CN219965957U - Crushing and squeezing device for kitchen garbage disposer - Google Patents

Abstract

The utility model relates to a crushing and squeezing device for kitchen waste processor, comprising: a case; the screw rod assembly is arranged in the working chamber and comprises two screw rods which are arranged side by side and can rotate around respective axes, the screw rod assembly is sequentially divided into a crushing section and a squeezing section along the material flow direction in the working chamber, at least two crushing blades which are spirally arranged along the axial direction of the corresponding screw rod are arranged on the part corresponding to the crushing section on each screw rod, the crushing blades on each screw rod are circumferentially arranged at intervals along the corresponding screw rod, the crushing blades on the two screw rods are mutually meshed and convey garbage materials forwards, and the squeezing blades which are spirally arranged along the axial direction of the corresponding screw rod are arranged on the part corresponding to the squeezing section on each screw rod. The advantages are that: the garbage can be crushed and thinned through occlusion, and garbage materials can be conveyed forwards along the axial direction while being thinned and crushed, so that the garbage materials are fully crushed.

Description

Crushing and squeezing device for kitchen garbage disposer

Technical Field

The utility model relates to the technical field of garbage disposers, in particular to a crushing and squeezing device for a kitchen garbage disposer.

Background

The kitchen waste often contains a large amount of waste liquid, and is inconvenient to transport and treat, so that the kitchen waste is crushed and squeezed through a waste processor.

The Chinese patent application No. CN202220944217.8 (issued to the public No. CN 217191586U) discloses a kitchen waste crushing device, which comprises a crushing box, wherein two crushing rollers are rotatably arranged at the top end of the inner part of the crushing box in a matched manner, two first motors are arranged on the outer side of the crushing box and are respectively in transmission connection with the corresponding crushing rollers, an arc-shaped filter screen is arranged below the two crushing rollers, a spiral conveying shaft is rotatably arranged above the arc-shaped filter screen, a second motor is arranged on one side wall of the crushing box in a matched manner, a waste discharge pipe is arranged on the other side wall of the crushing box in a matched manner, a waste liquid collecting box is integrally arranged at the bottom of the crushing box, and a liquid discharge pipe is arranged at the bottom end of the side wall of the waste liquid collecting box. This kitchen garbage reducing mechanism can realize the waste liquid and the separate processing of waste material when kitchen garbage is smashed, strengthens crushing effect, improves the convenience of use.

However, the kitchen waste crushing device disclosed in the above patent application has a certain disadvantage, firstly, the crushing roller in the patent application is positioned above the spiral conveying shaft, namely kitchen waste materials are fed from above the crushing roller, the materials directly fall from a gap between the two crushing rollers when the crushing roller rotates, then the dehydration and squeezing purpose is achieved through rotation of the spiral conveying shaft, and the layout mode of crushing the materials above and squeezing the materials below is limited because the crushing time of the materials is too short, and the materials fall down to the spiral conveying shaft to be squeezed when the materials are not sufficiently crushed, so that the crushing and squeezing effects are limited. Secondly, crushing roller and screw conveying axle are driven by different motors respectively, and the more motor of quantity for kitchen garbage treater's whole volume increases, and area increases, has also increased manufacturing cost.

Therefore, the existing kitchen waste crushing device needs to be further improved.

Disclosure of Invention

The utility model aims to solve the first technical problem of providing a crushing and squeezing device for a kitchen waste processor, which can fully crush kitchen waste materials and improve squeezing and dewatering effects.

The second technical problem to be solved by the utility model is to provide a crushing and squeezing device for a kitchen waste processor, which has the advantages of compact structure, small volume and low production cost.

The first technical scheme adopted by the utility model for solving any one of the first technical problem and the second technical problem is as follows:

a crushing and squeezing device for a kitchen waste processor, comprising:

the box body is provided with a working chamber, a feeding hole for the garbage material to be treated to enter the working chamber and a discharging hole for the treated garbage material to be discharged outside the working chamber;

the screw rod assembly is arranged in the working cavity and comprises two screw rods which are arranged side by side and can rotate around respective axes, and the two screw rods extend from the position of the feed inlet of the box body to the position of the discharge outlet;

the screw rod assembly is divided into a crushing section and a squeezing section in turn along the material flowing direction in the working chamber, each screw rod is provided with at least two crushing blades which are spirally arranged along the axial direction of the corresponding screw rod at the position corresponding to the crushing section, each crushing blade on each screw rod is circumferentially arranged at intervals along the corresponding screw rod, the two crushing blades on the screw rods are mutually meshed and convey garbage materials towards the squeezing section, each screw rod is provided with a squeezing blade which is spirally arranged along the axial direction of the corresponding screw rod at the position corresponding to the squeezing section, and the two squeezing blades on the screw rods are mutually matched to squeeze and dewater the garbage materials and convey the garbage materials towards the position where the discharge port is located.

As an improvement, the crushing blades on the two screws are three, and the three crushing blades on each screw are uniformly arranged along the circumferential direction of the corresponding screw.

The three crushing blades uniformly arranged on the screw rod form a three-line cutter structure, so that the radial stress distribution of the screw rod shaft presents an optimal stress state, and the crushing effect on the garbage materials is ensured.

As an improvement, the screw pitches of the crushing blades on each screw are equal, the screw pitch of the extrusion blade on each screw is gradually reduced along the conveying direction of the materials in the working chamber, and the screw pitch of the crushing blade on each screw is larger than the maximum screw pitch of the extrusion blade on the screw.

According to the structure design, the large-pitch design at the front end of the extrusion blade can realize rapid feeding, and the extrusion blade is matched with the feeding of the front crushing blade (also with large pitch), so that residues in the garbage material conveying process are reduced, and the garbage material sent out by the crushing section can be extruded by the extrusion blade of the downstream extrusion section in the rapid conveying process. On the basis, when the waste materials are conveyed to a small pitch area at the rear end of the screw, the waste materials are squeezed to ideal requirements.

As an improvement, a side knife is provided on the top wall of the working chamber adjacent to the end of the crushing section in a direction substantially perpendicular to the axial direction of the screws and adapted to form a shearing fit with the crushing blades on both screws.

The side cutters are vertically arranged above the two screws, and an included angle structure can be formed after the side cutters are encountered when the garbage is conveyed, so that the garbage can be forcedly sheared between the side cutters and the crushing blades, and the crushing effect is ensured.

In order to effectively tear the garbage materials with large volume, ensure the crushing effect, each crushing blade on the screw rod is provided with a blade root connected with the screw rod and a blade outer edge far away from the blade root, the blade outer edge of the crushing blade is provided with convex teeth protruding outwards, and the convex teeth on the two screw rods form shearing fit in the rotating process along with the screw rods.

The convex teeth on the crushing blades are in a staggered engagement state, the rotation directions of the two screws are opposite, and the convex teeth also rotate along with the operation of the crushing blades of the screws, so that an inward engagement state is formed, and the kitchen waste with a large volume can be torn down after encountering the convex teeth. In addition, as the crushing blade is in a spiral state, the movement track of the convex teeth in the rotating process along with the screw is circular, and correspondingly, the convex teeth are in a sharp inclined tooth state in the rotating process along with the crushing blade, so that the convex teeth can have good cutting and pulling effects on garbage during the rotating operation, and the garbage is disturbed or bitten to realize feeding.

In order to realize continuous discharging of garbage materials and ensure extrusion effect, the working chamber is provided with a discharging plate at the tail end position adjacent to the feeding direction of the working chamber, the discharging plate is basically vertical to the axial direction of the first screw rod and the second screw rod, discharging holes are distributed on the parts corresponding to the end positions of the two screw rods of the discharging plate, and the discharging holes on the discharging plate form the discharging holes together.

In order to shear the garbage materials entering the discharge hole at the discharge plate, the extrusion blade on each screw is provided with an end face knife which protrudes towards the discharge plate and can form shearing fit with the inner side wall of the discharge plate at the part opposite to the discharge plate.

In order to facilitate the garbage discharge after crushing and squeezing, the garbage is prevented from being blocked at the discharge hole, and each discharge hole on the discharge plate is a horn hole with caliber gradually increasing along the discharge direction.

As an improvement, a grinding cylinder sleeved outside the screw rod assembly is further arranged in the working chamber, the grinding cylinder is formed by combining an upper cylinder body and a lower cylinder body, and the lower cylinder body is positioned below the screw rod assembly and is provided with water leakage holes.

The upper cylinder body positioned above the screw rod assembly can prevent water and part of small garbage generated during the operation of the screw rod assembly from flowing out of the upper part, prevent the garbage from flowing out and then staying in the upper part to be odorized and can not be cleaned. The upper cylinder body can also play a role in fixing the lower cylinder body, so that the strength and stability of the whole grinding cylinder are ensured. The lower cylinder body positioned below the screw assembly is provided with the water leakage holes, so that the separation of water and garbage can be realized, and the cleaning is convenient.

As an improvement, the aperture of the water leakage hole on the part of the lower cylinder corresponding to the crushing section is larger than that of the water leakage hole on the part of the lower cylinder corresponding to the squeezing section, the part of the lower cylinder adjacent to the discharge hole is a sealing area without the water leakage hole, and the dimension range of the sealing area in the axial direction is 5-80 mm.

The area corresponding to the crushing section is adjacent to the feeding hole area, the aperture of the water leakage hole is slightly larger, and the large hole is arranged as a large hole area, so that most of water in the garbage can be discharged fastest, and at the moment, the garbage is relatively large in volume and is not easy to discharge through the water leakage hole. When the garbage material enters the squeezing section of the screw rod assembly, the aperture of the water leakage hole is slightly smaller and is a small hole area, and when the pressure ratio of the garbage entering the single-wire knife is larger, the water leakage hole is correspondingly reduced, so that part of fine garbage can be prevented from being discharged. When the garbage enters the tail garbage discharge hole, the grinding cylinder is designed to be a hole-free area because the extrusion pressure of the garbage in the area is the largest, so that the tiny garbage can be prevented from being extruded out of the water leakage hole, and the garbage materials can be smoothly discharged through the discharge hole after being pressurized.

In order to further crush the materials flowing out of the crushing section of the screw assembly and send the crushed materials into the squeezing section, the screw assembly is guaranteed to further comprise a shearing section located between the crushing section and the squeezing section, a plurality of shearing teeth protruding outwards along the radial direction of the screw and distributed in sequence along the circumferential direction of the screw are arranged on the part, corresponding to the shearing section, of each screw, and the shearing teeth on the two screws form shearing fit in the rotating process along with the corresponding screw.

In order to avoid the material to remain in the shearing section of screw rod subassembly, every in the shearing tooth group of a set of shearing tooth that sets gradually in the circumference on the screw rod, every the screw rod is equipped with two at least shearing tooth groups in proper order along its axial, every two adjacent shearing tooth groups on the screw rod are respectively noted as first shearing tooth group and second shearing tooth group, each shearing tooth in first shearing tooth group with each shearing tooth in the second shearing tooth group in the axial on the screw rod is in order to arrange along the direction basically unanimous with the spiral inclination of the crushing blade on this screw rod.

By the aid of the structural design, the shearing teeth of two adjacent shearing tooth groups on the screw are arranged according to the same inclination as that of the crushing blades, so that the shearing tooth groups also have a certain function of rotating and pushing garbage, and residues of garbage materials in the shearing teeth can be avoided.

In order to improve the shearing effect on the garbage materials, each shearing tooth group on one screw rod and each shearing tooth group on the other screw rod are sequentially arranged at intervals along the axial direction of the screw rod assembly.

Compared with the prior art, the utility model has the advantages that: the screw rod assembly is sequentially divided into a crushing section and a squeezing section along the extending direction of the screw rod assembly, and the purposes of quickly crushing and continuously separating garbage from water can be achieved in the process of treating garbage materials. Wherein, two screw rods are the coupled state when rotatory, and the crushing blade of the anterior segment of screw rod can a large amount of bites into rubbish material under the state of mutual coupling, provides fine help for rubbish feeding, also can smash the refinement through the interlock with bulky rubbish simultaneously, also can carry rubbish material along axial forward when refining the crushing, has realized fully smashing to rubbish material. On the other hand, as the crushing blades for crushing the garbage materials and the squeezing blades for squeezing and dewatering are sequentially arranged along the axial direction of the screw rods, the two screw rods are driven to rotate only by one driving mechanism, so that the number of the driving mechanisms is reduced, the garbage processor is compact and small as a whole, and the occupied area is reduced.

Drawings

FIG. 1 is a schematic perspective view of a crushing and wringing device according to embodiment 1 of the present utility model;

FIG. 2 is a schematic view showing a perspective view of a crushing and wringing device according to embodiment 1 of the present utility model;

FIG. 3 is a cross-sectional view of the crushing and wringing device of embodiment 1 of the present utility model taken along a plane passing through the axes of two screws;

FIG. 4 is a cross-sectional view at A-A in FIG. 3;

FIG. 5 is a cross-sectional view at B-B in FIG. 3;

FIG. 6 is a schematic perspective view of the crushing and wringing device of embodiment 1 of the present utility model, with the components such as the box and screw assembly omitted;

FIG. 7 is a schematic view of a crushing and wringing device according to embodiment 1 of the present utility model, showing a perspective view from another angle, with the components such as the box and the screw assembly omitted;

FIG. 8 is a top view of the screw assembly of example 1 of the present utility model;

FIG. 9 is a schematic perspective view of one of the screws in embodiment 1 of the present utility model;

fig. 10 is a schematic perspective view of a garbage disposer in accordance with embodiment 1 of the present utility model;

fig. 11 is a vertical sectional view of the garbage disposer of embodiment 1 of the present utility model taken along the left-right direction;

FIG. 12 is a schematic perspective view of a screw assembly according to embodiment 2 of the present utility model;

FIG. 13 is a top view of the screw assembly of example 2 of the present utility model;

fig. 14 is a schematic perspective view of one of the screws in embodiment 2 of the present utility model.

Detailed Description

The utility model is described in further detail below with reference to the embodiments of the drawings.

In the description and claims of the present utility model, terms indicating directions, such as "front", "rear", "upper", "lower", "left", "right", "side", "top", "bottom", etc., are used to describe various example structural parts and elements of the present utility model, but these terms are used herein for convenience of description only and are determined based on the example orientations shown in the drawings. Because the disclosed embodiments of the utility model may be arranged in a variety of orientations, the directional terminology is used for purposes of illustration and is in no way limiting, such as "upper" and "lower" are not necessarily limited to being in a direction opposite or coincident with the direction of gravity.

Example 1

Referring to fig. 1-11, a garbage disposer includes a housing 71, a feed hopper 72, a grinding and wringing device 73, a fermentation device 74, and a cover plate 75 disposed on the housing 71. The feeding hopper 72 is arranged above the crushing and squeezing device 73, and the top of the feeding hopper is open for a user to directly throw materials. The cover plate 75 is provided on the top of the body 71 to be moved left and right, thereby opening or closing the top opening of the feed hopper 72. The bottom of the feed hopper 72 is connected with the feed inlet 13 of the crushing and wringing device 73. The crushing and squeezing device 73 can be used for crushing and dewatering garbage materials. The fermentation device 74 is arranged downstream of the crushing and squeezing device 73 and is used for fermenting the crushed and dehydrated garbage material. The specific structure and operation of the fermentation device 74 are all of the prior art, and are not described herein.

Referring to fig. 1-5, the pulverizing and wringing device 73 includes a housing 10, a screw assembly 20, a grinding drum 40, and a motor 60.

The case 10 of the present embodiment has a rectangular case structure, and both ends in the longitudinal direction thereof are fixed by the standing plates 11 and the discharge plates 32 which are arranged in opposition. The inner cavity of the case 10 is the working chamber 12 for accommodating the screw assembly 20 and the grinding cylinder 40. The grinding cylinder 40 is also elongated and extends along the longitudinal direction of the housing 10. The bin 10 is provided with a feed opening 13 at one end adjacent its length, the feed opening 13 opening on top of the bin 10, whereby the waste material in the hopper 72 is fed down into the bin 10. Correspondingly, the grinding cylinder 40 also has a notched portion opposite to the feed port 13 on the top wall of the end portion adjacent to the feed port 13 of the housing 10 for convenience of feeding. The other end of the box 10 in the length direction is provided with a discharge port for discharging the processed garbage material out of the working chamber 12.

The screw assembly 20 is disposed within the working chamber 12, and in particular within the grinding drum 40 described above. The screw assembly 20 comprises two screws arranged side by side and rotatable about respective axes, which may be denoted as first screw 20a and second screw 20b, respectively. The rotation directions of the first screw 20a and the second screw 20b are opposite. Both screws extend from the position of the feed inlet 13 of the box body 10 to the position of the discharge outlet. The two axial ends of the two screws are rotatably supported by the above-mentioned vertical plate 11 and the discharge plate 32, respectively. In order to adapt to the shapes of the two screws, the cross section of the grinding cylinder 40 of the embodiment is approximately 8-shaped, so that the screws can be fully contacted with garbage materials in all areas in the rotating process, and the crushing and extrusion effects are ensured.

As shown in fig. 8, the screw assembly 20 of the present embodiment is divided into a pulverizing section 201 and a wringing section 202 in order along the material flow direction in the working chamber 12. And each screw has at least two pulverizing blades 21 each spirally arranged in the axial direction of the corresponding screw at a portion corresponding to the pulverizing section 201, and the respective pulverizing blades 21 on each screw are arranged at intervals in the circumferential direction of the corresponding screw. Specifically, three pulverizing blades 21 are provided on each screw in the present embodiment, and the three pulverizing blades 21 are uniformly arranged at 120 ° about the axis of the screw, thereby forming a "three-wire knife structure". The screw pitches of the pulverizing blades 21 in the axial direction of the present embodiment are uniform, and the screw pitches of the pulverizing blades 21 are relatively large (relative to the screw pitches of the extruding blades 22 on the screw), and the specific screw pitches may be determined as required, wherein the preferable range of values is 100mm to 600mm.

During rotation, the crushing blades 21 on the first screw 20a can just extend into the gap between the two crushing blades 21 of the second screw 20b, so that the crushing blades 21 on the two screws can engage with each other, thereby transporting the waste material forward.

Each pulverizing blade 21 on the screw of the present embodiment has a blade root 211 that meets the corresponding screw and a blade outer edge 212 that is distant from the blade root 211, wherein the blade outer edge 212 of the pulverizing blade 21 has a tooth 2120 that protrudes outward in the radial direction. The teeth 2120 on the two screws can be meshed in a staggered manner in the process of rotating along with the screws, so that when a large volume of kitchen waste meets the teeth 2120, the kitchen waste becomes smaller after being torn. In addition, since the pulverizing blade 21 is in a spiral state, the movement track of the convex teeth 2120 is circular in the rotation process along with the screw, correspondingly, the convex teeth 2120 are in sharp inclined tooth states in the rotation process along with the pulverizing blade 21, so that the convex teeth 2120 can have good cutting and pulling effects on garbage during the rotation operation, and the garbage is disturbed or bitten to realize feeding.

As shown in fig. 1 and 6, a side blade 31 is provided at a distal end position of the top wall of the working chamber 12 adjacent to the pulverizing section 201, the side blade 31 is provided at a notched portion of the grinding drum 40, and the side blade 31 is elongated as a whole and extends in a direction substantially perpendicular to the axial direction of the screw. In particular, the blade portion of the side blade 31 has two notch structures arranged in series in order to be adapted to the crushing blades 21 of the two screws to form an effective shearing fit. The side cutters 31 are vertically arranged above the two screws, and an included angle structure can be formed after the side cutters 31 are encountered when the garbage is conveyed, so that the garbage can be forcedly sheared between the side cutters 31 and the crushing blades 21, and the crushing effect is ensured.

Each screw has, at a portion corresponding to the wringing section 202, a screw-arranged extrusion blade 22 in the axial direction of the corresponding screw, and specifically, the extrusion blade 22 on each screw of the present embodiment is one blade extending continuously along the main body of the screw, that is, a single-wire blade. The extrusion blades 22 of the first screw 20a correspondingly extend into gaps defined between adjacent parts of the extrusion blades 22 of the second screw 20b, so that in the process of relative rotation of the two screws, the extrusion blades 22 on the two screws are matched with each other to extrude and dewater the garbage materials, and the garbage materials are conveyed towards the position of the discharge hole.

With continued reference to fig. 8, the pitch of the extrusion blades 22 on each screw is gradually reduced in the conveying direction of the material in the working chamber 12, wherein the pitch of the crushing blades 21 on each screw in this embodiment is greater than the maximum pitch of the extrusion blades 22 on that screw. Specifically, the maximum pitch of the extrusion blades 22 on each screw has a range of values: the minimum pitch range of 50 mm-200 mm is: 10 mm-50 mm.

The large pitch design of the extrusion blade 22 at the front end can realize quick feeding, and the extrusion blade can be matched with the feeding of the front crushing blade 21 (also with large pitch), so that residues in the garbage material conveying process are reduced, and the garbage material sent out by the crushing section 201 can be extruded by the extrusion blade of the downstream extrusion section 202 in the quick conveying process. When the waste materials are conveyed to a small pitch area at the rear end of the screw, the waste materials can be squeezed to ideal requirements.

Referring to fig. 2 and 4, the working chamber 12 is provided with a discharge plate 32 at a terminal position adjacent to the feeding direction thereof, and discharge holes 320 are distributed on the discharge plate 32 at a portion corresponding to the terminal positions of the two screws, and each discharge hole 320 on the discharge plate 32 forms a discharge port of the crushing and wringing device 73 of the present embodiment. The end position of each screw is provided with an end blade 23, which end blade 23 is connected to the extrusion blade 22 on the body of the screw, specifically, the end blade 23 extends in the radial direction of the screw at the end of the screw and protrudes toward the discharge plate 32 in the axial direction to be in contact with the inner wall of the discharge plate 32 (the region where the discharge hole 320 is opened), so that the end blade 23 on the screw can form a shearing fit with the inner wall of the discharge plate 32 during the rotation of the screw.

In the operation process of the crushing and squeezing device 73 of this embodiment, the garbage material moves to the end position under the drive of the screw assembly 20 and rotates along with the end surface cutter 23, when the garbage material reaches a certain amount, the garbage material enters the discharge hole 320 of the discharge plate 32 under the action of the extrusion force, and since the discharge plate 32 is in a static state, and one side surface of the end surface cutter 23 contacts with the discharge plate 32, the end surface cutter 23 rotates relative to the discharge plate 32 in the rotation process to grind and cut the garbage, so that the last grinding and cutting and extrusion of the garbage entering the discharge hole can be realized, and the crushing effect of the garbage material is improved. In addition, in order to facilitate the garbage discharge after crushing and squeezing, the garbage is prevented from being blocked at the discharge hole 320, and each discharge hole 320 on the discharge plate 32 is a horn hole with a caliber gradually increasing along the discharge direction.

The grinding cylinder 40 of the present embodiment includes an upper cylinder 41 and a lower cylinder 42, wherein the upper cylinder 41 and the lower cylinder 42 have two semi-cylindrical recesses, and the upper cylinder 41 and the lower cylinder 42 can be screwed or directly welded together after being combined. The lower cylinder 42 is located below the screw assembly 20, water leakage holes 420 are distributed on the lower cylinder 42, and water can flow downwards through the water leakage holes 420 in the extrusion process, so that the timely separation of the water and garbage materials is realized. The upper cylinder 41 is located above the screw assembly 20 and has a cylinder structure without water leakage holes as a whole. The upper cylinder 41 without the water leakage hole can prevent water and part of small garbage generated during the operation of the screw assembly 20 from flowing out from the upper part, thereby avoiding the problems of odor and difficult cleaning after staying at the upper part after the garbage flows out. On the other hand, the upper cylinder 41 also has the function of fixing the lower cylinder 42, ensuring the strength and stability of the whole grinding cylinder 40. The length of the upper cylinder 41 is smaller than that of the lower cylinder 42, and the edge of the upper cylinder 41 adjacent to the discharge hole is basically flush with the edge of the lower cylinder 42 adjacent to the discharge hole, so that after the upper cylinder 41 and the lower cylinder 42 are buckled together, the part of the upper cylinder 41, which is shortened at the other end relative to the lower cylinder 42, forms a notch part of the grinding cylinder 40 opposite to the feed inlet 13.

In a preferred embodiment, the aperture of the water leakage hole 420 of the lower cylinder 42 corresponding to the crushing section 201 is larger than the aperture of the water leakage hole 420 of the lower cylinder 42 corresponding to the wringing section 202, specifically, the portion of the lower cylinder 42 corresponding to the crushing section 201 is denoted as a large hole area 421, the portion of the lower cylinder 42 corresponding to the wringing section is denoted as a small hole area 422, and the value ranges of the apertures of the water leakage holes 420 of the large hole area 421 and the aperture of the water leakage hole 420 of the small hole area 422 are set as required. And the lower cylinder 42 is not provided with a water leakage hole 420 at a portion adjacent to the discharge port, which can be referred to as a closed area 423, wherein the size of the closed area 423 in the axial direction ranges from 5mm to 80mm.

Since the area corresponding to the crushing section 201 is the area adjacent to the feed inlet 13, the water leakage hole 420 has a slightly larger aperture, so that most of the water in the garbage can be discharged fastest, and at this time, the garbage has a relatively large volume and is not easy to be discharged through the water leakage hole 420. When the garbage material enters the wringing section 202 of the screw assembly 20, the aperture of the water leakage hole 420 is slightly smaller, and when the pressure ratio of the garbage entering the single-wire knife is larger, the corresponding aperture of the water leakage hole 420 is reduced, so that partial fine garbage can be prevented from being discharged. When the garbage enters the tail garbage discharge hole, the grinding cylinder 40 is designed to be a hole-free area because the extrusion pressure of the garbage in the area is the largest, so that the fine garbage can be prevented from being extruded out of the water leakage hole 420, and the garbage materials can be smoothly discharged through the discharge hole after being pressurized.

In order to clean the inner walls of the grinding cylinder 40 and the box 10, the inner wall of the box 10 is further provided with a flushing nozzle 51, the flushing nozzle 51 can be connected with a water flow electromagnetic valve, the flushing nozzle 51 can be specifically arranged below the tail end of the grinding cylinder 40, and the spraying direction of the flushing nozzle 51 faces the position of the feeding hole 13, so that the outside of the grinding cylinder 40 and the inner wall of the box 10 can be flushed in a large range.

In order to drive the screw assembly 20 to rotate, a motor 60 is further arranged on one side of the box body 10, a first belt pulley 61 is arranged on an output shaft of the motor 60, a second belt pulley 62 is also arranged on one of the two screws, and transmission is realized between the first belt pulley 61 and the second belt pulley 62 through a conveyor belt. At the same time, the two screws are also driven by the gear assembly 63. That is, when the motor 60 rotates one of the screws via the pulley, the other screw is rotated via the gear assembly 63. Specifically, the vertical plate 11 for supporting the end of the screw has a portion extending to the side, the motor 60 is fixed to the extending portion of the vertical plate 11, the output shaft of the motor 60 is provided with the first pulley 61 outside the extending portion of the vertical plate 11, and correspondingly, two screws are provided with the second pulley 62 and the gear assembly 63 outside the vertical plate 11.

The screw assembly 20 of this embodiment is sequentially divided into a pulverizing section 201 and a wringing section 202 along the extending direction thereof, so that the purposes of rapidly pulverizing and continuously separating the garbage from the water can be achieved in the process of treating the garbage material. Wherein, two screw rods are the coupled state when rotatory, and the crushing blade 21 of the anterior segment of screw rod can a large amount of bites into rubbish material under the state of mutual coupling, provides fine help for rubbish feeding, also can refine in the twinkling of an eye with bulky rubbish through the interlock simultaneously, also can carry rubbish material along axial forward when refining smashing, has realized fully smashing to rubbish material. On the other hand, since the crushing blades 21 for crushing the garbage materials and the wringing blades for wringing and dehydrating are sequentially arranged along the axial direction of the screw rods, only one driving mechanism is needed to drive the two screw rods to rotate, so that the number of the driving mechanisms is reduced, the garbage disposer is more compact and small in size, and the occupied area is reduced.

Example 2

Referring to fig. 12-14, another preferred embodiment of the present utility model is shown, which differs from embodiment 1 in that: the screw assembly 20 includes a shear section 203 in addition to the pulverizing section 201 and the wringing section 202 of example 1. Specifically, in the axial direction of the screw assembly 20, the shear section 203 is located between the pulverizing section 201 and the wringing section 202. Each screw is provided with a plurality of shearing teeth protruding outward in the radial direction of the screw and sequentially arranged in the circumferential direction of the screw at a portion corresponding to the shearing section 203, wherein a group of shearing teeth sequentially arranged in the circumferential direction on each screw is denoted as one shearing tooth group, and as shown in fig. 12, each screw is provided with two shearing tooth groups denoted as a first shearing tooth group and a second shearing tooth group, that is, a first shearing tooth group 241 and a second shearing tooth group 242 on the first screw 20a, and a first shearing tooth group 251 and a second shearing tooth group 252 on the second screw 20b, respectively. Each first set of cutting teeth is disposed adjacent to the pulverizing section 201 of the screw assembly 20 and each second set of cutting teeth is disposed remote from the pulverizing section 201 of the screw assembly 20. In order to realize effective shearing of the garbage materials, the first shearing teeth 241 and the second shearing teeth 242 on the first screw 20a and the first shearing teeth 251 and the second shearing teeth 252 on the second screw 20b are sequentially arranged at intervals along the axial direction of the screw assembly 20, so that the shearing teeth on the two screws can form effective shearing fit in the process of rotating along with the corresponding screws.

In a further preferred embodiment, the cutting teeth of the first cutting tooth set and the cutting teeth of the second cutting tooth set of each screw are arranged in sequence in the axial direction of the screw in a direction substantially coincident with the helical inclination direction of the pulverizing blade 21 on the screw. Specifically, the cutting teeth in the first cutting teeth set on each screw are denoted as first cutting teeth, namely first cutting teeth 2410 in first cutting teeth set 241 on first screw 20a, first cutting teeth 2510 in first cutting teeth set 251 on second screw 20b, second cutting teeth set 242 on each screw; the cutting teeth in 252 are denoted as second cutting teeth, i.e. first cutting teeth 2420 of the second set of cutting teeth 242 on the first screw 20a, first cutting teeth 2520 of the second set of cutting teeth 252 on the second screw 20b. Wherein, for each screw, the first shearing teeth and the second shearing teeth are offset from each other in the axial direction of the screw, and the inclination direction (M direction shown in fig. 14) and inclination angle of the connecting line between the two relative to the axis of the screw are substantially the same as the inclination direction and inclination angle of the pulverizing blade 21 on the screw relative to the axis of the screw. By means of the structural design, each shearing tooth group on the screw rod also has a certain function of rotating and pushing garbage, and residues of garbage materials in the shearing teeth can be avoided.

Claims (13)

1. A crushing and wringing device for a kitchen waste processor, comprising:

the box body (10) is provided with a working chamber (12), a feed inlet (13) for the garbage material to be treated to enter the working chamber (12) and a discharge outlet for the treated garbage material to be discharged out of the working chamber (12);

the screw rod assembly (20) is arranged in the working chamber (12) and comprises two screw rods (20 a;20 b) which are arranged side by side and can rotate around respective axes, and the two screw rods (20 a;20 b) extend from the position of the feed inlet (13) of the box body (10) to the position of the discharge outlet;

the method is characterized in that: the screw assembly (20) is sequentially divided into a crushing section (201) and a squeezing section (202) along the material flowing direction in the working chamber (12), at least two crushing blades (21) which are spirally arranged along the axial direction of the corresponding screw are arranged on the part corresponding to the crushing section (201) on each screw (20 a;20 b), the crushing blades (21) on each screw are circumferentially arranged at intervals along the corresponding screw, the crushing blades (21) on the two screws (20 a;20 b) are mutually meshed and convey garbage materials towards the squeezing section, the squeezing blades (22) which are spirally arranged along the axial direction of the corresponding screw are arranged on the part corresponding to the squeezing section (202) on each screw, and the squeezing blades (22) on the two screws (20 a;20 b) are mutually matched to squeeze and dehydrate the garbage materials and convey the garbage materials towards the position of the discharge port.

2. The crushing and wringing device for kitchen waste disposer of claim 1, wherein: the crushing blades (21) on the two screws (20 a;20 b) are three, and the three crushing blades (21) on each screw are uniformly arranged along the circumferential direction of the corresponding screw.

3. The crushing and wringing device for kitchen waste disposer of claim 1, wherein: the pitch of the crushing blades (21) on each screw is equal, the pitch of the extruding blades (22) on each screw is gradually reduced along the conveying direction of the materials in the working chamber (12), and the pitch of the crushing blades (21) on each screw is larger than the maximum pitch of the extruding blades (22) on the screw.

4. The crushing and wringing device for kitchen waste disposer of claim 1, wherein: a side cutter (31) which extends in a direction substantially perpendicular to the axial direction of the screw shafts and is used for forming a shearing fit with the crushing blades (21) on the two screw shafts is arranged on the top wall of the working chamber (12) at a position adjacent to the tail end of the crushing section (201).

5. The crushing and wringing device for kitchen waste disposer of claim 1, wherein: the crushing blades (21) on each screw are provided with blade roots (211) connected with the screw and blade outer edges (212) far away from the blade roots (211), the blade outer edges (212) of the crushing blades (21) are provided with convex teeth (2120) protruding outwards, and the convex teeth (2120) on the two screws (20 a;20 b) form shearing fit in the process of rotating along with the screws (20 a;20 b).

6. The crushing and wringing device for kitchen waste disposer of any one of claims 1 to 5, wherein: the working chamber (12) is provided with a discharge plate (32) at the end position adjacent to the feeding direction of the working chamber, the discharge plate (32) is basically vertical to the axial direction of the two screws (20 a;20 b), the discharge plate (32) is provided with discharge holes (320) at the parts corresponding to the end positions of the two screws (20 a;20 b), and the discharge holes (320) on the discharge plate (32) form the discharge hole together.

7. The crushing and wringing device for kitchen waste disposer of claim 6, wherein: the extrusion blades (22) on each screw have, on the portion opposite to the discharge plate (32), end-face blades (23) which project toward the discharge plate (32) and can form a shearing fit with the inner side walls of the discharge plate (32).

8. The crushing and wringing device for kitchen waste disposer of claim 7, wherein: each discharge hole (320) on the discharge plate (32) is a horn hole with caliber gradually increasing along the discharge direction.

9. The crushing and wringing device for kitchen waste disposer of any one of claims 1 to 5, wherein: the working chamber (12) is internally provided with a grinding cylinder (40) sleeved outside the screw assembly (20), the grinding cylinder (40) is formed by combining an upper cylinder body (41) and a lower cylinder body (42), and the lower cylinder body (42) is positioned below the screw assembly (20) and is provided with water leakage holes (420).

10. The crushing and wringing device for kitchen waste disposer of claim 9, wherein: the aperture of the water leakage hole (420) on the lower cylinder (42) corresponding to the crushing section (201) is larger than that of the water leakage hole (420) on the lower cylinder (42) corresponding to the squeezing section (202), the part of the lower cylinder (42) adjacent to the discharge hole is a closed area (423) without the water leakage hole (420), and the size range of the closed area (423) in the axial direction is 5-80 mm.

11. The crushing and wringing device for kitchen waste disposer of any one of claims 1 to 5, wherein: the screw assembly (20) further comprises a shearing section (203) positioned between the crushing section (201) and the wringing section (202), wherein a part of each screw (20 a;20 b) corresponding to the shearing section (203) is provided with a plurality of shearing teeth which protrude outwards along the radial direction of the screw (20 a;20 b) and are distributed along the circumferential direction of the screw (20 a;20 b) in sequence, and the shearing teeth on two screws (20 a;20 b) form shearing fit in the rotation process of the corresponding screws (20 a;20 b).

12. The crushing and wringing device for kitchen waste disposer of claim 11, wherein: a group of shearing teeth arranged in turn in the circumferential direction on each screw (20 a;20 b) is denoted as a shearing tooth group (241; 242;251; 252), each screw (20 a;20 b) is provided with at least two shearing tooth groups (241; 242;251; 252) in turn in the axial direction thereof, and adjacent two shearing tooth groups (241; 242;251; 252) on each screw (20 a;20 b) are denoted as a first shearing tooth group (241; 251) and a second shearing tooth group (242; 252), respectively, each shearing tooth in the first shearing tooth group (241; 251) and each shearing tooth in the second shearing tooth group (242; 252) being arranged in turn in the axial direction on the screw (20 a;20 b) in a direction substantially coinciding with the helical inclination direction of the pulverizing blade (21) on the screw (20 a;20 b).

13. The crushing and wringing device for kitchen waste disposer of claim 12, wherein: each set of cutting teeth (241; 242;251; 252) on one (20 a;20 b) of the two screws (20 a;20 b) is spaced apart from each set of cutting teeth (241; 242;251; 252) on the other screw (20 a;20 b) in sequence along the axial direction of the screw assembly (20).