural view of a state of the art in which a block is stuck.

Fig. 12 is a dynamic view of the waste material on the lugs.

In the figure, 1, a housing; 1a, a discharge pipe; 1b, a flange; 1c, a step; 1d, a bearing mounting seat; 1e, a discharge cavity; 2. a ring gear; 2a, cutting teeth; 2a1, cutting edge; 2a2, arc-shaped face; 2a3, rough cut cutting teeth; 2a31, top; 2a4, fine cutting of cutting teeth; 2a41, top; 2b, a material channel; 3. A cutter head; 31. mounting holes; 32. a bump; 33. a channel; 4. a cutting knife; 4a, a knife handle; 4a1, front side wall; 4a2, third cutting edge; 4b, a block-shaped tool bit; 4b1, front side wall; 4b2, cutting edge; 4b3, second cutting edge; 4b4, inclined plane; 5. riveting; 6. a waste material; l, a trajectory line; 7. Roughly cutting a ring; 7a, cutting a guide surface; 8. an impeller; 8a, outer edge portion.

Detailed Description

The following are specific embodiments of the present invention, and the technical solutions of the present invention will be further described with reference to the accompanying drawings, but the present invention is not limited to these embodiments.

The first embodiment is as follows:

the kitchen waste disposer comprises an upper cover for placing waste materials and a shell 1 for discharging the materials, wherein a cutting and discharging mechanism is arranged in the shell 1. As shown in fig. 1, which is a perspective view with an upper cover portion removed, a discharge pipe 1a for discharging garbage materials is provided at a lower portion of the housing 1. The cutting device is characterized in that an annular gear ring 2 is arranged in the shell 1, cutting teeth 2a distributed at intervals are arranged on the inner annular surface of the gear ring 2, a cutter disc 3 capable of rotating relative to the gear ring 2 is further arranged in the gear ring 2, the upper surface of the cutter disc 3 is only hinged with a long-strip-shaped cutting knife 4, a rough cutting ring 5 is further arranged above the gear ring 2, and three downward-inclined rough cutting guide surfaces 5a are arranged on the rough cutting ring 5. The garbage materials can be guided downwards by the rough cutting guide surface 5a and roughly cut by the cutting teeth 2a, the cutting knife 4 is matched with the cutting teeth 2a to form shearing, the garbage materials are gradually cut and reduced into small-particle garbage materials, and finally the small-particle garbage materials are discharged by the discharge pipe 1a at the lower part of the shell 1. The shearing here is the motion that two staggered opposite cutting edges are close to each other, and when a cutting edge was motionless, another moving cutting edge sheared with motionless cutting edge jointly, and two staggered cutting edges can have the interval, just can cut out littleer granule like the scissors when the interval of staggered cutting edge is enough little. The utility model discloses it is exactly to utilize articulated cutting knife and cutting tooth cooperation, thereby dwindle gradually after the rubbish material shearing of large granule and cut the clearance gradually and form the tiny particle that meets the requirements. Specifically, the method comprises the following steps:

referring to fig. 1, as shown in fig. 2 and 4, the casing 1 is made of plastic and is cylindrical, the upper edge of the casing is a flange 1b for being fixedly connected with the upper cover, the inner annular surface of the casing 1 is provided with a step 1c for mounting the gear ring 2, the middle of the casing 1 is provided with a through bearing mounting seat 1d, the axis of the cutter head 3 is a mounting hole 31, and a rotating shaft of the motor or a connecting shaft is connected with the bearing and then connected with the mounting hole 31 of the cutter head 3 without exceeding the upper surface of the cutter head 3. When the motor rotates, the cutter head 3 can be driven to rotate at a high speed. The cavity of the shell 1 at the lower part of the cutter head 3 is a discharge cavity 1e, and the cut micro particles fall into the discharge cavity and are discharged by a discharge pipe 1a in the discharge cavity 1 e. Only the eccentric cutting knife 4 that is provided with on blade disc 3, cutting knife 4 passes through rivet 5 and articulates on blade disc 3, can 360 degrees free rotations. The upper surface of the cutter head 3 is a smooth surface, and no other cutting knife or impact block for impact crushing is arranged. At the contralateral of cutting knife 4, generally at the symmetric position, be equipped with the counter weight structure that can balance cutting knife weight.

The counterweight structure is a convex block 32 which is arranged on the upper surface of the cutter head 3 and is positioned at the opposite side position of the cutting knife 4, the convex block 32 is far away from the gear ring 2, a channel 33 which is convenient for garbage materials to pass through is reserved between the convex block 32 and the gear ring 2, in this example, the convex block 32 is conical, and as shown in fig. 12, the convex block 32 with the conical shape can enable any garbage materials to easily pass over the convex block 32. Other alternative shapes for the projections 32 are cylindrical or arcuate surfaces that are easily guided over the waste material, such as a water line surface. The height of the projection 32 may be flush with the height of the cutting head of the cutting blade 4.

As shown in fig. 6 and 7, the cutting blade 4 includes an elongated shank 4a, and the shank 4a may be flat to facilitate the passage of the waste material. The inner end of the cutter handle 4a is hinged on the eccentric position of the cutter head 3, the outer end of the cutter handle 4a is provided with a block-shaped cutter head 4b which is higher than the thickness of the cutter handle 4a, the outer edge of the front side wall 4b1 of the block-shaped cutter head 4b is a cutting edge 4b2, the part, higher than the thickness of the cutter handle 4a, of the inner edge of the front side wall 4b1 of the block-shaped cutter head 4b is a second cutting edge 4b3 which can be used for shearing, and the second cutting edge 4b 3. The upper edge of the front side wall 4a1 of the knife handle 4a is a third cutting edge 4a2, and the rear side wall of the block-shaped knife head 4b is a bevel 4b4 inclined towards the front side wall of the cutting knife. When the garbage materials are fully piled on the upper surface of the cutter head 31, the cutting knife 4 can easily retreat through the inclined surface 4b4 when retreating, the obstruction can not be caused, and the free rotation performance of the cutting knife 4 is increased.

As the alternative scheme of simplifying, cutting knife 4 can be a length form that does not have thickness variation, and the inner of cutting knife 4 articulates the eccentric position department on blade disc 3, only opens at the outward flange of cutting knife 4 preceding lateral wall has the blade, and other places do not have the blade, and the back lateral wall of cutting knife 4 outer end is the inclined plane of the lateral wall slope before to the cutting knife.

This construction of the cutting blade 4 works as follows:

as shown in fig. 8, initial rubbish material 6 is when great, rubbish material 6 is got rid of to ring gear 2 internal ring face under the effect of centrifugal force on, cutting knife 4 is close to rubbish material 6 under the effect of centrifugal force this moment, make rubbish material 6 be in between cutting knife 4 and cutting tooth 2a, cutting knife 4 shears rubbish material with cutting tooth 2a simultaneously, make rubbish material shear down partly, because 6 too big and cutting knife 4 of rubbish material shape are fast in rubbish material 6, cutting knife 4 can retreat backward along the surface of rubbish material, as shown in the dotted line part in fig. 8, make interval grow between cutting knife 4 and the ring gear 2 make cutting knife 4 pass through earlier, can shear rubbish material 6 once more when cutting knife 4 rotates once more. As shown in fig. 9, when the shape of the garbage material 6 is reduced, the remaining garbage material 6 is still stuck in the material path 2b between two adjacent cutting teeth 2a, and due to the reduction of the shape of the garbage material 6, the cutting knife 4 approaches the material under the action of centrifugal force, the garbage material 6 is cut out along the trajectory L by the cutting edge 4b2, and the cutting is repeated in sequence until the garbage material 6 stuck between the cutting teeth 2a is cut into small particles, typically 2 mm-sized cubic particles, by the cutting edge 4b2 cutting the remaining garbage material 6 along the trajectory L as shown in fig. 10. As shown in fig. 12, since the protrusion 32 is conical, the garbage material 6 will climb up and over the protrusion 32 under the guidance of the conical slope, and will not affect the free rotation of the cutter 4.

As shown in fig. 1 and 2, a rough cutting ring 7 is disposed above the ring gear 2, a shearing structure is further disposed between the rough cutting ring 7 and the ring gear 2, and three cutting guide surfaces 7a protruding toward the center of the ring and inclined downward are disposed on the inner annular surface of the rough cutting ring 7. And every cutting tooth 2a is rectangular shape and vertical setting, and the leading edge of every cutting tooth 2a has blade 2a1, and blade 2a1 sets up downwards to one side for enlarge the lower export bore of material way 2b between two adjacent cutting teeth 2a, make the material fall more easily. In order to facilitate the escape of the cutting blade 4 during reverse rotation and reduce sharp noise during forward rotation, the rear edge of each cutting tooth 2a is an arcuate surface 2a2, as shown in the enlarged views of fig. 3 and 10. And the cutting teeth 2a are divided into at least two kinds, i.e., a rough cutting tooth 2a3 and a finish cutting tooth 2a4, in this case three kinds, i.e., the rough cutting tooth 2a3 is subdivided into two cutting teeth 2a3 having different lengths, and the length of the finish cutting tooth 2a4 is longer than that of the rough cutting tooth 2a3, so that a notch interval formed between the tip end 2a41 of the finish cutting tooth 2a4 and the cutting guide surface 7a is smaller than a notch interval formed between the tip end 2a31 of the rough cutting tooth 2a3 and the cutting guide surface 7 a.

As shown in fig. 1, R in the figure is the waste material 6, the waste material 6 is located in the cut between the top end of the rough cutting tooth 2a32a and the cutting guide surface 7a, the cutting knife 4 pushes the waste material 6 to cut along the cutting guide surface 7a, so that the material is cut off, the cutting knife 4 continues to push the waste material 6 to continue cutting along the cutting guide surface 7a until the waste material falls into the gear ring 2 after being cut in the cut between the top end of the fine cutting tooth 2a and the cutting guide surface 7a, and then the gear ring 2 and the cutting knife 4 further cut.

According to the actual needs, there are a plurality of incisions that have cutting tooth 2a and cutting guide surface 7a to form, the discharge velocity of rubbish material 6 can be influenced to the quantity of incision, therefore, be equipped with four impeller 8 and impeller 8 downwardly extending and be close to casing 1 bottom at the blade disc 33 downside, four impeller 8 become the arc piece, evenly set up and in the pivoted process of blade disc 3 according to the circumferencial direction, the impeller can be in the axial of discharge pipe 1a, still can throw rubbish material 6 towards discharge pipe 1a under the effect of centrifugal force when impeller 8 promotes rubbish material 6 like this, the getting rid of material with higher speed. The upper outer edge portion 8a of the impeller 8 is located inside the ring gear 2 and this portion is able to form a shear with the above-mentioned cutting teeth 2a, having the effect of cutting again.

Example two:

the second embodiment is the same as the first embodiment, and as shown in fig. 5, the difference is that the counterweight structure is a flat plate 34 arranged on the upper surface of the cutter disc 31 and located at the opposite side of the cutting knife 4, and four sides of the flat plate are all inclined upwards, so that the garbage materials can conveniently pass over the flat plate 34, and the garbage materials are prevented from being clamped between the convex block and the gear ring. Or the counterweight structure is a thickened part or a raised part which is arranged on the lower side surface of the cutter head 3 and is positioned at the opposite side of the cutting knife 4.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims (10)

1. The utility model provides a surplus refuse treatment ware in single-knife kitchen, includes casing (1), is equipped with annular ring gear (2) and sets up ring gear (2) pivoted blade disc (3) relatively in ring gear (2) in casing (1), the interior anchor ring of ring gear (2) has interval distribution's cutting tooth (2a), a serial communication port, the upper surface of blade disc (3) only articulates there is one and eccentric setting and can be along blade disc (3) upper surface free rotation's cutting knife (4), the blade of cutting knife (4) can form with cutting tooth (2a) and cut.

2. The single-blade kitchen waste disposer of claim 1, wherein the cutting blade (4) is elongated, the inner end of the cutting blade (4) is hinged to the cutter head (3) at an eccentric position, and the outer edge of the front side wall of the cutting blade (4) has a cutting edge (4b 2).

3. A single blade kitchen waste disposer according to claim 1 or 2, wherein the rear side wall of the outer end of the cutting blade (4) is a bevel (4b4) inclined towards the front side wall of the cutting blade (4).

4. The single-blade kitchen waste disposer of claim 3, wherein a counterweight is provided on the blade disc (3).

5. The single-blade kitchen waste disposer of claim 4, wherein the counterweight structure is a projection (32) disposed on the upper surface of the cutter head (3), and the projection (32) is located on the opposite side of the cutter (4).

6. The single blade kitchen waste disposer of claim 5, wherein the lug (32) is tapered.

7. The single blade kitchen waste disposer of claim 6, wherein a channel (33) is formed between the lug (32) and the ring gear (2) for facilitating the passage of waste material.

8. The single-blade kitchen waste disposer of claim 4, wherein the counterweight is a plate (34) or thickened portion disposed on the upper surface of the blade disc (3) opposite to the cutting blade (4), or a raised portion disposed on the lower side of the blade disc (3) opposite to the cutting blade (4).

9. A single-blade kitchen waste disposer according to claim 1 or 2, wherein the impeller (8) is provided on the lower side of the cutter head (3) and the impeller (8) extends downward and is close to the bottom of the housing (1).

10. The single blade kitchen waste disposer of claim 1, wherein the cutting teeth (2a) are divided into at least two types, a rough cutting tooth (2a3) and a fine cutting tooth (2a4), and the length of the fine cutting tooth (2a4) is longer than that of the rough cutting tooth (2a 3).

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