CN112168018A

CN112168018A - Safe and reliable food processor

Info

Publication number: CN112168018A
Application number: CN201910614403.8A
Authority: CN
Inventors: 王旭宁; 师嘉蓬
Original assignee: Joyoung Co Ltd
Current assignee: Joyoung Co Ltd
Priority date: 2019-07-09
Filing date: 2019-07-09
Publication date: 2021-01-05
Anticipated expiration: 2039-07-09
Also published as: CN112168018B

Abstract

The invention discloses a safe and reliable food processing machine, which comprises a machine base, a working cavity and a screw rod, wherein the machine base is internally provided with a motor, the screw rod is arranged in the working cavity, one end of the working cavity is provided with an installation port provided with an end cover, the other end of the working cavity is provided with a connecting end connected with the machine base, the screw rod comprises a screw rod body with a spiral surface and a screw rod shaft arranged in the screw rod body, the screw rod shaft extends out of the connecting end and is in transmission connection with a motor shaft, the working cavity is provided with a discharge hole, a radial working gap a is formed between the spiral top surface of the screw rod and the inner surface of the

The invention can ensure the safety of users and avoid finger injury caused by misoperation on the premise of ensuring smooth discharging.

Description

Safe and reliable food processor

Technical Field

The invention belongs to the technical field of food processing machines, and particularly relates to a safe and reliable food processing machine.

Background

With the improvement of living standard, various food processing machines suitable for home use, such as juice extractors, noodle makers, etc., are emerging. The existing food processor usually comprises a base, a motor is arranged in the base, a working cavity is arranged on the base, a screw rod for extrusion is arranged in the working cavity, and a discharge hole is formed in the working cavity.

During operation, throw into the work intracavity with the material earlier, then the starter motor, the motor drives the screw rod and rotates to the material extrudees, or squeezes out fruit juice, or forms noodless etc. then fruit juice or noodless are exported outwards through the discharge gate.

In order to improve the safety of the food processor during use, people usually limit the size of the discharge port, so that when the materials are smoothly output, the fingers of a user are prevented from entering the working cavity through the discharge port, and the fingers of the user are prevented from being damaged by the rotating screw.

However, the existing horizontal juicer still has the following defects in the aspect of safety: when considering the size of the discharge hole, the fingers of a user are only prevented from completely entering the working cavity through the discharge hole. However, the end of the finger is generally semicircular, so that even if the finger cannot completely extend into the working cavity through the discharge hole, the semicircular end of the finger still can partially enter the working cavity, and the rotating screw can cause injury to the end of the finger.

Disclosure of Invention

The invention aims to provide a safe and reliable food processor, which can ensure the safety of a user and avoid finger injury caused by misoperation on the premise of ensuring smooth discharging.

In order to achieve the purpose, the invention adopts the following technical scheme:

the utility model provides a safe and reliable's food preparation machine, includes that inside has frame, working chamber, the screw rod of setting in the working chamber of motor, and working chamber one end is for the installing port that is equipped with the end cover, and the other end is the link of being connected with the frame, and the screw rod has the screw rod body of spiral, sets up the screw rod axle in the screw rod body including the surface, and the screw rod axle stretches out the link and is connected with the motor shaft transmission, is equipped with the discharge gate on the working chamber, form radial working gap a between the spiral top surface of screw rod and the discharge gate internal surface, the effective width of discharge gate or the less valueAnd is and

it should be noted that, when a user, especially a child, tries to put fingers into the discharge hole due to misoperation or the like, the discharge hole with a small effective size can prevent the fingers from entering the working cavity, the fingers are clamped in the discharge hole at the moment, but the end part of the approximately semicircular fingers still partially enters the discharge hole. Therefore, the invention effectively avoids the finger end of the finger from being extruded and scratched by the spiral of the rotating screw rod by controlling the working clearance a formed between the spiral top surface of the screw rod and the inner surface of the discharge hole.

In particular, the invention provides the following relationship between the working gap a and the smaller value b:

when avoiding the finger directly to stretch into working chamber, screw rod through the discharge gate can not cause the injury to the finger end of card finger at the discharge gate, minimize the size of working gap to ensure the screw rod to the extrusion effect of material, and make the discharge gate can satisfy the output requirement of processing back material. When in use

During the process, the spiral of the rotating screw rod is easy to extrude and scrape the end part of the finger clamped at the discharge hole, thereby causing personal injury accidents.

Preferably, the effective width and the effective length of the discharge hole are both smaller than 8.5 mm.

It will be appreciated that the cross-section of the finger is not perfectly circular, it is closer to an oval. Consequently when the effective size of discharge gate on length, two directions of width all is less than 8.5mm, can ensure that user's finger all can't get into the work intracavity through the discharge gate in arbitrary direction, especially, can avoid the tip of finger to be pushed down the back and go into the work intracavity by force, promote the security effectively.

Preferably, the screw rod is transversely arranged in the working cavity, one end, close to the mounting hole of the working cavity, of the screw rod body is provided with a baffle, the radial clearance between the baffle and the working cavity is c, and c is less than 8.5 mm.

When the material moves in the working cavity under the pushing of the screw rod, the baffle can effectively prevent the material from forming reverse extrusion on the end cover of the mounting opening, so that the end cover is damaged.

Particularly, the invention can effectively prevent fingers of a user from entering the working cavity through the radial clearance c between the baffle plate and the working cavity by reasonably controlling the radial clearance c between the baffle plate and the working cavity. It should be noted that, due to the reason of misoperation or forgetting of a user, the screw rod may rotate when the motor is started without the upper end cover at the mounting port, and the radial clearance c between the baffle plate and the working cavity is well controlled by the invention, so that fingers cannot be inserted into the working cavity through the radial clearance c between the baffle plate and the working cavity when the motor is used, and the smooth and round baffle plate can avoid the damage to the fingers of the user, thereby effectively improving the safety performance.

Preferably, the screw rod is transversely arranged in the working cavity, one end, close to the mounting opening of the working cavity, of the screw rod body is provided with a baffle, the inner side wall of the working cavity is provided with a grinding bulge, the radial gap between the baffle and the working cavity is g, the distance between the end face of the baffle and the grinding bulge is f, g is more than or equal to 8.5mm and less than 12mm, and f is more than 57.75 mm.

In this scheme, the inside wall setting of working chamber grinds the arch to be favorable to carrying out more effectual grinding to the material, block simultaneously through grinding the arch that the people's hand stretches into album juice intracavity portion, especially prevent that the finger from stretching into the less place in clearance, the finger is forced to enter into the space between the spiral, fully avoids the possibility of being drawn into by the spiral of screw rod. It will be appreciated that the radial clearance g of the shield from the working chamber is then correspondingly increased to avoid interference of the helix with the grinding lobe. Through the radial clearance g of rationally controlling baffle and working chamber, both can avoid user's finger to get into the working chamber through radial clearance as far as possible, can form effectual blockking to the material in the working chamber again, avoid the material to form the extrusion to the end cover of installing port. When g is less than 8.5mm, the screw rod is difficult to install in the working cavity; when g > 12mm, the user's fingers can enter the working chamber without restriction, thereby affecting safety performance.

It should be noted that when 8.5mm g < 12mm, the thin fingers of an individual user, especially a child, may still extend through the radial gap into the working chamber and be easily entangled in the helix of the screw. According to the invention, the distance f between the end face of the baffle plate and the grinding bulge is reasonably controlled, so that fingers extending into the working cavity can be prevented from being extruded with the grinding bulge on the inner side wall of the working cavity to be injured.

Preferably, the working cavity is a transversely arranged juice collecting cavity, a vertical feeding channel is arranged on the upper side of the working cavity, the effective inner diameter of the feeding channel is d, and d is less than or equal to 38 mm.

By reasonably controlling the effective inner diameter of the feeding channel, on one hand, the hands of individual users, especially children, can be prevented from being injured by extending into the working cavity through the feeding channel, and the safety performance is further improved; on the other hand, the feeding channel is favorable for feeding materials into the working cavity, and the food processor is convenient to operate and use.

Preferably, the feed channel opens to the top face of the helix at a distance h, and h > 80 mm.

It will be appreciated that any user may extend his or her finger completely into the feed channel. According to the invention, by reasonably controlling the distance h from the opening of the feeding channel to the top surface of the spiral, the fingers entering the feeding channel can be prevented from contacting the screw rod, and further the fingers can be prevented from being damaged by the rotating screw rod. That is to say, on the premise of ensuring that the material can be normally delivered by the feed channel, the feed channel is effectively prevented from becoming a potential safety hazard.

Preferably, the working cavity is a longitudinally-arranged juice collecting cavity, the end cover is an upper cover arranged at an opening at the upper part of the working cavity, a vertical feeding channel is arranged on the upper cover, the effective inner diameter of the feeding channel is d, and d is less than or equal to 38 mm.

In this scheme, when the working chamber is the juice collecting cavity that vertically sets up, correspondingly, food preparation machine is the juice extractor. A corresponding upper cover can be arranged at an opening at the upper part of the working cavity, and a feeding channel is arranged on the upper cover, so that the materials can be delivered conveniently. Through reasonably controlling the effective inner diameter d of the feeding channel at the moment, the fruit and vegetable materials are conveniently thrown into the juice collecting cavity through the feeding channel, and the hands of a user can be effectively prevented from extending into the juice collecting cavity through the feeding channel and being injured by the rotating screw rod.

Preferably, the screw is arranged vertically in the working chamber, the distance from the opening of the feed channel to the upper end of the screw is H, and H is more than 80 mm.

In this solution, the screw is arranged vertically in the working chamber, thus constituting a food processor such as a vertical juicer. Through rationally controlling the distance h from the feed channel opening to the upper end of the spiral, the fingers entering the feed channel can be prevented from contacting the upper end of the spiral, and then the fingers are prevented from being damaged by the rotary spiral shearing.

Preferably, one end of the screw rod, which is close to the mounting port of the working cavity, is a crushing section, the other end of the screw rod is a grinding section, the discharge port is arranged on the lower side of the working cavity, the discharge port comprises at least one juice outlet hole which is close to one side of the crushing section and a plurality of filtering holes which are close to one side of the grinding section, and the effective width and the effective length of the juice outlet hole are both smaller than 8.5 mm.

In this embodiment, one end of the screw is a crushing section and the other end is a grinding section, thereby forming a horizontal juicer from the food processor. Correspondingly, the discharge hole comprises a juice outlet hole for outputting juice and a filtering hole for filtering pomace in juice.

When the material is thrown into the working chamber, the material is sheared and crushed by the screw of the crushing section, and the material moves towards one side of the grinding section, so that juice is produced after the material is extruded. The squeezed juice flows back along the inner side wall of the lower part of the working chamber towards one side of the crushing section. When the juice flows to the filtering hole close to one side of the grinding section, the pomace mixed in the juice is blocked and filtered, partial juice of the filtered pomace flows out through the filtering hole, and the rest pure juice which does not flow out in time continues to flow forward and flows out through the juice outlet hole.

That is, the discharge hole of the present invention comprises a filtering hole for filtering the juice and a juice outlet hole for allowing the juice to flow out rapidly, so as to increase the juice speed and efficiency. It can be understood that we can suitably reduce the aperture size of the filtering hole and suitably increase the aperture size of the juice outlet hole, so that the aperture of the juice outlet hole is larger than that of the filtering hole, thereby ensuring the filtering effect and ensuring the juice to flow out rapidly.

Preferably, the juice outlet hole and the filtering hole are rectangular holes arranged side by side along the circumferential direction, the circumferential dimension of the filtering hole forms the width, and the axial dimension forms the length.

Because the juice outlet hole and the filtering hole are rectangular holes which are arranged side by side along the circumferential direction, the processing and the manufacturing of a forming die for forming the working cavity are convenient. In addition, the circumferential dimension of the filter aperture forms a width and the axial dimension forms a length. Therefore, the filtering holes can be made into a long strip-shaped gap shape, and the area of the filtering holes is increased as much as possible on the premise of ensuring the filtering effect, so that the juice outlet speed and the juice outlet quantity are increased. In particular, the filtering holes are elongated and extend in the axial direction of the working chamber, so that when the juice flows in the axial direction in the working chamber, it can be brought into sufficient contact with the filtering holes, thus facilitating the outward flow of the juice.

Therefore, the invention has the following beneficial effects: on the premise of ensuring smooth discharging, the safety of a user can be ensured, and finger injury caused by misoperation is avoided.

Drawings

FIG. 1 is a schematic diagram of an embodiment of the present invention.

Fig. 2 is a partial structure view of the discharge port in fig. 1.

Fig. 3 is a vertical longitudinal sectional view of the screw and juice collection chamber of fig. 1.

Fig. 4 is a schematic structural view of the discharge hole in fig. 1.

Fig. 5 is a horizontal longitudinal sectional view of the screw and juice collection chamber of fig. 1.

Fig. 6 is another schematic structure of the present invention.

In the figure: 1. the device comprises a base 11, a motor 2, a working cavity 21, a connecting end 22, a mounting port 23, an end cover 24, a discharging port 241, a juice outlet 242, a filtering hole 25, a grinding bulge 26, a feeding channel 3, a screw 31, a screw body 32, a screw shaft 33, a crushing section 34, a grinding section 35 and a circular baffle.

Detailed Description

The invention is further described with reference to the following detailed description and accompanying drawings.

As shown in fig. 1 and 2, a safe and reliable food processor comprises a base 1 with a motor 11 inside, a working chamber 2 and a screw rod 3 arranged in the working chamber, wherein one end of the working chamber is a connecting end 21 connected with the base, and the other end of the working chamber is a mounting opening 22 provided with an end cover 23, so that the screw rod can be mounted in the working chamber through the mounting opening. The screw comprises a screw body 31 with a spiral on the surface, and a metal screw shaft 32 arranged in the screw body, wherein the extending connection end of the screw shaft is in transmission connection with a motor shaft so as to enable the motor to drive the screw to rotate. In addition, a discharge port 24 for outputting the processed material is arranged on the working cavity.

During operation, the motor drives the screw rod to rotate so as to extrude and other processes on the materials which are fed with strong work, and the materials move towards the discharge hole, and the processed materials are finally output outwards through the discharge hole, so that food processing is completed.

Firstly, the invention ensures that the smaller value b of the effective width or the effective length of the discharge hole is less than 8.5mm, thereby effectively preventing the fingers of users, particularly children, from extending into the discharge hole and preventing the fingers from being extruded and injured by the rotating screw rod. When the smaller value b is more than or equal to 8.5mm, the fingers of a user, especially a child, easily enter the working cavity through the discharge hole, so that potential safety hazards are caused.

It will be appreciated that when two or more ports are provided on the food processor, it is desirable to ensure that the lesser of the effective width or effective length b of each port is less than 8.5 mm. Furthermore, when the spout is not a standard rectangle, that is, the edge of the spout is not straight, the effective length thereof refers to a dimension between two opposite sides in the length direction that allows fingers to pass therethrough, and the effective width refers to a dimension between two opposite sides in the width direction that allows fingers to pass therethrough. In addition, the fingers can be regarded as cylindrical shapes, so that when the smaller value b of the effective width or the effective length of the discharge port is smaller than 8.5mm, even if the other larger value is larger than 8.5mm, the fingers can still be prevented from extending into the working cavity through the discharge port, the control condition is simplified, and the shape of the discharge port has more free design space.

In order to effectively improve the safety of the product, the smaller value b of the effective width or the effective length of the discharge hole can be controlled in the following range: b is less than 8.5mm, thereby effectively preventing fingers of users, particularly children, from extending into the discharge hole due to misoperation and preventing the fingers from being scraped and extruded by the spiral of the rotating screw rod.

It will be appreciated that the human finger is generally cylindrical and the ends of the finger are generally semi-circular. Therefore, when the fingers of the user are stuck in the discharge port, the end parts of the fingers in the approximately semicircular shape still partially enter the discharge port, and the rotating screw rod still has the possibility of causing injury to the fingers. In addition, the larger the diameter of the finger is and the larger the radius of the end part is, the smaller the length of the finger end part clamped on the discharge hole entering the discharge hole is. When the diameter of the finger is 8.5mm and b is the maximum value, the length of the end part of the finger entering the discharge hole is the maximum. Therefore, the invention controls the working clearance a formed between the spiral top surface of the screw and the inner surface of the discharge hole in the following range:

can avoid user, children's finger even directly to stretch into the work intracavity through the discharge gate to the screw rod can not lead to the fact the injury to the finger end that the card indicates at the discharge gate, is favorable to reducing the size of working gap simultaneously, thereby ensures the screw rod to the operation effects such as the extrusion of material, and the effective size of discharge gate then can get the great value as far as possible, in order to satisfy the output requirement of processing back material.

It should be noted that for ease of description and control, the spout can be simplified to a rectangular shape, with a larger length dimension and a smaller width dimension. When the shape of the spout is irregular rectangle, the dimension allowing the finger to pass through between two opposite sides in the length direction is called effective length, and the dimension allowing the finger to pass through between two opposite sides in the width direction is called effective width.

Since the cross-section of the finger is not perfectly circular, it is more nearly elliptical. In order to ensure the safety of the juice extractor, it is preferable that the effective width and the effective length of the juice outlet hole are less than 8.5mm, so as to ensure that the fingers of the user cannot enter the working cavity through the discharge hole in any direction.

In addition, the food processor can have a plurality of discharge ports, and the smaller value b of the effective width or the effective length of each discharge port is required to be ensured to be less than 8.5 mm.

As a preferred embodiment, the food processor is a horizontal juicer, as shown in FIGS. 1 and 3, wherein the working chamber is a laterally disposed juice collection chamber and the screw is laterally disposed within the juice collection chamber, the screw having a crushing section 33 at one end thereof near the mounting opening of the working chamber and a grinding section 34 at the other end thereof. In addition, two discharge ports are provided, one of which is arranged at the lower side of the working cavity and corresponds to the crushing section and is used for filtering and outputting juice outwards; the other is arranged at the lower side of the working cavity corresponding to the grinding section and is used for outputting the pomace outwards.

When the material is thrown into the working chamber, the screw of crushing section cuts the material and breaks at first to make the material move to grinding section one side, the material produces the juice after receiving the screw extrusion. The fruit juice that squeezes out flows back towards crushing section one side along the inside wall of working chamber lower part to outwards flow through the discharge gate that sets up in the department that corresponds with the crushing section, and the pomace after squeezing out fruit juice is then outwards discharged from the discharge gate that sets up in the department that corresponds with the section of grinding.

Preferably, as shown in fig. 4, the discharge hole provided at the lower side of the working chamber corresponding to the crushing section includes at least one juice outlet hole 241 near one side of the crushing section, and several filtering holes 242 near one side of the grinding section, the filtering holes being arranged side by side in the circumferential direction of the working chamber. When juice flows earlier to being close to the filtration pore of grinding section one side, the pomace that mixes in juice receives the filtration pore that a plurality of set up side by side to block and by the filtering, and the partial juice of filtering pomace then outwards flows through the filtration pore, and all the other pure juice that does not come to flow then continues to flow forward to outwards flow through going out the juice hole, because filter the pore and go out the juice hole and play the effect of filtration and juice respectively, consequently can improve juice speed and play juice efficiency. Of course, we can reduce the aperture size of the filtering hole properly, increase the aperture size of the juice outlet hole properly, and make the aperture of the juice outlet hole larger than that of the filtering hole, so as to make the juice flow out quickly and under the precondition of ensuring the filtering effect.

In order to improve the safety of the juice extractor, it is preferred that the effective width and the effective length of the juice outlet aperture are both less than 8.5mm, thereby ensuring that a user's fingers cannot extend into the juice outlet aperture in any direction.

Further, the juice outlet hole and the filtering hole are rectangular holes which are arranged side by side along the circumferential direction, the circumferential dimension of the filtering hole forms the width, and the axial dimension forms the length. That is, the filtering holes are in the shape of long-strip-shaped slits extending along the axial direction of the juice collecting cavity. On the premise of avoiding the fruit residues from being discharged outwards from the filtering holes and ensuring the filtering effect, the area of the filtering holes is increased as much as possible, so that the juice outlet speed and the juice outlet quantity are increased. When the fruit juice flows along the axial direction in the working cavity, the fruit juice can be fully contacted with the filtering holes, and further the fruit juice can flow outwards. Of course, the rectangular juice outlet hole is preferably an elongated hole extending axially along the juice collecting cavity to facilitate the outflow of juice.

Furthermore, a vertical feeding channel 26 can be arranged at the upper side of the juice collecting cavity corresponding to the crushing section, so that fruit and vegetable materials can be fed into the juice collecting cavity and then sheared and crushed by the screw rods of the crushing section. The effective inner diameter d of the feeding channel can be smaller than or equal to 38mm, and d is 37.5mm in the embodiment, so that on one hand, the hands of individual users, especially children, can be prevented from extending into the juice squeezing cavity through the feeding channel and being damaged by the rotating screw, and the safety performance is further improved; on the other hand, the feeding channel is favorable for feeding materials into the working cavity through the feeding channel, so that the pretreatment steps of the materials are reduced as much as possible, and the food processor is convenient to operate and use.

It will be appreciated that any user may extend his or her finger completely into the feed channel. To this end, we can control the distance h from the feed channel opening to the top surface of the helix to be in the range: h is more than 80mm, the axial length of the feeding channel is ensured to be larger than the length of the fingers, the fingers entering the feeding channel are prevented from contacting the screw rod, and further the fingers are prevented from being damaged by the rotating screw rod.

As a preferred scheme, the screw body of the screw transversely arranged in the working cavity is provided with an integrated circular baffle 35 at one end close to the mounting port of the working cavity, and the edge of the baffle is not lower than the top surface of the spiral. When the material moves in the working cavity under the pushing of the screw rod spiral, a small part of the material can overcome the pushing force of the screw rod to form reverse movement, the baffle can effectively prevent the reverse movement of the material from extruding the end cover of the mounting port, and the end cover is prevented from being damaged due to the extrusion of the material.

Preferably, we can control the radial clearance c of the baffle plate and the working cavity in the following range: c is less than 8.5 mm. When a user forgets to install the end cover or starts to drive the screw rod to rotate outside the condition that the end cover and the motor are not installed, the damage of the screw rod spiral caused by the fact that the fingers of the user enter the working cavity through the radial clearance c between the baffle and the working cavity can be effectively avoided. It can be appreciated that the smooth and rounded shape of the shield prevents injury to the user's fingers during rotation, thereby effectively improving safety.

Further, as shown in fig. 5, grinding protrusions 25 may be provided on the inner side wall of the working chamber to facilitate more efficient grinding of the material. At this time, we can suitably increase the radial clearance between the baffle and the working cavity, so as to correspondingly increase the radial clearance between the spiral and the working cavity, and avoid the spiral from interfering with the grinding bulge. In particular, we can control the radial clearance g of the baffle from the working chamber in the following range: g is more than or equal to 8.5mm and less than 12mm, so that fingers of a user can be prevented from entering the working cavity through the radial gap as much as possible, the baffle can effectively stop materials in the working cavity, and the materials are prevented from extruding the end cover of the mounting opening.

When 8.5mm g < 12mm, it is still possible for some thin fingers, in particular children's fingers, to extend into the radial gap between the flap and the working chamber. We can control the distance f between the baffle end face and the grinding lobe to be in the following range: f is more than 57.75mm, so that fingers extending into the working cavity through the radial gap between the baffle and the working cavity are ensured not to contact with the grinding bulges on the inner side wall of the working cavity, and even if the fingers rotate together under the drive of the screw rod, the fingers do not touch the grinding bulges to form extrusion and be injured.

As another preferred embodiment, as shown in FIG. 6, the food processor is a vertical juicer, where the working chamber is a longitudinally-disposed and upper-opening juice collection chamber, the end cap is an upper cap disposed at the upper opening of the juice collection chamber, and the screw is vertically disposed within the juice collection chamber. In addition, set up vertical feedstock channel on the upper cover to throw the material into juice collecting cavity. Preferably, the effective inner diameter d of the feed channel can be controlled in the following range: d is less than or equal to 38mm, so that the fruit and vegetable materials are conveniently fed into the juice collecting cavity through the feeding channel, and the hands of a user can be effectively prevented from being damaged by the rotating screw rod because the hands of the user extend into the juice collecting cavity through the feeding channel.

Further, we can control the distance H from the feed channel opening to the upper end of the helix to be in the following range: h is more than 80mm, the finger entering the feeding channel can be prevented from contacting the upper end of the spiral, and the finger is prevented from being damaged by the rotary spiral shearing.

It will be appreciated that in addition to the preferred embodiments described above, the food processor of the present invention may also be an ice cream maker, a noodle maker, a cooking machine, a meat grinder, etc. For an ice cream machine, when a frozen block-shaped fruit juice is fed into a working cavity, a motor drives a screw to rotate, the material is crushed, and the crushed ice cream is output outwards through a discharge hole. For the noodle maker, after the stirred dough is pushed and extruded by the screw, the dough is extruded outwards from the dough outlet of the die head to form the required dough, and the dough outlet forms the discharge hole at the moment. That is, various changes and modifications may be made by those skilled in the art without departing from the spirit of the invention, which is defined by the appended claims.

Claims

1. The utility model provides a safe and reliable's food preparation machine, includes that inside has frame, working chamber, the screw rod of setting in the working chamber of motor, and working chamber one end is for the installing port that is equipped with the end cover, and the other end is the link of being connected with the frame, and the screw rod has the screw rod body of spiral, sets up the screw rod axle in the screw rod body including the surface, and the screw rod axle stretches out the link and is connected with the motor shaft transmission, is equipped with the discharge gate on the working chamber, characterized by, form radial working gap a between the spiral top surface of screw rod and the discharge gate internal surface, the effective width of discharge gate or the less value of

2. A safe and reliable food processor as defined in claim 1, wherein said discharge opening has an effective width and an effective length of less than 8.5 mm.

3. A safe and reliable food processor as claimed in claim 1, characterized in that the screw is arranged transversely in the working chamber, the screw body being provided with a baffle at an end adjacent to the mounting opening of the working chamber, the radial clearance of the baffle from the working chamber being c and c < 8.5 mm.

4. A safe and reliable food processor as claimed in claim 1, characterized in that the screw is arranged transversely in the working chamber, the screw body is provided with a baffle at one end near the mounting opening of the working chamber, the inner side wall of the working chamber is provided with a grinding bulge, the radial clearance between the baffle and the working chamber is g, the distance between the end surface of the baffle and the grinding bulge is f, and g is more than or equal to 8.5mm and less than 12mm, and f is more than 57.75 mm.

5. A safe and reliable food processor as claimed in claim 1, characterized in that the working chamber is a laterally arranged juice collecting chamber, a vertical feed channel is arranged at the upper side of the working chamber, the effective inner diameter of the feed channel is d, and d is smaller than or equal to 38 mm.

6. A safe and reliable food processor as claimed in claim 5, characterized in that the distance from the opening of the feed channel to the top surface of the spiral is h, and h > 80 mm.

7. A safe and reliable food processor as claimed in claim 1, characterized in that the working chamber is a longitudinally arranged juice collecting chamber, the end cap is an upper cap arranged at the upper opening of the working chamber, a vertical feed channel is arranged on the upper cap, the effective inner diameter of the feed channel is d, and d is less than or equal to 38 mm.

8. A safe and reliable food processor as claimed in claim 7, characterized in that the screw is arranged vertically in the working chamber, the opening of the feed channel being at a distance H from the upper end of the screw, and H > 80 mm.

9. A safe and reliable food processor as defined in claim 1, wherein said screw is provided with a crushing section at one end near the mounting opening of the working chamber and a grinding section at the other end, said discharge opening being provided at the lower side of the working chamber, said discharge opening comprising at least one juice outlet hole near one side of the crushing section and a plurality of filtering holes near one side of the grinding section, the juice outlet hole having an effective width and an effective length of less than 8.5 mm.

10. A safe and reliable food processor as defined in claim 9, wherein said juice outlet and said filter holes are rectangular holes arranged side by side in the circumferential direction, the filter holes having a circumferential dimension defining a width and an axial dimension defining a length.