CN214132012U

CN214132012U - Food processor safe in utilization

Info

Publication number: CN214132012U
Application number: CN202022713161.9U
Authority: CN
Inventors: 王旭宁; 王国华; 黄东仁; 邹波
Original assignee: Hangzhou Joyoung Household Electrical Appliances Co Ltd
Current assignee: Hangzhou Jiuchuang Home Appliances Co ltd
Priority date: 2020-11-19
Filing date: 2020-11-19
Publication date: 2021-09-07
Anticipated expiration: 2030-11-19

Abstract

The utility model discloses a food preparation machine safe in utilization belongs to food processingequipment technical field, including host computer and crushing unit, crushing unit is including smashing cup, crushing sword and motor, smashes the cup and includes cup and bowl cover. Food preparation machine is still including locating the back lid that just is located the cup rear side on the host computer, is equipped with micro-gap switch in the back lid and is used for triggering micro-gap switch's connecting rod, and the back lid is upwards stretched out on the top of connecting rod, and the bottom surface of bowl cover is equipped with the ejector pin with connecting rod complex, and the ejector pin drives the connecting rod and moves down and trigger micro-gap switch when the bowl cover rotates to the position, is equipped with the mistake that prevents that the ejector pin mistake from touching the connecting rod and touches the structure that. When the cup cover is not installed, the microswitch is not triggered, and the machine body is switched off by strong electricity. When the cup cover is installed in place in a rotating mode, the ejector rod can drive the connecting rod to move downwards to trigger the microswitch, and the machine body can be started. The condition that the ejector rod triggers the microswitch by mistake through the connecting rod when the cup cover is not effectively installed in place is prevented through the false touch prevention structure, and the use safety is improved.

Description

Food processor safe in utilization

Technical Field

The utility model relates to a food processing technical field especially relates to a food preparation machine safe in utilization.

Background

The existing food processor generally comprises a host and a stirring cup, wherein a motor is arranged in the host, the stirring cup comprises a cup body and a cup cover used for covering the cup body, a rotatable crushing knife is arranged in the cup body, and a crushing cavity is formed between the cup body and the crushing knife when the cup cover covers the cup body. When the machine body works, the motor drives the crushing cutter to rotate at a high speed to cut and crush the materials in the crushing cavity, so that the purpose of food processing is realized. In order to better meet the requirements of users, a washing-free food processor appears in the market, most of the machine bodies adopt frame structures, the cup body of the stirring cup is also directly fixed on the host, and the cup cover of the stirring cup is detachably arranged on the cup body. Due to the consideration of safe use, a safety switch structure is generally additionally arranged between the main machine and the stirring cup, and the machine body can be started to work only after the cup cover is covered on the cup body to trigger the safety switch structure. However, in the conventional food processor, the safety switch structure may be triggered when the cup lid is not mounted on the cup body in a predetermined mounting manner, which is not favorable for ensuring the use safety of the machine body.

SUMMERY OF THE UTILITY MODEL

In order to solve the defects and deficiencies existing in the prior art, the utility model provides a food processor which can effectively improve the use safety.

In order to realize above-mentioned technical purpose, the utility model provides a pair of food preparation machine safe in utilization, including host computer and crushing unit, crushing unit is including smashing cup, crushing sword and motor, smashes the cup and includes cup and bowl cover, and on the host computer was located to the cup, smashes the sword and locates in the cup, and the motor is located the host computer and is used for the drive to smash the sword, food preparation machine is still including locating the back lid that just is located the cup rear side on the host computer, is equipped with micro-gap switch in the back lid and is used for triggering micro-gap switch's connecting rod, and the top of connecting rod upwards stretches out the back lid, and the bottom surface of bowl cover is equipped with and links rod complex ejector pin, and the ejector pin drives the connecting rod and moves down trigger micro-gap switch when the bowl cover rotates to the position, is equipped with the mistake that prevents that the ejector pin mistake from touching the connecting rod and touches the structure between bowl cover and the back lid.

Preferably, the false touch prevention structure comprises a first limit hook arranged on the top surface of the rear cover and a second limit hook arranged on the bottom surface of the cup cover, and the first limit hook and the second limit hook are hooked up and down when the cup cover rotates in place.

Preferably, the first limit hook comprises a first protruding portion and a first hook portion arranged at the top end of the first protruding portion, the second limit hook comprises a second protruding portion and a second hook portion arranged at the bottom end of the second protruding portion, a distance delta h is arranged between the bottom surface of the first hook portion and the top surface of the second hook portion when the first limit hook and the second limit hook are hooked up and down, the effective stroke of the connecting rod moving downwards to trigger the micro switch is s, and the delta h is not more than s.

Preferably, the top surface of the rear cover is further provided with a bump positioned on the outer side of the first limiting hook, and the top end of the connecting rod is positioned between the bump and the first limiting hook.

Preferably, a support and an elastic piece are further arranged in the rear cover, the connecting rod is arranged on the support and can move up and down, one end of the elastic piece is in contact with the support, the other end of the elastic piece is in contact with the connecting rod, and the elastic piece is stressed and deformed when the connecting rod moves down to trigger the microswitch.

Preferably, the elastic element is a spring sleeved outside the connecting rod; and/or the micro switch is arranged on the bracket.

Preferably, the top of back lid is equipped with the through-hole that supplies the connecting rod to stretch out, still is equipped with the outside sealing member of cover locating the connecting rod in the back lid, and the part of sealing member is contradicted with the inner wall of through-hole.

Preferably, the sealing element comprises a main ring body and an auxiliary ring body arranged on the inner periphery of the main ring body, an extensible or retractable connecting ring body is arranged between the main ring body and the auxiliary ring body, the auxiliary ring body is sleeved outside the connecting rod and limited, and a ring edge abutting against the inner wall of the through hole is arranged on the outer wall of the auxiliary ring body.

Preferably, the bottom end of the ejector rod is provided with a pushing surface which is obliquely arranged, and the top end of the connecting rod is provided with a linkage surface which is obliquely arranged and matched with the pushing surface.

Preferably, the outer wall on cup top is equipped with a plurality of protruding knots along circumference interval distribution, and the bowl cover is equipped with the spiral shell that corresponds with protruding knot, and spiral shell is equipped with protruding knot complex and closes the groove soon, and spiral shell is equipped with the dog at the rear side along bowl cover direction of rotation, and protruding knot is located and closes the inslot soon and contradicts with the dog when the bowl cover is rotatory to target in place.

After the technical scheme is adopted, the utility model has the advantages of as follows:

1. the utility model provides a food preparation machine adds in the back lid and has established micro-gap switch and connecting rod, and when the bowl cover was not installed on the cup, micro-gap switch was in the state that is not triggered, organism forceful electric power disconnection, the unable start-up work of organism. When the cup cover is installed in place, the ejector rod on the cup cover drives the connecting rod to move downwards to trigger the microswitch, the machine body is conducted by strong electricity, and the machine body can be started to work. The anti-false-touch structure for preventing the ejector rod from mistakenly touching the connecting rod is additionally arranged between the cup cover and the rear cover, and the ejector rod can drive the connecting rod to move downwards to trigger the microswitch only when the cup cover is installed in place in a rotating mode, so that the machine body can be started. The condition that the ejector rod triggers the microswitch by mistake through the connecting rod when the cup cover is not effectively installed in place is prevented through the false touch prevention structure, and the use safety of the whole machine is effectively improved.

2. The structure that the mistaken touch preventing structure adopts the first limit hook and the second limit hook to be matched is adopted, when the cup cover is only installed on the cup body in a rotating mode, the first limit hook and the second limit hook can be hooked, the cup cover can be installed in place, and the ejector rod can drive the connecting rod to move downwards to achieve the purpose of triggering the microswitch. If the cup cover is arranged on the cup body in a straight-inserting mode, the first limiting hook and the second limiting hook are mutually interfered, the cup cover cannot be arranged in place, and the ejector rod cannot drive the connecting rod to move downwards to achieve the purpose of triggering the microswitch. The specific structure of the anti-false touch structure is reasonably arranged, so that the anti-false touch requirement is met.

3. When the first limit hook and the second limit hook are hooked up and down, a distance delta h is formed between the bottom surface of the first hook part and the top surface of the second hook part, and the delta h is less than or equal to s, so that the ejector rod can still drive the connecting rod to move downwards for a sufficient distance to effectively trigger the microswitch under the condition that the height of the stirring cup is larger.

4. The top end of the connecting rod is positioned between the convex block and the first limiting hook, and the convex block and the first limiting hook form an open slot only for the ejector rod to be screwed in, so that the connecting rod is prevented from downwards moving to trigger the micro switch when other parts of the cup cover touch the connecting rod when the cup cover is not installed in place. The connecting rod can be limited by the convex block and the first limiting hook, and the stability of the connecting rod during moving up and down is improved.

5. When the connecting rod moves downwards to trigger the microswitch, the elastic piece is stressed and deformed. When the ejector rod on the cup cover loosens the connecting rod, the elastic piece can drive the connecting rod to automatically move upwards, so that the micro switch is timely restored to a state of not being triggered, and the use safety of the machine body is further improved.

6. Set up the cover in the back lid and locate the outside sealing member of connecting rod, the part of sealing member is contradicted with the inner wall of through-hole, utilizes the sealing member to prevent outside liquid from the inside impaired condition of microswitch performance that leads to of lid after through-hole department inflow, is favorable to improving microswitch's performance stability.

7. When the connecting rod reciprocates, the connecting ring body extends or retracts, so that the auxiliary ring body can move synchronously along with the connecting rod, the ring edge on the outer wall of the auxiliary ring body can always abut against the inner wall of the through hole, and the effectiveness of preventing the water from entering the inner part of the rear cover through the sealing piece is improved.

8. The bottom of ejector pin sets up the slope and pushes away the face, and the top of connecting rod sets up the linkage face of slope, adopts inclined plane cooperation structure between ejector pin and the connecting rod, makes the ejector pin can pass through the steady promotion connecting rod downstream of inclined plane cooperation when the bowl cover rotates to make the connecting rod can steady trigger micro-gap switch.

9. Adopt protruding knot and spiral shell complex structure between cup and the bowl cover to set up the dog in the rear side of spiral shell along the bowl cover direction of rotation, when the bowl cover rotated to protruding knot and contradicted with the dog, the bowl cover rotated to target in place, and the user of being convenient for confirms whether the bowl cover rotated to target in place when rotatory bowl cover.

Drawings

FIG. 1 is a schematic view of a food processor according to an embodiment;

FIG. 2 is a schematic view of the micro-switch, linkage, bracket, spring and seal of a food processor according to an embodiment;

FIG. 3 is a cross-sectional view of the back cover of the food processor of the embodiment taken along a vertical direction;

FIG. 4 is an enlarged view taken at A in FIG. 3;

FIG. 5 is a cross-sectional view of the lid of the food processor of the embodiment taken along an axial direction;

FIG. 6 is a schematic view of a lid for a food processor according to an embodiment;

FIG. 7 is an enlarged view at C of FIG. 1;

FIG. 8 is an exploded view of a portion of a connecting rod and a seal in a food processor according to an embodiment;

FIG. 9 is an exploded view of the cup, back cover and shock pad of the food processor according to the embodiment;

FIG. 10 is a cross-sectional view of the assembled cup, back cover and shock pad of a food processor according to an embodiment;

FIG. 11 is an enlarged view taken at D of FIG. 10;

fig. 12 is an enlarged view at E in fig. 1.

In the figure, 100-host computer, 110-machine shell, 111-fixed hole, 120-base, 130-containing cavity, 200-grinding cup, 210-cup body, 211-convex button, 220-cup cover, 221-outer cover, 221 a-convex base, 222-inner cover, 223-cover plate, 224-ejector rod, 224 a-push surface, 225-second limit hook, 225 a-second convex part, 225 b-second hook part, 226-rotary button, 227-rotary groove, 228-stop block, 300-grinding knife, 400-motor, 510-back cover, 511-slot, 512-groove, 513-positioning surface, 514-fixed column, 515-first limit hook, 515 a-first convex part, 515 b-first hook part, 516-convex block, 517-through hole, 520-a microswitch, 521-a button, 530-a connecting rod, 531-a push sheet, 532-a limiting part, 533-a linkage surface, 534-a limiting side groove, 540-a support, 541-a concave cavity, 550-a spring, 560-a sealing element, 561-a main ring body, 562-an auxiliary ring body, 563-a connecting ring body, 564-a ring edge, 600-a shock pad, 610-a strip-shaped part, 620-an arc-shaped part, 630-a convex edge, 631-a first convex edge, 632-a second convex edge, 640-a plunger, 641-an inverted buckle, 650-a convex rib and 660-a positioning bulge.

Detailed Description

The invention will be further explained with reference to the drawings and the specific embodiments. It is to be understood that the following terms "upper," "lower," "left," "right," "longitudinal," "lateral," "inner," "outer," "vertical," "horizontal," "top," "bottom," and the like are used in an orientation or positional relationship relative to one another only as illustrated in the accompanying drawings and are used merely for convenience in describing and simplifying the invention, and do not indicate or imply that the device/component so referred to must have a particular orientation or be constructed and operated in a particular orientation and therefore should not be considered as limiting the invention.

Example one

As shown in fig. 1 to 12, a food processor safe in use provided by the embodiment of the present invention includes a main machine 100 and a crushing assembly, the crushing assembly includes a crushing cup 200, a crushing knife 300 and a motor 400, the crushing cup 200 includes a cup body 210 and a cup cover 220, the crushing knife 300 is disposed in the cup body 210, and the motor 400 is disposed in the main machine 100 and used for driving the crushing knife 300. The food processor further comprises a rear cover 510 disposed on the main body 100 and located at the rear side of the cup body 210, a micro switch 520 and a connecting rod 530 for triggering the micro switch 520 are disposed in the rear cover 510, and the top end of the connecting rod 530 extends upward out of the rear cover 510. The bottom surface of the cap 220 is provided with a top rod 224 matched with the connecting rod 530, the top rod 224 drives the connecting rod 530 to move downwards to trigger the microswitch 520 when the cap 220 rotates to the position, and a false touch prevention structure for preventing the top rod 224 from mistakenly touching the connecting rod 530 is arranged between the cap 220 and the rear cover 510.

When the cup cover is not arranged on the cup body, the microswitch is in a state of not being triggered, the machine body is switched off by strong electricity, and the machine body cannot be started to work. When the cup cover is installed in place, the ejector rod on the cup cover drives the connecting rod to move downwards to trigger the microswitch, the machine body is conducted by strong electricity, and the machine body can be started to work. Through the structure of preventing mistaken touch, when the cup cover is installed in place only in a rotating mode, the ejector rod can drive the connecting rod to move downwards to trigger the microswitch, and the machine body can be started. The condition that the ejector rod triggers the microswitch by mistake through the connecting rod when the cup cover is not effectively installed in place is prevented through the false touch prevention structure, and the use safety of the whole machine is effectively improved.

Referring to fig. 3 to 6, the anti-false-touch structure includes a first limit hook 515 disposed on the top surface of the rear cover 510 and a second limit hook 225 disposed on the bottom surface of the cup cover 220. When the cap 220 rotates to the right position, the first limit hook 515 and the second limit hook 225 are hooked up and down. If the lid 220 is mounted on the cup 210 in a straight-line manner, the first limit hook 515 and the second limit hook 225 interfere with each other, the lid 220 cannot be mounted in place, and the lift rod 224 cannot drive the link 530 to move down to trigger the micro switch 520.

Referring to fig. 5, in the present embodiment, the cap 220 has a double-layer structure, and includes an outer cap 221 and an inner cap 222 fixed together, a part of the outer cap 221 in the circumferential direction protrudes outward in the radial direction to form a boss 221a with an opening at the bottom, a cover plate 223 is fixed inside the boss 221a, and a push rod 224 and a second limit hook 225 are disposed on the bottom surface of the cover plate 223.

In this embodiment, the first limiting hook 515 includes a first protruding portion 515a and a first hook portion 515b, the first protruding portion 515a protrudes upward from the top surface of the rear cover 510, and the first hook portion 515b is disposed on the inner side of the top end of the first protruding portion 515a facing the center of the cup cover 220. The second limit hook 225 includes a second protrusion 225a and a second hook 225b, the second protrusion 225a protrudes downward from the bottom surface of the lid plate 223, and the second hook 225b is disposed on the outer side of the second protruding bottom end back to the center of the lid 220. Referring to fig. 7, when the first limit hook 515 and the second limit hook 225 are hooked up and down, the first hook 515b is located above the second hook 225b, and a distance Δ h is provided between the bottom surface of the first hook 515b and the top surface of the second hook 225 b.

The microswitch 520 is provided with a button 521, the connecting rod 530 is provided with a push sheet 531 for pressing the button 521, and the lower end of the push sheet 531 facing the microswitch 520 is provided with a pressing inclined surface matched with the button 521. The microswitch 520 is in an off state under a normal state, and cuts off the strong electricity of the whole machine. When the link 530 moves downward, the push button 521 is pressed by the pressing slope of the push piece 531, so that the microswitch 520 is switched from the off state to the on state, and the strong current of the whole machine is switched on. When the link 530 moves upward, the push piece 531 pushes the slope release button 521, and the microswitch 520 is returned from the on state to the off state. The stroke of the link 530 moving down to switch the micro switch 520 from the off state to the on state is the effective stroke s of the link 530 moving down to trigger the micro switch 520. In order to ensure that the mandril 224 can drive the connecting rod 530 to move downwards for a sufficient distance to smoothly trigger the microswitch 520, delta h is less than or equal to s. Thus, when the tolerance of the height of the cup 210 is larger, the rod 224 can drive the link 530 to move downwards by a sufficient distance to smoothly trigger the micro switch 520.

In order to improve the stability of the micro switch 520 triggered by the downward movement of the connecting rod 530, an inclined surface matching structure is adopted between the top rod 224 and the connecting rod 530. In this embodiment, the bottom end of the top rod 224 is provided with an inclined pushing surface 224a, and the top end of the connecting rod 530 is provided with an inclined linkage surface 533 matching with the pushing surface 224 a.

In order to improve the stability of the connecting rod 530, the top surface of the rear cover 510 is further provided with a protrusion 516 positioned outside the first position-limiting hook 515, and the top end of the connecting rod 530 is positioned between the protrusion 516 and the first position-limiting hook 515. The connecting rod 530 is limited to a certain extent by the matching of the bump 516 and the first limit hook 515, and an open slot for only the push rod 224 to screw in is formed between the bump 516 and the first limit hook 515, so that the condition that other parts on the cup cover 220 touch the connecting rod 530 to trigger the microswitch 520 when the cup cover 220 is not installed in place can be avoided.

The back cover 510 is also provided with a bracket 540 and an elastic piece, the bracket 540 is fixed in the back cover 510, the connecting rod 530 is arranged on the bracket 540 and can move up and down, and the micro switch 520 is arranged on the bracket 540. One end of the elastic member contacts the bracket 540, and the other end contacts the connecting rod 530, and when the connecting rod 530 moves downwards to trigger the micro switch 520, the elastic member is stressed and deformed. In this embodiment, the elastic element is a spring 550 sleeved outside the connecting rod 530, the bracket 540 is provided with a cavity 541 for installing the connecting rod 530, the lower portion of the connecting rod 530 is inserted into the cavity 541, the spring 550 is located in the cavity 541, a protruding limiting portion 532 is disposed at a substantially middle portion of the connecting rod 530, the spring 550 is sleeved at the lower portion of the connecting rod 530, a top end of the spring 550 abuts against the limiting portion 532, and a bottom end of the spring 550 abuts against a bottom wall of the cavity 541. When the link 530 moves down to trigger the micro switch 520, the spring 550 is compressed by force. When the push rod 224 releases the link 530, the spring 550 can move the link 530 upward to return to the release button 521, so that the microswitch 520 is returned to the normal state.

The top of the rear cover 510 is provided with a through hole 517 for the connecting rod 530 to extend out, a sealing element 560 sleeved outside the connecting rod 530 is further arranged in the rear cover 510, part of the sealing element 560 is abutted against the inner wall of the through hole, and the sealing element 560 is used for preventing external liquid from flowing into the rear cover 510 from the through hole 517 to cause the performance of the microswitch 520 to be damaged. Referring to fig. 8, in the present embodiment, the sealing member 560 includes a main ring body 561 and a sub-ring body 562 disposed on an inner periphery of the main ring body 561, a connection ring body 563 capable of extending or retracting is disposed between the main ring body 561 and the sub-ring body 562, and a rim 564 is disposed on an outer wall of the sub-ring body 562. The main ring body 561 is positioned between the top of the bracket 540 and the top wall of the rear cover 510, the connecting ring body 563 is substantially V-shaped along the axial single-side cross section in a free state, the side wall of the upper portion of the connecting rod 530 is provided with a limit side groove 534, the sub-ring body is sleeved at the limit side groove 534 on the connecting rod 530 and is limited, and the ring edge 564 abuts against the inner wall of the through hole 517. When the link 530 moves up and down, the connection ring body 563 is deformed by a force so that the sub-ring body 562 can move up and down in synchronization with the link 530, thereby allowing the rim 564 to be always abutted against the inner wall of the through-hole 517.

A buckle structure for stabilizing the cup cover 220 relative to the cup body 210 is arranged between the cup cover 220 and the cup body 210, specifically, a plurality of convex buckles 211 distributed at intervals along the circumferential direction are arranged on the outer wall of the top end of the cup body 210, a rotary buckle 226 corresponding to the convex buckles 211 is arranged on the cup cover 220, a rotary groove 227 matched with the convex buckles 211 is arranged on the rotary buckle 226, and a stop block 228 is arranged on the rear side of the rotary buckle 226 along the rotation direction of the cup cover 220. When the cap 220 is rotated in place, the protrusion 211 is located in the engaging groove 227, and the protrusion 211 abuts against the stopper 228, so that a user can determine whether the cap 220 is rotated in place when the cap 220 is rotated.

Referring to fig. 9, the lower end of the cup 210 is disposed in the main body 100, at least a portion of the rear cover 510 is disposed around the cup 210, and an elastic shock-absorbing pad 600 is disposed between the rear cover 510 and the cup 210. Direct rigid contact between the cup body and the rear cover is converted into flexible contact between the cup body and the damping pad, the rear cover and the damping pad respectively, vibration transmission strength between the cup body and the rear cover during working of the machine body is weakened, and accordingly working noise of the machine body is reduced. The deformation of the shock pad can effectively offset the fit tolerance between the cup body and the rear cover, and the processing precision requirements of the cup body and the rear cover are favorably reduced.

The front surface of shock absorber pad 600 is provided with an everted convex edge 630, and the angle between the inner surface of convex edge 630 facing the center of shock absorber pad 600 and the front surface of shock absorber pad 600 in a free state is α, α > 90 °. Protruding edge on the shock pad can automatic upwarp when the assembly, and the equipment is accomplished the back, protruding edge can hug closely on the outer wall of cup under the stress action of self, guarantees to realize reliable sealed cooperation through the shock pad between cup and the back lid, and the material of avoiding overflowing flows into between cup and the back lid, also can avoid because of the too big easy condition of warping of back lid that leads to of sealed cooperation effort between cup and the back lid.

Referring to fig. 10, rear cap 510 has a substantially hollow arc-shaped transverse cross-section, rear cap 510 has an arc-shaped curvature conforming to the curvature of cup 210, rear cap 510 is disposed around the rear side of cup 210 toward the inside of the center of cup 210, and the arc-shaped center angle θ of the inside of rear cap 510 is about 110 °.

Shock pad 600's shape matches with back lid 510, and shock pad 600 includes integrated into one piece's bar portion 610 and arc portion 620, and bar portion 610 is equipped with two and two bar portion 610 parallel correspondence settings, and arc portion 620 matches with cup 210, and the both ends of arc portion 620 are connected respectively in the top of two bar portions 610. In this embodiment, the curvature of the arc portion 620 substantially matches the curvature of the cup 210, the arc portion 620 is located between the top edge of the inner side of the back cover 510 and the cup 210, and the two strip portions 610 are located between the two vertical edges of the inner side of the back cover 510 and the cup 210.

In order to ensure that the convex edge 630 can automatically warp during assembly and can be well attached to the outer wall of the cup body 210 after assembly, the angle alpha is preferably more than 120 degrees and less than 160 degrees. In order to ensure that the convex edge 630 can better cling to the outer wall of the cup body 210 under the action of self stress, the angle between the outer surface of the convex edge 630, which faces away from the center of the shock pad 600, and the front surface of the shock pad 600 in a free state is beta, wherein beta is less than alpha. In this embodiment, the front surfaces of the arc portion 620 and the bar portion 610 are provided with an outwardly turned flange 630. Referring to fig. 11, the outer edge of the front surface of the strip 610 is provided with an everted first flange 631, P1 is the inner surface of the first flange 631 facing the center of the cushion 600, P2 is the outer surface of the first flange 631 facing away from the center of the cushion 600, P3 is the front surface of the strip 610, the angle between P1 and P3 is α, and the angle between P2 and P3 is β. Referring to fig. 4, an everted second convex edge 632 is formed at the outer edge of the front surface of the arc-shaped portion 620, P4 is the inner surface of the second convex edge 632 facing the center of the shock pad 600, P5 is the outer surface of the second convex edge 632 facing away from the center of the shock pad 600, P6 is the front surface of the arc-shaped portion 620, the angle between P4 and P6 is α, and the angle between P5 and P6 is β. Wherein α is preferably set to 140 ° and β is preferably set to 100 °.

In order to ensure that the protruding edge 630 can be tightly attached to the outer wall of the cup body 210, the thickness of the protruding edge 630 needs to be set reasonably. Because beta is smaller than alpha, the thickness of the convex edge 630 gradually decreases from back to front, the thickness of the front end of the convex edge 630 is t, and t is more than or equal to 1mm and less than or equal to 5 mm. In this embodiment, the thickness t of the front end of the ledge 630 is preferably set to 2 mm.

The shock pad 600 is connected to the rear cover 510 through a connecting structure, in this embodiment, the rear surfaces of the strip portion 610 and the arc portion 620 are respectively provided with a plurality of insertion posts 640 which are distributed at intervals and protrude backwards, the insertion posts 640 are provided with inverted buckles 641, the front side of the rear cover 510 is provided with insertion slots 511 for the insertion posts 640 to insert, and the insertion posts 640 are inserted into the insertion slots 511 to connect the shock pad 600 to the rear cover 510.

In order to improve the stability of the shock pad 600, the inner edges of the strip portion 610 and the arc portion 620 are respectively provided with a protruding rib 650 protruding backwards, the front side of the rear cover 510 is provided with a groove 512 matching with the protruding rib 650, and when the shock pad 600 is connected to the rear cover 510, the protruding rib 650 is embedded in the groove 512. In this embodiment, the posts 640 are disposed on the rear surface of the ribs 650, and the slots 511 are disposed on the inner wall of the grooves 512.

In order to improve the stability of the end of the cushion 600, the end of the cushion is provided with a positioning protrusion 660, and the lower end of the front side of the rear cover 510 is provided with a positioning surface 513. When the shock pad 600 is connected to the rear cover, the positioning surface 513 is abutted against the positioning protrusion 660, so that the end of the shock pad 600 is limited. In this embodiment, the bottom ends of the two bar-shaped portions 610 are respectively provided with a positioning protrusion 660 protruding backward, and the positioning surface 513 is disposed at two end portions of the groove 512.

In this embodiment, the host 100 includes a housing 110 and a base 120 disposed at the bottom of the housing 110, a receiving cavity 130 is formed between the housing 110 and the base 120, the motor 400 is disposed in the receiving cavity 130, and the rear cover 510 is formed separately and connected to the host 100 by a fastening member. Referring to fig. 12, a hollow fixing post 514 is disposed inside the rear cover 510, a fixing hole 111 corresponding to the fixing post 514 is disposed on the rear side of the top wall of the casing 110, and a bolt connecting the rear cover 510 and the host 100 passes through the fixing hole 111 from bottom to top and is screwed into the fixing post 514.

When the food processor of the embodiment is used for processing materials, the materials are placed in the cup body 210 and the cup cover 220 is covered, when the cup cover 220 rotates to the position, the mandril 224 drives the connecting rod 530 to move downwards to trigger the microswitch 520, and the machine body can be electrified to work after being powered on. When the machine body works, due to the damping effect of the damping pad 600, the vibration transmission strength between the cup body 210 and the rear cover 510 is weakened, which is beneficial to reducing the working noise of the whole machine. If the material overflows from the grinding cup 200, the overflowing material cannot flow into the space between the cup body 210 and the rear cover 510 because the rear cover 510 and the cup body 210 are in sealing fit through the shock absorption pad 600, and the performance of the micro switch 520 cannot be affected.

It is understood that the arc center angle θ of the inner side of the rear cover 510 may be set to other reasonable angle values such as 90 °, 95 °, 100 °, 105 °, 115 °, 120 °, 125 °, 130 °, 135 °, 140 °, and so on.

It is understood that the angle α between the inner surface of the convex edge 630 facing the center of the shock absorbing pad 600 and the front surface of the shock absorbing pad 600 in the free state may also be set to any other reasonable angle value such as 91 °, 95 °, 100 °, 105 °, 110 °, 115 °, 120 °, 125 °, 130 °, 135 °, 145 °, 150 °, 155 °, 160 °, and α is preferably set to any angle value within 120 ° to 160 °.

It is understood that the angle β between the outer surface of the convex edge 630 facing away from the center of the shock absorbing pad 600 and the front surface of the shock absorbing pad 600 in the free state may be set to other reasonable values, and β may be smaller than α.

It is understood that the thickness t of the front end of the flange 630 may be set to other reasonable thickness values such as 1mm, 1.5mm, 1.9mm, 2.5mm, 3mm, 3.5mm, 4mm, 4.5mm, 5mm, etc.

It is understood that the rear cover 510 may be integrally formed with the main body 100.

It is understood that the cover plate 223 may also be integrally formed with the outer cover 221, or the cover plate 223 may also be integrally formed with the inner cover 222.

It can be understood that the cap 220 may also be a single layer structure, and at this time, the post 224 and the second limit hook 225 may be integrally formed with the cap or may be separately formed and then fixed to the cap.

It is understood that the microswitch 520 may also be secured directly to the back cover 510.

It can be understood that the elastic member may be other reasonable members, which meet the use requirement.

In addition to the above preferred embodiments, the present invention has other embodiments, and those skilled in the art can make various changes and modifications according to the present invention without departing from the spirit of the present invention, which should fall within the scope defined by the appended claims.

Claims

1. The utility model provides a food preparation machine safe in utilization, includes host computer and crushing unit, and crushing unit is including smashing cup, crushing sword and motor, smashes the cup and includes cup and bowl cover, and on the host computer was located to the cup, in smashing the sword and locating the cup, the motor was located in the host computer and was used for the drive to smash the sword, a serial communication port, food preparation machine is still including locating the back lid that just is located the cup rear side on the host computer, is equipped with micro-gap switch in the back lid and is used for triggering micro-gap switch's connecting rod, and the back lid is upwards stretched out on the top of connecting rod, the bottom surface of bowl cover be equipped with connecting rod complex ejector pin, the ejector pin drives the connecting rod and moves down trigger micro-gap switch when the bowl cover is rotatory to the position, be equipped with the mistake that prevents that the ejector pin mistake from touching the connecting rod between bowl cover and the back lid and touch the structure.

2. The food processor of claim 1, wherein the anti-false touch structure comprises a first limit hook disposed on the top surface of the rear cover and a second limit hook disposed on the bottom surface of the cup cover, wherein the first limit hook and the second limit hook are hooked up and down when the cup cover is rotated in place.

3. The food processor as defined in claim 2, wherein the first limit hook comprises a first protrusion and a first hook portion disposed at a top end of the first protrusion, the second limit hook comprises a second protrusion and a second hook portion disposed at a bottom end of the second protrusion, a distance Δ h is provided between a bottom surface of the first hook portion and a top surface of the second hook portion when the first limit hook and the second limit hook are hooked up and down, an effective stroke of the micro switch triggered by downward movement of the connecting rod is s, and Δ h is less than or equal to s.

4. The food processor of claim 2, wherein the top surface of the rear cover further comprises a protrusion located outside the first limit hook, and the top end of the linkage rod is located between the protrusion and the first limit hook.

5. The food processor as defined in claim 1, wherein the rear cover further includes a bracket and an elastic member, the link is disposed on the bracket to move up and down, one end of the elastic member contacts the bracket, the other end of the elastic member contacts the link, and the link moves down to trigger the micro switch, so that the elastic member is deformed under a force.

6. The food processor of claim 5, wherein the resilient member is a spring disposed around the outer portion of the linkage; and/or the micro switch is arranged on the bracket.

7. The food processor as defined in claim 1, wherein the rear cover has a through hole at a top thereof for the link to extend through, and a sealing member disposed in the rear cover and covering an outer portion of the link, a portion of the sealing member being in contact with an inner wall of the through hole.

8. The food processor as defined in claim 7, wherein the sealing member includes a main ring body and a sub-ring body disposed on an inner periphery of the main ring body, wherein an extendable or retractable connecting ring body is disposed between the main ring body and the sub-ring body, the sub-ring body is disposed outside the connecting rod and is restrained, and a rim abutting against an inner wall of the through hole is disposed on an outer wall of the sub-ring body.

9. The food processor as defined in claim 1, wherein the bottom end of the push rod is provided with an obliquely arranged push surface, and the top end of the connecting rod is provided with an obliquely arranged coupling surface engaged with the push surface.

10. A food processor as claimed in any one of claims 1 to 9, wherein the outer wall of the top end of the cup body is provided with a plurality of circumferentially spaced apart projections, the lid is provided with a corresponding projection, the projection is provided with a cooperating recess for cooperating with the projection, the projection is provided with a stop at a rear side in a rotational direction of the lid, and the projection is located in the cooperating recess and abuts against the stop when the lid is rotated in place.