CN210169870U - Safe coupler assembly and food processor - Google Patents

Abstract

A safe food processor coupler assembly and a food processor comprise an upper coupler and a lower coupler which are mutually inserted and matched, wherein the upper coupler comprises a fixed shell and an upper electrode, the lower coupler comprises a shell and a lower electrode positioned in the shell, the shell is provided with a first through hole for the upper electrode to pass through, and the upper electrode and the lower electrode are electrically connected when the couplers are inserted, the coupler further comprises a switch unit, the switch unit comprises a static elastic sheet and a dynamic elastic sheet which are positioned in the shell, and the switch unit is triggered when the couplers are inserted, so that the dynamic elastic sheet and the static elastic sheet are conducted inside the couplers. The switch unit is arranged in the coupler, so that the electric transmission and switch conduction functions can be realized simultaneously when the coupler is plugged, the structure is compact, and the functionality is strong. In addition, the coupler can realize the triggering of the switch unit without independently arranging a triggering structure, and the linkage is better. For the food processor, the positioning structure is reduced, and the food processor is safe and reliable.

Description

Safe coupler assembly and food processor

Technical Field

The utility model relates to a food processing field especially relates to a safe and reliable's coupler subassembly and food preparation machine for food processing machine.

Background

Food preparation machine wide application is in people's life, current food preparation machine commonly used, including built-in motor's frame and the stirring cup of setting in the frame top, the stirring cup includes the cup and sets up in the bowl cover of cup upper end opening part, is equipped with crushing sword in the stirring cup, and the motor passes through the shaft coupling drive and smashes the sword rotation in order to eat the material and smash processing in the stirring cup. The stirring cup is also provided with a cutter head and a heating body, wherein the heating body is usually a heating pipe and is arranged around the periphery of the cutter head; the mixing cup is also usually provided with a temperature controller and an anti-overflow electrode. The temperature controller, the anti-overflow electrode and the heating body are electrically connected with the base through the coupler.

The existing coupler usually includes an upper coupler and a lower coupler, and the electric and signal transmission is generally realized by inserting 4-6 electrodes into each other. Because the couplers are mutually inserted when the stirring cup is matched with the base, the upper coupler and the lower coupler are required to be accurately aligned, the use requirement of consumers is high, and the experience is not good. The existing coupler assembly is usually only used for electric transmission, the function is relatively single, and for a food processor, when the switch function is needed, a switch is needed to be arranged separately, so that the number of accessories is increased, and the cost of the accessories and the cost of the whole machine are increased.

In order to improve the safety of the food processor, an independent switch unit is further arranged between the stirring cup and the base, and generally comprises a microswitch arranged on the base and a trigger rod arranged on the stirring cup, and when the stirring cup is arranged on the base, the trigger rod triggers the microswitch to electrify the whole food processor. In the existing scheme, the micro switch and the coupler are arranged in a separated mode, so that a structure needing to be positioned when the stirring cup is installed between the stirring cup and the base at least comprises the coupler, the coupler and the micro switch structure, the positioning structure is multiple, the positioning is required to be accurate, and the use experience is poor. Meanwhile, due to the fact that a plurality of positioning structures need to be arranged, the upper surface of the base is complex in arrangement and has a plurality of dead angles, the base is troublesome to clean, a plurality of accessories need to be installed in the production process of the base, and production efficiency is low. And the coupler and the microswitch are independently arranged and are respectively connected by wires, so that the internal circuit is complex, and the production and maintenance efficiency is low. The coupler and the microswitch are used as two accessories, and need to be managed respectively in the production management process, so that the production efficiency is poor, and the cost is increased. The two fittings also bring about an increase in volume, which makes the food processor bulky.

Disclosure of Invention

An object of the utility model is to provide a convenient operation, safe and reliable's coupler subassembly and food preparation machine.

In order to achieve the above object, the utility model provides a following technical scheme: a reliable coupler assembly of a food processor comprises an upper coupler and a lower coupler which are mutually inserted and matched, wherein the upper coupler comprises a fixed shell and an upper electrode, the lower coupler comprises a shell and a lower electrode positioned in the shell, the shell is provided with a first through hole for the upper electrode to pass through, and the upper electrode and the lower electrode are electrically connected when the couplers are inserted, the coupler further comprises a switch unit which comprises a static elastic sheet and a dynamic elastic sheet positioned in the shell, and the switch unit is triggered when the couplers are inserted and enables the dynamic elastic sheet and the static elastic sheet to be conducted inside the couplers.

Preferably, the switch unit further comprises an instant trigger structure connected with the movable elastic sheet, the instant trigger structure pushes the movable elastic sheet to be instantly conducted with the static elastic sheet when the switch unit reaches an over-trigger position, and a safety distance is kept between the movable elastic sheet and the static elastic sheet when the switch unit does not reach the trigger position.

Preferably, the instant trigger structure comprises a second elastic piece, one end of the second elastic piece is connected with the switch unit, and the other end of the second elastic piece is connected with the movable elastic piece and can push the movable elastic piece to be communicated with the static elastic piece.

Preferably, the switch unit further includes an installation shell and a movable rod, the static elastic sheet, the movable elastic sheet and the second elastic member are arranged in the installation shell and further arranged in the shell, the installation shell is provided with a sliding groove, the movable rod can slide in the sliding groove, and the movable rod can push the movable elastic sheet to be conducted with the static elastic sheet when the coupler is plugged.

Preferably, the switch unit further comprises a movable frame and a third elastic piece for pushing the movable frame, one end of the second elastic piece is connected with the movable frame, the other end of the second elastic piece is connected with the movable elastic piece, the movable frame can slide up and down in the shell, and the movable frame can push the movable elastic piece to be communicated with the static elastic piece when the coupler is plugged.

Preferably, the casing is square, and one side opening, first through-hole set up in the opening opposite face, the set casing is corresponding square.

Preferably, the first through hole is arranged on the surface opposite to the opening, and the first through hole comprises two strip-shaped holes which are arranged side by side.

Preferably, the upper coupler further comprises a fixing plate, the fixing plate is provided with an electrode groove, the upper electrode is located in the electrode groove, and the fixing plate can push the shielding plate to slide.

Preferably, the fixing plate includes two, and the plurality of upper electrode slots are disposed on opposite sides of the fixing plate.

In order to solve the technical problem, the utility model provides a reliable food preparation machine, including the frame with set up in stirring cup on the frame, be equipped with motor and control panel in the frame, the stirring cup include the cup with set up in the bowl cover of organism upper end opening part, be equipped with crushing sword in the cup, crushing sword through the shaft joint with motor power connects, wherein, the stirring cup pass through the coupler with the frame electricity is connected, the coupler is above-mentioned any technical scheme the coupler, the stirring cup lateral wall is equipped with the handle, go up the coupler set up in the handle below, the coupler is located down the frame corresponds go up coupler position department.

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

1. the utility model discloses in set up the switch unit in the coupler, the coupler can realize the function that telex and switch switched on simultaneously when pegging graft, compact structure, and is functional strong. And, the coupler relies on original last coupler structure, for example goes up the electrode, can trigger the switch unit, and can need not to set up alone and trigger the structure, and linkage nature is better, and food preparation machine is using during the coupler, only need guarantee the correct counterpoint of coupler, can ensure that the switch triggers, ensure the telex simultaneously, food preparation machine's reliability promotes greatly. The switch is located in the shell, the safety protection structure of the coupler can simultaneously protect the electrode transmission and the switch unit, the protection structure does not need to be arranged on the switch unit independently, the sealing performance and the safety performance are both improved, and the reliability is better. Meanwhile, the number of the protection structures is reduced, the product structure is simple, the production, the use and the maintenance are simple, and the cost is also obviously reduced.

2. In a common food processor, a switch unit is used for switching on strong electricity, namely 220V commercial power, when the distance between a movable elastic sheet and a static elastic sheet is short but the movable elastic sheet and the static elastic sheet are not in contact with each other in the process of slow contact, electric discharge can occur between the movable elastic sheet and the static elastic sheet, electric sparks can be generated between the movable elastic sheet and the static elastic sheet, the contact surface of the movable elastic sheet and the static elastic sheet is damaged, the contact conduction performance between the movable elastic sheet and the static elastic sheet is reduced, and even the danger of fire can. The instantaneous trigger structure is arranged, so that when the non-moving elastic sheet and the static elastic sheet do not reach the trigger position, the non-moving elastic sheet and the static elastic sheet keep a safe distance, when the trigger position is reached, the instantaneous trigger structure pushes the moving elastic sheet to be in contact with the static elastic sheet quickly, electric sparks generated between the moving elastic sheet and the static elastic sheet are effectively prevented, the contact effect of the moving elastic sheet and the static elastic sheet is improved, the conductive performance of the switch unit is improved, the service life of the switch unit is prolonged, and the use performance of the coupler assembly.

3. The elastic piece is arranged to push the movable elastic piece, so that the structure is simple and reliable, the production cost is low, and the assembly is convenient.

4. Through setting up the installation shell, come to further protect movable elastic sheet and quiet elastic sheet for keep apart better between switch unit and the upper and lower electrode, dangerous situation such as short circuit can not take place, and the security performance promotes greatly. The movable elastic sheet is pushed by the movable rod or the movable frame instead of directly pushing the movable elastic sheet, the trigger structure is not directly contacted with the conductive part, the structure is safer, and the movable elastic sheet is also protected.

5. The switch unit and the lower electrode are installed in the shell by the installation seat, so that the switch unit and the lower electrode are assembled and maintained quickly. On the one hand, whole coupler internal parts are general, low in production cost, and production efficiency is high, and on the other hand, when needs maintenance during the coupler, also can dismantle fast and change the accessory for cost of maintenance greatly reduced.

6. The mounting seat is divided into a plurality of mounting seats, and the lower electrode and the switch unit are respectively arranged on the different mounting seats, so that in the actual use process, the lower electrode part and the switch unit part do not need to be maintained at the same time and are separately arranged, the corresponding parts can be respectively dismounted according to the requirements, and the parts which normally work do not need to be dismounted, so that the maintenance cost is further reduced.

7. The baffle is arranged in the shell, the lower electrode is isolated from the switch unit, short circuit conduction possibly generated between the lower electrode and the switch unit is effectively prevented, and the safety performance of the coupler is improved. Meanwhile, the partition plate can effectively improve the strength of the shell, prevent the shell from deforming and further improve the reliability of the lower coupler.

8. The square casing and the square fixing casing are arranged, and meanwhile, the fool-proof ribs are arranged, so that the machine base can be accurately positioned during production and assembly, the danger of the whole machine caused by error of a production operator during assembly is prevented, the requirement on the operator is reduced, and the production cost and the production efficiency are improved.

9. The first through hole is formed in the surface, opposite to the opening, of the lower electrode and the switch unit connecting wire, so that the lower electrode and the switch unit connecting wire are located on one side, opposite to the first through hole, of the lower coupler, the lower coupler opening side is arranged in the machine base, the lower electrode and switch unit connecting end can be located in the machine base, connection of the lower coupler and a wire is facilitated, and safety protection of the lower coupler connecting end is facilitated. The first through holes are arranged in two, so that the lower electrodes and the upper electrodes are respectively positioned at different through hole connection and conduction positions, and the upper electrodes and the lower electrodes are conducted more safely.

10. The fixing plate is arranged, the electrode groove is formed, so that the upper electrode is positioned more reliably, meanwhile, when the couplers are mutually inserted, the shielding plate or the lower electrode is pushed by the fixing plate, the upper electrode is only used for bearing a conduction function, the protection of the upper electrode is strengthened, meanwhile, the strength of the upper electrode can be reduced, and the cost of the upper electrode is reduced.

11. The upper electrodes are arranged on the different fixing plates and are located on the two sides of the fixing plates, so that on one hand, the fixing protection of the upper electrodes is strengthened, on the other hand, the isolation between the upper electrodes arranged on the back is increased, the electrical isolation of the upper electrodes is strengthened, and the mutual short circuit between the upper electrodes is effectively prevented. Furthermore, when the couplers are mutually inserted, the fixing plates arranged in a back-to-back manner simultaneously separate the lower electrodes, so that the safety performance of the upper and lower electrodes during insertion is improved.

12. The switch unit is arranged in the coupler, the food processor can simultaneously realize the functions of coupling conduction and switch unit control only by adopting any scheme of the coupler assembly, and when the stirring cup is installed, the complete machine can be electrified and electrically connected from top to bottom only by positioning and inserting the coupler, so that the stirring cup is installed quickly and conveniently. Meanwhile, the switch unit is arranged in the coupler, the conductive performance of the existing coupler is not influenced, and the coupler is universal with the existing coupler, simple in structure, low in production cost and high in universality. And, because the switch unit is embedded, need not set up the switch unit alone on the frame again for frame upper surface overall structure is simple, and the dead angle that needs the washing is few, makes things convenient for the washing of frame, also can install fast when producing the frame certainly. The switch unit sets up in coupler down, and the switch unit can be realized with being connected of coupler down to a set of wire, and the reliability is high, connects conveniently, and production and maintenance are swift high-efficient. The stirring cup can not be provided with a trigger structure to trigger the switch unit, so that the structures of the machine base and the stirring cup which need to be arranged are reduced, and the reliability is greatly improved.

13. For food processing machines, especially high speed food processing machines with broken walls, the motor drives the crushing knife to rotate at high speed through the coupling, and the mechanical transmission performance of the motor is more demanding, so the coupling is usually arranged at the center of the machine base and the stirring cup. In order to realize the coupling function and the switching function, the conventional food processor needs to divide the upper joint into a plurality of areas, so that the contact position is complicated. And the switch unit is arranged in the coupler, and the coupler is arranged at the periphery relative to the center of the coupling, so that the connecting and positioning requirements of the food processor are reduced, and meanwhile, when the stirring cup is installed, the coupler can simultaneously realize the coupling function and the switch function, and the special positioning requirement is not needed.

Drawings

Fig. 1 is a schematic structural diagram of a first embodiment of the safe and reliable coupler assembly and food processor of the present invention.

Fig. 2 is an exploded view of a coupler according to a first embodiment of the present invention.

Fig. 3 is a schematic structural diagram of a coupler according to a first embodiment of the present invention.

Fig. 4 is a schematic structural diagram of a lower coupler shell according to a first embodiment of the present invention.

Fig. 5 is a cross-sectional view of the coupler according to the first embodiment of the present invention.

Fig. 6 is a second cross-sectional view of the coupler structure according to the first embodiment of the present invention.

Fig. 7 is an exploded view of a coupler assembly and a food processor according to a second embodiment of the present invention.

Fig. 8 is a cross-sectional view of a coupler according to a second embodiment of the present invention.

Fig. 9 is a schematic view of a safe and reliable coupler assembly and a coupler of a food processor according to a third embodiment of the present invention.

Fig. 10 is a cross-sectional view of a third embodiment of a safe and reliable coupler assembly and food processor according to the present invention.

Fig. 11 is an exploded view of a fourth embodiment of a safe and reliable coupler assembly and food processor according to the present invention.

Fig. 12 is a schematic structural view of a fifth embodiment of the coupler assembly and the food processor according to the present invention.

The names of the components marked in the figures are as follows:

1. a stirring cup; 101. a metal inner cup; 102. a plastic outer cup; 103. heating a tube; 11. a cup body; 12. a handle; 13. a cup holder; 130. a fixing hole; 2. a machine base; 200. a machine head; 201. a motor; 202. a crushing knife; 21. mounting holes; 3. an upper coupler; 31. a stationary case; 310. a mounting seat; 311. a fool-proof groove; 33. an upper electrode; 331. an upper electrode connecting pole; 34. an electrode plate; 341. a fixing plate; 342. an electrode tank; 343. a trigger lever; 4. a lower coupler; 41. a housing; 410. a first through hole; 411. a housing mount; 412. a snap-in hole; 413. preventing the fool-proof rib; 414. fixing the ribs; 415. a partition plate; 416. a trigger slot; 417. a chute; 418. a second through hole; 43. a shutter; 431. a rib is protruded; 432. a seal member; 433. isolating ribs; 434. a guide surface; 435. a pushing part; 436. pushing the surface; 44. a first elastic member; 45. a lower electrode; 451. a lower electrode contact; 452. a lower electrode buckle; 453. an upper wire slot of the lower electrode; 454. a lower electrode buckle sheet; 46. a first mounting seat; 461. a first positioning post; 462. a first mounting seat buckle; 463. a lower electrode fixing buckle; 47. a second mounting seat; 470. a support pillar; 471. a second mounting seat buckle; 472. a second mounting base positioning plate; 5. a switch unit; 50. mounting a shell; 500. a sliding groove; 51. a movable spring plate; 511. the movable elastic sheet is raised; 52. a static spring plate; 53. a second elastic member; 54. a movable rod; 540. a fourth elastic member; 55. a fixed block; 56. a movable frame; 560. the movable frame is raised; 57. a third elastic member; 58. a second movable bar; 580. a fifth elastic member; 61. an upper coupling; 62. and a lower coupling.

Detailed Description

In order to more clearly explain the overall concept of the present application, the following detailed description is given by way of example in conjunction with the accompanying drawings.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application, however, the present application may be practiced in other ways than those described herein, and therefore the scope of the present application is not limited by the specific embodiments disclosed below.

In addition, in the description of the present application, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", and the like, indicate orientations and positional relationships based on the orientations and positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

In particular, in the present application, the "upper coupler" and the "lower coupler" are defined only to distinguish two portions of the coupler, and are not necessarily limited to the positional relationship between the "upper" and the "lower". The common names, which can also be defined as the male end of the coupler and the female end of the coupler, are used to distinguish the two parts that are plugged into each other. Obviously, the "upper coupler" and the "lower coupler" may also be various installation implementations such as front-back insertion, left-right insertion, and rotary insertion.

Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise. In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; the connection can be mechanical connection, electrical connection or communication; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. In the description herein, reference to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Example one

As shown in fig. 1-6, the utility model provides a reliable food preparation machine coupler subassembly and food preparation machine, food preparation machine includes frame 2 and sets up stirring cup 1 on frame 2, be equipped with motor and control panel (not shown in the figure) in the frame 2, stirring cup 1 includes cup 11, bowl cover (not shown in the figure), cup 13, cup 11 upper end is equipped with the opening, the bowl cover set up in the opening part, cup 11 lateral wall is equipped with handle 12, be equipped with in the cup 11 by motor drive's crushing sword (not shown in the figure), the motor is connected with lower connecting axle ware 62, it is connected with last shaft ware 61 to smash the sword, go up shaft ware 61 and lower shaft ware 62 power connection to make motor drive smash the sword. The stirring cup 1 is electrically connected with the base 2 through a coupler.

The coupler comprises an upper coupler 3 and a lower coupler 4, the upper coupler 3 is arranged at the bottom of the stirring cup 1, and the lower coupler 4 is arranged on the periphery of the upper end of the machine base 2. Preferably, the upper coupler is located below the handle, and the lower coupler is located at a position corresponding to the upper coupler on the upper end of the base. The cup body 11 is mounted and connected to the base 13, an inner space is formed between the cup body 11 and the base 13, the base 13 is provided with a fixing hole 130, the upper coupler 3 is mounted in the base 13, that is, in the space formed by the cup body 11 and the base 13, and the upper coupler 3 is exposed through the fixing hole 130, so that the lower coupler 4 can pass through the fixing hole 130 and then be inserted into the upper coupler 3 to be conducted with the upper coupler. The coupler is arranged at the periphery only in relation to the relative position of the coupling, i.e. the coupling is defined as the center of the food processor, the coupler being arranged. When the stirring cup 1 is installed, the coupler and the coupling are respectively in insertion fit to realize electric and power connection. Due to the stability requirement during power transmission, the power transmission generally requires accurate positioning and good centering property, so the coupling is usually arranged at the center of the machine base and the stirring cup. The coupler is used for electric transmission, can realize plug contact, namely can realize the electric transmission, and is arranged on the periphery relative to the coupling, so that the transmission of the coupling and the electric transmission of the coupler are not influenced.

The upper coupler 3 comprises a fixed shell 31 and an upper electrode 33, a mounting seat 310 is arranged on the outer side wall of the fixed shell 31, and the upper coupler 3 is mounted on the stirring cup 1 through the mounting seat 310. Preferably, the cup holder 31 is provided with a through hole, and the upper coupler 3 is fixed in the stirring cup and exposed from the through hole. The fixed shell 31 is internally provided with an electrode plate 34, the electrode plate 34 extends downwards to form a fixed plate 341, the fixed plate 341 is provided with an electrode groove 342, the upper electrode 33 is arranged in the electrode groove 342, preferably, the upper electrode 33 protrudes out of the electrode groove 342, so that the upper electrode 33 and the lower electrode 45 are better contacted and conducted. The upper electrode 33 is provided in plural, and the lower electrode 45 corresponding thereto is provided in the same mathematical formula. In this embodiment, the number of the upper electrodes 33 is 4, the number of the fixing plates 341 is two, and the upper electrodes 33 are disposed on two opposite sides of the fixing plates 341. The upper end of the upper electrode 33 is also provided with an upper electrode connecting pole 331, and the upper coupler 3 is connected with a lead through the upper electrode connecting pole 331 and further connected with each electric device in the stirring cup. Preferably, the upper electrode 33, the electrode plate 34 and the fixing case 31 are integrally formed. The benefits of this arrangement are: the integrally formed upper coupler can ensure the structure to be reliable; meanwhile, the fixing plate and the electrode groove are arranged, so that the electrode is strengthened and fixed, and the upper electrode cannot deform after being used for a long time; the upper electrodes are respectively arranged on two sides of the fixing plate, so that short circuit danger caused by mutual conduction between the inner electrodes of the coupler can be effectively prevented.

The lower coupler 4 includes a housing 41, a lower electrode 45, and a switching unit 5. Casing 41 is square, and one side opening, casing 41 surface is equipped with casing mount 411, frame 2 upper surface is equipped with mounting hole 21, mounting hole 21 is square, lower coupler 4 passes through casing mount 411 install in frame 2, and by mounting hole 21 stretches out frame 2, casing 41 with still be equipped with the sealing member between the frame 2. The lateral wall of the shell 41 is further provided with a fool-proof rib 413, the corresponding fool-proof groove 311 is arranged on the fixed shell 31, and the fool-proof rib 413 can guarantee that no installation error occurs during installation of the lower coupler 4, so that the production efficiency of the food processor is improved.

The upper surface of the housing 41 is provided with a first through hole 410, and preferably, the first through hole 410 is disposed on a surface opposite to the opening. The lower coupler 4 further comprises a shielding plate 43, the shielding plate 43 is arranged in the housing 41 and shields the first through hole 410, preferably, a convex rib 431 is arranged on the upper surface of the shielding plate 43, the convex rib 431 extends into the first through hole 410, and a sealing member 432 is further sleeved on the convex rib 431. The first through hole 410 includes two elongated holes arranged side by side, and the rib 431 and the sealing member 432 are provided as two corresponding holes. The shielding plate 43 can slide in the shell and is pushed by the first elastic piece 44, when the lower coupler 4 is in a non-plugging state, the shielding plate 43 shields the first through hole, so that food materials or dust and the like can be effectively prevented from entering the interior of the coupler, and a safety effect is achieved; when the coupler is plugged, the shutter 43 moves downward under the pushing of the electrode plate 34 to open the first through hole 410, so that the upper electrode 33 is inserted into the housing 41 and is in contact with and conducted to the lower electrode 45.

The lower coupler 4 further includes a mounting seat, which in this embodiment includes a first mounting seat 46 and a second mounting seat 47. The lower electrode 45 is mounted on the first mounting seat 46, wherein the lower electrode 45 includes a lower electrode buckle 452 and a lower electrode buckle piece 454, and correspondingly, the first mounting seat 46 includes a lower electrode fixing buckle 463, and the lower electrode is buckled to the lower electrode fixing buckle 463 by the lower electrode buckle 452 and the lower electrode buckle piece 454. A first positioning post 461 is further disposed in the middle of the first mounting seat 46, one end of the first elastic element 44 is sleeved on the first positioning post 461, and the other end of the first elastic element abuts against the shielding plate 43. A fastening hole 412 is formed in a side wall of the lower end of the housing 41, and the first mounting seat 46 is fastened to the fastening hole 412 through a first mounting seat fastening 462. The upper end of the lower electrode 45 is further provided with a lower electrode contact 451, when the lower electrode 45 is conducted with the upper electrode 33, the lower electrode contact 451 is contacted with the upper electrode 33, preferably, the lower electrode contact 451 is made of a material with excellent conductivity, such as copper or a plating layer, so that the conductivity of the coupler can be improved, and the performance reduction caused by oxidation generated between the electrodes after the coupler is plugged for a long time can be prevented. And the lower electrode is clamped in the shell through the first mounting seat, so that the lower electrode is convenient to assemble and disassemble, the production efficiency is high, and the lower electrode is convenient to maintain. The lower end of the lower electrode 45 is provided with a lower electrode clamping groove 453, and the lower electrode 45 is connected with an electrode through the lower electrode clamping groove 453 and finally connected with a power supply or a control panel.

The switch unit 5 is disposed in the housing 41, the switch unit 5 is mounted on the second mounting seat 47 through a second mounting seat positioning plate 472, and the second mounting seat 47 is fastened to the fastening hole 412 through a second mounting seat fastener 471. The switch unit 5 comprises an installation shell 50, a movable elastic sheet 51, a static elastic sheet 52, a second elastic piece 53 and a movable rod 54, wherein the movable elastic sheet 51, the static elastic sheet 52, the second elastic piece 53 and the movable rod 54 are arranged in the installation shell 50, the shell 51 is provided with a sliding groove 500, the movable rod 54 is arranged in the sliding groove 500 and extends into the installation shell 50, one end of the second elastic piece 53 is connected with the movable elastic sheet 51, the other end of the second elastic piece is connected with the installation shell 50, when the movable rod 54 is stressed, the movable elastic sheet can be pushed and pressed, and the second elastic piece 53 finally enables the movable elastic sheet 51 to be in contact with the static elastic sheet 52 to trigger the switch unit. Preferably, the second elastic member 53 is an elastic sheet, and the second elastic member 53 is configured to push the movable elastic sheet 51 to perform an instantaneous motion, that is, when the second elastic member 53 deforms under the urging of the movable rod 54, the movable elastic sheet 51 is not immediately pushed to perform a motion, but when a touch state or a trigger position is reached, the movable elastic sheet 51 is rapidly pushed to be in contact with the stationary elastic sheet 52, so that the advantage of the configuration is that: usually the switch unit is used for switching on the forceful electric power, 220V commercial power, and when the movable elastic sheet and the static elastic sheet slowly get close to and contact the in-process, can produce when not contacting between the two and discharge, the electric spark can destroy the contact of movable elastic sheet and static elastic sheet for the contact conductivity descends, thereby makes the switch unit performance descend, and sensitivity reduces, and then influences food preparation machine's normal use, and the electric spark can arouse serious danger such as firing when serious. The second elastic piece is set to push the movable elastic piece to be triggered instantly, so that the movable elastic piece and the static elastic piece are contacted and conducted in a very short time, electric sparks are not generated or a contact is not damaged in time, the service life of the switch unit is ensured, and the normal use of the food processor is further ensured.

The lower electrode 45 and the switch unit 5 are respectively clamped in the housing 41 through the first mounting seat 46 and the second mounting seat 47, when the coupler is assembled, the lower electrode can be mounted on the first mounting seat, the switch unit can be mounted on the second mounting seat, and then the first mounting seat and the second mounting seat are fixed in the housing, and therefore when the lower coupler is assembled and maintained, the lower coupler can be respectively disassembled according to different functions, for example, when the switch unit 5 needs to be replaced, only the second mounting seat 47 needs to be disassembled, so that the switch unit 5 is disassembled for maintenance, and the lower electrode 45 does not need to be disassembled together. Thus, the maintenance cost is greatly reduced. Of course, the lower electrode and the switch unit may be engaged with the housing through an integrated mounting seat, which may reduce one part.

The shutter 43 is provided with a pushing portion 435, the pushing portion 435 is a protrusion provided on a side of the shutter 43, the pushing portion 435 can push the movable rod 54 to trigger the switch unit 5 when the shutter 43 slides downward, and preferably, the pushing portion 435 is provided with a pushing surface 436, the pushing surface 436 is an inclined surface provided along a sliding direction of the shutter 43, and the inclined surface is gradually increased along the sliding direction. Preferably, the trigger procedure of the coupler setting is set as follows: when the upper coupler is in a plugging process, the shielding plate is pushed to open the first through hole, the upper electrode is inserted into the shell to be in contact conduction with the lower electrode, after the upper electrode is in contact conduction with the lower electrode, the switch unit is triggered by the trigger stroke of the pushing part, the food processor is further electrified, and electric power and signal transmission are achieved between the base and the stirring cup through the coupler. The advantages of such an arrangement are: the switch unit can be triggered by the shielding plate without an independent trigger structure, the structure is simple, the coupler is switched on and the switch unit is triggered to realize linkage, and the reliability is higher. And the conduction stroke of the upper electrode and the lower electrode is smaller than the trigger stroke of the switch unit, so that the food processor can be powered on after the upper electrode and the lower electrode are contacted firstly, namely in the contact process of the upper electrode and the lower electrode, the upper electrode and the lower electrode only have mechanical contact or sliding because the switch unit is not conducted, the problems of discharge and the like generated in the process of conductive conduction of the upper electrode and the lower electrode in a belt are effectively solved, the use reliability of the upper electrode and the lower electrode is effectively improved, and the service life of the coupler is further prolonged.

A partition 415 is further disposed in the housing 41, the lower electrode 45 and the switch unit 5 are respectively disposed on two sides of the partition 415, the partition 415 is provided with a trigger slot 416, and the pushing portion 435 and the movable rod 54 can be in contact through the trigger slot 416. The inner wall of the housing 41 is further provided with a fixing rib 414 for positioning the lower electrode and the switch unit. Through setting up the baffle, make bottom electrode with the switch element is in keep apart in the casing, bottom electrode with the switch element can not mutual interference, prevents to take place electric danger such as short circuit between bottom electrode and the switch element for the coupler security is higher. Meanwhile, the partition plate can also improve the mechanical strength of the shell, so that the shell is not deformed, and the use reliability of the coupler is also ensured. And the switch unit is conducted through the trigger slot, so that the normal trigger of the switch unit is not influenced. And the lower electrode and the switch unit are positioned by arranging the fixing ribs, so that the stable structure of the lower coupler is ensured.

As shown in fig. 3-6, the shielding plate 43 is provided with an isolation rib 433, the isolation rib 433 is disposed on the lower surface of the shielding plate 43, the isolation rib 433 extends downward and is inserted into the position space of the lower electrode 45, the isolation rib 433 separates the space in the housing 41 to form a plurality of isolation cavities, and the plurality of lower electrodes 45 are respectively located in the isolation cavities, so that only one lower electrode is located in a single isolation cavity. The advantages of such an arrangement are: through setting up the isolation muscle and the isolation chamber that forms for mutual isolation can not mutual interference between the bottom electrode, has reduced the risk of mutual short circuit between the bottom electrode, promotes the safety in utilization of coupler.

As shown in fig. 6, the shielding plate 43 is further provided with a guiding surface 434, the guiding surface 434 is arranged opposite to the lower electrode 45, and the guiding surface 434 is arranged along the sliding direction of the shielding plate 43, so that the shielding plate 43 forms a wedge shape with a large top and a small bottom at the position opposite to the lower electrode 45. When the upper coupler is plugged with the lower coupler, the upper coupler presses the shielding plate 43 and pushes the shielding plate 43 to slide downwards, the guide surface 434 is gradually contacted with the lower electrode 45 and pushes the lower electrode 45 to expand outwards to open a space for the upper electrode 33, after the upper electrode 33 is inserted into the space of the lower electrode 45, the shielding plate 43 releases the lower electrode 45, and the lower electrode 45 restores the original state and is contacted and conducted with the upper electrode 33. The advantages of such an arrangement are: by arranging the guide surface, the lower electrode is only contacted with the upper electrode at the later stage of plugging in the process of plugging the upper coupler, the contact is not needed to be completed at the early stage and is always in a sliding friction state, the lower electrode and the upper electrode are protected, and the conduction reliability of the upper electrode and the lower electrode is effectively improved. Meanwhile, the contact is made of a material with good conductivity, so that the conductivity of point contact can be improved.

The benefits of this arrangement are: the switch unit is arranged in the coupler, so that the food processor is simple in structure, few in positioning structure, convenient to install and use and high in reliability. The lower electrode and the switch unit are integrally arranged, the lower electrode and the switch unit can be connected only through one circuit, and the internal circuit is simple and beneficial to processing and assembling of the food processor.

It can be understood that the switch unit can also be directly clamped in the shell without arranging a mounting seat.

It can be understood that the mixing cup can be an integrated cup body without a cup seat.

It can be understood that the food processor comprises a base and a stirring cup, the stirring cup is arranged on the base, the stirring cup is fixed on the base in a rotating mode, the lower coupler is arranged on the base, when the upper coupler is rotatably arranged on the stirring cup, the side wall of the lower coupler is inserted into the lower coupler to realize conduction, the lower coupler comprises a shell, one side of the shell is provided with an opening, the shell is also provided with a first through hole for an upper electrode to pass through, and the first through hole is arranged on one side adjacent to the opening.

It will be appreciated that the housing of the lower coupler may also be formed from two snap connections, so that the housing need not be provided with an opening.

It can be understood that a mounting sinking platform is further arranged below the machine base, the upper coupler is mounted on the mounting sinking platform, and the lower coupler can pass through the mounting sinking platform and is coupled with the upper coupler.

It will be appreciated that the mixing cup may be provided without a handle, and the upper and lower couplers may be eccentrically located relative to the coupling.

It will be appreciated that the upper coupler is not disposed below the handle but is centered on the coupling at an angle to the handle.

It will be appreciated that the coupler may also be provided in a cylindrical shape.

Example two

As a second embodiment of the convenient and safe food processor of the present invention, the main differences from the first embodiment are: the switch unit is not provided with a mounting case.

As shown in fig. 7 and 8, in the present embodiment, the coupler includes an upper coupler 3 and a lower coupler 4, and the upper coupler 3 includes a fixed shell 31, an upper electrode 32, and a fixed plate 34.

The lower coupler 4 includes a housing 41, a lower electrode 45, a switch unit 5, a first mounting seat 46, and a second mounting seat 47. The upper surface of the housing 41 is provided with a first through hole 410, and the housing 41 is provided with a shielding plate 43 for shielding the first through hole 410 and a first elastic member 44 for pushing the shielding plate 43.

The switch unit 5 comprises a movable elastic sheet 51 and a static elastic sheet 52, the static elastic sheet 51 and the movable elastic sheet 52 are mounted on the second mounting seat 47, and the mounting seat 47 is clamped in the casing 41. The switch unit 5 further includes a movable frame 56, a second elastic member 53 and a third elastic member 57, one end of the second elastic member 53 is connected to the movable frame 56, and the other end is connected to the movable elastic sheet 51, preferably, the second elastic member 53 is a spring and is provided in two. The side wall of the movable frame 56 is provided with a movable frame protrusion 560, the side wall of the shielding plate 43 is provided with a pushing part 435, the pushing part 435 pushes the protrusion 560 when the shielding plate 43 slides downwards, and drives the second elastic part 53 and finally drives the movable elastic piece 51 to be in contact with the static elastic piece 52, and the second elastic part 53 is configured to push the movable elastic piece 51 to move instantaneously. The third elastic member 57 can push the movable frame 56 to reset, and finally drive the movable elastic sheet 51 to separate from the static elastic sheet 52 to disconnect the power supply.

The second mounting seat 47 is further provided with a supporting column 470, and the supporting column 470 is used for supporting and limiting the movable elastic sheet 51, so that the movable elastic sheet 51 is prevented from deforming under stress, and the switch unit 5 is ensured to be used reliably.

The advantages of the embodiment are: the movable elastic sheet and the static elastic sheet are detachably arranged in the shell of the lower coupler through the second mounting seat, the structure is simple, the disassembly is convenient, and after the second mounting seat is disassembled, the movable elastic sheet and the static elastic sheet are directly visible, so that the maintenance of the switch unit is convenient. Moreover, the cost of the switch unit can be reduced by removing the installation shell.

It is understood that the second elastic member may also be a spring. The number may be set to 1 or more.

It is understood that the pushing portion can also directly push the movable frame without separately providing a movable frame protrusion. The movable frame can also be directly pushed by the upper coupler.

EXAMPLE III

As a third embodiment of the convenient and safe food processor of the present invention, the main differences from the first embodiment are: the trigger structures of the switch units are different.

As shown in fig. 9 and 10, the lower coupler includes a housing 41, a first through hole 410 is formed in an upper surface of the housing 41, the first through hole 410 is a long strip-shaped hole arranged side by side on a side of the lower electrode, and a large through hole on a side of the switch unit, so that the first through hole is integrally concave, and a convex rib having a shape corresponding to that of the first through hole 410 is formed on an upper surface of the shielding plate 43 to close the first through hole. The shutter 43 is provided with a pushing part 435 above the opening and closing unit 5, and preferably, the pushing part 435 has an inclined surface.

The switch unit 5 is disposed in the housing 41, the switch unit 5 includes a movable rod 54 and a fourth elastic member 540, and the switch unit 5 is clamped in the housing 41 through a second mounting seat 47. A sliding slot 417 is further disposed in the housing 41, and the movable rod 54 can slide in the sliding slot 417 and reset under the pushing of the fourth elastic member 540. The upper end of the movable rod 54 is provided with an inclined surface matched with pushing. When the shielding plate moves downwards under the pressure of the upper coupler, the pushing part pushes the movable rod to move downwards and drives the switch unit to be triggered and conducted; when the upper coupler is separated from the lower coupler, the movable rod is driven by the fourth elastic piece to slide upwards to reset and drive the switch unit to be disconnected.

The advantages of the embodiment are: the shielding plate directly presses the movable rod and drives the switch unit to trigger, and the structure is simple and the reliability is high. The inclined plane is arranged, force is exerted uniformly when the switch unit is pushed, and the switch unit operates stably.

It can be understood that the switch unit is not provided with a transient trigger structure, and the normal function of the switch unit can be realized.

It can be understood that the pushing part is not provided with an inclined plane, and the upper end of the corresponding movable rod is not required to be provided with an inclined plane.

It will be appreciated that the first through hole may be provided as two elongated holes arranged side by side and extending from above the lower electrode to above the switching unit, the shutter being adapted to activate the switching unit when the upper coupler is plugged.

Example four

As a fourth embodiment of the convenient and safe food processor of the present invention, the main differences from the first embodiment are: the switch unit structure is set to be two.

As shown in fig. 11, the coupler includes an upper coupler 3 and a lower coupler 4, the upper coupler 3 includes a fixed housing 31, an upper electrode 33, and a fixed plate 34, and the upper electrode 33 and the fixed plate 34 are mounted in the fixed housing 31. The upper coupler is provided with a trigger part, the trigger part is a trigger rod 343 arranged on the fixed plate 34, and the trigger rod 343 is a cylinder arranged on the lower surface of the fixed plate 34.

The lower coupler 4 includes a housing 41, a lower electrode 45 and a switch unit, the upper surface of the housing 41 is provided with a first through hole 410 and a second through hole 418, a shielding plate 43 disposed in the housing 41 can shield the first through hole 410, a first elastic member 44 is used for pushing the shielding plate 43, and the lower electrode 45 is clamped in the housing 41 through a first mounting seat 46.

The switch unit comprises a second movable rod 58, a fifth elastic element 580, a movable elastic sheet 51, a static elastic sheet 52 and a fixed block 55, and the switch unit is clamped in the shell 41 through a second mounting seat 47. The movable elastic sheet 51 and the static elastic sheet 52 are mounted on the fixed block 55, preferably, the movable elastic sheet 51, the static elastic sheet 52 and the fixed block 55 are integrally formed, the movable elastic sheet 51 and the static elastic sheet 52 are long metal plates, and the fixed block 55 is located in the middle of the fixed block, so that one ends of the movable elastic sheet 51 and the static elastic sheet 52 are connected, and the other ends of the movable elastic sheet 51 and the static elastic sheet 52 are connected with a wire and are connected with the outside to achieve a switching function.

The movable spring piece 51 is further provided with a movable spring piece protrusion 511, the movable spring piece protrusion 511 is formed by bending a metal sheet, and the second movable rod 58 can slide in the shell 41 and can push the movable spring piece protrusion 511 and drive the movable spring piece 51 to deform to be in contact with and conducted with the static spring piece 52. The fifth elastic member 580 may push the movable lever 58 to be reset and turn off the switching unit.

The movable elastic sheet 51, the static elastic sheet 52 and the fixed block 55 are arranged in two groups, and are respectively connected and fixed with the second mounting seat 47 and clamped in the casing 41. When the movable rod 58 presses the movable spring plate 51, the two spring plates are respectively conducted.

The matching mode of the coupler is as follows: when the upper coupler is plugged, the upper electrode and the lower electrode are in mutual contact to realize coupling function electric transmission. The trigger rod is inserted into the second through hole and then presses the second movable rod, the second movable rod further pushes the movable elastic sheet to be protruded, the movable elastic sheet is deformed and is in contact conduction with the static elastic sheet, and therefore the switch function is achieved.

The advantages of this embodiment are: the two groups of switch unit structures are arranged, even when one group of switch units cannot work normally, the other group of switch units can work normally, and the reliability of the switch units is ensured.

It is understood that the switch unit assemblies may be arranged in multiple groups. Two or more groups of switch units can work simultaneously, respectively or in a combined mode. For example, 2 switch units numbered 1 and 2 can realize the selection of 1 conduction, 2 conduction and 1 and 2 conduction at the same time. By the working mode, different functions can be selected according to different stirring cups. For example, the food processor may include a mixing cup with a heating function, a mixing cup without a heating function, a mixing cup for dry grinding and crushing, a mixing cup for grinding meat, a mixing cup for kneading dough, and the like, and different mixing cups may have different functions. And through setting up multiunit switch element, when the stirring cup of difference was placed, can trigger different switch elements, perhaps different switch element combination to make food processor can set up the stirring cup of different functions automatically, and then can the automatic selection program that corresponds. The intelligent degree of the food processor is improved. In addition, the food processor is identified by a mechanical switch, and is not differentiated by a program, so that the reliability is higher.

It can be understood that the trigger rod can also directly pass through the second through hole and press the movable elastic sheet protrusion and drive the switch unit to be conducted.

It can be understood that the housing is not provided with the second through hole, but is provided with an integrated first through hole, and the upper electrode and the trigger rod both pass through the first through hole and respectively realize the coupling function and the switching function.

EXAMPLE five

As a fifth embodiment of the convenient and safe food processor of the present invention, the main differences from the first embodiment are: the food processor is structurally different.

As shown in fig. 12, the food processor includes a machine head 200 and a stirring cup 1, the upper end of the stirring cup 1 is open, the machine head 200 is disposed at the opening, the machine head 200 is provided with a motor 201, the head end of the motor 201 is provided with a crushing knife 202, and the crushing knife 202 extends into the stirring cup 1. The stirring cup 1 comprises a metal inner cup 101 and a plastic outer cup 102, and a heating pipe 103 is arranged on the side wall of the lower end of the metal inner cup 101.

The handpiece 200 and the stirring cup 1 are electrically connected through the upper coupler 3 and the lower coupler 4. The coupler 3 and the lower coupler 4 can be replaced by the solutions of the above embodiments.

It will be appreciated that the coupler structure of the present invention may also be used in other food processors that utilize both a coupler and a switch unit structure.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, i.e. all equivalent changes and modifications made according to the present invention are covered by the scope of the claims of the present invention, which is not illustrated herein.

Claims (10)

1. A safe coupler assembly of a food processor comprises an upper coupler and a lower coupler which are mutually inserted and matched, wherein the upper coupler comprises a fixed shell and an upper electrode, the lower coupler comprises a shell and a lower electrode positioned in the shell, the shell is provided with a first through hole for the upper electrode to pass through, and the upper electrode and the lower electrode are electrically connected when the coupler assembly is inserted.

2. The coupler assembly of claim 1, wherein the switch unit further comprises an instant trigger structure connected to the movable spring plate, the instant trigger structure pushing the movable spring plate to be instantly conducted with the static spring plate when the switch unit reaches a trigger position, and keeping a safety distance between the movable spring plate and the static spring plate when the switch unit does not reach the trigger position.

3. The coupler assembly of claim 2, wherein the transient trigger structure comprises a second elastic member, one end of the second elastic member is connected with the switch unit, and the other end of the second elastic member is connected with the movable elastic sheet and can push the movable elastic sheet to be conducted with the static elastic sheet.

4. The coupler assembly of claim 3, wherein the switch unit further comprises a mounting shell and a movable rod, the stationary elastic piece, the movable elastic piece and the second elastic piece are disposed in the mounting shell and further disposed in the housing, the mounting shell is provided with a sliding groove, the movable rod can slide in the sliding groove, and the movable rod can push the movable elastic piece to be connected with the stationary elastic piece when the coupler assembly is plugged.

5. The coupler assembly of claim 3, wherein the switch unit further comprises a movable frame and a third elastic member for pushing the movable frame, one end of the second elastic member is connected with the movable frame, the other end of the second elastic member is connected with a movable elastic sheet, the movable frame can slide up and down in the housing, and the movable frame can push the movable elastic sheet to be conducted with the static elastic sheet when the coupler assembly is plugged.

6. The coupler assembly of claim 1, wherein the housing is square and has an opening on one side, the first through hole is disposed on an opposite side of the opening, and the stationary housing is correspondingly square.

7. The coupler assembly of claim 6, wherein the first through-hole is disposed on a side opposite the opening, the first through-hole comprising two elongated holes side-by-side.

8. The coupler assembly of claim 1, wherein the upper coupler further comprises a retaining plate having an electrode slot, the upper electrode being positioned within the electrode slot.

9. The coupler assembly of claim 8, wherein the fixed plate includes two, and the plurality of upper electrode slots are disposed on opposite sides of the fixed plate.

10. A reliable food processor comprises a base and a stirring cup arranged on the base, wherein a motor and a control panel are arranged in the base, the stirring cup comprises a cup body and a cup cover arranged at an opening at the upper end of the cup body, a crushing knife is arranged in the cup body, and the crushing knife is in power connection with the motor through a coupling, and the reliable food processor is characterized in that the stirring cup is electrically connected with the base through a coupler assembly, the coupler assembly is the coupler assembly in any one of claims 1 to 9, a handle is arranged on the side wall of the stirring cup, an upper coupler is arranged below the handle, and a lower coupler is positioned at the position, corresponding to the upper coupler, of the base.

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